对疾病危险因素控制和癌症筛检的考量

目前各项疾病危险因素的“危险性”不够高, 所以通过药物控制单个危险因素来预防疾病的效益很低。癌症筛检虽然使检出的癌症病人增加, 但并不能降低死亡率。因此建议, 在控制慢性病危险因素时, 应首选安全、低成本的有效干预方式方法;采用药物控制手段时, 应优先在综合危险程度较高的人群使用;要努力寻找特异性更高的危险因素指标, 以缩小危险人群;要进一步加强临床研究, 根据国情确定我国自己的诊断与治疗标准。癌症筛检的目标是要检出真正可从治疗中受益的病人, 特别是鉴别出无需治疗的“停滞型”癌症。无论是对疾病危险因素的控制, 还是对癌症筛检, 在改进技术的同时, 更重要的是要从根本上树立正确的健康和医疗观念。     

Spatial versus tree representations of proximity data

In this paper we investigated two of the most common representations of proximities, two-dimensional euclidean planes and additive trees. Our purpose was to develop guidelines for comparing these representations, and to discover properties that could help diagnose which representation is more appropriate for a given set of data. In a simulation study, artificial data generated either by a plane or by a tree were scaled using procedures for fitting either a plane (KYST) or a tree (ADDTREE). As expected, the appropriate model fit the data better than the inappropriate model for all noise levels. Furthermore, the two models were roughly comparable: for all noise levels, KYST accounted for plane data about as well as ADDTREE accounted for tree data. Two properties of the data proved useful in distinguishing between the models: the skewness of the distribution of distances, and the proportion of elongated triangles, which measures departures from the ultrametric inequality, Applications of KYST and ADDTREE to some twenty sets of real data, collected by other investigators, showed that most of these data could be classified clearly as favoring either a tree or a two-dimensional representation.A portable PASCAL program implementing the Sattath and Tversky [1977] ADDTREE algorithm is available from J. Corter, Department of Psychology, Stanford University, Stanford, California 94305.     

Mapclus: A mathematical programming approach to fitting the adclus model

We present a new algorithm, MAPCLUS (MAthematicalProgrammingCLUStering), for fitting the Shepard-Arabie ADCLUS (forADditiveCLUStering) model. MAPCLUS utilizes an alternating least squares method combined with a mathematical programming optimization procedure based on a penalty function approach, to impose discrete (0,1) constraints on parameters defining cluster membership. This procedure is supplemented by several other numerical techniques (notably a heuristically based combinatorial optimization procedure) to provide an efficient general-purpose computer implemented algorithm for obtaining ADCLUS representations. MAPCLUS is illustrated with an application to one of the examples given by Shepard and Arabie using the older ADCLUS procedure. The MAPCLUS solution uses half as many clusters to achieve nearly the same level of goodness-of-fit. Finally, we consider an extension of the present approach to fitting a three-way generalization of the ADCLUS model, called INDCLUS (INdividualDifferencesCLUStering).We are indebted to Scott A. Boorman, W. K. Estes, J. A. Hartigan, Lawrence J. Hubert, Carol L. Krumhansl, Joseph B. Kruskal, Sandra Pruzansky, Roger N. Shepard, Edward J. Shoben, Sigfrid D. Soli, and Amos Tversky for helpful discussions of this work, as well as the anonymous referees for their suggestions and corrections on an earlier version of this paper. We are also grateful to Pamela Baker and Dan C. Knutson for technical assistance. The research reported here was supported in part by LEAA Grant 78-NI-AX-0142 and NSF Grants SOC76-24512 and SOC76-24394.     

论霍克海默的审美教育观及其当代价值

文章阐明了霍克海默的审美教育观及其当代价值,提出他的审美教育观是以主客体相互中介的"社会批判理论"为基础,以强调培育反思能力与自由个性的人为目标;他的这一审美教育观念不仅影响了现代德国美育教育学理论,也影响了美育教学和艺术创作,对于我国当代美育理论与教学实验及发展文化产业,都具有积极的借鉴及启示意义。     

论"心理模块性"研究的理论心理学意义

对西方近20年的“心理模块性”研究作了整体上的理论考察,着重分析了这一研究对于改变心理学的传统观念以及发展理论心理学的实际意义。考察表明,心理模块性研究有可能或正在形成一种崭新的心理学观或范式。     

Hume on the Standard of Virtue

Among those sympathetic to Hume'smoral philosophy, a general consensus hasemerged that his first work on the topic,A Treatise of Human Nature, is his best. Hislater work, An Enquiry Concerning thePrinciples of Morals, is regarded as scaleddown in both scope and ambition. In contrastto this standard view, I argue that Hume'slater work offers a more sophisticated theoryof moral evaluation. I begin by reviewing theTreatise theory of moral evaluation tohighlight the reasons why commentators find socompelling Hume's account of the corrections wemake to our moral sentiments. The method isendorsed by philosophers such as Henry DavidAiken and Annette C. Baier because, theyallege, it shows that moral sentiments reflecta process of judgment that includes thepossibility of corrigibility and ofjustification. But Hume's method of correctionfalls short and does not establish why thesentiments conforming to the standard of virtueshould count as moral judgments. In the secondEnquiry, Hume lays out a different set ofcriteria, including not only the need forcertain virtues of good judgment but attentionto the particular cultural and historicalorigins of the norms governing the virtues ofgood judgment. Hume's attention to diversityin evaluative outlook in his more matureposition takes seriously the relation betweenmoral authority and public debate.     

圣贤之后的人生追寻:冯友兰《新世训》的伦理学意义

Feng Youlan’s Xin Shixun 新世训 (New Treatise on the Way of Life) written in the late 1930s differed from traditional moral teachings because it focused on nonmoral life lessons and how to “virtuously” pursue success. It advanced an interpretation of traditional virtues as life lessons for young people, so that these virtues could transform an individual life in modern society. Thereby the morals of ancient sages could transfer to the modern, individual, and morality. The problem is just how the ideals of traditional Chinese culture have adjusted themselves to modern society. Following the phrase “after-virtue”, this effort can be called a pursuit of “after-sage”. Translated by Yan Xin from Zhexue Yanjiu 哲学研究 (Philosophical Researches), 2006, (2): 36–44     

Changing Worldviews: Responding to Betty Birner and Robert Masson

Worldviews are changed by higher viewpoints that can develop by metaphoric process, the equating of two formerly disparate known concepts. The equating results in a distortion—a tectonic reformation—of the associated fields of meanings that effects a rearrangement of associated concepts leading to new cognitive relations. We comment on reviews of our books Metaphoric Process (1984) and New Maps for Old (2001) by Robert Masson and Betty Birner. Metaphoric process may further understanding of the formation of diverse worldviews and their reconciliation.     

从伦理的视角看“三个代表”

“三个代表”重要思想,从伦理学上进行分析,饱含着深刻的伦理智慧,浸润着美善和正义的光华,它既可以理解为一种全新的政治伦理,又可以指谓一种进步的社会伦理,还可以从经济伦理、科技伦理和文化伦理等角度加以阐释与论证。因此,我们有理由认为,“三个代表”的伦理精神和伦理目标将构成当代中国社会的主流伦理,成为指导我国当前公民道德建设的伟大旗帜和促成中华伦理文化伟大复兴的理论指南。     

Reviews

A.W. Moore, Points of View
Monique Canto-Sperber, Jonathan Barnes, Luc Brisson, Jacques Brunschwig, and Gregory Vlastos, Philosophie grecque
Nancy Sherman, Making a Necessity of Virtue: Aristotle and Kant on Virtue
Robin Le Poidevin, Arguing for Atheism: An Introduction to the Philosophy of Religion
Paul Griffiths, What Emotions Really Are
Quassim Cassam, Self and World