914 research outputs found

    Verisimilitude

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    Letter from William J. MacLeod to Minor Rootes

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    Letter from Acting President of the University of Maine Portland-Gorham to Minor Rootes sharing the appraisals from the USO Tour.https://digitalcommons.usm.maine.edu/theatre-uso-tour/1010/thumbnail.jp

    F-wave and its use in the electrodiagnosis of neurological disorders

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    Aspects of the Earlier Development of Law and Punishment

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    Some interrelations between the psychology and philosophy of William James

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    This item was digitized by the Internet Archive

    A co-evolutionary arms race: trypanosomes shaping the human genome, humans shaping the trypanosome genome

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    <i>Trypanosoma brucei</i> is the causative agent of African sleeping sickness in humans and one of several pathogens that cause the related veterinary disease Nagana. A complex co-evolution has occurred between these parasites and primates that led to the emergence of trypanosome-specific defences and counter-measures. The first line of defence in humans and several other <i>catarrhine</i> primates is the trypanolytic protein apolipoprotein-L1 (APOL1) found within two serum protein complexes, trypanosome lytic factor 1 and 2 (TLF-1 and TLF-2). Two sub-species of <i>T. Brucei</i> have evolved specific mechanisms to overcome this innate resistance, <i>Trypanosoma brucei gambiense</i> and <i>Trypanosoma brucei rhodesiense</i>. In <i>T. b. Rhodesiense</i>, the presence of the serum resistance associated (SRA) gene, a truncated variable surface glycoprotein (VSG), is sufficient to confer resistance to lysis. The resistance mechanism of <i>T. b. Gambiense</i> is more complex, involving multiple components: reduction in binding affinity of a receptor for TLF, increased cysteine protease activity and the presence of the truncated VSG, <i>T. b. Gambiense</i>-specific glycoprotein <i>(TgsGP)</i>. In a striking example of co-evolution, evidence is emerging that primates are responding to challenge by <i>T. b. Gambiense</i> and <i>T. b. Rhodesiense</i>, with several populations of humans and primates displaying resistance to infection by these two sub-species

    Why do Nigerian manufacturing firms take action on AIDS?

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    This repository item contains a single issue of the Health and Development Discussion Papers, an informal working paper series that began publishing in 2002 by the Boston University Center for Global Health and Development. It is intended to help the Center and individual authors to disseminate work that is being prepared for journal publication or that is not appropriate for journal publication but might still have value to readers.OBJECTIVE: To identify differences between manufacturing firms in Nigeria that have undertaken HIV/AIDS prevention activities and those that have not as a step toward improving the targeting of HIV policies and interventions. METHODS: A survey of a representative sample of registered manufacturing firms in Nigeria, stratified by location, workforce size, and industrial sector. The survey was administered to managers of 232 firms representing most major industrial areas and sectors in March-April 2001. RESULTS: 45.3 percent of the firms’ managers received information about HIV/AIDS from a source outside the firm in 2000; 7.7 percent knew of an employee who was HIV-positive at the time of the survey; and 13.6 percent knew of an employee who had left the firm and/or died in service due to AIDS. Only 31.7 percent of firms took any action to prevent HIV among employees in 2000, and 23.9 percent had discussed the epidemic as a potential business concern. The best correlates of having taken action on HIV were knowledge of an HIV-positive employee or having lost an employee to AIDS (odds ratio [OR] 6.36, 95% confidence interval [CI]: 2.30, 17.57) and receiving information about the disease from an outside source (OR 7.83, 95% CI: 3.46, 17.69). CONCLUSIONS: Despite a nationwide HIV seroprevalence of 5.8 percent, as of 2001 most Nigerian manufacturing firm managers did not regard HIV/AIDS as a serious problem and had neither taken any action on it nor discussed it as a business issue. Providing managers with accurate, relevant information about the epidemic and practical prevention interventions might strengthen the business response to AIDS in countries like Nigeria
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