Energy consumption of European and African shrews

Is the extremely high oxygen consumption of shrews due to an unusually high basal metabolism? In an attempt to answer this long-standing question, we have measured the oxygen consumption of 13 species of shrews of different origin: from Europe - Sorex araneus, S. Minutus, Neomys fodiens, Crocidura russula, and Suncus etruscus; from Africa - Crocidura bottegi, C. bicolor, C. jouvenetae; C. poensis, C. theresae, C. Wimmeri, C. flavescens, and C. giffardi, The measurements, taken over a period of 20-30 minutes, were made in small, closed-system chambers at 25°C. The metabolic rat our shrews of the subfamily Soricinae lies between the eman and minimum values of the Soricini (M=126.2 W0.52 cal/h and M=82.6 W0.53 cal/h, respectively), as recorded in the literature. Zhe average for the African Crocidurinae is much lower (M= 43.6 W0.67). The metabolic rate of the European Croccidura russula agrees with that of the African species. Thus, the Crocidurinae are characterized by a relatively low metabolic rate; the Soricinae, and in particular the tribe of the Soricini, by an extremely high metabolic rate. The tribes Neomyini and Blarinini occupy an intermediate position. These differences are also to be found at the level of the basal metabolism. This main difference between the two sub-families can most likely be explained by evolution in geographical isolation under differential climatic conditions: the Crocidurinae having evolved in tropical Africa and the Soricinae in temperate Eurasia

Hippocampal volume predicts fluid intelligence in musically trained people.

Recently, age-related hippocampal (HP) volume loss could be associated with a decrease in general fluid intelligence (gF). In the present study we investigated whether and how extensive musical training modulates human HP volume and gF performance. Previously, some studies demonstrated positive effects of musical training on higher cognitive functions such as learning and memory, associated with neural adaptations beyond the auditory domain. In order to detect possible associations between musical training and gF, we bilaterally segmented the HP formation and assessed the individual gF performance of people with different levels of musical expertise. Multiple regression analyses revealed that HP volume predicts gF in musicians but not in nonmusicians; in particular, bilaterally enhanced HP volume is associated with increased gF exclusively in musically trained people (amateurs and experts). This result suggests that musical training facilitates the recruitment of cognitive resources, which are essential for gF and linked to HP functioning. Musical training, even at a moderate level of intensity, can thus be considered as a potential strategy to decelerate age-related effects of cognitive decline. © 2013 Wiley Periodicals, Inc.

A burst of segmental duplications in the genome of the African great ape ancestor

It is generally accepted that the extent of phenotypic change between human and great apes is dissonant with the rate of molecular change. Between these two groups, proteins are virtually identical, cytogenetically there are few rearrangements that distinguish ape-human chromosomes, and rates of single-base-pair change and retrotransposon activity have slowed particularly within hominid lineages when compared to rodents or monkeys. Studies of gene family evolution indicate that gene loss and gain are enriched within the primate lineage. Here, we perform a systematic analysis of duplication content of four primate genomes (macaque, orang-utan, chimpanzee and human) in an effort to understand the pattern and rates of genomic duplication during hominid evolution. We find that the ancestral branch leading to human and African great apes shows the most significant increase in duplication activity both in terms of base pairs and in terms of events. This duplication acceleration within the ancestral species is significant when compared to lineage-specific rate estimates even after accounting for copy-number polymorphism and homoplasy. We discover striking examples of recurrent and independent gene-containing duplications within the gorilla and chimpanzee that are absent in the human lineage. Our results suggest that the evolutionary properties of copy-number mutation differ significantly from other forms of genetic mutation and, in contrast to the hominid slowdown of single-base-pair mutations, there has been a genomic burst of duplication activity at this period during human evolution.

ÁFRICA VERSUS EUROPA: CABO VERDE NO ATLÂNTICO MÉDIO

Este artigo visa a apresentar um contributo para a reflexão acerca da integração de Cabo Verde na CEDEAO (Comunidade Económica dos Estados da África Ocidental) e sobre a aproximação de Cabo Verde às RUP (Regiões Ultraperiféricas) e, posteriormente, à União Europeia, tirando-se proveito da realidade de uma Nação que se gerou e se vai consolidando a partir da cooperação de povos e culturas oriundos dos dois espaços geográficos referidos. A discussão não se deve somente à posição geográfica privilegiada do arquipélago, mas, igualmente, liga-se a aspectos de ordem cultural, política, económica, comercial e de segurança, com especial destaque para a estruturação do Estado-Nação em Cabo Verde.

O DEBATE CONTEMPORÂNEO SOBRE A NAÇÃO EM CABO VERDE: PERSPECTIVAS E PERPLEXIDADES

Este artigo procura compreender a integração regional do Arquipélago de Cabo Verde, na base do debate contemporâneo sobre a Nação. Resultado de cruzamento e convergência entre povos e culturas oriundos de dois espaços geográficos (África e Europa), a Nação cabo-verdiana afirma-se e consolida-se na margem dos debates perspetivados e delineados por diferentes gerações de intelectuais, políticos e académicos nacionais e estrangeiros. Estes procuram compreender e analisar a integração de Cabo Verde na Comunidade Económica dos Estados da África Ocidental (CEDEAO), a aproximação às Regiões Ultraperiféricas (RUP) e a Parceria Especial com a União Europeia (UE). A análise expressa no presente artigo, além de distinguir a posição geográfica privilegiada do arquipélago, enfatiza também aspetos de ordem cultural, política, económica, comercial e de segurança, relevantes para a construção da Nação em Cabo Verde.

Iowa Commission on the Status of African Americans Annual Report, Fiscal Year 2008

This publication of our 2008 Annual Report. This past year was beset with challenges and disappointments, but we were still able to forge ahead and register some significant accomplishments along the way. Our vision to organize our collective genius in a systematic way is beginning to take shape, and these efforts are reflected in this report. From various developments, like the making of a documentary and film of the Alexander Clark, Sr. story, to the partnership between the division and principal leadership in the faith community around the OCBI’s “Ten Point Plan”, one can envision the proverbial Black “phoenix” rising, renewed from the ashes of banal ideologies and practices. We will seize this opportunity, in conjunction with all of Iowa, to work together around the entire state, to produce a plan that reflects our collective interests, passions, and needs as we help create the Governor and Lt Governor’s vision of “One Iowa with One Unlimited Future.”

Iowa Commission on the Status of African Americans Annual Report, Fiscal Year 2006

A Public Intellectual recently suggested that I read the book Life Out Of Context by the very productive writer Walter Mosley. In this book, Mosley began to summarize a speech that was given by Harry Belafonte. Belafonte made a comparison between a particular Olympic relay race and the Civil Rights Movement. In the race, an experienced runner stumbled a little while passing the baton, and the race was lost. For Belafonte, this momentary slip was a metaphor for the failure of the Civil Rights Movement to “pass the baton” to the younger generation as “it moved past its original phase and into the latter part of the century.” Regardless of your views of the strengths and weaknesses of the Civil Rights Movement, I think all of us would agree that the current issues facing Black Iowa today--e.g., the need for economic development, increased educational achievement and more political involvement in our communities--demand our immediate attention and action. This urgency requires that we cross generational, class, and territorial boundaries within the state to collaborate among ourselves and with others to deal constructively with these issues. We cannot afford to have another “momentary slip.” Serving as the Administrator for ICSAA allows me to serve Black Iowa in a significant way, and Kimberly Cheeks and I in this Division look forward to the work ahead over the next several months and years. Working closely with Walter Reed, Director of the Department of Human Rights, along with so many others across this state, we are keenly aware that we are provided with a great opportunity to positively impact the quality of life for African-Americans in Iowa.

Iowa Commission on the Status of African-Americans Department of Human Rights Strategic Plan, 2004

The Commission on the Status of African-Americans, formerly known as the Commission on the Status of Blacks, was created by statute in 1988. The nine members of the commission are appointed by the Governor and represent each region of the State where there is a significant African-American population. Meetings are open to the public. The commission sets policy for and provides direction to the Division of the Status of African-Americans within the Department of Human Rights. The division administrator is appointed by the Governor and confirmed by the Iowa Senate.

Iowa Commission on the Status of African-Americans Department of Human Rights Strategic Plan, August 1999

The Commission on the Status of African-Americans, formerly known as the Commission on the Status of Blacks, was created by statute in 1988. The nine members of the commission are appointed by the Governor and represent each region of the State where there is a significant African-American population. Meetings are open to the public. The commission sets policy for and provides direction to the Division of the Status of African-Americans within the Department of Human Rights. The division administrator is appointed by the Governor and confirmed by the Iowa Senate.

Iowa Commission on the Status of African-Americans Department of Human Rights Strategic Plan, August 2000

The Commission on the Status of African-Americans, formerly known as the Commission on the Status of Blacks, was created by statute in 1988. The nine members of the commission are appointed by the Governor and represent each region of the State where there is a significant African-American population. Meetings are open to the public. The commission sets policy for and provides direction to the Division of the Status of African-Americans within the Department of Human Rights. The division administrator is appointed by the Governor and confirmed by the Iowa Senate.

Iowa Commission on the Status of African-Americans Department of Human Rights Strategic Plan, August 2001

The Commission on the Status of African-Americans, formerly known as the Commission on the Status of Blacks, was created by statute in 1988. The nine members of the commission are appointed by the Governor and represent each region of the State where there is a significant African-American population. Meetings are open to the public. The commission sets policy for and provides direction to the Division of the Status of African-Americans within the Department of Human Rights. The division administrator is appointed by the Governor and confirmed by the Iowa Senate.

Iowa Commission on the Status of African-Americans Department of Human Rights Strategic Plan, August 2002

The Commission on the Status of African-Americans, formerly known as the Commission on the Status of Blacks, was created by statute in 1988. The nine members of the commission are appointed by the Governor and represent each region of the State where there is a significant African-American population. Meetings are open to the public. The commission sets policy for and provides direction to the Division of the Status of African-Americans within the Department of Human Rights. The division administrator is appointed by the Governor and confirmed by the Iowa Senate.

Iowa Commission on the Status of African-Americans Department of Human Rights Strategic Plan, August 2003

The Commission on the Status of African-Americans, formerly known as the Commission on the Status of Blacks, was created by statute in 1988. The nine members of the commission are appointed by the Governor and represent each region of the State where there is a significant African-American population. Meetings are open to the public. The commission sets policy for and provides direction to the Division of the Status of African-Americans within the Department of Human Rights. The division administrator is appointed by the Governor and confirmed by the Iowa Senate.

Late Pan-African magmatism in the Himalaya: new geochronological and geochemical data from the Ordovician Tso Morari metagranites (Ladakh, NW India)

Two granitic plutons, the Tso Morari gneiss and the Rupshu metagranite, crop out in the Tso Morari area. The Polokongka La granite, classically interpreted as a young intrusion in the Tso Morari gneiss, has been recognized as the undeformed facies of the latter. Conventional isotope dilution U-Pb zircon dating on single-grain and small multi-grain fractions yielded magmatic ages of 479 +/- 2 Ma for the Tso Morari gneiss and the Polokongka La granite, and 482.5 +/- 1 Ma for the Rupshu granite. There is a great difference in zircon morphology between the Tso Morari gneiss (peraluminous type) and the Rupshu granite (alkaline type). This difference is confirmed by whole-rock chemistry. The Tso Morari gneiss is a typical deformed S-type granite, resulting from crustal anatexis. On the other hand, the Rupshu granite is an essentially metaluminous alkali-calcic intrusion derived from a different source material. Data compilation from other Himalayan Cambro-Ordovician granites reveals huge and widespread magmatic activity all along and beyond the northern Indian plate between 570 and 450 Ma, with a peak at 500-480 Ma. A major, continental-scale tectonic event is required to generate such a large magmatic belt; it has been tentatively compared to the Variscan post-orogenic extensional regime of Western Europe, as a late evolution stage of a Pan-African orogenic event.

The relationship between fear of falling and foot clearance in older people

Introduction : Fear of falling (FOF) is associated with falls and modifications in gait parameters. Foot clearance during walking is directly linked to tripping and falling. The relationship between FOF and foot Downloaded from http://gerontologist.oxfordjournals.org/ at Université & EPFL Lausanne on January 23, 2013 436 The Gerontological Society of America clearance has never been evaluated. Methods : Participants (N=568, aged 66 to 71 years, 57.2% women) underwent gait parameters measurements using footworn sensors. Specific foot clearance parameters evaluated included maximal and minimal heel and toe clearances and their variability. FOF was assessed using a single question. Results : Overall, 27.4% of the participants reported FOF. Compared to the others, participants with FOF had decreased maximal heel (28.9 vs 30.4 cm, p<.001) and toe clearance (12.5 vs 13.8 cm, p<.001), and decreased minimal toe clearance variability (SD 3.7 vs 4.0 cm, p<.001). Conclusion : These preliminary results suggest a relationship between FOF and foot clearance parameters. Multivariate analyses are underway.