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 ...

Owing to the increasing number of elderly "baby boomers" in Japan, the number of cancer patients is also expected to increase. Approximately 2 million baby boomers from nearby local areas are residing in metropolitan areas; hence, the geographical distribution of cancer patients will probably markedly change. We assessed the expected number of breast cancer (BC) patients in different regions (u...

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 ...

1. Before proceeding to a projection, it is necessary to examine the definitions according to which data on "urban" and "rural" population have been determined. Under some definitions, for instance, "urban" areas remain within constant geographic boundaries, and "urban" population, so defined, can grow by births, deaths and migration only. According to some other definitions, the geographic ext...

Gastrointestinal parasites are among the major causes of severe losses to livestock industry worldwide, especially in small ruminants. This study was conducted to determine the prevalence of gastrointestinal parasites in goats kept by small holders in the urban and peri-urban areas of Mwanza City in Tanzania. Randomly, 36 farmers from urban areas, with a total of 280 goats and 22 farmers from p...

Introduction Conclusions References Tables Figures Back Close Abstract Introduction Conclusions References Tables Figures Back Close Abstract The urban boundary layer (UBL), in comparison with " rural " homogeneous atmospheric boundary layers, is characterised by greatly enhanced mixing, resulting from both the large surface roughness and increased surface heating, and by horizontal heterogene-...

In this paper we examine the relative importance of rural versus urban areas in terms of monetary poverty and seven other related living standards indicators. We present the levels of urban-rural differences for several African countries for which we have data and find that living standards in rural areas lag far behind those in urban areas. Then we examine the relative and absolute rates of ch...

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...

OBJECTIVES Currently, the incidence of scrub typhus has increased in urban areas. In this study, we described the epidemiological characteristics of scrub typhus cases reported in the urban areas of Korea in 2009. METHODS We analysed the case investigation reports of scrub typhus cases that were collected in Korea in 2009. Specially, the different risk factors such as fieldwork and outdoor ac...

The negative impacts of rapid urbanization in developing countries have led to a deterioration in urban air quality, which brings increasing negative impact to its surrounding areas (e.g. in China). However, to date there has been rare quantitative estimation of the urban air pollution to its surrounding areas in China.We thus evaluated the impact of air pollution on the surrounding environment...