Brit-Am
DNA and
Anthropology Updates
Updates in DNA studies along with Anthropological Notes of general interest with a particular emphasis on points pertinent to the study of Ancient Israelite Ancestral Connections to Western Peoples as explained in Brit-Am studies.
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Brit-Am Anthropology and DNA Update
Contents:
1. Cuban
mtDNA
and Y chromosomes
2. Better mental health of African Americans is not explained by social
relationships
3. Individualists and egalitarians are more optimistic
1. Cuban
mtDNA
and Y chromosomes
http://dienekes.blogspot.com/
Extract:
The Native American contribution to present-day Cubans accounted for 33% of the
maternal lineages, whereas Africa and Eurasia contributed 45% and 22% of the
lineages, respectively. This Native American substrate in Cuba cannot be traced
back to a single origin within the American continent, as previously suggested
by ancient DNA analyses. Strikingly, no Native American lineages were found for
the Y-chromosome, for which the Eurasian and African contributions were around
80% and 20%, respectively. CONCLUSIONS: While the ancestral Native American
substrate is still appreciable in the maternal lineages, the extensive process
of population admixture in Cuba has left no trace of the paternal Native
American lineages, mirroring the strong sexual bias in the admixture processes
taking place during colonial times.
2. Better mental health of African
Americans is not explained by social relationships
http://dienekes.blogspot.com/2008/07/better-mental-health-of-african.html
K. JILL KIECOLT et al.
ABSTRACT
Researchers often assume that the extent, quality, and effectiveness of personal
relationships explain why African Americans have relatively good mental health
despite experiencing high levels of stress. This study tests this assumption
using data from the 1990?1992 National Comorbidity Survey. Few racial
differences emerge in patterns of social relationships, and the nature and
quality of social relationships do not explain African Americans' resiliency on
mental health. Several aspects of social relationships benefit African
Americans' mental health more than Whites', but these moderating effects are
insubstantial. Hence, the data do not support the assumption. If social
relationships help explain the lack of racial differences in mental health,
their nature and effects must be more adequately conceptualized.
3. Individualists and egalitarians are
more optimistic
http://dienekes.blogspot.com/2008/07/individualists-and-egalitarians-are.html
Using mixed effect modeling, overall culture differences were small. Greater
individualism (Hofstede, 1980) was associated with greater optimism. Greater
egalitarianism (versus hierarchy, Schwartz, 1994) was consistently associated
with higher optimism. Claims of fundamental cultural differences were not
supported. Implications for cross-cultural research and applications are
discussed.
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