نتایج جستجو برای: tropical rat mite
تعداد نتایج: 351482 فیلتر نتایج به سال:
House dust mite is a major cause of allergic asthma and rhinitis in Thai population. Skin prick test (SPT) is a useful tool for the diagnosis of the IgE-mediated reactions. The imported commercial mite vaccine for SPT is available but it is relatively expensive. Aim of this study is to compare Siriraj Mite Allergen Vaccine (SMAV) with standardized commercial mite allergen vaccine by skin prick ...
Most molecular-genetic studies of plant defense responses to arthropod herbivores have focused on insects. However, plant-feeding mites are also pests of diverse plants, and mites induce different patterns of damage to plant tissues than do well-studied insects (e.g. lepidopteran larvae or aphids). The two-spotted spider mite (Tetranychus urticae) is among the most significant mite pests in agr...
Feather mites are obligatory ectosymbionts of birds that primarily feed on the oily secretions from the uropygial gland. Feather mite abundance varies within and among host species and has various effects on host condition and fitness, but there is little consensus on factors that drive variation of this symbiotic system. We tested hypotheses regarding how within-species and among-species trait...
Coconut ( Cocos nucifera L.) is an important cash crop for Asia, Africa and tropical America. The coconut mite, Aceria guerreronis Keifer (Acari: Eriophyidae) a major pest, inflicting heavy damage to fruits, thereby reducing yields farmers profitability . Previous research has demonstrated that high contents of sesquiterpenes compounds present in the essential oil Vitex gardneriana Schauer (Lam...
russian knapweed (acroptilon repens l.) is a perennial weed of aceraceae that is becoming a dominant weed in suitable conditions. in order to find an ecological non-chemical approach for controlling russian knapweed and studying the possibility of using flower-eater mite (aceria acroptiloni shevchenko & kacalev) (acari: eriophyidae), a series of studies including field survey and field experime...
بررسی مکانیسم دوپامینی هسته نوکلئوس اکامبنس در اضطراب ناشی از نیکوتین در آمیگدال در موشهای صحرایی نر
هدف مطالعه حاضر بررسی دخالت گیرنده های دوپامینی هسته نوکلئوس اکامبنس در اثرات شبه اضطرابی ناشی از تزریق نیکوتین درون آمیگدال مرکزی می باشد. موش های نر نژاد ویستار مورد استفاده قرار گرفتند. حیوانات در محدوده آمیگدال مرکزی می باشد. موش های نر نژاد ویستار مورد استفاده قرار گرفتند. حیوانات در محدوده ی وزنی 280-220 گرم بوده و تحت سیکل نوری 12:12 نور/تاریکی در دمای 23 درجه سانتی گراد نگهداری شدند و آ...
BACKGROUND There is increasing evidence for the role of basophils in the pathogenesis of atopic diseases such as bronchial asthma, atopic dermatitis and atopic rhinitis. Recently, it has been reported that basophils derived from healthy donors produce the immunoregulatory cytokines interleukin (IL)-4 and IL-13 after cross-linking of cell surface IgE. In addition to well-known inflammatory media...
The prevalence and loads of deformed wing virus (DWV) between honey bee (Apis mellifera L.) colonies from a tropical and a temperate environment were compared. The interaction between these environments and the mite Varroa destructor in relation to DWV prevalence, levels, and overt infections, was also analyzed. V. destructor rates were determined, and samples of mites, adult bees, brood parasi...
اضطراب یک علامت هشدار دهنده است که موجود را برای مقابله با تهدید آماده می سازد. مهمترین بخشی از مغز که در این فرایند درگیر می باشد سیستم لیمبیک بوده که از سه بخش مهم هیپوکامپ آمیگدال و سپتوم تشکیل شده است. از طرفی مقادیر بالای هیستامین در هیپوکامپ یافت شده است و سیستم هیستامینرژیک مرکزی در فرایندهای رفتاری شامل رفتاهاری شبه اضطرابی در انسان و جانوران دخالت دارد. سیسستم سیتوهیپوکامپ نیز تاثیر مه...
The ectoparasitic mite, Varroa destructor, has become the largest threat to apiculture and honey bee health world-wide. Since it was introduced to the new host species, the European honey bee (Apis mellifera), it has been responsible for the near complete eradication of wild and feral honey bee populations in Europe and North America. Currently, the apicultural industry depends heavily on chemi...
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