肺保护策略机械通气的再评价

通常认为急性肺损伤/急性呼吸窘迫综合征(ALI/ARDS)患者应用肺保护策略机械通气可降低病死率,主要由于潮气量的降低。对已发表的随机对照研究再次分析,发现平台压与患者病死率明显相关。平台压低于30cmH2O时,潮气量可以在一定范围内增加,不影响患者预后。但选择小潮气量可能对病人有害。随机对照研究在试验设计、统计学分析、病人同质性等方面依然存在很多问题。从现有资料看,潮气量和平台压都很重要。     

癌症患者人格类型及其与应对策略、社会支持的关系

该研究旨在调查和分析癌症患者人格类型及其与应对策略、社会支持的关系。采用艾森克人格问卷简式量表、社会支持评定量表、医用应对问卷等测查工具对205名癌症病人进行调查。结果显示:1.癌症患者可以聚类为两类人格:温和健康型和身心障碍型;2.身心碍型患者的屈服应对显著高于温和健康型患者;3.身心障碍型患者的客观社会支持和主观社会支持都显著低于温和健康型患者。研究表明,癌症患者可分为温和健康型和身心障碍型两种人格类型。身心障碍型患者采用更多的屈服应对,同时获得的社会支持也更少。     

The Button to Make Poverty History &; How to Double Your Donation

Even if together we could make poverty history, we would not all do our part. The paper presents a device that makes it more likely for everybody to do his part. This is achieved by making everybody’s contribution dependent on the other people’s commitment to contribute given that certain conditions are fulfilled. Furthermore, a device is introduced which, based on the same general idea, doubles everybody’s donation. Finally, possibilities, assumptions and limitations of such devices are addressed.     

Effects of self‐explanation as a metacognitive strategy for solving mathematical word problems1

Abstract: This study examined how a metacognitive strategy known as self‐explanation influences word problem solving in elementary school children. Participants were 79 sixth‐graders. They were assigned to one of three groups: the self‐explanation group, the self‐learning group, or the control group. Students in each group performed a ratio word problem test and a transfer test. The results showed that students in the self‐explanation group outperformed students in the other two groups on both the ratio word problem test and on the transfer test. In addition, high explainers who generated more self‐explanations relating to deep understanding of worked‐out examples outperformed low explainers on both ratio word problem and transfer tests. The self‐explanation effect is discussed.     

企业培训中员工的学习动机与学习策略的探讨

本研究在研制学习过程问卷的基础上,探讨了航修企业员工培训中学习动机与学习策略的匹配关系。研究表明:(1)学习方式包括学习动机和学习策略两个成分;(2)实用型学习动机的员工倾向于采用实用型学习策略,而应付型学习动机的员工倾向于采用应付型学习策略。这一结果证实了Marton等人关于学生的学习动机决定其学习策略的理论。     

Infanticide and maternal aggression: Synchrony of male and female reproductive strategies in mice

Thirty-six percent of male mice from three strains attacked newborn pups sired by another male. No male attacked its own offspring. Females did not show differential aggression toward males likely (strangers) or unlikely (sires) to attack their pups. Both forms of aggression were unaffected by housing in rooms which did or did not contain the aggression targets. The three strains differed in strength of maternal aggression but not in the incidence of infanticide. Females showed more aggression when mated with males of the same, rather than a different, strain but no differences with intruders of the same or a different strain. Infanticide by males is best viewed as a postcopulatory, intermale-competition strategy, and maternal aggression as a counter strategy.     

Brief Report: Young Adult Women Resolving Interpersonal Conflicts

Little is known about the social cognitive development of young adults. Furthermore, existing studies of young adults tend to rely on college-age participants. A study of social cognition during interpersonal conflict was conducted with 100 young adult women (mean age = 25 years). The relationship of contextual variables to conflict-resolution strategy was examined. Strategy coding was done according to Selman's (1980) four-level model of interpersonal negotiation strategies. Of the features of context studied, the nature of the relationship between the participant and the other person (work-based, personal, or impersonal) was related to strategy use. Most strategies used (46%) were low-level unilateral strategies, e.g., giving in to the demands of the other person. Most participants reported conflicts at work. These data, taken with other research on young adults' perceived lack of ability at handling conflicts at work, suggest that constructive conflict management programs may be important for young adult women in the school-to-work transition.     

Coping and defence mechanisms: What are we assessing?

The present research study addresses the disparity between theoretical considerations and empirical evidence regarding the relationships between coping strategies and defence mechanisms. Self‐reported measures of coping and defences were administered to a Romanian adult sample (N = 542; 74.53% female, mean age = 31.28). Using structural equation modelling, models that assumed independence between coping and defences were compared with models that assumed the existence of relationships between the two concepts. Findings identified strong relationships between coping and defences, indicating large common variance between the two concepts. Furthermore, results suggested that coping and defences can be classified into two independent types of adaptation processes. Results of this research study suggested that coping and defences are facets of common adaptation processes.     

Exploring the Relationship Between Child Maltreatment,Intimate Partner Violence Victimization,and Self-Injurious Thoughts and Behaviors

Child maltreatment is considered a significant risk factor for young adult self-injury; however, the mechanisms that underlie this relationship are not yet understood. To elucidate this association, the mediating role of intimate partner violence victimization in the relationship between child maltreatment and self-injurious thoughts and behaviors was investigated. The sample consisted of 406 young adults (346 females; M_age = 19.87 years; SD = 1.72) involved in a couple relationship. Results of bootstrapping procedures demonstrated that intimate partner violence victimization mediated the relationship between child maltreatment and self-injurious behaviors but did not mediate the association between child maltreatment and self-injurious thoughts. Results suggest that young adults with a history of child maltreatment may be more likely to be exposed to IPV victimization, which, in turn, is associated with the use of self-injurious behaviors, but not the use of self-injurious thoughts. Findings highlight the utility of examining models that incorporate distal and proximal factors contributing to self-injury, and provide direction toward better understanding the relationship experiences of self-injuring young adults.     

新手—熟手—专家型教师心理特征的比较

为了更深入地了解教师的教学专长发展,采用了量表法分别对433名和469名新手型、熟手型、专家型教师进行了教学策略、成就目标定向、人格特征和职业承诺、职业倦怠两个比较研究。结果表明：⑴在教学策略、成就目标、人格特征上,专家型教师均优于熟手型教师,而熟手型教师又优于新手型教师;在职业承诺和职业倦怠上,专家型教师均优于熟手型教师和新手型教师,而熟手型教师与新手型教师不存在差异。⑵重视课前准备,成绩目标是其重要的工作动机是新手型教师的主要特征;课中策略水平较高,任务目标成为重要的工作动机,具有随和、宽容、乐群、能关心他人的人格特点是熟手型教师的主要特征;教学策略以课前计划、课后的评估、反思为核心,具有鲜明的情绪稳定性、理智、着重实际、自信心和批判性强的人格特点,职业的情感投入程度和职业成就感高是专家型教师的主要特征。⑶三类教师在课后的补救策略、成绩目标、内外向、继续承诺和情绪耗竭上没有显著差异是其共同点。