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  • About
  • The Global ETD Search service is a free service for researchers to find electronic theses and dissertations. This service is provided by the Networked Digital Library of Theses and Dissertations.
    Our metadata is collected from universities around the world. If you manage a university/consortium/country archive and want to be added, details can be found on the NDLTD website.
1

Gang Injunctions Effects: The Experiences of Residents and Enjoined Gang Members

Burnett, Natasha R 01 January 2019 (has links)
Civil gang injunctions (CGIs) are bans on nuisance behavior that have been enacted against gang members. Numerous studies conducted on the efficacy of CGIs have proven that they have little to no long-term effects on the communities in which they are implemented, nor on the gang members enjoined under them and their gang activities. The purpose of this empirical, phenomenological interpretative analysis study was to (a) determine the sociofamilial effects of CGIs on community residents; (b) determine the effects of CGIs on the behaviors and activities of enjoined gang members; and (c) determine the overall efficacy of CGIs based on the perspectives of community residents and enjoined gang members, with the goal of creating avenues to improve CGIs or eliminate them, if necessary. The theoretical framework for this study was Berger and Luckmann's social construction theory. A total of 7 anonymous phone interviews were conducted with community residents, enjoined gang members, and local law enforcement living and/or working in the enjoined neighborhood during the implementation of the first gang injunction in Memphis, TN. Data from these interviews were coded for thematic analysis and constant comparison. The findings were mixed in that some participants expressed that the injunction had positive results for a while and others expressed that it had a negative effect on the community. It was found that the injunction was positively effective, but only on a short-term basis, and that consistent introduction of community resources to address underlying issues that lead to crime would have been a better solution.
2

Racialized Terror and the Colour Line: Racial Profiling and Policing Headwear in Schools / Terreur racialisées et la ligne de couleur: le profilage racial et Couvre-chef de police dans les écoles

Puddicombe, Brian 31 May 2011 (has links)
Through the simple action of covering one’s head with the wrong type of apparel, at the wrong time, and in the wrong spaces, Black and racialized youth exist in a hostile environment where their identities are reconstructed and relabeled according to dominant economic-political needs. This study interrogates and ruptures dominant notions of how space, identity and power are constructed, confronted, engaged, negotiated and resisted by Black and racialized youth in greater Toronto Area (GTA) schools. In an atmosphere of zero-tolerance toward policing youth violence, the anti-gang focus of the Safe Schools headwear policies institutionalize a ‘colour-coded’ link between crime, violence and race. Through ethnographic narrative inquiry this study critically interrogates the multiplicity of ways how the collision between zero-tolerance approaches toward regulating school violence and the policing of specific types of headwear and bodies results in differential outcomes and impacts on Black students and other racialized groups.
3

Racialized Terror and the Colour Line: Racial Profiling and Policing Headwear in Schools / Terreur racialisées et la ligne de couleur: le profilage racial et Couvre-chef de police dans les écoles

Puddicombe, Brian 31 May 2011 (has links)
Through the simple action of covering one’s head with the wrong type of apparel, at the wrong time, and in the wrong spaces, Black and racialized youth exist in a hostile environment where their identities are reconstructed and relabeled according to dominant economic-political needs. This study interrogates and ruptures dominant notions of how space, identity and power are constructed, confronted, engaged, negotiated and resisted by Black and racialized youth in greater Toronto Area (GTA) schools. In an atmosphere of zero-tolerance toward policing youth violence, the anti-gang focus of the Safe Schools headwear policies institutionalize a ‘colour-coded’ link between crime, violence and race. Through ethnographic narrative inquiry this study critically interrogates the multiplicity of ways how the collision between zero-tolerance approaches toward regulating school violence and the policing of specific types of headwear and bodies results in differential outcomes and impacts on Black students and other racialized groups.
4

Stochastic Models Suggest Guidelines for Protocols with Novel HIV-1 Interventions

Gupta, Vipul January 2017 (has links) (PDF)
The treatment of human immunodeficiency virus (HIV-1) infection faces the challenge of drug resistance. The high mutation rate of HIV-1 allows it to develop resistance against all available drugs. New mechanisms of intervention that do not succumb to failure through resistance are thus being explored. Mutagens that increase the viral mutation rate are a promising class of drugs. They can drive HIV-1 past a critical mutation rate, called the error threshold, and induce a catastrophic loss of genetic information. The treatment duration for a mutagen to drive HIV-1 beyond this error threshold is not yet estimated. We devise a detailed stochastic simulation of HIV-1 infection to estimate this duration. The simulations predict that the required duration is inversely proportional to the difference between the mutation rate induced by a mutagen and the error threshold. This scaling is robust to changes in simulation parameters. Using this scaling, we estimate the required duration of treatment with mutagens to be many years. Unfortunately, all available drugs, including mutagens, fail to clear the infection because HIV-1 establishes a reservoir of latently infected cells harbouring silent HIV-1 integrated genomes. A new \shock and kill" strategy that aims to activate latent cells and render them susceptible to immune killing or viral cytopathicity and thus to eradicate the HIV-1 latent reservoir has been suggested. Several latency reversal agents (LRAs) have been developed. Individual LRAs fail to show any decline in the HIV-1 latent reservoir in clinical trials. Combinations of LRAs have been tested in a few in-vitro and ex-vivo experiments. It has been found that in combination LRAs act synergistically. Finding the drug concentrations that yield the maximum synergy may be helpful in achieving a sterilizing cure. Here, we develop an intracellular model to estimate these drug concentrations. We choose drugs from two different classes of LRAs and show that our model captures quantitatively recent in-vitro experiments of their activity individually and in combination. With this model, we estimate the concentrations of the drugs required to obtain the maximum synergy. Strong CD8+ T cell responses against viruses have been associated with low levels of viremia. Elite controllers of HIV-1, who are known to have low or undetectable viremia, mount a cross-reactive CD8+ T cell response against the pathogen which controls viral mutation-driven escape from immune activity. These cross-reactive responses are against specific epitopes of HIV-1. Our goal was to examine whether such epitopes could be identified systematically so that a cross-reactive immune response could be induced by using these epitopes as immunogens. Immune recognition of an epitope involves two parts: presentation of the epitope, or peptide, by the major histocompatibility complex (MHC) molecules in the host and high a finity binding of the peptide-MHC complex with a T cell receptor (TCR). Immune escape could occur at either of these steps. Here, we examined the first step. We devise the following procedure to identify peptides that sustain HLA binding despite mutations. First, from the full length HIV-1 (HCV) proteome, we identify viral peptides that bind tightly with MHC molecules using the software NetMHCpan2.8. Next, we pick the peptides and their complementary MHC molecules that yield tight binding and mutate the peptides bit by bit to examine whether binding was compromised. We identify several viral peptide-MHC pairs that display tight binding despite all possible single mutations of the peptides both with HIV-1 and HCV. These peptides present candidates which can be tested for their TCR binding and cross-reactive immunogenic potential.

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