Embryonic Mutant Huntingtin Aggregate Formation in Mouse Models of Huntington’s Disease

The role of aggregate formation in the pathophysiology of Huntington’s disease (HD) remains uncertain. However, the temporal appearance of aggregates tends to correlate with the onset of symptoms and the numbers of neuropil aggregates correlate with the progression of clinical disease. Using highly sensitive immunohistochemical methods we have detected the appearance of diffuse aggregates during embryonic development in the R6/2 and YAC128 mouse models of HD. These are initially seen in developing axonal tracts and appear to spread throughout the cerebrum in the early neonate

An implementation of a dynamic negotiation model for competitive and cooperative agents.

Agent technology evolved from number of disciplines such as object technology, distributed computing and artificial intelligence. Agents are supposed to autonomously engage in several types of dialogues to attain their design objectives. With the emergence of highly dynamic and uncertain e-commerce, there is currently a growing interest to develop negotiating software agents that can engage in buying and selling in a virtual marketplace. In this thesis report we propose a framework for automated dynamic negotiation among competitive and cooperative software agents. These agents are facilitated with BDI model of agency capabilities to accomplish dynamic negotiation. They make use of Case Based Reasoning techniques to learn from their previous experiences over a period of time. This framework also uses Ontology to equip agents with domain specific knowledge for reasoning purposes during dynamic negotiation. Our proposed framework suggests that it is possible to build software agents, which model limited aspects of dynamic negotiation. Paper copy at Leddy Library: Theses & Major Papers - Basement, West Bldg. / Call Number: Thesis2002 .C475. Source: Masters Abstracts International, Volume: 41-05, page: 1462. Adviser: Walid S. Saba. Thesis (M.Sc.)--University of Windsor (Canada), 2002

Costs of streamlined HIV care delivery in rural Ugandan and Kenyan clinics in the SEARCH Studys.

OBJECTIVES/DESIGN:As antiretroviral therapy (ART) rapidly expands in sub-Saharan Africa using new efficient care models, data on costs of these approaches are lacking. We examined costs of a streamlined HIV care delivery model within a large HIV test-and-treat study in Uganda and Kenya. METHODS:We calculated observed per-person-per-year (ppy) costs of streamlined care in 17 health facilities in SEARCH Study intervention communities (NCT: 01864603) via micro-costing techniques, time-and-motion studies, staff interviews, and administrative records. Cost categories included salaries, ART, viral load testing, recurring goods/services, and fixed capital/facility costs. We then modeled costs under three increasingly efficient scale-up scenarios: lowest-cost ART, centralized viral load testing, and governmental healthcare worker salaries. We assessed the relationship between community-specific ART delivery costs, retention in care, and viral suppression. RESULTS:Estimated streamlined HIV care delivery costs were $291/ppy. ART ($117/ppy for TDF/3TC/EFV [40%]) and viral load testing ($110/ppy for 2 tests/year [39$51/ppy), recurring costs ($5/ppy), and fixed costs ($7/ppy). Optimized ART scale-up with lowest-cost ART ($100/ppy), annual viral load testing ($24/ppy), and governmental healthcare salaries ($27/ppy), lowered streamlined care cost to$163/ppy. We found clinic-to-clinic heterogeneity in retention and viral suppression levels versus streamlined care delivery costs, but no correlation between cost and either retention or viral suppression. CONCLUSIONS:In the SEARCH Study, streamlined HIV care delivery costs were similar to or lower than prior estimates despite including viral load testing; further optimizations could substantially reduce costs further. These data can inform global strategies for financing ART expansion to achieve UNAIDS 90-90-90 targets

Statistical analysis of logarithmic asset returns

In the study, we conducted a statistical analysis of asset returns of 16 companies during the period from 2000 to 2015. We used the Shapiro-Wilk test and determined that time series are not from a normal distribution. We detect structural breaks in time series with the Chow test, and then the correlation coefficients between asset returns were calculated. We found the first four moments of correlation coefficients. Data collection and statistical computing have been done in the programming language R

The Mpumalanga Men's Study (MPMS): results of a baseline biological and behavioral HIV surveillance survey in two MSM communities in South Africa

The Mpumalanga Men's Study (MPMS) is the assessment of the Project Boithato HIV prevention intervention for South African MSM. Boithato aims to increase consistent condom use, regular testing for HIV-negative MSM, and linkage to care for HIV-positive MSM. The MPMS baseline examined HIV prevalence and associated risk behaviors, and testing, care, and treatment behaviors among MSM in Gert Sibande and Ehlanzeni districts in Mpumalanga province, South Africa in order to effectively target intervention activities. We recruited 307 MSM in Gert Sibande and 298 in Ehlanzeni through respondent-driven sampling (RDS) between September 2012-March 2013. RDS-adjusted HIV prevalence estimates are 28.3% (95% CI 21.1%-35.3%) in Gert Sibande, and 13.7% (95% CI 9.1%-19.6%) in Ehlanzeni. Prevalence is significantly higher among MSM over age 25 [57.8% (95% CI 43.1%-72.9%) vs. 17.9% (95% CI 10.6%-23.9%), P <0.001 in Gert Sibande; 34.5% (95%CI 20.5%-56.0%) vs. 9.1% (95% CI 4.6%-13.9%), P <0.001 in Ehlanzeni]. In Gert Sibande, prevalence is higher among self-identified gay and transgender MSM vs. other MSM [39.3% (95%CI, 28.3%-47.9%), P <0.01], inconsistent condom users [38.1% (18.1%-64.2%), P <0.05], those with a current regular male partner [35.0% (27.1%-46.4%), P<0.05], and those with lifetime experience of intimate partner violence with men [40.4%, (95%CI 28.9%-50.9%), P <0.05]. Prevalence of previous HIV testing was 65.8% (95%CI 58.8%-74.0%) in Gert Sibande, and 69.3% (95%CI 61.9%-76.8%) in Ehlanzeni. Regular HIV testing was uncommon [(34.6%, (95%CI 27.9%-41.4%) in Gert Sibande; 31.0% (95%CI 24.9%-37.8%) in Ehlanzeni]. Among HIV-positive participants, few knew their status (28.1% in Gert Sibande and 14.5% in Ehlanzeni), or were appropriately linked to care (18.2% and 11.3%, respectively), or taking antiretroviral therapy (13.6% and 9.6% respectively). MPMS results demonstrate the importance of implementing interventions for MSM to increase consistent condom use, regular HIV testing, and linkage and engagement in care for HIV-infected MSM

Le commerce maritime entre Rome et Sri Lanka d'après les données numismatiques

Bopearachchi Osmand. Le commerce maritime entre Rome et Sri Lanka d'après les données numismatiques. In: Revue des Études Anciennes. Tome 94, 1992, n°1-2. Colloque de la société des professeurs d'histoire ancienne (Nantes-Angers 24-26 mai 1991) pp. 107-121

Studies on the C-reactive proteins

Fig. C-14 in back pocketxi, 171, xxxix leaves : ill. ; 25 cm.Title page, contents and abstract only. The complete thesis in print form is available from the University Library.Thesis (Ph.D.) from the Dept. of Microbiology, University of Adelaide, 197