نتایج جستجو برای: area vectors
تعداد نتایج: 648319 فیلتر نتایج به سال:
in this paper, the dual area vector of a closed dual spherical curve is kinematically generatedand the dual steineer vector of a motion are extensively studied by the methods of differential geometry.jacobi’s theorems, known for real curves, are investigated for closed dual curves. the closed trajectorysurfaces generated by an oriented line are fixed in a moving rigid body in ir3 , in which the...
Background & Aims of the Study: The aim of this study was to determine the ecology of malaria vectors in order to select the vector control masseur in the future. This study was carried out on trend of malaria cases and malaria vectors in Saravan county, Sistan & Baluchestan Province, Iran. Materials & Methods: The adult mosquitoes were collected by standard Pyrethrum space spray colle...
In this paper a new method for determining the search area for motion estimation algorithm based on block matching is suggested. In the proposed method the search area is adaptively found for each block of a frame. This search area is similar to that of the full search (FS) algorithm but smaller for most blocks of a frame. Therefore, the proposed algorithm is analogous to FS in terms of reg...
background : the most part of iran become malaria-free region and fall in prevention of re-introduction stage. these regions however are struggling with imported of malaria cases where malaria vectors exist. therefore, understanding the situation of mosquito vectors is crucial. this study was carried out to find out the present situation of malaria vectors and malaria transmission potential in ...
visceral leishmaniasiam caused by leishmania infantum has become endemic in meshkjn-shahr area, northwest iran, so that in the last 8 years, more than 1600 cases have been diagnosed and treated, the majority of them among children younger than 5 years of age. the present study was carried out to determine the probable vectors in this area. during the active season of sandflies in l991,we collec...
Citrus stubborn disease is caused by the helical mollicute Spiroplasma citri. The pathogen is naturally transmitted by sap feeding leafhopper vectors. In the present study attempts were made to detect S. citri in presumptive vectors. Leafhoppers were collected from various wild and cultivated plants in citrus growing areas in Jirfot. Fifteen leafhopper species were identified and 12 species w...
Citrus stubborn disease is caused by the helical mollicute Spiroplasma citri. The pathogen is naturally transmitted by sap feeding leafhopper vectors. In the present study attempts were made to detect S. citri in presumptive vectors. Leafhoppers were collected from various wild and cultivated plants in citrus growing areas in Jirfot. Fifteen leafhopper species were identified and 12 species w...
Introduction: Cutaneous Leishmaniasis cases have recently increased in Bastak area in Hormozgan province. There is no practical information on the causes and vectors of this disease in the region. This study was designated in order to focus on various aspects of the vectors in Bactak area. Methods: In this descriptive study, sand flies were collected biweekly from human dwellings and rodent b...
background: the widespread use of chemical insecticides, resistance in vectors and environmental problems, all have led to an increased interest in the use of biological agents in malaria control programs. the most important functional elements are the native fish. the aim of this study was to identify the native species of lavivorous fish in rudan county, southern iran, to introduce an effecti...
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