The join type.For descriptions of the different types, see EXPLAIN Join Types. --对表所使用的访问方式。 2.1.5 possible_keys Thepossible_keys column indicates which indexes MySQL can choose from use to findthe rows in
However, while nonlinearity may explain the evolutionary persistence of cooperation, cooperating is only adaptive if a large enough proportion of the population are already cooperators, which raises the question of how cooperation arose in the first place6,16,17. Rare cooperative ‘mutants’ can only...
nasal mucosa. We next compared the proportions of cell types across the lifespan and found a striking negative relationship (Fisher test for interaction between age and coarse cell type proportion p-value < 0.0001) between age and immune cell residence in the NM samples (Fig. 1B,C...
In contrast, the Chinese have relatively high vertebral fracture rates similar to that of Caucasians. The paradoxically low risk for some types of fractures among the Chinese despite their low areal bone mineral density has been elucidated in part by recent advances in skeletal imaging. New ...
What are the different parts of a bone? Vertebrae is a term given to which bones in the human body? What is the largest organ in the human body? Explain in detail. How many muscles of the posterior compartment attach directly to the bones of the digits? How many basic types of ...
Evolutionary developmental biology is a study related to the developmental process of the organism. It helps to know about the changes in the structure of an organism from the ancestor to the current organism present on the earth's surface....
in Asian individuals including the Chinese, but this does not reflect their relatively low risk of non-vertebral fractures. In contrast, the Chinese have relatively high vertebral fracture rates similar to that of Caucasians. The paradoxically low risk for some types of fractures among the Chinese ...
Social capital has been evaluated as a second-order construct across various studies [24], [26], which may limit the examination in detail of the effects of each social capital dimension on e-participation use behaviour. As e-participation is an information technology that relies on adoption by...
Type 1 diabetes, also known as juvenile diabetes, is a chronic condition that destroys cells in the pancreas, leaving the body unable to produce sufficient insulin. Learn the definition of type 1 diabetes, and explore this disease's risk factors, signs, symptoms,...
4315 growth and development of business outside its core. Exponential increases in COVID-19 deaths worldwide day by day (Osseni 2020) triggered both governments to continue insti- tuting more stringent containment measures. As a result, worldwide international arrivals dropped sharply because ...