922 resultados para Pittsburgh (Pa.)--Social conditions


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Social interactions with adults are often critical for the development of mating behaviours. However, the potential role of other primary social partners such as juvenile counterparts is rarely considered. Most interestingly, it is not known whether interactions with juvenile females improve males’ courtship and whether, similar to the winner and loser effects in a fighting context—outcome of these interactions shapes males’ behaviour in future encounters. We investigated the combined effects of male quality and juvenile social experience on pairing success at adulthood in zebra finches (Taeniopygia guttata). We manipulated brood size to alter male quality and then placed males in either same- or mixed-sex juvenile dyads until adulthood. We found that males from reduced broods obtained more copulations and males from mixed-sex dyads had more complete courtships. Furthermore, independent of their quality, males that failed to pair with juvenile females, but not juvenile males, had a lower pairing success at adulthood. Our study shows that negative social experience with peers during adolescence may be a potent determinant of pairing success that can override the effects of early environmental conditions on male attractiveness and thereby supports the occurrence of an analogous process to the loser effect in a mating context.

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The thesis examines the role of social capital in determining a number of socio-economic factors in Bangladesh. It uses cross-sectional data of 5600 extreme poor households and finds that social capital plays an important role in improving health and hygienic behaviour, and labour market outcomes during lean season.

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The Australian Unity Wellbeing Index monitors the subjective wellbeing of the Australian population. Our first survey was conducted in April 2001 and this report concerns the 30th survey, undertaken in August 2013. Our previous survey had been conducted four months earlier in April. This intervening period corresponded to the 6th year of the Labor Government, elected in November 2007. Shortly after data collection, on 7th September, an election took place at which Labor lost to the Liberal Party Coalition.
The share market had been stable for a couple of years, at a level well below its peak before the financial crisis. However, unemployment remained at about 5% and for those people with jobs, many were better-off financially due to cuts in interest rates, and so, in mortgage repayments.
Each survey involves a telephone interview with a new sample of 2,000 Australians, selected to represent the geographic distribution of the national population. These surveys comprise the Personal Wellbeing Index, which measures people’s satisfaction with their own lives, and the National Wellbeing Index, which measures how satisfied people are with life in Australia. Other items include a standard set of demographic questions and other survey-specific questions. The specific topics for Survey 30 are social media, personal achievement, and work conditions.

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This article explores migrant young people’s engagement, participation and involvement in socially meaningful activi-ties, events and experiences. This type of social participation is approached in the social inclusion literature using the notions of social capital and active citizenship (Bourdieu, 1986; Coleman, 1988; Putnam, 1993; Putnam, 2000). A key objective, therefore, is to explore the attitudes, values and perceptions associated with social participation for young people. They include the meanings that social engagement has for migrant young people, along with drivers and inhibi-tions to active participation. The article focuses on both the motives for being actively engaged as well as perceived barriers to social engagement. It is based on a large study conducted among migrant young people of African, Arabic-speaking and Pacific Islander backgrounds in Melbourne and Brisbane, and presents both quantitative and qualitative (discursive) snapshots from the overall findings, based on interviews and focus groups. While many studies have cen-tred on the management of migration and migrants, this article draws attention to the individuals’ active position in negotiating, interpreting and appropriating the conditions of social inclusion. Accounting for the multidimensional and multilayered nature of social inclusion, the paper highlights the heuristic role of social engagement in fostering the feel-ings of belonging and personal growth for migrant youth.

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In this paper, the author discusses the reform agenda undertaken by UniversitiSains Malaysia (USM) to contextualise higher education reform within culturaland social theory. It is important to understand leadership in leading reformwithin a broader and more holistic fashion that takes into account localculture, politics and history. University Sains Malaysia is embarking on what isreferred to as the APEX agenda. The APEX strategy in Malaysia is an importantapproach towards achieving world-class status university institutions. The ApexUniversities will be the nation’s centres of academic distinction. Ensuring andbuilding upon the ethical authority that APEX gives USM, the challenge of leadership in USM is to engage in the forces of globalization and modernizationwhile at the same time take cognizance of the characteristics and demands ofMalaysian culture as central still to the successful mission of USM.

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Mitochondrial sequence data is often used to reconstruct the demographic history of Pleistocene populations in an effort to understand how species have responded to past climate change events. However, departures from neutral equilibrium conditions can confound evolutionary inference in species with structured populations or those that have experienced periods of population expansion or decline. Selection can affect patterns of mitochondrial DNA variation and variable mutation rates among mitochondrial genes can compromise inferences drawn from single markers. We investigated the contribution of these factors to patterns of mitochondrial variation and estimates of time to most recent common ancestor (TMRCA) for two clades in a co-operatively breeding avian species, the white-browed babbler Pomatostomus superciliosus. Both the protein-coding ND3 gene and hypervariable domain I control region sequences showed departures from neutral expectations within the superciliosus clade, and a two-fold difference in TMRCA estimates. Bayesian phylogenetic analysis provided evidence of departure from a strict clock model of molecular evolution in domain I, leading to an over-estimation of TMRCA for the superciliosus clade at this marker. Our results suggest mitochondrial studies that attempt to reconstruct Pleistocene demographic histories should rigorously evaluate data for departures from neutral equilibrium expectations, including variation in evolutionary rates across multiple markers. Failure to do so can lead to serious errors in the estimation of evolutionary parameters and subsequent demographic inferences concerning the role of climate as a driver of evolutionary change. These effects may be especially pronounced in species with complex social structures occupying heterogeneous environments. We propose that environmentally driven differences in social structure may explain observed differences in evolutionary rate of domain I sequences, resulting from longer than expected retention times for matriarchal lineages in the superciliosus clade.

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Comorbidity between problem gambling and internalising disorders (anxiety and depression) has long been recognised. However, it is not clear how these relationships develop, and what factors can foster resilience to both conditions. The current study draws on longitudinal cohort data to investigate: 1) the cross-sectional and longitudinal relationships between problem gambling and internalising symptoms; 2) whether there are common and/or specific social environmental factors protective against both internalising symptoms and problem gambling in young adulthood; and 3) interactive protective factors (i.e., those that moderate the relationship between problem gambling and internalising symptoms).