Margaret Bush Wilson

Margaret Bush Wilson was a woman of highly exceptional stature. Bush accomplished much in her life; the most prominent being the first female on the N.A.A.C.P. national board of Directors. Much of her career consisted of civil rights and urban development. Before Mrs. Bush focused on her civil rights path, she was valedictorian of her graduating high school class. After completing her high school career, she began to study abroad, traveling to over six countries. These included: England, France, Ceylon, Japan, the Hawaiian Islands and her most extraordinary visit to India. Here Margaret met and spoke with Mahatma Gandhi which fueled her passion of the civil rights movement in the United States. Mrs. Bush pursued a law degree at Lincoln University Law School after completing her Bachelor’s at Talladega University. On top of her extraordinary accomplishments, Margaret Bush possessed the unique quality of appearing 10 years younger than her real age, reflecting her strong spirit and compassion towards humanity.

EVOCAÇÃO POÉTICA : O velar e o desvelar da obra pictórica Menino morto de Cândido Portinari à luz das concepções de Paul Tillich e de Martin Heidegger sobre as artes

A arte sempre esteve presente entre os humanos como um grande mistério. Sua característica polissêmica nos desafia a pensá-la como algo sempre aberto. Isto é, livre para que os indivíduos a experimentem de formas diversas. Nossa intenção, ao escolher a tela Menino morto do pintor Cândido Portinari, é mostrar que o encontro com uma obra de arte é forçosamente atual, vivo, surpreendente, extraordinário... Não apenas como um mero objeto de prazer, mas, sobretudo, como possibilidades de desvelar experiências originárias, abrindo gamas de sentidos que ajudam os seres humanos a significar a própria existência. Para seguir na investigação, privilegiam-se, nesta dissertação, os estudos sobre as artes do teólogo Paul Tillich e do filósofo Martin Heidegger. Para Tillich, numa obra de arte deve-se buscar o que se esconde no inaparente, pois é aí que reside a sua substância. Assim, na arte, como em qualquer manifestação cultural, por mais secular que aparente ser, se expressa sempre uma preocupação última. Para Heidegger, a arte é fonte de revelação da verdade. Todavia, essa revelação traz em si o ocultamento da mesma verdade, posto que a verdade e a não-verdade acontecem simultaneamente na obra de arte. Portanto, à luz dos estudos feitos por esses dois autores, tentamos captar o desnudar de Menino morto .(AU)

EVOCAÇÃO POÉTICA : O velar e o desvelar da obra pictórica Menino morto de Cândido Portinari à luz das concepções de Paul Tillich e de Martin Heidegger sobre as artes

A arte sempre esteve presente entre os humanos como um grande mistério. Sua característica polissêmica nos desafia a pensá-la como algo sempre aberto. Isto é, livre para que os indivíduos a experimentem de formas diversas. Nossa intenção, ao escolher a tela Menino morto do pintor Cândido Portinari, é mostrar que o encontro com uma obra de arte é forçosamente atual, vivo, surpreendente, extraordinário... Não apenas como um mero objeto de prazer, mas, sobretudo, como possibilidades de desvelar experiências originárias, abrindo gamas de sentidos que ajudam os seres humanos a significar a própria existência. Para seguir na investigação, privilegiam-se, nesta dissertação, os estudos sobre as artes do teólogo Paul Tillich e do filósofo Martin Heidegger. Para Tillich, numa obra de arte deve-se buscar o que se esconde no inaparente, pois é aí que reside a sua substância. Assim, na arte, como em qualquer manifestação cultural, por mais secular que aparente ser, se expressa sempre uma preocupação última. Para Heidegger, a arte é fonte de revelação da verdade. Todavia, essa revelação traz em si o ocultamento da mesma verdade, posto que a verdade e a não-verdade acontecem simultaneamente na obra de arte. Portanto, à luz dos estudos feitos por esses dois autores, tentamos captar o desnudar de Menino morto .(AU)

HERDEIROS DE UMA TRADIÇÃO: UMA INVESTIGAÇÃO DOS FUNDAMENTOS TEOLÓGICO- IDEOLÓGICOS DO CONSERVADORISMO METODISTA NA CRISE DA DÉCADA DE SESSENTA

Este trabalho estuda uma crise vivida pela Igreja Metodista na segunda metade da década de sessenta. Influenciado pelo ambiente político da ditadura militar, o metodismo brasileiro foi campo de um embate entre as alas liberais e conservadoras da denominação. Palco deste embate foi a Faculdade de Teologia e o II Concílio Geral Extraordinário, em 1968, além de uma série de eventos que a ele se seguiram durante os anos de 1969 e 1970. A pesquisa problematiza os fundamentos teológicos e ideológicos que fundamentaram as atitudes das alas conservadoras do metodismo neste conflito, um aspecto pouco considerado pela historiografia sobre o tema. A principal suspeita é a de que as posturas conservadoras decorreram de uma tradição centenária, trazida pelos missionários norte-americanos, quando da implantação do Protestantismo no Brasil. Esta tradição transformou-se numa espécie de Ethos do protestantismo brasileiro, entre o final do século XIX e meados do XX. A postura dos conservadores configura-se, assim, numa reação ao Ethos ameaçado por novos atores do campo religioso e pelas demandas da sociedade em conflito.(AU)

HERDEIROS DE UMA TRADIÇÃO: UMA INVESTIGAÇÃO DOS FUNDAMENTOS TEOLÓGICO- IDEOLÓGICOS DO CONSERVADORISMO METODISTA NA CRISE DA DÉCADA DE SESSENTA

Este trabalho estuda uma crise vivida pela Igreja Metodista na segunda metade da década de sessenta. Influenciado pelo ambiente político da ditadura militar, o metodismo brasileiro foi campo de um embate entre as alas liberais e conservadoras da denominação. Palco deste embate foi a Faculdade de Teologia e o II Concílio Geral Extraordinário, em 1968, além de uma série de eventos que a ele se seguiram durante os anos de 1969 e 1970. A pesquisa problematiza os fundamentos teológicos e ideológicos que fundamentaram as atitudes das alas conservadoras do metodismo neste conflito, um aspecto pouco considerado pela historiografia sobre o tema. A principal suspeita é a de que as posturas conservadoras decorreram de uma tradição centenária, trazida pelos missionários norte-americanos, quando da implantação do Protestantismo no Brasil. Esta tradição transformou-se numa espécie de Ethos do protestantismo brasileiro, entre o final do século XIX e meados do XX. A postura dos conservadores configura-se, assim, numa reação ao Ethos ameaçado por novos atores do campo religioso e pelas demandas da sociedade em conflito.(AU)

An epidemic of tuberculosis with a high rate of tuberculin anergy among a population previously unexposed to tuberculosis, the Yanomami Indians of the Brazilian Amazon

A survey of an emerging tuberculosis epidemic among the Yanomami Indians of the Amazonian rain forest provided a unique opportunity to study the impact of tuberculosis on a population isolated from contact with the tubercle bacillus for millennia until the mid-1960s. Within the Yanomami population, an extraordinary high prevalence of active tuberculosis (6.4% of 625 individuals clinically examined) was observed, indicating a high susceptibility to disease, even among bacille Calmette–Guérin-vaccinated individuals. Observational studies on cell-mediated and humoral immune responses of the Yanomami Indians compared with contemporary residents of the region suggest profound differences in immunological responsiveness to Mycobacterium tuberculosis infection. Among the Yanomami, a very high prevalence of tuberculin skin test anergy was found. Of patients with active tuberculosis, 46% had purified protein derivative of tuberculosis reactions <10 mm; similarly 58% of recent bacillus Calmette–Guérin vaccines exhibited skin test reactions <5 mm. The Yanomami also had higher titers of antibodies against M. tuberculosis glycolipid antigens (>70%) than the control subjects comprised of Brazilians of European descent (14%). The antibodies were mostly of the IgM isotype. Among the tuberculosis patients who also produced IgG antibodies, the titers of IgG4 were significantly higher among the Yanomami than in the control population. Although it was not possible to analyze T-cell responses or patterns of lymphokine production in vitro because of the remoteness of the villages from laboratory facilities, the results suggest that the first encounter of the Yanomami Indian population with tuberculosis engenders a diminished cell-mediated immune response and an increased production antibody responses, relative to other populations with extensive previous contact with the pathogen. These findings suggest that tuberculosis may represent a powerful selective pressure on human evolution that over centuries has shaped the nature of human immune responses to infection.

A system for functional analysis of Ebola virus glycoprotein

Ebola virus causes hemorrhagic fever in humans and nonhuman primates, resulting in mortality rates of up to 90%. Studies of this virus have been hampered by its extraordinary pathogenicity, which requires biosafety level 4 containment. To circumvent this problem, we developed a novel complementation system for functional analysis of Ebola virus glycoproteins. It relies on a recombinant vesicular stomatitis virus (VSV) that contains the green fluorescent protein gene instead of the receptor-binding G protein gene (VSVΔG*). Herein we show that Ebola Reston virus glycoprotein (ResGP) is efficiently incorporated into VSV particles. This recombinant VSV with integrated ResGP (VSVΔG*-ResGP) infected primate cells more efficiently than any of the other mammalian or avian cells examined, in a manner consistent with the host range tropism of Ebola virus, whereas VSVΔG* complemented with VSV G protein (VSVΔG*-G) efficiently infected the majority of the cells tested. We also tested the utility of this system for investigating the cellular receptors for Ebola virus. Chemical modification of cells to alter their surface proteins markedly reduced their susceptibility to VSVΔG*-ResGP but not to VSVΔG*-G. These findings suggest that cell surface glycoproteins with N-linked oligosaccharide chains contribute to the entry of Ebola viruses, presumably acting as a specific receptor and/or cofactor for virus entry. Thus, our VSV system should be useful for investigating the functions of glycoproteins from highly pathogenic viruses or those incapable of being cultured in vitro.

Biodiversity of Costa Rican salamanders: Implications of high levels of genetic differentiation and phylogeographic structure for species formation

Although salamanders are characteristic amphibians in Holarctic temperate habitats, in tropical regions they have diversified evolutionarily only in tropical America. An adaptive radiation centered in Middle America occurred late in the history of a single clade, the supergenus Bolitoglossa (Plethodontidae), and large numbers of species now occur in diverse habitats. Sublineages within this clade decrease in number from the northern to southern parts of Middle America, and in Costa Rica, there are but three. Despite this phylogenetic constraint, Costa Rica has many species; the number of salamander species on one local elevational transect in the Cordillera de Talamanca may be the largest for any such transect in the world. Extraordinary variation in sequences of the mitochondrial gene cytochrome b within a clade of the genus Bolitoglossa in Costa Rica reveals strong phylogeographic structure within a single species, Bolitoglossa pesrubra. Allozymic variation in 19 proteins reveals a pattern largely concordant with the mitochondrial DNA phylogeography. More species exist than are currently recognized. Diversification occurs in restricted geographic areas and involves sharp geographic and elevational differentiation and zonation. In their degree of genetic differentiation at a local scale, these species of the deep tropics exceed the known variation of extratropical salamanders, which also differ in being less restricted in elevational range. Salamanders display “tropicality” in that although speciose, they are usually local in distribution and rare. They display strong ecological and physiological differentiation that may contribute importantly to morphological divergence and species formation.

Drug resistant tuberculosis in prisons in Azerbaijan: case study

Objectives: To document the existence of drug resistance in a tuberculosis treatment programme that adheres strictly to the DOTS principles (directly observed treatment, short course) and to determine the extent of drug resistance in a prison setting in one of the republics of the former Soviet Union.

Multiscale assessment of patterns of avian species richness

The search for a common cause of species richness gradients has spawned more than 100 explanatory hypotheses in just the past two decades. Despite recent conceptual advances, further refinement of the most plausible models has been stifled by the difficulty of compiling high-resolution databases at continental scales. We used a database of the geographic ranges of 2,869 species of birds breeding in South America (nearly a third of the world's living avian species) to explore the influence of climate, quadrat area, ecosystem diversity, and topography on species richness gradients at 10 spatial scales (quadrat area, ≈12,300 to ≈1,225,000 km2). Topography, precipitation, topography × latitude, ecosystem diversity, and cloud cover emerged as the most important predictors of regional variability of species richness in regression models incorporating 16 independent variables, although ranking of variables depended on spatial scale. Direct measures of ambient energy such as mean and maximum temperature were of ancillary importance. Species richness values for 1° × 1° latitude-longitude quadrats in the Andes (peaking at 845 species) were ≈30–250% greater than those recorded at equivalent latitudes in the central Amazon basin. These findings reflect the extraordinary abundance of species associated with humid montane regions at equatorial latitudes and the importance of orography in avian speciation. In a broader context, our data reinforce the hypothesis that terrestrial species richness from the equator to the poles is ultimately governed by a synergism between climate and coarse-scale topographic heterogeneity.

Regional and cellular fractionation of working memory

This chapter recounts efforts to dissect the cellular and circuit basis of a memory system in the primate cortex with the goal of extending the insights gained from the study of normal brain organization in animal models to an understanding of human cognition and related memory disorders. Primates and humans have developed an extraordinary capacity to process information “on line,” a capacity that is widely considered to underlay comprehension, thinking, and so-called executive functions. Understanding the interactions between the major cellular constituents of cortical circuits—pyramidal and nonpyramidal cells—is considered a necessary step in unraveling the cellular mechanisms subserving working memory mechanisms and, ultimately, cognitive processes. Evidence from a variety of sources is accumulating to indicate that dopamine has a major role in regulating the excitability of the cortical circuitry upon which the working memory function of prefrontal cortex depends. Here, I describe several direct and indirect intercellular mechanisms for modulating working memory function in prefrontal cortex based on the localization of dopamine receptors on the distal dendrites and spines of pyramidal cells and on interneurons in the prefrontal cortex. Interactions between monoamines and a compromised cortical circuitry may hold the key to understanding the variety of memory disorders associated with aging and disease.

Functional genomics

Complete genome sequences are providing a framework to allow the investigation of biological processes by the use of comprehensive approaches. Genome analysis also is having a dramatic impact on medicine through its identification of genes and mutations involved in disease and the elucidation of entire microbial gene sets. Studies of the sequences of model organisms, such as that of the nematode worm Caenorhabditis elegans, are providing extraordinary insights into development and differentiation that aid the study of these processes in humans. The field of functional genomics seeks to devise and apply technologies that take advantage of the growing body of sequence information to analyze the full complement of genes and proteins encoded by an organism.

Characteristics of the deep ocean carbon system during the past 150,000 years: ΣCO2 distributions, deep water flow patterns, and abrupt climate change

Studies of carbon isotopes and cadmium in bottom-dwelling foraminifera from ocean sediment cores have advanced our knowledge of ocean chemical distributions during the late Pleistocene. Last Glacial Maximum data are consistent with a persistent high-ΣCO2 state for eastern Pacific deep water. Both tracers indicate that the mid-depth North and tropical Atlantic Ocean almost always has lower ΣCO2 levels than those in the Pacific. Upper waters of the Last Glacial Maximum Atlantic are more ΣCO2-depleted and deep waters are ΣCO2-enriched compared with the waters of the present. In the northern Indian Ocean, δ13C and Cd data are consistent with upper water ΣCO2 depletion relative to the present. There is no evident proximate source of this ΣCO2-depleted water, so I suggest that ΣCO2-depleted North Atlantic intermediate/deep water turns northward around the southern tip of Africa and moves toward the equator as a western boundary current. At long periods (>15,000 years), Milankovitch cycle variability is evident in paleochemical time series. But rapid millennial-scale variability can be seen in cores from high accumulation rate series. Atlantic deep water chemical properties are seen to change in as little as a few hundred years or less. An extraordinary new 52.7-m-long core from the Bermuda Rise contains a faithful record of climate variability with century-scale resolution. Sediment composition can be linked in detail with the isotope stage 3 interstadials recorded in Greenland ice cores. This new record shows at least 12 major climate fluctuations within marine isotope stage 5 (about 70,000–130,000 years before the present).

Star scientists and institutional transformation: Patterns of invention and innovation in the formation of the biotechnology industry

The most productive (“star”) bioscientists had intellectual human capital of extraordinary scientific and pecuniary value for some 10–15 years after Cohen and Boyer’s 1973 founding discovery for biotechnology [Cohen, S., Chang, A., Boyer, H. & Helling, R. (1973) Proc. Natl. Acad. Sci. USA 70, 3240–3244]. This extraordinary value was due to the union of still scarce knowledge of the new research techniques and genius and vision to apply them in novel, valuable ways. As in other sciences, star bioscientists were very protective of their techniques, ideas, and discoveries in the early years of the revolution, tending to collaborate more within their own institution, which slowed diffusion to other scientists. Close, bench-level working ties between stars and firm scientists were needed to accomplish commercialization of the breakthroughs. Where and when star scientists were actively producing publications is a key predictor of where and when commercial firms began to use biotechnology. The extent of collaboration by a firm’s scientists with stars is a powerful predictor of its success: for an average firm, 5 articles coauthored by an academic star and the firm’s scientists result in about 5 more products in development, 3.5 more products on the market, and 860 more employees. Articles by stars collaborating with or employed by firms have significantly higher rates of citation than other articles by the same or other stars. The U.S. scientific and economic infrastructure has been particularly effective in fostering and commercializing the bioscientific revolution. These results let us see the process by which scientific breakthroughs become economic growth and consider implications for policy.

Electrospray ionization mass spectrometry analysis of changes in phospholipids in RBL-2H3 mastocytoma cells during degranulation

Biological membranes contain an extraordinary diversity of lipids. Phospholipids function as major structural elements of cellular membranes, and analysis of changes in the highly heterogeneous mixtures of lipids found in eukaryotic cells is central to understanding the complex functions in which lipids participate. Phospholipase-catalyzed hydrolysis of phospholipids often follows cell surface receptor activation. Recently, we demonstrated that granule fusion is initiated by addition of exogenous, nonmammalian phospholipases to permeabilized mast cells. To pursue this finding, we use positive and negative mode Fourier-transform ion cyclotron resonance mass spectrometry (FTICR-MS) to measure changes in the glycerophospholipid composition of total lipid extracts of intact and permeabilized RBL-2H3 (mucosal mast cell line) cells. The low energy of the electrospray ionization results in efficient production of molecular ions of phospholipids uncomplicated by further fragmentation, and changes were observed that eluded conventional detection methods. From these analyses we have spectrally resolved more than 130 glycerophospholipids and determined changes initiated by introduction of exogenous phospholipase C, phospholipase D, or phospholipase A2. These exogenous phospholipases have a preference for phosphatidylcholine with long polyunsaturated alkyl chains as substrates and, when added to permeabilized mast cells, produce multiple species of mono- and polyunsaturated diacylglycerols, phosphatidic acids, and lysophosphatidylcholines, respectively. The patterns of changes of these lipids provide an extraordinarily rich source of data for evaluating the effects of specific lipid species generated during cellular processes, such as exocytosis.