1,299 research outputs found

    Covariant Risk and Nutrient Credit Training

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    Every summer, a dead zone is created in the Chesapeake Bay. The dead zone is created by too much of a good thing: nutrients, especially nitrogen and phosphorus. The largest source of excess nutrients in the Chesapeake is agriculture; manure and artificial fertilizers are washed into streams that eventually reach the bay. In the bay, nitrogen and phosphorus create an algae bloom, which consumes all the dissolved oxygen. Some fish escape, but other creatures expire in this dead sea within the Chesapeake Bay. To reduce the excess nutrients reaching the bay, several states are experimenting with nutrient credit trading. A large part of the appeal is political: Nutrient credit trading is popular in an ideological climate hostile to regulation. Part of the appeal is a response to policy success. Pollution trading reduced acid rain at low costs, which raised hopes that environmental markets can produce outsized benefits at low costs. To date, nutrient credit trading has disappointed and it is likely to continue to disappoint. Better market design cannot remedy the inherent defects in nutrient credits. This Article identifies previously unidentified defects in nutrient credit markets, contributing to an already large literature on the shortcomings of nutrient credit trading. This Article adds to the weight of mounting evidence that nutrient credit trading cannot deliver improvements in water quality

    Understanding HIV/AIDS in the African Context

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    This book of readings is intended for courses in Global Health. The editors asked Prof. Stillwaggon to contribute a chapter summarizing her years of work on the spread of HIV/AIDS in populations among whom bacterial, fungal, parasitic, and viral diseases are extremely common, particularly in sub-Saharan Africa. Her work has demonstrated that differences in behavior cannot explain differences in HIV rates between world regions

    U.S. Army Procurement of Draft and Pack Animals in the Civil War Era

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    This article examines the Civil War era procurement of draft and pack animals. A statistical analysis of Army records shows that the procurement of mules and horses reflected their relative prevalence in the theaters in which military commands were located, presumably to economize on transport of the animals from point of requisition. Different characteristics of the two equines made mules especially desirable in Western commands and in units with large numbers of draft animals. No statistical support was found for the notion that the abuse resistance of the mule made it preferable in units where animal handlers were poorly monitored.Military; Procurement; War

    HIV and Concurrent Sexual Partnerships: Modelling the Role of Coital Dilution

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    Background: The concurrency hypothesis asserts that high prevalence of overlapping sexual partnerships explains extraordinarily high HIV levels in sub-Saharan Africa. Earlier simulation models show that the network effect of concurrency can increase HIV incidence, but those models do not account for the coital dilution effect (nonprimary partnerships have lower coital frequency than primary partnerships). Methods: We modify the model of Eaton et al (AIDS and Behavior, September 2010) to incorporate coital dilution by assigning lower coital frequencies to non-primary partnerships. We parameterize coital dilution based on the empirical work of Morris et al (PLoS ONE, December 2010) and others. Following Eaton et al, we simulate the daily transmission of HIV over 250 years for 10 levels of concurrency. Results: At every level of concurrency, our focal coital-dilution simulation produces epidemic extinction. Our sensitivity analysis shows that this result is quite robust; even modestly lower coital frequencies in non-primary partnerships lead to epidemic extinction. Conclusions: In order to contribute usefully to the investigation of HIV prevalence, simulation models of concurrent partnering and HIV epidemics must incorporate realistic degrees of coital dilution. Doing so dramatically reduces the role that concurrency can play in accelerating the spread of HIV and suggests that concurrency cannot be an important driver of HIV epidemics in sub-Saharan Africa. Alternative explanations for HIV epidemics in sub- Saharan Africa are needed

    \u27You moulded me like clay\u27: David Almond\u27s sexualised monsters

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    Naarah Sawers is an Alfred Deakin Post-Doctoral Research Fellow at Deakin University where she is researching environmental agendas in computer games for children. She has also published and researched in children\u27s literature in the area of feminist bio-ethics and agency.<br /

    All that is dark can become white: the rules of the game in Bend it Like Beckham

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    The &ldquo;light&rdquo; and uplifting film, Bend it Like Beckham (2002), is deconstructed to expose its passive ideologies that equate physical darkness with regressive cultural and social outlooks and practices. While Bend it Like Beckham constructs itself as a modern fairy tale of a girl achieving her dream of athletic opportunity and success (with a nice side-dish of romance), the film&rsquo;s privileging of whiteness is both a cultural and a gendered norm that must be desired and achieved before that dream may come true.<br /

    ā€˜You molded me like clayā€™: David Almondā€™s Sexualised Monsters

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    Monsters and the Gothic fiction that creates them are therefore technologies, narrative technologies that produce the perfect figure for negative identity. Monsters have to be everything the human is not and, in producing the negative of the human, these novels make way for the invention of human as white, male, middle-class, and heterosexual.&nbsp;(Halberstam, 1995, p.22). Something unusual is happening in some of the most well-regarded, contemporary British childrenā€™s fiction. David Almond and Neil Gaiman are investing their stories with a seemingly contemporary feminist agenda, but one that is profoundly troubled by psychoanalytic discourses that disrupt the narrativesā€™ overt excursions into a potentially positive gender re-acculturation of child audiences. Their books often show that girls can be strong and intelligent while boys can be sensitive, but the burgeoning sexual identities of the child protagonists appear to be incompatible with the new wave of gendered equity these stories ostensibly seek. In a recent collaborative essay with two of my colleagues teaching childrenā€™s literature at Deakin University, Australia, we considered the postfeminism of ā€˜other mothersā€™ and their fraught relationships with daughters in Neil Gaimanā€™s stories Coraline and The Mirror Mask (forthcoming). While Almondā€™s Skellig(1998) and Clay (2006) ostensibly tell very different fantastic tales, the differences, on closer inspection, seem only to relate to the gender of the protagonists. Gaimanā€™s girls and Almondā€™s boys undertake an identical Oedipal quest for heteronormative success, and in doing so reverse the politically correct bids for gender equality made on their narrative surfaces. When read through a psychoanalytical lens, the narratives also undo all the potential transformations of gendered politics made possible through the authorsā€™ employment of magical realism that could offer manifold ways to disrupt binary oppositions. Indeed, that all four stories rely on the blurring of fantasy and reality might be more telling still about the ambivalence with which feminism is tolerated and/or advanced in a progressive nation like Britain. In such a culture the theoretical premise of equality is acceptable, but strange fantasies emerge in response, and gender difference is rearticulated

    Economic Costs and Benefits of a Community-Based Lymphedema Management Program for Lymphatic Filariasis in Odisha State, India

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    Lymphatic filariasis afflicts 68 million people in 73 countries, including 17 million persons living with chronic lymphedema. The Global Program to Eliminate Lymphatic Filariasis aims to stop new infections and to provide care for persons already affected, but morbidity management programs have been initiated in only 24 endemic countries. We examine the economic costs and benefits of alleviating chronic lymphedema and its effects through a simple limb-care program. For Khurda District, Odisha State, India, we estimated lifetime medical costs and earnings losses due to chronic lymphedema and acute dermatolymphangioadenitis (ADLA) with and without a community-based limb-care program. The program would reduce economic costs of lymphedema and ADLA over 60 years by 55%. Savings of US$1,648 for each affected person in the workforce are equivalent to 1,258 days of labor. Per-person savings are more than 130 times the per-person cost of the program. Chronic lymphedema and ADLA impose a substantial physical and economic burden on the population in filariasis-endemic areas. Low-cost programs for lymphedema management based on limb washing and topical medication for infection are effective in reducing the number of ADLA episodes and stopping progression of disabling and disfiguring lymphedema. With reduced disability, people are able to work longer hours, more days per year, and in more strenuous, higher-paying jobs, resulting in an important economic benefit to themselves, their families, and their communities. Mitigating the severity of lymphedema and ADLA also reduces out-of-pocket medical expense. Disclaimer: The findings and conclusions in this report are those of the authors and do not necessarily represent the views of CDC

    Unemployment and the Structure of Labor Demand

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    Peer Reviewedhttp://deepblue.lib.umich.edu/bitstream/2027.42/68858/2/10.1177_048661346900100104.pd
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