Abstract Do potential entrepreneurs remain in wage employment because of concerns that they will face worse job opportunities should their entrepreneurial ventures fail? Using a Canadian reform extends job-protected leave to one year for women giving birth after cutoff date, we study whether the option return previous increases entrepreneurship. A regression discontinuity design reveals longer ...

the potential risk of metal accumulation in periurban agricultural areas is a matter for concern.the climate characteristics and carbonate content of calcareous agricultural mediterranean soils typical inthese areas favour metal accumulation at the surface level; however there is also a risk of potential metalmobility. our study focuses on the soil properties affecting metal mobility in these s...

 Background: Fruits especially citrus species are an integral part of human diet. Contamination of foodstuffs by heavy and toxic metals via environmental pollution has become an inevitable challenge these days. Therefore, the effect of pollutants on food safety for human consumption is a global public concern. In this regards, this study was conducted for Al and Cu health risk assessme...

Risk is an inherent factor in the traveler's choice of destination. Tourism destinations differ in many aspects including their location, economic condition, cultural and political status and crime. Given such differences, the analysis of destination risk and its dimensions is of substantial interest. The current study explores the risk factors perceived about Iran as a tourism destination usin...

food security in the world that water shortages are faced is very important, especially in arid regions. effects of climate change on agricultural water requirement have doubled this importance. in this study, the risk of water demand has been assessed for a wide range of products under climate change. aogcm models have been used to simulate climate variables. the climate change scenarios of cl...

background: the incidence of ulcerative colitis (uc) is rising in populations with western-style diet, rich in fat and protein, and low in fruits and vegetables. in the present study, we aimed to evaluate the association between dietary protein intakes and the risk of developing incident uc.   methods : sixty two cases of uc and 124 controls were studied using country-specific food frequency qu...