Dislocations in Bi-Pb-Sr-Ca-Cu-O superconductors

Abstract

Dislocations and dislocation networks in superconducting Bi-Pb-Sr-Ca-Cu-O have been observed by means of TEM, confirming that this compound is a layer structure with low stacking fault energy. On the basal plane, dislocations and dislocation networks dissociate into partial dislocations and partial dislocation networks. However, the dissociation of [010] dislocations is hardly observed, which is related to the structural characteristics of the compound.     

道德自我调节对亲社会行为和违规行为的影响

本文通过两个研究探讨道德自我调节对亲社会行为和违规行为的影响。研究一中,被试随机分为三组,分别抄写“正性特质词语”“负性特质词语”或“中性词语”,并回忆自己所经历的与关键词有关的事情。启动完成后,考察其捐助行为。结果发现,正性特质启动组被试愿意捐助的数目显著高于负性特质和中性词语启动组。研究二用同样的方法改变被试的道德自我知觉,然后对被试的作弊行为进行了考察。结果发现,正性特质启动组的作弊严重程度显著低于中性词语启动组,负性特质启动组的作弊发生率和作弊严重程度显著低于中性词语启动组。本研究表明,道德自我调节过程不一定遵循负反馈机制：虽然“道德净化效应”在本研究中得到了部分验证,但是我们的实验结果不符合“道德许可效应”的预期。     

Motivation as Mediator Between National Identity and Intention to Volunteer

Although there is a large volume of research on the relationship between social identity and volunteerism, little attention was given to national identity in volunteerism research. This study examined the role of national identity in motivating people to volunteer in the Chinese culture and its role in differentiating those who showed no interest in voluntary work (i.e. non‐volunteers) from those who wanted to volunteer but did not (i.e. potential volunteers). Two hundred ninety‐nine participants (age, M = 34.14 years) filled out a questionnaire on their demographics, experience of volunteering, intention to volunteer, volunteer motivations, and national identity. Results showed that a stronger national identity was associated with greater volunteer motivations. Mediation analyses further supported the positive indirect effect of national identity on intention to volunteer through strengthening volunteer motivations. Marital status was the only significant factor that differentiated current volunteers from potential volunteers. We concluded that citizens’ volunteer motivation increases with national identity, yet concrete measures to bring potential volunteers to actual volunteering need to be further explored. Copyright © 2012 John Wiley & Sons, Ltd.     

Issues in Museum Management Policies: Evidence from Xi’an,China

ABSTRACT

This article is based on a survey of 493 visitors to Shaanxi History Museum, Xi’an, China. The purpose of the research was to assess attitudes toward the exhibitions and the sources of visitor satisfaction, and the consequences of a free entry policy adopted by the Museum in response to the directive of the Communist Party of China Central Committee and State Administration of Cultural Heritage of January 23, 2008. Three dimensions for visitor satisfaction were found—an affective reaction to the modes of presentation, a cognitive reaction to learning about Chinese history, and an affective reaction of a sense of awe and pride in that history. As part of the pricing policy, additional charges are made for special exhibitions, and evidence exists of a consumer surplus for significant groups of visitors at current entry prices that are normally 20 RMB. In this article the authors discussed issues related to a need to adopt merchandising, the provision of better ancillary services, and the role that such services can play in enhancing visitor satisfaction.     

The immediate and sustained effects of acute exercise on planning aspect of executive function

ObjectiveThe purpose of this study was to clarify the immediate and sustained effects of an acute bout of exercise on the planning aspects of executive function.DesignThis study used a 2 × 4 true experimental design.MethodForty participants were randomly assigned to either the exercise or control groups and completed the Tower of London task prior to, immediately following, 30 min after, and 60 min after cessation of a 30 min, moderate intensity cycling exercise.ResultsAcute exercise positively impacted the total move score, which reflects planning efficiency, immediately after the cessation of exercise. Acute exercise also led to longer total initiation times, which were linked to better response inhibition of planning at 30 and 60 min after the cessation of exercise.ConclusionAcute exercise benefits planning, and the types of planning and the time points at which they were assessed modulate the relationship between acute exercise and executive function. Exercise-induced physiological and biological fluctuations have been proposed to explain the effects present immediately after exercise, and the mechanisms of such effects warrant further exploration.     

The effects of valence‐based and discrete emotional states on aesthetic response

There is increasing recognition that consumer aesthetics—the responses of consumers to the aesthetic or appearance aspects of products—has become an important area of marketing in recent years. Consumer aesthetic responses to a product are a source of pleasure for the consumer. Previous research into the aesthetic responses to products has often emphasized exterior factors and visual design, but studies have seldom considered the psychological aesthetic experience of consumers, and in particular their emotional state. This study attempts to bridge this gap by examining the link between consumers’ emotions and their aesthetic response to a product. Thus, the major goal of this study was to determine how valence‐based and discrete emotional states influence choice. In Studies 1 and 2, positive and negative emotions were manipulated to implement two different induction techniques and explore the effect of emotions on participants’ choices in two separate experiments. The results of both experiments confirmed the predictions, indicating that aesthetic responses and purchase intention are functions of emotional valence, such that both are stronger for people in a positive emotional state than for those in a negative emotional state. Study 2 also used a neutral affective state to establish the robustness of this observed effect of incidental affect. The results of Study 3 demonstrate that aesthetic response and purchase intention are not only a function of affect valence, but also are affected by the certainty appraisal associated with specific affective states. This research, therefore, contributes to the literature by offering empirical evidence that incidental affect is a determinant of aesthetic response.     

Sport type and interpersonal and intrapersonal predictors of body dissatisfaction in high school female sport participants

Through multiple group structural equation modeling analyses, path models were used to test the predictive effects of sport type and both interpersonal (i.e., mothers’ body dissatisfaction, family dynamics) and intrapersonal factors (i.e., athletic self-efficacy, body mass index [BMI]) on high school female sport participants’ (N = 627) body dissatisfaction. Sport types were classified as esthetic/lean (i.e., gymnastics), non-esthetic/lean (i.e., cross-country), or non-esthetic/non-lean (i.e., softball). Most participants reported low body dissatisfaction, and body dissatisfaction did not differ across sport types. Nevertheless, mothers’ body dissatisfaction was positively associated with daughters’ body dissatisfaction for non-esthetic/lean and non-esthetic/non-lean sport participants, and high family cohesion was predictive of body dissatisfaction among non-esthetic/lean sport participants. Across sport types, higher BMI was associated with greater body dissatisfaction, whereas greater athletic self-efficacy was associated with lower body dissatisfaction. These findings highlight the complex relationship between interpersonal and intrapersonal factors and body dissatisfaction in adolescent female sport participants.     

Adult Children’s Caregiver Burden and Depression: The Moderating Roles of Parent–Child Relationship Satisfaction and Feedback from Others

The issue of elderly care has generated great interest because today, most of us live in an aging society. It has been found that caring for one’s elderly parents is a stressful experience that is related to negative outcomes. In addition, accompanied with the decline in fertility may make adult children feel heavier caregiver’s burden. Therefore, the current study investigates moderators that may help reduce the caregiver burden. Following the conservation of resources theory (COR), we hypothesized that feedback from others and a good parent–child relationship serve as resources that may help the individual manage the stress associated with caring for his or her elderly parents. To examine our hypotheses, we collected data from 502 adult children who were primary caregivers for their elderly parents. All participants completed the Burden Assessment Scale (BAS), the Center for Epidemiological Studies Depression Scale (CES-D), the Feedback from Others Scale, and the Parent–Child Relationship Satisfaction Scale. Supporting our prediction, we found a positive correlation between the caregiver’s burden and the caregiver’s levels of depression. Furthermore, both moderation effects were significant. Consistent with our hypotheses, the relationship between caregiver burden and his or her level of depression was weaker when participants had high feedback from others or had a better parent–child relationship. Our findings highlight the view that possessing more resources may help the individual manage the stress associated with caring for elderly parents. Implications for issues related to elderly care are discussed.