Export 3117 results:
Sort by: Author Title Type [ Year  (Desc)]
2021
Batista, Arnaldo G., Ricardo Cebola, Filipa Esgalhado, Sara Russo, Catarina Palma R. dos Reis, Fátima Serrano, Valentina Vassilenko, and Manuel Ortigueira. "The contractiongram: A method for the visualization of uterine contraction evolution using the electrohysterogram." Biomedical Signal Processing and Control. 67 (2021).
Ezquerro, Lope, Blanca Balauz, Rute Coimbra, Carmen Nuñez-Lahuerta, Octávio Mateus, Teresa Román, and Miguel Moreno-Azanza Evidence of sedimentary remodel of Jurassic theropod egg clutches (Lourinhã, Portugal). 18th Conference of the EAVP-Abstract book., 2021. Abstractezquerro_et_al_2021_sedimentary_remodel.pdf

n/a

Moreno-Azanza, Miguel, Octávio Mateus, Blanca Bauluz, Rute Coimbra, Lope Ezquerro, and Carmen Núñez-Lahuerta Hatching in Portugal: a new look to old eggs. XIX Encontro de Jovens Investigadores em Paleontologia, .Livro de resumos., 2021. Abstractmoreno-azanza_et_al_2021_eggs_ejip.pdf

n/a

Delgado, B., H. Carrêlo, M. V. Loureiro, A. C. Marques, J. P. Borges, and M. T. Cidade. "Injectable hydrogels with two different rates of drug release based on pluronic/water system filled with poly(ε-caprolactone) microcapsules." J Mater Sci . 56.23 (2021): 13416.
Carrêlo, Henrique, Paula I. P. Soares, João Paulo Borges, and Maria Teresa Cidade. "Injectable Microparticle/Hydrogel Composite Systems for Bio-2 active Cargo Controlled Delivery." Gels . 7.3 (2021): 147.
Beccari, Victor, Octávio Mateus, Oliver Wings, Jesper Milàn, and Lars B. Clemmensen. "Issi saaneq gen. et sp. nov.—A New Sauropodomorph Dinosaur from the Late Triassic (Norian) of Jameson Land, Central East Greenland." Diversity. 13 (2021). Abstractdiversity-13-00561-v2.pdfWebsite

The Late Triassic (Norian) outcrops of the Malmros Klint Formation, Jameson Land (Greenland) have yielded numerous specimens of non-sauropod sauropodomorphs. Relevant fossils were briefly reported in 1994 and were assigned to Plateosaurus trossingensis. However, continuous new findings of early non-sauropod sauropodomorphs around the globe facilitate comparisons and allow us to now revise this material. Here, the non-sauropod sauropodomorph Issi saaneq gen. et sp. nov. is described based on two almost complete and articulated skulls. The two skulls represent a middle-stage juvenile and a late-stage juvenile or subadult. Issi saaneq differs from all other sauropodomorphs by several unique traits: (1) a small foramen at the medial surface of the premaxilla; (2) an anteroposteriorly elongated dorsoposterior process of the squamosal; (3) a relatively high quadrate relative to rostrum height; (4) a well-developed posterodorsal process of the articular. These features cannot be explained by taphonomy, ontogeny, or intraspecific variation. Issi saaneq shows affinities to Brazilian plateosaurids and the European Plateosaurus, being recovered as the sister clade of the latter in our phylogenetic analysis. It is the northernmost record of a Late Triassic sauropodomorph, and a new dinosaur species erected for Greenland. Issi saaneq broadens our knowledge about the evolution of plateosaurid sauropodomorphs.

G., Correia Viviana, Trovão Filipa, Pinheiro Benedita A., Brás Joana L. A., Silva Lisete M., Nunes Cláudia, Coimbra Manuel A., Liu Yan, Feizi Ten, Fontes Carlos M. G. A., Mulloy Barbara, Chai Wengang, Carvalho Ana Luísa, and Palma Angelina S. "Mapping Molecular Recognition of β1,3-1,4-Glucans by a Surface Glycan-Binding Protein from the Human Gut Symbiont Bacteroides ovatus." Microbiology SpectrumMicrobiology Spectrum (2021): e01826-21. AbstractWebsite

n/a

Caetano, Constantino, Maria Luisa Morgado, Paula Patrício, João F. Pereira, and Baltazar Nunes. "Mathematical Modelling of the Impact of Non-Pharmacological Strategies to Control the COVID-19 Epidemic in Portugal." Mathematics. 9.10 (2021).
Canarias, Tiago, Alexei Karlovich, and Eugene Shargorodsky. "Multiplication Is an open bilinear mapping in the Banach algebra of functions of bounded Wiener $p$-variation." Real Analysis Exchange. 46.1 (2021): 121-148.Website
Tipa, Cezar, Maria T. Cidade, Tânia Vieira, Jorge Carvalho Silva, Paula I. P. Soares, and João Paulo Borges. "A New Long-Term Composite Drug Delivery System Based on Thermo-Responsive Hydrogel and Nanoclay." Nanomaterials . 11 (2021): 25.
López-Rojas, V., O. Mateus, J. Milàn, O. Wings, N. Klein, and L. B. Clemmensen A new phytosaur from the Late Triassic of Jameson Land, Greenland. 3rd Palaeontological Virtual Congress, .Book of Abstracts. ISBN 978-84-09-36657-6, 2021. Abstractlopez_rojas_2021_pvc3_greenland.pdf

n/a

Clemmensen, Lars B., Sofie Lindström, Octávio Mateus, Malte Mau, Jesper Milàn, and Dennis V. Kent. "A new vertebrate fossil-bearing layer in the Rhætelv Formation (Kap Stewart Group) of central East Greenland: evidence of a Hettangian marine incursion into the continental Jameson Land Basin." Lethaia. n/a (2021). Abstractlet.12449.pdfWebsite

The Kap Stewart Group (Rhaetian-Sinemurian, Triassic–Early Jurassic) of the Jameson Land Basin in central East Greenland has traditionally been regarded as a strictly continental unit with delta and perennial lake sediments. New finds of plesiosaur bone remain in a thin storm deposited sandstone bed in the middle part of the Rhætelv Formation of the Kap Stewart Group, however, indicates a likely period of marine influence. At the study area at the eastern margin of the basin, the Rhætelv Formation is 300-m thick and overlies unconformably the Norian Fleming Fjord Group. The bone-bearing sandstone occurs 190 m above the base of the group and is closely associated with black laminated mudstones; palynological investigation of three samples from these mudstones indicates that they are of a younger Hettangian age. The Hettangian was a relatively short stage (201.3–199.5 Ma) and elsewhere characterized by two episodes of sea-level highstands. Assuming that the marine incursion in the Jameson land Basin evidenced by the plesiosaur fossil remains took place during the youngest of these sea-level highstands, the bone-bearing bed of the Rhætelv Formation can be dated to 200 Ma and thereby gives the first numerical age constraint of this hitherto poorly dated succession.

Bastos, Maria Amélia, Luís Castro, and Alexei Yu. Karlovich(eds.) Operator Theory, Functional Analysis and Applications. Basel: Birkhäuser, 2021.
Costa, S., M. Faias, P. Júdice, and P. Mota. "Panel data modeling of bank deposits." Annals of Finance. 17 (2021): 247-264. AbstractWebsite

Studying the dynamics of deposits is important for three reasons: first, it serves as an important component of liquidity stress testing; second, it is crucial to asset-liability management exercises and the allocation between liquid and illiquid assets; third, it is the support for a liquidity at risk (LaR) methodology.

Current models are based on AR(1) processes that often underestimate liquidity risk. Thus a bank relying on those models may face failure in an event of crisis. We propose a novel approach for modeling deposits, using panel data and a momentum term.

The model enables the simulation of a variety of deposit trajectories, including episodes of financial distress, showing much higher drawdowns and realistic liquidity at risk estimates, as well as density plots that present a wide range of possible values, corresponding to booms and financial crises.

Therefore, this methodology is more suitable for liquidity management at banks, as well as for conducting liquidity stress tests.

Laronha, H., I. Carpinteiro, J. Portugal, A. Azul, M. Polido, K. T. Petrova, MI Salema, I. Barahona, and Jorge Caldeira. "Polymerizable Matrix Metalloproteinases’ Inhibitors with Potential Application for Dental Restorations." Biomedicines. 9 (2021): 366-386. https://doi.org/10.3390/ biomedicines9040366.
Milàn, J., O. Mateus, M. Mau, A. Rudra, H. Sanei, and L. B. Clemmensen. "A possible phytosaurian (Archosauria, Pseudosuchia) coprolite from the Late Triassic Fleming Fjord Group of Jameson Land, central East Greenland." Bulletin of the Geological Society of Denmark. 69 (2021): 71-80. Abstractmilan_et_al_2021_coprolites_greenland_bull69-71-80.pdfWebsite

A large, well-preserved vertebrate coprolite was found in a lacustrine sediment in the Malmros Klint Formation of the Late Triassic Fleming Fjord Group in the Jameson Land Basin, central East Greenland. The size and internal and external morphology of the coprolite is consistent with that of crocodilian coprolites and one end of the coprolite exhibits evidence of post-egestion trampling. As the associated vertebrate fauna of the Fleming Fjord Group contains abundant remains of pseudosuchian phytosaurs, the coprolite is interpreted as being from a large phytosaur.

Casimiro, Ana, and Susana Ferreira. "Principal Higgs Bundles and Schottky Representations." ISAAC 2019 (2021).
Faggiano, E., H. Rocha, A. Sacristan, and M. Santacruz-Rodríguez. "Towards pragmatic theories to underpin the design of teacher professional development concerning technology use in school mathematics." Mathematics Education in the Digital Age: Learning, Practice and Theory . Eds. A. Donevska-Todorova, E. Faggiano, J. Trgalova, H. - G. Weigand, and A. Clark-Wilson. Routledge, 2021. 42-68. Abstract

This chapter aims to make more explicit the grounded or ‘pragmatic theories’ that inform the design of mathematics teachers’ professional development (PD) to exploit technological affordances. It uses aspects of some representative projects that took place in four countries (Colombia, Italy, Mexico, and Portugal) to illustrate lessons learned (e.g., similarities and differences, barriers and opportunities) and provide important insights to inform future PD implementations. To do this, we have identified a set of aspects (and sub-aspects) that emerged in relation to five major themes and reveal our ‘pragmatic theories’ alongside a consideration of the interconnections between these aspects. Our contribution offers a methodological frame to support future PD designs for teachers of mathematics concerning digital technology uses.

Santos, J. P., Iulian Otel, Joao Silveira, Valentina Vassilenko, António Mata, Maria Luísa Carvalho, José Paulo Santos, and Sofia Pessanha. "Application of Unsupervised Multivariate Analysis Methods to Raman Spectroscopic Assessment of Human Dental Enamel." Computers (2021). AbstractWebsite
n/a
Oliveira, R. D., A. Mouquinho, P. Centeno, M. Alexandre, S. Haque, R. Martins, E. Fortunato, H. Águas, and MJ Mendes. "Colloidal lithography for photovoltaics: An attractive route for light management." Nanomaterials. 11 (2021). AbstractWebsite
n/a
Grey, P., M. Chapa, M. Alexandre, T. Mateus, E. Fortunato, R. Martins, MJ Mendes, and L. Pereira. "Combining Soft with Hard Condensed Matter for Circular Polarized Light Sensing and Logic Operations." Advanced Optical Materials. 9 (2021). AbstractWebsite
n/a
Alexandre, Leonardo, Rafael S. Costa, and Rui Henriques. "DI2: prior-free and multi-item discretization of biological data and its applications." BMC bioinformatics. 22 (2021): 1-19. Abstract
n/a
Duarte, Marlene, Aldino Viegas, Victor D. Alves, José A. M. Prates, Luís M. A. Ferreira, Shabir Najmudin, Eurico J. Cabrita, Ana Luísa Carvalho, Carlos M. G. A. Fontes, and Pedro Bule. "A dual cohesin–dockerin complex binding mode in Bacteroides cellulosolvens contributes to the size and complexity of its cellulosome." Journal of Biological Chemistry. 296 (2021): 100552. AbstractWebsite

The Cellulosome is an intricate macromolecular protein complex that centralizes the cellulolytic efforts of many anaerobic microorganisms through the promotion of enzyme synergy and protein stability. The assembly of numerous carbohydrate processing enzymes into a macromolecular multiprotein structure results from the interaction of enzyme-borne dockerin modules with repeated cohesin modules present in noncatalytic scaffold proteins, termed scaffoldins. Cohesin–dockerin (Coh-Doc) modules are typically classified into different types, depending on structural conformation and cellulosome role. Thus, type I Coh-Doc complexes are usually responsible for enzyme integration into the cellulosome, while type II Coh-Doc complexes tether the cellulosome to the bacterial wall. In contrast to other known cellulosomes, cohesin types from Bacteroides cellulosolvens, a cellulosome-producing bacterium capable of utilizing cellulose and cellobiose as carbon sources, are reversed for all scaffoldins, i.e., the type II cohesins are located on the enzyme-integrating primary scaffoldin, whereas the type I cohesins are located on the anchoring scaffoldins. It has been previously shown that type I B. cellulosolvens interactions possess a dual-binding mode that adds flexibility to scaffoldin assembly. Herein, we report the structural mechanism of enzyme recruitment into B. cellulosolvens cellulosome and the identification of the molecular determinants of its type II cohesin–dockerin interactions. The results indicate that, unlike other type II complexes, these possess a dual-binding mode of interaction, akin to type I complexes. Therefore, the plasticity of dual-binding mode interactions seems to play a pivotal role in the assembly of B. cellulosolvens cellulosome, which is consistent with its unmatched complexity and size.

Alishah, H. M., F. P. G. Choi, U. D. Menda, C. Kahveci, M. C. Rodop, MJ Mendes, and S. Gunes. "Effect of Bathocuproine Concentration on the Photovoltaic Performance of NiOx-Based Perovskite Solar Cells." Journal of the Mexican Chemical Society. 65 (2021): 149-160. AbstractWebsite
n/a
Yang, Y., J. Zhao, S. Zhang, C. Chastre, and H. Biscaia. "Effect of mechanical anchorage on the bond performance of double overlapped CFRP-to-steel joints." Composite Structures. 267 (2021). AbstractWebsite

Mechanical anchorage devices have the potential to efficiently improve the bond behavior of Carbon Fiber-Reinforced Polymers (CFRP) Externally Bonded (EB) onto steel with an adhesive. Existing relevant studies, however, have been very limited. Against this background, experimental and numerical studies on the double overlapped CFRP-to-steel bonded joints with an end mechanical anchorage were carried out in the present study. Two types of CFRP laminates (i.e., SIKA CFRP and the other type made in Harbin Institute of Technology – HIT) were used in the bond tests, with or without end mechanical anchorage devices. The test results showed that the end mechanical anchorage had marginal effect on the bond-slip relationship between EB CFRP and steel as well as debonding load, but could increase the ultimate load. It was also found that CFRP laminate from HIT had a better bond performance than that from SIKA, in terms of both debonding load and ultimate load. Using ABAQUS, Finite Element (FE) model was established on such bonded joints and the accuracy was verified with test results. The verified FE model was adopted in a parametric study to further clarify the effect of key parameters on the bond behavior of such bonded joints. © 2021 Elsevier Ltd