the theory of urban ecology is based on explaining urban spatial structure, studying and describing the reciprocal relationship between human societies in the urban areas and the environment, as well as analyzing the circumstances of urban population segregation and production of everyday life spaces. to study and explain urban ecological structure of mashhad, the case study of the article, we ...

in this paper breastfeeding was studied among 10240 urban and 10794 rural mothers, whose children were 18 to 23 months of age. the sample size for rural and urban areas was equal, butin each province the cluster sampling method was used proportional to the population of each district. the results ofthe study show that between 17% to 28% of urban mothers in the provinces have deprived their chil...

background: baits have become popular and effective formulations against urban insect pests. compared with re­sidual sprays toxic gel baits are used more and more frequently to control urban cockroach populations. the aim of this study was to investigate the usage of two commercially available fipronil and imidacloprid gel bait formulations against blattella germanica field infested in iran. me...

adverse lifestyle changes like rapid change in dietary habits coupled with decreased physical activity and increasing rates of alcohol and tobacco consumption can increase coronary artery disease risk factors and its mortality even higher than the rates predicted. to evaluate the role of adverse lifestyle changes factors in the causation of cad, a hospital based case-control study was conducted...

the cities are home to half of the people who live on the planet earth. they stimulate economic growth and cultural prosperity, but they are also the center of pollution and poverty. therefore, the livability of cities, in particular urban distressed areas, has always been one of the issues and challenges facing thinkers in different fields of urban management. however, the planning to improve ...

introduction census data of iran show that about 68.5% (1956) to 29% (2011) of rural population has decreased over the past half-century. rural population has rapidly declined over the last half century and is influenced by several factors, one of which is rural- urban migration. although the percentage of rural to urban migration (20%) and urban to rural one (17%) from 1996 to 2006 show less d...