نتایج جستجو برای: agriculture using cochran
تعداد نتایج: 3436636 فیلتر نتایج به سال:
This article aims to investigate the role of social and institutional factors on agricultural entrepreneurship development in Fasa city. The statistical population of the study is all those who have started a new business in the agricultural sector of Fasa in the last 5 years. The theoretical framework of Robert Putnam's theories of research is Francis Fukuyama on social networks and Mark Grano...
Due to the importance of greenhouse products in Jiroft County, this research was carried out to study the factors affecting adoption of Integrated Pest Management (IPM) operations by greenhouse owners, using Ordered Logit model, in 2014. The studied population consisted of 1650 greenhouse owners and the sample size was determined as 160 farmers, based on Cochran formula. Sampling method was pro...
Production traits such as growth, feed efficiency, survival, and fillet yield are economically important traits and an improvement in one or more of these traits will benefit the U.S. catfish farming industry. The U.S. Department of Agriculture (USDA) 103 line of channel catfish was developed jointly between the USDA Agricultural Research Service (ARS) Catfish Genetics Research Unit, Stoneville...
Cochran constructed many links with Alexander module that of the unlink and some nonvanishing Milnor invariants, using as input commutators in a free group and as an invariant the longitudes of the links. We present a different and conjecturally complete construction, that uses elementary properties of clasper surgery, and a different invariant, the tree-part of the LMO invariant. Our method al...
BACKGROUND Examining seasonal patterns of birth defects may help to identify environmental risk factors. Because the teratogenic window for most birth defects is during gestational weeks 3 to 8, investigating exposures closer to the timing of conception is important. However, studies are usually based on month of birth, which is not the biologically relevant exposure period and does not account...
porpuse: this study aims to identify factors affecting rural women's participation in educational- extension programs of the jihad- agriculture service centers in amol township, in order to be able to take positive steps in facilitating and accelerating the process of rural and agricultural development, as the result of the improvement in their level of participation. methodology: considering t...
The agriculture directorate is using a modified version of the GTAP model to analyse the impact of agriculture and non-agriculture reform. This analysis is part of an overall project that analyses policy reform using a "top-down" approach that integrating a variety of modeling techniques. Global and regional analysis is carried out using general equilibrium (modified GTAP), while at the other e...
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