منابع مشابه
securitization of mortality risks in life annuities
insurers have in the past few decades faced longevity risks - the risk that annuitants survive more than expected - and therefore need a new approach to manage this new risk. in this dissertation we survey methods that hedge longevity risks. these methods use securitization to manage risk, so using modern financial and insurance pricing models, especially wang transform and actuarial concepts, ...
15 صفحه اولMigration Prediction and Monitoring of Rice Planthoppers in Japan
This paper presents a new method of migration prediction for rice planthoppers. Using this new method, a three-dimensional backward trajectory analysis was conducted to find migration sources of rice planthoppers that immigrated into Japan. The results showed that the coastal regions of Fujian province in China and Taiwan were possible sources of the whitebacked planthopper (WBPH) that immigrat...
متن کاملthe stady and analysis of rice agroclimatology in lenjan
the west of esfahan province, iran, is one of the most important agricultural areas throughout the country due to the climate variability and life-giving water of zayanderood river. rice is one of the major and economic crops in this area. the most important climatic elements in agricultural activities which should be considered include temperature, relative humidity, precipitation and wind. so...
15 صفحه اولInsulin receptors and wing dimorphism in rice planthoppers.
Wing polymorphism contributes significantly to the success of a wide variety of insects. However, its underlying molecular mechanism is less well understood. The migratory planthopper (BPH), Nilaparvata lugens, is one of the most extensively studied insects for wing polymorphism, due to its natural features of short- and long-winged morphs. Using the BPH as an example, we first surveyed the env...
متن کاملMigration of rice planthoppers and their vectored re-emerging and novel rice viruses in East Asia
This review examines recent studies of the migration of three rice planthoppers, Laodelphax striatellus, Sogatella furcifera, and Nilaparvata lugens, in East Asia. Laodelphax striatellus has recently broken out in Jiangsu province, eastern China. The population density in the province started to increase in the early 2000s and peaked in 2004. In 2005, Rice stripe virus (RSV) viruliferous rate o...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: Kyushu Plant Protection Research
سال: 1994
ISSN: 0385-6410,1884-0035
DOI: 10.4241/kyubyochu.40.90