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2022
Oliveira, Tiago, Pedro Matias, and Corneliu Cismasiu. "Análise Experimental e Numérica de Painéis de Vidro Laminado Sujeitos à Ação de Explosões." 4.o ENCONTRO DE I&D EM CIÊNCIAS MILITARES – ECM 2022. Sintra: Academia da Força Aérea, 2022.
Teixeira, P., C. Martins, and H. Rocha Abordagem STEAM: articulação disciplinar e práticas letivas de professores. Atas do Encontro de Investigação em Educação Matemática., 2022.
Martins, NFM, and P. Mota. "An adapted plane waves method for heat conduction problems." Applied Mathematics and Computation. 415 (2022). AbstractWebsite

In this paper we construct a new set of basis functions for the numerical solution of nonhomogeneous heat conduction problems with Dirichlet boundary conditions and null initial data. These functions can be seen as Newtonian potentials of plane waves for the heat equation and satisfy a null initial condition. Density results for adapted waves will be established and several numerical simulations will be presented in order to discuss the accuracy and feasibility of the proposed method. An application of the method for heat problems with non null initial temperature will also be discussed.

Martins, Daniela, Arnaldo Batista, Helena Mouriño, Sara Russo, Catarina Reis, Fátima Serrano, and Manuel Ortigueira. "Adaptive Filtering for the Maternal Respiration Signal Attenuation in the Uterine Electromyogram." Sensors.19 (2022).
Batista, Arnaldo. "Alvarez and Braxton-Hicks Waves in the Electrohysterogram: An Input for Pregnancy Monitoring." 4th Workshop on Signal Processing and Monitoring in Labour. TranslaTUM - Central Institute for Translational Cancer Research, Munich: TranslaTUM, 2022.
Candeias, Marta, António B. Moniz, and Nuno Boavida. "Automation trends in Portugal: implications in productivity and employment." GEE Paper.165 (2022): 34. AbstractWebsite

Recent developments in automation and Artificial Intelligence (AI) are leading to a wave of innovation in organizational design and changes in the workplace. Techno-optimists even named it the ‘second machine age’, arguing that it now involves the substitution of the human brain. Other authors see this as just a continuation of previous ICT developments. Potentially, automation and AI can have significant technical, economic, and social implications in firms. The paper will answer the question: what are the implications on industrial productivity and employment in the automotive sector with the recent automation trends, including AI, in Portugal? Our approach used mixed methods to conduct statistical analyses of relevant databases and interviews with experts on R&D projects related to automation and AI implementation. Results suggest that automation can have widespread adoption in the short term in the automotive sector, but AI technologies will take more time to be adopted. Findings show that adoption of automation and AI increases productivity in firms and is dephased in time with employment implications. Investments in automation are not substituting operators but rather changing work organization. Thus, negative effects about technology and unemployment were not substantiated by our results

https://ideas.repec.org/p/mde/wpaper/0165.html

2021
Ensina, Ana, Patr{\'ı}cia M. Carvalho, Jorge Machado, Maria Lu{\'ı}sa Carvalho, Diogo Casal, Diogo Pais, José Paulo Santos, António A. Dias, and Sofia Pessanha. "Analysis of human tissues using Energy Dispersive X Ray Fluorescence – Dark matrix determination for the application to cancer research." Journal of Trace Elements in Medicine and Biology. 68 (2021): 126837. AbstractWebsite
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Gavinho, Silvia, Manuel Graca, Pedro Prezas, João Borges, Jorge Silva, Eduardo Pires, Henrique Armes, and Jose Coucelo. "Antibacterial bioglass in dental implants: a canine clinical study." 31.Supplement_2 (2021): ckab120-006. Abstract
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Karlovich, Alexei, and Eugene Shargorodsky. "Algebras of convolution type operators with continuous data do not always contain all rank one operators." Integral Equations and Operator Theory. 93.2 (2021): 16.Website
Sara, Russo, Arnaldo Batista, Filipa Esgalhado, Catarina Palma R. dos Reis, Fátima Serrano, Valentina Vassilenko, and Manuel Ortigueira. "Alvarez waves in pregnancy: a comprehensive review." Biophysical Reviews. 1 (2021): 12.
Costa, Francisco, and Octávio Mateus The application of carved extruded polystyrene and papier-mâché clay for recreating missing bones of fossil dinosaurs for museum exhibit. XIX Encontro de Jovens Investigadores em Paleontologia, .Livro de resumos., 2021. Abstractcostamateu2021ejip.pdf

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Esgalhado, Filipa, Fernandes; Beatriz, Valentina Vassilenko, Batista; Arnaldo, and Sara Russo. "The Application of Deep Learning Algorithms for PPG Signal Processing and Classification." Computers 2021. Special Issue Computing, Electrical and Industrial Systems. 10, 158 (2021).the_application_of_deep_learning_algorithms_for_ppg_signal.pdf
Coelho, T., and H. Rocha As características do jogo e o conhecimento profissional do professor: que pontos de contacto?. XVI Congresso Internacional Galego-Portugués de Psicopedagogia. Braga, Portugal, 2021. Abstract

For most teachers, the use of games is not a common practice. This limited professional experience forces the teacher to reflect on the use of games, on how to integrate them into class work, and on how to enhance the development of learning based on them. Our objective is to analyse a set of game scenarios and study aspects that characterise each of them, relating these characteristics to aspects of the professional knowledge to teach with technology. The study adopts an interpretative and qualitative methodology that seeks to understand the relationship between teachers' choices and their professional knowledge. The main findings suggest that the different characteristics of the game scenarios imply the creation of different working environments in the classroom; enhance the emergence of different student difficulties, requiring different ways to support their work; allowing/promoting different conceptual approaches; and the work with different representations. These differences between the game scenarios point to different emphases on the teaching and learning knowledge and the chemistry knowledge, suggesting different mobilizations of the teacher's professional knowledge.

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
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2020
Machado, Jorge, {Patrícia M. S. } Carvalho, Ana Félix, Delfin Doutel, {José Paulo} Santos, {Maria Luísa} Carvalho, and Sofia Pessanha. "Accuracy improvement in XRF analysis for the quantification of elements ranging from tenths to thousands μg g-1in human tissues using different matrix reference materials." Journal of Analytical Atomic Spectrometry. 35 (2020): 2920-2927. Abstract

In this work, we aim at achieving the most accurate quantitative determination of elements in human tissues by means of X-ray Fluorescence spectrometry using the external calibration approach. A calibration curve built using a set of certified reference materials (CRM) of animal tissue was compared with the one obtained with a set of CRMs of plants and leaves with lower atomic number Z but with correction of the matrix using the scattering peaks of the X-ray tube anode. Finally, a calibration curve combining the two sets of CRMs was built and the accuracy of the quantification using the three methods was compared and a more precise method of quantification was obtained. This improved approach was tested on five paired samples of normal and tumour human tissue. Despite the high heterogeneity of the samples, and given the improvement in accuracy of the measurements, significant differences were found in the elemental concentration of low-Z elements. This journal is

Favinha, André G., Daniela S. Barreiro, Joana N. Martins, Philip O'Toole, and Sofia R. Pauleta. "Acrylamide-hemoglobin adduct: A spectroscopic study." 241 (2020): 118644. AbstractWebsite

Acrylamide is a neurotoxic and carcinogenic organic compound that is able to bind to several biomolecules and form adducts, through nucleophilic addition and in vivo by the Maillard Reaction, interfering with the biological functions of these molecules. Hemoglobin is one of the most abundant intracellular blood proteins, and thus it is of high interest to understand whether the binding of acrylamide can alter its properties. The interaction of acrylamide with hemoglobin was assessed in a 20:1 ratio, and after a 72 h-incubation period, a decrease of ca. 50% in the absorbance of the hemoglobin's Soret band was observed at 37 °C. This together with the analysis of circular dichroism spectra indicate that acrylamide binds in close proximity to the heme group. These perturbations were confirmed to not correspond to the loss of the heme group and were mostly reverted after passing the protein through a size-exclusion chromatographic matrix, suggesting a dominant non-covalent interaction for the observed effect. The thermodynamic parameters of unfolding in the absence and presence of acrylamide, suggest an interaction based on H-bonds and van der Waals forces that slightly stabilizes hemoglobin. The oxygen binding capacity of hemoglobin does not seem to be hindered, as no differences in the Q bands were observed in the adduct.

Park, Jin-Young, Yuong-Nam Lee, Philip J. Currie, Yoshitsugu Kobayashi, Eva Koppelhus, Rinchen Barsbold, Octávio Mateus, Sungjin Lee, and Su-Hwan Kim. "Additional skulls of Talarurus plicatospineus (Dinosauria: Ankylosauridae) and implications for paleobiogeography and paleoecology of armored dinosaurs." Cretaceous Research. 108 (2020): 104340. Abstractpark_et_al_2020_additional_skulls_of_talarurus_plicatospineus_dinosauria_final.pdfWebsite

Three new additional skull specimens of Talarurus plicatospineus have been recovered from the Upper Cretaceous (Cenomanian–Santonian) Bayanshiree Formation, of Bayan Shiree cliffs, eastern Gobi Desert, Mongolia. The skulls feature unique characters such as an anteriorly protruded single internarial caputegulum, around 20 flat or concave nasal-area caputegulae surrounded by a wide sulcus, a vertically oriented elongate loreal caputegulum with a pitted surface, an elongate lacrimal caputegulum positioned above the posterodorsal border of the maxilla, two longitudinally arranged large frontoparietal caputegulae surrounded by smaller rhomboid caputegulae, small but elongate medial supraorbital caputegulae, a posterior supraorbital caputegulum that is four times larger than the anterior one, up to three transverse parallel grooves on the dorsal surface of the posterior supraorbital caputegulum, postocular caputegulae along the ventral to posterior rim of the orbit that extend almost to the anteroventral margin of the squamosal horn, a longitudinal furrow tapering towards the apex of the squamosal horn, a lateral nuchal caputegulum four to five times larger than other nuchal caputegulae, and a pterygovomerine keel with a ventral margin that is dorsally positioned to the alveolar ridge. The phylogenetic analysis result showed that Talarurus is sister to the clade that includes the derived Asian ankylosaurines (Saichania chulsanensis, Tarchia kielanae, and Zaraapelta nomadis). It also shows that there was dispersal of ankylosaurines from Asia into western North America before the Cenomanian. Moreover, the rostral differences between Talarurus and Tsagantegia, another ankylosaur from the same formation, suggest possible niche partitioning between these taxa.

Cabrita, M. R., and S. Duarte. "Addressing Sustainability and Industry 4.0 to the Business Model." Strategies for Business Sustainability in a Collaborative Economy. IGI Global, 2020. 178-198.
Karlovich, Alexei Yu. "Algebras of continuous Fourier multipliers on variable Lebesgue spaces." Mediterranean Journal of Mathematics. 17.102 (2020): 19 pages.Website
Ribau, A. M., L. Ferrás, M. L. Morgado, M. Rebelo, and A. Afonso. "Analytical and numerical studies for slip flows of a generalised Phan-Thien-Tanner fluid." ZAMM Journal of applied mathematics and mechanics: Zeitschrift für angewandte Mathematik und Mechanik . 100.3 (2020).