A Unified Approach to Power Calculation and Sample Size Determination for Random Regression Models

The underlying statistical models for multiple regression analysis are typically attributed to two types of modeling: fixed and random. The procedures for calculating power and sample size under the fixed regression models are well known. However, the literature on random regression models is limited and has been confined to the case of all variables having a joint multivariate normal distribution. This paper presents a unified approach to determining power and sample size for random regression models with arbitrary distribution configurations for explanatory variables. Numerical examples are provided to illustrate the usefulness of the proposed method and Monte Carlo simulation studies are also conducted to assess the accuracy. The results show that the proposed method performs well for various model specifications and explanatory variable distributions. The author would like to thank the editor, the associate editor, and the referees for drawing attention to pertinent references that led to improved presentation. This research was partially supported by National Science Council grant NSC-94-2118-M-009-004.     

Sacrifices,Aspirations and Morality: Williams Reconsidered

When a person gives up an end of crucial importance to her in order to promote a moral aim, we regard her as having made a moral sacrifice. The paper analyzes these sacrifices in light of some of Bernard Williams’ objections to Kantian and Utilitarian accounts of them. Williams argues that an implausible consequence of these theories is that that we are expected to sacrifice projects that make our lives worth living and contribute to our integrity. Williams’ arguments about integrity and meaning are shown to be unconvincing when the content of projects is left open. However, a look at his later arguments suggests a reason to be concerned about defensible ethical projects as understood through what he refers to as “the morality system”. The problem for theories of this type turns out to be not merely conflicts between ethical projects and moral demands but making sense of some of the ethically relevant features of these projects. Accommodations to moral theories that leave room for ethical projects may be insufficient to explain such features, for example in cases where agents demand more of themselves than the theories require. Making the theories more demanding is also problematic. Williams’ view about the role ethics plays in our conception of the life we want to lead provides a better account of these cases.

中国雇员组织承诺特征之道德追溯

从现有文献的研究成果看,中国雇员特有的组织承诺特征可以总结为五点：一是从结构模型上的理想因子显现;二是情感承诺更加影响中国雇员的组织行为;三是承诺指向上级而非组织;四是离职动因注重在位能得到什么;五是集体主义与个人主义的冲突。通过对各个特征进行道德追溯,我们发现,“理想人格”解释了理想承诺,“仁”造就了中国雇员的情感承诺,“忠”的思想使承诺指向上级,离职动因在于“谨慎”思考,集体主义与个人主义的冲突改变了传统道德集体主义的提倡。     

现代世界观中的意识及其哲学难题

人是具身心智的存在者,其存在方式独特性在于:他既依赖于物理形态的身体,又有存在论上不可还原性的主观性。因此如何在现代世界观中一致且完备地解释和理解人遂成了心智哲学的大问题。如果坚持现代世界观的基本立场一致性,那么对意识的解释和理解不可避免存在着"难问题"所界定的不完备性。人们大致从三个进路来处理不完备性的局面。然而,原则上它们都无法实现一致且完备的要求,因为这里存在一个根本的局限,即不可能通过认识论的方法在两种存在论形式(无和有)之间实现等价转换。尽管在认识论上这是一个悲观的结局,但另一方面它又是积极的,因为它显示了个体经验在存在论上是独一无二的。     

You Make Your Own Luck

This essay takes up two questions. First, what does it mean to say that someone creates her own luck? At least colloquially speaking, luck is conceived as something out of an agent's control. So how could an agent increase or decrease the likelihood that she'll be lucky? Building on some recent work on the metaphysics of luck, the essay argues that there is a sense in which agents can create their own luck because people with more skill tend to have more opportunities to benefit from luck. Second, what implications does this conception of luck have for related topics such as how we evaluate performances (like shooting an arrow), including coming to know something? The ubiquitous presence of luck in our actions is often underappreciated. The essay argues that when we combine an expected outcomes view of luck with a counterfactual view of causation, the distinction between environmental and intervening veritic luck seems to disappear. We need a more nuanced view of how luck sometimes undermines credit for success in agents' actions. The upshot of this view is that while luck may undermine the creditworthiness of an agent's success, it only partially undermines creditworthiness.     

论疾病治疗的自然观

人体本身对各类疾病有着强大的自我抵制和修复能力,疾病的发生和康复有其自然的进展规律,治疗疾病的过程应遵循相关规律,并辅助人体的这些能力去促进机体的修复。而现实医疗中,人们在享受医学科技成果和医疗保障实惠的同时,常常伴有过度的医疗处置或过度忽视疾病的存在,从而影响疾病本身的自然康复进程,或加重病情,甚至造成二次伤害。本文从疾病治疗自然观的角度探讨了医生和患者在应对疾病时需了解的辩证思想,并就如何认识和应用疾病治疗的自然观去诊治疾病做一探讨。     

山西高校医学生生命观调查与分析

生命观是对生命态度、生命价值等问题的根本看法和观点。对山西3所医学院校医学生的生命观进行问卷调查,结果显示：医学生人生态度消极悲观、漠视生命;不能正确地看待死亡问题,缺乏正确的死亡观;对生命价值的理解呈现出多元化;学医期间的心理状态不是很好;期待学校采取有效措施加强生命观教育。因此,学校应发挥主导作用,因需施教,采取多种策略加强医学生的生命观教育,同时,家庭和社会也应发挥合力作用,共同促进医学生树立科学正确的生命观。     

The Judas Within: A Look at the Sexual Abuse Crisis in the Catholic Church

Drawing from normal accident theory, high reliability theory, and systems theory, we analyze the Charter for the Protection of Children and Young People that is promulgated by the United States Conference of Catholic Bishops in response to the sexual abuses of minors by clergy members. Although the Charter is a step in the right direction, there remain some areas that require immediate attention. In spite of the goodwill processes, the safety of minors must remain the concerted efforts and responsibilities of individuals at all the various levels if the Catholic Church is to prevent further cases of abuse from happening.     

应重视对马克思主义人生观的理论研究

马克思主义的人生观和世界观在马克思主义的历史唯物主义中是统一的。历史唯物主义明确反对从“抽象的人”、“人的当下存在”出发理解人生的有关问题,但这并不一定意味着坚持历史唯物论就要排斥从个体生命的视角研究人生的问题。我们的马克思主义理论研究和建设工作,应重视对马克思主义人生观理论的发掘和整理,为社会主义精神文明建设和和谐社会的构建作出贡献。     

从李泽厚的体用观看中医药学的现代化

实现中医药学的中国式现代化是传统深厚的中医学融入现代社会的必由之路。近年来的中医现代化研究虽取得了相当的成果,但却似乎仍然在中医体系的门前徘徊,难于深入其内在实质。对问题原因的探寻往往需要突破旧观念的哲学反思。中医现代化是中国现代化的一部分,借助李泽厚对中国现代化历程中体用的思考,有助于理解中医现代化进程中所遇到的问题。在明确现代中医的发展应以现代化为体,而关键在于体如何更好地结合中医实际应用后,许多疑问也随之涣然冰释。借由中医的现代化之路,整个人类医学体系的演进也增益了新的可能。