Assessment of Time Allocated to Pedestrian Crossing: A Contribution for a More Inclusive Lisbon

Introdução: Com o envelhecimento progressivo da população portuguesa, é fundamental que as condições de acessibilidade e segurança na via pública estejam adaptadas a este grupo etário. O objectivo deste estudo foi avaliar se o tempo atribuído à travessia de peões nas passadeiras semaforizadas entre o Hospital de Curry Cabral e os transportes públicos locais é suficiente para permitir a travessia dos idosos em segurança. Material e Métodos: Foram avaliados 100 doentes seguidos em consulta externa no Serviço de Medicina Física e de Reabilitação. Todos responderam a um questionário, à escala de confiança no equilíbrio específica da atividade e executaram o teste de marcha de 10 metros. Foram analisadas todas as passadeiras semaforizadas dos percursos de marcha entre o hospital e os transportes públicos locais, num total de 26 e calculada a velocidade de marcha necessária para realizar a travessia das passadeiras em segurança. Resultados: A média de idade dos doentes foi de 75 anos, sendo a maioria do género feminino (73%). Concluímos que todos os doentes conseguem atravessar em segurança 17 (65%) passadeiras, representando as restantes nove (35%) um obstáculo para a nossa amostra. Discussão: Se o valor de velocidade de marcha nas passadeiras estipulado na legislação para os cidadãos com mobilidade condicionada fosse devidamente aplicado, 99% da amostra teria conseguido atravessar as passadeiras em segurança. Conclusão: É fundamental que o valor de velocidade de marcha nas passadeiras estipulado na legislação seja aplicado, pois o seu incumprimento coloca em risco os utentes idosos do Hospital de Curry Cabral, aumentando a probabilidade de acidentes e o sentimento de insegurança na via pública.info:eu-repo/semantics/publishedVersio

Osteoporosis and Falls: Problems Overlooked by the Portuguese Medical Community

Introdução: A prevalência da osteoporose continua a aumentar, aumentando a morbimortalidade associada às fraturas osteoporóticas, na maioria resultantes de queda, sendo a fratura do fémur proximal a de maior impacto socioeconómico. O nosso objetivo foi caracterizar uma amostra da população hospitalar com fratura do fémur proximal quanto a medidas preventivas e terapêuticas da osteoporose e quedas. Material e Métodos: Realizámos um estudo transversal retrospetivo em mulheres com idade mínima de 65 anos e fratura recente do fémur proximal internadas num serviço de Ortopedia, durante um ano, através de questionário desenvolvido para o efeito e consulta do processo clínico. Resultados: Avaliámos 100 doentes, a maioria com fratura decorrente de queda, no domicílio, durante o dia e em piso regular; 76% das doentes tinha antecedentes de queda e 42% história prévia de fratura osteoporótica. Considerando os critérios para instituição terapêutica apenas 5,3% da amostra se encontrava medicada. Verificou-se a existência de uma associação estatisticamente significativa entre a ocorrência de quedas e as fraturas osteoporóticas bem como com a implementação de medidas de prevenção do risco de queda. Conclusão: os resultados corroboram a importância das quedas e das fraturas osteoporóticas na saúde. Tendo por base a literatura, os custos diretos estimados com esta amostra serão de 1,34 M€ no primeiro ano pós-fratura. Considerando a taxa mínima de cobertura terapêutica e o potencial de redução de risco fraturário estabelecido, conclui-se que um tratamento adequado poderia reduzir estes valores em, no mínimo, 40%-45%.info:eu-repo/semantics/publishedVersio

Development and validation of the Multi-dimensional University Research Workplace Inventory (MDURWI)

WOS:000454839600005This study describes the development and validation of an instrument aimed toward measuring organizational features of an academic research workplace. The question pool was developed based on data from a pilot study (N = 43). The survey was deployed to academic researchers in the field of higher education research worldwide (N = 850). An exploratory factor analysis conducted on 36 questions, followed by confirmatory factor analysis, which lead to a final pool of 27 questions in five subscales, one of which divided into three lower-order factors. The final model exhibited very good fit (X2/df = 2.561; CFI = 0.972; PCFI = 0.784; RMSEA = 0.043; P[rmsea ? 0.05] < 0.001; AIC = 891.018; BCC = 987.839) and psychometric properties, in the form of factorial, convergent, and discriminant validity, as well as reliability and sensitivity. Implications of this instrument for research and policymaking are discussed, as well as future research directions.info:eu-repo/semantics/acceptedVersio

Adjustment for time-invariant and time-varying confounders in ‘unexplained residuals’ models for longitudinal data within a causal framework and associated challenges

‘Unexplained residuals’ models have been used within lifecourse epidemiology to model an exposure measured longitudinally at several time points in relation to a distal outcome. It has been claimed that these models have several advantages, including: the ability to estimate multiple total causal effects in a single model, and additional insight into the effect on the outcome of greater-than-expected increases in the exposure compared to traditional regression methods. We evaluate these properties and prove mathematically how adjustment for confounding variables must be made within this modelling framework. Importantly, we explicitly place unexplained residual models in a causal framework using directed acyclic graphs. This allows for theoretical justification of appropriate confounder adjustment and provides a framework for extending our results to more complex scenarios than those examined in this paper. We also discuss several interpretational issues relating to unexplained residual models within a causal framework. We argue that unexplained residual models offer no additional insights compared to traditional regression methods, and, in fact, are more challenging to implement; moreover, they artificially reduce estimated standard errors. Consequently, we conclude that unexplained residual models, if used, must be implemented with great care

Genomic signatures of local adaptation reveal source-sink dynamics in a high gene flow fish species

Understanding source-sink dynamics is important for conservation management, particularly when climatic events alter species' distributions. Following a 2011 'marine heatwave' in Western Australia, we observed high recruitment of the endemic fisheries target species Choerodon rubescens, towards the cooler (southern) end of its distribution. Here, we use a genome wide set of 14 559 single-nucleotide polymorphisms (SNPs) to identify the likely source population for this recruitment event. Most loci (76%) showed low genetic divergence across the species' range, indicating high levels of gene flow and confirming previous findings using neutral microsatellite markers. However, a small proportion of loci showed strong patterns of differentiation and exhibited patterns of population structure consistent with local adaptation. Clustering analyses based on these outlier loci indicated that recruits at the southern end of C. rubescens' range originated 400 km to the north, at the centre of the species' range, where average temperatures are up to 3 °C warmer. Survival of these recruits may be low because they carry alleles adapted to an environment different to the one they now reside in, but their survival is key to establishing locally adapted populations at and beyond the range edge as water temperatures increase with climate change

The 16th Data Release of the Sloan Digital Sky Surveys: First Release from the APOGEE-2 Southern Survey and Full Release of eBOSS Spectra

This paper documents the 16th data release (DR16) from the Sloan Digital Sky Surveys (SDSS), the fourth and penultimate from the fourth phase (SDSS-IV). This is the first release of data from the Southern Hemisphere survey of the Apache Point Observatory Galactic Evolution Experiment 2 (APOGEE-2); new data from APOGEE-2 North are also included. DR16 is also notable as the final data release for the main cosmological program of the Extended Baryon Oscillation Spectroscopic Survey (eBOSS), and all raw and reduced spectra from that project are released here. DR16 also includes all the data from the Time Domain Spectroscopic Survey and new data from the SPectroscopic IDentification of ERosita Survey programs, both of which were co-observed on eBOSS plates. DR16 has no new data from the Mapping Nearby Galaxies at Apache Point Observatory (MaNGA) survey (or the MaNGA Stellar Library "MaStar"). We also preview future SDSS-V operations (due to start in 2020), and summarize plans for the final SDSS-IV data release (DR17)

A well-kept treasure at depth: precious red coral rediscovered in Atlantic deep coral gardens (SW Portugal) after 300 years

The highly valuable red coral Corallium rubrum is listed in several Mediterranean Conventions for species protection and management since the 1980s. Yet, the lack of data about its Atlantic distribution has hindered its protection there. This culminated in the recent discovery of poaching activities harvesting tens of kg of coral per day from deep rocky reefs off SW Portugal. Red coral was irregularly exploited in Portugal between the 1200s and 1700s, until the fishery collapsed. Its occurrence has not been reported for the last 300 years.info:eu-repo/semantics/publishedVersio

Comparative effectiveness and safety of non-vitamin K antagonists for atrial fibrillation in clinical practice: GLORIA-AF Registry

Background and purpose: Prospectively collected data comparing the safety and effectiveness of individual non-vitamin K antagonists (NOACs) are lacking. Our objective was to directly compare the effectiveness and safety of NOACs in patients with newly diagnosed atrial fibrillation (AF). Methods: In GLORIA-AF, a large, prospective, global registry program, consecutive patients with newly diagnosed AF were followed for 3&nbsp;years. The comparative analyses for (1) dabigatran vs rivaroxaban or apixaban and (2) rivaroxaban vs apixaban were performed on propensity score (PS)-matched patient sets. Proportional hazards regression was used to estimate hazard ratios (HRs) for outcomes of interest. Results: The GLORIA-AF Phase III registry enrolled 21,300 patients between January 2014 and December 2016. Of these, 3839 were prescribed dabigatran, 4015 rivaroxaban and 4505 apixaban, with median ages of 71.0, 71.0, and 73.0&nbsp;years, respectively. In the PS-matched set, the adjusted HRs and 95% confidence intervals (CIs) for dabigatran vs rivaroxaban were, for stroke: 1.27 (0.79–2.03), major bleeding 0.59 (0.40–0.88), myocardial infarction 0.68 (0.40–1.16), and all-cause death 0.86 (0.67–1.10). For the comparison of dabigatran vs apixaban, in the PS-matched set, the adjusted HRs were, for stroke 1.16 (0.76–1.78), myocardial infarction 0.84 (0.48–1.46), major bleeding 0.98 (0.63–1.52) and all-cause death 1.01 (0.79–1.29). For the comparison of rivaroxaban vs apixaban, in the PS-matched set, the adjusted HRs were, for stroke 0.78 (0.52–1.19), myocardial infarction 0.96 (0.63–1.45), major bleeding 1.54 (1.14–2.08), and all-cause death 0.97 (0.80–1.19). Conclusions: Patients treated with dabigatran had a 41% lower risk of major bleeding compared with rivaroxaban, but similar risks of stroke, MI, and death. Relative to apixaban, patients treated with dabigatran had similar risks of stroke, major bleeding, MI, and death. Rivaroxaban relative to apixaban had increased risk for major bleeding, but similar risks for stroke, MI, and death. Registration: URL: https://www.clinicaltrials.gov. Unique identifiers: NCT01468701, NCT01671007. Date of registration: September 2013