BACKGROUND Inequality in life expectancy (ILE) is defined as inequality in the distribution of expected span of life-based on data from survival tables estimated using the Atkinson inequality index. ILE can be influenced by socio-ecological indicators including the Gini coefficient, secondary education, output per worker, and old age pension. This study examined the effects on ILE from a social...

We present a new family of estimators of the Weibull tail-coefficient. The Weibull tail-coefficient is defined as the regular variation coefficient of the inverse failure rate function. Our estimators are based on a linear combination of log-spacings of the upper order statistics. Their asymptotic normality is established and illustrated for two particular cases of estimators in this family. Th...

Waterhyacinth is one of the fastest growing plants which disrupt the ecological balance. The plant inspite of its obnoxious nature, is a source of various pharmacologically active compounds. Sterols were isolated from the ethyl acetate extract of waterhyacinth and characterized to be a mixture of stigmasterol and β-sitosterol based on UV, IR, 1D and 2D NMR studies. Quantification of the isolate...

this study proceeded the identity of the shackles of participation pasture manageres about performance projects range- management to central part kohkiloie township. the purpose in this study was to identity of the shackles of participation pasture manageres about performance projects range- management to central part kohkiloie township. the present research is applied research by using descrip...

introduction development of studies on the urban, environment and conservation of natural resources, due to increase of urbanization as common lifestyles of citizens, has improved the sustainable urbanization approach that tries to improve  human interaction with nature for sound behavior. cities are the origins of consumerism and consequently irregular use of natural resources and energies. th...

background & aim: matricaria aure is one of medicinal plants belonging to asteraceae family. they naturally grow in some regions of the country and have different medical properties and various applications in medicine production and traditional medications. ecological conditions have a significant impact on growth, performance, and quality of medical plants. the aim of this research is to ...

the main function of rural areas in the third world is the agricultural function which is crucially important because of its great effects on employment, moderating income and poverty, food security and self-efficacy. this article studies the role of agriculture (as an independent variable) in rural development (related variable) of miyankangi district in sistan. the method of the study was des...