FM 047-02: a collisional pair of galaxies with a ring

Aims. We investigate the nature of the galaxy pair FM 047-02, which has been proposed as an archetype of the Solitaire types of peculiar (collisional) ring galaxies. Methods. The study is based on long-slit spectrophotometric data in the range of 3500-9500 angstrons obtained with the Gemini Multi-ObjectComment: 07 pages, 06 figures, 02 tables. arXiv admin note: text overlap with arXiv:1206.071

Perfil literário das pessoas com 65 e mais anos com actividade económica

A partir da década de sessenta, surgiram modificações nos padrões de morbilidade e mortalidade da população devido aos processos de transição demográfica e epidemiológica repercutindo-se, principalmente, na estrutura populacional de alguns países1. No seguimento dos processos de transição, uma das consequências resultantes é, naturalmente, o envelhecimento populacional. Este processo é um dos objectos de estudo da Gerontologia, em interdisciplinaridade com outras áreas do saber2, entre as quais a educação. A literacia é sem dúvida uma das competências essenciais para a actividade do quotidiano3, tornando-se, ainda mais necessária em actividades específicas, nomeadamente a actividade económica

Development and application of a microsurfacing mix design method to assess the influence of the emulsion type

Microsurfacing asphalt mixtures are a preventive maintenance technology comprising the application of a slurry (produced with a modified asphalt emulsion), aggregate, filler, and water on top of an existing pavement at ambient temperature. Although it is a widely used technology, further studies on the mix design procedures are necessary to ensure an adequate composition. Thus, this study contributes to developing an improved mix design procedure for microsurfacing asphalt mixtures. Different mixtures were prepared, and the influence of the type and amount of asphalt emulsion and the amount of added water and filler (cement) on the characteristics of the mixture were evaluated. Two preliminary tests, referred to as the “pizza test” and the “ball test”, were proposed to determine the initial proportions of added water and cement in the mixture, respectively. Then, consistency, cohesion, and shaking abrasion tests were performed to determine the optimum content of each component and evaluate their influence on the mixture characteristics. The results showed that these tests are essential to optimize the mix composition, even though it was found that the mix design of microsurfacings is a complex task because the mixture is a system with chemical interactions strongly influenced by its composition.This research was funded by Fundação para a Ciência e a Tecnologia through a Ph.D. grant (number 2021.08004.BD). This work was also partly financed by FCT/MCTES through national funds (PIDDAC) under the R&D Unit Institute for Sustainability and Innovation in Structural Engineering (ISISE), reference UIDB/04029/2020, and under the Associate Laboratory Advanced Production and Intelligent Systems ARISE, reference LA/P/0112/2020

The PREPIT project : Pregraduate Research Program Impact & Trajectories : a work in progress

Introduction: The GAPIC – Gabinete de Apoio à Investigação Científica, Tecnológica e Inovação (Scientific Research, Technology and Innovation Support Office) of Faculdade de Medicina da Universidade de Lisboa (FMUL) is celebrating its 30th anniversary. During the past 30 years, GAPIC has developed several initiatives to promote and disseminate scientific research, mostly among undergraduate students and young graduates. These initiatives have been fundamental in the career path of young students and have had an increase impact in the future of society and the quality of life of its citizens. To assess the impact of GAPIC Programs in terms of gains in knowledge, skills and attitudes; barriers and opportunities; scientific production and professional trajectories of undergraduate students who participated in the GAPIC scientific research projects from 1997/98 to 2014/2015, the PREPIT Project is being developed with the collaboration of the FMUL´s library team. Two primary objectives were defined: i) Evaluate scientific productivity indicators of participants in GAPIC undergraduate programs in short and long term (study A); ii) Characterize the perspectives of participants in GAPIC undergraduate programs on the importance and impact of these (study B). Secondary objectives are: i) Identify predictors of scientific productivity indicators of these participants in short and long term (study A); ii) Characterize professional and academic trajectories among participants and identify predictors of these trajectories (study B). As a work in progress, only preliminary results are presented. Methods: Study Design1: two-component observational study: cohort, retrospective, bibliometric (study A) and cross-sectional, by electronic survey (study B). Population: all undergraduate students accepted to the GAPIC “Education for Science” program (or equivalent) from 1997/98 to 2014/2015. Data Collection and Instruments: i) data collection for the bibliometric cohort study (study A): academic year/GAPIC program; number of participations; demographic data; project description; ORCID iD. The definition of scientific profiles will be done through WoS and Scopus bibliometric data. Data will be exported to Excel and analyzed through SPSS. For data collection by electronic survey (study B) SurveyMonkey platform will be used. The survey will include closed, single and multiple choice questions, with Likert2 items. A modified Dillmman methodology3 with 3 reminders will be used and the survey will be open for 4 weeks. Study B protocol will be submitted to the Ethics Committee. Results and discussion: Based on author name and ORCID iD search, by now we have collected preliminary bibliometric data from 553 students involved in 387 GAPIC projects. As this is a work in progress more results will be available soon after the distribution and analysis of the electronic survey results. At the end of the project we aim to achieve all the proposed objectives, to gain an in-depth understanding of the impact and relevance of integrating research in all stages of medical education and positively contribute to support future research training interventions.info:eu-repo/semantics/publishedVersio

Integração de um conversor de metadados Dublin-Core para RDF no sistema Gestor de Conteúdo.

Recursos Eletrônicos como vídeos e imagens podem ser descritos por metadados que são usados por motores de busca para melhorar os resultados de pesquisa. A Agência de Informação Embrapa é um sistema Web que possibilita a interação com informações tecnológicas e ao conhecimento gerado pela Embrapa e outras instituições de pesquisa. Objetivo. Tornar esses Recursos visíveis aos motores de busca a partir de um conversor dos metadados de recursos Dublin-Core para RDF (Figura1) disponíveis no website da Agência de Informação Embrapa.Trabalho apresentado na V Mostra de Trabalhos de Estagiários e Bolsistas, Campinas, out. 2009

THE IMPACT OF VOLUNTEERING AND THE ACQUISITION OF SKILLS THROUGH PRACTICE

This study intended to assess the impact of volunteering on society and understand how its practice allows the acquisition of skills. In addition, it would make the population aware of the value and importance of the different ways of volunteering. One of the central points of this investigation was to understand how institutions should recruit and attract volunteers and ultimately how to retain them, by understanding whether or not the volunteers’ initial motivations (i.e. which attract them) remain unchanged along time. This study was carried out within the scope of the ENtRANCE Erasmus+ project, by students of the Research Methods and Techniques course integrated in the Communication Sciences degree at Maia University Institute and had the collaboration of the Volunteer School, Pista Mágica by contacting its volunteers and clarifying relevant information. Several scientific articles were analysed, such as [1]; [2]; [3]; [4]; [5] which allowed a first approach to such topic but with no answers found.info:eu-repo/semantics/publishedVersio

Comparison of the extracellular polymeric substances of Candida albicans and Candida dubliniensis biofilms

Candida albicans and Candida dubliniensis live as benign commensal organisms in the oral cavity of both healthy and unhealthy individuals behaving, under certain conditions, as opportunistic pathogens, causing candidiasis. These two Candida species have been mismatched for years, but recently Candida dubliniensis was recovered from the mouth of imunnosupressed patients and identified as a different species. Candidiasis is usually related with the Candida capacity of forming biofilms on inert or biological surfaces, being this phenotype associated with infections. Biofilms are complex structures of microbial communities attached to a surface, in which microorganisms are embedded in a matrix of extracellular polymeric substances (EPS), composed mainly by proteins and polysaccharides. The biofilm matrix holds the potential of determining possible mechanisms of resistance of Candida biofilms. Several factors are known as affecting the production of EPS, namely, growth medium, growth phase and substratum. This study focused the influence of artificial saliva growth medium in the composition of EPS of biofilms formed by both Candida albicans and Candida dubliniensis strains. Biofilms of one strain of Candida albicans and two strains of Candida dubliniensis were formed in an artificial saliva growth medium (ASGM) and compared with those formed in Sabouraud Dextrose Broth (SDB) and analysed after 48h.The differences between the EPS of biofilms were evaluated (after sonication) in terms of proteins (quantified using the BCA protein assay kit) and polysaccharides (quantified using the phenol-sulphuric method). Proteins were also analysed by SDS-PAGE. In SDB the amount of proteins and polysaccharides in the EPS of biofilms formed by Candida albicans was lower than in the EPS of biofilms formed by Candida dubliniensis strains. In the presence of ASGM the amount of proteins and polysaccharides was similar among the EPS of biofilms of Candida albicans and one of the Candida dubliniensis strains and was lower in biofilms of Candida albicans than in biofilms of the other Candida dubliniensis. Analysis of protein profiles obtained by SDS-PAGE showed that all strains present similar patterns independently of the medium of biofilm formation. Biofilms formed in ASGM originated different amounts of EPS, either in terms of polysaccharides or proteins, compared to the ones formed in SDB. Differences were also found in the profile of extracellular proteins of each strain, depending on the medium