Invasive species and habitat disturbance threaten biodiversity worldwide by modifying ecosystem performance and displacing native organisms. Similar homogenization impacts manifest locally when urbanization forces native species to relocate or reinvade perpetually altered habitat. This study investigated correlations between ant richness and abundance in response to urbanization and the nearby ...

BACKGROUND General surgeons form a crucial component of the medical workforce in rural areas of the United States. Any decline in their numbers could have profound effects on access to adequate health care in such areas. HYPOTHESIS We hypothesize that the rural areas of the United States are relatively undersupplied with general surgeons. DESIGN AND SETTING The American Medical Association'...

OBJECTIVES Coeliac disease has emerged as an increasingly recognised public health problem over the last half-century, and is now coming to be seen as a global phenomenon, despite a profound lack of globally representative epidemiological data. Since children with coeliac disease commonly present with chronic diarrhoea and malnutrition, diagnosis is often overlooked, particularly in poorer sett...

Suburbanization in the US largely occurred to solve various urban problems; however, it has also caused many issues, such as the decline of central urban areas, the waste of land resources, and the deterioration of ecological environments in the suburbs. Therefore, the study of suburbanization has received considerable attention in academia. Scholars have argued that suburbanization leads to ec...

Citizen Participation in Urban Policy by Charles E. Hillman Submitted to the Department of Urban Studies and Planning on May 9, 1974 in partial fufillment of the requirements for the degree of Bachelor of Science. Citizen participation has always been a hallowed concept in our form of liberal democracy. It not only legitimizes the political process but is also a strong force for citizen educati...

The rapid fertility decline in China during the 1970s coincided with rapid rises in the educational attainment of Chinese women, raising questions about the relative importance of educational change to fertility trends. To examine this association, fertility declines in the period 1967-70 to 1979-81 were compared in 2 Chinese provinces--Liaoning, and economically advanced province, and Sichuan...