Evaluating the power of Minitab's data subsetting lack of fit test in multiple linear regression

Minitab's data subsetting lack of fit test (denoted XLOF) is a combination of Burn and Ryan's test and Utts' test for testing lack of fit in linear regression models. As an alternative to the classical or pure error lack of fit test, it does not require replicates of predictor variables. However, due to the uncertainty about its performance, XLOF still remains unfamiliar to regression users while the well-known classical lack of fit test is not applicable to regression data without replicates. So far this procedure has not been mentioned in any textbooks and has not been included in any other software packages. This study assesses the performance of XLOF in detecting lack of fit in linear regressions without replicates by comparing the power with the classic test. The power of XLOF is simulated using Minitab macros for variables with several forms of curvature. These comparisons lead to pragmatic suggestions on the use of XLOF. The performance of XLOF was shown to be superior to the classical test based on the results. It should be noted that the replicates required for the classical test made itself unavailable for most of the regression data while XLOF can still be as powerful as the classic test even without replicates.     

鸡传染性喉气管炎的诊治研究

对自然发病鸡群进行病毒分离、鉴定。通过人工感染发病的方法,研究了发病鸡的临床症状和病理变化,同时对试验病鸡进行了不同药物的治疗试验。结果表明,根据临床症状和病理变化只能做出初步诊断,确诊必须进行病毒分离。试验用的所有抗生素对治疗均无作用,中药穿心莲粉有较好的疗效。     

地方院校教育实习案例库建设的研究与实践

教育实习是实践教学的重要环节,教育实习案例是对教育实习各环节典型实例的记叙.叙述教育实习案例库建设的背景;阐明教育实习案例库建设的内容及其应用;建议案例库的完善和维护.     

论机场噪音损害赔偿的责任主体

我国机场噪音损害赔偿立法对责任主体制度的建构存在严重缺漏,法规体系多重“防治”而疏忽“补偿”。机场噪音损害责任主体是机场噪音损害赔偿制度体系建构的核心问题。从机场噪音产生的原因上探讨相关主体的赔偿责任是较为现实可行之道。航空公司应依据“无过错责任原则”承担赔偿责任,责任承担方式可通过其向机场缴纳的起降费中增加噪音防治费予以落实。机场应基于“过错推定原则”承担噪音损害赔偿责任,但因目前机场权属与管理的多样复杂性,具体的责任承担可具体分析。作为机场和周边建筑的规划方、建设方、环评方和审批方等相关部门单位,应依据“过错推定原则”对机场噪音损害承担连带赔偿责任。     

浅析知识产权侵权责任归责原则

知识产权侵权责任归责原则,主要存在三种学说:过错责任说,无过错责任说以及混合学说,本文从民法理论角度对混合学说、无过错责任说进行辨析,澄清理论分歧,并提出相应的建议。     

谈教育职业的专业化与专家型教师

教育职业的专业化,成为当今世界教育发展的大趋势,中国的教育也不能例外。教育质量要进一步提高,创新教学要开展,都呼唤大批专家型教师的涌现。要成为专家型教师,教师个体必须自觉强化专业角色,提高自我诊断能力,健全专业情意。     

行政赔偿归责原则之完善——以对民事赔偿归责原则的借鉴为视角

行政赔偿问题一直是社会关注的热点,它直接关系到行政机关的信誉和公民的切身利益。修改前的《国家赔偿法》规定行政赔偿采用违法归责原则,但是违法归责原则的不足影响了公平正义的实现。修改后的《国家赔偿法》虽然在总则中取消了违法性的要求,但仍存在不足之处。行政赔偿制度可以借鉴民事赔偿的归责原则,以过错原则作为违法归责原则的补充,从而更好地保障公民的合法权益,救济损害,维护社会正义。     

Evidence-Based Social Work Practice with Mentally Ill Persons who Abuse Alcohol and Other Drugs

Abstract

The current article outlines a comprehensive approach to evidence-based social work practice, and applies it to persons with severe and persistent mental illness who also abuse alcohol and other drugs. Representative empirical literature is summarized within a framework that delineates the three major functions of evidence-based social work practice: assessment, intervention and evaluation. Assessment protocol, which incorporates the use of valid scales to complement the qualitative interview, is based on domain-specific research that outlines relevant psychosocial risk factors, and highlights those that are amenable to change. Intervention strategies are derived from the growing body of controlled research findings, but flexibility in implementation is recommended to accommodate clients' individual needs and the vagaries of daily practice. Naturalistic evaluation methods are used to capitalize on the use of brief, valid process and outcome measures to augment individual qualitative evaluation and to aggregate data for program evaluation. The implications of this integrated evidence-based strategy for social work practice are discussed.     

The Good,the Bad and the Unhappy: The Cultural Meanings of Newspaper Reporting on Jackpot Winners

Accounts of jackpot winners and big gambling wins are common in Swedish newspapers. Analysis of over 2000 such newspaper articles reveals that their content is structured according to specific themes and cultural topics. Four such topics are identified: wealth as a test of morals and character, the social impact of wealth, the just and good world, and luck and the occult. Culturally structured narratives like these—which elaborate on mythological and moralistic schemes of good and evil, rewards and punishments, and which concern questions of human nature and social values—have a long history in folk tradition and in Christian moral teachings. Jackpot wins provide a discursive realm for moral and existential questions that, to some extent, fills a void left by the decline of traditional folklore and formal religion. Apparently, this discourse stimulates interest in games and constitutes one of the cultural roots of contemporary gambling.     

论持有型犯罪之主观罪过

程序上起诉机关对持有型犯罪主观罪过举证责任的免除并不意味着实体上主观罪过不再是该类犯罪的构成要件。坚持罪过责任原则，必须承认主观罪过是持有型犯罪的主观构成要件，其最大的意义在于被告人可以此进行无罪辩护。该类犯罪的主观罪过既可以由直接故意构成，也可以由间接故意构成。