نتایج جستجو برای: latrodectus
تعداد نتایج: 537 فیلتر نتایج به سال:
عنکبوتهای جنس latrodectus (theridiidae: araneae) یا عنکبوتهای بیوه (widow spiders) در منطقه مشهد و حومه مورد بررسی قرار گرفت . این عنکبوتها در خراسان به دلمک یا دلمک مشهورند. در این مطالعه ابتدا خصوصیات اکولوژیکی و رفتاری در زیستگاه طبیعی و شرایط آزمایشگاه بررسی شد و سپس براساس مطالعات مورفولوژیک و مورفومتریک دو گونه l.13-guttatus و l.geometricus شناسایی شد.
The brown widow spider, Latrodectus geometricus C. L. Koch, has become newly established in southern California during the first decade of the 21st century. Brown widows and egg sacs were collected within the urban Los Angeles Basin using timed searches. We also collected and compared the abundance and distribution of the native western black widow spider, Latrodectus hesperus Chamberlin & Ivie...
Background: In order to describe the patients and evaluate the effectiveness of treatments for widow spider envenomation, investigators require a reliable assessment tool. In this paper, the development of a clinical index for measuring the widow spider bite severity, Latrodectus Envenomation Severity Score (LESS), is described. Methods: According to the valid methods for index development, a D...
French Polynesia exports more than 90 per cent of its pearl production, making it the world’s largest exporter of Tahitian black pearls. Tahitian black pearl exports are therefore crucial for the Tahitian economy as they accounted for an average of 50 per cent of total export earnings, for the latest data available, for the years 2004, 2005, and 2006. This means that export performance not only...
The spherical symmetric dyonic black hole solutions of the effective action of heterotic string are studied perturbatively up to second order in the inverse string tension. An expression for the temperature in terms of the mass and the electric and magnetic charge of the black hole is derived and it is shown that its behaviour is qualitatively different in the two special cases where the electr...
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