منابع مشابه
Echinococcus multilocularis in North America: the great unknown
Over the last decade, studies have begun to shed light on the distribution and genetic characterization of Echinococcus multilocularis, the causative agent of alveolar echinococcosis (AE), in North America. Recent findings indicate that the parasite is likely expanding its range in the central region of the United States and Canada and that invasions of European strains might have occurred. In ...
متن کاملForecasting the spread of invasive rainbow smelt in the Laurentian Great Lakes region of North America.
Rainbow smelt (Osmerus mordax) have invaded many North American lakes, often resulting in the extirpation of native fish populations. Yet, their invasion is incipient and provides the rationale for identifying ecosystems likely to be invaded and where management and prevention efforts should be focused. To predict smelt presence and absence, we constructed a classification-tree model based on h...
متن کاملGenetic Improvement in Winter Wheat Yields in the Great Plains of North America, 1959–2008
Data from USDA-coordinated winter wheat (Triticum aestivum L.) regional performance nurseries collected over the time period 1959 to 2008 were used to estimate genetic gain (loss) in grain yield, grain volume weight, days to heading, and plant height in winter wheats adapted to the Great Plains of North America. In both the Southern Regional (SRPN) and Northern Regional Performance Nurseries (N...
متن کاملDiatom Dissolution in Saline Lake Sediments An Experimental Study in the Great Plains of North America
Environmental reconstructions are limited by the quality of the original data from which they are derived. In situations where microfossils are poorly preserved problems may arise, both through taxonomic uncertainty and more subtly from the alteration of the death assemblage as a result of the differential robustness of species. Diatom dissolution tends to be a particular problem in saline lake...
متن کاملEconomic suicides in the Great Recession in Europe and North America.
There has been a substantial rise in 'economic suicides' in the Great Recessions afflicting Europe and North America. We estimate that the Great Recession is associated with at least 10 000 additional economic suicides between 2008 and 2010. A critical question for policy and psychiatric practice is whether these suicide rises are inevitable. Marked cross-national variations in suicides in the ...
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ژورنال
عنوان ژورنال: Journal of Information Processing and Management
سال: 2006
ISSN: 0021-7298,1347-1597
DOI: 10.1241/johokanri.49.513