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PubMed2005

Heritable variation in seed sex ratio of the stinging nettle (Urtica dioica).

Male and female flowering plants of the dioecious Urtica dioica occur in approximately equal numbers in our study area on the coastal sand dunes of Meijendel. The seed sex ratio (SSR, fraction of males) collected from female plants in the field varied between 0.05 and 0.76, and differed significantly between maternal parents. After one generation of selection for either high or low SSR, female plants produced seed batches with sex ratios as extreme as 0.08 and 0.73. Natural populations of U. dioica harbour considerable genetic variation in SSR.

Reproduction↗
PubMed1979

Death education--where is thy sting?

We are not free to choose whether anyone will learn about death, though we have some choice about how they will learn. The author discusses the basic questions that need to be answered in planning death education at any level, and the possible goals, in terms of cognitive gain, skills, and attitudinal objectives. Some principles in regard to teaching methods and evaluation are described, with illustrations from the experiences of medical students and others. It is important that the teacher should be able to deal with the problems that such programs may arouse. Cheap emotional arousal is easy to produce, but trivial, unless creatively used for a valued purpose and adequately resolved. Death is infinitely exploitable, and the growth of death voyeurism via "education" is alarming. The capacity to recognize and avoid being exploited or exploiting others must be one of our principle educational objectives.

Attitude to Death↗
PubMed1981

The sting of death in American society.

A collective interest in death and dying has progressively developed in American society since the 1960s. Among the factors associated with it are demographic shifts; medical, scientific, and technological advances; changes in the statuses, roles, and outlook of medical professionals, patients, and women; and the affirmation and broadening of individual rights. Life-and-death issues have moved increasingly from private to public spheres of the society and are appearing more frequently in the courts, the media, and the arts. They are also principal foci of several social movements. This pervasive preoccupation with death seems related to deep cultural changes occurring in our society and in its world view.

Attitude to Death↗