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991.
Patrick C. Jobes 《Rural sociology》1997,62(3):315-334
Abstract Assignment of administrative positions in a sample of rural towns is demonstrated to be significantly associated with gender. Most civil administrators are women, while most legal and educational administrators are men. The difference indicates structural assignment of positions by gender. Gender and administrative position are demonstrated to have zero-order correlations with perceptions of two important behaviors for community: migration and social problems. The characteristics of the occupation and of the administrators are qualitatively different. The data are compiled from interviews with seventy administrators in five pairs of small towns in Montana, ranging in size from about 200 to approximately 7,000 residents. Each pair contains one agricultural and one scenic recreational town. Comparatively, more women were employed in agricultural towns. Many rural women who become administrators, particularly long-term administrators, may be selected for reasons that help preserve the community by providing opportunities for themselves and their families. 相似文献
992.
The relations between destructive interparental conflict (IPC) and three‐ to six‐year‐olds’ (N = 62) peer relations were examined as a function of child temperament and gender. Regression analyses indicated that effortful control moderated the relations of IPC with children's amount of peer interaction as well as with their problematic relations with peers. Specifically, high IPC was associated with low amount of interaction and high problematic relations for preschoolers low in effortful control, but it was related to high amount of interaction and low problems for those high in effortful control. Additionally, gender differences in the relations between IPC and the amount of peer interaction indicated that IPC was negatively related to the amount of interaction for girls but positively related to the amount for boys. The findings highlight the need for examining individual differences in the relations between IPC and the development of early peer relations. 相似文献
993.
994.
This study empirically investigates the safeguarding effect of (1) administrative control, (2) a dominant power position and (3) relational norms, on opportunistic behaviour of suppliers, by means of a survey among 624 information and communication technology professionals in Dutch municipalities. The findings indicate that individual effectiveness of relational norms, particularly in terms of flexibility and solidarity, was most prominent. Administrative control and power did not show a significant impact on supplier opportunism in our sample. Research into the simultaneous use of several safeguards against opportunism generated the finding that different relational norms fortify each other's safeguarding effect. Furthermore, we demonstrate that supplier opportunism is only mitigated by a dominant power position when the buyer does not exploit its favourable position and the buyer does not behave opportunistically. Hence, power seems to have a safeguarding effect only when it is not used. 相似文献
995.
Diggle PJ Guan Y Hart AC Paize F Stanton M 《Journal of the American Statistical Association》2010,105(492):1394-1402
We propose a novel alternative to case-control sampling for the estimation of individual-level risk in spatial epidemiology. Our approach uses weighted estimating equations to estimate regression parameters in the intensity function of an inhomogeneous spatial point process, when information on risk-factors is available at the individual level for cases, but only at a spatially aggregated level for the population at risk. We develop data-driven methods to select the weights used in the estimating equations and show through simulation that the choice of weights can have a major impact on efficiency of estimation. We develop a formal test to detect non-Poisson behavior in the underlying point process and assess the performance of the test using simulations of Poisson and Poisson cluster point processes. We apply our methods to data on the spatial distribution of childhood meningococcal disease cases in Merseyside, U.K. between 1981 and 2007. 相似文献
996.
C. Ming Wang 《统计学通讯:理论与方法》2013,42(14):1647-1659
The relationship between the mixed-model analysis and multivariate approach to a repeated measures design with multiple responses is presented. It is shown that by taking the trace of the appropriate submatrix of the hypothesis (error) sums of squares and crossproducts (SSCP) matrix obtained from the multivariate approach, one can get the hypothesis (error) SSCP matrix for the mixed-model analysis. Thus, when analyzing data from a multivariate repeated measures design, it is advantageous to use the multivariate approach because the result of the mixed-model analysis can also be obtained without additional computation. 相似文献
997.
Damon Mitchell D. J. Angelone Richard Hirschman Roy S. Lilly Gordon C. Nagayama Hall 《Journal of sex research》2013,50(4):326-333
The purpose of this study was to examine the influence of peer modeling on sexually impositional behavior in the laboratory. Male participants with and without a self‐reported history of sexually aggressive behavior viewed video clips depicting nonaggressive and sexually aggressive behavior and then chose one of the clips to show to a female confederate. Half of the participants were first exposed to a male confederate who showed the sexually aggressive video clip to a female confederate. The other half of the participants were exposed to a male confederate who showed a nonaggressive video clip to a female confederate. Exposure to a male confederate who showed a sexually aggressive video clip to a female was associated with participants' choosing to engage in this same behavior. A self‐reported history of sexually aggressive behavior was also associated with participants' showing the sexually aggressive video clip in spite of believing the effect on the female viewer would be negative. 相似文献
998.
999.
1000.
Christopher D. Ives Grant C. Hose David A. Nipperess Mark Patrick Taylor 《Urban Ecosystems》2011,14(1):1-16
Protecting riparian corridors is a commonly applied environmental policy in urban landscapes. However, empirical data demonstrating
their efficacy for biodiversity conservation outcomes is scarce. In this study we investigated whether riparian corridor width
influences the diversity and community structure of ant (Hymenoptera: Formicidae) and vascular plant assemblages therein.
Eighteen corridors of differing widths were selected from within the Ku-ring-gai Local Government Area, Sydney Australia.
Ants were sampled using pitfall traps positioned within rectangular vegetation transects (30 × 10 m). Both ant and plant species
richness, when standardised for sampling effort, were unrelated to riparian corridor width. However, significant compositional
differences between sites were evident with increased width up to ~50 m. Narrow corridors contained greater abundances of
opportunistic ant species and higher proportions of exotic plants. We interpret this to be the result of the greater disturbance/edge
influence derived from adjacent upland urban environments. Site beta diversity did not increase with corridor width, suggesting
that the exclusion of novel upslope habitats in narrow riparian corridors is not a significant cause of community assemblage
modification at these sites. To minimise the impact of deleterious edge effects on ant fauna, environmental managers should
seek to retain riparian corridors wider than ~50 m. However, we observed substantial between-site variability of biotic assemblages,
irrespective of corridor width. Therefore we recommend that environmental management practice needs to take a catchment-wide
approach and consider other parameters that may contribute to riparian health so as to optimise the protection of riparian
biodiversity. 相似文献