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Knowledge sharing is an important organizational resource and should be encouraged in the field of teaching. We used a cross-sectional design, and 796 teachers in primary or secondary schools completed measures of the Big Five personality traits, burnout, and knowledge sharing. The results showed that (a) in the regression model, the traits of extraversion and agreeableness were positively associated with knowledge sharing, but conscientiousness, openness, and neuroticism were not significant in predicting knowledge sharing; (b) burnout was negatively associated with knowledge sharing after controlling for personality; and (c) burnout moderated the relationship between personality and knowledge sharing; that is, compared with those with a high score for burnout symptoms, the relationship between personality and knowledge sharing was stronger for those with a low score for burnout symptoms. The results suggest that interventions aimed at reducing teachers' burnout might be helpful for improving their knowledge sharing. [ABSTRACT FROM AUTHOR]

Curcumin has been utilized in the treatment and prevention of disease, including cancer and cardiovascular disease, but the molecular mechanism behind such numerous effects remains unclear. To explore the molecular mechanism and action sites of curcumin at the cellular level, human hepatic L-02 cells were used to assess these effects. Microarray technology was employed to detect the gene expression of L-02 cells treated with curcumin. According to the microarray results and the data from the National Center for Biotechnology Information, the present study classified and concluded that these curcumin-sensitive genes were associated with diseases and their signaling pathway. The study supports the evidence for treating cancer and cardiovascular disease, and found certain potential marker genes for conducting systematic research into the effects of curcumin. A total of 80 genes were identified as significantly differentially expressed between samples treated with and without curcumin. Curcumin is capable of developing physiological reactions and functions by regulating the gene expression and affecting its signal transduction pathway. Tumor protein p63, MYC-associated factor X and certain other genes associated with tumors act on a potential therapeutic target, while apolipoprotein B receptor and oxysterol-binding protein-like 7, and their signaling pathways may be involved in the cardioprotective effects of curcumin. [ABSTRACT FROM AUTHOR]

We explored individuals' behavior in relation to level of trust when they encounter attractive or unattractive faces. Individuals' implicit responses were examined in Experiment 1 and their explicit responses in Experiment 2. Results of Experiment 1 indicated that the latency of the unattractive faces with words indicating trust or attractive faces with words indicating distrust (incompatible group) was twice as long as that of the attractive faces with trust words or unattractive faces with distrust words (compatible group). In Experiment 2, we used an investment game to measure individuals' explicit trusting behavior and found that participants gave significantly more money to attractive partners than they did to unattractive partners. These findings extend understanding of the relationship between perceptions of attractiveness and trust building. [ABSTRACT FROM AUTHOR]

Concerning the interdependence of married couples, the strengths of not only actors but also of partners might improve aging successfully. This study aimed to examine the actor and partner effects of resilience on well-being in Chinese older couples and the potential mediating role of spousal exchanges at the actor and partner levels. Using a 2-wave longitudinal design, a total of 158 Chinese couples (age range 60-97 years) completed measures of resilience, perceived spousal exchanges (spousal support and negative exchanges), and well-being. The results showed that (a) the dyad had significant congruence in resilience and well-being, respectively; (b) resilience had significant actor and partner effects on well-being within the dyad; and (c) negative spousal exchanges could not mediate the actor and partner effects of resilience on well-being, and a gender difference emerged for the mediation role of spousal support: Actor and partner effects of husbands' resilience on well-being were mediated by both partners' perceived spousal support, whereas the actor and partner effects of wives' resilience on well-being were not mediated by perceived spousal support. Focusing on couples' interdependence, this study highlighted the role of spousal resilience and support on successful aging. Interventions should focus on enhancing both partners' resilience and promoting mutual support within the couple. (PsycINFO Database Record [ABSTRACT FROM AUTHOR]

Objectives: This study aimed to evaluate the cardioprotective effects and mechanism of scutellarin (Scu) on heart ischaemia/reperfusion (I/R) injury by using an isolated Langendorff rat heart model. Methods: Myocardial function was evaluated via measurements of cardiac haemodynamic parameters. Myocardial infarct size was macroscopically estimated by using TTC staining. The release of creatine kinase (CK) and lactate dehydrogenase (LDH) was used to evaluate cardiac injury. GSH/GSSG, SOD, and MDA were determined as being indicators of oxidative stress. CRP, IL-6, and TNF-α were also analysed to assess inflammation in the heart tissues. Cardiomyocyte apoptosis was quantified by using a TUNEL kit. PPARγ, Nrf2, and NF-κB were assayed via Western blotting. Results: The results indicated that I/R induced significant cardiac dysfunction, myocardial infarct, and apoptosis, as well as decreasing the GSH/GSSG ratio, SOD activity, Nrf2 protein expression, and PPARγ protein expression, but increased levels of TNF-α, MDA, CRP, IL-6, and NF-κB. Conclusion: These data suggest that Scu attenuates cardiac I/R. [ABSTRACT FROM AUTHOR]

This study was conducted to evaluate the cardioprotective property of the aqueous extract of lavender flower (LFAE). The myocardial ischemia/reperfusion (I/R) injury of rat was prepared by Langendorff retrograde perfusion technology. The heart was preperfused with K-H solution containing LFAE for 10 min before 20 minutes global ischemia, and then the reperfusion with K-H solution was conducted for 45 min. The left ventricular developed pressure (LVDP) and the maximum up/downrate of left ventricular pressure i±dp/dtmax) were recorded by physiological recorder as the myocardial function and the myocardial infarct size was detected by TTC staining. Lactate dehydrogenase (LDH) and creatine kinase (CK) activities in the effluent were measured to determine the myocardial injury degree. The superoxide anion dismutase (SOD) and malondialdehyde (MDA) in myocardial tissue were detected to determine the oxidative stress degree. The results showed that the pretreatment with LFAE significantly decreased the myocardial infarct size and also decreased the LDH, CK activities, and MDA level, while it increased the LVDP, ±dp/dtmax, SOD activities, and the coronary artery flow. Our findings indicated that LFAE could provide protection for heart against the I/R injury which may be related to the improvement of myocardial oxidative stress states. [ABSTRACT FROM AUTHOR]

We investigated the relationship between social axioms and implicit attitudes toward people with disabilities. Participants were 101 undergraduate students (male = 30, female = 71) from a university in Beijing. Social axioms were assessed using the Social Axioms Survey (Leung et al., 2002) and implicit attitudes were measured using the Implicit Association Test (Greenwald, McGhee, & Schwartz, 1998). Data analysis showed that the social axiom dimension of fate control was negatively related to implicit attitudes toward people with disabilities. None of the other 4 social axiom dimensions was found to be correlated with implicit attitudes. [ABSTRACT FROM AUTHOR]

The symptoms of posttraumatic stress disorder and associated risk factors were investigated among health care workers in earthquake–affected areas in southwest China. 343 health care workers completed the Chinese version of the Impact of Event Scale–Revised 23 mo. after the Wenchuan Earthquake. The prevalence of probable PTSD was 19%. The significant risk factors identified for PTSD severity included being female, being bereaved, being injured, and higher intensity of initial fear. These findings suggest that PTSD is a common mental health problem among health care workers in earthquake–affected areas. The present information can be useful in directing, strengthening, and evaluating disaster–related mental health needs and interventions after an earthquake. [ABSTRACT FROM AUTHOR]

Abstract: First principles periodic slab calculations based on density functional theory (DFT) have been used to investigate the adsorption of H2 molecules on LiB (010) surface. Preferred adsorption sites, adsorption energy and electronic structure of the H2/LiB(010) systems were calculated separately. It was found that H2 adsorbed on the Li–B bridge site was more favorable than the other three sites (Li-top, B-top and hollow vertical). The calculated adsorption energy on the Li–B bridge site was 4.076eV, belonging to a strong chemical adsorption. The nature of H2 adsorbing on the LiB surface was mainly due to the interactions among H 1s, B 2s and B 2p states. On the Li–B bridge site, covalent bonds formed between B and H atoms, while Li and H atoms formed ionic bonds. [Copyright &y& Elsevier]

Using the normative data set of the Minnesota Multiphasic Personality Inventory-2 of the People’s Republic of China, this study examined the psychometric properties of the Personality Psychopathology Five facet subscales recently developed by Arnau et al. (2005). The internal consistency reliability, convergent and discriminant validity of the Psy-5 were found to be unsatisfactory. Results of confirmatory factor analysis (CFA) indicated that both item-to-facet factor structure (except the PSYC domain facets subscales) and facet-to-domain factor structure fit the data poorly. These findings suggested that the PSY-5 facet subscales may not be reliable and valid in population independent of those used to derive them. Thus, the utility of these facet subscales in clinical and research settings is premature at least for Chinese people at the present time. [ABSTRACT FROM AUTHOR]

FePt/B4C multilayer composite films with a Fe/Pt two-layer structure and a Fe/Pt/Fe sandwich structure were prepared by magnetron sputtering and subsequent annealing in vacuum. When the B4C interlayer thickness of the FePt/B4C films is bigger than 3 nm, a stable value of grain size, coercivity and hardness is observed. The characterizations of the microstructure demonstrate that the diffusion of B and C atoms in the FePt layer is so finite that the multilayer structure of the FePt/B4C films is maintained after annealing at 500 °C for 30 min. The finite diffusion of B and C atoms is responsible for the FePt grain growth confinement, grain and layer separation and eventually induces the stable value mentioned above. The single composite films may find application in substituting the traditional three-layer structure commonly used in the present data storage technology. [ABSTRACT FROM AUTHOR]