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Population Displacement (population + displacement)

Distribution by Scientific Domains
Humanities and Social Sciences50%

Selected Abstracts

Changes in HIV/AIDS/STI Knowledge, Attitudes and Practices among Commercial Sex Workers and Military Forces in Port Loko, Sierra Leone

DISASTERS, Issue 3 2004
Mandi M. Larsen
Sierra Leone suffered from 11 years of civil war (1991,2002) resulting in tens of thousands of deaths and mutilations together with massive population displacement. In 2001, ARC International, Sierra Leone conducted a baseline survey of 201 commercial sex workers (CSWs) and 202 military respondents on the knowledge, attitudes and practices surrounding HIV/AIDS and STIs in Port Loko, Sierra Leone. In 2003, a comparable post-intervention survey of 202 CSWs and 205 military respondents was performed. Comparison of baseline and post-intervention results showed that HIV/AIDS knowledge increased among both groups, with those able to name three effective means of avoiding AIDS increasing from 5 per cent to 70 per cent among CSWs, and 11 to 75 per cent among the military. Reported condom use during last sex increased among CSWs from 38 to 68 per cent and among military from 39 to 68 per cent. These results demonstrate that, despite the challenges inherent in a post-conflict country, good-quality AIDS-prevention programmes can be effective. [source]

Humanitarian aid beyond "bare survival": Social movement responses to xenophobic violence in South Africa

AMERICAN ETHNOLOGIST, Issue 4 2009
STEVEN ROBINS
ABSTRACT In this article, I investigate responses to the humanitarian crisis that emerged following the May 2008 xenophobic violence against South African nonnationals that resulted in 62 deaths and the displacement of well over 30,000 people. I focus specifically on how a South African AIDS activist movement, the Treatment Action Campaign (TAC) and its partners, Médecins Sans Frontières (MSF,Doctors Without Borders) and the AIDS Law Project (ALP), translated a particular style and strategy of AIDS activism into legal, medical, humanitarian, and political responses to the massive population displacement. The TAC provided relief to displaced people in the form of basic needs, such as food, clothes, and blankets, as well as legal aid, and it engaged in activism that promoted the rights of the refugees. I investigate how the ideas and practices of global agencies such as the United Nations High Commission for Refugees (UNHCR) were deployed and reinterpreted by TAC activists. I also examine how TAC activists involved in assisting the refugees drew on a global humanitarian assemblage of categories, legal definitions, norms and standards, and procedures and technologies that went beyond the simple management of "bare life." TAC's shift from fighting for antiretroviral drugs (ARVs) to fighting for refugees' rights reveals a "politics of life" that spans multiple issues, networks, and constituencies. It is also a politics that, at times, strategically deploys standardized bureaucratic logics and biopolitical techniques of humanitarian aid. [source]

A Review of the Cluster Survey Sampling Method in Humanitarian Emergencies

PUBLIC HEALTH NURSING, Issue 4 2008
Shaun K. Morris
ABSTRACT Obtaining quality data in a timely manner from humanitarian emergencies is inherently difficult. Conditions of war, famine, population displacement, and other humanitarian disasters, cause limitations in the ability to widely survey. These limitations hold the potential to introduce fatal biases into study results. The cluster sample method is the most frequently used technique to draw a representative sample in these types of scenarios. A recent study utilizing the cluster sample method to estimate the number of excess deaths due to the invasion of Iraq has generated much controversy and confusion about this sampling technique. Although subject to certain intrinsic limitations, cluster sampling allows researchers to utilize statistical methods to draw inferences regarding entire populations when data gathering would otherwise be impossible. [source]

ESTIMATING A GEOGRAPHICALLY EXPLICIT MODEL OF POPULATION DIVERGENCE

EVOLUTION, Issue 3 2007
L. Lacey Knowles
Patterns of genetic variation can provide valuable insights for deciphering the relative roles of different evolutionary processes in species differentiation. However, population-genetic models for studying divergence in geographically structured species are generally lacking. Since these are the biogeographic settings where genetic drift is expected to predominate, not only are population-genetic tests of hypotheses in geographically structured species constrained, but generalizations about the evolutionary processes that promote species divergence may also be potentially biased. Here we estimate a population-divergence model in montane grasshoppers from the sky islands of the Rocky Mountains. Because this region was directly impacted by Pleistocene glaciation, both the displacement into glacial refugia and recolonization of montane habitats may contribute to differentiation. Building on the tradition of using information from the genealogical relationships of alleles to infer the geography of divergence, here the additional consideration of the process of gene-lineage sorting is used to obtain a quantitative estimate of population relationships and historical associations (i.e., a population tree) from the gene trees of five anonymous nuclear loci and one mitochondrial locus in the broadly distributed species Melanoplus oregonensis. Three different approaches are used to estimate a model of population divergence; this comparison allows us to evaluate specific methodological assumptions that influence the estimated history of divergence. A model of population divergence was identified that significantly fits the data better compared to the other approaches, based on per-site likelihood scores of the multiple loci, and that provides clues about how divergence proceeded in M. oregonensis during the dynamic Pleistocene. Unlike the approaches that either considered only the most recent coalescence (i.e., information from a single individual per population) or did not consider the pattern of coalescence in the gene genealogies, the population-divergence model that best fits the data was estimated by considering the pattern of gene lineage coalescence across multiple individuals, as well as loci. These results indicate that sampling of multiple individuals per population is critical to obtaining an accurate estimate of the history of divergence so that the signal of common ancestry can be separated from the confounding influence of gene flow,even though estimates suggest that gene flow is not a predominant factor structuring patterns of genetic variation across these sky island populations. They also suggest that the gene genealogies contain information about population relationships, despite the lack of complete sorting of gene lineages. What emerges from the analyses is a model of population divergence that incorporates both contemporary distributions and historical associations, and shows a latitudinal and regional structuring of populations reminiscent of population displacements into multiple glacial refugia. Because the population-divergence model itself is built upon the specific events shaping the history of M. oregonensis, it provides a framework for estimating additional population-genetic parameters relevant to understanding the processes governing differentiation in geographically structured species and avoids the problems of relying on overly simplified and inaccurate divergence models. The utility of these approaches, as well as the caveats and future improvements, for estimating population relationships and historical associations relevant to genetic analyses of geographically structured species are discussed. [source]