Female body condition affects foetal growth in a capital breeding mysticete

1.Sex allocation theory has received considerable attention, yet the mechanism(s) by which mothers skew offspring sex ratios remain unknown. In birds, females are the heterogametic sex, which potentially gives them control of whether gametes will be male or female. How females might control the sex of the gamete is unclear, but one possibility is that variation in steroid hormones may mediate this process. 2.We experimentally altered circulating levels of corticosterone in female Gouldian finches (Erythrura gouldiae), a species that demonstrates both extreme stress responses and extreme offspring sex ratio biases when breeding with a low-quality (genetically incompatible) partner. 3.During egg production, individual females received both corticosterone and metyrapone (a corticosterone-synthesis inhibitor) implants, in random order, to induce both high and low levels of circulating stress hormones (within physiological limits). 4.We found that females with elevated corticosterone levels produced male-biased sex ratios, but when the same females were treated with metyrapone they produced female-biased offspring sex ratios. 5.These stress responses are adaptive because females constrained to breeding with low-quality males can substantially increase their fitness by overproducing sons. Changes in maternal corticosterone levels during stressful situations, such as the quality of a breeding partner, may provide an endocrine mechanism that can be exploited for strategic sex allocation.

Capital and Consumption Tax Reforms in a Small Open Economy

The effects of a reform in capital and consumption taxes on private welfare and government tax revenue are examined for a small open, capital-importing economy. A trade-off between private welfare and tax revenue is encountered in maximizing social welfare. Nonetheless, lowering capital taxes and raising consumption taxes can increase both private welfare and tax revenue if the initial tax rates are not optimal. In addition, a tax reform by this fashion is a likely response to a rise in the foreign rate of return on capital.

Does workplace social capital buffer the effects of job stress? A cross-sectional, multilevel analysis of cigarette smoking among U.S. manufacturing workers

Objective: To investigate whether workplace social capital buffers the association between job stress and smoking status. Methods: As part of the Harvard Cancer Prevention Project's Healthy Directions—Small Business Study, interviewer-administered questionnaires were completed by 1740 workers and 288 managers in 26 manufacturing firms (84% and 85% response). Social capital was assessed by multiple items measured at the individual level among workers and contextual level among managers. Job stress was operationalized by the demand-control model. Multilevel logistic regression was used to estimate associations between job stressors and smoking and test for effect modification by social capital measures. Results: Workplace social capital (both summary measures) buffered associations between high job demands and smoking. One compositional item—worker trust in managers—buffered associations between job strain and smoking. Conclusion: Workplace social capital may modify the effects of psychosocial working conditions on health behaviors.

Essays on social capital and poverty in Bangladesh

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.

Social capital and public policy – the current challenge facing the Victorian Government

Social capital, since Putnam’s 1993 work, has captured the imagination of policy-makers the world over, and Australia is no exception. In 2005 the Department of Victorian Communities launched its Actions for Community Strengthening policy statement, which draws heavily on social capital theory. This article explores the theoretical underpinnings of the government’s policy and critiques its failure to deal adequately with the causal relationship between social capital and its supposed community benefits. The article then seeks to isolate the missing factors through a look at recent research on volunteerism and argues that the institution of collaborative/interactive governance needs to be underpinned by sound socio-economic reform.

Antisemitism and Jewish children and youth in Australia’s Capital Territory schools

Issues pertaining to religion and Australian schools have generated a significant amount of controversy and scholarly attention in recent years, and much of the attention in the religion and schools debate has focused on Muslim and non-religious children’s experiences (Erebus International, 2006; Halafoff, 2013). This article, by contrast, explores the manifestations of antisemitism as experienced by Jewish children and youth in Canberra schools. It considers the characteristics of antisemitism; when and why it occurs; its impact on the Jewish children and young people; and also the responses to it by them, the schools and the Jewish community. Based on focus groups with the Jewish students and their parents, the study reveals that antisemitism is common in Canberra schools, as almost all Jewish children and youth in this study have experienced it. The findings from this study suggest that there is a need for more anti-racism education. Specifically there is an urgent need for educational intervention about antisemitism, alongside education about religions and beliefs in general, to counter antisemitism more effectively and religious discrimination more broadly in Australian schools.

Community social capital and entrepreneurship : analyzing the links

This study examines the effects of community social capital on entrepreneurial intentions (EIs) in rural communities in a developing country. Entrepreneurship, in the form of business start-ups, is widely recognized as an integral component of local economic development programs designed to address poverty and limited livelihood opportunities, especially among poor and marginalized communities in rural areas in developing countries. Using a survey of 496 individuals residing in five rural communities in the Philippines, and drawing from the theory of planned behavior and social capital theory, we examine the direct and indirect effects of community social capital (CSC) on an individual’s EIs. The findings show that CSC largely influences EI by shaping an individual’s perceived self-efficacy (PSE) to engage in entrepreneurship, perceived desirability of entrepreneurship (PDE), and perceived social norms toward entrepreneurship (PSNE). High levels of PSE, PDE, and PSNE have a positive influence on an individual’s EI. These findings offer more nuanced explanations of how social capital within a community can facilitate entrepreneurship as a means of community economic development. Implications of the findings and areas for future research are discussed.