منابع مشابه
Genetic Discontinuities among Populations of <i>Cleistes</i> (Orchidaceae, Vanilloideae) in North America
Genetic patterns were examined in five populations of North American Cleistes with three sources of molecular data: amplified fragment length polymorphisms (AFLP), DNA sequencing, and plastid microsatellites. Populations of C. bifaria were sampled in four areas of the south-eastern US: the coastal plains of Florida and North Carolina and the mountains of North Carolina and West Virginia. A popu...
متن کاملAdmixture in North America
The history of North America has been marked by the encounter of populations from different continents. The discovery of the New World began a period defined by human migrations at a much larger scale than in previous history. This movement of people, voluntary or forced, changed profoundly the human landscape. As populations came into contact, admixture followed in varying degrees depending on...
متن کاملOutside North America
ions and first-class procedures We've seen two ways to express the square-root computation as an instance of a more general method, once as a fixed-point search and once using Newton's method. Since Newton's method was itself expressed as a fixed-point process, we actually saw two ways to compute square roots as fixed points. Each method begins with a function and finds a fixed point of some tr...
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ژورنال
عنوان ژورنال: Mycologia
سال: 1909
ISSN: 0027-5514
DOI: 10.2307/3753274