منابع مشابه
Chain reactions
yet to find an argument that has convinced the public that GM is a green revolution we can ill afford to miss out on. Until ministers do so, GM crops will remain a much talked about idea, but never an eaten foodstuff.” “Proven: environmental dangers that may halt GM revolution” headed The Independent’s coverage. “British scientists delivered a massive blow to the case for genetically modified c...
متن کاملBody reactions during chain saw work.
Body reactions during chain saw work were studied in 14 subjects. The subjects divided into three groups (control, sulpiride, and propranolol) successively cut down logs with a chain saw for seven minutes. The start of the sawing led to a pronounced increase in heart rate which persisted during the sawing. The groups taking sulpiride and propranolol showed a smaller increase in heart rate compa...
متن کاملInterplay of reversible chain transfer and comonomer incorporation reactions in coordination copolymerization of ethylene/1–hexene
Coordinative chain transfer polymerization (CCTP) has opened a new path for the development of novel products like olefin block copolymers and chain-end functional polyolefins. However, conflicting results are frequently reported on the catalyst performance including activity and comonomer selectivity under CCTP conditions. Here we have selected two catalysts including rac-ethylenebis(1-η5-inde...
متن کاملAutocatalysis Before Enzymes: The Emergence of Prebiotic Chain Reactions
How could complex, enzymeor ribozyme-like molecules first have arisen on planet Earth? Several authors have suggested autocatalytic cycles as a partial answer to this question, since such reactions exhibit the life-like property of exponential growth while being composed of relatively simple molecules. However, a question remains as to the likelihood of an autocatalytic cycle forming spontaneou...
متن کاملGenetical and statistical aspects of polymerase chain reactions
In this paper we describe the principles of polymerase chain reaction (PCR) and its expanding use in molecular genetic research and molecular medicine. A short introduction of exemplary applications of the PCR is connected with a discussion of the lack of PCR accuracy. We give a statistical model for the PCR and discuss estimation methods in order to quantify the lack of PCR accuracy.
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ژورنال
عنوان ژورنال: Current Biology
سال: 2003
ISSN: 0960-9822
DOI: 10.1016/j.cub.2003.10.038