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261.
262.
Courts usually treat control over human bodies and body parts as a property issue and find that people do not have property
rights in themselves. This contradicts the liberal philosophical principle that people should be able to perform any self-regarding
actions that do not cause harm to others. The philosophical inconsistencies under pinning the legal treatment of body parts
arguably stem from a misplaced judicial preoccupation with‘property’. A better approach would be to hold a policy inquiry
into the degree of liberty a society wishes to grant its inhabitants. Only once this substantive issue has been addressed
should property be raised as a possible method of implementing the policy.
This revised version was published online in August 2006 with corrections to the Cover Date. 相似文献
263.
考察了单个和两个源问题条件下大学生学科问题类比迁移的情况。实验1考察表面特性对学科问题迁移成绩的影响,以及个体的时间控制、解题策略。实验2考察两个源问题表面相似关系和思路归纳关系对迁移成绩的影响。结果表明:1)表面相似性对迁移成绩影响显著,同领域学科问题之间更容易迁移;2)依据表面和依据结构来激活源问题都是有效策略.源问题学习时间与迁移效果之间不存在显著关系;3)思路归纳对迁移成绩影响显著。 相似文献
264.
研究探讨网络购物中选择集大小对决策态度和行为的影响,以及目标确定性和产品类型对该关系的调节作用。采用2(大选择集vs.小选择集)×2(目标明确vs.目标不明确)×2(体验型产品vs.搜索型产品)的组间设计,发现大选择集组选择满意度、自信心更高,但延迟选择更多,出现态度-行为分离。目标不明确时,大选择集组延迟选择更多。 相似文献
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266.
国外器官捐献评估方法介绍 总被引:1,自引:1,他引:0
器官移植已成为医学上应用越来越广泛的手段之一。器官移植中器官捐献的分析评估体系作为成熟器官移植系统不可或缺的一部分,能够对器官捐献水平和做出客观的评估,包括捐献潜力,即潜在捐献者率(Potential Donors rate,,PDr)和捐献有效力,即实际捐献者率(Actual Donors rate,ADr)(单位:per million population,pmp)。本文将介绍通过对多国器官捐献评估方法进行分析、总结得出器官捐献中供体评估的主体方法,包括流程、分析方法、适用范围及其积极意义等,希望可以利于我国研究。 相似文献
267.
治疗糖尿病创新药物研究 总被引:1,自引:1,他引:0
本论文从治疗2型糖尿病药物应用现状出发,通过对2型糖尿病病理的认识,新发现的主要受体和相关药靶等方面进行分析。指出随着对糖尿病认识的深入发展,治疗糖尿病创新药物研究的发展趋势也发生了相应的变化,就是从局部治疗到全身综合考虑,从药物外部直接地干预到增强自身调节功能。为治疗2-型糖尿病药物发展指明了方向。 相似文献
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269.
Gayle E. Woloschak 《Zygon》2003,38(3):699-704
Transplantation is becoming an increasingly more common approach to treatment of diseases of organ failure, making organ donation an important means of saving lives. Most world religions find organ donation for the purpose of transplantation to be acceptable, and some even encourage members to donate their organs as a gift of love to others. Recent developments, including artificial organs, transplants from nonhuman species, use of stem cells, and cloning, are impacting the field of transplantation. These new approaches should be discussed with bioethical considerations in mind, particularly the notion of human beings as a unity of body and spirit. 相似文献
270.
Adjunctive or induced behavior is generated during a variety of schedules of reinforcement. Several theoretical conceptualizations suggest that rate of reinforcement is the primary variable controlling the strength or levels of induced behavior. The operant response requirement within the schedule context has not been extensively studied as a determinant of induced responding. In the present study, levels of induced attack by food-deprived pigeons against restrained conspecifics were compared during response-dependent and response-independent schedules of food presentation equated or yoked interval-by-interval for reinforcement frequency. Experiment 1 compared levels of attack induced by fixed-ratio schedules of key pecking and yoked "matched-time" schedules. Experiment 2 similarly compared chained fixed-ratio 1 fixed-ratio 74 and yoked chained matched-time matched-time schedules. In both experiments, the response-dependent schedules generated greater levels (amount and probability) of induced attack than the response-independent time-based schedules. Thus, the ratio response requirement may be an important determinant of levels of induced responding, and the lower levels of attack observed during the response-independent condition may not be due to the absence of stimuli predicting food presentations. It is concluded that rate of reinforcement is not the sole variable determining levels of induced responding and that response-based and time-based schedules differ in their generation of induced responding. 相似文献