منابع مشابه
Why do human diversity levels vary at a megabase scale?
Levels of diversity vary across the human genome. This variation is caused by two forces: differences in mutation rates and the differential impact of natural selection. Pertinent to the question of the relative importance of these two forces is the observation that both diversity within species and interspecies divergence increase with recombination rates. This suggests that mutation and recom...
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Data including information on patient age, gender, who initiated the visit and call classification was collected during office hours from 12 G.P. rural teaching practices with a combined GMS patient population of 24,720, over a 2 month period. There were a total of 603 home visits, giving an annual visiting rate of 143/1000. Visiting rates varied between practices from 45 to 305/1000 per year. ...
متن کاملWhy Do the Results of Studies on the Effectiveness of Pralidoxime for Treatment of Organophosphate Poisoning Vary?
Organophosphate (OP) compounds are frequently used agorchemicals for deliberate self-harm in some parts of the world resulting in high mortality and morbidity. Pralidoxime (2PAM) is the most widely used and trialed oxime for treatment of OP poisoning. There have been variations over the results of trials using 2PAM for OP poisoning. 2PAM therapy has led to favorable outcomes in some studies, wh...
متن کاملWhy do species vary in their rate of molecular evolution?
Despite hopes that the processes of molecular evolution would be simple, clock-like and essentially universal, variation in the rate of molecular evolution is manifest at all levels of biological organization. Furthermore, it has become clear that rate variation has a systematic component: rate of molecular evolution can vary consistently with species body size, population dynamics, lifestyle a...
متن کاملWhy Do State Disability Application Rates Vary over Time?
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ژورنال
عنوان ژورنال: Environmental Science & Technology
سال: 2003
ISSN: 0013-936X,1520-5851
DOI: 10.1021/es032441z