Now showing items 1-10 of 17
Modeling and analyzing HIV transmission: the effect of contact patterns
(Elsevier, 1988-12)
A compartmental model is presented for the spread of HIV in a homosexual population divided into subgroups by degree of sexual activity. The model includes constant recruitment rates for the susceptibles in the subgroups. ...
Neighborhood Social Change and Perceptions of Environmental Degradation
(Kluwer Academic Publishers-Plenum Publishers; Human Sciences Press, Inc. ; Springer Science+Business Media, 2003-11)
This paper investigates how changes in neighborhood facilities—new schools, health posts, bus services, mills, dairies, agricultural cooperatives, and other facilities—influence perceptions of environmental degradation. ...
Environment, Access to Health Care, and Other Factors Affecting Infant and Child Survival Among the African and Coloured Populations of South Africa, 1989–94
(Kluwer Academic Publishers-Plenum Publishers; Human Sciences Press, Inc. ; Springer Science+Business Media, 2002-03)
Some maintain that environmental factors are unimportant for infant and child survival once mother's education and other characteristics have been taken into account. However, an analysis of survival of African and Coloured ...
Russia Faces Depopulation? Dynamics of Population Decline
(Kluwer Academic Publishers-Plenum Publishers; Human Sciences Press, Inc. ; Springer Science+Business Media, 2002-05)
Between 1992 and 1993 Russia's population declined, as it has in every succeeding year. This has been viewed as a population disaster, related to high adult male mortality and deterioration of the health care system. Some ...
Immigration, Welfare Magnets and the Geography of Child Poverty in the United States
(Kluwer Academic Publishers-Plenum Publishers; Human Sciences Press, Inc. ; Springer Science+Business Media, 1997-09)
This study presents a detailed look at the immigration and internal migration dynamics of child poverty for US States based on the 1990 US census. It assesses the impact of two policy-relevant factors on the migration of ...
Interstate migration of the US poverty population: Immigration “pushes” and welfare magnet “pulls”
(Kluwer Academic Publishers-Human Sciences Press; Human Sciences Press, Inc. ; Springer Science+Business Media, 1996-07)
This study evaluates the social and demographic structure of poverty migration during the 1985–90 period based on an analysis of recent census data. Particular attention is given to the roles of two policy-relevant factors ...
The spread and persistence of infectious diseases in structured populations
(Elsevier, 1988)
A basic assumption of many epidemic models is that populations are composed of a homogeneous group of randomly mixing individuals. This is not a realistic assumption. Most actual populations are divided into a number of ...
Editor's Introduction: Unforeseen Consequences of Policy Decisions
(Kluwer Academic Publishers-Plenum Publishers; Human Sciences Press, Inc. ; Springer Science+Business Media, 2004-03)
Immigration and internal migration “flight”: A California case study
(Kluwer Academic Publishers-Human Sciences Press; Human Sciences Press, Inc. ; Springer Science+Business Media, 1995-03)
Recent analyses of 1990 census migration data have pointed up disparities in the way immigration and internal migration contributions affect an area's demographic profile. They show that there is little overlap between ...
The stochastic SI model with recruitment and deaths I. comparison with the closed SIS model
(Elsevier, 1993)
We compare the stochastic and deterministic version of an SI model with recuitment, background deaths, and deaths due to the disease. For the stochastic version, analysis of the mean number of susceptibles, m, and infecteds, ...