Rates of evolution

What is the highest possible replication rate for living organisms? The cellular growth rate is controlled by a variety of processes. Therefore, it is unclear which metabolic process or group of processes should be activated to increase growth rate. An organism that is already growing fast may already have optimized through evolution all processes that could be opti-mized readily, but may be confronted with a more generic limitation.

17p vinaphone15 27-02-2013 30 1   Download

The topic of policy formulation among interdependent economies has received much attention in the literature. China and Hong Kong are economically closely linked. Policy initiatives in one economy may influence the evolution of economics variables in the other. In the first essay a two-country model is used to illustrate the interdependence of these two economies. Not surprisingly, we found that the policy effects are asymmetric, due to differences in size. China’s economic policies have a big effect on Hong Kong, but the reverse is not true.

239p mualan_mualan 25-02-2013 72 7   Download

Tuyển tập báo cáo các nghiên cứu khoa học quốc tế ngành y học dành cho các bạn tham khảo đề tài: Evolution of Dengue Virus Type 3 Genotype III in Venezuela: Diversification, Rates and Population Dynamics

9p dauphong2 23-12-2011 57 4   Download

Tuyển tập báo cáo các nghiên cứu khoa học quốc tế ngành y học dành cho các bạn tham khảo đề tài: Speciation burst hypothesis : an explanation for the variation in rates of phenotypic evolution

7p toshiba21 16-11-2011 47 1   Download

Cyclooxygenases (COXs) catalyze the rate-limiting step in the production of prostaglandins, bioactive compounds involved in processes such as fever and sensitivity to pain, and are the target of aspirin-like drugs. COX genes have been cloned from coral, tunicates and vertebrates, and in all the phyla where they are found, there are two genes encoding two COX isoenzymes; it is unclear whether these genes arose from an early single duplication event or from multiple independent duplications in evolution. The...

7p thulanh19 09-11-2011 33 3   Download

Tuyển tập các báo cáo nghiên cứu về y học được đăng trên tạp chí y học General Psychiatry cung cấp cho các bạn kiến thức về ngành y đề tài: Seven-year follow-up of infliximab therapy in rheumatoid arthritis patients with severe long-standing refractory disease: attrition rate and evolution of disease activity...

8p thulanh14 19-10-2011 51 5   Download

Tuyển tập các báo cáo nghiên cứu về sinh học được đăng trên tạp chí sinh học Journal of Biology đề tài: Estimating rates and patterns of morphological evolution from phylogenies: lessons in limb lability from Australian Lerista lizards...

4p toshiba3 07-09-2011 61 6   Download