Most writing on sexual differentiation of the mammalian brain (including our own) considers just two organs: the gonads and the brain. This perspective, which leaves out all other body parts, misleads us in several ways. First, there is accumulating evid
3.BiologyA structure, function, or attribute of an organism, influenced by genetic, environmental, and developmental factors. 4. a.A person considered as having a specific quality or attribute:"Being a man of the world and a public character,[he]took everything as a matter of course"(George...
Sex differences in the lifetime risk and expression of disease are well-known. Preclinical research targeted at improving treatment, increasing health span, and reducing the financial burden of health care, has mostly been conducted on male animals and cells. The extent to which sex differences in...
incubation, and offspring provision. Despite their evolutionary importance, knowledge gaps exist in the extent to which parents contribute disproportionately to these forms and factors that are associated with variations in care patterns between sexes. Here, we analyzed 1533 bird species and discovered ...
The age composition of males and females in the catch was similar, meaning that the mortality rate in males is unlikely to be higher than that of females. The data suggest that biased sex ratios in catches are representative of the natural sex ratio in a population for fish more than 60 ...
In lieu of an , here is a brief excerpt of the content: Human Biology 74.3 (2002) 497-500 Book Review Sex, Gender and Health Sex, Gender and Health, edited by Tessa M. Pollard and Susan Brin Hyatt. Biosocial Society Symposium Series, Vol. 11. Cambridge, UK: Cambridge University Press...
While philosophers seek the meaning of life, cell biologists are becoming ever more interested in the meaning of death. Apoptosis marks unwanted cells with... J Savill,V Fadok - 《Nature》 被引量: 3176发表: 2000年 Role of PIGF in the intra- and intermolecular cross talk between the VEGF...
where the individual person is of significance primarily in terms of his acceptance and capacity to maintain that social order, and an ethical orientation, where concern is with discovering the meaning and significance of human action, both for the actor and the person, or persons, who will be...
Richards (Biology serie... JP Spradbery - University of Washington Press 被引量: 398发表: 1973年 Zigzagging and casting as a programmed response to wind‐borne odour: a review Counterturning' (meaning here the execution of a succession of alternating left and right turns) is the common ...
Here we report a remarkable experiment in which we recreated the lost adult stages in the beetle Micromalthus debilis LeConte, an insect with a bizarre sexual system. Micromalthus is considered native to North America8, and is the only extant species of the ancient family Micromalthidae. The...