An approach to integrating “professional responsibility” in engineering into the capstone design experience

ABET 2000 Criteria encourages development of proficiency in professional responsibility in engineering as part of the undergraduate curriculum. This paper discusses the use of industrially sponsored capstone design projects to encourage active discussion of professional responsibility in engineering that naturally occurs during the engineering design process. The paper also discusses student participation in designing responses and approaches to issues such as engineering ethics. The paper includes specific examples of topics addressed by students and the approaches developed (by students) in addressing these issues. An earlier version of this paper was presented at the International Conference on Ethics in Engineering and Computer Science, Case Western Reserve University, Cleveland, March 21–24, 1999.     

Points of view analysis revisited: Fitting multidimensional structures to optimal distance components with cluster restrictions on the variables

Points of view analysis (PVA), proposed by Tucker and Messick in 1963, was one of the first methods to deal explicitly with individual differences in multidimensional scaling, but at some point was apparently superceded by the weighted Euclidean model, well-known as the Carroll and Chang INDSCAL model. This paper argues that the idea behind points of view analysis deserves new attention, especially as a technique to analyze group differences. A procedure is proposed that can be viewed as a streamlined, integrated version of the Tucker and Messick Process, which consisted of a number of separate steps. At the same time, our procedure can be regarded as a particularly constrained weighted Euclidean model. While fitting the model, two types of nonlinear data transformations are feasible, either for given dissimilarities, or for variables from which the dissimilarities are derived. Various applications are discussed, where the two types of transformation can be mixed in the same analysis; a quadratic assignment framework is used to evaluate the results.The research of the first author was supported by the Royal Netherlands Academy of Arts and Sciences (KNAW); the research of the second author by the Netherlands Organization for Scientific Research (NWO Grant 560-267-029). An earlier version of this paper was presented at the European Meeting of the Psychometric Society, Leuven, 1989. We wish to thank Willem J. Heiser for his stimulating comments to earlier versions of this paper, and we are grateful to the Editor and anonymous referees for their helpful suggestions.     

言语的情绪韵律和情绪语义对听觉去信息掩蔽的作用

言语的情绪信息(情绪性韵律和情绪性语义)具有去听觉掩蔽的作用, 但其去掩蔽的具体机制还不清楚。本研究通过2个实验, 采用主观空间分离范式, 通过操纵掩蔽声类型的方式, 分别探究言语的情绪韵律和情绪语义去信息掩蔽的机制。结果发现, 情绪韵律在知觉信息掩蔽或者在知觉、认知双重信息掩蔽下, 均具有去掩蔽的作用。情绪语义在知觉信息掩蔽下不具有去掩蔽的作用, 但在知觉、认知双重信息掩蔽下具有去掩蔽的作用。这些结果表明, 言语的情绪韵律和情绪语义有着不同的去掩蔽机制。情绪韵律能够优先吸引听者更多的注意, 可以克服掩蔽声音在知觉上造成的干扰, 但对掩蔽声音在内容上的干扰作用很小。言语的情绪语义能够优先获取听者更多的认知加工资源, 具有去认知信息掩蔽的作用, 但不具有去知觉信息掩蔽的作用。     

团队人口统计特征多元化与绩效关系的元分析

Harrison和Klein (2007)将团队人口统计特征多元化划分为分离、多样和不平等三种类型。借鉴这一分类, 运用元分析的方法检验了不同类型的团队人口统计特征多元化对团队绩效的影响, 以解释以往多元化研究结论不一致的原因。基于中外137篇论文(345个效应值, 79639个团队)的元分析结果显示, 多样型多元化对团队绩效有正向影响, 而分离型多元化和不平等型多元化对团队绩效的主效应并不显著。调节效应检验显示, 团队人口统计特征多元化与不同类型绩效的关系存在显著差异, 且团队人口统计特征多元化与绩效的关系在不同国家地域和不同类型团队中也存在显著差异。研究结果有助于跨国企业和中国本土企业通过合理的多元化管理来提升团队和企业绩效。     

时间期待的认知与神经机制

时间期待是指个体利用环境中的时间信息预测目标刺激何时出现的能力。相关的认知模型可以分为两类：一类侧重于解释时间期待的形成过程, 如痕迹条件反射模型、双加工模型、动态注意模型、时间定向理论等; 另一类侧重于解释时间期待的更新过程, 如策略模型和时间再定位模型等。不同类型的时间期待激活的脑区不同, 表明时间期待的产生和更新过程存在分离：期待的产生激活与运动有关的左侧脑区, 而期待的更新激活与控制有关的右侧脑区。     

A Latent Growth Curve Modeling Approach to Pooled Interrupted Time Series Analyses

This paper presents a latent variable approach for the estimation of treatment effects within a pooled interrupted time series (ITS) design. Although considered quasi-experimental, the ITS design has been noted as representing one of the strongest alternatives to the randomized experiment, making it highly appropriate for use in documenting the presence of effects that might warrant further evaluation in a large-scale randomized study. Results suggest that the latent variable growth modeling (LGM) is capable of detecting simultaneous differences in both level and slope, and provides tests of significance for these two necessary indicators of an ITS intervention effect. As shown in the analyses, the LGM framework provides a comprehensive and flexible approach to research design and data analysis, making available to a wide audience of researchers an analytical framework for a variety of analyses of growth and developmental processes.     

Is `Property' Necessary? On Owning the Human Body and its Parts

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.     

Permeability and Demarcation in the Psychoanalytic Process Functions of the Contact‐Barrier1

Introjection, identifi cation and projection are concepts that designate processes in which something is being put into or taken out of something else. These processes presuppose the overcoming of some form of separation between two entities. The permeability or impermeability of a fi ctive boundary between the representations of subject and object set the emotional tone of their coexistence. There are moments of complete diffusion, in which subject and object can no longer be differentiated, and moments of autistic enclosure in which the individual can no longer be reached at all. Permeability and demarcation result from the processing of stimuli carried out by the ‘contact‐barrier’, as an ego function. Stimuli of internal, libidinal or aggressive origin, as well as ‘im‐pressions’ of external origin, are classifi ed and processed with the aid of various kinds of factors arising from coagulated object‐relational experiences. Whereas for Freud the contact‐barrier regulates the quantity of energy and founds a topographical structure, Bion understands the contact‐barrier as a psychic function that simultaneously regulates boundary demarcation and making contact. In the psychoanalytic process, the contact‐barrier created by patient and analyst regulates the events in the transference and countertransference. An awareness of the struggle for contact and demarcation at the dynamic boundary representations that are constantly being recreated by both partners in the analytic process may be helpful in our clinical work. The author presents an examination of the ways in which patient and analyst make contact and demarcate the boundaries, which provides a better understanding of the dynamics of transference processes. He demonstrates this in relation to clinical material.     

Cardinality without Enumeration

We show that the notion of cardinality of a set is independent from that of wellordering, and that reasonable total notions of cardinality exist in every model of ZF where the axiom of choice fails. Such notions are either definable in a simple and natural way, or non-definable, produced by forcing. Analogous cardinality notions exist in nonstandard models of arithmetic admitting nontrivial automorphisms. Certain motivating phenomena from quantum mechanics are also discussed in the Appendix.     

正义王国的理想--柏拉图政治哲学评析

柏拉图以思辨哲学为主的思想体系中包含着丰富的实践哲学,以正义为核心的政治哲学便是其集中表现。柏拉图所设计的理想的城邦国家是以“贤人政制”作为标准模式的。这种政制以理念论为指导思想,以正义为根本原则,以智慧、勇敢、节制为伦理基础,以善为最高目的;实施这种政制的社会是以奴隶制为基础的严格的等级制、等级分工的社会,通过特制的教育制度培养一批身心健全、德才兼备、有知识有政治智慧的贤能的统治者、“哲学王”,由他们来执掌政权,在统治者集团内部实行财产公有,妇女和子女共有,男女平等,防止统治者腐败变质,以确保这种政制世代相传。