农民工情绪性、弹性和坚韧性特质及其对心理健康的预测作用

采用"中国成年人情绪性量表""中国成年人心理弹性量表""中国成年人坚韧性量表""总体幸福感量表""SCL-10"对559名农民工进行了测试,旨在考察农民工情绪性、坚韧性和弹性特质的负载情况及其对心理健康的预测作用。结果表明,农民工的积极情绪性特质和坚韧性特质的负载量显著高于全国成年人常模,而弹性特质负载量显著低于全国成年人常模;情绪性、坚韧性和弹性特质对于主观幸福感具有显著正向预测作用,而对心理痛苦症状具有显著反向预测作用。     

Influence of school-level and family-level variables on Chinese college students’ aggression

With the frequent occurrence of campus violence, scholars have devoted increasing attention to college students’ aggression. This study aims to estimate the prevalence of aggression in Chinese university students and identify factors that could influence their aggression. We can thus find methods to reduce the incidence of college students’ aggression in the future. A multi-stage stratified sampling procedure was used to select university students (N = 4565) aged 16–25 years in Harbin. The Aggression Questionnaire, the Adolescent Self-Rating Life Events Checklist and the Social Support Revalued Scale were used to collect data. Females reported lower levels of aggression than males (p < .001). A multiple linear regression analysis was conducted to determine the influence of factors of aggression, and the model was highly significant (R² = .233, Ad R² = .230, p < .01). The results show that the aggression is affected by gender, family-level and school-level variables. Aggression scores are significantly correlated with not only family-level or school-level variables independently, but their combination as well. We find that the risk factors for aggression include a dissatisfying profession, higher levels of study pressure, poor parental relationships, poor interpersonal relationships, the presence of siblings, punishment, health maladjustment, less subjective support, and lower levels of utilization of social support.     

中药复方对铅染毒大鼠学习记忆障碍的改善作用

应用行为药理学方法研究铅对大鼠学习记忆影响的可能机制,并观察中药复方（驱铅灵）对铅染毒大鼠学习记忆障碍的改善效果。结果：（1）各染毒组大鼠Morris（第一、二、三、五、七轮）测试潜伏期显著延长;记忆保持百分率显著下降。（2）治疗后中药组的大鼠Morris水迷宫第2、3轮测试潜伏期显著短于阳性对照组,记忆保持率显著大于阳性对照组。（4）EDTA组和中药组。结论：中药复方对铅染毒大鼠学习记忆障碍具有良好的改善作用。     

系统化细菌鉴定方法的探索及其启示

细菌鉴定有着悠久的历史.随着现代科学技术的快速发展,许多新方法、新技术在细菌鉴定中广泛应用,大大提高了鉴定水平.细菌鉴定技术的发展历程,引发我们探索系统化细菌鉴定的新方法,并带给我们对认识事物、看待问题、进行科学思维、继承与创新等方面的哲学思考.     

Control of a virtual vehicle influences postural activity and motion sickness

Everyday experience suggests that drivers are less susceptible to motion sickness than passengers. In the context of inertial motion (i.e., physical displacement), this effect has been confirmed in laboratory research using whole body motion devices. We asked whether a similar effect would occur in the context of simulated vehicles in a visual virtual environment. We used a yoked control design in which one member of each pair of participants played a driving video game (i.e., drove a virtual automobile). A recording of that performance was viewed (in a separate session) by the other member of the pair. Thus, the two members of each pair were exposed to identical visual motion stimuli, but the risk of behavioral contagion was minimized. Participants who drove the virtual vehicle (drivers) were less likely to report motion sickness than participants who viewed game recordings (passengers). Data on head and torso movement revealed that drivers tended to move more than passengers, and that the movements of drivers were more predictable than the movements of passengers. Before the onset of subjective symptoms of motion sickness movement differed between participants who (later) reported motion sickness and those who did not, consistent with a prediction of the postural instability theory of motion sickness. The results confirm that control is an important factor in the etiology of motion sickness and extend this finding to the control of noninertial virtual vehicles.     

Motivating protégés' personal learning in teams: a multilevel investigation of autonomy support and autonomy orientation

This study examined the roles of 3 multilevel motivational predictors in protégés' personal learning in teams: an autonomy-supportive team climate, mentors' autonomy support, and protégés' autonomy orientation. The authors followed 305 protégés in 58 teams for 12 weeks and found that all 3 predictors were positively related to the protégés' personal learning in teams and that an autonomy-supportive team climate augmented the effects of mentors' autonomy support and protégés' autonomy orientation on protégés' personal learning in teams. Protégés' personal learning in teams mediated the interactive effects of an autonomy-supportive team climate with mentors' autonomy support or protégés' autonomy orientation on protégés' behavioral and attitudinal outcomes, including their organizational citizenship behaviors and job involvement. The findings of this study provide business researchers and practitioners with valuable insights into the management of autonomy.     

《企业管理者管理自我效能感问卷》的编制

该研究旨在编制适合我国企业状况的《管理者管理自我效能感问卷》(enterprise intendant managementself-efficacy questionnaire,EIMSEQ)。在初测的基础上,通过探索性因素分析确定了构成该问卷的8个维度。然后,得到了一个包含8个维度共64个项目的《管理者管理自我效能感问卷》。在天津市六家国有企业中,利用该问卷调查了475名中层管理者。数据分析表明,该问卷具有很好的信度和效度。     

Predicting unit performance by assessing transformational and transactional leadership

How do leadership ratings collected from units operating under stable conditions predict subsequent performance of those units operating under high stress and uncertainty? To examine this question, the authors calculated the predictive relationships for the transformational and transactional leadership of 72 light infantry rifle platoon leaders for ratings of unit potency, cohesion, and performance for U.S. Army platoons participating in combat simulation exercises. Both transformational and transactional contingent reward leadership ratings of platoon leaders and sergeants positively predicted unit performance. The relationship of platoon leadership to performance was partially mediated through the unit's level of potency and cohesion. Implications, limitations, and future directions for leadership research are discussed.     

Adolescent coping in different Chinese family environments

This study explored the relationship between family environment and adolescent coping in a Chinese sample. Four family types were identified with cluster analysis: (a) conflict-control, (b) structured, cohesive, expressive, and recreation-oriented, (c) structured, cohesive, and low conflict, and (d) unstructured and low control. Families with high cohesion, expressiveness, organization, low conflict, and low to medium level of control were associated with a more constructive coping style. Chinese adolescents tended to (a) mobilize personal resources, (b) seek help from social resources, and (c) adopt a philosophy of doing nothing as their major coping style when they had a positive perception of their family environment. This coping style was termed "fatalistic voluntarism." Finally, boys' coping behaviors were somewhat different from girls'. Girls tended to rely more on social support, whereas boys tended to avoid the problem or engage in blaming.     

Not letting the left leg know what the right leg is doing: limb-specific locomotor adaptation to sensory-cue conflict

We investigated the phenomenon of limb-specific locomotor adaptation in order to adjudicate between sensory-cue-conflict theory and motor-adaptation theory. The results were consistent with cue-conflict theory in demonstrating that two different leg-specific hopping aftereffects are modulated by the presence of conflicting estimates of self-motion from visual and nonvisual sources. Experiment 1 shows that leg-specific increases in forward drift during attempts to hop in place on one leg while blindfolded vary according to the relationship between visual information and motor activity during an adaptation to outdoor forward hopping. Experiment 2 shows that leg-specific changes in performance on a blindfolded hopping-to-target task are similarly modulated by the presence of cue conflict during adaptation to hopping on a treadmill. Experiment 3 shows that leg-specific aftereffects from hopping additionally produce inadvertent turning during running in place while blindfolded. The results of these experiments suggest that these leg-specific locomotor aftereffects are produced by sensory-cue conflict rather than simple motor adaptation.