生活事件对初中生抑郁的影响:自尊和反刍思维的链式中介作用

为了探讨生活事件、自尊、反刍思维和初中生抑郁之间的关系,研究采用青少年生活事件量表、自尊量表、反刍思维量表和儿童抑郁量表对684名初中生进行调查。结果显示：（1）生活事件与初中生抑郁呈显著正相关;（2）自尊和反刍思维在生活事件和初中生抑郁间起链式中介作用。生活事件不仅是触发初中生抑郁的重要外部因素,而且生活事件还会通过影响自尊和经由反刍思维对初中生抑郁产生间接作用。因此,减少和避免生活事件对初中生心理的冲击,增强其自尊水平,调整其负性认知方式是改善和预防初中生抑郁的重要途径。     

The Interplay Between Housing Stability and Child Separation: Implications for Practice and Policy

Greater understanding of how residential stability affects child separation and reunification among homeless families can guide both child welfare and homeless policy and practice. This article draws upon two longitudinal studies examining services and housing for homeless families and their relationship to family and housing stability. Both studies were conducted in the same state at roughly the same time with similar instruments. The first study, examining families’ experiences and outcomes following entry into the homeless service system in three counties in Washington State, found that at 18 months following shelter entry, families that are intact with their children were significantly more likely to be housed in their own housing (46%) than families that were separated from one or more of their children (31%). The second study, a quasiexperimental evaluation of a supportive housing program for homeless families with multiple housing barriers, found that the rates of reunification for Child Protective Services (CPS)‐involved families receiving supportive housing was comparable to that for families entering public housing without services, but significantly higher than the rate of reunification for families entering shelter. Taken together, the findings from both studies contribute to the evidence underscoring the importance of housing assistance to homeless families involved in the child welfare system.     

Is There Such a Thing as “Ultimate” Meaning? A Review of Fluid versus Fixed Models of Different Forms of Human Striving

A growing number of social psychological theories have posited that meaning-striving can be compensated for across domains; threats in one area can simply be addressed by gains in another. Other models argue that not all forms of meaning are created equal; certain forms of striving trump other ones. This review compares the assertions made by these different models related to meaning to illustrate that (a) with few exceptions, fluidity is central to meaning, and (b) despite such consensus on the fluid nature of meaning, existing models diverge on the existence and nature of “ultimate” meanings. Future directions for the empirical study of meaning and methodological considerations are discussed.     

西藏本教是藏传佛教最典型的代表——关于岷江上游本波教与钵第教的讨论

本文在历代藏学家就本波教与钵第教比较研究的基础上,通过对岷江上游本波教与钵第教宗教实体构成要素间的比较,以及对岷江上游本波教与钵第教信众的教派认同程度的分析,认为本波教与钵第教既有区别又有联系,共同构成了略别于汉传佛教的藏传佛教。从本波教的本土文化成分和对古印度佛教的藏族化程度来看,本波教是藏传佛教最典型的代表。     

Internet self-efficacy, the need for cognition, and sensation seeking as predictors of problematic use of the internet

We conducted a study of the relationships between Internet self-efficacy, sensation seeking, the need for cognition, and problematic use of the Internet. The study was based on a randomly selected sample of 979 adult Internet users. Hierarchical multiple regression analysis of these subjects' responses on a questionnaire consisting of relevant items indicated that Internet self-efficacy and sensation seeking positively predicted problematic Internet use. Contrastingly, the need for cognition was significantly negatively associated with problematic Internet use.     

赖氨酰氧化酶在动脉粥样硬化中的作用

赖氨酰氧化酶(lysyl oxidase,LOX)是一种铜依赖性氨基氧化酶,在多个组织器官中均有表达,能参与催化细胞外基质(extracellular matrix,ECM)中胶原和弹性纤维的赖氨酸残基交联,以维持细胞外基质的结构和功能正常.新近研究发现LOX与动脉粥样硬化亦有紧密关系.本文就LOX在动脉粥样硬化发生、发展过程中的联系作一综述.     

西方细菌学在中国的传播:1894-1949

西方现代细菌学19世纪中叶到20世纪初首先在法国建立,并在德国进一步发展.这一时期,也被介绍到中国.其进入中国有以下几条线索:传教士和来华医生带来有关知识;去西方留学人员带回有关新知识;西方细菌学研究机构在华设立分支机构;战争因素.     

What is behind the priority heuristic? A mathematical analysis and comment on Brandstätter, Gigerenzer, and Hertwig (2006)

Comments on the article by E. Brandst?tter, G. Gigerenzer, and R. Hertwig. The authors discuss the priority heuristic, a recent model for decisions under risk. They reanalyze the experimental validity of this approach and discuss how these results compare with cumulative prospect theory, the currently most established model in behavioral economics. They also discuss how general models for decisions under risk based on a heuristic approach can be understood mathematically to gain some insight in their limitations. They finally consider whether the priority heuristic model can lead to some understanding of the decision process of individuals or whether it is better seen as an as-if model.     

关于恶性肿瘤发病年轻化的思考

恶性肿瘤的发病多在50岁以后,以中老年人常见。近年发现青年(≤40岁)患癌有增高趋势。从恶性肿瘤的高危因素及分子机制方面,探讨恶性肿瘤发病年轻化的可能原因。辩证地剖析机体内部和外界环境之间的关系,是研究恶性肿瘤发病年轻化的重要环节。     

Using eye-tracking to study audio-visual perceptual integration

Perceptual integration of audio-visual stimuli is fundamental to our everyday conscious experience. Eye-movement analysis may be a suitable tool for studying such integration, since eye movements respond to auditory as well as visual input. Previous studies have shown that additional auditory cues in visual-search tasks can guide eye movements more efficiently and reduce their latency. However, these auditory cues were task-relevant since they indicated the target position and onset time. Therefore, the observed effects may have been due to subjects using the cues as additional information to maximize their performance, without perceptually integrating them with the visual displays. Here, we combine a visual-tracking task with a continuous, task-irrelevant sound from a stationary source to demonstrate that audio-visual perceptual integration affects low-level oculomotor mechanisms. Auditory stimuli of constant, increasing, or decreasing pitch were presented. All sound categories induced more smooth-pursuit eye movement than silence, with the greatest effect occurring with stimuli of increasing pitch. A possible explanation is that integration of the visual scene with continuous sound creates the perception of continuous visual motion. Increasing pitch may amplify this effect through its common association with accelerating motion.