Preditores de bem-estar e qualidade de vida em homens submetidos à prostatectomia radical: estudo longitudinal

Objective: to identify socio-demographic, clinical and psychological predictors of well-being and quality of life in men who underwent radical prostatectomy, in a 360-day follow-up. Method: longitudinal study with 120 men who underwent radical prostatectomy. Questionnaires were used for characterization and clinical evaluation of the participant, as well as the instruments Visual Analog Scale for Pain, The Ways of Coping Questionnaire, Hospital Depression and Anxiety Scale, Satisfaction with Social Support Scale, Marital Satisfaction Scale, Subjective Well-Being Scale and Expanded Prostate Cancer Index. For data analysis, the linear mixed-effects model was used. Results: the socio-demographic factors age and race were not predictors of the dependent variables; time of surgery, problem-focused coping, and anxiety were predictors of subjective well-being; pain, anxiety and depression were negative predictors of quality of life; emotion-focused coping was a positive predictor. Marital dissatisfaction was a predictor of both variables. Conclusion: predictor variables found were different from the literature: desire for changes in marital relationship presented a positive association with quality of life and well-being; emotion-focused coping was a predictor of quality of life; and anxiety was a predictor of subjective well-being.Objetivo: identificar fatores preditores sociodemográficos, clínicos e psicológicos para o bem-estar e a qualidade de vida de homens submetidos à prostatectomia radical, em seguimento de 360 dias. Método: trata-se de um estudo longitudinal, com 120 homens submetidos à prostatectomia radical. Foram utilizados questionários para caracterização e avaliação clínica do participante, bem como os instrumentos Escala Visual Analógica de Dor, Inventário de Estratégias de Coping, Escala Hospitalar de Ansiedade e Depressão, Escala de Satisfação com o Suporte Social, Escala de Satisfação Conjugal, Escala de Bem-estar Subjetivo e o Expanded Prostate Cancer Index. Para análise dos dados, utilizou-se o modelo linear de efeitos mistos. Resultados: fatores sociodemográficos idade e raça não se mostraram preditores das variáveis dependentes; tempo de cirurgia, enfrentamento focado no problema e ansiedade foram preditores para bem-estar subjetivo; dor, ansiedade e depressão foram preditores negativos de qualidade de vida; estratégia de enfrentamento focado na emoção, positivo. A não satisfação conjugal foi preditora para ambas variáveis. Conclusões: foram identificados fatores preditores distintos da literatura: desejo de mudança nos níveis de satisfação conjugal apresentou relação positiva com qualidade de vida e bem-estar; modo de enfrentamento focado na emoção foi preditor de qualidade de vida; e ansiedade foi preditor de bem-estar subjetivo.Objetivo: identificar factores predictores sociodemográficos, clínicos y psicológicos para el bienestar y la calidad de vida de hombres sometidos a prostatectomía radical, en seguimiento de 360 días. Método: se trata de un estudio longitudinal, realizado entre 120 hombres sometidos a prostatectomía radical. Se utilizaron cuestionarios para caracterización y evaluación clínica del participante, así como los instrumentos Escala Visual Analógica de Dolor, Inventario de Estrategias de Afrontamiento, Escala Hospitalaria de Ansiedad y Depresión, Escala de Satisfacción con el Soporte Social, Escala de Satisfacción Marital, Escala de Bienestar Subjetivo y el Índice de Cáncer de Próstata Ampliado. Se utilizó el modelo lineal de efectos mixtos para el análisis de los datos. Resultados: los factores sociodemográficos tales como edad y raza no se mostraron predictores de las variables dependientes; tiempo de cirugía, enfrentamiento enfocado en el problema y en la ansiedad fueron predictores para el bienestar subjetivo; dolor, ansiedad y depresión fueron predictores negativos de calidad de vida; estrategia de enfrentamiento enfocado en la emoción, positivo. La no satisfacción marital fue predictora para ambas variables. Conclusiones: se identificaron factores predictores distintos de la literatura: el deseo de cambio en los niveles de satisfacción marital presentó una relación positiva con la calidad de vida y el bienestar; modo de enfrentamiento enfocado en la emoción fue predictor de calidad de vida; y ansiedad fue predictor de bienestar subjetivo

Supplement levels and functional oils to replace virginiamycin for young bulls during early dry season on grasslands and finishing phase in feedlot systems

Aim of study: To assess the effects of replacing virginiamycin (VM) by functional oils (FO) from castor beans and cashew nut on beef cattle system during the early dry season (Experiment I) and during the finishing phase were evaluated the historical effect, keeping the treatments and methods intact (Experiment II).Area of study: These experiments were conducted at the Forage Crops and Grasslands section of São Paulo State University, “Julio de Mesquita Filho” (Unesp–Jaboticabal, São Paulo, Brazil).Material and methods: Two supplementation levels combined with two additives (four treatments in total) were evaluated: LSVM, low supplementation (0.3% body weight [BW]) with VM; LSFO, low supplementation (0.3% BW) with FO, HSVM, high supplementation (0.6% BW) with VM, and HSFO, high supplementation (0.6% BW) with FO. In both experiments, the experimental design was completely randomized with a 2 × 2 factorial arrangement (supplementation levels × additives).Main results: In Exp. I, the additive effect of VM provided greater average daily gain (ADG, p=0.02), higher supplementation level resulted in higher ADG (p=0.04) and the greatest crude protein apparent digestibility (p=0.002). However, no effects were observed between supplementation levels, additives, and interactions (p≥0.11) on voluntary intake and ruminal parameters. In Exp. II, LSVM treatment resulted in lower dry matter intake (p=0.04). Animals maintained on LSFO during the early dry season exhibited lower carcass yield (p=0.004).Research highlights: FO can be used to replace VM in beef cattle diet during the finishing phase in the feedlot without altering animal performance

Polystyrene cellulose fiber composites: effect of the processing conditions on mechanical and dynamic mechanical properties

ABSTRACT The usage of natural fibers on the composites development has grown rapidly in the recent years due to the fibers plentiful availability, renewable source, low density and biodegradability. However, there are some drawbacks, for instance, the fiber dispersion on a polyolefin matrix. In this work, the influence of processing speed on the mechanical and dynamic mechanical properties of polystyrene (PS) filled with cellulose fiber composites was investigated. The composites were processed on a twin-screw co-rotating extruder, using screw speeds of 200 rpm, 400 rpm and 600 rpm. The dynamic mechanical properties and the mechanical properties were investigated as a function of fiber content. The composites processed on a screw speed of 400 rpm had presented an increase on flexural and impact strength, compared to the composites processed at 200 rpm. The flexural and storage modulus had increased when increasing the fiber content, as well as increasing the processing speed. The greater fiber dispersion obtained at a screw speed of 400 rpm hinders the agglomeration arrangement and distributes the fibers more equally on the matrix. The increase on processing speed probably generates a fiber size reduction, increasing the fiber superficial area and generating a greater contact with the matrix as well. Therefore, the efforts transference of matrix to fibers is improved, originating an increase on the evaluated properties