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Estimating Effects of Poverty on the Survival of HIV Patients on ART and Food Supplementation in Rural Haiti: A Comparative Evaluation of Socio-Economic Indicators
Background: Because economic conditions are both a risk factor for disease and may themselves be objectives for health delivery interventions, monitoring changes in economic outcomes has become a routine priority for health and development efforts. However, the lack of formal commerce in poor agrarian communities creates challenges for measuring economic status. Data on household finances, such as income, are ideal but are time-consuming, costly, and less reliable, whereas proxy measures of wealth such as indices of durable assets are easier to measure but relatively coarse and are less sensitive to rapid changes in underlying drivers.
Methods: We used data from a cohort of 528 people living with HIV/AIDS (PLHA) enrolled in a food intervention study on household demographics, agricultural production, cash income, in-kind income, household durable assets and health status, including CD4 count. We created a household economic index using principal components analysis (PCA) and compared it with three other economic indicators generated from the data (income, expenditures, poverty score). Through multivariate logistic regression analysis we evaluated the effect of the economic metric on probability of survival within the first year of study.
Results: Socioeconomic status determined by PCA of durable assets, weighted by the square root of the household size, was the only consistently significant economic predictor of probability of death. It remained significant even after controlling for direct health indicators such as CD4 count. There was no significant correlation between CD4 count and the economic indicators, which may be attributable to uniform access to ART among study participants.
Conclusion: Among people who have HIV and are all enrolled in ART and food programs, household socioeconomic status is an important predictor of mortality rates, even after controlling for direct health measurements such as CD4 count and other health-related covariates. The SES indicator from PCA is also a simple metric to estimate. The study underscores that poverty is a social determinant of mortality even in the context of equal access to health services, and is suggestive of the importance of poverty alleviation activities as an important supplement to clinical interventions
Genetic parameters of french beef breeds used in crossbreeding for young bull production. II. – Slaughter performance
Two sets of slaughter data at constant weight of 3098 and 699 crossbred young bulls from 199 and 42 sires of different French beef breeds, tested in 2 stations, were used to estimate the genetic parameters of carcass criteria (carcass yield, composition, morphology and meat quality). Composition criteria included fattening scores and fat and muscle contents estimated by dissection of the 11th rib. Carcass morphology was estimated by carcass length, beef conformation criteria (fleshiness score, thigh compactness) and by rib eye area. Meat quality was measured on the longissimus dorsi muscle (shearing force, pH and water loss). Genetic parameters were computed from paternal and residual components of variances and covariances estimated in mixed models by HENDERSON'S method 3. Only dressing percentage showed non-homogeneous coefficients of heritability between the 2 data sets : .27 and .69. Mean coefficients of heritability were .27 for fattening scores, .27 for beef conformation criteria and .51 for carcass length. Coefficients of heritability were .54 and .50 for carcass fat and muscle contents, .33 for rib eye area, .30 for shearing force, .11 for pH and .08 for water loss. The genetic coefficients of correlation were quite homogeneous between the 2 files for some groups of variables. There were positive genetic relationships between live fleshiness score and beef conformation criteria of the carcass and between all these criteria and dressing percentage. Growth rate during fattening was slightly opposed to these criteria of beef conformation and yield. While in both data sets fatness developed later in animals with greater skeletal development and higher birth weight, genetic correlations between carcass composition and the other variables were different between the 2 sets. However it can be concluded that while the simultaneous improvement of growth potential and carcass beef conformation does not theoreticaly require evaluating slaughtered progeny, it should be done to limit the probable increase of fatness precocity following such selection.Deux fichiers de résultats d’abattage à poids constant de 3 098 et 699 taurillons croisés, descendants de 199 et 42 pères de différentes races à viande françaises et contrôlés dans 2 stations, ont été utilisés pour estimer les paramètres génétiques des performances d’abattage (rendement, composition et morphologie de la carcasse, qualité de la viande). La composition de la carcasse est analysée à partir des notes d’état d’engraissement et des teneurs en gras et en muscle estimées à partir de la dissection de la 11e côte. La morphologie de la carcasse est appréhendée par sa longueur et par des critères de conformation bouchère (note de charnure, compacité de la cuisse et de la surface du muscle long dorsal). Sur ce muscle des mesures de qualité de la viande ont également été effectuées (force de cisaillement, pH, perte en eau). Les paramètres génétiques ont été calculés à partir des composantes paternelles et résiduelles des variances et covariances, estimées dans des modèles mixtes par la méthode 3 d’HENDERSON. Seul le rendement ne présente pas de coefficient d’héritabilité homogène entre les 2 fichiers : 0,27 et 0,69. Les coefficients d’héritabilité moyens sont de 0,27 pour les notes d’état d’engraissement, 0,27 pour les critères de conformation bouchère, 0,51 pour la longueur de la carcasse. Les coefficients d’héritabilité sont de 0,54 et 0,50 pour les teneurs en gras et en muscle de la carcasse, 0,33 pour la surface du muscle long dorsal, 0,30 pour la force de cisaillement, 0,11 pour le pH et 0,08 pour la perte en eau. Les coefficients de corrélation génétique sont assez homogènes entre les 2 fichiers pour certains groupes de variables. Il apparaît ainsi des liaisons génétiques positives marquées entre le pointage de la charnure en vif et les critères de conformation bouchère de la carcasse et entre tous ces critères et le rendement à l’abattage. La vitesse de croissance pendant l’engraissement est légèrement opposée à ces critères de conformation bouchère et de rendement. Alors que dans les 2 fichiers les dépôts adipeux ont un développement plus tardif chez les animaux à grand développement squelettique et poids de naissance élevé, les corrélations génétiques entre la composition des carcasses et les autres variables sont différentes entre les 2 fichiers. Toutefois à la vue de ces résultats il est possible de conclure que si l’amélioration simultanée du potentiel de croissance et de la conformation bouchère de la carcasse ne nécessite théoriquement pas la réalisation d’un contrôle sur descendants abattus, par contre celui-ci s’avère nécessaire pour limiter l’augmentation prévisible de la précocité des dépôts adipeux à la suite d’une telle sélection
Genetic parameters of french beef breeds used in crossbreeding for young bull production II. - Slaughter performance
Alien Registration- Renand, Olivette (Lewiston, Androscoggin County)
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Estimation of genetic parameters of preweaning performance in the French Limousin cattle breed
Cultura Gerencial Chinesa Versus Cultura Ocidental
As China is believed to be the market of the twenty-first century, entering China is not an option but a strategic requirement for many organizations. However, numerous Western managers who are well equipped with technical background know almost nothing about the pioneers who are reshaping the world's second largest economy. Consequently, this cross-sectional analysis explores the managerial implication of the Chinese dialectic logic vs. Western formal logic, particularistic Chinese culture vs. universalistic Western culture. Then it investigates the Chinese socialization vs. Western technical expertise and completes the analysis on the Chinese vs. American pattern of management development including a comparison of their respective MBA.Para as empresas, entrar na China, o Mercado do século 21, não é mais uma opção e sim uma estratégia necessária, contudo os gerentes ocidentais conhecem pouco sobre os gerentes chineses. Esse artigo propõe explorar as divergências gerenciais através de um estudo cross-seccional que combina os diversos conceitos que identificam com mais clareza as características de cada cultura dos negócios: a lógica dialética chinesa versus a lógica formal ocidental, a cultura chinesa particularista versus a cultura ocidental universalista. Em seguida, o estudo investiga a socialização chinesa versus a perícia técnica ocidental e acaba por comparar o modelo de desenvolvimento dos gerentes chineses com o modelo norte-americano, também através das diferenças qualitativas dos MBAs de cada um
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