نتایج جستجو برای: johne’s disease control
تعداد نتایج: 2627517 فیلتر نتایج به سال:
in this thesis, we consider a mathematical model of cancer with completely unknown parameters. we study the stability of critical points which are biologically admissible. then we consider a control on the system and introduce situations at which solutions are attracted to critical points and so the cancer disease has auto healing. the lyapunov stability method is used for estimating the un...
Many of the chronic infectious disease problems in the goat herd are lifelong infections from exposure of kids near the time of birth. Infectious disease control programs start with planning kid-rearing strategies to minimize infection of the neonate. Pasteurized rearing strategies are commonly used to prevent mycoplasmosis and caprine arthritis-encephalitis virus (CAEV), however pasteurized re...
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This paper provides a survey of work on the link between education and economic growth. It shows that data from the early 20th century are coherent with conclusions about education and economic growth derived from the much more recent past. It also presents an analysis of the role of education in facilitating the use of best-practice technology. It is to be published in the International Handbo...
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As student numbers in the UK’s higher education sector have expanded substantially during the last 15 years, it has become increasingly important for government to understand the structure of costs in higher education, thus allowing it to evaluate the potential for expansion and associated cost implications. This study applies Data Envelopment Analysis (DEA) to higher education institutions (HE...
context arthropod-borne diseases are remaining as a major public health issue in the resource-constrained settings. mosquitoes are closely associated with mankind since time immemorial and play an important role in the transmission of many dreadful diseases like malaria, filariasis, japanese encephalitis, dengue and yellow fever. over the decades, vector control is an important element to minim...
this study was carried out to control johne’s disease (jd) without interfering with tuberculosis (tb)control programme. a dairy herd (n>1500 heads) was used over a period of 6 years, from 1994 to 1999 forthis investigation. the herd had a history of heavy infection with mycobacterium avium paratuberculosis(map) with culling rates of 1.5 and 5%, in 1991 and 1995, respectively. the mean annual lo...
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