نتایج جستجو برای: stochastic and environmental effects

تعداد نتایج: 17103891  

Journal: :international journal of data envelopment analysis 2013
m. khodabakhshi h. kheirollahi

performance evaluation of universities is an important issue between researchers. classic data envelopment analysis (dea) models with deterministic data have been used by many authors to measure efficiency of universities in different countries. however, dea with stochastic data are, rarely used to measure efficiency of universities. in this paper, input oriented model in stochastic data envelo...

Journal: :international journal of environmental research 2012
s.m. moghimi a. alambeigi

the current research was carried out with the aim of the investigation of organizational learning dimensions role in the development of enviropreneurship in environmental non-governmental organizations (ngos) in iran by descriptive correlation method. statistical population of this research was including all environmental ngos of industries in all over the country and statistical samples were ...

Journal: :international journal of environmental research 0
s.m. moghimi management faculty, university of tehran, tehran, iran a. alambeigi department of agricultural extension and education college of agricultural economics and development, university of tehran, tehran, iran

the current research was carried out with the aim of the investigation of organizational learning dimensions role in the development of enviropreneurship in environmental non-governmental organizations (ngos) in iran by descriptive correlation method. statistical population of this research was including all environmental ngos of industries in all over the country and statistical samples were e...

1998
Jean-Daniel M. Saphores

Using real options, we analyze the timing of implementing emission limits for a decaying pollutant when random environmental effects affect its stock. Two types of irreversibility are present: the first type results from long-term environmental damage, and the second from sunk costs in pollution abatement. We assume that social damage from pollution is a power function of the stock of pollutant...

2016
Jiannan Wu Pan Zhang Hongtao Yi Zhao Qin Pallav Purohit

In recent years, many areas of China have suffered from serious haze pollution, which greatly affects human health and daily life. It is of policy importance to understand the factors that influence the spatial concentration of PM2.5. Based on data from 74 cities with PM2.5 monitoring stations in 2013 and 2014, this study presents the overall haze situation in China and explores the determinant...

2013
Zhongyi Hu Qiu Liu

Due to environmental pollution, the climate is worsening. The fog days up to 60% of the year in inland certain segments, which it has seriously affected the marine electronic cruise normal operation and navigation safety. According to the inland video image becomes gray and lack of visibility in foggy weather conditions, and in order to remove the haze to get a clear image color and contour, th...

2014
Bor-Sen Chen Shih-Ju Ho

In this study, a population of evolutionary biological networks is described by a stochastic dynamic system with intrinsic random parameter fluctuations due to genetic variations and external disturbances caused by environmental changes in the evolutionary process. Since information on environmental changes is unavailable and their occurrence is unpredictable, they can be considered as a game p...

Journal: :Journal of applied physiology 2010
Oscar Aguilera Agustín F Fernández Alberto Muñoz Mario F Fraga

The epigenomes of higher organisms constantly change over time. Many of these epigenetic changes are necessary to direct normal cellular development and differentiation in the developing organism. However, developmental abnormalities may occur in response to inappropriate epigenetic signaling that occurs secondarily to still poorly understood causes. In addition to genetic and stochastic influe...

Journal: :Acta bio-medica : Atenei Parmensis 2015
Lorenzo Iughetti Laura Lucaccioni Barbara Predieri

The rise in obesity rates is an alarming global health concern. Despite obesity is mainly due to an unbalanced energy intake and expenditure, several recent studies suggest that it could be a consequence of exposure during critical developmental windows to environmental chemicals disrupting endocrine functions. This suggests that a shift is occurring in the human body pathways used to integrate...

نمودار تعداد نتایج جستجو در هر سال

با کلیک روی نمودار نتایج را به سال انتشار فیلتر کنید