نتایج جستجو برای: apis spp
تعداد نتایج: 60935 فیلتر نتایج به سال:
The development of web applications that manipulate geo-referenced information is often supported by Application Programming Interfaces (APIs), allowing a fast development cycle for high quality applications. APIs can be used by programmers with different expertise levels and choosing an adequate API may have a dramatic impact on the productivity achieved by those programmers. Our goal is to co...
Concern over reported honeybee (Apis mellifera spp.) losses has highlighted chemical exposure as a risk. Current laboratory oral toxicity tests in A. mellifera spp. use short-term, maximum 96 hour, exposures which may not necessarily account for chronic and cumulative toxicity. Here, we use extended 240 hour (10 day) exposures to examine seven agrochemicals and trace environmental pollutant tox...
BACKGROUND Hymenoptera venom-allergic patients frequently present multiple sensitisations. OBJECTIVES To define the allergic profile by components in wasp allergic patients. To study the usefulness of specific IgE to components in cases of double sensitisation. MATERIALS AND METHODS Wasp allergic patients who needed Polistes and/or Vespula venom immunotherapy were included. Before immunothe...
conclusions the results of the present study revealed that soil resources of these areas were contaminated with opportunistic amoebas such as acanthamoeba and hartmannella spp. and this may lead to severe diseases in high-risk people, such as immunocompromised patients. background free-living amoebas are very abundant in nature, especially in water and soil. some species of amoebas cause seriou...
مقایسه مرفومتریک برای تفکیک نژادهای زنبورعسل مورد استفاده قرار گرفت. اختصاصات بال جلو جمعیت های زنبور عسل پنج استان خوزستان، اصفهان، مرکزی، فارس و کردستان استفاده شد. از هر استان 3 زنبورستان و از هر زنبورستان 10 کندو و از هر کندو 5 زنبور کارگر به طور تصادفی مورد بررسی قرار گرفت. طول بال جلو، عرض بال جلو، زاویه a4، زاویه d7، زاویه g18، شاخص کوبیتال و طول آنال بال جلو و نسبت طول به عرض بال جلو ...
Abstract The response of bees to changing environmental temperatures has implications for pollination in natural and agricultural systems, with rising average increased stochasticity predicted cause pollinator population declines. A growing body evidence the role native crop suggests that understanding at which are active is important maintaining productivity under climate change. This study us...
Cloud computing is currently the most popular model to offer and access computational resources and services. Many cloud providers use the REST architectural style (Representational State Transfer) for offering such computational resources. However, these cloud providers face challenges when designing and exposing REST APIs that are easy to handle by end-users and/or developers. Yet, they benef...
September 2, 2016 Biodiversity can provide an economic insurance value against the uncertain provision of ecosystem services for risk-averse economic agents. For uncertain pollination services, we determine the risk premium and the economic insurance value of wild pollinators in almond orchards for a risk-averse farmer. For this, we describe pollination services as a distribution, which can be ...
nosemosis is the most common disease in adult bees. nosema apis and nosema ceranae species are agents of important economic losses to beekeepers around the world. the severity of disease at various area is different. previously, n. apis was observed in areas with a long winter, especially in late winter and early spring. but in recent years, disease has been reported in the warm seasons. the st...
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