THE CONSEQUENCES OF METAPHYSICS: OR,CAN CHARLES PEIRCE'S CONTINUITY THEORY MODEL STUART KAUFFMAN'S BIOLOGY?

At the heart of the most radical proposals in Stuart Kauffman's Investigations is his attempt to show that we find in evolutionary biology some configuration spaces—the sets of possible developments for any given system—that (unlike those in traditional physics of Newtonian, relativistic, and quantum stripes) cannot be completely described in advance. We bring Charles Peirce's work on the philosophy of continuity to bear on the problem and discover, first, that Kauffman's arguments do not succeed; second, that Peirce's metaphysics provide new and sounder arguments for the same propositions; third, that Peirce's rigorous but nonstandard treatment of mathematical continuity shows great promise for modeling the unpredictability and growth we find in evolutionary biology; fourth, that it also strengthens a development only hinted at by biologists thus far—the inevitable involvement of the observer's mind in constituting the objects of science. We close with a logical argument for the surprising relevance of metaphysical hypotheses in the natural sciences and with suggestions for future work that will connect these questions to what Kauffman terms the “narrative stance” in biology.     

对麻醉药品的严格管理与癌症患者止痛的合理需求

药物止痛是治疗癌症疼痛的主要方法,而阿片类止痛药是治疗中、重度癌症疼痛的关键性用药。给癌症疼痛患者充分应用阿片类药物,并不意味着可以放松对此类药物的控制和管理,对麻醉药品进行严格管理可确保癌症疼痛患者合法、安全、合理用药。正确认识及合理使用麻醉药品是实现WHO提出“让癌症患者不痛”目标的重要保证。     

"I would do anything for my child, even quit tobacco": Bonus effects from an intervention that targets adolescent tobacco use

This paper aims to assess program bonus effects on adult tobacco use from a long-term intervention that targeted adolescent tobacco use. The school-based community intervention started in Västerbotten County in Sweden in 1993 and adults were invited to support adolescents to stay tobacco-free. It was combined with repeated cross-sectional surveys in schools annually 1994–99 among grades 7–9 and after 1999 every second year. Participating schools were randomly selected before the first survey representing both rural and urban settings. Out of 4,055 students, 1,008 (24.8%) reported that their supporting adult had been a tobacco user who quit tobacco in order to be allowed to participate. Out of these, 13.2% used tobacco daily before joining. The remaining 2,997 students' adult partners were not tobacco users. Engaging tobacco using adults as partners in interventions targeting adolescent tobacco use seem to have a considerable tobacco-reducing bonus effect in the adults.     

大学生人格与手机依赖的关系：压力感知的中介与性别的调节作用

为探讨压力感知在大学生人格与手机依赖关系中的中介作用以及性别在压力感知和手机依赖之间的调节作用,本研究采用青少年有问题手机使用自评问卷、中国大五人格问卷简版和大学生压力量表对1478名大学生施测。结果发现,神经质、开放性正向预测大学生的压力感知和手机依赖;宜人性负向预测压力感知和手机依赖;压力感知在神经质、宜人性、开放性影响手机依赖间起中介效应;性别调节神经质-压力感知-手机依赖这一中介效应的后半段路径。结果表明,降低压力感知水平可减少神经质大学生的手机依赖,且这一影响对男生更显著。     

民众收入不公平感的机制与对策——基于参照依赖和损失规避双视角

近年来,贫富差距的不断加大已引起民众较为强烈的收入不公平感,而导致收入不公平感产生的一个主要原因是人们对自己收入所得不如他人的相对比较。本项目基于预期理论价值函数的参照依赖和损失规避双视角,对当前民众收入不公平感的形成机制与管理对策进行系列实证研究;采用心理测量、实验室实验和干预研究相结合的方法,并借助神经电生理的ERP技术和心理生理学的多导生理记录仪(SCR),以检验民众收入不公平感的自我-他人参照、单参照点-多参照点比较的整合性参照依赖框架;探索损失规避对多得不均等和少得不均等的非对称不公平感的根源性作用和神经生理机制;选取社区居民,操纵参照对象、参照点和得失框架,进行多轮次和多变量的干预研究,以探索减少民众收入不公平感的应对策略,并据此提出切实有效的管理对策。     

The Effects of Parental Tobacco and Marijuana Use and Personality Attributes on Child Rearing in African-American and Puerto Rican Young Adults

We assessed the effect of the interrelationship of mothers’ and fathers’ tobacco and marijuana use with their personality attributes on some of their child rearing behaviors. We used a longitudinal design to analyze the data of 258 males and females who were seen four times over a 13-year period from early adolescence through young adult parenthood. Thirty-one percent of the multiple regression analyses revealed significant interactions between the effect of tobacco or marijuana use and a personality attribute on child rearing. The majority of these significant interactions suggested that protective personality characteristics were offset by substance use risks resulting in less adequate child rearing. If these results are substantiated in an experimental intervention, it suggests that having resilient personality attributes does not protect against the negative effects of tobacco or marijuana use on child rearing.     

What Truth Depends on

What kinds of sentences with truth predicate may be inserted plausibly and consistently into the T-scheme? We state an answer in terms of dependence: those sentences which depend directly or indirectly on non-semantic states of affairs (only). In order to make this precise we introduce a theory of dependence according to which a sentence φ is said to depend on a set Φ of sentences iff the truth value of φ supervenes on the presence or absence of the sentences of Φ in/from the extension of the truth predicate. Both φ and the members of Φ are allowed to contain the truth predicate. On that basis we are able define notions such as ungroundedness or self-referentiality within a classical semantics, and we can show that there is an adequate definition of truth for the class of sentences which depend on non-semantic states of affairs.     

On the explaining‐away phenomenon in multivariate latent variable models

Many probabilistic models for psychological and educational measurements contain latent variables. Well‐known examples are factor analysis, item response theory, and latent class model families. We discuss what is referred to as the ‘explaining‐away’ phenomenon in the context of such latent variable models. This phenomenon can occur when multiple latent variables are related to the same observed variable, and can elicit seemingly counterintuitive conditional dependencies between latent variables given observed variables. We illustrate the implications of explaining away for a number of well‐known latent variable models by using both theoretical and real data examples.     

Direction of dependence in measurement error models

Methods to determine the direction of a regression line, that is, to determine the direction of dependence in reversible linear regression models (e.g., x→y vs. y→x), have experienced rapid development within the last decade. However, previous research largely rested on the assumption that the true predictor is measured without measurement error. The present paper extends the direction dependence principle to measurement error models. First, we discuss asymmetric representations of the reliability coefficient in terms of higher moments of variables and the attenuation of skewness and excess kurtosis due to measurement error. Second, we identify conditions where direction dependence decisions are biased due to measurement error and suggest method of moments (MOM) estimation as a remedy. Third, we address data situations in which the true outcome exhibits both regression and measurement error, and propose a sensitivity analysis approach to determining the robustness of direction dependence decisions against unreliably measured outcomes. Monte Carlo simulations were performed to assess the performance of MOM-based direction dependence measures and their robustness to violated measurement error assumptions (i.e., non-independence and non-normality). An empirical example from subjective well-being research is presented. The plausibility of model assumptions and links to modern causal inference methods for observational data are discussed.     

Concurrent alcohol and tobacco use among school-going adolescents in Namibia: Prevalence and risk factors

The aim of this study was to investigate the prevalence and risk factors for concurrent alcohol and tobacco use among school-going adolescents in Namibia. Data were from a sample of 4 531 Namibian middle school children (females = 53.1%; mean age = 15.8 years, SD = 1.8 years). They completed the Namibia Global School-based Student Health Survey (GSHS) in 2013. Overall, 74.4% of alcohol users in the past month were frequent tobacco users; whereas 40.5% of tobacco users in the past month were frequent alcohol users. Compared to students who were neither alcohol nor tobacco users (63.1%), concurrent alcohol and tobacco users were more likely to self-report with a lack of parent support, to have used illicit drugs, to have engaged in school truancy, to be sedentary in behaviour, to have engaged in a physical fight, and to have had two or more sexual partners. Substance use prevention and treatment programmes with adolescents should routinely address their risk for comorbid tobacco and alcohol use.