Search PubMed⌕ Search

SEARCH · Search PubMed

Results for “Urban Spatial Distribution”

Search indexed PubMed citations on genomics, clinical trials, systematic reviews and public health. Explore titles, authors and supplied subject terms, then open the PubMed record.

Quote a phrase for an exact phrase match. Source license links do not imply unrestricted reuse.

At least 1,297 records · Page 72Linked to original sources
PubMed1992

Vector-borne disease problems in rapid urbanization: new approaches to vector control.

Owing to population growth, poor levels of hygiene, and increasing urban poverty, the urban environment in many developing countries is rapidly deteriorating. Densely packed housing in shanty towns or slums and inadequate drinking-water supplies, garbage collection services, and surface-water drainage systems combine to create favourable habitats for the proliferation of vectors and reservoirs of communicable diseases. As a consequence, vector-borne diseases such as malaria, lymphatic filariasis and dengue are becoming major public health problems associated with rapid urbanization in many tropical countries. The problems in controlling these diseases and eliminating vectors and pests can be resolved by decision-makers and urban planners by moving away from the concept of "blanket" applications of pesticides towards integrated approaches. Sound environmental management practices and community education and participation form the mainstay of some of the most outstanding successes in this area. On the basis of these examples, it is argued that the municipal authorities need to apply a flexible methodology, which must be based on the possibilities of mobilizing community resources, with minimal reliance on routine pesticidal spraying. In this way, vector control becomes a by-product of human development in the city environment. This is now a true challenge.

Animals↗
PubMed1998

U.S. suburbanization in the 1980s.

"This paper measures and analyzes differences in rates of suburbanization during the 1980s among U.S. metropolitan areas which fit a monocentric urban model. Three findings are of interest: (1) the average rate of suburbanization for U.S. metropolitan areas was the same in the 1980s and the 1970s; (2) the monocentric urban model provides a good description of population distribution for a diminishing number of urban areas; and (3) variables that characterize the entire metropolitan area as well as those that measure disparities between the central city and its suburban ring are important in explaining differences in rates of decentralization."

Americas↗
PubMed1985

Is there a step-wise migration in Nigeria? A case study of the migrational histories of migrants in Lagos.

"The paper sets out to test whether or not the movement pattern of people in Nigeria is step-wise. It examines the spatial order in the country and the movement pattern of people. It then analyzes the survey data and tests for the validity of step-wise migration in the country. The findings show that step-wise migration cannot adequately describe all the patterns observed." The presence of large-scale circulatory migration between rural and urban areas is noted. Ways to decrease the pressure on Lagos by developing intermediate urban areas are considered.

Africa↗
PubMed1987

Urbanization, migration and urban research in comparative context: an urban systems perspective.

"The urbanization process is not only global in scale, and thus subject to universal principles, but intensely specific in time and place. The former calls for research which is both transnational and comparative, the latter for analyses set in the appropriate socioeconomic and political circumstances. This paper outlines a conceptual framework, based on the theory of urban systems, that can accommodate both spatial scales as well as provide a bridge between research focusing on developed and developing countries. A developmental model of migration is introduced to illustrate the approach and the paper concludes with a series of challenges to future research."

Demography↗