Timing nitrogen applications to the biological needs of a crop is an effective way to reduce nitrogen losses to the environment. However, this strategy may carry a production risk and conflict with farmers' economic objectives. A field-level production decision model was used to estimate on-farm costs associated with timing nitrogen applications for crop needs in Indiana. For a risk-neutral far...

Studies have suggested that obesity prevalence varies by income and educational level, although patterns might differ between high-income and low-income countries (1-3). Previous analyses of U.S. data have shown that the prevalence of obesity varied by income and education, but results were not consistent by sex and race/Hispanic origin (4). Using data from the National Health and Nutrition Exa...

Risk tolerance is fundamental to decision-making and behaviour. Here we show that individuals' tolerance of risk follows a weekly cycle. We observed this cycle directly in a behavioural experiment using the Balloon Analogue Risk Task (Lejuez et al., 2002; Study 1). We also observed it indirectly via voting intentions, gathered from 81,564 responses across 70 opinion polls ahead of the Scottish ...

Background & aim: Government of Ethiopia is promoting institutional delivery despite the fact that there are a high number of home deliveries in the country mainly in hard-to-reach areas. Choice of institutional delivery is vital for the reduction of maternal and neonatal mortalities. The present study aimed to investigate the determinants of institutional delivery in ...

Drawing on Norton Peirce's (1995) theory of investment and Darvin and Norton's (2015) expanded the model of investment, the present study aims to research investment in second language (L2) learning among Iranian English language learners. The participants included 852 male and female English language learners belonging to different age groups and English language proficiency levels. A ...

background: there is an international emphasis on providing timely and high quality data to monitor progress of countries toward millennium development goals. iran’s multiple indicator demographic and health survey (irmidhs) aimed to provide valid information on population and health outcomes to monitor progress in achieving national priorities and health programs and to assist policy makers to...

due to his nature, man always asks questions about the meaning of things. all branches of knowledge and civilization are the answers he has given to the mystery of being, of his own and of other things. here, the question about the meaning of action is also considerably important. in this study, we are going to analyze the answers given from a sociological view to the question about the meaning...

Labour Market Regulation in the EU-15: Causes and Consequences – A Survey Why should floors be set under wages and working conditions by labour market regulations? This paper finds that efficiency arguments are questionable, because of the disemployment effects of strict regulation. Regulation is better explained in terms of the choices of the employed semiand unskilled worker group. This group...

The 2010 health care reform law has been as controversial as any piece of American legislation in recent memory. Although numerous polls have been conducted on the public's views of the reform, we do not know much about how citizens evaluated the policy alternatives. Are citizens more focused on how policy affects them personally or how it affects the nation as a whole? Further, are these evalu...