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Recent commentaries by Verheijde et al, Evans and Potts suggesting that donation after cardiac death practices routinely violate the dead donor rule are based on flawed presumptions. Cell biology, cardiopulmonary resuscitation, critical care life support technologies, donation and transplantation continue to inform concepts of life and death. The impact of oxygen deprivation to cells, organs and the brain is discussed in relation to death as a biological transition. In the face of advancing organ support and replacement technologies, the reversibility of cardiac arrest is now purely related to the context in which it occurs, in association to the availability and application of support systems to maintain oxygenated circulation. The 'complete and irreversible' lexicon commonly used in death discussions and legal statutes are ambiguous, indefinable and should be replaced by accurate terms. Criticism of controlled DCD on the basis of violating the dead donor rule, where autoresuscitation has not been described beyond 2 minutes, in which life support is withdrawn and CPR is not provided, is not valid. However, any post mortem intervention that re-establishes brain blood flow should be prohibited. In comparison to traditional practice, organ donation has forced the clarification of the diagnostic criteria for death and improved the rigour of the determinations.  相似文献   
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The authors investigated whether students who selectively volunteer for a study of prison life possess dispositions associated with behaving abusively. Students were recruited for a psychological study of prison life using a virtually identical newspaper ad as used in the Stanford Prison Experiment (SPE; Haney, Banks & Zimbardo, 1973) or for a psychological study, an identical ad minus the words of prison life. Volunteers for the prison study scored significantly higher on measures of the abuse-related dispositions of aggressiveness, authoritarianism, Machiavellianism, narcissism, and social dominance and lower on empathy and altruism, two qualities inversely related to aggressive abuse. Although implications for the SPE remain a matter of conjecture, an interpretation in terms of person-situation interactionism rather than a strict situationist account is indicated by these findings. Implications for interpreting the abusiveness of American military guards at Abu Ghraib Prison also are discussed.  相似文献   
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Past research has found conservative Protestants to be less willing than most Americans to grant civil liberties to unpopular groups. In light of evidence of high and growing civility by Smith (2000) and Hunter (1984), there is good reason to believe that conservative Protestants are becoming less distinctive with regard to granting civil freedoms. We update and expand previous research on conservative Protestants and civil liberties by examining the civil liberties measures in the General Social Survey over a 26-year period, with special attention to explaining conservative Protestantism's rejection of civil liberties. In comparison to mainline Protestants and Catholics, we find that conservative Protestants are still less willing to grant civil liberties to unpopular groups, though important qualifications apply. Various explanations are examined.  相似文献   
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This research explored ways gifted children with learning disabilities perceive and recall auditory and visual input and apply this information to reading, mathematics, and spelling. 24 learning-disabled/gifted children and a matched control group of normally achieving gifted students were tested for oral reading, word recognition and analysis, listening comprehension, and spelling. In mathematics, they were tested for numeration, mental and written computation, word problems, and numerical reasoning. To explore perception and memory skills, students were administered formal tests of visual and auditory memory as well as auditory discrimination of sounds. Their responses to reading and to mathematical computations were further considered for evidence of problems in visual discrimination, visual sequencing, and visual spatial areas. Analyses indicated that these learning-disabled/gifted students were significantly weaker than controls in their decoding skills, in spelling, and in most areas of mathematics. They were also significantly weaker in auditory discrimination and memory, and in visual discrimination, sequencing, and spatial abilities. Conclusions are that these underlying perceptual and memory deficits may be related to students' academic problems.  相似文献   
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This paper describes a method of working with learning-disabled adults and their families when they encounter entrenched difficulties. Two significant themes are identified: the patterning of life-cycle transitions and the recurrence of grief. Therapy consists of joining the family members to evolve and develop hypotheses about what is preventing them moving to the next family life-cycle stage.  相似文献   
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This study was part of an ongoing investigation into four of the potential challenges confronting women and men in cross-sex fiendships (O’Meara, 1989). Unlike previous research, which explored the perspective of only one member of each cross-sex fnendship, this study examined the perspectives of both individuals in cross-sex fienhhips. The levels of actual and perceived agreement and understanding were investigated through utilization of a variation of Heiderian Balance Theory and Laing’s Interpersonal Perception Method. Seventy three pairs of cross-sex fiends completed a survey examining direct perspectives, metaperspectives, and meta-metaperspectives, on the four challenges. Over 92% of the participants were heterosexual, 68% were Caucasian, 10% were Afican American, 10% were Hispanic, 3% were Asian, 4% were Native American, and 5% indicated “other.” Results indicate that cross-sex fiends generally agree that O’Meara’s four challenges present only minimal problems in their individual relationships, and that balance theory provides a viable explanation of how perceived agreement and understanding concerning challenges are arrived at within cross-sex fnendships. Additionally, results illustrating disagreements and misunderstandings within cross-sex friendships highlight the importance of looking at the perspectives of both individuals within a dyad.  相似文献   
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Fear thresholds were measured in four experiments by exposing rats to electric shock in order to determine the maximal intensity rats would tolerate rather than enter a fear-arousing box and/or stop freezing. Increasing fear raised these thresholds. They were greater for rats having to escape shock to a fear-arousing box than for rats having to escape shock and fear to a neutral box. The forgetting functions for the latter two groups differed: the first group yielded a monotonic decay function, whereas the second group yielded an inverted U-shaped function. These thresholds decreased as a function of an avoidance learning procedure. Rats that had to escape shock to a fear arousing box did not do so immediately, although they had stopped freezing. An avoidance-avoidance conflict explanation for immobility was not found to be valid. A theoretical formulation based on the following two hypotheses was suggested to explain these results: the fear-aroused freezing (immobility) is an unlearned response; finding a way to escape the source of fear starts another unlearned response, withdrawal.  相似文献   
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