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sub-Saharan Africans (sub-saharan + african)
Terms modified by sub-Saharan Africans Selected Abstracts"Kana sora ratswa ngaritswe": African Nationalists and Black Workers , The 1948 General Strike in Colonial ZimbabweJOURNAL OF HISTORICAL SOCIOLOGY, Issue 3 2000Ian Phimister For almost two weeks in April 1948 colonial Zimbabwe's two major cities, as well as smaller towns, mines and farms were convulsed by mass unrest. Although the causes of the General Strike have long been recognised as having their origins in the urban squalor and rampant inflation of the immediate post-war era, there is little agreement about either its organisation or its significance. Recent interventions in the debate have tended to strengthen existing prejudices. This paper advances four linked propositions which radically reformulate previous positions: that, while the development of secondary industry and the related growth of colonial Zimbabwe's urban areas were both relatively large by the modest standards of Sub-Saharan African, the scale was small in absolute terms; that these processes and their social consequences differed considerably between Bulawayo and Salisbury; that that the limited scale of these processes often meant that parochial concerns were more important than national issues; and that while all of this facilitated a greater degree of control over events in Bulawayo, if not in Salisbury, by an elite leadership than some writers have conceded, these events did not amount to a colony-wide General Strike. [source] Human DNA sequences: More variation and less raceAMERICAN JOURNAL OF PHYSICAL ANTHROPOLOGY, Issue 1 2009Jeffrey C. Long Abstract Interest in genetic diversity within and between human populations as a way to answer questions about race has intensified in light of recent advances in genome technology. The purpose of this article is to apply a method of generalized hierarchical modeling to two DNA data sets. The first data set consists of a small sample of individuals (n = 32 total, from eight populations) who have been fully resequenced for 63 loci that encode a total of 38,534 base pairs. The second data set consists of a large sample of individuals (n = 928 total, from 46 populations) who have been genotyped at 580 loci that encode short tandem repeats. The results are clear and somewhat surprising. We see that populations differ in the amount of diversity that they harbor. The pattern of DNA diversity is one of nested subsets, such that the diversity in non-Sub-Saharan African populations is essentially a subset of the diversity found in Sub-Saharan African populations. The actual pattern of DNA diversity creates some unsettling problems for using race as meaningful genetic categories. For example, the pattern of DNA diversity implies that some populations belong to more than one race (e.g., Europeans), whereas other populations do not belong to any race at all (e.g., Sub-Saharan Africans). As Frank Livingstone noted long ago, the Linnean classification system cannot accommodate this pattern because within the system a population cannot belong to more than one named group within a taxonomic level. Am J Phys Anthropol 2009. © 2009 Wiley-Liss, Inc. [source] AFRICAN, RUSSIAN, AND UKRAINIAN REFUGEE RESETTLEMENT IN PORTLAND, OREGONGEOGRAPHICAL REVIEW, Issue 2 2005SUSAN E. HUME ABSTRACT. The residential patterns, adaptation experiences, and impacts of immigrants on North American cities have been well documented in the geographical literature. In this article, we build on prior work by testing the theories of Gaim Kibreab, who identified three factors that shape the experiences of recent refugees: attitudes of the receiving society; current policy environments; and employment opportunities in local communities. We analyze some of the ways in which these factors operate as interrelated systems for two comparative groups of foreign-born migrants in Portland, Oregon: sub-Saharan Africans; and Russians and Ukrainians. Using a mixed-methods approach, we triangulate data from a blend of in-depth interviews, participant observation in the community and at refugee and immigrant social service agencies, census and other statistical records, and cartographic analyses to report on the findings of our work. Data suggest that the residential, economic, and social spaces of new refugees are constructed as a complex multiplicity of networks and relationships that link time and place [source] Molecular and epidemiological characteristics of blood-borne virus infections among recent immigrants in SpainJOURNAL OF MEDICAL VIROLOGY, Issue 12 2006Carlos Toro Abstract The increased immigration from developing regions to Western countries raises public health concerns related to blood-borne viruses. The prevalence of human immunodeficiency virus (HIV), hepatitis B virus (HBV), hepatitis C virus (HCV), and human T-lymphotropic virus (HTLV) infections among recent immigrants attending several Spanish diagnostic centers in years 2002 and 2003 was examined. Genetic characterization of viral subtypes and its relationship with distinct at-risk populations was carried out. A total of 1,303 immigrants were identified. They originated in Latin America (46.9%), Sub-Saharan Africa (23.7%), Eastern Europe (9.4%), and the Maghreb (9.2%). Seroprevalence rates were as follows: HIV-1 4.2%, HBV 4.1%, HCV 2.9%, and HTLV-1 0.8%. All patients with HIV-1 non-B subtypes, HBV genotypes E and A3, and HCV genotype 4 were sub-Saharan Africans, and had been infected mainly through heterosexual contacts. In contrast, Latin American homo/bisexual men carried HIV-1 subtype B most likely acquired after their arrival to Spain. In conclusion, while Sub-Saharan Africans carry wide diverse genetic variants of blood-borne viruses, the absence of high-risk practices in most cases could limit the spread of these variants. In contrast, Latin Americans with high-risk sexual practices may be a particularly vulnerable collective to acquire blood-borne viruses in the receptor country. J. Med. Virol. 78:1599,1608, 2006. © 2006 Wiley-Liss, Inc. [source] Beta-globin gene cluster haplotypes in Afro-Uruguayans from two geographical regions (South and North)AMERICAN JOURNAL OF HUMAN BIOLOGY, Issue 1 2010Julio Da Luz The ,-globin gene cluster haplotypes were identified in 52 and 40 chromosomes from two Afro-Uruguayan populations located in the South and North of the country, respectively. In both regions, the 5, haplotype 2 (+ , , , ,), characteristic of non-African populations, was the most frequent, reflecting a strong process of admixture in Afro-Uruguayans (0.355 and 0.262, respectively). The haplotypes 3 (, , , , +) and 4 (, + , , +), characteristics of African sub-Saharan populations, present inverse frequencies in North and South: whereas in the South haplotype 3 is the second most frequent (0.232), and haplotype 4 presents a low frequency (0.019), in the North haplotype 4 is the third most frequent (0.140), and haplotype 3 only reaches an intermediate frequency (0.088). The pairwise FST and the exact test of differentiation show genetic heterogeneity between both regions. Nei's genetic distance show that South and North present affinities with Bantu groups, although the North present the smallest genetic distance with the Mandenka, a Senegalese population. With respect to 3, haplotypes, haplotype I was the most frequent in both populations, followed by haplotype II, characteristic of sub-Saharan Africans. The high frequencies of haplotype III-Asian could indicate admixture with Native American populations. The differences observed between both Uruguayan regions could be explained by microevolutionary events as genetic drift, founder effects, differential admixture, and/or distinct origin of the African slaves introduced in those regions. Am. J. Hum. Biol. 2010. © 2009 Wiley-Liss, Inc. [source] Shipwrecks and founder effects: Divergent demographic histories reflected in Caribbean mtDNAAMERICAN JOURNAL OF PHYSICAL ANTHROPOLOGY, Issue 4 2005Antonio Salas Abstract During the period of the Atlantic slave trade (15th,19th centuries), millions of people were forced to move from Africa to many American destinations, changing dramatically the human landscape of the Americas. Here, we analyze mitochondrial DNA from two different American populations with African ancestry, with hitherto unknown European and Native American components. On the basis of historical records, African-Americans from Chocó (Colombia) and the Garífunas (or "Black Carib") of Honduras are likely to have had very different demographic histories, with a significant founder effect in the formation of the latter. Both the common features and differences are reflected in their mtDNA composition. Both show a minor component (,16%) from Native Central/South Americans and a larger component (,84%) from sub-Saharan Africans. The latter component is very diverse in the African-Americans from Chocó, similar to that of sub-Saharan Africans, but much less so in the Garífunas, with several mtDNA types elevated to high frequency, suggesting the action of genetic drift. Am J Phys Anthropol, 2005. © 2005 Wiley-Liss, Inc. [source] Ethnicity and gestational diabetes in New York City, 1995,2003BJOG : AN INTERNATIONAL JOURNAL OF OBSTETRICS & GYNAECOLOGY, Issue 8 2008DA Savitz Objective, To characterise the patterns of occurrence of gestational diabetes among a wide range of ethnic groups that reside in New York City. Design, Birth records and hospital discharge data were linked to more accurately assess the risk of gestational diabetes by ethnicity, compare risk in US-born to foreign-born women, and assess time trends. Setting, New York City. Population, All singleton live births occurring between 1995 and 2003. Methods, Multivariable binomial regression analysis of ethnicity and gestational diabetes, yielding adjusted risk ratios with non-Hispanic white women as the referent. Main outcome measure, Diagnosis of gestational diabetes on birth certificate or in hospital discharge. Results, Adjusted relative risks (aRRs) were modestly elevated for African-Americans and sub-Saharan Africans and somewhat higher (<2.0) for non-Hispanic Caribbeans, Hispanic Caribbeans, Central Americans, and South Americans. The aRR was 4.7 (95% CI = 4.6,4.9) for South Central Asians (with an absolute gestational diabetes risk of 14.3%), 2.8 (95% CI = 2.7,3.0) among South-East Asian and Pacific Islanders, and 2.3 (95% CI = 2.2,2.4) among East Asians. Among South Central Asians, the greatest risks were found for women from Bangladesh (aRR = 7.1, 95% CI = 6.8,7.3). Foreign-born women consistently had higher risk than US-born women. Risk for gestational diabetes increased over time among South Central Asians, some Hispanic groups, and African-Americans. Conclusions, Risk of gestational diabetes appears to vary markedly among ethnic groups, subject to potential artefacts associated with screening and diagnosis. These differences would have direct implications for health care and may suggest aetiologic hypotheses. [source] | |||||||||||||