DNA replication: One strand may be more equal
نویسندگان
چکیده
منابع مشابه
DNA replication: one strand may be more equal.
Living organisms are highly organized adaptive systems. Whereas the maintenance of organization requires conservation, adaptation requires variation. Evolution, the fundamental strategy of Life, is an interplay of genetic variation and phenotypic selection. The wide variety of spontaneous mutation rates among natural isolates of bacteria show that the capacity for producing genetic variation is...
متن کاملIrreducibility to the One-More Evaluation Problems: More May Be Less
For a random-self-reducible function, the evaluation problem is irreducible to the one-moreevaluation problem, in the following sense. An irreduction algorithm exists that, given a re-duction algorithm from the evaluation to the one-more evaluation problem, solves a separatorproblem: the evaluation problem itself. Another irreduction shows that if the computationalDiffie-Hellman...
متن کاملCase Report of a Vanished Aspirated Foreign Body; Cough may be more Helpful
Foreign body aspiration is a potentially life-threatening event especially in those who are younger than 5 years old. Aspiration could be presented as a spectrum, ranging from absolutely asymptomatic event to more sever events including choking, respiratory distress and cyanosis or even death. Although foreign bodies in lung may not be visualized on X-ray, X-ray radiography is considered as a f...
متن کاملMetronomic Chemotherapy: When Less May Be More
The use of low dose continuous schedules of chemotherapy (i.e. metronomic chemotherapy), delivered at lower doses by necessity compared to traditional dosing schemes, has become an increasingly popular addition to patient management in veterinary medical oncology. While the concept itself is not new, as low dose, maintenance chemotherapy protocols have been important components of treatment for...
متن کاملThinking may be more than computing.
The uncomputable parts of thinking (if there are any) can be studied in much the same spirit that Turing (1950) suggested for the study of its computable parts. We can develop precise accounts of cognitive processes that, although they involve more than computing, can still be modelled on the machines we call ‘computers’. In this paper, I want to suggest some ways that this might be done, using...
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: Proceedings of the National Academy of Sciences
سال: 1998
ISSN: 0027-8424,1091-6490
DOI: 10.1073/pnas.95.17.9718