نتایج جستجو برای: mathematical model of hiv infection

تعداد نتایج: 21459276  

Journal: :IFAC-PapersOnLine 2015

2012
Jeffrey W. Eaton Leigh F. Johnson Joshua A. Salomon Till Bärnighausen Eran Bendavid Anna Bershteyn David E. Bloom Valentina Cambiano Christophe Fraser Jan A. C. Hontelez Salal Humair Daniel J. Klein Elisa F. Long Andrew N. Phillips Carel Pretorius John Stover Edward A. Wenger Brian G. Williams Timothy B. Hallett

BACKGROUND Many mathematical models have investigated the impact of expanding access to antiretroviral therapy (ART) on new HIV infections. Comparing results and conclusions across models is challenging because models have addressed slightly different questions and have reported different outcome metrics. This study compares the predictions of several mathematical models simulating the same ART...

Journal: Addiction and Health 2017

Background: Acquired immune deficiency syndrome (AIDS) is one of the greatest social health problems in many communities in the twenty-first century. Methadone maintenance treatment (MMT) could decrease HIV infection among injection drug users (IDU). The main aim of this paper was to determine the cost-effectiveness of the governmental MMT program to prevent human immunodeficiency virus (HIV) i...

2011
George Shirreff Lorenzo Pellis Oliver Laeyendecker Christophe Fraser

Recent data shows that HIV-1 is characterised by variation in viral virulence factors that is heritable between infections, which suggests that viral virulence can be naturally selected at the population level. A trade-off between transmissibility and duration of infection appears to favour viruses of intermediate virulence. We developed a mathematical model to simulate the dynamics of putative...

Sandip Omar

In this paper, a five–dimensional mathematical model is proposed for the transmission dynamics of HIV/AIDS within a population of varying size. In writing the model, we have divided the population under consideration into five sub classes of susceptible, infective, pre-AIDS, AIDS related complex and that of AIDS patients. The model has two non- negative equilibria namely, a disease free and the...

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه ارومیه 1377

the methods which are used to analyze microstrip antennas, are divited into three categories: empirical methods, semi-empirical methods and full-wave analysis. empirical and semi-empirical methods are generally based on some fundamental simplifying assumptions about quality of surface current distribution and substrate thickness. thses simplificatioms cause low accuracy in field evaluation. ful...

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه پیام نور - دانشگاه پیام نور استان تهران - دانشکده زبانهای خارجی 1392

to teach english adequately, qualified teachers are needed. unfortunately, there are still teachers who are teaching english without an academic degree in tefl. it is necessary for teachers to have a major in english to have subject knowledge, but it is not sufficient. teachers need to have an understanding of the social, cultural, moral, ethical, and pedagogical issues of education and practic...

Journal: :acta medica iranica 0
farhad mehrkhani iranian research center for hiv/aids, tehran university of medical sciences, tehran, ir iran. sara jam iranian research center for hiv/aids, tehran university of medical sciences, tehran, ir iran. duman sabzvari iranian research center for hiv/aids, tehran university of medical sciences, tehran, iran. fatemeh fattahi iranian research center for hiv/aids, tehran university of medical sciences, tehran, iran. and department of immunology, asthma and allergy research institute, tehran university of medical sciences, tehran, iran. zahra kourorian iranian research center for hiv/aids, tehran university of medical sciences, tehran, iran. seyedahmad seyedalinaghi iranian research center for hiv/aids, tehran university of medical sciences, tehran, iran.

serum samples from 201 hiv positive patients were collected to determine the seroprevalence of cmv infection in iranian hiv infected patients during march 2004 until march 2005 using conventional elisa kits. an antibody level of >1.1 iu/ml was considered positive. the seroprevalence of cmv infection was 94%.the maximum prevalence of cmv antibody was seen in patients with unsafe sex and idus. pr...

Journal: :archives of clinical infectious diseases 0
masoud mardani infectious diseases and tropical medicine research center, shahid beheshti university of medical sciences, tehran, ir iran; corresponding author: masoud mardani, infectious diseases and tropical medicine research center, shahid beheshti university of medical sciences, tehran, ir iran. tel: +98-2122439963-8, fax: +98-2122439964

Background and Aim: Pulmonary tuberculosis (TB) infection is common in patients infected with the Human immunodeficiency virus (HIV). In this study, we evaluated thoracic CT scan findings of HIV/TB co-infection, before and after anti-TB treatment. Materials and Methods: In this retrospective cross-sectional study, pre-and post-treatment thoracic CT scans of patients diagnosed with HIV and defin...

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