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...

The purpose of this study was to investigate the association between body mass index (BMI) and the prevalence of wheeze using nation-wide cross-sectional study in Korean children. Total 50,200 children from 427 elementary schools were randomly selected according to residential areas (metropolitan, provincial, rural, and industrial areas) by the cluster sampling method. The International Study o...

t his study investigates the factors affecting the demand for new residential buildings in urban areas of iran during 1976-2010. the demand function for new residential buildings in urban areas was estimated and then the existence of a long-run relationship among variables of this function was studied using the bounds testing of the autoregressive distributed lag co-integration procedure. the t...

Persistent organic pollutants (POPs) are a global concern due to their ubiquitous presence and toxicity. Currently, there is a lack of information regarding POPs from South Africa. Here we report and interpret concentrations of polychlorinated dibenzo-p-dioxins (PCDDs), -dibenzofurans (PCDFs) and co-planar-biphenyls (PCBs) in soils and sediments collected from central South Africa. High resolut...

landscape characteristics and land use patterns of watershed demonstrate extension, distribution, density and abundance of human interference. these factors can affect water quality of adjacent aquatic systems within a watershed. land use changes have caused various environmental problems for zayandehroud river,turned it as a sink of pollutant. therefore this is investigated that how would land...

U.S. metropolitan neighborhoods have become increasingly segregated by income over the past thirty years. The metropolitan areas with the largest rises in income segregation include a number of distressed cities in industrial decline, as well as a subset of rapidly growing metropolitan areas. I propose a simple model based on the notion that rising income inequality creates market pressure (or ...

This paper proposes a method to infer bloggers’ residential areas. Identifying bloggers’ residential areas will be useful as another axis to retrieve weblogs or for tasks that resolve ambiguous objects in terms of geographic contexts. Our method focuses on the local context of geographic location terms and uses binary classifiers to decide whether the context is indicating the writer’s resident...