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21.
中国古代堕胎考略   总被引:1,自引:0,他引:1  
中国见于史书记载的堕胎行为从汉代就开始了,并且形成三种堕胎技术。唐宋以后,由于人口增长的压力,堕胎在一些地区出现了普遍化倾向,导致堕胎的公开化和职业化。但由于传统重生育、反堕胎观念的存在,堕胎技术一直受到歧视,得不到完善,人们为此付出了长期的血的代价。  相似文献   
22.
This paper obtains the weak completeness and decidability results for standard systems of modal logic using models built from formulas themselves. This line of work began with Fine (Notre Dame J. Form. Log. 16:229–237, 1975). There are two ways in which our work advances on that paper: First, the definition of our models is mainly based on the relation Kozen and Parikh used in their proof of the completeness of PDL, see (Theor. Comp. Sci. 113–118, 1981). The point is to develop a general model-construction method based on this definition. We do this and thereby obtain the completeness of most of the standard modal systems, and in addition apply the method to some other systems of interest. None of the results use filtration, but in our final section we explore the connection.  相似文献   
23.
Despite abundant literature theorizing societal implications of algorithmic decision making, relatively little is known about the conditions that lead to the acceptance or rejection of algorithmically generated insights by individual users of decision aids. More specifically, recent findings of algorithm aversion—the reluctance of human forecasters to use superior but imperfect algorithms—raise questions about whether joint human-algorithm decision making is feasible in practice. In this paper, we systematically review the topic of algorithm aversion as it appears in 61 peer-reviewed articles between 1950 and 2018 and follow its conceptual trail across disciplines. We categorize and report on the proposed causes and solutions of algorithm aversion in five themes: expectations and expertise, decision autonomy, incentivization, cognitive compatibility, and divergent rationalities. Although each of the presented themes addresses distinct features of an algorithmic decision aid, human users of the decision aid, and/or the decision making environment, apparent interdependencies are highlighted. We conclude that resolving algorithm aversion requires an updated research program with an emphasis on theory integration. We provide a number of empirical questions that can be immediately carried forth by the behavioral decision making community.  相似文献   
24.
随着疾病谱和死亡谱的改变,生物医学模式逐渐地不能满足医学发展的需要,取而代之的是生物心理社会医学模式。现代医学模式全方位探求影响人类健康与疾病的因果关系,认为生物学、心理学及社会学因素是人类致病共同的重要因素。针灸是中国传统医学同时也是西方辅助与替代医学的重要内容。针灸医护人员应大力宣传针灸知识,应用生物心理社会医学模式去对待每一位患者。本文试述心理疗法如支持性心理治疗、认知行为疗法、放松疗法在针灸临床的应用,展现针灸心身同治的诊疗特点。  相似文献   
25.
SNARC效应是人类空间认知的重要组成部分。限于技术手段,现有SNARC研究的理论和技术多以小尺度空间环境为基础,致使其生态效度较低。基于增强现实技术和认知神经科学范式,通过增强现实技术生成的交互情境,从核心加工系统(静态空间SNARC、动态空间SNARC、静态-动态联合SNARC)和加工特性两个方面,研究建立起基于大尺度空间环境的SNARC加工模型。为人类空间认知研究提供了更加完备的知识领域。  相似文献   
26.
Adams’ (1971) closed-loop theory holds that memory and perceptual trace development is a function of the amount of practice with knowledge of results. If knowledge of results is withdrawn before these two memory states are strong performance will worsen, but after substantial practice performance can be maintained and evaluated in the absence of knowledge of results. To test the first prediction, three independent groups were given varying amounts of KR trials prior to early knowledge of results withdrawal. Subjects attempted to produce a 24.13-cm movement in exactly 150 msec. Memory and perceptual trace performance (as reflected in mean absolute and mean absolute estimated error, respectively) were dependent on the amount of knowledge of results practice, and the memory and perceptual trace remained reasonably strong during late knowledge of results withdrawal.  相似文献   
27.
The present study determined the relationship between perception of the upright in 2-dimensional space and movement accuracy. 161 female Ss were administered the Rod and Frame Test, and 30 Ss, whose scores indicated the greatest and least error in perceptual differentiation, were assigned to 2 experimental groups and measured on accuracy of postural pursuit tracking. The effects of direction of movement and visual field conditions on accuracy of performance were determined by a coordinate postural platform and hybrid computer methods. A direct relationship existed between perception of the vertical in space and accuracy of motor responses and that perceptual integration was affected by the direction of movement and the presence of a stable visual field.  相似文献   
28.
Augmented feedback has motivational and informational functions in motor learning, and is a key feature of practice in a virtual environment (VE). This study evaluated the impact of narrative (story-based) feedback as compared to standard feedback during practice of a novel task in a VE on typically developing children's motor learning, motivation and engagement. Thirty-eight children practiced navigating through a virtual path, receiving narrative or non-narrative feedback following each trial. All participants improved their performance on retention but not transfer, with no significant differences between groups. Self-reported engagement was associated with acquisition, retention and transfer for both groups. A narrative approach to feedback delivery did not offer an additive benefit; additional affective advantages of augmented feedback for motor learning in VEs should be explored.  相似文献   
29.
The Women's Health Questionnaire (WHQ) was designed specifically to study possible changes that occur during menopause. The purpose of this study was to perform a psychometric evaluation of the Norwegian version of the WHQ by examining the factor structure and construct validity of the instrument. Data used for the evaluation were collected at baseline of the ACUFLASH study, a randomized, controlled clinical trial that evaluated the effect of acupuncture treatment on menopausal symptoms. Altogether, 267 women with a very high frequency of hot flushes were included in the study. Some deficiencies in the WHQ questionnaire were observed when applied to this sample, including an unclear factor structure, low alpha values for some dimensions, and a strong floor effect in the vasomotor symptoms dimension. The total scale score appears reliable, but care should be taken when interpreting some of the subscales.  相似文献   
30.
目前针灸临床研究存在的问题及对策   总被引:6,自引:0,他引:6  
针对目前针灸临床研究中存在的系列问题,提出用系统工程的理论和方法加以解决。其对策包括:整体考察与多因素研究;探讨有关因素的主次作用及交互关系;攻克优化组合方案;研究的数学化;加强机能状态与疗效关系的研究;综合研究,系统管理;系统开放,联用它法。同时认为,倡导用包括系统科学在内的自然辨证法的观点和方法指导针灸临床的研究,将促进研究的深化和导致研究质的飞跃。  相似文献   
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