The Effects of Hippocampal Lesions on Response, Direction, and Place Learning in Rats.

Rats with hippocampal or sham lesions were trained to find food on a T maze located at 2 positions. Response rats were required to make a right or left turn. Direction rats were required to go in a consistent direction (east or west). Place rats were required to go to a consistent location, relative to room cues. One place group had distinguishable start points at the 2 maze positions, whereas another place group had start points facing the same side of the room. Controls took longer to solve a place problem than the response and direction problems when the start points were not distinguishable. Rats with hippocampal lesions were not different than controls on the response problem but were impaired on the direction and place problems. (PsycINFO Database Record (c) 2010 APA, all rights reserved)     

Attachment, Self-Esteem, Worldviews, and Terror Management: Evidence for a Tripartite Security System.

On the basis of prior work integrating attachment theory and terror management theory, the authors propose a model of a tripartite security system consisting of dynamically interrelated attachment, self-esteem, and worldview processes. Four studies are presented that, combined with existing evidence, support the prediction derived from the model that threats to one component of the security system result in compensatory defensive activation of other components. Further, the authors predicted and found that individual differences in attachment style moderate the defenses. In Studies 1 and 2, attachment threats motivated worldview defense among anxiously attached participants and motivated self-enhancement (especially among avoidant participants), effects similar to those caused by mortality salience. In Studies 3 and 4, a worldview threat and a self-esteem threat caused attachment-related proximity seeking among fearful participants and avoidance of proximity among dismissing participants. The authors' model provides an overarching framework within which to study attachment, self-esteem, and worldviews. (PsycINFO Database Record (c) 2010 APA, all rights reserved)     

Gas turbine disk-blade attachment crack

Evaluation of a gas turbine disk revealed a crack in the blade attachment area. The subsequent effort to understand the origin of this crack led to a series of analyses that included computing the stresses on the attachment, characterization of fatigue crack growth, and a model for fretting fatigue crack growth. These elements were brought together to simulate the conditions that led to the cracking. It is concluded that the crack was probably caused by fretting fatigue induced by the stresses related to normal takeoff and landing cycles and exacerbated by aircraft maneuvers, and that short periods of blade resonance may have contributed to the cracking. If material had not been removed from the attachment surface of the disk by service-induced wear, it is likely more cracks would have been found.     

基于Petri网的交互式双机容错模型

传统的服务器容错模型大多采用复制和冗余机制，给系统造成大量垃圾．本文分析了数据库的体系结构，给出一个具有三层交互式的Petri网容错模型．实现了客错机制和容错策略的分离，体现了系统的动态特性．     

振动沉管灌注桩施工中的几个问题

分析振动沉管灌注桩复打后的桩身直径，所采用的桩尖，成桩质量控制、利用静载荷试验曲线判别其施工质量等几个问题，提出解决问题的方法，为设计和施工提供理论依据。     

基于层次细化Petri网的工作流参与者机制与动态特性研究

通过对工作流中参与者机制进行的分析，提出了一种基于Petri网的工作流参与者建模的方法，给出了参与者静态、竞争、优先和委托模型的Petri网表示，并对基于Petri网工作流变迁和位置节点的细化，揭示了工作流过程的执行阶段的任务分配与参与者状态之间的关系，表明工作流过程实例的真实执行路线是由参与者当时的状态动态决定的．     

Concordance in Attachment States of Mind and Styles With Respect to Fathers and Mothers.

It is believed that by adulthood, independent attachments to the mother and the father coalesce into a single state of mind with respect to attachment. If true, states of mind with respect to mothers and fathers should be concordant. Fifty-six young adults were administered two versions of the Adult Attachment Interview, each of which asked about their relationship with one parent. State of mind with respect to the father was significantly related to state of mind with respect to the mother, as were attachment styles regarding the two parents. Perceptions of attachment styles were not very related to corresponding states of mind but were related to inferred loving from a parent. (PsycINFO Database Record (c) 2010 APA, all rights reserved)     

The Mother-Infant Relationship in Single, Cohabiting, and Married Families: A Case for Marriage?

Single-mother, cohabiting 2-parent, and married 2-parent families with infants were compared on maternal and infant behavior, Home Observation for Measurement of the Environment (HOME) scores, and infant's security of attachment. Married mothers and their infants demonstrated more positive behavior and received higher HOME scores when the infant was 6 and 15 months old than did their cohabiting and single counterparts. Married families were also better off than single and cohabiting families on several demographic, parent personality, financial, and social context measures. Single and cohabiting families were similar across most measures. Selection variables (maternal age, ethnic group, and education) explained much, but not all, of the family structure differences in the mother-infant relationship and the HOME. Maternal psychological adjustment, attitudes about child rearing, income, and social support explained little of the family structure variation, suggesting that characteristics that preceded marriage and conception were important determinants of family structure differences. (PsycINFO Database Record (c) 2010 APA, all rights reserved)     

The Emotional Integration of Childhood Experience: Physiological, Facial Expressive, and Self-Reported Emotional Response During the Adult Attachment Interview.

Attachment researchers claim that individual differences in how adults talk about their early memories reflect qualitatively distinct organizations of emotion regarding childhood experiences with caregivers. Testing this assumption, the present study examined the relationship between attachment dimensions and physiological, facial expressive, as well as self-reported emotional responses during the Adult Attachment Interview (AAI). Consistent with theoretical predictions, more prototypically secure adults behaviorally expressed and reported experiencing emotion consistent with the valence of the childhood events they described. Insecure adults also showed distinctive and theoretically anticipated forms of emotional response: Dismissing participants evidenced increased electrodermal activity during the interview, a sign of emotional suppression, whereas preoccupied adults showed reliable discrepancies between the valence of their inferred childhood experiences and their facial expressive as well as reported emotion during the AAI. Results substantiate a case that the AAI reflects individual differences in emotion regulation that conceptually parallel observations of attachment relationships in infancy. (PsycINFO Database Record (c) 2010 APA, all rights reserved)     

Attachment Disorganization: The Reunion of Attachment Theory and Psychoanalysis.

The author investigates the psychoanalytic implications of recent attachment research on the disorganized attachment category in infants and the unresolved for trauma and loss adult attachment classification with which it has been associated. The author first reviews empirical findings on attachment disorganization and then explores the ways in which they are consistent with and illuminated by psychoanalytic concepts. The focus is on linkages between disorganized attachment and Freud's theory of strain trauma and traumatic anxiety, Klein's theory of projective identification and the interplay between paranoidschizoid and depressive anxieties in development, and Blatt's theory of psychological development as resulting from the interplay of anaclitic and introjective developmental lines. In so doing, this article contributes to the reunion between attachment theory and psychoanalysis. (PsycINFO Database Record (c) 2010 APA, all rights reserved)