511 research outputs found

    In a state of emergency: power, class, and nationalist discourse in Lesotho

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    Paper presented at the Wits History Workshop: Democracy, Popular Precedents, Practice and Culture, 13-15 July, 1994

    Internal Control

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    Applying the Ablative Heat Shield to the Apollo Spacecraft

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    The Apollo program to land men on the moon is administered by the National Aeronautics and Space Administration. Production of the spacecraft command module has been assigned \u27to the North American Aviation Company. As a subcontractor to N.A.A., the Avco Corporation is carrying out the design and fabrication of the ablative heat shield for this module. Avco has the responsibility for the complete thermal design of the heat shield and for the analysis of any structural effect of the ablative material on the total vehicle. The environmental requirements which the heat shield must satisfy are determined by North American. The Apollo spacecraft command module houses the three-man crew during flight and is the only part of the spacecraft to re-enter the earth\u27s atmosphere at the completion of the lunar mission. It is a cone-shaped vehicle with a blunt base and is composed of an airtight aluminum inner crew compartment suspended within a stainless steel outer shell

    Effects of Language Context on Ratings of Shy and Unsociable Behaviors in English Language Learning Children

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    Purpose The primary goal of this study was to explore the effect of the language context on the socially withdrawn behaviors of school aged-children who are English Language Learners (ELLs) from middle to high SES backgrounds. This is one of the first studies to address the frequently confused concepts of shyness and unsociability as independent constructs within the ELL population. This study also investigated the feasibility of an experimental parent and child questionnaire that examines shyness and unsociability across native and English speaking contexts. Method Children and parents (34 ELL and 37 native English speaking) were administered an experimental questionnaire examining shy and unsociable behavior in native language and English-speaking contexts. Results Parents and children from the ELL group reported significantly higher ratings of shy behavior in English versus native language contexts, whereas unsociable ratings did not differ across language contexts. Conclusions Shyness and unsociability are distinguishable behaviors in ELL children and these constructs should be considered when examining withdrawal. Additionally, examining ELL children’s behavior across language contexts provides a valuable method for investigating language influenced behavioral problems. This study demonstrates the need for service providers to evaluate behavior across subtype and language context before pathologizing withdrawal in ELL children

    “Nkosi Sikelel’ iAfrika”

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    « Nkosi Sikelel’ iAfrika ». De l’esprit indépendant à la mobilisation politique. – « Nkosi Sikelel’ iAfrika » (Que Dieu bénisse l’Afrique), connu comme l’hymne africain, est un signifiant puissant pour le deuil, la rédemption et la célébration. Les tonalités méthodistes et les paroles du chant puisent leurs racines dans les contacts culturels avec les missionnaires. Ce chant occupe aussi une place importante dans le répertoire cérémonial de nombreuses églises indépendantes et a été traduit en plusieurs langues. Il fut également adopté par l’African National Congress (anc) puis par l’État sud-africain sous Nelson Mandela comme hymne national. Dans ses versions religieuses, le texte met l’accent sur le deuil du passé africain et se présente comme une prière pour la rédemption par Jésus et le Saint-Esprit. Les versions séculaires éliminent toute référence à Jésus et insistent sur l’inspiration spirituelle et l’élévation morale nécessaires aux dirigeants africains. Dans la version religieuse, l’Afrique occupe alors de manière métonymique la place d’un ancêtre disparu, vivant dans l’éternité en attendant la rédemption. Le chant politique transforme cette éternité en un présent dynamique, une vision de progrès. C’est à la fois un chant funèbre, un appel à l’espoir et un cri de joie. L’analyse des différentes versions de ce chant montre comment les notions de deuil et de rédemption influencent les idéaux religieux et la mobilisation politique. Les notions millénaires de temps se mêlent aux réalités politiques dans lesquelles l’Afrique devient elle-même la victime et l’héroïne d’un nouveau récit. Nous concluons cet article par une discussion sur le deuil comme paysage de mémoire et pratique symbolique dans les religions populaires et civiles en Afrique.“Nkosi Sikelel’ iAfrika” (“God Bless Africa”), known as the African anthem, is a powerful signifier for mourning, redemption, and celebration. The Methodist hymnody patterns and the text of the song belie its roots in missionary cultural contact. The song also figures prominently in the ceremonial repertoire of many independent churches and has been translated into several languages. Adoption of the song by the African National Congress (anc and subsequently by the South African state under Nelson Mandela as a national anthem are further iterations in its trajectory. In the religious versions, the text emphasizes mourning for Africa’s past and a prayer for redemption through Jesus and the Holy Spirit. The secular versions eliminate the reference to Jesus and focus on the spiritual inspiration and uplift needed by Africa’s leaders. Africa metonymically occupies the space of a departed ancestor, living in a timeless eternity while waiting for redemption in the religious version. The political song transforms this timeless eternity into an active present and an opportunity for future progress. It creates a landscape of memory that spans religious and political domains of action. Analyzing the contrasting versions of “God Bless Africa” reflects how concepts of mourning and redemption influence religious ideals and political mobilization. Millenarian notions of time interface with political realities in which Africa itself becomes both the victim and the hero of a new narrative. This paper concludes with a discussion of mourning as a landscape of memory and symbolic practice in African popular and civil religion

    Early life stress and macaque annygdala hypertrophy: preliminary evidence for a role for the serotonin transporter gene

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    Background: Children exposed to early life stress (ELS) exhibit enlarged amygdala volume in comparison to controls. the primary goal of this study was to examine amygdala volumes in bonnet macaques subjected to maternal variable foraging demand (VFD) rearing, a well-established model of ELS. Preliminary analyses examined the interaction of ELS and the serotonin transporter gene on amygdala volume. Secondary analyses were conducted to examine the association between amygdala volume and other stress-related variables previously found to distinguish VFD and non-VFD reared animals.Methods: Twelve VFD-reared and nine normally reared monkeys completed MRI scans on a 3T system (mean age = 5.2 years).Results: Left amygdala volume was larger in VFD vs. control macaques. Larger amygdala volume was associated with: high cerebrospinal fluid concentrations of corticotropin releasing-factor (CRF) determined when the animals were in adolescence (mean age = 2.7 years); reduced fractional anisotropy (FA) of the anterior limb of the internal capsule (ALIC) during young adulthood (mean age = 5.2 years) and timid anxiety-like responses to an intruder during full adulthood (mean age = 8.4 years). Right amygdala volume varied inversely with left hippocampal neurogenesis assessed in late adulthood (mean age = 8.7 years). Exploratory analyses also showed a gene-by-environment effect, with VFD-reared macaques with a single short allele of the serotonin transporter gene exhibiting larger amygdala volume compared to VFD-reared subjects with only the long allele and normally reared controls.Conclusion: These data suggest that the left amygdala exhibits hypertrophy after ELS, particularly in association with the serotonin transporter gene, and that amygdala volume variation occurs in concert with other key stress-related behavioral and neurobiological parameters observed across the lifecycle. Future research is required to understand the mechanisms underlying these diverse and persistent changes associated with ELS and amygdala volume.National Institute for Mental HealthNIMHNARSAD Mid-investigator AwardSuny Downstate Med Ctr, Dept Psychiat & Behav Sci, Brooklyn, NY 11203 USAUniversidade Federal de SĂŁo Paulo, Dept Psiquiatria, SĂŁo Paulo, BrazilMt Sinai Sch Med, Dept Psychiat, New York, NY USAMt Sinai Sch Med, Dept Neurosci, New York, NY USAMt Sinai Sch Med, Dept Radiol, New York, NY USANew York State Psychiat Inst & Hosp, New York, NY 10032 USAMichael E Debakey VA Med Ctr, Mental Hlth Care Line, Houston, TX USABaylor Coll Med, Menninger Dept Psychiat & Behav Sci, Houston, TX 77030 USAYale Univ, Sch Med, Dept Psychiat, New Haven, CT USANatl Ctr PTSD, Clin Neurosci Div, West Haven, CT USANew York State Psychiat Inst & Hosp, Dept Mol Imaging & Neuropathol, New York, NY 10032 USAColumbia Univ, Coll Phys & Surg, Dept Psychiat, New York, NY USAColumbia Univ, Coll Phys & Surg, Dept Pathol & Cell Biol, New York, NY USAComprehensive NeuroSci Corp, Westchester, NY USAUniv Miami Hlth Sytems, Dept Psychiat & Behav Sci, Miami, FL USAEmory Univ, Sch Med, Dept Psychiat & Behav Sci, Emory, GA USAUniversidade Federal de SĂŁo Paulo, Dept Psiquiatria, SĂŁo Paulo, BrazilNational Institute for Mental Health: R01MH65519-01National Institute for Mental Health: R01MH098073NIMH: R21MH066748NIMH: R01MH59990AWeb of Scienc

    Fisk-Gloeckler Suprathermal Proton Spectrum in the Heliosheath and the Local Interstellar Medium

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    Convergence of suprathermal keV-MeV proton and ion spectra approximately to the Fisk-Gloeckler (F-G) form j(E) = j(sub 0) E(sup -1.5) in Voyager land 2 heliosheath measurements is suggestive of distributed acceleration in Kolmogorov turbulence which may extend well beyond the heliopause into the local interstellar medium (LISM). Turbulence of this type is already indicated by interstellar radio scintillation measurements of electron density power spectra. Previously published extrapolations (Cooper et al., 2003, 2006) of the LISM proton spectrum from eV to GeV energies are highly consistent with the F-G power-law and further indicative of such turbulence and LISM effectiveness of the F-G cascade acceleration process. The LISM pressure computed from this spectrum well exceeds that from current estimates for the LISM magnetic field, so exchange of energy between the protons and the magnetic field would likely have a strong role in evolution of the turbulence as per the F-G theory and as long ago proposed for cosmic ray energies by Parker and others. Pressure-dependent estimates of the LISM field strength should not ignore this potentially strong and even dominant contribution from the plasma. Presence of high-beta suprathermal plasma on LISM field lines could significantly affect interactions with the heliospheric outer boundary region and might potentially account for distributed and more discrete features in ongoing measurements of energetic neutral emission from the Interstellar Boundary Explorer (IBEX) mission
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