one of the effective tools for identifying land resources and assign them to the best and most profitable forms of land productivity, susceptibility of agro-ecological zoning . in this study agro-ecological zoning of satellite imagery and gis were used. after agro-climatic zoning (based on isorain, isothermal and length of growing period maps) and agro-edaphic zoning (based on soil, slope and l...

We show that quantum-induced marginal deformations of the Starobinsky gravitational action of the form R2(1−α), with R the Ricci scalar and α a positive parameter smaller than one half, can generate sizable primordial tensor modes. We also suggest natural microscopic sources of these corrections and demonstrate that they generally lead to a nonzero and positive α. Furthermore we argue, that wit...

introduction although the concept of ecotourism as the ideal of environmental protection and sustainable development is based on the global current the role of human interference in the nature is more than that of natural conditions. because of this, there is still a vulnerable stability condition. other scholars including carter and caudal are in doubt about tourism and environmental sustainab...

Crop-land suitability analysis is a prerequisite to achieve optimum utilization of the available land resources for sustainable agricultural production. One of the most important and urgent problems in Bangladesh is to improve agricultural land management and cropping patterns to increase the agricultural production with efficient use of land resources. In Bangladesh, agriculture is the mainsta...

α-arrestins are a family of proteins that are implicated in multiple Background: biological processes, including metabolism and receptor desensitization. Here, we sought to examine the roles of α-arrestins in the longevity Methods: of through an RNA interference screen. We Caenorhabditis elegans Results: found that knocking down each of 24 out of total 29 α-arrestins had C. elegans small or no ...