Student engagement is a key factor in academic achievement and degree completion, though there is much debate about the operationalization and dimensionality of this construct. The goal of this paper is to describe the development of an psycho-educational oriented measure -the University Student Engagement Inventory (USEI). This measure draws on the conceptualization of engagement as a multidimensional construct, including cognitive, behavioural and emotional engagement. Participants were 609 Portuguese University students (67 % female) majoring in Social Sciences, Biological Sciences or Engineering and Exact Sciences. The content, construct and predictive validity, and reliability of the USEI were tested. The validated USEI was composed of 15 items, and supported the tri-factorial structure of student engagement. We documented evidence of adequate reliability, factorial, convergent and discriminant validities. USEI's concurrent validity, with the Utrecht Work Engagement Scale-Student Survey, and the predictive validity for self-reported academic achievement and intention to dropout from school were also observed.

Objectives To evaluate the accuracy and probabilities of different fetal ultrasound parameters to predict neonatal outcome in isolated congenital diaphragmatic hernia (CDH). Methods

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Background: Isolation measures used to contain epidemics generate social interaction restrictions and impose changes in routines of the public that increase negative psychological outcomes. Anxiety and depression are the most common symptoms. Objective: To evaluate the mental health of the Brazilian population during the SARs-CoV-2 pandemic and its relationship with demographic and health characteristics. Methods: Adults from all Brazilian States participated (n = 12,196; women: 69.8%, mean age = 35.2 years). The Depression, Anxiety and Stress Scale, and the Impact of Event Scale–revised were used (online survey). Data validity and reliability were verified by confirmatory factor analysis and ordinal alpha coefficient. The probability of presenting psychological symptoms was calculated by multiple logistic regression and odds ratio (OR) (0 = without symptoms, 1 = with mild, moderate, and severe levels of symptoms). Results: High prevalence of depression (61.3%), anxiety (44.2%), stress (50.8%), and psychological impact (54.9%) due to the isolation experienced from the pandemic was found. Younger individuals (OR = 1.58–3.58), those that felt unsafe (OR = 1.75–2.92), with a previous diagnosis of mental health (OR = 1.72–2.64) and/or had general health problems before the pandemic (OR = 1.17–1.51), who noticed changes in their mental state due to the pandemic context (OR = 2.53–9.07), and excessively exposed to the news (OR = 1.19–2.18) were at increased risk of developing symptoms. Women (OR = 1.35–1.65) and those with lower economic status (OR = 1.38–2.69) were more likely to develop psychological symptoms. Lower educational levels increased the likelihood of depressive (OR = 1.03–1.34) and intrusive symptoms (OR = 1.09–1.51). Conclusions: The pandemic and related factors can have a high impact on the mental health of the population. Demographic characteristics can influence the occurrence of psychological symptoms.

Objective: Evaluate the validity, reliability, and factorial invariance of the complete Portuguese version of the Oral Health Impact Profile (OHIP) and its short version . Methods: A total of 1,162 adults enrolled in the Faculty of Dentistry of Araraquara/UNESP participated in the study; 73.1% were women; and the mean age was 40.7 ± 16.3 yr. We conducted a confirmatory factor analysis, where χ 2 /df, comparative fit index, goodness of fit index, and root mean square error of approximation were used as indices of goodness of fit. The convergent validity was judged from the average variance extracted and the composite reliability, and the internal consistency was estimated by Cronbach standardized alpha. The stability of the models was evaluated by multigroup analysis in independent samples (test and validation) and between users and nonusers of dental prosthesis. Results: We found best-fitting models for the OHIP-14 and among dental prosthesis users. The convergent validity was below adequate values for the factors "functional limitation" and "physical pain" for the complete version and for the factors "functional limitation" and "psychological discomfort" for the OHIP-14. Values of composite reliability and internal consistency were below adequate in the OHIP-14 for the factors "functional limitation" and "psychological discomfort." We detected strong invariance between test and validation samples of the full version and weak invariance for OHIP-14. The models for users and nonusers of dental prosthesis were not invariant for both versions. Conclusion:The reduced version of the OHIP was parsimonious, reliable, and valid to capture the construct "impact of oral health on quality of life," which was more pronounced in prosthesis users.

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Among remarkable discoveries concerning propolis, such as antifungal, antiviral, and antioxidant activities, its anti-inflammatory, and mainly its antibacterial, properties deserve special attention when skin wound healing is concerned. Based on this and knowing the distinctive performance of bacterial (BC) membranes on wound healing, in this work it is proposed to demonstrate the potent antimicrobial activity and wound healing properties of a novel propolis containing biocellulose membrane. The obtained propolis/BC membrane was able to adsorb propolis not only on the surface, but also in its interstices demonstrated by scanning electron microscopy, X-ray diffraction, Fourier transform infrared (FT-IR) spectroscopy, and thermogravidimetric assays. Additionally, the polyphenolic compounds determination and the prominent antibacterial activity in the membrane are demonstrated to be dose dependent, supporting the possibility of obtaining propolis/BC membranes at the desired concentrations, taking into consideration its application and its skin residence time. Finally, it could be suggested that propolis/BC membrane may favor tissue repair in less time and more effectively in contaminated wounds.

RESUMO Objetivo: Estimar as características psicométricas da Escala de Depressão, Ansiedade e Estresse (DASS-21) para universitários e comparar as prevalências de depressão, ansiedade e estresse segundo o sexo. Métodos: Avaliou-se o ajustamento da DASS-21 aos dados por análise confirmatória utilizando os índices razão de qui-quadrado pelos graus de liberdade (χ2/gl), Comparative Fit Index (CFI), Tucker-Lewis Index (TLI) e Root Mean Square Error of Approximation (RMSEA). As prevalências de depressão, ansiedade e estresse foram calculadas e comparadas segundo o sexo. Resultados: Participaram 1.042 estudantes [idades entre 18 e 35 anos, com média de 21,13 anos (desvio-padrão = 2,81), 65,7% mulheres]. O ajustamento da DASS-21 à amostra foi adequado (χ2/gl = 5,83; CFI = 0,96; TLI = 0,97; RMSEA = 0,07), contudo o item 2 apresentou baixo peso fatorial, sendo, portanto, excluído (χ2/gl = 6,05; CFI = 0,98; TLI = 0,97; RMSEA = 0,07). Em relação ao grau de acometimento dos estudantes pela depressão, ansiedade e estresse, verificou-se que 4,7%, 1,7% e 4,5% dos estudantes apresentaram, respectivamente, escores moderados a extremamente severos. Não houve diferença significativa entre as prevalências dos estados emocionais avaliados segundo o sexo. Conclusão: A DASS-21 apresentou adequada validade e confiabilidade para amostra. A prevalência de depressão, ansiedade e estresse foi semelhante entre homens e mulheres, apontando para a necessidade de um olhar igualitário na investigação desses estados emocionais.