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Dschang, Cameroon

The University of Dschang is a university located in Dschang, Cameroon. Wikipedia.

Svanstedt N.,Gothenburg University | Woukeng J.L.,University of Dschang
Nonlinear Analysis: Real World Applications

Homogenization of Wilson-Cowan type of nonlocal neural field models is investigated. Motivated by the presence of a convolution term in this type of models, we first prove some general convergence results related to convolution sequences. We then apply these results to the homogenization problem of the Wilson-Cowan-type model in a general deterministic setting. Key ingredients in this study are the notion of algebras with mean value and the related concept of sigma-convergence. © 2012 Elsevier Ltd. All rights reserved. Source

With the decreasing HIV epidemiology in Cameroon (5.5% in 2004 to 4.3% in 2011), HIV/AIDS remains a major public health concern, affecting mostly the sexually active population, among which the young University students represent an important target. Since sexual intercourses represent about 90% of HIV transmission, understanding the sexual behaviors of youth could relevantly optimize the design of HIV prevention strategies, through updated and adapted communication strategies for healthy sexual behavioral changes. A qualitative, descriptive and cross-sectional study was conducted in November 2010, among 518 newly registered students in the various faculties of the University of Dschang, Cameroon. In order to evaluate Knowledge, Attitudes and Practices (KAP) toward HIV/AIDS prevention among the study participants, a structured questionnaire was administered to each participant, on the basic knowledge about HIV/AIDS and condoms. Data analysis was performed using Epi Info version 3.5.0 software. The mean age of participants was 20 years, with a slight female predominance (52%). 98.6% of students voted familiar with the theme "condom", with 88.9% giving a satisfactory definition. However, 41.1% do not know the appropriate transmission route of HIV, while 5.4% do not master the correct use of condom; with up to 75.7% being aware of the female condom existence. Although 97.8% of students consider the proper use of condoms as an effective HIV preventive tool, up to 34.5% of them fail to use condoms during sexual intercourses and 69% were not in favor of the use of female condom, mainly due to a decreasing sexual pleasure. Despite the existing sensitization campaigns, the perception of condoms is still very poor among young Cameroonian academics; with the non-systematic use of condoms being the major setback. The lack of familiarity to female condom, both among female and male, would also be a contributing drawback. These major sexual behavioral risk factors to HIV infection appear as key points to address during the campaigns to ensure owning of healthy sexual habits, a leading component to reduce HIV incidence among young Cameroonian/Africans. Source

Kamdem H.T.T.,University of Dschang
Journal of Thermophysics and Heat Transfer

Ray effects through two- and three-dimensional isotropically scattering, participating media are investigated using four ordinates methods: discrete ordinates, using a classical quadrature scheme and a refined azimuthal discretization around the azimuthal angle endpoints; and finite volume, with and without refined azimuthal discretization around the azimuthal angle endpoints. The discrete ordinates method with refined azimuthal angular discretization consists of a coupling of Gaussian quadrature for polar discretization and control azimuthal angle discretization splitting into a quadruple range. For both the discrete ordinates method with refined azimuthal angular discretization and the finite volume method with refined azimuthal angular discretization, the azimuthal direction is discretized such that azimuthal grid points are close to the azimuthal angle endpoints. Radiative heat transfer through isotropically scattering, participating and optically thin media within enclosures considering uniform and strip diffuse boundary conditions is considered. Excellent agreement between the discrete ordinates method/finite volume method with refined azimuthal angular discretization and the benchmark literature resultsisachieved for high-order azimuthal discretization, whereas finer high-order azimuthal discretization is required for the finite volume method. Ray effects are eliminated for combinations of higher-order azimuthal discretization and refined azimuthal discretization around the azimuthal angle endpoints. It has also been found that, in order to eliminate ray effects, the discrete ordinates and finite volume methods' quadrature sets' order must be increased as the medium's aspect ratio decreases or when the size of the diffuse strip of incident radiation on one of the medium's surfaces is decreased. © 2012 by the American Institute of Aeronautics and Astronautics, Inc. All rights reserved. Source

Simo G.,University of Dschang | Rayaisse J.B.,CIRDES Center International Of Recherche Developpement Sur Lelevage En Zone Sub Humide
Parasites and Vectors

African trypanosomiases are infectious diseases caused by trypanosomes. African animal trypanosomiasis (AAT) remains an important threat for livestock production in some affected areas whereas human African trypanosomiasis (HAT) is targeted for elimination in 2020. In West and Central Africa, it has been shown that the parasites causing these diseases can coexist in the same tsetse fly or the same animal. In such complex settings, the control of these diseases must be put in the general context of trypanosomiasis control or "one health" concept where the coordination of control operations will be beneficial for both diseases. In this context, implementing control activities on AAT will help to sustain HAT control. It will also have a positive impact on animal health and economic development of the regions. The training of inhabitants on how to implement and sustain vector control tools will enable a long-term sustainability of control operations that will lead to the elimination of HAT and AAT. © 2015 Simo and Rayaisse. Source

Kuete V.,University of Dschang
Toxicological Survey of African Medicinal Plants

Toxicological Survey of African Medicinal Plants provides a detailed overview of toxicological studies relating to traditionally used medicinal plants in Africa, with special emphasis on the methodologies and tools used for data collection and interpretation. The book considers the physical parameters of these plants and their effect upon various areas of the body and human health, including chapters dedicated to genotoxicity, hepatotoxicity, nephrotoxicity, cardiotoxicity, neurotoxicity, and specific organs and systems. Following this discussion of the effects of medicinal plants is a critical review of the guidelines and methods in use for toxicological research as well as the state of toxicology studies in Africa. With up-to-date research provided by a team of experts, Toxicological Survey of African Medicinal Plants is an invaluable resource for researchers and students involved in pharmacology, toxicology, phytochemistry, medicine, pharmacognosy, and pharmaceutical biology. • Offers a critical review of the methods used in toxicological survey of medicinal plants • Provides up-to-date toxicological data on African medicinal plants and families • Serves as a resource tool for students and scientists in the various areas of toxicology. © 2014 Elsevier Inc. All rights reserved. Source

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