2,772 research outputs found
The behavior of academic investigators using an institutional repository
Institutional repositories (IRs) are a new strategy for universities to expedite changes in scientific communication. They are digital collections that store, preserve, and make available the intellectual output of one or more universities. Housing this production in an IR can solve problems such as the high acquisition and maintenance costs of collections, and the publication of gray literature, reports and post-prints. However, the IR brings new questions about copyright that are still in discussion. It can also improve the situation of the universities that are responsible for producing 70% of the scientific papers, buying from commercial editors about 90% of the articles they consume, compromising part of the budget in the acquisition of periodicals that bring back the results of their own work.
The use of open archives by IRs should stimulate self-archiving, since it assures a more efficient dissemination of digital documents. However, self-archiving is a new task, sometimes perceived as an additional burden in overcrowded schedules, not yet part of the habits and routines of researchers and academic staff.
This work is justified in a socio-cultural context, especially in understanding the behavior of investigators from different knowledge areas and cultures in their acceptance and use of IRs, being possible to know important factors in its adoption.
This way, we intend to provide the academic managers guidelines that help them to promote a culture of sharing and disseminating the scientific information produced by their institutions, increasing the investigation’s excellence
RepositóriUM: implementação do DSpace em português: lições para o futuro e linhas de investigação.
Neste trabalho descrevemos a implementação do Repositório Institucional (RepositóriUM) da Universidade do Minho (UMinho), Portugal. A UMinho traduziu e está a utilizar a primeira versão em língua portuguesa do DSpace, um programa Open Source desenvolvido numa parceria entre o Massachusetts Institute of Technology (MIT) e a Hewlett-Packard (HP). As cinco fases definidas para o plano de implementação são descritas neste trabalho (1. instalação, tradução e configuração; 2. carregamento de teses e dissertações; 3. instituição das comunidades piloto; 4. abertura do repositório ao público, e 5. abertura para toda comunidade da UMinho), bem como as razões que conduziram à escolha das seis comunidades piloto de diferentes áreas do conhecimento para participarem nesse período de implementação (Sistemas de Informações; Engenharia de Polímeros; Engenharia Biológica; Gestão, e uma da área de Ciências Humanas e outra da área de Ciências Sociais). Neste artigo pretendemos compartilhar as lições aprendidas com o processo, e os caminhos de investigação que o projecto abriu, em particular para investigação e comparação de comportamentos de comunidades com diferentes culturas, de acordo com algumas questões e observações surgidas durante os primeiros dez meses de experiência. Tendo estas informações como base, foram identificados alguns caminhos para pesquisa que começam a ser desenvolvidos no contexto de pesquisas de mestrado ou doutorado na UMinho
RepositóriUM: implementing DSpace in portuguese: lessons for the future and research pathways
In this paper we describe the implementation of the Minho University (UMinho) Institutional
Repository (RepositóriUM), Portugal. UMinho translated and has been using the first Portuguese
version of DSpace, an Open Source software system developed in a partnership of the Massachusetts
Institute of Technology (MIT) and Hewlett-Packard (HP). The five phases established for the
implementation plan are pointed out in this work (1. installation, translation, and configuration; 2.
upload of thesis and dissertations; 3. establishment of pilot communities; 4. making the repository
public, and 5. opening to the overall UMinho community), as well as, the reasons that led to the
choice of the six pilot communities of different areas of knowledge (Information Systems; Polymers
Engineering; Biological Engineering; Management, and one from the Humanities and another from
the Social Sciences areas) to participate in this implementation period. In this paper we wish to
share the lessons learnt, and the pathways for research, in particular for cross-cultural research,
according to some questions and observations obtained during the first 10 months of experience.
With this information as a background, some research pathways have been identified and are starting
to be further developed in the context of MSc or PhD research at UMinho
Dynamic identification of paradela historic railway bridge
Paradela Bridge is a metallic bridge located along the bank of the Tua River in northern Portugal. While the bridge is not currently in service, its structure is representative of many metallic truss structures built across the country between the 19th and the 20th century. The construction of the Paradela Bridge was completed in 1886 and served for about 120 years connecting northern Portugal. Tua Line belongs to the Douro area that UNESCO recently declared as world heritage. This work acquires its importance since it might serve as an insight for the study of many other similar structures all over the country. This paper comprises a historic investigation of archived documents, an on-site survey to evaluate its present conditions, a dynamic testing and the construction and calibration of numerical models in finite element analysis software for structural assessment and capacity rating estimation(undefined
Variabilidade e reprodutibilidade da análise das medições ecocardiográficas na estenose valvular aórtica
Background: Doppler echocardiography is the most frequent method for detecting and evaluating the severity of valvular aortic stenosis. The aim of this study was to assess the variability and reproducibility of echocardiographic parameters including aortic valve area (AVA), peak aortic jet velocity (Vmax), velocity ratio (VLVOT/Vmax), peak gradient (Gmax) and mean gradient (Gmean) in aortic stenosis (AS) patients. Methods: Doppler echocardiograms were obtained from 150 randomly selected patients (56.7% male; mean age 73±9 years) with asymptomatic moderate aortic valve stenosis. The echocardiographic measurements were performed by two independent level III (expert) blinded observers. To assess intra-observer variability, we evaluated parameters of AS progression at two different times (mean of two weeks after the first examination). Results: For intra-observer variability (observer 1), the variation and reproducibility coefficients were, respectively, 1.88% and 0.16 m/s for Vmax, 2.08% and 0.14 for VLVOT/Vmax, 2.05% and 0.18 cm2 for AVA, 3.89% and 5.18 mmHg for Gmax and 7.87% and 6.30 mmHg for Gmean. For inter-observer variability, the variation and reproducibility coefficients were, respectively, 2.00% and 0.14 m/s for Vmax, 2.91% and 0.14 for VLVOT/Vmax, 7.67% and 0.16 cm2 for AVA, 8.53% and 7.06 mmHg for Gmean and 3.90% and 5.58 mmHg for Gmax. Both intra- and inter-observer studies showed excellent intraclass correlation coefficients (ICC) for all echocardiographic parameters (ICC ranged from 0.943 to 0.990 for intra-observer variability and from 0.955 to 0.992 for interobserver variability). Conclusion: Doppler echocardiographic measurements of AVA, Vmax, Gmax and Gmean are highly reproducible when performed by expert observers. Of all echocardiographic parameters, Vmax and VLVOT/Vmax showed the best variability and reproducibility, and thus constitute reliable tools for clinical and research purposes in aortic stenosis diagnosis and follow-up.Introdução: A ecocardiografia Doppler é o método mais frequente de detecção e avaliação da gravidade da estenose valvular aórtica. O objectivo deste estudo foi avaliar a variabilidade e reprodutibilidade dos parâmetros ecocardiográficos como a área valvular aórtica (AVA), velocidade pico (Vmax), relação de velovidades (VLVOT/Vmax), gradiente pico (Gmax) e gradiente médio (Gmédio) nos doentes com estenose aórtica. Métodos: Um ecocardiograma Doppler foi realizado em 60 doentes consecutivos seleccionados aleatoriamente (da população do estudo RAAVE) com estenose aórtica moderada a grave assintomática (56.7% sexo masculino; idade média 73 ± 9 anos). As medidas ecocardiográficas foram efectuadas por dois ecocardiografistas de nível III numa estratégia de dupla ocultação. Para o estudo da variabilidade intra-observador, avaliamos os prâmetros de progressão da estenose aórtica em dois momentos diferentes (média de duas semanas após o 1.º exame). Resultados: No que respeita à variabilidade intra-observador (observador 1), os coeficientes de variação e reprodutibilidade foram, respectivamente, 1.88% e 0.16 m.s-1 para a Vmax, 2.08% e 0.14 cm2 para a VLVOT/Vmax, 2.05% e 0.18 ms-1 para a AVA, 3.89% e 5.18 mmHg para Gmax and 7.87% e 6.30 mmHg para o Gmédio. No que respeita à variabilidade inter- -observador, os coeficientes de variação e reprodutibilidade foram, respectivamente, 2.00% e 0.14 m.s-1 para a Vmax, 2.91% e 0.14 m.s-1 para a relação VLVOT/Vmax, 7.67% e 0.16 cm2 para a AVA, 8.53% e 7.06 mmHg para o Gmédio e 3.90% e 5.58 mmHg para o Gmax. Os estudos intra-observador e inter-observador mostraram ter excelentes coeficientes de correlação intra-classe (CCI), para todos os parâmetros ecocardiográficos (CCI varia de 0.943 até 0.990 para a variabilidade intra- -observador e de 0.955 até 0.992 para a variabilidade inter-observador). Conclusões: As medições ecocardiográficas da AVA, Vmax, Gmax and Gmédio são altamente reprodutíveis quando realizadas por ecocardiografistas experientes. De todos os parâmetros ecocardiográficos a Vmax e a relação VLVOT/Vmax apresentam os melhores valores de variabilidade e reprodutibilidade e assim constituem provavelmente a melhor ferramenta no diagnóstico e seguimento criterioso dos doentes com estenose valvular aórtica.info:eu-repo/semantics/publishedVersio
ICES. 2021. Working Group on Southern Horse Mackerel Anchovy and Sardine (WGHANSA).
The ICES Working Group on Southern horse mackerel, anchovy and sardine (WGHANSA) assessed the status of anchovy in Atlantic Iberian waters (ane.27.9a; western and southern components) and horse mackerel in Atlantic Iberian waters (hom.27.9a) in the May meeting and of anchovy in Bay of Biscay (ane.27.8), sardine in southern Celtic Seas and the English Channel (pil.27.7), sardine in Bay of Biscay (pil.27.8abd) and sardine in Cantabrian Sea and Atlantic Iberian waters (pil.27.8c9a) in the November meeting. In addition, to answer a special request from Portugal and Spain, in May the working group updated the assessment of sardine in Atlantic Iberian waters (pil.27.8c9a) based on the most recent data available and included as catch scenarios, the harvest control rule evaluated in the Workshop for the evaluation of the Iberian sardine harvest control rules (WKSARHCR 2021). Deviations from the stock annex caused by missing surveys and deteriorated catch data due to the Covid-19 were described and sensitivity analyses of their impact were provided whenever possibl
Gender equality in the information systems and tecnhonology fields: a comprehensive diagnosis at the school of engineering of the University of Minho
Gender equality in academia and science has been a central theme in several scientific studies around the world. Over the last few years, there has been an extensive literature production on the explicit and implicit processes that drive gender inequalities and make them persist over time. In contexts of increasing mobility, globalization and cultural change, it is urgent that science and education policies, defined in the context of Universities and their human resources (including teaching, non-teaching staff as well as students), recognize the existence of gender inequalities and promote effective measures for its eradication, in a collective and participatory approach. Despite the production of literature attesting the existence of gender inequalities in academia, which documents processes of segregation and discrimination that affect the various participants of the organization as well as a set of methodological proposals to overcome them, it has not proved sufficient to change the reality of practices in teaching and research institutions Since gender inequality is a transversal problem and holds implications for the University as a whole, and individually for the people that compose it, this study documents the initial measures implemented at Engineering School, as part of Project EQUAL_IST- Gender Equality Plan for Information Sciences and Technology Research Institutions, which is being carried out by teams in several European countries, and aims, mainly, to study and intervene in the advancement of gender equality in the area of Technology and Information systems.This work was partly funded by FCT –Fundação para a Ciência e Tecnologia within the Project Scope: "Project UID/CTM/00264/2019 of2C2T –Centro de Ciência e Tecnologia Têxtil,; “Project UID/CEC/00319/2019” and COMPETE: POCI-01-0145-FEDER-007560; project UID/CCI/00736/2013
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