Department of Defense authorization for appropriations for fiscal years 1990 and 1991 : hearings before the Committee on Armed Services, United States Senate, One Hundred First Congress, first session, on S. 1085 ...

Item 1034-A, 1034-B (MF).

DEPRESSÃO, ANSIEDADE, ESTRESSE E QUALIDADE DE VIDA DE ESTUDANTES DE UNIVERSIDADES PÚBLICA E PRIVADA

Variáveis como depressão, ansiedade, estresse e qualidade de vida, oferecem indicativos de saúde e doença de jovens, estudantes em fase de formação profissional; é importante detectar sinais e sintomas leves ou graves, uma vez que representam quatro das dez principais causas de incapacidade no mundo. Assim, o presente estudo apresentou como objetivos: a) Caracterizar o perfil sócio demográfico dos estudantes universitários das duas instituições em estudo estudadas; b) Avaliar sintomas de depressão dos estudantes; c) Avaliar sinais de ansiedade e estresse dos estudantes; d) Avaliar a qualidade de vida geral dos estudantes; e) correlacionar as variáveis qualidade de vida, sinais e sintomas de ansiedade, depressão e estresse dos discentes d) correlacionar as variáveis qualidade de vida geral, sinais e sintomas de ansiedade, depressão dos discentes. Participaram da pesquisa 570 Universitários, 344 eram estudantes da Universidade Metodista de São Paulo e 226 da Universidade Federal do Amazonas, dos gêneros feminino e masculino, entre 16 e 55 anos, estudantes de diferentes cursos universitários da área da saúde e humanas. Para coleta de dados foram utilizados os seguintes Instrumentos: questionário de dados socioeconômicos e culturais; WHOQOL Breve Avaliação da Qualidade de Vida composta por 26 questões e EADS Escala de Depressão, Ansiedade e Estresse composta por 21 itens; .Os instrumentos, autoaplicáveis, foram feitos aplicados em ambiente acadêmico de sala de aula, com a devida autorização do professor e direção, informo que o projeto foi e aprovação pelo do Comitê de Ética (Plataforma Brasil) das respectivas universidades em questão. Os dados foram avaliados estatisticamente com auxílio do Programa SPSS versão 2.0 para Windows. Os resultados mostraram que a maioria da amostra é do curso de Psicologia, Gestão em Recursos Humanos e Pedagogia (39%), sendo do 1º e 4º(32%) anos, a escolha do curso foi 1ºopção (66%), mora com familiar (76,9%) e não mudou de residência para estudar na Universidade (83,3%). Os resultados revelaram que o melhor nível de QV encontra-se nos domínios Psicológico e Social da Instituição UFAM localizada no Estado do Amazonas. Os domínios mais afetados, ou seja, aquele, em que os universitários encontram mais prejuízo é no que se referem ao domínio Físico e Meio Ambiente de ambas as Instituições estudadas. Com relação ao EADS, pode se observar que a maior média apresentada refere-se ao fator estresse das duas Instituições estudadas, sendo representado pelo resultado de 15.00 (UMESP) e 12.70 (UFAM) e a média menor foi no fator ansiedade UMESP (7,51). Assim sendo, observa-se que os estudantes obtiveram um grau leve de estresse, depressão e ansiedade em ambas instituições estudadas. Analisando e ao correlacionar os domínios de qualidade de vida e as variáveis ansiedade, depressão e estresse, observou-se uma correlação significativa negativa em todas as variáveis, sendo maior entre depressão e domínios psicológico e ambiental,.Isso significa que quanto maior a depressão, menor a qualidade de vida nos domínios psicológico e ambiental. A partir dos resultados, sugerem-se estudos mais aprofundados.

Artefactual structure from least squares multidimensional scaling

We consider the problem of illusory or artefactual structure from the visualisation of high-dimensional structureless data. In particular we examine the role of the distance metric in the use of topographic mappings based on the statistical field of multidimensional scaling. We show that the use of a squared Euclidean metric (i.e. the SSTRESs measure) gives rise to an annular structure when the input data is drawn from a high-dimensional isotropic distribution, and we provide a theoretical justification for this observation.

Response-based segmentation using Finite Mixture Partial Least Squares: theoretical foundations and an application to American Customer Satisfaction Index Data

When applying multivariate analysis techniques in information systems and social science disciplines, such as management information systems (MIS) and marketing, the assumption that the empirical data originate from a single homogeneous population is often unrealistic. When applying a causal modeling approach, such as partial least squares (PLS) path modeling, segmentation is a key issue in coping with the problem of heterogeneity in estimated cause-and-effect relationships. This chapter presents a new PLS path modeling approach which classifies units on the basis of the heterogeneity of the estimates in the inner model. If unobserved heterogeneity significantly affects the estimated path model relationships on the aggregate data level, the methodology will allow homogenous groups of observations to be created that exhibit distinctive path model estimates. The approach will, thus, provide differentiated analytical outcomes that permit more precise interpretations of each segment formed. An application on a large data set in an example of the American customer satisfaction index (ACSI) substantiates the methodology’s effectiveness in evaluating PLS path modeling results.

The valuation of travel time savings in least developed countries:theoretical and empirical challenges and results from a field study

In developed countries travel time savings can account for as much as 80% of the overall benefits arising from transport infrastructure and service improvements. In developing countries they are generally ignored in transport project appraisals, notwithstanding their importance. One of the reasons for ignoring these benefits in the developing countries is that there is insufficient empirical evidence to support the conventional models for valuing travel time where work patterns, particularly of the poor, are diverse and it is difficult to distinguish between work and non-work activities. The exclusion of time saving benefits may lead to a bias against investment decisions that benefit the poor and understate the poverty reduction potential of transport investments in Least Developed Countries (LDCs). This is because the poor undertake most travel and transport by walking and headloading on local roads, tracks and paths and improvements of local infrastructure and services bring large time saving benefits for them through modal shifts. The paper reports on an empirical study to develop a methodology for valuing rural travel time savings in the LDCs. Apart from identifying the theoretical and empirical issues in valuing travel time savings in the LDCs, the paper presents and discusses the results of an analysis of data from Bangladesh. Some of the study findings challenge the conventional wisdom concerning the time saving values. The Bangladesh study suggests that the western concept of dividing travel time savings into working and non-working time savings is broadly valid in the developing country context. The study validates the use of preference methods in valuing non-working time saving values. However, stated preference (SP) method is more appropriate than revealed preference (RP) method.

Quantification of hydroxycinnamic acids and lignin in perennial forage and energy grasses by Fourier-transform infrared spectroscopy and partial least squares regression

Levels of lignin and hydroxycinnamic acid wall components in three genera of forage grasses (Lolium,Festuca and Dactylis) have been accurately predicted by Fourier-transform infrared spectroscopy using partial least squares models correlated to analytical measurements. Different models were derived that predicted the concentrations of acid detergent lignin, total hydroxycinnamic acids, total ferulate monomers plus dimers, p-coumarate and ferulate dimers in independent spectral test data from methanol extracted samples of perennial forage grass with accuracies of 92.8%, 86.5%, 86.1%, 59.7% and 84.7% respectively, and analysis of model projection scores showed that the models relied generally on spectral features that are known absorptions of these compounds. Acid detergent lignin was predicted in samples of two species of energy grass, (Phalaris arundinacea and Pancium virgatum) with an accuracy of 84.5%.

The value of time in least developed countries:the African studies : final report

This is a report on a study designed to test the applicability of conventional Stated Preference and Revealed Preference models for valuing the time savings of rural travellers in least developed countries and to develop and demonstrate a robust methodology for estimating values of travel time savings which could be used in developing countries.

How to manual:the valuation of rural travel time savings in least developed countries (LDCs)

The manual is designed to bring out issues that are relevant in the valuation of rural travel time savings in Least Developed Countries (LDCs). It should also be relevant for other developing countries which do not have LDC status but have rural economy features typical of low income developing countries. The manual elaborates step-by-step procedures on how to design and execute studies to estimate the value of time (VoT) savings of rural travellers.

Paths of the least resistance:understanding how motives form in international retail joint venturing

Developing the premise that strategies are forged through an ongoing mutual process of developing motives and responses to multiple degrees of resistance, this paper examines the motives underpinning the adoption of joint venture strategies using empirical details from four British retail firms. The findings point to multiple motives forming from multiple paths of resistance in the foreign market, but also among individuals within the firm as well as across the whole international programme. Moreover, this study reveals a paradoxical tension between management's operational impatience to immediately ground the retail format and an overall wariness or gloomy perceptions associated with adopting an international retail joint venture. The paper therefore concludes that the motives and barriers are manifestations of the struggles involved in internationalising retail operations.