{Intracellular dynamics in rotavirus-like particles production: Evaluation of multigene and monocistronic infection strategies} - Roldao, Antonio; Vieira, Helena L. A.; Alves, Paula M.; Oliveira, R.; Carrondo, Manuel J. T. (PROCESS BIOCHEMISTRY)
n/a
n/a

{Multivariate statistical modelling of mass transfer in a membrane-supported biofilm reactor} - Ricardo, Ana R.; Oliveira, Rui; Velizarov, Svetlozar; Reis, Maria A. M.; Crespo, Joao G (PROCESS BIOCHEMISTRY)
n/a
n/a

{PVA embedded hydrotalcite membranes as basic catalysts for biodiesel synthesis by soybean oil methanolysis} - L. Guerreiro; Pereira, P. M.; Fonseca, I. M.; Martin-Aranda, R. M.; Ramos, A. M.; Dias, J. M. L.; Oliveira, R.; Vital, J (CATALYSIS TODAY)
n/a
n/a

{Decomposition of protonated ronidazole studied by low-energy and high-energy collision-induced dissociation and density functional theory} - Pandeti, Sukanya; Ameixa, Joao; Khreis, Jusuf M.; Feketeova, Linda; Chirot, Fabien; Reddy, Thota J.; Abdoul-Carime, Hassan; da Silva, Filipe Ferreira; Denifl, Stephan; O'Hair, Richard A. J.; Farizon, Bernadette; Farizon, Michel; et al. (JOURNAL OF CHEMICAL PHYSICS)
n/a
n/a

{Low-energy electron-induced decomposition of 5-trifluoromethanesulfonyl-uracil: A potential radiosensitizer} - Ameixa, J.; Arthur-Baidoo, E.; Meissner, R.; Makurat, S.; Kozak, W.; Butowska, K.; Ferreira da Silva, F.; Rak, J.; Denifl, S. (JOURNAL OF CHEMICAL PHYSICS)
n/a
n/a

{Comprehensive investigation of the electronic excitation of W(CO)(6) by photoabsorption and theoretical analysis in the energy region from 3.9 to 10.8 eV} - Mendes, Monica; Regeta, Khrystyna; da Silva, Filipe Ferreira; Jones, Nykola C.; Hoffmann, Soren Vronning; Garcia, Gustavo; Daniel, Chantal; Limao-Vieira, Paulo (BEILSTEIN JOURNAL OF NANOTECHNOLOGY)
n/a
n/a

{Mathematical modelling of a mixed culture cultivation process for the production of polyhydroxybutyrate} - Dias, J. M. L.; Serafim, L. S.; Lemos, P. C.; Reis, M. A. M.; Oliveira, R. (BIOTECHNOLOGY AND BIOENGINEERING)
n/a
n/a

{Quantitative Proteomics of Spodoptera frugiperda Cells during Growth and Baculovirus Infection} - Carinhas, Nuno; Robitaille, Aaron Mark; Moes, Suzette; Teixeira Carrondo, Manuel Jose; Jenoe, Paul; Oliveira, Rui; Alves, Paula Marques (PLOS ONE)
n/a
n/a

{Emulsifying behaviour and rheological properties of the extracellular polysaccharide produced by Pseudomonas oleovorans grown on glycerol byproduct} - Freitas, Filomena; Alves, Vitor D.; Carvalheira, Monica; Costa, Nuno; Oliveira, Rui; Reis, Maria A. M. (CARBOHYDRATE POLYMERS)
n/a
n/a

{Solution properties of an exopolysaccharide from a Pseudomonas strain obtained using glycerol as sole carbon source} - Hilliou, Loic; Freitas, Filomena; Oliveira, Rui; Reis, Maria A. M.; Lespineux, David; Grandfils, Christian; Alves, Vitor D. (CARBOHYDRATE POLYMERS)
n/a
n/a

{Conversion of glycerol into a new high-value fucose-containing bacterial exopolysaccharide} - Freitas, F.; Torres, C. A. V.; Alves, V.; Cruz, M.; Oliveira, R.; Reis, M. A. M. (JOURNAL OF BIOTECHNOLOGY)
n/a
{14th International Biotechnology Symposium and Exhibition (IBS), Rimini, ITALY, SEP 14-18, 2010}

{Metabolic modeling of polyhydroxyalkanoates (PHA) production from complex mixtures of competing volatile fatty acids (VFA) by mixed microbial cultures (MMC)} - Pardelha, F.; Albuquerque, M. G. E.; Reis, M. A. M.; Oliveira, R.; Dias, J. M. L. (JOURNAL OF BIOTECHNOLOGY)
n/a
{14th International Biotechnology Symposium and Exhibition (IBS-2008), Rimini, ITALY, SEP 14-18, 2010}

{New Microbial Fucose-Containing Polysaccharide from Glycerol byproduct: Rheological Studies} - Torres, Cristiana A. V.; Freitas, Filomena; Alves, Vtor D.; Cruz, Madalena; Oliveira, Rui; Reis, Maria A. M. (JOURNAL OF BIOTECHNOLOGY)
n/a
{14th International Biotechnology Symposium and Exhibition (IBS), Rimini, ITALY, SEP 14-18, 2010}

{Production of chitin-glucan complex (CGC) from biodiesel industry byproduct} - Chagas, B.; Freitas, F.; Mafra, L.; Cortez, J.; Oliveira, R.; Reis, M. A. M. (JOURNAL OF BIOTECHNOLOGY)
n/a
{14th International Biotechnology Symposium and Exhibition (IBS-2008), Rimini, ITALY, SEP 14-18, 2010}

{Production of yeast chitin-glucan complex from biodiesel industry byproduct} - Roca, Christophe; Chagas, Barbara; Farinha, Ines; Freitas, Filomena; Mafra, Luis; Aguiar, Filipe; Oliveira, Rui; Reis, Maria A. M. (PROCESS BIOCHEMISTRY)
n/a
{14th International Biotechnology Symposium and Exhibition (IBS), Rimini, ITALY, SEP 14-18, 2010}

{Recent advances in polyhydroxyalkanoate production by mixed aerobic cultures: From the substrate to the final product} - Dias, Joao M. L.; Lemos, Paulo C.; Serafim, Luisa S.; Oliveira, Cristina; Eiroa, Marta; Albuquerque, Maria G. E.; Ana M. Ramos; Oliveira, Rui; Reis, Maria A. M. (MACROMOLECULAR BIOSCIENCE)
n/a
n/a

{Valence and Rydberg Excitations of 2,4-and 2,6-Difluorotoluene as Studied by Vacuum Ultraviolet Synchrotron Radiation and ab lnitio Calculations} - Barbosa, A. Souza; Da Silva, F. Ferreira; Rebelo, A.; Hoffmann, S. V.; Bettega, M. H. F.; Limao-Vieira, P. (JOURNAL OF PHYSICAL CHEMISTRY A)
n/a
n/a

{Dissociative excitation study of iron pentacarbonyl molecule (vol 69, 117, 2015)} - Ribar, Anita; Danko, Marian; Orszagh, Juraj; da Silva, Filipe Ferreira; Utke, Ivo; Matejcik, Stefan (EUROPEAN PHYSICAL JOURNAL D)
n/a
n/a

{Electron transfer to aliphatic amino acids in neutral potassium collisions} - Da Silva, F. Ferreira; Rafael, J.; Cunha, T.; Almeida, D.; Limao-Vieira, P. ({INTERNATIONAL JOURNAL OF MASS SPECTROMETRY})
n/a
n/a

{Production of a new exopolysaccharide (EPS) by Pseudomonas oleovorans NRRL B-14682 grown on glycerol} - Freitas, Filomena; Alves, Vitor D.; Pais, Joana; Carvalheira, Monica; Costa, Nuno; Oliveira, Rui; Reis, Maria A. M. (PROCESS BIOCHEMISTRY)
n/a
n/a

{On-Line Adaptive Metabolic Flux Analysis: Application to PHB Production by Mixed Microbial Cultures} - Dias, Joao M. L.; Pardelha, Filipa; Eusebio, Mario; Reis, Maria A. M.; Oliveira, Rui (BIOTECHNOLOGY PROGRESS)
n/a
n/a

{Effect of temperature on the dynamic and steady-shear rheology of a new microbial extracellular polysaccharide produced from glycerol byproduct} - Alves, Vitor D.; Freitas, Filomena; Costa, Nuno; Carvalheira, Monica; Oliveira, Rui; Goncalves, Maria P.; Reis, Maria A. M. (CARBOHYDRATE POLYMERS)
n/a
n/a

{Hybrid modeling of counterion mass transfer in a membrane-supported biofilm reactor} - Ricardo, Ana R.; Oliveira, Rui; Velizarov, Svetlozar; Reis, Maria A. M.; Crespo, Joao G (BIOCHEMICAL ENGINEERING JOURNAL)
n/a
n/a

{Modeling rotavirus-like particles production in a baculovirus expression vector system: Infection kinetics, baculovirus DNA replication, mRNA synthesis and protein production} - Roldao, Antonio; Vieira, Helena L. A.; Charpilienne, Annie; Poncet, Didier; Roy, Polly; Carrondo, Manuel J. T.; Alves, Paula M.; Oliveira, R. (JOURNAL OF BIOTECHNOLOGY)
n/a
n/a

{Hybrid modeling for quality by design and PAT - benefits and challenges of applications in biopharmaceutical industry} - von Stosch, Moritz; Davy, Steven; Francois, Kjell; Galvanauskas, Vytautas; Hamelink, Jan-Martijn; Luebbert, Andreas; Mayer, Martin; Oliveira, Rui; O'Kennedy, Ronan; Rice, Paul; Glassey, Jarka (BIOTECHNOLOGY JOURNAL)
n/a
n/a

{Kinetic-energy release distributions of fragment anions from collisions of potassium atoms with D-Ribose and tetrahydrofuran} - Rebelo, Andre; Cunha, Tiago; Mendes, Monica; da Silva, Filipe Ferreira; Garcia, Gustavo; Limao-Vieira, Paulo (EUROPEAN PHYSICAL JOURNAL D)
n/a
n/a

{Hydration of alpha-pinene over molybdophosphoric acid immobilized in hydrophobically modified PVA membranes} - Castanheiro, JE; Fonseca, I. M.; Ramos, A. M.; Oliveira, R.; Vital, J (CATALYSIS TODAY)
n/a
{6th International Conference on Catalysis in Membrane Reactors (ICCMR-6), Lahnstein, GERMANY, JUL 06-09, 2004}

{Dynamic metabolic modelling of volatile fatty acids conversion to polyhydroxyalkanoates by a mixed microbial culture} - Pardelha, Filipa; Albuquerque, Maria G. E.; Reis, Maria A. M.; Oliveira, Rui; Dias, Joao M. L. (NEW BIOTECHNOLOGY)
n/a
n/a

{Error assessment in recombinant baculovirus titration: Evaluation of different methods} - Roldao, Antonio; Oliveira, Rui; Carrondo, Manuel J. T.; Alves, Paula M. (JOURNAL OF VIROLOGICAL METHODS)
n/a
n/a

{Metabolic modelling of polyhydroxyalkanoate copolymers production by mixed microbial cultures} - Dias, Joao M. L.; Oehmen, Adrian; Serafim, Luisa S.; Lemos, Paulo C.; Reis, Maria A. M.; Oliveira, Rui (BMC SYSTEMS BIOLOGY)
n/a
n/a

{Rheological and morphological characterization of the culture broth during exopolysaccharide production by Enterobacter sp.} - Alves, Vitor D.; Freitas, Filomena; Torres, Cristiana A. V.; Cruz, Madalena; Marques, Rodolfo; Grandfils, Christian; Goncalves, M. P.; Oliveira, Rui; Reis, Maria A. M. (CARBOHYDRATE POLYMERS)
n/a
n/a

{Assessment of Recent Process Analytical Technology (PAT) Trends: A Multiauthor Review} - Simon, Levente L.; Pataki, Hajnalka; Marosi, Gyoergy; Meemken, Fabian; Hungerbuehler, Konrad; Baiker, Alfons; Tummala, Srinivas; Glennon, Brian; Kuentz, Martin; Steele, Gerry; Kramer, Herman J. M.; Rydzak, James W.; et al. (ORGANIC PROCESS RESEARCH & DEVELOPMENT)
n/a
n/a

{Characterization of an extracellular polysaccharide produced by a Pseudomonas strain grown on glycerol} - Freitas, Filomena; Alves, Vitor D.; Pais, Joana; Costa, Nuno; Oliveira, Cristina; Mafra, Luis; Hilliou, Loic; Oliveira, Rui; Reis, Maria A. M. (BIORESOURCE TECHNOLOGY)
n/a
n/a

{Stochastic simulation of protein expression in the baculovirus/insect cells system} - Roldao, Antonio; Carrondo, Manuel J. T.; Alves, Paula M.; Oliveira, R. (COMPUTERS & CHEMICAL ENGINEERING)
n/a
{Process Systems Engineering Conference/16th European Symposium on Computer Aided Process Engineering (ESCAPE-16), Garmisch Partenkirchen, GERMANY, 2006}

{On the Effect of Thermodynamic Equilibrium on the Assembly Efficiency of Complex Multi-Layered Virus-Like Particles (VLP): the Case of Rotavirus VLP} - Roldao, Antonio; Mellado, Maria Candida M.; Lima, J.C.; Carrondo, Manuel J. T.; Alves, Paula M.; Oliveira, R. (PLOS COMPUTATIONAL BIOLOGY)
n/a
n/a

{How can measurement, monitoring, modeling and control advance cell culture in industrial biotechnology?} - Carrondo, Manuel J. T.; Alves, Paula M.; Carinhas, Nuno; Glassey, Jarka; Hesse, Friedemann; Merten, Otto-Wilhelm; Micheletti, Martina; Noll, Thomas; Oliveira, Rui; Reichl, Udo; Staby, Arne; Teixeira, Ana P.; et al. (BIOTECHNOLOGY JOURNAL)
n/a
n/a

{Flux balance analysis of mixed microbial cultures: Application to the production of polyhydroxyalkanoates from complex mixtures of volatile fatty acids} - Pardelha, Filipa; Albuquerque, Maria G. E.; Reis, Maria A. M.; Dias, Joao M. L.; Oliveira, Rui (JOURNAL OF BIOTECHNOLOGY)
n/a
n/a

{Kinetics of production and characterization of the fucose-containing exopolysaccharide from Enterobacter A47} - Torres, Cristiana A. V.; Marques, Rodolfo; Antunes, Silvia; Alves, Vitor D.; Sousa, Isabel; Ramos, Ana Maria; Oliveira, Rui; Freitas, Filomena; Reis, Maria A. M. (JOURNAL OF BIOTECHNOLOGY)
n/a
n/a

{Segregated flux balance analysis constrained by population structure/function data: The case of PHA production by mixed microbial cultures} - Pardelha, F.; Albuquerque, M. G. E.; Carvalho, G.; Reis, M. A. M.; Dias, J. M. L.; Oliveira, R. (BIOTECHNOLOGY AND BIOENGINEERING)
n/a
n/a

{Electronic State Spectroscopy of Halothane As Studied by ab Initio Calculations, Vacuum Ultraviolet Synchrotron Radiation, and Electron Scattering Methods} - Ferreira da Silva, F.; Duflot, D.; Hoffmann, S. V.; Jones, N. C.; Rodrigues, F. N.; Ferreira-Rodrigues, A. M.; de Souza, G. G. B.; Mason, N. J.; Eden, S.; Limao-Vieira, P. (JOURNAL OF PHYSICAL CHEMISTRY A)
n/a
n/a

{On-line monitoring of PHB production by mixed microbial cultures using respirometry, titrimetry and chemometric modelling} - Dias, Joao M. L.; Pardelha, Filipa; Eusebio, Mario; Reis, Maria A. M.; Oliveira, Rui (PROCESS BIOCHEMISTRY)
n/a
n/a

{Dissociative excitation study of iron pentacarbonyl molecule} - Ribar, Anita; Danko, Marian; Orszagh, Juraj; da Silva, Filipe Ferreira; Utke, Ivo; Matejcik, Stefan (EUROPEAN PHYSICAL JOURNAL D)
n/a
n/a

{Rheological and morphological characterization of the culture broth during exopolysaccharide production by Enterobacter sp. (vol 80, pg 325, 2010)} - Alves, Vitor D.; Freitas, Filomena; Torres, Cristiana A. V.; Cruz, Madalena; Marques, Rodolfo; Grandfils, Christian; Goncalves, M. P.; Oliveira, Rui; Reis, Maria A. M. (CARBOHYDRATE POLYMERS)
n/a
n/a

Cayley-Menger extension of metrics on affine spaces - Ana Casimiro; César Rodrigo

Diferentes tecnologias e a forma como enfatizam a relevância de diferentes domínios do conhecimento profissional do professor - Botelho, M. C.; Rocha, H.

A interdisciplinaridade em contexto de integração da tecnologia: o conhecimento profissional de professores de Matemática e de Físico-Química - Coelho, T; Rocha, H.

A new matheuristic approach for the Multi-Depot Vehicle Routing Problem with Inter-Depot Routes - Ramos, T.R.P.; Gomes, M.I.; Barbosa-Póvoa, A.P.

Novel strategies for global manufacturing systems interoperability - Jardim-Goncalves Ricardo; Grilo Antonio; Popplewell Keith
n/a
n/a

Preface xii Growth of Amorphous and Crystalline Silicon Carbide Amorphous silicon–carbon alloys: a promising but complex and very diversified series of materials I. Solomon 3 Silicon carbide alloys produced by hot wire, hot wire plasma-assisted and plasma - Ferreira, I.; Costa, ME; Pereira, L.; Fortunato, E.; Martins, R.; Ramos, A.R.; Silva, M.F.; Foti, G; Yakimova, R; Syväjarvi, M
n/a
n/a

{Complex internal rearrangement processes triggered by electron transfer to acetic acid} - Limao-Vieira, P.; Meneses, G.; Cunha, T.; Gil, A.; Calhorda, M. J.; Garcia, G.; Da Silva, F. Ferreira ({XXIX INTERNATIONAL CONFERENCE ON PHOTONIC, ELECTRONIC, AND ATOMIC COLLISIONS (ICPEAC2015), PTS 1-12})
n/a
{29th International Conference on Photonic, Electronic, and Atomic Collisions (ICPEAC), Toledo, SPAIN, JUL 22-28, 2015}

{Conversion of Glycerol-rich Product (GRP) into Biopolymers} - Freitas, F.; J Pais; Alves, V. D.; Carvalheira, M.; Costa, N.; Oliveira, R.; Reis, M. A. M. ({CLEAN TECHNOLOGY 2008: BIO ENERGY, RENEWABLES, GREEN BUILDING, SMART GRID, STORAGE, AND WATER})
n/a
{Clean Technology and Sustainable Industries Conference and Trade Show, Boston, MA, JUN 01-05, 2008}

{DEA to bare and water-solvated pyrimidine clusters} - Neustetter, Michael; Aysina, Julia; da Silva, Filipe Ferreira; Denifl, Stephan ({XXIX INTERNATIONAL CONFERENCE ON PHOTONIC, ELECTRONIC, AND ATOMIC COLLISIONS (ICPEAC2015), PTS 1-12})
n/a
{29th International Conference on Photonic, Electronic, and Atomic Collisions (ICPEAC), Toledo, SPAIN, JUL 22-28, 2015}

{Development and implementation of a non-parametric/metabolic model in the process optimisation of PHA production by mixed microbial cultures} - Lopes Dias, Joao Miguel; Lemos, Paulo; Serafim, Luisa; Oehmen, Adrian; Reis, Maria A. M.; Oliveira, Rui ({17TH EUROPEAN SYMPOSIUM ON COMPUTER AIDED PROCESS ENGINEERING})
n/a
{17th European Symposium on Computer Aided Process Engineering (ESCAPE-17), Bucharest, ROMANIA, MAY 27-30, 2007}

{Electron induced fragmentation of sulphur containing biological prototypes: thiaproline and taurine} - Lange, E.; Meneses, G.; Cunha, T.; Krasuska, J.; Kopyra, J.; Garcia, G.; Ferreira da Silva, F.; Limao-Vieira, P. ({XXIX INTERNATIONAL CONFERENCE ON PHOTONIC, ELECTRONIC, AND ATOMIC COLLISIONS (ICPEAC2015), PTS 1-12})
n/a
{29th International Conference on Photonic, Electronic, and Atomic Collisions (ICPEAC), Toledo, SPAIN, JUL 22-28, 2015}

{Electron-transfer studies in potassium collisions with tetrachloromethane} - Regeta, Khrystyna; Cunha, Tiago; da Silva, Filipe Ferreira; Garcia, Gustavo; Limao-Vieira, Paulo ({XXX INTERNATIONAL CONFERENCE ON PHOTONIC, ELECTRONIC, AND ATOMIC COLLISIONS (ICPEAC2017)})
n/a
{30th International Conference on Photonic, Electronic, and Atomic Collisions (ICPEAC), Cairns, AUSTRALIA, JUL 26-AUG 01, 2017}

{Hybrid modular mechanistic/ANN modelling of a wastewater phosphorus removal process} - Peres, J.; Freitas, F.; Reis, M. A. M.; Feyo de Azevedo, S.; Oliveira, R. ({16TH EUROPEAN SYMPOSIUM ON COMPUTER AIDED PROCESS ENGINEERING AND 9TH INTERNATIONAL SYMPOSIUM ON PROCESS SYSTEMS ENGINEERING})
n/a
{Joint Conference Event of the 9th Symposium on Process Systems Engineering (PSE 2006)/16th European Symposium on Computer Aided Process Engineering (ESCAPE-16), Garmisch-Partenkirchen, GERMANY, JUL 09-13, 2006}

{Low-energy electron interactions with chromium hexacarbonyl Cr(CO)(6)} - Khreis, J.; Ameixa, J.; Neustetter, M.; Reitshammer, J.; Ferreira da Silva, F.; Denifl, S. ({XXX INTERNATIONAL CONFERENCE ON PHOTONIC, ELECTRONIC, AND ATOMIC COLLISIONS (ICPEAC2017)})
n/a
{30th International Conference on Photonic, Electronic, and Atomic Collisions (ICPEAC), Cairns, AUSTRALIA, JUL 26-AUG 01, 2017}

{Modeling secondary particle tracks generated by high-energy protons in water} - Blanco, F.; Munoz, A.; Almeida, D.; Ferreira da Silva, F.; Limao-Vieira, P.; Verkhovtsev, A.; Ellis-Gibbings, L.; Krupa, K.; Traore, A.; Garcia, G. ({XXIX INTERNATIONAL CONFERENCE ON PHOTONIC, ELECTRONIC, AND ATOMIC COLLISIONS (ICPEAC2015), PTS 1-12})
n/a
{29th International Conference on Photonic, Electronic, and Atomic Collisions (ICPEAC), Toledo, SPAIN, JUL 22-28, 2015}

{Real-time monitoring of membrane bioreactors with 2D-fluorescence data and statistically based models} - Galinha, C. F.; Carvalho, G.; Portugal, C. A. M.; Guglielmi, G.; Oliveira, R.; Crespo, J. G.; Reis, M. A. M. (WATER SCIENCE AND TECHNOLOGY)
n/a
n/a

{The role of side chains in electron transfer induced fragmentation of amino-acids} - Ferreira da Silva, F.; Rafael, J.; Rebelo, A.; Almeida, D.; Limao-Vieira, P. ({XXVIII INTERNATIONAL CONFERENCE ON PHOTONIC, ELECTRONIC AND ATOMIC COLLISIONS (ICPEAC)})
n/a
{28th International Conference on Photonic, Electronic and Atomic Collisions (ICPEAC), Chinese Acad Sci, Inst Modern Phys, Lanzhou, PEOPLES R CHINA, JUL 24-30, 2013}

Desenvolvimento profissional do professor de matemática através de uma formação em STEAM – Mathematics Teacher Professional Development through STEAM Training - P. Teixeira; Rocha, H.; C. Martins (EIEM 2025)

Multi-depot vehicle routing problem: a comparative study of alternative formulations - Ramos, T.R.P.; Gomes, M.I.; Barbosa-Povoa, A P (International Journal of Logistics Research and Applications)

Patterns of Sexual Risk Behavior, HIV Infection, and Use of Health Services Among Sub-Saharan African Migrants in Portugal. - Dias, S.; Gama, A.; Abrantes, P.; Gomes, M.I.; Fonseca, M; Reigado, V; Simões, D; Carreiras, E; Mora, C; Pinto Ferreira, A; Akpogheneta, O; Martins, MO (The Journal of Sex Research 19)

Palaeoenvironments, stratigraphy and taphonomy of an Upper Triassic vertebrate-bearing unit, Silves Group, central Algarve, southern Portugal - Maciej Ruciński; Ruiz, Lope Ezquerro; Hugo Campos; Mateus,Octávio; Fernandes, Paulo; Vilas-Boas, Margarida; Atfy, Haytham El; Ingmar Werneburg (Lethaia, 2026)
Triassic to Lower Jurassic deposits known as the Silves Group in the Algarve, southern Portugal, have been studied for over 150 years. However, many of this unit’s sedimentological, stratigraphical, and palaeontological aspects remain poorly documented. Here, we present novel observations on sedimentology, stratigraphy, taphonomy, and fauna at the Rocha da Pena site, located in the central part of the Algarve Basin. The investigated sequence is established to correspond to the upper part of the Silves Group. The mudstone, calcrete, and palustrine carbonate facies comprise most of the sequence thickness and are interpreted as having been deposited within coastal alluvial mudflats to palustrine settings under semi-arid and seasonal climates. The overlying siltstone and sandstone facies indicate an environmental shift towards tidally influenced environments, subsequently covered by the latest Triassic to earliest Jurassic volcaniclastics and basaltic lava flows. Furthermore, novel faunal elements, including actinopterygian and unionoid bivalves, are described from mudstone layers. New fossiliferous beds are identified within palustrine facies that yield numerous but poorly preserved materials assigned to cyamodontoid placodonts, hybodont sharks, and actinopterygians. The poor preservation of the remains is attributed to the pedogenetic processes prevalent in the palustrine depositional setting. A distinct faunal composition between the mudstone and palustrine facies is observed. It is preliminarily hypothesized to be likely linked with salinity fluctuations, but sampling bias cannot currently be excluded. The recovered vertebrate fauna aligns most closely with the Carnian and, to a lesser extent, the Norian fossil record. Nonetheless, the precise age of the fossil-bearing levels remains uncertain and can currently be reliably constrained to the upper Carnian–Rhaetian interval. Consequently, this work provides new insights into the palaeoenvironmental evolution of the western Tethys margin during the Late Triassic and highlights the relevance of the Silves Group in reconstructing coastal-continental ecosystem dynamics in southwestern Iberia.Triassic to Lower Jurassic deposits known as the Silves Group in the Algarve, southern Portugal, have been studied for over 150 years. However, many of this unit’s sedimentological, stratigraphical, and palaeontological aspects remain poorly documented. Here, we present novel observations on sedimentology, stratigraphy, taphonomy, and fauna at the Rocha da Pena site, located in the central part of the Algarve Basin. The investigated sequence is established to correspond to the upper part of the Silves Group. The mudstone, calcrete, and palustrine carbonate facies comprise most of the sequence thickness and are interpreted as having been deposited within coastal alluvial mudflats to palustrine settings under semi-arid and seasonal climates. The overlying siltstone and sandstone facies indicate an environmental shift towards tidally influenced environments, subsequently covered by the latest Triassic to earliest Jurassic volcaniclastics and basaltic lava flows. Furthermore, novel faunal elements, including actinopterygian and unionoid bivalves, are described from mudstone layers. New fossiliferous beds are identified within palustrine facies that yield numerous but poorly preserved materials assigned to cyamodontoid placodonts, hybodont sharks, and actinopterygians. The poor preservation of the remains is attributed to the pedogenetic processes prevalent in the palustrine depositional setting. A distinct faunal composition between the mudstone and palustrine facies is observed. It is preliminarily hypothesized to be likely linked with salinity fluctuations, but sampling bias cannot currently be excluded. The recovered vertebrate fauna aligns most closely with the Carnian and, to a lesser extent, the Norian fossil record. Nonetheless, the precise age of the fossil-bearing levels remains uncertain and can currently be reliably constrained to the upper Carnian–Rhaetian interval. Consequently, this work provides new insights into the palaeoenvironmental evolution of the western Tethys margin during the Late Triassic and highlights the relevance of the Silves Group in reconstructing coastal-continental ecosystem dynamics in southwestern Iberia.
doi: 10.18261/let.59.3.3
Keywords: Portugal; sedimentology; taphonomy; Triassic-Jurassic palaeoenvironments; vertebrates

Cork stripping alters the seasonal carbon allocation patterns of Quercus suber in a dry year - Pinto, Clara A.; Costa-e-Silva, Filipe; Correia, Alexandra C.; Graça, José; Zarrouk, Olfa; David, Teresa S.; José C RODRIGUES; Pereira, João S.; Chaves, Maria Manuela; Pinheiro, Carla (Forest Ecology and Management, 2026)
n/a
n/a

Exploring mathematics teachers' knowledge: an analysis based on the KTMT model and the use of different models of graphing calculators - Botelho, M. C.; Rocha, H. (Springer, 2026)

Numerical analysis of the effects of corrosion on the punching shear capacity of reinforced concrete flat slabs with openings - Ramos, Vinícius D'Almeida Rodrigues; Trautwein, Leandro Mouta; Ramos, António Pinho; Liberati, Elyson Andrew Pozo (Structural Concrete, 2026)
n/a
Cited by: 0; All Open Access, Hybrid Gold Open Access

Rethinking Knowledge for Teaching Mathematics with Technology: Tensions, Extensions and Future Agenda - Rocha, H.; Faggiano, E.; Haspekian, M.; Tabach, M.; J. Trgalova; H-G. Weigand (PME 49, 2026)
The integration of digital technology to promote mathematical learning remains challenging for teachers. The continuous difficulty in fully achieving technology’s potential highlights the need to further examine and develop models addressing teachers’ knowledge in relation to technology. In this Research Forum, we analyse existing technology-related knowledge models, exploring similarities and differences. We also consider how these models have been used in research, highlighting tensions driven by emerging technologies, and resulting extensions of the models. Finally, we discuss possible integrations across frameworks and the potential to include dimensions beyond knowledge. This discussion aims to deepen understanding of current models and suggest directions and a research agenda for future development.

Teachers' knowledge in GAI-supported mathematics education - Bernardi, M.L.; Rocha, H. (PME 49, 2026)

Teachers' perceptions of teaching practices, the STEAM approach, and collaborative work - P. Teixeira; Rocha, H.; C. Martins (Perspectives and Trends in Education and Technology, 2026)

Teachers’ knowledge and technology in the teaching of functions: A view from Portugal and Brazil - Viseu, F.; Rocha, H.; Menezes, S. (Journal of Mathematical Behavior, 2026)
Technology integration although highly recommended has proved to be complex. This study aims to characterize the perceptions of secondary mathematics teachers (grades 7th to 12th), from Portugal (Braga region) and Brazil (Campinas region), regarding the teaching of Functions and the use of technology. We also intend to consider the context of the two countries, reflecting on justifications for the differences identified (if any). The study adopts a mixed methodology based on a questionnaire applied to 129 Portuguese teachers in Braga region and 136 Brazilian teachers in Campinas region (quantitative dimension) and on an interview to six Portuguese teachers and six Brazilian teachers (qualitative dimension). The results point to similarities between teachers from Portugal and Brazil, but also to some differences. Technology potential is recognized by teacher from both countries, however teachers from Brazil tend to assume a more traditional use of technology, based on showing and more teacher-centered. This difference can be related to the Portuguese curriculum, valuing a relevant use of technology for more than three decades.

Technological integration and interdisciplinarity: The role of teachers' professional knowledge - Coelho, T; Rocha, H. (Springer, 2026)

“Matilda is Lazy Today”: How Mind Perceptions Trigger Relational Job Crafting With Industrial Robots - Bernadeta Goštautaitė; Irina Liubertė; Trish Reay; Ilona Bučiūnienė; Mantas Danielius Blaževičius; Moniz, António (Group & Organization Management, 2026)
Industrial robots are increasingly integrated into manufacturing workspaces, leading to significant changes in work design and altering workers’ framing of work and technology. Even without anthropomorphic design or autonomous features, employees may treat industrial robots as more than mere tools, attributing human-like qualities to them. Yet, prior research typically considers technology either as a tool or as an occasion for altering work relationships between humans, overlooking how relationships with technology itself are crafted. Drawing on 133 interviews across multiple organizations—including robot users, robot producers, and solution providers, we show that mind perceptions (attributions of agency and experience to industrial robots) catalyze relational job crafting with robots. We identify four co-evolving practices—crafting responsibilities, crafting hierarchies, crafting collaboration, and crafting emotional connection—that help workers regain control and regulate daily stress levels, thereby linking relational crafting to both performance and well-being outcomes. Our study extends relational job crafting theory by theorizing mind perceptions as the trigger of human-robot relationality and shifts attention from agentic/anthropomorphic design of technologies to workers’ perceptions of these technologies as core drivers of human-robot-interaction and technology adoption in organizations.

Towards Rapid Prediction of TNT Blast-Induced Primary and Secondary Human Injuries in Urban Environments - N.H. Shaker; C. Cismasiu; H. B. Rebelo; Cismasiu, I. (Results in Engineering, 2026)
In densely built urban areas, explosive events produce blast waves that interact strongly with surrounding structures, resulting in amplified pressures and highly variable injury patterns. These complex interactions challenge conventional blast models and emphasize the need for improved, rapid injury estimation methods to support effective emergency response and mitigation. To address this need, the present study develops predictive equations for the rapid estimation of TNT blast-induced human injuries in urban environments, with particular emphasis on densely built areas characterized by complex street geometries. These equations were derived through regression analysis of an extensive dataset of simulated blast events with varying charge sizes, placed in three representative urban scenarios characterized by distinct street layouts and topographic conditions. The numerical simulations were performed using validated finite-volume Computational Fluid Dynamics models implemented in the GPU-accelerated commercial software Viper::Blast. The proposed equations allow the delineation of primary and secondary injury zones. Primary injuries are associated with overpressure effects on air-filled organs, while secondary injuries result from debris and projectiles and are directly correlated with predicted damage to masonry elements and glazing. Tertiary and quaternary injuries, which are respectively related to body displacement and impact, burns, inhalation hazards, and psychological effects, are not addressed in the present research. Results show that the urban fabric strongly influences both the extent and the shape of the injury zones. In contrast, terrain topography, provided that slopes remain relatively moderate, has only a minimal effect. Overall, the predictive equations offer a rapid yet reliable tool for quantifying blast-related injuries in urban environments. They support risk assessment, mitigation planning, and emergency response strategies for both accidental and deliberate explosions.
n/a
Keywords: Blast-Induced Human Injuries; Rapid Prediction; Urban Environment; Viper::Blast

Unveiling DIR proteins involved in cork formation: insights from transcriptome analysis and cis-element co-occurrence - de Almeida, João M. G. C. F.; Ricardo, Cândido Pinto; Pinheiro, Carla (Theoretical and Experimental Plant Physiology, 2025)
n/a
n/a

Novel record of placodont remains including a Henodus cranium from the Upper Triassic Silves Group of the Algarve, southern Portugal - Maciej Ruciński; Hugo Campos; Mateus,Octávio; Ingmar Werneburg (Journal of Vertebrate Paleontology, 2025)
n/a
n/a

A new Maastrichtian hyposaurine dyrosaurid (Crocodylomorpha) from Namibe province, Angola - Maréchal, Arthur; Filippo Maria Rotatori; Merella, Marco; Puértolas-Pascual, Eduardo; Cristina Sequero; Pereira, Ricardo; Nsungani, Pedro; Mateus,Octávio (2025)
Dyrosauridae are one of the few clades of large marine vertebrates that survived the Cretaceous/Palaeogene (K–Pg) extinction event. The early diversification of this clade, dated to the Cretaceous, is still poorly understood. We describe a new specimen of Dyrosauridae from the Late Cretaceous of Bentiaba, Angola, represented by a posterior portion of the skull, a left ectopterygoid fragment, and a tooth. Comparative morphological analysis reveals a unique combination of characters distinguishing it from known dyrosaurid taxa but due to the fragmentary nature of the specimen and the absence of key diagnostic features, we assign it to Hyposaurinae indet.. Phylogenetic relationships were tested through maximum parsimony and Bayesian inference, using the SFBD model with time-binning criteria for the K–Pg boundary. Both of our phylogenetic analyses recover this new specimen as Hyposaurinae, which is consistent with our comparative study. Evolutionary rates accelerated during the latest stages of the Cretaceous, although the fossil bias prevents the ability to appreciate their impact on cladogenetic events. We estimated diversification, fossilization, and extinction rates, and we did not find evidence of radiation after the K–Pg in this clade. Biogeographically, this discovery supports hypotheses of longirostrine crocodyliform dispersal in Africa leading to hyposaurine diversification during the Maastrichtian.
n/a

Tripartite binding mode of cohesin-dockerin complexes from Ruminococcus flavefaciens involving naturally truncated dockerins - Marlene Duarte; Carvalho, Ana Luísa; Ferreira, Magda C.; Caires, Beatriz; Romão, Maria João; Prates, José A. M.; Najmudin, Shabir; Bayer, Edward A.; Fontes, Carlos MGA.; Bule, Pedro (2025)
Polysaccharides in plant cell walls serve as a rich carbon and energy source, yet their structural complexity presents a barrier to efficient degradation. To address this, anaerobic microorganisms like R. flavefaciens have developed sophisticated multi-enzyme complexes known as cellulosomes, which enable the efficient breakdown of these recalcitrant polysaccharides. These complexes are assembled through high-affinity interactions between cohesin (Coh) modules in scaffoldin proteins and dockerin (Doc) modules in cellulosomal enzymes. R. flavefaciens FD-1 harbors one of the most intricate cellulosomes described to date, comprising over 200 Doc-containing proteins encoded in its genome. Despite substantial research on this cellulosome, the role of a group of truncated but functional dockerins, known as group-2 Docs, remains unclear. In this study, we present a detailed structural and binding analysis of a Coh-Doc complex involving the cohesin from the cell-anchoring scaffoldin ScaE and a group-2 Doc that bears only one of the two Ca+2-coordinating loops that characterise the canonical Docs. Our findings reveal a novel tripartite binding mechanism, in which the cohesin can simultaneously bind two distinct dockerin units in three alternative conformations. This discovery provides new insights into the modular versatility of the R. flavefaciens cellulosome and sheds light on the mechanisms that enhance its efficiency in polysaccharide degradation.
n/a
Keywords: Carbohydrates; cellulosome; cohesin; dockerin; protein assembly; protein complex; protein structure

An unsupervised tool for biomarker discovery and cancer subtyping applied to glioblastoma - Coletti, Roberta; J. Orestes Cerdeira; Marcos Raydan; Lopes, Marta B. (BioData Mining, 2025)
High-dimensional omics data often contain more variables than observations, which can lead to overfitting and negatively impact the results of classical data analysis methods. To address the issue, supervised variable selection methods are often used, incorporating penalty terms into the model. While effective for selecting task-specific variables, this approach may not preserve the overall dataset structure for multiple downstream analyses. This study aims to evaluate unsupervised variable selection approaches and introduce a novel tool that improves data interpretability while maintaining biological information.
n/a

Challenges and potential in implementing STE(A)M in teachers' practices: a systematic review - P. Teixeira; Rocha, H.; C. Martins (International Journal of Mathematical Education in Science and Technology, 2025)
The potential of STE(A)M has been widely recognised in recent years; however, challenges have also been identified in the implementation of this approach, making it important to deepen research into teachers’ practices. In this study, we conducted a systematic review focused on teaching practices within a STE(A)M approach, to understand what challenges and limitations teachers encounter, as well as the possibilities authors suggest to overcome them. The research question is: What are the challenges and potentialities of implementing the STE(A)M approach in teachers’ practices? This review analysed articles indexed in the Web of Science and Scopus databases over the last eight years, following the PRISMA scheme. The 26 articles examined highlight challenges such as time management, lack of resources and funding, limited guidance, gaps in teacher training, difficulty integrating subject areas, issues implementing new technologies and obstacles imposed by school structures. In light of these, the following proposals were suggested: placing greater emphasis on STE(A)M in initial and continuing teacher education, increasing support from schools and government bodies, encouraging collaborative work between teachers from different areas, adopting innovative strategies and methodologies and offering a clearer conceptualisation of STE(A)M.

ChatGPT e o ensino da Matemática: alguns exemplos para refletir sobre desafios e oportunidades - Rocha, H.; Faggiano, E.; Spagnolo, C. (Educação e Matemática, 2025)

Evidence of large-sized ankylopollexian dinosaurs (Ornithischia: Iguanodontia) in the Upper Jurassic of Portugal - Filippo Maria Rotatori; Fernando Escaso; Bruno Camilo; Filippo Bertozzo; Elisabete Malafaia; Mateus,Octávio; Pedro Mocho; Francisco Ortega; Miguel Moreno-Azanza and (Journal of Systematic Palaeontology, 2025)
The Upper Jurassic beds of the Lusitanian Basin in central Portugal yield diverse dinosaurian fauna, dated to the Kimmeridgian–Tithonian interval. Saurischian dinosaurs are, overall, more abundant than their ornithischian counterparts, in terms of both specimens collected and species recognized. Iguanodontians are so far represented by the styracosternan Draconyx loureiroi, the dryosaurid Eousdryosaurus nanohallucis and the enigmatic dryomorphan Hesperonyx martinhotomasorum. Here we aim to highlight the diversity of this clade in the Late Jurassic of Portugal, presenting evidence for yet another species of ankylopollexian iguanodontian dinosaur, represented by the specimen SHN.JJS.015, which is housed at the Sociedade de História Natural, Torres Vedras. Detailed comparisons rule out attribution to previously known taxa, and phylogenetic analyses that include SHN.JJS.015 indicate early-diverging ankylopollexian affinities for this specimen. As there is no robust diagnosis, we do not erect a new formal species for it at this stage. Nevertheless, this specimen represents a previously unreported taxon that highlights greater diversity than previously estimated among the iguanodontians of the Late Jurassic and highlights the importance of Europe in diversification and dispersal events of this clade. A series of smaller, isolated femora from the same sub-basin as SHN.JJS.015 may represent the same taxon, presenting evidence of thriving communities of ankylopollexians during the Kimmeridgian–Tithonian interval in Portugal.
n/a

Fredholmness of pseudodifferential operators on rearrangement-invariant spaces - Karlovych, Oleksiy (Pseudo-Differential Operators and Related Topics, Extended Abstracts PSORT 2024, 2025)

Generative AI in mathematics education: pre-service teachers’ knowledge and implications for their professional development - Bernardi, M.L.; Capone, R.; Faggiano, E.; Rocha, H. (International Journal of Mathematical Education in Science and Technology, 2025)
Incorporating technologies with Generative Artificial Intelligence (GenAI) into education requires a shift in teaching methodologies. However, little is known about how pre-service teachers perceive the relevance and challenges of this incorporation, particularly in mathematics education. This study investigates pre-service teachers’ interactions with GenAI, addressing the relevance and challenges of integrating it in mathematics teaching and discussing possible implications for their knowledge and professional development. Specifically, it intends to understand: How does the pre-service teachers’ interaction with GenAI during the design and implementation of teaching activities relate to their professional knowledge? And how does this relation impact the relevance they ascribe to GenAI? In this qualitative and interpretative study, involving seven pre-service mathematics teachers, we analyse the interplay between participants’ knowledge and use of a GenAI (in this case, ChatGPT), guided by KTMT – Knowledge for Teaching Mathematics with Technology model. The main conclusions revealed a landscape characterised by promise and challenge, where GenAI can be a valuable educational tool when used to facilitate discussion and promote critical thinking, highlighting the relevance and development of KTMT. The ability to evaluate and reflect on AI-generated responses can promote professional development, preparing pre-service teachers for an increasing presence of technology in educational environments.

Knowledge to teach Mathematics with technology: the Global Model - Rocha, H. (International Journal of Mathematical Education in Science and Technology, 2025)
The teacher’s central role in technology integration and the challenges of that integration emphasise the need for a deeper understanding about the teacher’s knowledge required to teach with technology. Based on previous work and a systematic literature review, we identified three knowledge models often used: TPACK, KTMT and PTK. The goal of this paper is to discuss the similarities and differences between these knowledge models and present a Global Model. This Global Model is not a new model. On the contrary, it is a model developed based on the existing models and intending to integrate in a single model the knowledge domains considered in the different existing models. The Global Model highlights the common domains considered and the common roots for the three models, but it also makes explicit the differences, mostly related to the understanding of the domains or even to the domains considered, and also to the way how the knowledge’s development is conceived.

The oldest definitive docodontan from central East Greenland sheds light on the origin of the clade - Patrocínio, Sofia; Panciroli, Elsa; Filippo Maria Rotatori; Octavio Mateus; Milàn, Jesper; Clemmensen, Lars B.; Crespo, Vicente D. (Papers in Palaeontology, 2025)
ABSTRACT The first mammaliaforms emerged in the Late Triassic, but their exact origins remain unclear due to the scarcity of fossils from this period. One of the earliest diverging mammaliaform groups, the order Docodonta, became unusually ecomorphologically diverse compared with other early mammals, and this may be connected to the possession of complex molar cusp morphology. The specimen described here, found in the Rhætelv Formation of the Kap Stewart Group (Rhaetian–Sinemurian) of central East Greenland, provides novel information on docodontan origins and evolution, as well as key biogeographic insights into early mammal dispersal. Nujalikodon cassiopeiae gen. et sp. nov. is the first mammaliaform found in the Rhætelv Formation, and is likely to be Early Jurassic (Hettangian) in age. Comprising an incomplete dentary with a single preserved molar, it was visualized using micro-computed tomography; the molar bears similarities to the putative early docodontan Delsatia, and docodontan Dobunnodon. Phylogenetic analysis places Nujalikodon cassiopeiae as a basal member of Docodonta or a close sister taxon, making it one of the oldest definitive docodontans and pushing the origin of the group back to at least the Early Jurassic. It provides insights into the development of docodontan dental complexity, a key factor in their ecological diversification during the Middle to Late Jurassic. Its presence in Greenland supports the hypothesis that docodontans originated in the region now comprising Europe and Greenland before dispersing across the rest of Laurasia.
e70022 PALA-10-24-5892-OA.R2
Keywords: Docodonta; mammal; Mesozoic; molar complexity; Rhætelv formation

Pressure coefficient distributions on Hyperbolic Paraboloid membranes by Numerical Fluid-Structure Interaction - RM Ríos; Gamboa-Marrufo, M.; C. Cismasiu; JA Moreno-Herrera (Latin American Journal of Solids and Structures, 2025)

The role of professional knowledge in teachers' responses to technological hiccups in mathematics and physics classrooms - Botelho, M. C.; Coelho, T; Rocha, H. (School Sciences and Mathematics, 2025)

Teachers’ knowledge and technology: the global model - Rocha, H. (CERME, 2025)
The teachers’ central role in technology integration and the challenges of that integration emphasize the need for a deeper understanding about the teachers’ knowledge required to teach with technology. Based on previous work and a systematic literature review, we identified three knowledge models often used: TPACK, KTMT and PTK. The goal of this paper is to discuss the similarities and differences between these knowledge models and present a Global Model. This Global Model is not a new model. On the contrary, it is a model developed based on the existing models and intending to integrate in a single model the knowledge domains considered in the different existing models. The Global Model highlights the common domains considered and the common roots for the three models, but it also makes explicit the differences, mostly related to the understanding of the domains or even to the domains considered, and also to the way how the knowledge’s development is conceived.

Tecnologias emergentes no ensino e aprendizagem da matemática: Que desafios para a investigação em Educação Matemática? - Jacinto, H.; J. Matos; Rocha, H.; Moral-Sánchez, S. (EIEM 2025, 2025)

FE modelling of RC flat slabs with openings under vertical load and cyclic horizontal load - Menichini, Giovanni; Lapi, Massimo; Ramos, Antonio; Orlando, Maurizio (fib Symposium, 2025)
n/a
Cited by: 0

Impact of building model complexity on predicting external explosion consequences - A. Mihali; H. B. Rebelo; Cismaşiu, C.; N.H. Shaker (Engineering Structures, 2025)
Accurate blast models are essential for disaster management and emergency preparedness. Semi-empirical methods, which rely on free-field assumptions, struggle to provide precise data for complex building shapes because they ignore shock wave reflections. This research numerically investigates the effects of an explosion on a large building of complex geometrical configuration using blastFoam, estimating the façade damage and assessing risks to occupants. To evaluate the importance of accurately modelling the building’s geometry, four levels of detail were considered. Additionally, simulations were also performed using the Load Blast Enhanced (LBE) method from LS-DYNA to compare the estimates of this faster semi-empirical approach with those obtained through CFD analyses. The findings reveal that simpler CFD models are adequate for façade analysis and injury assessment around the building but fall short for predicting injury distribution within interior spaces or between buildings. The LBE underestimates both structural damage and human injury levels, while detailed CFD highlights the importance of accounting for interior walls and windows to enhance blast pressure predictions.
n/a
Keywords: Blast propagation; CFD simulation; Complex geometrical configuration; Explosion effects

Numerical analysis of fire-induced effects on load carrying capacity of slab-column connections under unbalanced moments - Randi, Ricardo de Paula; Fanton, Andreia Romero; Trautwein, Leandro Mouta; de Almeida, Luiz Carlos; Ramos, António Pinho (fib Symposium, 2025)
n/a
Cited by: 0

On the behavior of flat slabs with asymmetric openings near columns: A hypothesis based on numerical simulations and design code-based analytical models - de Paula Randi, Ricardo; Marques, Marília Gonçalves; Trautwein, Leandro Mouta; Ramos, António Pinho (Structural Concrete, 2025)
n/a
Cited by: 0

Physiological and Metabolic Responses of Chickpea to Post-Flowering High Temperatures and Limited Water Availability - Pinheiro, Carla; Costa-Camilo, Eduardo; Ferdous, Manzur-E-Mohsina; Barcelos, Carina; Duarte, Isabel; Guerra-Guimarães, Leonor; Roitsch, Thomas (Cold Spring Harbor Laboratory, 2025)
n/a
n/a

Printed Zinc Tin Oxide Memristors for Reservoir Computing - \{Azevedo Martins\}, Raquel; Silva, Carlos; Deuermeier, Jonas; Gianluca Milano; Mateo Rosero-Realpe; Carolina Parreira; Fortunato, Elvira; Martins, Rodrigo; Kiazadeh, Asal; Carlos, Emanuel (Advanced Intelligent Systems, 2025)
In this work, fully patterned zinc tin oxide (ZTO) memristors are introduced using inkjet printing. By targeting a scalable, solution-based fabrication approach, highly stable devices with excellent reproducibility and minimal variability are achieved, using ZTO as the active layer, silver (Ag) as the top electrode, and molybdenum as the bottom electrode. The use of sustainable materials like ZTO enhances scalability and environmental compatibility, paving the way for next-generation, low-power neuromorphic computing. The devices successfully fulfill the fundamental criteria for in materia implementation of physical reservoir computing (PRC), including nonlinearity and fading memory property. The devices are successfully trained for classification tasks with MNIST handwritten dataset, achieving 89.4% accuracy and 86.5% by processing 4-bit and 5-bit input temporal sequences. The integration of printed memristors into hardware-based PRC architecture simplifies training complexity, making them particularly advantageous for energy-efficient, wearable AI systems.
info:eu-repo/grantAgreement/FCT/Concurso para Atribuição do Estatuto e Financiamento de Laboratórios Associados (LA)/LA%2FP%2F0037%2F2020/PT# info:eu-repo/grantAgreement/FCT/Concurso de avaliação no âmbito do Programa Plurianual de Financiamento de Unidades de I&D (2017%2F2018) - Financiamento Programático/UIDP%2F50025%2F2020/PT# info:eu-repo/grantAgreement/FCT/Concurso de avaliação no âmbito do Programa Plurianual de Financiamento de Unidades de I&D (2017%2F2018) - Financiamento Base/UIDB%2F50025%2F2020/PT# info:eu-repo/grantAgreement/FCT/OE/2022.13773.BD/PT# info:eu-repo/grantAgreement/FCT//2021.07840.BD/PT# info:eu-repo/grantAgreement/FCT/CEEC IND4ed/2021.03825.CEECIND%2FCP1657%2FCT0015/PT# info:eu-repo/grantAgreement/FCT/CEEC IND4ed/2021.03386.CEECIND%2FCP1657%2FCT0002/PT# info:eu-repo/grantAgreement/FCT/3599-PPCDT/2022.08132.PTDC/PT# info:eu-repo/grantAgreement/FCT/Projetos de IC&DT Portugal Índia/DRI%2FIndia%2F0430%2F2020/PT# Funding Information: This work was financed by national funds from FCT-Fundação para a Ciência e a Tecnologia, I.P., in the scope of the projects LA/P/0037/2020, UIDP/50025/2020, and UIDB/50025/2020 of the Associate Laboratory Institute of Nanostructures, Nanomodelling and Nanofabrication–i3N. R.A.M. and C.S. thank the Fundação para a Ciência e Tecnologia (FCT) for financial support under the Ph.D. grants (2022.13773.BD and 2021.07840.BD). E.C., A.K., and J.D. acknowledge funding received from FCT via 2021.03825.CEECIND, 2021.03386.CEECIND, and CEECINST/00102/2018, respectively. The authors acknowledge the FCT for funding received with project OPERA via 2022.08132.PTDC and project VOCMemsense via DRI/India/0430/2020. The authors further acknowledge the TERRAMETA project no.10109710. This work also received funding from the HORIZONEIC-2023-PATHFINDERCHALLENGES-01 program, grant agreement no. 101161114 (ELEGANCE). G.M. acknowledges the support of the European Research Council (ERC) under the European Union’s ERC Staring grant (ERC-2024-STG) agreement “MEMBRAIN” no. 101 160 604. Publisher Copyright: © 2025 The Author(s). Advanced Intelligent Systems published by Wiley-VCH GmbH.
Keywords: fully patterned; memristor; physical reservoir computing; printed memristors; solution-based; zto

Project RecycleSlab - Structural Behaviour of Recycled Aggregate Reinforced Concrete Flat Slabs with Drop Panels Under Seismic and Cyclic Actions - António Ramos; Marchão, Carla; Coronelli, Dario; Faria, Duarte; Fiorillo, Fausta; Rosati, Gianpaolo; Halvonik, Jaroslav; de Almeida, João Pacheco; Jorge de Brito; Martinelli, Luca; Lamperti, Marco; Ruiz, Miguel Fernandez; et al. (Lecture Notes in Civil Engineering, 2025)
n/a
Cited by: 0

Punching behavior of slab-column connections with recycled coarse aggregate concrete - Ramos, António Pinho; Marchão, Carla; Marreiros, Rui; Domingues, Manuel; Cardoso, Tainara (fib Symposium, 2025)
n/a
Cited by: 0

Punching Shear Behavior of Full-Scale Flat Slabs Cast From Coarse Recycled Aggregate Concrete - Fecko, Tadeáš; Kormošová, Ľudmila; Ramos, António Pinho; Coronelli, Dario; Ruiz, Miguel Fernández; Robert Vollum; Halvonik, Jaroslav (fib Symposium, 2025)
n/a
Cited by: 0

Punching shear behaviour of full-scale slab-column connections cast from concrete with coarse recycled aggregate - Fecko, Tadeáš; Kormošová, Ľudmila; Ramos, António Pinho; Halvonik, Jaroslav (Engineering Structures, 2025)
n/a
Cited by: 0

A review of punching behavior of slab–column connections with recycled coarse aggregate concrete - António Ramos; Marchão, Carla; Pacheco, João Nuno; Enfedaque, Alejandro; Coronelli, Dario; Faria, Duarte; Jorge de Brito; Ruiz, Miguel Fernández; Marreiros, Rui (Structural Concrete, 2025)
n/a
Cited by: 5

Selenium-doped zeolites as sustainable NIR emitters: a comprehensive photophysical study - Viola, Catarina; Laia, César AT; Vieira Ferreira, L. F.; Folgosa, Filipe; Veiga, João Pedro; Lima, João Carlos; Ruivo, Andreia; Avó, João (Journal of Materials Chemistry C, 2025)
n/a
n/a

Test set-up effect on the punching behaviour of slabcolumn connections: A numerical and theoretical investigation - de Paula Randi, Ricardo; Díaz, Rafael Sanabria; Trautwein, Leandro Mouta; Ramos, António Pinho (fib Symposium, 2025)
n/a
Cited by: 0

Explosion consequences assessment in buildings with complex geometries - Alin Mihali; Hugo B. Rebelo; Corneliu Cismasiu (19th International Symposium on Interaction of the Effects of Munitions with Structures, 2024)

Protecting stable biological nomenclatural systems enables universal communication: A collective international appeal - Jiménez-Mejías, Pedro; Manzano, Saúl; Gowda, Vinita; Krell, Frank-Thorsten; Lin, Mei-Ying; Martín-Bravo, Santiago; Martín-Torrijos, Laura; Nieto Feliner, Gonzalo; Mosyakin, Sergei L; Naczi, Robert F C; Acedo, Carmen; Álvarez, Inés; et al. (2024)
The fundamental value of universal nomenclatural systems in biology is that they enable unambiguous scientific communication. However, the stability of these systems is threatened by recent discussions asking for a fairer nomenclature, raising the possibility of bulk revision processes for “inappropriate” names. It is evident that such proposals come from very deep feelings, but we show how they can irreparably damage the foundation of biological communication and, in turn, the sciences that depend on it. There are four essential consequences of objective codes of nomenclature: universality, stability, neutrality, and transculturality. These codes provide fair and impartial guides to the principles governing biological nomenclature and allow unambiguous universal communication in biology. Accordingly, no subjective proposals should be allowed to undermine them.
n/a

CBMcarb-DB: interface of the three-dimensional landscape of carbohydrate-binding modules - Ribeiro, D. O.; Bonnardel, F.; Palma, A. S.; Carvalho, A. L. M.; Perez, S. (Carbohydrate Chemistry: Chemical and Biological Approaches Volume 46, 2024)
Carbohydrate-binding-modules (CBMs) are discrete auxiliary protein modules with a non-catalytic carbohydrate-binding function and that exhibit a great diversity of binding specificities. CBMcarb-DB is a curated database that classifies the three-dimensional structures of CBM–carbohydrate complexes determined by single-crystal X-ray diffraction methods and solution NMR spectroscopy. We designed the database architecture and the navigation tools to query the database with the Protein Data Bank (PDB), UniProtKB, and GlyTouCan (universal glycan repository) identifiers. Special attention was devoted to describing the bound glycans using simple graphical representation and numerical format for cross-referencing to other glycosciences and functional data databases. CBMcarb-DB provides detailed information on CBMs and their bound oligosaccharides and features their interactions using several open-access applications. We also describe how the curated information provided by CBMcarb-DB can be integrated with AI algorithms of 3D structure prediction, facilitating structure–function studies. Also in this chapter, we discuss the exciting convergence of CBMcarb-DB with the glycan array repository, which serves as a valuable resource for investigating the specific binding interactions between glycans and various biomolecular targets. The interaction of the two fields represents a significant milestone in glycosciences. CBMcarb-DB is freely available at https://cbmdb.glycopedia.eu/ and https://cbmcarb.webhost.fct.unl.pt.
n/a

An alternative hybrid lipid nanosystem combining cytotoxic and magnetic properties as a tool to potentiate antitumor effect of 5-fluorouracil - Azevedo, Afonso; Coelho, Mariana P; Pinho, Jacinta O; Soares, Paula I. P.; Reis, Catarina P; Borges, João P; Gaspar, M Manuela (Pergamon, 2024)
n/a
n/a

Dual-stimuli-responsive poly (vinyl alcohol) nanofibers for localized cancer treatment: Magnetic hyperthermia and drug release studies - Gonçalves, Adriana; Cabrita, Raquel; Matos, Joana; Rodrigues, Inês; Vieira, Tânia; João Paulo Borges; Soares, Paula I. P. (Elsevier, 2024)
n/a
n/a

Electrospun Polycaprolactone Membranes Expanded with Chitosan Granules for Cell Infiltration - Vieira, Tânia; Rebelo, Ana Margarida; João Paulo Borges; Henriques, Célia; Silva, Jorge Carvalho (MDPI, 2024)
n/a
n/a

Family GH157 enzyme exhibits broad linkage tolerance and a dual endo/exo- β -glucanase activity on β-glucans - Caseiro, Catarina; McGregor, Nicholas G.S.; Alves, Victor Diogo; Carvalho, Ana Luísa; Romão, Maria João; Davies, Gideon J.; Fontes, Carlos M. G. A.; Bule, Pedro (2024)
The structural and chemical diversity of β-glucans is reflected on the variety of essential biological roles tackled by these polysaccharides. This natural heterogeneity requires an elaborate assortment of enzymatic mechanisms to assemble, degrade or modify, as well as to extract their full biotechnological potential. Recent metagenomic efforts have provided an unprecedented growth in potential new biocatalysts, most of which remain unconfirmed or uncharacterized. Here we report the first biochemical and structural characterization of two bacterial β-glucanases from the recently created glycoside hydrolase family 157 (LaGH157 and BcGH157) and investigate their molecular basis for substrate hydrolysis. Structural analysis by X-ray crystallography revealed that GH157 enzymes belong to clan GH-A, possessing a (β/α)8-barrel fold catalytic domain, two β-sandwich accessory domains and two conserved catalytic glutamates residues, with relative positions compatible with a retaining mechanism of hydrolysis. Specificity screening and enzyme kinetics suggest that the enzymes prefer mixed-linkage glucans over β-1,3-glucans. Activity screening showed that both enzymes exhibit pH optimum at 6.5 and temperature optimum for LaGH157 and BcGH157 at 25 °C and 48 °C, respectively. Product analysis with HPAEC-PAD and LC-MS revealed that both enzymes are endo-1,3(4)-β-glucanases, capable of cleaving β-1,3 and β-1,4-linked glucoses, when preceded by a β-1,3 linkage. Moreover, BcGH157 needs a minimum of 4 subsites occupied for hydrolysis to occur, while LaGH157 only requires 3 subsites. Additionally, LaGH157 possesses exohydrolytic activity on β-1,3 and branching β-1,6 linkages. This unusual bifunctional endo-1,3(4)/exo-1,3–1,6 activity constitutes an expansion on our understanding of β-glucan deconstruction, with the potential to inspire future applications.
n/a
Keywords: CAZYme; Endo-1,3(4)-β-glucanase; GH157; Glycoside hydrolase; β-Glucans

Characterizing the knowledge mobilized by mathematics teachers: A case study with different technologies - Caracterização do conhecimento mobilizado por professores de matemática: Um estudo de caso com diferentes tecnologias - Botelho, M. C.; Rocha, H. (SIEM 2024, 2024)

Forging interdisciplinary paths: Teachers' professional knowledge on disciplinary articulation - Trilhando caminhos interdisciplinares: Conhecimento profissional dos professores sobre a articulação disciplinar - Coelho, T; Rocha, H. (SIEM 2024, 2024)
The challenges of disciplinary integration in teaching practice, especially in the implementation of tasks that promote interdisciplinary approaches, highlight the importance of teachers' professional knowledge in this process. Using a naturalistic approach, this study aims to characterize the professional knowledge of a physics teacher when adopting an interdisciplinary approach using technology. The results of the research revealed that the teacher mobilizes different types of knowledge, showing a differentiated knowledge of the most appropriate mathematical application to teach a given piece of content, and knowledge of how pedagogical strategies can be aided through different applications using technology.

Hadrosaur-like vascularisation in the dentary of an early diverging iguanodontian dinosaur - Filippo Maria Rotatori; Mattia Quaranta; Filippo Bertozzo; Tom Hübner; Bruno Camilo; Mateus,Octávio; Moreno-Azanza, Miguel (Historical Biology, 2024)
ABSTRACTVirtual palaeontology is a growing field, leading palaeontologists to better understand the microanatomy of many extinct species. The application of techniques such as CT and μCT-scanning allows the researchers to study micro-anatomical features in a non-invasive way and make inferences on the palaeobiology of animals. Dinosaurs have been extensively studied using these techniques, with particular focus on the microanatomy of the cranium, whereas relatively little is known of other cranial elements, such as the lower jaw. Here, we aim to fill this gap, describing the microanatomy of the specimen ML 768, an isolated dentary belonging to a dryosaurid iguanodontian dinosaur from the Upper Jurassic of Lourinhã Fm. The dentary ML 768 was subjected to μCT-scanning, and subsequently the data were segmented in Avizo and rendered in Blender. We identified functional and replacement teeth, recognising remnants of old replacement cycles. Furthermore, we mapped a rich neurovascular network present in the dentary and compared it with reference literature. We found that the high vascularisation is shared with other cerapodan dinosaurs with high tooth replacement rates, although homoeostasis may have also played a role in the development of this condition. Further evidence is needed to appreciate the macroevolutionary significance of these findings.
n/a

Interdisciplinary professional knowledge: divergences and convergences of two models – Conhecimento profissional interdisciplinar: divergências e convergências de dois modelos - Coelho, T; Rocha, H. (Iberian Journal of Information Systems and Technologies, 2024)

Investigating the impact of technology integration on Italian and Portuguese teachers’ perspectives concerning standardized assessment - Giglione, S.; Faggiano, E.; Rocha, H. (MEDA – Mathematics Education at the Digital Age, 2024)

The Late Miocene hippopotamid, Archaeopotamus pantanellii nov. comb., from the Casino Basin (Tuscany, Italy): paleobiogeographic implications - Martino, R.; Rook, L.; O. Mateus; Pandolfi, L. (Historical Biology, 2024)
n/a
Publisher: Taylor & Francis

O conhecimento profissional do professor na mobilização de diferentes representações com diferentes tecnologias - Botelho, M. C.; Rocha, H. (Iberian Journal of Information Systems and Technologies, 2024)

On dilations of Fourier multipliers on weighted Lebesgue spaces - Karlovych, Oleksiy; Shargorodsky, Eugene (Analysis Without Borders. Operator Theory: Advances and Applications, vol 297, 2024)

On the algebras of Wiener-Hopf operators with continuous symbols acting on some Banach function spaces - Karlovych, Oleksiy; Valente, Márcio (Analysis Without Borders. Operator Theory: Advances and Applications, vol 297, 2024)

Policies and implementations for technology use in mathematics education: perspectives from around the world - Sacristán, A.; Faggiano, E.; Santacruz-Rodríguez, M.; Rocha, H. (Handbook of digital resources in mathematics education, 2024)
In this chapter, we examine the role of policies and other factors affecting digital technology (DT) integration in mathematics education. In particular, we develop a cross-national analysis of the impact on DT implementation in four countries: two countries in Europe (Italy and Portugal) and two countries in Latin America (Colombia and Mexico). We analyze the role that policies, political changes, reforms, curricula, educational organization and systems, sociocultural aspects, and teachers’ training, knowledge, and beliefs play toward possible DT implementations. We observe that there is a discourse in policies to promote digital technologies’ use, but in practice the availability and integration of such resources in mathematics classrooms is still scarce. We also note that the efforts done during the pandemic did not change this, promoting general ICT use, rather than DT resources that might enhance mathematics teaching and learning.

Problem solving in a real-life context: an approach during the learning of inequalities - Rocha, H.; Viseu, F.; Matos, S. (European Journal of Science and Mathematics Education, 2024)
This study was conducted while 9th grade students learn to solve inequalities and seeks to understand their approach to solving problems with a real-life context. Specifically, the aim is to understand: (1) What are the main characteristics of the students’ approaches to the proposed problems? (2) What is the impact of the real context on the students’ resolutions? A qualitative and interpretative methodology is adopted, based on case studies, with data collected through documentary collection and audio recording of discussions between a pair of students while solving problems. The main conclusions suggest a trend to approach problems without establishing immediate connections with what was being done in the classroom, with students’ decisions being essentially guided by criteria of simplicity. The real context of the problems seems to have the potential to develop in students a more integrated mathematics, focused on understanding and not so much on the repetition of mechanical and meaning-independent procedures. The students’ familiarization with the context in question is one of the aspects highlighted by this study.

Problem-solving and mathematical competence: a look to the relation during the study of Linear Programming - Rocha, H.; Babo, A. (Thinking Skills and Creativity, 2024)
This study seeks reflection on the approaches of 11th grade students to Linear Programming problems, discussing the approaches taken at different moments of the teaching process. It aims to analyze: How is the students’ mathematical competence characterized in relation to problemsolving; What differences can be identified in the resolutions at different moments of the teaching and learning process. We adopt a qualitative and interpretative methodology, analyzing the approaches of two pairs of students with different mathematical backgrounds. The analysis is guided by P´olya’s stages of solving a problem and aspects of the understanding of mathematical competence. The results show different approaches to the problems depending on the teaching moment and different competences. The mathematical background impacts the students’ success when they implement routine procedures, however it does not seem to determine the students’ competence to reason about a problem.

The role of teachers’ knowledge and the use of different technologies in the classroom - Botelho, M. C.; Rocha, H. (MEDA – Mathematics Education at the Digital Age, 2024)
The potential of technology to enhance the learning of mathematics is widely acknowledged. However, realizing this potential requires teachers to possess the knowledge to effectively integrate it into their teaching practices. This study aims to characterize the mathematics teacher's knowledge when using different technologies in teaching and learning. It also aims to study the existence of relationships between the specific domains of the Knowledge for Teaching Mathematics with Technology – KTMT and the integration of graphing calculator and Excel. The methodology adopted is qualitative with an interpretative approach, using a case study of Mathematics teacher in the 11th grade (16-17 years old) with extensive experience in the use of technology. This study shows that different KTMT knowledge is mobilized, according to the technology chosen and the specific characteristics of each of the technologies used influenced the teacher's pedagogical choices.

Teaching Mathematics with technology: a preliminary version of the Global Knowledge model - Ensinar Matemática com tecnologia: uma versão preliminar do modelo Global do Conhecimento - Rocha, H. (SIEM 2024, 2024)
This study aims to discuss similarities and differences between knowledge models focusing on technology, developing the Global Model. This is not a new model, but rather a contribution to the articulation between different conceptual frameworks. Este estudo visa discutir semelhanças e diferenças entre modelos de conhecimento com foco na tecnologia, desenvolvendo a partir destes o Modelo Global. Este não é um novo modelo, mas antes um contributo para a articulação entre diferentes quadros conceptuais.

An unexpected early-diverging iguanodontian dinosaur (Ornithischia, Ornithopoda) from the Upper Jurassic of Portugal - Filippo Maria Rotatori; Lucrezia Ferrari; Cristina Sequero; Bruno Camilo; Mateus,Octávio; Moreno-Azanza, Miguel (Journal of Vertebrate Paleontology, 2024)
Iguanodontia is a diverse clade of herbivorous ornithischian dinosaurs that were speciose and abundant during the Jurassic and Cretaceous. Although the monophyly of Iguanodontia is well supported, their internal relationships have sparked heated debate due to several phylogenetic paradigm shifts. Late Jurassic basally branching iguanodontians in particular are not well understood in terms of their systematic affinities and evolutionary relevance. Their fossil record in Europe is meager compared with North America, with only a few species currently recognized. Two taxa are currently known from the Upper Jurassic of England, the basally branching styracosternan Cumnoria prestwichii and the putative dryosaurid Callovosaurus leedsi. In the Upper Jurassic of Portugal, the styracosternan Draconyx loureiroi and the dryosaurid Eousdryosaurus nanohallucis are presently the only described basally branching iguanodontians. Here we report a new species of early diverging iguanodontian from the Upper Jurassic Lourinhã Formation of western-central Portugal. The new species is clearly distinguished from all other coeval taxa by an exclusive combination of characters that include a tibia with a cnemial crest that is directed craniolaterally and a fibular condyle that is angled at 90° with respect to the proximal epiphysis, a fibula with symmetrical proximal margins, and a reduced metatarsal I. The phylogenetic relationships of the Lourinhã iguanodontian were explored using maximum parsimony and Bayesian inference. The two analyses recover the Lourinhã iguanodontian as an indeterminate dryomorphan, with more precise affinities precluded due to the current available material. Body size is estimated between 3 and 4 meters for the holotype specimen, adding to the diversity of small ornithopods already recognized in the paleoichnological record of the Lourinhã Formation. http://zoobank.org/urn:lsid:zoobank.org:pub:5F4D52D0-0F0B-4809-8561-BE58C7C97D45
n/a

The use of the TPACK framework on research about teachers’ knowledge to teach with digital technology - Rocha, H. (MEDA – Mathematics Education at the Digital Age, 2024)
The potential of digital technologies for teaching and learning mathematics is widely recognized and teachers’ knowledge is one of the elements impacting their integration. Several authors have intended to characterize the teachers’ knowledge required and developed several models, being TPACK one of these models. In this study, we seek to conduct a systematic review of the research on the integration of digital technologies by mathematics teachers based on the TPACK model. Specifically, we intend to answer the following research questions: (1) What are the main methodological options adopted? (2) How is the framework operationalized/used in the studies? The review was based on a search in the Scopus database and resulted in the identification of 10 relevant documents. The analysis suggests a prevalence of qualitative approaches, but a strong use of questionnaires; and an integration of the model with other frameworks, namely the developmental model of TPACK.

Amber “Alchemy”: Recreating and Investigating Yellow Glass Formulations - Reis Santos, Catarina; Ruivo, Andreia; Carneiro, Ana; Veiga, João Pedro; Palomar, Teresa; Coutinho, Inês (Materials, 2024)
n/a
n/a

The Atlantic jigsaw puzzle and the geoheritage of Angola - Jacobs,Louis L.; Stefan Schröder; Nair de Sousa; Richard Dixon; Edoardo Fiordalisi; Arthur Marechal; Mateus,Octávio; Pedro Claude Nsungani; Michael J. Polcyn; Gustavo do Couto Ramos Pereira; Nathan Rochelle-Bates; Anne S. Schulp; et al. (Geological Society, London, Special Publications, 2024)
The jigsaw-puzzle fit of South America and Africa is an icon of plate tectonics and continental drift. Fieldwork in Angola since 2002 allows the correlation of onshore outcrops and offshore geophysical and well-core data in the context of rift, sag, salt, and post-salt drift phases of the opening of the central South Atlantic. These outcrops, ranging in age from >130 Ma to <71 Ma, record Early Cretaceous outpouring of the Etendeka-Paraná Large Igneous Province (Bero Volcanic Complex) and rifting, followed by continental carbonate and siliciclastic deposition (Tumbalunda Formation) during the sagging of the nascent central South Atlantic basin. By the Aptian, evaporation of sea water resulted in thick salt deposits (Bambata Formation), terminated by sea floor spreading. The Equatorial Atlantic Gateway began opening by the early Late Cretaceous (100 Ma) and allowed flow of currents between the North and South Atlantic, creating environmental conditions that heralded the introduction of marine reptiles. These dramatic outcrops are a unique element of geoheritage because they arguably comprise the most complete terrestrially exposed geological record of the puzzle-like icon of continental drift.
n/a

Characterization of Tableware from Fábrica de Loiça de Sacavém—Linking Analytical and Documental Research - Coutinho, Mathilda L; Veiga, João Pedro; Ruivo, Andreia; da Silva, Teresa Pereira; Bottura-Scardina, Silvia; Lima, Maria Margarida R. A.; Pereira, Carlos; Dias, Ana Carvalho; Dias, Luis; Vandenabeele, Peter; Roseiro, José C. (Minerals, 2024)
Fábrica de Loiça de Sacavém (ca. 1858–1994) was among the first to produce white earthenware in Portugal, becoming one of the country’s leading ceramic manufacturers during the late 19th to early 20th centuries. Research on white earthenware has accompanied the growing interest in post-industrial archaeology but is still poorly explored compared to more ancient ceramic productions. This study focused on the ceramic body, glazes, and colourants of tableware produced by Fábrica de Loiça de Sacavém during the first 50 years of its activity (1859–1910). A multi-analytical approach was selected to investigate the chemical and mineralogical composition of the ceramic body, glaze, and pigments using optical microscopy, variable-pressure scanning electron microscope energy-dispersive X-ray spectroscopy (VP-SEM-EDS), μ-Raman spectroscopy, μ-X-ray Diffraction (μ-XRD), and reflectance spectroscopy (hyperspectral image analysis). The studied tableware was produced with a Ca-poor siliceous–aluminous white earthenware ceramic body covered with transparent alkali lead or lead borosilicate glaze, and most colourants were complex Cr-based pigments. These results are in agreement with the little documental evidence from this period found in the manufacturer’s archives.
n/a

Colours of the Tijomel ceramic manufacture (1941-1992): characterisation of a set of ceramic colourants and glazed tiles from Decormel Materials Catalogue - Coutinho, Mathilda; Pereira, Silvia; Ruivo, Andreia; Bottura-Scardina, Silvia; Veiga, João Pedro; Geraldes, Catarina; Gil, Milene; Shearman, Joana (Conservar Património, 2024)
n/a
n/a

Future-Proof a Mediterranean Soup - Costa-Camilo, Eduardo; Rovisco, Beatriz; Duarte, Isabel; Pinheiro, Carla; Carvalho, Graça P. (Lecture Notes on Multidisciplinary Industrial Engineering, 2024)
n/a
n/a

Solar fuels design: Porous cathodes modeling for electrochemical carbon dioxide reduction in aqueous electrolytes - S. Fernandes, I.; D. Antunes; Martins, R.; Mendes, MJ; Reis-Machado, A. S. (Heliyon, 2024)
n/a
cited By 0

Soup Was an Emotional Trigger - Costa-Camilo, Eduardo; Rovisco, Beatriz; Duarte, Isabel; Pinheiro, Carla; Carvalho, Graça P. (Lecture Notes on Multidisciplinary Industrial Engineering, 2024)
n/a
n/a

Ultra-flexible, high-performing NAN transparent electrodes for bendable optoelectronic applications - Akalin, S.A.; Mateus, T; Ribeiro, G.; Deuermeier, J; Calmeiro, T; Águas, H.; Martins, R.; Vicente, A.T.; Mendes, MJ; Yilmazer Menda, U.D. (Journal of Materials Science: Materials in Electronics, 2024)
n/a
cited By 0

Flowering under stress: phenomics and proteomics approaches to chickpea grain yield and quality. - Pinheiro, Carla; Duarte, Isabel; Guerra-Guimarães, Leonor; Ribeiro, Isa C.; Carvalho, Mª Graça; Planchon, Sébastien; Renaut, Jenny; Roitsch, Thomas (2023)
n/a
n/a
Keywords: breeding programs; phenotyping; proteomics

{Parylene C as a Multipurpose Material for Electronics and Microfluidics} - Coelho, Beatriz J.; Pinto, Joana V.; Jorge Martins; Rovisco, Ana; Barquinha, Pedro; Fortunato, Elvira; Baptista, Pedro V.; Martins, Rodrigo; Igreja, Rui (Polymers, 2023)
Poly(p-xylylene) derivatives, widely known as Parylenes, have been considerably adopted by the scientific community for several applications, ranging from simple passive coatings to active device components. Here, we explore the thermal, structural, and electrical properties of Parylene C, and further present a variety of electronic devices featuring this polymer: transistors, capacitors, and digital microfluidic (DMF) devices. We evaluate transistors produced with Parylene C as a dielectric, substrate, and encapsulation layer, either semitransparent or fully transparent. Such transistors exhibit steep transfer curves and subthreshold slopes of 0.26 V/dec, negligible gate leak currents, and fair mobilities. Furthermore, we characterize MIM (metal–insulator–metal) structures with Parylene C as a dielectric and demonstrate the functionality of the polymer deposited in single and double layers under temperature and AC signal stimuli, mimicking the DMF stimuli. Applying temperature generally leads to a decrease in the capacitance of the dielectric layer, whereas applying an AC signal leads to an increase in said capacitance for double-layered Parylene C only. By applying the two stimuli, the capacitance seems to suffer from a balanced influence of both the separated stimuli. Lastly, we demonstrate that DMF devices with double-layered Parylene C allow for faster droplet motion and enable long nucleic acid amplification reactions.
n/a
Keywords: dielectric; electronic devices; encapsulation; Parylene C; substrate; thermal characterization; XRD characterization

The max-out min-in problem: A tool for data analysis - Jorge Orestes Cerdeira; Maria João Martins; Marcos Raydan (Computers {&}amp$\mathsemicolon$ Operations Research, 2023)
n/a
n/a

Elucidating the concentration-dependent effects of thiocyanate binding to carbonic anhydrase - Silva, José Malanho; Cerofolini, Linda; Carvalho, Ana Luísa; Ravera, Enrico; Fragai, Marco; Parigi, Giacomo; Macedo, Anjos L; Geraldes, Carlos F.G.C.; Luchinat, Claudio (2023)
Many proteins naturally carry metal centers, with a large share of them being in the active sites of several enzymes. Paramagnetic effects are a powerful source of structural information and, therefore, if the native metal is paramagnetic, or it can be functionally substituted with a paramagnetic one, paramagnetic effects can be used to study the metal sites, as well as the overall structure of the protein. One notable example is cobalt(II) substitution for zinc(II) in carbonic anhydrase. In this manuscript we investigate the effects of sodium thiocyanate on the chemical environment of the metal ion of the human carbonic anhydrase II. The electron paramagnetic resonance (EPR) titration of the cobalt(II) protein with thiocyanate shows that the EPR spectrum changes from A-type to C-type on passing from 1:1 to 1:1000-fold ligand excess. This indicates the occurrence of a change in the electronic structure, which may reflect a sizable change in the metal coordination environment in turn caused by a modification of the frozen solvent glass. However, paramagnetic nuclear magnetic resonance (NMR) data indicate that the metal coordination cage remains unperturbed even in 1:1000-fold ligand excess. This result proves that the C-type EPR spectrum observed at large ligand concentration should be ascribed to the low temperature at which EPR measurements are performed, which impacts on the structure of the protein when it is destabilized by a high concentration of a chaotropic agent.
n/a
Keywords: EPR; Human carbonic anhydrase II; NMR; Paramagnetism; Sodium thiocyanate; Structural biology

Injectable Thermoresponsive Microparticle/Hydrogel System with Superparamagnetic Nanoparticles for Drug Release and Magnetic Hyperthermia Applications - Carrelo, Henrique; Escoval, André R; Vieira, Tânia; Jiménez-Rosado, Mercedes; Silva, Jorge Carvalho; Romero, Alberto; Soares, Paula Isabel P; João Paulo Borges (MDPI, 2023)
n/a
n/a

Later prehistoric tin mining in the Ervedosa mine (Vinhais, Portugal): evidence and context - Meunier, Emmanuelle; Dias, Filipa; Fonte, João; Lima, Alexandre; Rodrigues, Alexandra; Bottaini, Carlo; Silva, Rui JC; Veiga, João P; Pereira, Manuel F. C.; Figueiredo, Elin (2023)
This paper presents a comprehensive study of the evidence for ancient tin mining at the Ervedosa mine (Vinhais, Portugal). The geological context of the site indicates a rich cassiterite (SnO2) deposit, which was subject to mining in the twentieth century. Some ancient mining and ore processing stone tools were recovered during the twentieth century mining operations, namely one hammer, one pounder, one flat anvil and five small tools used both as pounders and crushing anvils, evidencing prehistoric mining activities. XRF and SEM–EDS chemical analyses were performed on primary and secondary cassiterite samples from the mining site, demonstrating the abundance and chemical heterogeneity of the tin (Sn) ores. The stone tools can be ascribed to Bronze Age or, at the latest, Early Iron Age (2nd millennium to the first half of 1st millennium BCE) by comparison with similar tools from other Iberian and European archaeological contexts. High-resolution photogrammetric 3D models of the tools are made available in this study. The historical descriptions of the findings and the research made on the technical archives about the mine allowed correlating the tools to mining in a primary context, focused on rich quartz veins in granitic or greisen bedrock, rather than mining in a secondary context. XRF and SEM–EDS analyses performed on the stone material and on surface adherences support their identification as specific types of hard rocks, such as granite, amphibolite and quartzite, and allowed the detection of Sn-rich adherent particles, confirming their use for Sn-material processing. The potential relation between the cassiterite resources and the local later prehistoric (Bronze Age to Early Iron Age) settlement pattern is also discussed. The results raise awareness and provide relevant data about the existence of tin mining in primary contexts during later prehistoric times in the NW Iberian Peninsula.
n/a

Magnetic Nanoparticles for Therapy and Diagnosis in Nanomedicine - Mamani, Javier Bustamante; João Paulo Borges; Rossi, Alexandre Malta; Gamarra, Lionel Fernel (MDPI, 2023)
n/a
n/a

Marine-origin polysaccharides-based free-standing multilayered membranes as sustainable nanoreservoirs for controlled drug delivery - Sousa, Cristiana FV; Monteiro, Luís PG; Rodrigues, João MM; João Borges; João F. Mano (Royal Society of Chemistry, 2023)
n/a
n/a

The structure of a Bacteroides thetaiotaomicron carbohydrate-binding module provides new insight into the recognition of complex pectic polysaccharides by the human microbiome - Trovão, Filipa; Correia, Viviana G.; Lourenço, Frederico M.; Ribeiro, Diana O.; Carvalho, Ana Luísa; Palma, Angelina S.; Pinheiro, Benedita A. (2023)
TheBacteroides thetaiotaomicronhas developed a consortium of enzymes capable of overcoming steric constraints and degrading, in a sequential manner, the complex rhamnogalacturonan II (RG-II) polysaccharide. BT0996 protein acts in the initial stages of the RGII depolymerisation, where its two catalytic modules remove the terminal monosaccharides from RG-II side chains A and B. BT0996 is modular and has three putative carbohydrate-binding modules (CBMs) for which the roles in the RG-II degradation are unknown. Here, we present the characterisation of themoduleat the C-terminal domain, which we designated BT0996C. The high-resolution structure obtained by X-ray crystallography reveals that the protein displays a typical β-sandwich fold with structural similarity to CBMs assigned to families 6 and 35. The distinctive features are: 1) the presence of several charged residues at the BT0996-C surface creating a large, broad positive lysine-rich patch that encompasses the putative binding site; and 2) the absence of the highly conserved binding-site signatures observed in CBMs from families 6 and 35, such as region A tryptophan and region C asparagine. These findings hint at a binding mode of BT0996-C not yet observed in its homologues. In line with this, carbohydrate microarrays and microscale thermophoresis show the ability of BT0996-C to bind α1-4-linked polygalacturonic acid, and that electrostatic interactions are essential for the recognition of the anionic polysaccharide. The results support the hypothesis that BT0996-C may have evolved to potentiate the action of BT0996 catalytic modules on the complex structure of RG-II by binding to the polygalacturonic acid backbone sequence.
n/a
Keywords: Carbohydrate Binding Module; Carbohydrates; Human Gut Microbiota; Rhamnogalacturonan II

Using dicationic ionic liquids to upgrade the cytotoxicity and solubility of poorly water-soluble drugs - Silva, Ana B.P.; Jesus, Ana R.; Agostinho, Daniela A.S.; Esperança, José M S S; Paiva, Alexandre; Duarte, Ana R.C.; Reis, Patrícia M. (2023)
New dicationic ionic liquids (DcILs) based on carboxylic acid-derived, N-acetyl amino acid-derived or bromide anions, and ammonium cations were synthesized and characterized. DcILs were employed as co-solvents to improve the solubility of ibuprofen and ketoprofen belonging to BCS class II. These DcILs demonstrated to be less cytotoxic towards fibroblasts L929 cells and contributed to an augment in the solubility of both drugs when compared with monocationic ionic liquids (McILs). The cytotoxic profile of some of these ILs was established, and when the linker between two ammonium cations was an ether group or a short alkyl chain an IC50 higher than 200 mM for fibroblasts L929 cells was achieved. The anion structure showed to be a key factor in the solubility of both drugs, being the family of carboxylic acid-derived, the one that presented the most significant effect, followed by N-acetyl amino acid-derived and finally bromide. The two dimensional 1H1H– NOESY NMR spectra showed the interaction between the IL and the two oral drugs, responsible for the improvement of their solubility. The lipophilicity (logP) of ibuprofen and ketoprofen reduced in the presence of these new DcILs.
n/a
Keywords: Bioavailability; cytotoxicity; Dicationic ionic liquids; Drug delivery; Solubility

Addressing the congruence and similarity of figures with technology: A cross-national comparison - Faggiano, E.; Sacristán, A.; Rocha, H.; Santacruz-Rodríguez, M. (ICTMT, 2023)

Analyzing teachers’ knowledge based on their approach to the information provided by technology - Rocha, H. (European Journal of Science and Mathematics Education, 2023)
Teachers’ knowledge plays a central role in technology integration. In this study we analyze situations, where there is some divergence between the mathematical results and the information offered by the graphing calculator (lack of mathematical fidelity), putting the focus in the teachers and in their approaches. The goal of this study is to analyze, in the light of knowledge for teaching mathematics with technology (KTMT) model, the teachers’ professional knowledge, assuming the situations of lack of mathematical fidelity as having the potential to reveal some characteristics of their knowledge. Specifically, considering the teaching of functions at 10th grade (age 16), we intend to analyze: (1) What knowledge do the teachers have of technology and of its mathematical fidelity? (2) What can the teachers’ options related to situations of lack of mathematical fidelity tell us about their knowledge in other KTMT domains? The study adopts a qualitative and interpretative approach based on the case studies of two teachers. Data were collected by interviews and class observation, being the analysis guided by the KTMT model. The main result points to the relevance of the mathematics and technology knowledge. However, there is evidence of some difficulties to integrate the information provided by the technology with the mathematics, and also of some interference of the teaching and learning and technology knowledge, and specifically of the knowledge related to the students. This suggests that the analysis of the teachers’ actions in relation to situations of lack of mathematical fidelity, can be useful to characterize their KTMT.

As conexões matemáticas na resolução de problemas - Ferreira, G.; Rocha, H.; A. Rodrigues (Atas do EIEM 2023 - Encontro em Investigação em Educação Matemática, 2023)

Biocomposite Macrospheres Based on Strontium-Bioactive Glass for Application as Bone Fillers - de Oliveira, Ivone Regina; dos Santos Gonçalves, Isabela; Wallace dos Santos, Kennedy; Lança, Maria Carmo; Vieira, Tânia; Silva, Jorge Carvalho; Cengiz, Ibrahim Fatih; Reis, Rui Luís; Oliveira, Joaquim Miguel; Miranda Ribeiro Borges, João Paulo (ACS Materials Au, 2023)
Traditional bioactive glass powders are typically composed of irregular particles that can be packed into dense configurations presenting low interconnectivity, which can limit bone ingrowth. The use of novel biocomposite sphere formulations comprising bioactive factors as bone fillers are most advantageous, as it simultaneously allows for packing the particles in a 3-dimensional manner to achieve an adequate interconnected porosity, enhanced biological performance, and ultimately a superior new bone formation. In this work, we develop and characterize novel biocomposite macrospheres of Sr-bioactive glass using sodium alginate, polylactic acid (PLA), and chitosan (CH) as encapsulating materials for finding applications as bone fillers. The biocomposite macrospheres that were obtained using PLA have a larger size distribution and higher porosity and an interconnectivity of 99.7%. Loose apatite particles were observed on the surface of macrospheres prepared with alginate and CH by means of soaking into a simulated body fluid (SBF) for 7 days. A dense apatite layer was formed on the biocomposite macrospheres' surface produced with PLA, which served to protect PLA from degradation. In vitro investigations demonstrated that biocomposite macrospheres had minimal cytotoxic effects on a human osteosarcoma cell line (SaOS-2 cells). However, the accelerated degradation of PLA due to the degradation of bioactive glass may account for the observed decrease in SaOS-2 cells viability. Among the biocomposite macrospheres, those composed of PLA exhibited the most promising characteristics for their potential use as fillers in bone tissue repair applications.
n/a
Keywords: Bioactive glass; bone defects; encapsulation; macrospheres; strontium

Collective Voice and Organizing in Digital Labour Platforms in Portugal - Nuno Boavida; Roque, Isabel; António B. Moniz (Journal of Labor and Society, 2023)

Conhecimento profissional do professor: a influência das perturbações tecnológicas no ensino de Matemática e Física - Teacher's professional knowledge: The influence of technological disruptions in the teaching of Mathematics and Physics - Coelho, T; Botelho, M. C.; Rocha, H. (Atas do XXXIII SIEM – Seminário de Investigação em Educação Matemática, 2023)

Evaluating and comparing geochemical sampling protocols in dinosaur eggshells: refining Cretaceous ecosystem research - Coimbra, Rute; Moreno-Azanza, Miguel; Ezquerro, Lope; Nuñez-Lahuerta, Carmen; José Manuel Gasca; Adrian Immenhauser; Mateus,Octávio; Fernando Rocha (Cretaceous Research, 2023)
The geochemical signatures of dinosaur eggshells represent well-established proxies in paleoenvironmental and paleobiological research. The variable sampling procedures reported in the literature, however, deserve attention. In order to evaluate the impact of different sampling methodologies on carbon and oxygen isotope and elemental concentrations, grinding was contrasted with drilling to extract powder samples from eggshell fragments collected at several locations. Eggshell data were further contrasted with surface materials, encasing matrix and compared with independent proxies using petrographic and elemental techniques. Iron and manganese elemental concentrations revealed an enrichment sequence depending on the sampling strategy for the same eggshell fragment. This pattern can be mistaken for a variable state of preservation. In contrast, carbon and oxygen isotope values exhibited only subtle differences and lacked clear trends. This suggests that isotope data are less susceptible to different methodological approaches. It is shown that drilling offers a wider range of possibilities compared to grinding (e.g., faster and less destructive). Additionally, drilled powder samples can confidently be used for elemental and isotope analysis, excluding contamination, thus providing a more accurate set of proxy data from eggshell archives.
n/a
Keywords: diagenesis; dinosaur eggshells; geochemistry; sampling protocol

Experimental Research and Development on Blast Resistant Structures - Gomes, G.; Rebelo, H.; Lúcio, V.; C. Cismasiu; Mingote, J. (Advances on Testing and Experimentation in Civil Engineering, Springer Tracts in Civil Engineering, 2023)

A fluência representacional num contexto de uso de tecnologia em Matemática e Física e Química - Coelho, T; M. Botelho; Rocha, H. (INCTE, 2023)

Fluência representacional: a Matemática na resolução de problemas de Física - Botelho, M. C.; Coelho, T; Rocha, H. (Atas do EIEM 2023 – Encontro em Investigação em Educação Matemática, 2023)

Functional morphology of the skull of Henodus chelyops (Placodontia) - Werneburg, I; Pommery, Y; Ruciński, M; Kästle, B; Cohen, GJ; Natchev, N; O. Mateus; Ferreira, GD (International Congress of Vertebrate Morphology Cairns - QLD - Australia 28 July - 1 August 2023. The Anatomical Record, 2023)
n/a
n/a

Functional Thinking: A Study with 10th-Grade Students - Martins, R.; Viseu, F.; Rocha, H. (Education Sciences, 2023)
This study aims to understand the functional thinking of 10th-grade students while studying functions. Specifically, we intend to answer the following research questions: what are the functional thinking processes used by 10th-grade students when studying functions? What difficulties do students present while learning functions? In view of the nature of this research objective, we adopted a qualitative and interpretative approach. In order to answer these questions, data were collected from the written records produced by the students while solving the proposed tasks, from records of the oral interactions during discussions and from a questionnaire. The results show that functional thinking processes were implicit in the resolution of the tasks proposed to the students. The students expressed an understanding of how the variables were related, presenting evidence of their functional thinking while working on the new concepts represented by the functions addressed in the proposed tasks. Some students expressed difficulties in interpreting the different types of representations associated with the functions, in retaining the necessary information from a graphical representation that would help them to draw conclusions and establish correspondences, in explaining functional relationships, and in interpreting the information provided by algebraic expressions. These difficulties can reduce the recognition of the relationships between variables and their behavior in the different representations, becoming an obstacle to learning for some students.

A generalised distributed-order Maxwell model - Ferrás, L.; M. L. Morgado; Magda Rebelo (Mathematical Methods in the Applied Sciences, 2023)
n/a
n/a

How the use of different technologies mobilises different domains of professional knowledge - Botelho, M. C.; Coelho, T; Rocha, H. (Cerme 13, 2023)

The impact of teachers' knowledge on the connection between technology supported exploration and mathematical proof - Rocha, H. (European Journal of Science and Mathematics Education, 2023)
Technology is recognized for its potential to implement exploration tasks. The ease and speed with which it becomes possible to observe many cases of a situation, allows the development of conjectures and brings conviction about their veracity. Mathematical proof, assumed as the essence of Mathematics, tends to appear to the students as something dispensable. Based on KTMT – Knowledge for Teaching Mathematics with Technology model, this study intends to understand the impact of the teachers’ knowledge on mathematical proof in a context of technology integration. The study adopts a qualitative and interpretative methodology, based on case study, analyzing the practice of one teacher. The conclusions emphasize the relevance of the teacher’s MTK – Mathematics and Technology Knowledge, and TLTK – Teaching and Learning and Technology Knowledge. The teacher's MTK guides her decisions, leading her to focus on helping students understand the meaning of conjecture and proof, valuing, at the same time, the relevance of algebraic manipulations. However, the teacher’s TLTK guides her practice, where the knowledge about the students is determinant. The study provides evidence about the difficulty of articulating proof and technology, but it also clarifies the relevance of this articulation and of how the teacher’s KTMT can impact the teacher’s decisions.

Impacto do uso de diferentes representações sobre a aprendizagem de funções - Rocha, H. (Educação e Matemática, 2023)

Models on teachers’ knowledge to teach with digital technology: a systematic review - Rocha, H. (Cerme 13, 2023)

Power generation by unhealthy photovoltaic modules - R. Raimundo; Coelho, A; Martins, R.; I. Catarino (CIGRE Science and Engineering, 2023)

Review of Dracopelta Zbyszewskii, an Ankylosaur from the Upper Jurassic of Portugal - Russo, J.; O. Mateus (Anatomical Record, 2023)
n/a
n/a

Revisiting the classical small mammal assemblage from the Eocene site of Silveirinha: a fresh look at old collections - Crespo, Vicente D.; Sequero López, Cristina; Rios, Maria; Estraviz López, Darío; Gamonal, Arturo; Roberta Martino; Riccetto, Marc; Callapez, Pedro; Legoinha, Paulo; Mateus,Octávio (XI Congresso Nacional de Geologia: Geociências e Desafios globaisAt: Universidade de CoimbraVolume: Livro de Resumos, págs 85-86, 2023)
O sítio de Silveirinha é uma das localidades de mamíferos mais conhecidas da Paleontologia do Cenozoico de Portugal e da Europa em geral. Graças à sua rica e diversificada associação de mamíferos, com mais de 30 taxa, foi posicionado no Eocénico inferior (início do Ypresiano, MP7, ca. 55,8 M.a.), sendo o local mais antigo da Europa desta Época, devido à presença única de taxa típicos do Paleocénico superior, juntamente com outras espécies já características do Eocénico inferior. Este estudo irá rever o material de pequenos mamíferos deste sítio, conservado na coleção clássica da Universidade Nova de Lisboa, a fim de fazer uma actualização taxonómica à luz das publicações mais recentes.
n/a

Electron Beam Irradiation on the Production of a Si- and Zr-Based Hybrid Material: A Study by FTIR and WDXRF - Rodrigues, Alexandra P.; Pedro M.P. Santos; Veiga, João Pedro; Casimiro, Maria Helena; Ferreira, Luís M. (Materials, 2023)
Sol-gel production of hybrid materials has, to some extent, revolutionised materials’ engineering and the way science and technology perceive the creation of new materials. Despite that, the method presents some limitations that are circumvented by radiation processing. Electron beam irradiation was used to promote synthesis of hybrid structures while using silanol-terminated PDMS, TEOS and TPOZ as precursors. Evaluation of the method’s performance was executed by gel fraction determination, WDXRF and FTIR-ATR. Results showed that, although there is some pre-irradiation reactivity between precursors, radiolysis induces scission on multiple sites of precursor’s structures, which induces hybrid network formation to a greater extent. Characterisation allowed determining electron beam irradiation to be effective in the creation of Si–O–Zr bonds, resulting in the production of a Class II hybrid material.
n/a

Hierarchical self-assembly of a reflectin-derived peptide - Dias, Ana Margarida Gonçalves Carvalho; Moreira, Inês Pimentel; Lychko, Iana; Lopes Soares, Cátia; Nurrito, Arianna; Moura Barbosa, Arménio Jorge; Lutz-Bueno, Viviane; Mezzenga, Raffaele; Carvalho, Ana Luísa; Pina, Ana Sofia; Roque, Ana Cecília Afonso (Frontiers in Chemistry, 2023)
Reflectins are a family of intrinsically disordered proteins involved in cephalopod camouflage, making them an interesting source for bioinspired optical materials. Understanding reflectin assembly into higher-order structures by standard biophysical methods enables the rational design of new materials, but it is difficult due to their low solubility. To address this challenge, we aim to understand the molecular self-assembly mechanism of reflectin’s basic unit—the protopeptide sequence YMDMSGYQ—as a means to understand reflectin’s assembly phenomena. Protopeptide self-assembly was triggered by different environmental cues, yielding supramolecular hydrogels, and characterized by experimental and theoretical methods. Protopeptide films were also prepared to assess optical properties. Our results support the hypothesis for the protopeptide aggregation model at an atomistic level, led by hydrophilic and hydrophobic interactions mediated by tyrosine residues. Protopeptide-derived films were optically active, presenting diffuse reflectance in the visible region of the light spectrum. Hence, these results contribute to a better understanding of the protopeptide structural assembly, crucial for the design of peptide- and reflectin-based functional materials.
n/a

Nonlinear analysis of flat slab-column connections to optimize the use of HPFRC under monotonic vertical loading - Díaz, Rafael Sanabria; Isufi, Brisid; Trautwein, Leandro Mouta; Ramos, António Pinho (Structural Concrete, 2023)
n/a
Cited by: 1

On non-uniform plastic torsion of steel I-section cantilevers - Rodrigo Gonçalves; Henriques, David; Armando Antão; Manuel Ritto-Corrêa (Thin-Walled Structures, 2023)
This paper aims at contributing towards a better understanding of the non-uniform elastoplastic torsion mechanism of I-section beams. The particular case of cantilevers subjected to an end torque is analysed, which constitutes a simple yet interesting problem, since the maximum torque is very close to the so-called Merchant upper bound (MUB), with added independent maximum bishear and Saint-Venant torques. Consequently, it turns out that the maximum torque can be significantly higher than that for uniform plastic torsion. Besides the MUB, several solutions are presented and compared, namely (i) a stress resultant-based solution stemming from the warping beam theory differential equilibrium equation and (ii) solutions obtained with several beam finite elements that allow for a coarse/refined description of warping. It is found that all models are in very close agreement in terms of maximum torque (including the MUB) and stress resultants. However, the beam finite elements that allow for bishear, even with a simplified warping function, are further capable of reproducing quite accurately the stress field, as a comparison with a 3D solid finite element solution shows. Although the paper is primarily concerned with the small displacement case, the influence of considering finite rotations is also addressed.
n/a
Keywords: Elastoplastic torsion; Merchant upper bound; Non-uniform torsion; Steel I-sections

Parylene-Sealed Perovskite Nanocrystals Down-Shifting Layer for Luminescent Spectral Matching in Thin Film Photovoltaics - Pinheiro, A.; Ruivo, A.; Rocha, J.; Ferro, M.; Pinto, JV; Deuermeier, J; Mateus, T; Santa, A.; Mendes, MJ; Martins, R.; Gago, S.; Laia, C A T; et al. (Nanomaterials, 2023)
n/a
cited By 0

PROBABILIDADE DE ROTURA DE TALUDES DE ESCAVAÇÃO DIMENSIONADOS DE ACORDO COM O EUROCÓDIGO 7. ESTUDO EXPLORATÓRIO - Flávio Rogério; Nuno M. C. Guerra, Armando N. Antão; Matos Fernandes, Manuel (2023)
n/a
n/a

Rise of a dinasty: macroevolutionary and biogeographic patterns of iguanodontian dinosaurs across the Jurassic–Cretaceous transition - Rotatori, FM; Chiarenza, A.A.; Moreno-Azanza, M.; O. Mateus (EAVP Annual Conference of the European Association of Vertebrate Palaeontologists, 2023)
n/a
n/a

SEISMIC BEHAVIOR OF SLAB–COLUMN CONNECTIONS USING HIGH PERFORMANCE FIBER REINFORCED CONCRETES - António Ramos; Isufi, Brisid; Marreiros, Rui (American Concrete Institute, ACI Special Publication, 2023)
n/a
Cited by: 0

Seismic Performance of Reinforced Concrete Buildings with Joist and Wide-Beam Floors during the 26 November 2019 Albania Earthquake - Baballëku, Markel; Isufi, Brisid; Ramos, António Pinho (Buildings, 2023)
n/a
Cited by: 0; All Open Access, Gold Open Access

Seismic Performance of Strengthened Slab-Column Connections in a Full-Scale Test - Ramos, António Pinho; Isufi, Brisid; Marreiros, Rui; Coronelli, Dario; Netti, Teresa; Lamperti Tornaghi, Marco; Tsionis, Georgios; Muttoni, Aurelio (Journal of Earthquake Engineering, 2023)
n/a
Cited by: 0; All Open Access, Green Open Access, Hybrid Gold Open Access

Structural Characterization of Neisseria gonorrhoeae Bacterial Peroxidase—Insights into the Catalytic Cycle of Bacterial Peroxidases - Nóbrega, Cláudia S.; Carvalho, Ana Luísa; Romão, Maria João; Pauleta, Sofia R (International Journal of Molecular Sciences, 2023)
Neisseria gonorrhoeae is an obligate human pathogenic bacterium responsible for gonorrhea, a sexually transmitted disease. The bacterial peroxidase, an enzyme present in the periplasm of this bacterium, detoxifies the cells against hydrogen peroxide and constitutes one of the primary defenses against exogenous and endogenous oxidative stress in this organism. The 38 kDa heterologously produced bacterial peroxidase was crystallized in the mixed-valence state, the active state, at pH 6.0, and the crystals were soaked with azide, producing the first azide-inhibited structure of this family of enzymes. The enzyme binds exogenous ligands such as cyanide and azide, which also inhibit the catalytic activity by coordinating the P heme iron, the active site, and competing with its substrate, hydrogen peroxide. The inhibition constants were estimated to be 0.4 ± 0.1 µM and 41 ± 5 mM for cyanide and azide, respectively. Imidazole also binds and inhibits the enzyme in a more complex mechanism by binding to P and E hemes, which changes the reduction potential of the latest heme. Based on the structures now reported, the catalytic cycle of bacterial peroxidases is revisited. The inhibition studies and the crystal structure of the inhibited enzyme comprise the first platform to search and develop inhibitors that target this enzyme as a possible new strategy against N. gonorrhoeae.
n/a

Structure-function studies can improve binding affinity of cohesin-dockerin interactions for multi-protein assemblies - Marlene Duarte; Alves, Victor D.; Correia, Márcia; Caseiro, Catarina; Ferreira, Luís M A; Romão, Maria João; Carvalho, Ana Luísa; Najmudin, Shabir; Bayer, Edward A.; Fontes, Carlos M. G. A.; Bule, Pedro (International Journal of Biological Macromolecules, 2023)
The cellulosome is an elaborate multi-enzyme structure secreted by many anaerobic microorganisms for the efficient degradation of lignocellulosic substrates. It is composed of multiple catalytic and non-catalytic components that are assembled through high-affinity protein-protein interactions between the enzyme-borne dockerin (Doc) modules and the repeated cohesin (Coh) modules present in primary scaffoldins. In some cellulosomes, primary scaffoldins can interact with adaptor and cell-anchoring scaffoldins to create structures of increasing complexity. The cellulosomal system of the ruminal bacterium, Ruminococcus flavefaciens, is one of the most intricate described to date. An unprecedent number of different Doc specificities results in an elaborate architecture, assembled exclusively through single-binding-mode type-III Coh-Doc interactions. However, a set of type-III Docs exhibits certain features associated with the classic dual-binding mode Coh-Doc interaction. Here, the structure of the adaptor scaffoldin-borne ScaH Doc in complex with the Coh from anchoring scaffoldin ScaE is described. This complex, unlike previously described type-III interactions in R. flavefaciens, was found to interact in a dual-binding mode. The key residues determining Coh recognition were also identified. This information was used to perform structure-informed protein engineering to change the electrostatic profile of the binding surface and to improve the affinity between the two modules. The results show that the nature of the residues in the ligand-binding surface plays a major role in Coh recognition and that Coh-Doc affinity can be manipulated through rational design, a key feature for the creation of designer cellulosomes or other affinity-based technologies using tailored Coh-Doc interactions.
n/a
Keywords: Biomass degradation; Carbohydrates; cellulosome; cohesin; dockerin; protein complex

Sub-Bandgap Sensitization of Perovskite Semiconductors via Colloidal Quantum Dots Incorporation - Ribeiro, G.; Ferreira, G.; Menda, U.D.; Alexandre, M.; Brites, M. J.; Barreiros, M.A.; Jana, S.; Águas, H.; Martins, R.; Fernandes, P.A.; Salomé, P.; Mendes, MJ (Nanomaterials, 2023)
n/a
cited By 0

Thermal-Carrier-Escape Mitigation in a Quantum-Dot-In-Perovskite Intermediate Band Solar Cell via Bandgap Engineering - Menda, U.D.; Ribeiro, G.; Deuermeier, J; López, E.; Nunes, D.; Jana, S.; Artacho, I; Martins, R.; Mora-Seró, I.; Mendes, MJ; Ramiro, I. (ACS Photonics, 2023)
n/a
cited By 0

{Parylene-Sealed Perovskite Nanocrystals Down-Shifting Layer for Luminescent Spectral Matching in Thin Film Photovoltaics} - Pinheiro, Ana; Ruivo, Andreia; Ferro, Marta; Pinto, Joana Vaz; Deuermeier, Jonas; Mateus, Tiago; Santa, Ana; Mendes, Manuel J; Martins, Rodrigo; Gago, Sandra; Laia, C A T; Hugo, Á (2023)
n/a
n/a

EPPN2020/FLOWERINGUNDERSTRESS - sensor and deep physiological phenotyping of terminal drought and heat-effects on chickpea flowering, seed yield and quality - Pinheiro, Carla; Guerra-Guimarães, Leonor; Melo, José; Duarte, Isabel; Roitsch, Thomas (2022)
n/a
n/a
Keywords: chickpea flowering; heat-effects; seed yield

{Sputtering Deposition of TiO2 Thin Film Coatings for Fiber Optic Sensors} - Silva, Daniela; Monteiro, Catarina S.; Silva, Susana O.; Frazão, Orlando; Pinto, Joana V.; Raposo, Maria; Ribeiro, Paulo A; Sério, Susana (Photonics, 2022)
Thin films of titanium dioxide (TiO2) and titanium (Ti) were deposited onto glass and optical fiber supports through DC magnetron sputtering, and their transmission was characterized with regard to their use in optical fiber-based sensors. Deposition parameters such as oxygen partial pressure, working pressure, and sputtering power were optimized to attain films with a high reflectance. The films deposited on glass supports were characterized by UV-Vis spectroscopy, X-ray diffraction (XRD), and scanning electron microscopy (SEM). Regarding the deposition parameters, all three parameters were tested simultaneously, changing the working pressure, the sputtering power, and the oxygen percentage. It was possible to conclude that a lower working pressure and higher applied power lead to films with a higher reflectance. Through the analysis of the as-sputtered thin films using X-ray diffraction, the deposition of both Ti and TiO2 films was confirmed. To study the applicability of TiO2 and Ti in fiber sensing, several thin films were deposited in single mode fibers (SMFs) using the sputtering conditions that revealed the most promising results in the glass supports. The sputtered TiO2 and Ti thin films were used as mirrors to increase the visibility of a low-finesse Fabry–Perot cavity and the possible sensing applications were studied.
n/a

{Microwave-Assisted Synthesis of Zn2SnO4 Nanostructures for Photodegradation of Rhodamine B under UV and Sunlight} - Rovisco, Ana; Morais, Maria; Branquinho, Rita; Fortunato, Elvira; Martins, Rodrigo; Barquinha, Pedro (Nanomaterials, 2022)
The contamination of water resources by pollutants resulting from human activities represents a major concern nowadays. One promising alternative to solve this problem is the photocatalytic process, which has demonstrated very promising and efficient results. Oxide nanostructures are interesting alternatives for these applications since they present wide band gaps and high surface areas. Among the photocatalytic oxide nanostructures, zinc tin oxide (ZTO) presents itself as an eco-friendly alternative since its composition includes abundant and non-toxic zinc and tin, instead of critical elements. Moreover, ZTO nanostructures have a multiplicity of structures and morphologies possible to be obtained through low-cost solution-based syntheses. In this context, the current work presents an optimization of ZTO nanostructures (polyhedrons, nanoplates, and nanoparticles) obtained by microwave irradiation-assisted hydrothermal synthesis, toward photocatalytic applications. The nanostructures' photocatalytic activity in the degradation of rhodamine B under both ultraviolet (UV) irradiation and natural sunlight was evaluated. Among the various morphologies, ZTO nanoparticles revealed the best performance, with degradation > 90% being achieved in 60 min under UV irradiation and in 90 min under natural sunlight. The eco-friendly production process and the demonstrated ability of these nanostructures to be used in various water decontamination processes reinforces their sustainability and the role they can play in a circular economy.
n/a
Keywords: hydrothermal synthesis; microwave-assisted; nanoparticles; nanoplates; Photocatalysis; polyhedrons; rhodamine b; zn 2 sno 4; zto

Laser excitation of the 1s-hyperfine transition in muonic hydrogen - P Amaro; A. Adamczak; M. Abdou Ahmed; L. Affolter; Amaro, F D; P. Carvalho; T. L. Chen; Fernandes, L M P; Ferro, M.; D. Goeldi; Graf, T; M Guerra; et al. (SciPost Physics, 2022)
The CREMA collaboration is pursuing a measurement of the ground-state hyperfine splitting (HFS) in muonic hydrogen (μp) with 1 ppm accuracy by means of pulsed laser spectroscopy to determine the two-photon-exchange contribution with 2×10-4 relative accuracy. In the proposed experiment, the μp atom undergoes a laser excitation from the singlet hyperfine state to the triplet hyperfine state, then is quenched back to the singlet state by an inelastic collision with a H2 molecule. The resulting increase of kinetic energy after the collisional deexcitation is used as a signature of a successful laser transition between hyperfine states. In this paper, we calculate the combined probability that a μp atom initially in the singlet hyperfine state undergoes a laser excitation to the triplet state followed by a collisional-induced deexcitation back to the singlet state. This combined probability has been computed using the optical Bloch equations including the inelastic and elastic collisions. Omitting the decoherence effects caused by the laser bandwidth and collisions would overestimate the transition probability by more than a factor of two in the experimental conditions. Moreover, we also account for Doppler effects and provide the matrix element, the saturation fluence, the elastic and inelastic collision rates for the singlet and triplet states, and the resonance linewidth. This calculation thus quantifies one of the key unknowns of the HFS experiment, leading to a precise definition of the requirements for the laser system and to an optimization of the hydrogen gas target where μp is formed and the laser spectroscopy will occur.
n/a

Análise Comparativa entre Modelos Constitutivos para a Simulação de Elementos Estruturais de Betão Armado sujeitos a Cargas de Explosão - Hugo Rebelo; Corneliu Cismasiu (PROTEDES2022, 2022)

Development of Magnetic Nanofibrous Membranes for Localized Solid Cancer Treatment - Gonçalves, Adriana; Matos, Joana; Cabrita, Raquel; Rodrigues, Inês; João Paulo Borges; Soares, Paula I. P. (MDPI, 2022)
n/a
n/a

Electrospun Polycaprolactone Fibers Doped with 1-Ethyl-3-methylimidazolium bis (trifluoromethylsulfonyl) imide and Poly (3, 4-ethylenedioxythiophene) for Neural Tissue Engineering - Roberto, Nuno; Dias, Joana; Piaia, Lya; Borges, João P; Henriques, Célia R (MDPI, 2022)
n/a
n/a

ELECTROSPUN SCAFFOLDS WITH EXPANDED PORES TO SUPPORT CELLULAR INFILTRATION FOR SKIN REGENERATION - Vieira, Tania; Rebelo, Ana Margarida; Borges, Joao Paulo; Henriques, Celia; Silva, Jorge Carvalho (MARY ANN LIEBERT, INC 140 HUGUENOT STREET, 3RD FL, NEW ROCHELLE, NY 10801 USA, 2022)
n/a
n/a

Reappraisal and new material of the holotype of Draconyx loureiroi (Ornithischia: Iguanodontia) provide insights on the tempo and modo of evolution of thumb-spiked dinosaurs - Filippo Maria Rotatori; Moreno-Azanza, Miguel; Mateus,Octávio (Zoological Journal of the Linnean Society, 2022)
{The Upper Jurassic Lourinhã Formation is well known for its rich assemblage of fossil vertebrates. In this formation, ornithopod dinosaurs are represented by two iguanodontian species, Eousdryosaurus nanohallucis and Draconyx loureiroi. We recently became aware of unreported material belonging to the holotype of Draconyx loureiroi, consisting of partially articulated manual elements. We here re-describe the holotype specimen ML 357, including the newly discovered material. The specimen was subjected to CT-scanning and its surface data used to assess anatomical characters. Linear measurements of metatarsal III were used to estimate the body length of the specimen. The Draconyx loureiroi holotype was included in two datasets and analysed with maximum parsimony and Bayesian inference approaches to estimate evolutionary rates among Iguanodontia. We present evidence that Draconyx loureiroi is a valid taxon nested in Styracosterna and is clearly diagnosable by a unique combination of characters. Both maximum parsimony and Bayesian inference indicate high evolutionary rates across the Jurassic/Cretaceous transition for the base of Iguanodontia. Length estimation suggests that Draconyx loureiroi was a relatively small, bipedal and possibly cursorial animal. Given its basal phyletic position, we interpret this bauplan was the ancestral condition for Styracosterna, that only later in the Cretaceous evolved into giant quadrupedal forms.}
zlab113

Abordagem STEAM: articulação disciplinar e práticas letivas de professores - P. Teixeira; C. Martins; Rocha, H. (Atas do Encontro de Investigação em Educação Matemática, 2022)

Adaptive Filtering for the Maternal Respiration Signal Attenuation in the Uterine Electromyogram - Daniela Martins; Arnaldo Batista; Mouriño, Helena; Russo, Sara; Catarina Reis; Serrano, Fátima; Ortigueira, Manuel (2022)

A basal ankylopollexian dinosaur from the Late Jurassic of Portugal and its implications for iguanodontian diversity - Rotatori, FM; Camilo, B.; Bertozzo, F.; O. Mateus; Moreno-Azanza, M. (Abstract book of the XIX Annual Conference of the European Association of Vertebrate Palaeontologists, Benevento/Pietraroja, Italy, 27th June-2nd July 2022, 2022)
n/a
n/a

A beta taxonomy approach to Late Jurassic and Early Cretaceous dinosaur assemblages - Saleiro, A.; Guillaume, A.R.D.; Rotatori, FM; Ríos-Ibañez, M.; López, D. Estraviz; Conti, S.; Martino, R.; Puértolas-Pascual, E.; O. Mateus; Moreno-Azanza, M. (Abstract book of the XIX Annual Conference of the European Association of Vertebrate Palaeontologists, Benevento/Pietraroja, Italy, 27th June-2 nd July 2022., 2022)
n/a
n/a

Contribution of the analysis of the mathematical concordance to understand the teachers’ KTMT - Rocha, H. (Journal of Curriculum and Teaching, 2022)
Technology is recognized by its potential to promote mathematical learning. However, achieving this potential requires the teachers to have the knowledge to integrate it properly into their practices. Several authors have intended to characterize the teachers’ knowledge and developed several models, but this approach has often been criticized by its static approach, not attending neither valuing the teachers’ practice. In this study we adopt the KTMT – Knowledge for Teaching Mathematics with Technology model, assuming the teachers’ practice as the main scenario of analysis. We focus on the options guiding the teachers’ decisions when confronted with a situation of lack of mathematical concordance while teaching functions. The situations of lack of mathematical concordance (i.e., situations where the mathematics addressed by the students is different from the one intended by the teacher) are assumed as rich and encapsulating the potential to reveal significant aspects of the teachers’ KTMT. The main goal of the study is to understand what domains of the teachers’ KTMT are highlighted in these circumstances. A qualitative methodology is adopted and one episode of one 10th grade teacher’s practice is analyzed, based on the KTMT model. The conclusions reached show the relevance of different knowledge domains, but emphasize the Mathematics and Technology Knowledge (MTK). They also raise questions about the impact of the specific technology being used on the teachers’ KTMT.

Electrohysterography extracted features dependency on anthropometric and pregnancy factors - Martim Almeida; Mouriño, Helena; Arnaldo Batista; Russo, Sara; Esgalhado, Filipa; dos Reis, Catarina R. Palma; Serrano, Fátima; Ortigueira, Manuel (Biomedical Signal Processing and Control, 2022)

The first Sivatheriine (Artiodactyla, Giraffidae) from the Middle Miocene of Portugal - Ríos, M.; Estraviz-López, D.; Martino, R.; Lohmann, P.; O. Mateus; Solounias, N. (XIX Annual conference of the European Association of Vertebrate Palaeontologists (19th EAVP)At: Benevento, Italy, 2022)
n/a
n/a

Fourier convolution operators with symbols equivalent to zero at infinity on Banach function spaces - Fernandes, Cláudio A.; Karlovich, Alexei Yu.; Karlovich, Yuri I. (Current Trends in Analysis, its Applications and Computation, 2022)

Geologia, Grutas e Fauna Subterrânea do Planalto das Cesaredas, Portugal - Reboleira, Ana; Mateus,Octávio (Captar, 2022)
n/a
n/a

The graphical representation in the learning of functions by 10th grade students - Viseu, F.; Silva, A.; Rocha, H.; Martins, P. (Educación Matemática, 2022)
A exploração de diferentes representações promove a compreensão dos tópicos de funções. Partindo deste pressuposto, com este estudo pretende-se analisar o contributo da representação gráfica na aprendizagem da noção de função inversa e da paridade de uma função por alunos do 10.º ano de escolaridade e identificar dificuldades na exploração dessa representação. Na procura de responder a este objetivo, adotou-se uma abordagem qualitativa e interpretativa para compreender as ações dos alunos na resolução das tarefas propostas. A análise das resoluções mostra que a representação gráfica serviu de suporte para a instituição das definições dos tópicos em estudo. E isto apesar de alguns alunos revelarem dificuldades ao interpretar e ao construir gráficos; ao identificar imagens e imagens inversas em gráficos de funções; ao representar determinadas características gráficas associadas a alguns conceitos, como é o caso da relação entre a paridade de uma função e a simetria na sua representação gráfica (confundindo eixo de simetria e de reflexão). Globalmente, este estudo mostra como a abordagem de conceitos a partir da representação gráfica pode contribuir para a sua compreensão.

A interdisciplinaridade em contexto de integração da tecnologia: o conhecimento profissional de professores de Matemática e de Físico-Química - Coelho, T; Rocha, H. (Atas do Encontro de Investigação em Educação Matemática, 2022)

Moving from one representation to another: different ways of doing it, different mathematical learning - Rocha, H. (Mathematics in School, 2022)