SummaryData obtained with the aid of structured questionnaires from a Singaporean managerial sample (N = 228) were used to examine receptivity to an expatriate assignment in terms of the cultural similarity or dissimilarity of the country of relocation. Results of a paired t-test indicated that respondents were significantly more receptive to an expatriate assignment in a culturally similar location than in a culturally dissimilar location.Results of hierarchical regression analyses revealed mixed support for the study's propositions and explained only modest amounts of the variance in the culturally similar (R2 = 22 per cent) and dissimilar (R2 = 20 per cent) models. Limitations of the study, directions for future research and implications of the findings are discussed.
The authors examined the influence of individual and situational characteristics on the motivation to mentor. Respondents were managerial employees (N = 167) in the maintenance career stage employed in public and private sectors in Singapore. The model accounted for 41% (RJ2) of the explained variance in the motivation to mentor with the additive or main effects contributing 37% (AR 2) and the interaction terms contributing a modest 4% (AR 2). The significant findings indicate that the motivation to mentor may be predicted by individual characteristics (altruism, positive affectivity), situational characteristics (employee development-linked reward system and opportunities for interaction on the job), and their interaction terms (opportunities for interaction on the job and altruism). Limitations of the study, implications of the findings, and directions for future research are discussed.
This investigation examined the susceptibility to staining and translucency changes of some new tooth-colored restorative materials after immersion in different beverages. The materials studied were 3M Filtek Z350XT (ZT), 3M Filtek 350XT Flowable Restorative (ZF), Shofu Beautifil Flow Plus (BF), Shofu Beautifil II (B2), 3M Ketac Nano (N100), and 3M Photac Fil (PF). Following the manufacturers' instructions, 42 samples were made from each material and placed in an incubator at 100% humidity and 37°Celsius for 24 hours. Baseline L*, a*, b* readings were taken against white and black backgrounds using a photospectrometer. The samples were then randomly assigned to be immersed in seven beverages, namely cola drink, orange juice, red wine, vodka, black coffee, green tea, and distilled water for a period of seven days. Color readings were taken again by recording the L*, a*, b* values. Data was analyzed using t-tests, one-way analysis of variance with Tukey post hoc and Pearson's correlation (p<0.05). BF generally performed as well as the conventional composite resin materials (ZT and ZF) but N100 and B2 did not. PF had the largest staining and translucency changes. Coffee, red wine, and tea resulted in the most staining and negative translucency changes. An inverse correlation between ΔE and ΔTP was observed for all materials and beverages with the exception of orange juice.
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