ABSTRACT
We address the hypothesis that at early and late lactation milk presents low ethanol stability due to high acidity and ionic calcium values. Our aim was to evaluate the functional traits of milk (milk ethanol stability: MES, acidity and ionic calcium: iCa) according to lactation stage in different genetic groups. Raw milk samples were collected from Jersey (n = 271), Holstein (n = 248) and Jersey × Holstein crossbred cows (n = 82), raised on five commercial farms located in the state of Paraná, Brazil. Milk composition, somatic cell count (SCC), milk urea nitrogen (MUN), MES, pH, acidity and iCa were determined. Days in milk (DIM) were categorized into four classes: 1-60, 61-150, 151-305 and over 305 DIM. Data were submitted to analysis of variance. Fixed and random effects were incorporated into the model, in a repeated measures in time arrangement using the mixed models methodology. Significant interactions between DIM class and genetic groups were detected. The comparison between each combination of genetic group and DIM class showed that at the beginning of lactation, Holsteins produced milk with higher MES than Jersey and crossbreds. At 105-305 DIM Holstein milk presented higher MES than Jersey, while beyond 305 DIM Holstein milk showed higher MES than crossbred cows. At the beginning of lactation acidity was higher in Holstein milk and crossbreds compared with Jersey, while acidity was lower in Holstein milk compared with Jersey and crossbreds in the other lactation stages. Ionic calcium was highest after lactation peak for Holstein, but did not vary between lactation stages for Jersey and crossbreds. Functional characteristics of bovine raw milk such as MES, iCa and acidity varied between lactation stages in a distinct manner according to genetic groups. Early and end lactation stages are challenging in terms of low stability, especially for Jersey and crossbreds.
ABSTRACT
Este estudo tem como objetivo avaliar se existe correlação entre conflito trabalho-família e suporte social percebido em Agentes Comunitários de Saúde (ACS). Ademais, este é um estudo transversal e correlacional com delineamento quantitativo, em que foram ocupadas a Escala Multidimensional de Conflito Trabalho-Família (EMCT-F) e a Escala de Percepção de Suporte Social (2-Way SSS). Os participantes da pesquisa foram 139 ACS atuantes em quatro municípios do interior do Rio Grande do Sul. Para a análise dos dados, foram utilizadas a Estatística Descritiva, Estatística Paramétrica e Correlação de Pearson. Os resultados entre as correlações das escalas foram estatisticamente significativos (p<0,05) nos fatores dar suporte emocional e conflito família-trabalho, e receber suporte instrumental e conflito família trabalho. Assim, o estudo permitiu compreender melhor a relação entre as variáveis destacadas, sendo que esse entendimento poderá subsidiar intervenções baseadas na Psicologia Positiva para os ACS.(AU)
This study aimed to assess whether there is a correlation between work-family conflict and perceived social support in Community Health Agents (CHA). Moreover, this is a cross-sectional and correlational study with quantitative design, in which the Multidimensional Work-Family Conflict Scale (MWFCS) and the 2-Way Social Support Scale (2-Way SSS) were used. The participants in this study were 139 CHA workers in four municipalities in the interior of Rio Grande do Sul. Descriptive Statistics, Parametric Statistics, and Pearson Correlation were used to analyze the data. The results between the correlations of the scales were statistically significant (p<0.05) in the factors give emotional support and work family conflict, and receive instrumental support and work family conflict. Therefore, the study allowed us to better understand the relationship between the variables highlighted, and this understanding may support interventions based on Positive Psychology for the CHA.(AU)
El presente estudio tuvo como objetivo evaluar si existe correlación entre conflicto trabajo-familia y apoyo social percibido en trabajadores Agentes Comunitarios de Salud. Además, este es un estudio transversal y correlacional con delineamiento cuantitativo, en que fueron empleadas la Escala Multidimensional de Conflicto Trabajo-Familia (EMCT-F) y la Escala de Percepción de Suporte Social (2-Way SSS). Los participantes de este estudio fueron 139 trabajadores que actúan como agentes comunitarios de salud (ACS) en cuatro municipios del interior de Rio Grande do Sul. Para el análisis de los datos fueron empleadas la Estadística Descriptiva, Estadística Paramétrica y Correlación de Pearson. Los resultados entre las correlaciones de las escalas fueron estadísticamente significativos (p<0,05) en los factores dar apoyo emocional y conflicto familia trabajo y recibir apoyo instrumental y conflicto familia trabajo. Por tanto, el estudio permitió comprender mejor la relación entre las variables destacadas, siendo que ese entendimiento podrá subsidiar intervenciones basadas en la Psicología Positiva para los ACS.(AU)
Subject(s)
Humans , Male , Female , Adult , Middle Aged , Aged , Young Adult , Primary Health Care , Professional-Family Relations , Social Support , Work , Occupational Health , Community Health Workers , Family Conflict , Primary Prevention , Psychology , Quality of Life , Burnout, Professional , Mental Health , Conflict, Psychological , Psychosocial Support Systems , Psychology, Positive , Multidimensional Scaling Analysis , Psychological Well-Being , Health Promotion , Occupational GroupsABSTRACT
Abstract The present article aims to propose a theoretical discussion regarding the role of lying based upon the Evolutionary Psychology perspective by shedding a new light on the main studies conducted in this area. In order to do so, this article addresses the phylogenies and ontogenies of the capability to lie, both suggesting that the rise of lying as a pro-social deed is intimately related with Homo sapiens incredibly broad and complex communication skills. Like so, the paper continues on expatiating on the underlying cognitive and neuronal mechanisms of lying and lying recognition, as well as the differences amongst genders concerning the ability to recognize deceit. Broadly, the present theoretic study may elucidate the current state of knowledge regarding the topic, thus signaling necessary and more promising paths for future studies to follow with the purpose of contributing to fields where the act of uttering lies is highly present, such as the judicial context.
Resumo O presente artigo tem por objetivo propor uma discussão teórica sobre o papel da mentira a partir da perspectiva da Psicologia Evolucionista, trazendo uma nova luz sobre os principais estudos realizados nessa área. Para tanto, este artigo aborda as filogenias e ontogenias da capacidade de mentir, ambas sugerindo que a ascensão da mentira como ação pró-social está intimamente relacionada às habilidades de comunicação incrivelmente amplas e complexas do Homo sapiens. Assim, o artigo discute os mecanismos cognitivos e neuronais subjacentes ao reconhecimento de mentiras, bem como as diferenças entre os gêneros em relação à capacidade de reconhecer o engano. Em linhas gerais, o presente estudo teórico pode elucidar o estado atual do conhecimento sobre o tema, sinalizando percursos necessários e mais promissores para futuros estudos, com o objetivo de contribuir para campos onde o ato de proferir mentiras está muito presente, como o contexto judiciário.
Resumen El presente artículo tiene como objetivo proponer una discusión teórica sobre el papel de la mentira a luz de la Psicología Evolucionista a partir de los principales estudios desarrollados en esta área. El artículo discurre sobre la filogénesis y la ontogénesis de la capacidad de mentir, discutiendo los mecanismos que viabilizan la ocurrencia de la mentira en la especie humana. El trabajo sugiere que el desarrollo de la mentira como práctica pro-social está íntimamente relacionado con la vasta capacidad de comunicación del Homo sapiens, discurriendo sobre los mecanismos cognitivos y neurales subyacentes, así como la diferencia entre géneros en lo que se refiere al reconocimiento del engaño. En general, el presente estudio teórico puede elucidar el estado actual de conocimiento sobre el asunto, indicando caminos necesarios y más prometedores para nuevos trabajos, a fin de colaborar para campos de actuación donde el acto de proferir mentiras se hace más presente, como, por ejemplo, el contexto judicial.