共查询到20条相似文献,搜索用时 15 毫秒
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Parvinen K 《Acta biotheoretica》2005,53(3):241-264
The great majority of species that lived on this earth have gone extinct. These extinctions are often explained by invoking
changes in the environment, to which the species has been unable to adapt. Evolutionary suicide is an alternative explanation
to such extinctions. It is an evolutionary process in which a viable population adapts in such a way that it can no longer
persist. In this paper different models, where evolutionary suicide occurs are discussed, and the theory behind the phenomenon
is reviewed. 相似文献
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Petry JJ 《Plastic and reconstructive surgery》2002,109(6):2171; author reply 2171
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Takahashi T 《Neuro endocrinology letters》2011,32(4):400-404
Suicidal behavior is a leading cause of injury and death worldwide. Suicide has been associated with psychiatric illnesses such as depression and schizophrenia, as well as economic uncertainty, and social/cultural factors. This study proposes a neuroeconomic framework of suicide. Neuroeconomic parameters (e.g., risk-attitude, probability weighting, time discounting in intertemporal choice, and loss aversion) are predicted to be related to suicidal behavior. Neurobiological and neuroendocrinological substrates such as serotonin, dopamine, cortisol (HPA axis), nitric oxide, serum cholesterol, epinephrine, norepinephrine, gonadal hormones (e.g., estradiol and progesterone), dehydroepiandrosterone (DHEA) in brain regiouns such as the orbitofrontal/dorsolateral prefrontal cortex and limbic regions (e.g., the amygdala) may supposedly be related to the neuroeconomic parameters modulating the risk of suicide. The present framework puts foundations for "molecular neuroeconomics" of decision-making processes underlying suicidal behavior. 相似文献
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In this essay, we present three case studies which suggest that sometimes we are better off supporting a so–called irrational suicide, and that emotional or psychological distress – even if medically controllable – might justify a suicide. We underscore how complicated these decisions are and how murky a physician's moral role can be. We advocate a more individualized route to end–of–life care, eschewing well–meaning, principled, generalizations in favor of a highly contextualized, patient–centered, approach. We conclude that our Western traditions of promoting reasoned behavior and life themselves may at times be counter–productive. 相似文献
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Mitochondria--the suicide organelles 总被引:17,自引:0,他引:17
Ferri KF Kroemer G 《BioEssays : news and reviews in molecular, cellular and developmental biology》2001,23(2):111-115
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BENNETT AE 《California medicine》1954,81(6):396-401
Suicide is the ninth major cause of death in the nation. California, according to the latest comprehensive figures (1949), ranks about 50 per cent above the national average. Yet the importance of suicide as a cause of death is gravely underestimated. At hospitals and other agencies only emergency treatment is given before discharge of persons who attempt suicide, although it is known that many will repeat the attempt. Rarely is psychiatric evaluation carried out or definitive treatment prescribed. Suicidal symptoms are often ignored in other cases. Physicians have a responsibility, as in any disorder, to recognize signs and symptoms of impending suicide and to use all means of prevention. Prevention could be forwarded by the education of physicians and laymen in detecting early signs of depression, in recognizing accident proneness, and in insisting upon legal control of use of barbiturates, a common means of suicide. Lay associations should encourage individuals with suicidal impulses to go to psychiatric clinics for help. Police should learn how to deal with suicidal attempts, and hospitals should include psychiatric examination and advice as to treatment of all such persons. Suicidal attempts should be registered and reported to public health officers in the same way as are other dangerous diseases. More research should be done on case records of these patients, in order to better understand motivations and means of prevention. 相似文献
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ELIAS RB 《California medicine》1959,90(2):128-129
Among 500 cases of suicide analyzed in Stockholm, fewer than a third were associated with depression. Most forms of psychiatric disease were represented. Nevertheless, most persons give some warning before attempting suicide, and these warnings should be the signal for preventive action. Centers with trained personnel could prevent many suicides, if the potential victims were recognized and referred early enough. Laymen too should be educated to recognize potential suicide and help avert it. 相似文献