Repositório Comum
Entradas recentes
Positive health : approaching health from a psychological perspective of well-being
Publication . Wolff, Luciane; Castro, Elisa Kern de
Positive Health is a field of Positive Psychology that measures the biological, subjective, and functional state of health. The article aims to present a theoretical review of the subjective aspects of Positive Health, understanding well-being as one of its health assets and relating it to the knowledge of Health Psychology. The article initially reviews the Positive Psychology approach, followed by an in-depth look of the different theoretical models of well-being and their relevance to Positive Health. Finally, it integrates this knowledge with the Health Psychology approach. It is concluded that Positive Health is a field in broad development and studies should be encouraged to assess the direct and indirect effects of positive interventions for promoting people’s health.
Portuguese version of the Oral Frailty Index-8 : instrument validation study
Publication . Corrêa, Laura; Júdice, André; Scoz, Robson; Machado, Vanessa; Mendes, José João; Proença, Luís; Botelho, João; Ferreira, Luciano
Background: The concept of oral frailty has gained scientific and clinical relevance in recent years, and early detection can facilitate timely intervention to manage its progression. The Oral Frailty Index-8 (OFI-8) was developed to assess community-dwelling older adults at risk for oral frailty.
Objective: This study aims to investigate the psychometric validity of the OFI-8 in the Portuguese population, named the Portuguese version of the OFI-8 (OFI-8-PT), which may serve as a reference for future studies related to longevity and oral function.
Methods: This study included 2 main phases, involving patients aged 60 years or older, Portuguese speakers, and those who consented to participate in the study. First, the researchers translated and cross-culturally adapted the original questionnaire to make it suitable for native Portuguese speakers. The translated tool was then assessed for psychometric validation, which consisted of test-retest reliability, internal consistency, construct validity, and sex invariance measurement.
Results: A total of 159 older adults participated in the baseline survey, with almost equal numbers of male (n=79, 49.7%) and female participants (n=80, 50.3%). The OFI-8-PT demonstrated good reliability (Cronbach α=0.95) and construct validity (goodness-of-fit index=0.96; comparative fit index=0.85; and root mean square error of approximation=0.05, 90% CI 0.00-0.09). The study found sex invariance, indicating that the OFI-8-PT is equally valid for male and female participants, and the tested-retest reliability of the OFI-8-PT was good, indicating consistent results over time.
Conclusions:: The OFI-8-PT showed psychometric validity and good reliability to be used in the Portuguese population.
Perceção dos gestores sobre vantagens e desafios das empresas que adotam a economia circular no setor de construção civil em Portugal
Publication . Tomás, Eliane Carlota Manuel; Silva, Carlos António Pinheiro Francisco e
Este estudo qualitativo explora as perceções de gestores sobre adoção da economia circular em Portugal. Com base em 12 entrevistas semiestruturadas analisadas tematicamente com MAXQDA (Bardin 2010), os resultados revelam compreensões heterogéneas da economia circular – frequentemente reduzidas à gestão de resíduos. Os benefícios referidos incluem melhorias ambientais, poupanças de custos a longo prazo e ganhos reputacionais. As principais barreiras identificadas incluem custos iniciais (8,33%) das entrevistas, resistência cultural (41,67%), défice de competências (41,67%) e decisões dos clientes orientadas pelo preço (41,67%). O apoio do Estado, a formação profissional e o envolvimento da gestão de topo surgem como fatores críticos e facilitadores. O estudo contribui com evidência específica para o contexto português e oferece implicações práticas diferenciadas por dimensão empresarial, salientando a necessidade de políticas públicas integradas, métricas económico-financeiras e desenvolvimento de capacidades.
Pork meat composition and health : a review of the evidence
Publication . Vicente, Filipa; Pereira, Paula C.
Meat has been part of the human diet for centuries and it is a recognizable source of high-biologic-value protein and several micronutrients; however, its consumption has been associated with an increased risk of non-communicable diseases (e.g., cardiovascular diseases, cancer). These concerns are mostly related to red meat. However, meat composition is quite variable within species and meat cuts. The present study explores the composition of pork meat, and the differences among different pork meat cuts and it reviews the evidence on the influence of its consumption on health outcomes. Pork meat contributes to 30% of all meat consumed worldwide and it offers a distinct nutrient profile; it is rich in high-quality protein, B-complex vitamins, and essential minerals such as zinc and iron, though it contains moderate levels of saturated fat compared to beef. Additionally, research on sustainability points out advantages from pork meat consumption considering that it is a non-ruminant animal and is included in one of the five more sustainable dietary patterns. In what concerns the data on the influence of pork meat consumption on health outcomes, a few clinical studies have shown no harmful effects on cardiovascular risk factors, specifically blood lipids. Several arguments can justify that pork meat can be an option in a healthy and sustainable diet.
Polyhydroxyalkanoates : medical applications and potential for use in dentistry
Publication . Abdeladhim, Rim Ben; Reis, José Alexandre; Vieira, Ana Maria; Almeida, Catarina Dias de
Polyhydroxyalkanoates (PHAs) are promising biopolymers as an alternative to traditional synthetic polymers due to their biodegradability and biocompatibility. The PHA market is blooming in response to the growing demand for biodegradable and environmentally friendly plastics. These biopolyesters are produced and degraded by a variety of microorganisms, making them environmentally friendly, while offering benefits such as biocompatibility (when adequately processed) and biodegradability. Their versatility extends to various areas, from biomedicine to agriculture and composite materials, where they pave the way for significative innovations. In the field of regenerative medicine, some PHAs have key applications, namely in vascular grafts, oral tissue regeneration, and development of self-healing polymers. In addition, PHAs have the potential to be used in the creation of dental implant materials and dental medical devices. PHAs can also be used to encapsulate hydrophobic drugs, providing an approach for more targeted and effective treatments. To summarize, PHAs open new perspectives in the field of medicine by improving drug delivery and offering ecologically biocompatible solutions for medical devices. The aim of this review is to present the medical and dental applications of PHA, their advantages, disadvantages, and indications.