New advances in catalysts for C9 petroleum resin hydrogenation

C9 petroleum resin is a thermoplastic polymer produced by polymerization of C9 fraction obtaining from the steam cracking unit, and could be catalytic hydrogenated to remove the ethylenic C=C bond, aromatic ring with improved physical properties. The research progress in the efficiency supported nickel or/and palladium catalysts for C9 petroleum resin hydrogenation was illustrated and reviewed, further development was discussed

The oyster genome reveals stress adaptation and complexity of shell formation

The Pacific oyster Crassostrea gigas belongs to one of the most species-rich but genomically poorly explored phyla, the Mollusca. Here we report the sequencing and assembly of the oyster genome using short reads and a fosmid-pooling strategy, along with transcriptomes of development and stress response and the proteome of the shell. The oyster genome is highly polymorphic and rich in repetitive sequences, with some transposable elements still actively shaping variation. Transcriptome studies reveal an extensive set of genes responding to environmental stress. The expansion of genes coding for heat shock protein 70 and inhibitors of apoptosis is probably central to the oyster's adaptation to sessile life in the highly stressful intertidal zone. Our analyses also show that shell formation in molluscs is more complex than currently understood and involves extensive participation of cells and their exosomes. The oyster genome sequence fills a void in our understanding of the Lophotrochozoa. © 2012 Macmillan Publishers Limited. All rights reserved

Relationships of Social Support, Stress, and Health among Immigrant Chinese Women in Japan: A Cross-Sectional Study Using Structural Equation Modeling

Social support could help immigrant Chinese women in Japan to improve health. However, these women suffer from numerous stresses associated with acculturation and child-rearing, which could impact the effect of social support on mental and physical health. This study aims to identify the relationships among social support, acculturative stress, parenting stress, mental health, and physical health to propose a structural path model of these relationships and to evaluate the mediating role of stress between social support and health. A questionnaire was used to collect data for the main variables and demographic factors. A total of 109 women participated (mean age 33.9 +/- 5.6 years). The results show that immigrant Chinese women in Japan experienced a low level of mental health (44.7 +/- 9.8). Additionally, social support directly influenced parenting stress (beta = -0.21, p < 0.05), acculturative stress (beta = -0.19, p < 0.05), and mental health (beta = 0.31, p < 0.001) and indirectly influenced physical health (beta = 0.09, p < 0.05). Parenting stress partially mediated the association between social support and mental health (beta = 0.09, p < 0.05). To protect the effectiveness of social support on mental health, it is essential to reduce the parenting stress of immigrant Chinese women

Health-Related Quality of Life and Risk Factors among Chinese Women in Japan Following the COVID-19 Outbreak

The COVID-19 pandemic has significantly affected individuals' physical and mental health, including that of immigrant women. This study aimed to evaluate the health-related quality of life (HRQoL), identify the demographic factors and awareness of the COVID-19 pandemic contributing to physical and mental health, and examine the risk factors associated with poor physical and mental health of Chinese women in Japan following the COVID-19 pandemic outbreak. Using an electronic questionnaire survey, we collected data including items on HRQoL, awareness of the COVID-19 pandemic, and demographic factors. One hundred and ninety-three participants were analyzed. Approximately 98.9% of them thought that COVID-19 affected their daily lives, and 97.4% had COVID-19 concerns. Married status (OR = 2.88, 95%CI [1.07, 7.72], p = 0.036), high concerns (OR = 3.99, 95%CI [1.46, 10.94], p = 0.007), and no concerns (OR = 8.75, 95%CI [1.17, 65.52], p = 0.035) about the COVID-19 pandemic were significantly associated with poor physical health. Unmarried status (OR = 2.83, 95%CI [1.20, 6.70], p = 0.018) and high COVID-19 concerns (OR = 2.17, 95%CI [1.04, 4.56], p = 0.040) were significantly associated with poor mental health. It is necessary to provide effective social support for Chinese women in Japan to improve their well-being, especially in terms of mental health

Individual And Collective Innovative Use Of Enterprise System- Mediating Role Of Collective Learning

Although information system researchers have long recognized the possibility for collective-level information system use patterns and outcomes to emerge from individual-level IT use behavior, few have empirical the key factors involved in this individual-collective innovative use process. This study builds a research model drawing on the concepts to investigate how between individual innovative use in group influences collective innovative use of enterprise systems. And this study argues that collective learning plays the role of interactive processing among individuals, such that it can mediate the effect of individual innovative use on collective innovative use. To test the research hypotheses, a field study is conducted on 200 users in 55 work group of different enterprise in China. The results indicated that individual innovative use in group has an effect on collective innovative use, and the effect of individual innovative use on collective innovative use are mediated by collective learning