fleas are the most common and important external parasites worldwide and also serves as vectors of various pathogens for humans and animals. the study aimed to determine the prevalence of pulex irritants in sheep herds and residential areas of villages in kurdsitan province, iran. a total of 2,900 sheep were randomly selected from 48 flocks and 630 residential areas of 18 villages from november...

soil salinity is one of the problems threatening agricultural lands. parts of this phenomenon are related to geologic formations and saltpans, while some major factors are resulted from irrelevant agricultural activities, issue of irrigation, and improper cultivation systems which lead to increase in soil salinity. to avoid such consequences that would end up with ecosystem degradation, suitabl...

Tanzania 2002 Summary The continued vicious cycle of population-poverty-and-environmental degradation has been acknowledged. The purpose of this paper, therefore, is to draw attention to the serious consequences of land degradation, a national and trans-national socioeconomic complex problem, and the need for rehabilitating degraded lands in the sub-humid lands of Sub-Saharan Africa (SSA). The ...

There are large disparities in American Indian pediatric motor vehicle (MV) mortality with reports that several factors may contribute. The Fatality Analysis Reporting System for 2000-2014 was used to examine restraint use for occupants aged 0-19 years involved in fatal MV crashes on Indian lands (n = 1667) and non-Indian lands in adjacent states (n = 126,080). SAS GLIMMIX logistic regression w...

The usage of social theories in the human-built environment caused to enhance life quality. It may consist of human needs in residential areas. Sometimes, building codes can help to exist accepted life space, but the building codes do not have basic theory such as actual open space in residential plots. The study was an attempt to represent a new approach in urban land subdivision and the relat...

Protected areas (including areas that are nominally fully protected and those managed for multiple uses) encompass about a quarter of the total tropical forest estate. Despite growing interest in the relative value of community-managed lands and protected areas, knowledge about the biodiversity value that each sustains remains scarce in the biodiversity-rich tropics. We investigated the species...

We consider C/ZN and C/ZN orbifolds of heterotic string theories and ZN orbifolds of AdS3. We study theories with N=2 worldsheet superconformal invariance and construct RG flows. Following Harvey, Kutasov, Martinec and Moore, we compute gcl and show that it decreases monotonically along RG flowsas conjectured by them. For the heterotic string theories, the gauge degrees of freedom do not contri...