PURPOSE: To a large extent, the recent global instability is responsible for the rapid structural mutation of the career landscape, thereby affecting individuals' career development, especially expatriates who are subjected to an acculturation process. Even though the cultural element exists in the career development literature, the implications of expatriate acculturation (EA) on individual expatriates' career competence (CC) and career sustainability (CS) remain understudied. Therefore, this study proposes to fill this gap in literature by exploring the intrinsic role EA plays in regulating the CC-CS interactions DESIGN/METHODOLOGY/APPROACH: For a more comprehensive analysis, we attempt to identify the effect on each dimension of CC, thus Reflective, Social, and Behavioural competencies (RC, SC, and BC), in the case of Chinese University postgraduate alumni from Africa. We conducted a double-layer analysis with 389 respondents' data samples FINDINGS/RESULTS: Results reveal that, at the aggregate level, the positive relationship between CC and CS is weakened by EA in the case of African postgraduates who studied at Chinese universities. The detailed analyses reveal that the negative effect of EA significantly undermines the RC-CS mechanism, but significantly strengthens the BC-CS interaction. Besides, the SC-CS mechanism is not significantly moderated by EA despite the negative acculturation tendencies PRACTICAL IMPLICATIONS: From the perspective of international interdependence, this research elucidates the magnitude and diversity of expatriates' contribution to the host country's career ecosystem ORIGINALITY/VALUE: Investigating from the career construction theory (CCT) perspective, this article aims to fill this gap by finding the moderating effect of EA on the CC-CS mechanisms

ABSTRACT Phytoene synthase (PSY) is the rate-limiting enzyme for carotenoid biosynthesis. To date, several studies focused on PSY genes in the context of abiotic stress responses. In this study, two phytoene synthase encoding genes, IbPSY1 and IbPSY2, were identified from a published transcriptome and bioinformatic analysis showed that they shared conserved domains with phytoene synthases from other plants. The IbPSY1 gene was cloned and carefully characterized. Digital gene expression profiling (DGE) showed that the highest transcription level of IbPSY1 was in young leaves, and the lowest level was in stems. In vivo expression levels of IbPSY1 under abiotic stress were observed to be highest in stems at day 11. Over-expression of IbPSY1 in Escherichia coli and yeast cells endowed the cells with better growth under salt and drought stress than the control cells. This study demonstrated that IbPSY1 not only played an important role in vivo, but also in E. coli and yeast to improve tolerance to salinity and drought stress. Thus, IbPSY1 may be aid in the development of transgenic plants with enhanced stress tolerance.

OBJECTIVES: The aim of the study was to determine rates of mask-wearing, of respiratory infection and the factors associated with mask-wearing and of respiratory infection in healthcare workers (HCWs) in Beijing during the winter of 2007/2008. METHODS: We conducted a survey of 400 HCWs working in eight hospitals in Beijing by face to face interview using a standardized questionnaire. RESULTS: We found that 280/400 (70.0%) of HCWs were compliant with mask-wearing while in contact with patients. Respiratory infection occurred in 238/400 (59.5%) subjects from November, 2007 through February, 2008. Respiratory infection was higher among females (odds ratio [OR], 2.00 [95% confidence interval {CI}, 1.16-3.49]) and staff working in larger hospitals (OR, 1.72 [95% CI, 1.092.72]), but was lower among subjects with seasonal influenza vaccination (OR, 0.46 [95% CI, 0.280.76]), wearing medical masks (reference: cotton-yarn; OR, 0.60 [95% CI, 0.39-0.91]) or with good mask-wearing adherence (OR, 0.60 [95% CI, 0.37-0.98]). The risk of respiratory infection of HCWs working in low risk areas was similar to that of HCWs in high risk area. CONCLUSION: Our data suggest that female HCWs and staffs working in larger hospitals are the focus of prevention and control of respiratory infection in Beijing hospitals. Mask-wearing and seasonal influenza vaccination are protective for respiratory infection in HCWs; the protective efficacy of medical masks is better than that of cotton yarn ones; respiratory infection of HCWs working in low risk areas should also be given attention.