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Substantial Similarity (substantial + similarity)

Distribution by Scientific Domains

Psychology	50%

Selected Abstracts

Peer Group Socialization of Homophobic Attitudes and Behavior During Adolescence

CHILD DEVELOPMENT, Issue 6 2007
V. Paul Poteat
A social developmental framework was applied to test for the socialization of homophobic attitudes and behavior within adolescent peer groups (Grades 7,11; aged 12,17 years). Substantial similarity within and differences across groups were documented. Multilevel models identified a group socializing contextual effect, predicting homophobic attitudes and behavior of individuals within the group 8 months later, even after controlling for the predictive effect of individuals' own previously reported attitudes and behavior. Several group characteristics moderated the extent to which individuals' previously reported attitudes predicted later attitudes. Findings indicate the need to integrate the concurrent assessment of individual and social factors to inform the construction of more comprehensive models of how prejudiced attitudes and behaviors develop and are perpetuated. [source]

Transcriptional signatures in response to wheat germ agglutinin and starvation in Drosophila melanogaster larval midgut

INSECT MOLECULAR BIOLOGY, Issue 1 2009
H.-M. Li
Abstract One function of plant lectins such as wheat germ agglutinin is to serve as defences against herbivorous insects. The midgut is one critical site affected by dietary lectins. We observed marked cellular, structural and gene expression changes in the midguts of Drosophila melanogaster third instar larvae that were fed wheat germ agglutinin. Some of these changes were similar to those observed in the midguts of starved D. melanogaster. Dietary wheat germ agglutinin caused shortening, branching, swelling, distortion and in some cases disintegration of the midgut microvilli. Starvation was accompanied primarily by shortening of the microvilli. Microarray analyses revealed that dietary wheat germ agglutinin evoked differential expression of 61 transcripts; seven of these were also differentially expressed in starved D. melanogaster. The differentially transcribed gene clusters in wheat germ agglutinin-fed larvae were associated with (1) cytoskeleton organization; (2) digestive enzymes; (3) detoxification reactions; and (4) energy metabolism. Four possible transcription factor binding motifs were associated with the differentially expressed genes. One of these exhibited substantial similarity to MyoD, a transcription factor binding motif associated with cellular structures in mammals. These results are consistent with the hypothesis that wheat germ agglutinin caused a starvation-like effect and structural changes of midgut cells of D. melanogaster third-instar larvae. [source]

Dynamical versus statistical downscaling methods for ocean wave heights

INTERNATIONAL JOURNAL OF CLIMATOLOGY, Issue 3 2010
Xiaolan L. Wang
Abstract In this study, dynamical and statistical downscaling methods for estimating seasonal statistics of significant wave heights (SWH) were intercompared, with the downscaling results being evaluated against the ERA40 wave data in terms of climatological characteristics and interannual variability. It was also shown that biases in climate-model-simulated climate and variability of the atmospheric circulation (or predictors in general) can result in large biases in the estimated climate and variability of SWH (or the predictand in general), and that such biases can be effectively diminished by using standardized predictor quantities in statistical downscaling models. In dynamical downscaling, however, model variability biases remain to be dealt with, whereas the effects of model climate biases can be reduced to some extent by replacing the climate-model-simulated wind climate with the observed one. Therefore, the dynamical approach was found to be not as good as the statistical methods in terms of reproducing the observed climate and interannual variability of the predictand, although it bears substantial similarity to the statistical methods in terms of projected possible future changes. Also, it was shown that the observed interannual variability of seasonal statistics (including extremes) can be better reproduced by using 12-hourly, rather than seasonal, data in statistical downscaling. This stresses the importance of availability of higher-resolution data from climate model outputs. Nevertheless, a non-stationary extreme value model with covariates was found to be the best in reproducing the observed climate of extremes. All the statistical downscaling methods and the intercomparison results are applicable to other climate variables (not limited to ocean wave heights). Copyright © 2009 Crown in the right of Canada. Published by John Wiley & Sons, Ltd. [source]

The Effects of Nations and Organisations on Work Value Importance: A Cross-Cultural Investigation

APPLIED PSYCHOLOGY, Issue 3 2007
Keith Hattrup
This research examined similarities and differences in the work values of employees of three German multinational organisations across nations and across organisations. Value importance was measured by the strength of the empirical relationship between satisfaction of a job facet or value and overall job satisfaction; satisfaction of more important values is more strongly related to overall satisfaction than is the satisfaction of less important values. Comparisons of value importance across nations and organisations indicated substantial similarity, in contrast to previous research that has measured value importance with direct ratings. Implications of the results for our understanding of work values and the meaning of work in multicultural contexts are discussed. Cette recherche étudie les points communs et les différences dans les valeurs professionnelles des salariés de trois multinationales allemandes, cela sur plusieurs pays et organisations. L'importance d'une valeur a étéévaluée à partir de la force de la relation empirique entre la satisfaction procurée par un aspect du travail ou l'une de ses valeurs et la satisfaction professionnelle globale; la satisfaction due aux plus importantes des valeurs est davantage corrélée à la satisfaction générale que ne l'est la satisfaction apportée par les valeurs périphériques. La comparaison de l'importance des valeurs dans les divers pays et organisations a mis en évidence une grande proximité en contradiction avec les recherches antérieures qui avaient mesuré l'importance des valeurs avec des évaluations directes. On expose les retombées de ces résultats pour l'étude des valeurs professionnelles et de la signification du travail dans des contextes multiculturels. [source]