The quark potential model is used to investigate the low-energy elastic scattering of πN system. The model potential consists of the t-channel and s-channel one-gluon exchange potentials and the harmonic oscillator c...The quark potential model is used to investigate the low-energy elastic scattering of πN system. The model potential consists of the t-channel and s-channel one-gluon exchange potentials and the harmonic oscillator confining potential. By means of the resonating group method, a nonlocal effective potential for the πN system is derived from the interquark potentials and used to calculate the πN elastic scattering phase shifts. By considering the effect of QCD renormalization, the suppression of the spin-orbital coupling and the contribution of the color octet of the clusters （qq） and （qqq）, the numerical results are in fairly good agreement with the experimental data. The same model and method are employed to investigate the possible πN resonances. For this purpose, the resonating group equation is transformed into a standard Schrodinger equation in which the nonlocal effective πN interaction potential is included. Solving the Schrodinger equation by the variational method, we are able to reproduce the masses of some currently concerned πN resonances.展开更多
Background： Understanding leisure time physical inactivity is a priority in study sought to address this priority by examining whether the extraversion mediated through Elliot＇s （1999） 2 x 2 achievement goals. Wes...Background： Understanding leisure time physical inactivity is a priority in study sought to address this priority by examining whether the extraversion mediated through Elliot＇s （1999） 2 x 2 achievement goals. Westernized nations where participation rates are low. The present and emotional instability to leisure time exercise relationships were Methods： Participants were 116 female and 97 male volunteers from a Southwestern community （mean age = 37.21 years, range 24-69） who completed measures of extraversion, emotional instability, approach-avoidance achievement goals, and 7-day recall of leisure-time exercise. Multiple mediation models （Preacher and Hayes, 2008） were run to specifically examine our hypotheses. Results： The mastery-approach goal mediated the relationship from extraversion to overall exercise and strenuous intensity exercise. Results indicated emotional instability had direct effects on overall and strenuous leisure time exercise while also having significant （p 〈 0.05） indirect mediation paths through the performance-approach and avoidance goals. The extraversion and emotional instability models accounted from 15.89% to 29.82% of variance in the various self-reported exercise measures. Conclusion： The results suggest the promotion of leisure-time exercise would be improved in the studied personalities by manipulation of achievement goals. Copyright @ 2012, Shanghai University of Sport. Production and hosting by Elsevier B.V. All rights reserved.展开更多
This paper analyzed the relationship between entrepreneurial orientation and new product development perlormance based on the perspective of knowledge creation process. Through a questionnaire survey, we found that en...This paper analyzed the relationship between entrepreneurial orientation and new product development perlormance based on the perspective of knowledge creation process. Through a questionnaire survey, we found that entrepreneurial orientation is positively related to new product performance, and knowledge creation process plays a mediating role in this relationship. This article examines the role of entrepreneurial orientation on new product innovation performance in Chinese situations, and it is the first time to check the intermediary functions on each dimension of knowledge test between entrepreneurial orientation and new product development performance.展开更多
With China＇s rapid economic development, corporate social responsibility （CSR） plays greater impact on its direct stakeholder employees＇ organizational commitment （EOC）. A questionnaire survey was conducted on 4...With China＇s rapid economic development, corporate social responsibility （CSR） plays greater impact on its direct stakeholder employees＇ organizational commitment （EOC）. A questionnaire survey was conducted on 426 employees of high-tech enterprises within Jiangsu Province. Multiple regression method was used to test the hypothesis based on the questionnaire reliability and validity analysis. The results show that the four dimensions of CSR including employees responsibility, products responsibility, environment responsibility and charitable responsibility have positive effect on the affective commitment;while the continuance commitment might be more influenced by the environment and charitable responsibility. The regulatory focus plays a moderate effect between CSR and EOC. Promote regulatory focus have positive impact on affective commitment and negative impact on continuance commitment. Defense regulatory focus is just on the opposite.展开更多
基金The project supported by National Natural Science Foundation of China under Grant No.10675054
文摘The quark potential model is used to investigate the low-energy elastic scattering of πN system. The model potential consists of the t-channel and s-channel one-gluon exchange potentials and the harmonic oscillator confining potential. By means of the resonating group method, a nonlocal effective potential for the πN system is derived from the interquark potentials and used to calculate the πN elastic scattering phase shifts. By considering the effect of QCD renormalization, the suppression of the spin-orbital coupling and the contribution of the color octet of the clusters （qq） and （qqq）, the numerical results are in fairly good agreement with the experimental data. The same model and method are employed to investigate the possible πN resonances. For this purpose, the resonating group equation is transformed into a standard Schrodinger equation in which the nonlocal effective πN interaction potential is included. Solving the Schrodinger equation by the variational method, we are able to reproduce the masses of some currently concerned πN resonances.
文摘Background： Understanding leisure time physical inactivity is a priority in study sought to address this priority by examining whether the extraversion mediated through Elliot＇s （1999） 2 x 2 achievement goals. Westernized nations where participation rates are low. The present and emotional instability to leisure time exercise relationships were Methods： Participants were 116 female and 97 male volunteers from a Southwestern community （mean age = 37.21 years, range 24-69） who completed measures of extraversion, emotional instability, approach-avoidance achievement goals, and 7-day recall of leisure-time exercise. Multiple mediation models （Preacher and Hayes, 2008） were run to specifically examine our hypotheses. Results： The mastery-approach goal mediated the relationship from extraversion to overall exercise and strenuous intensity exercise. Results indicated emotional instability had direct effects on overall and strenuous leisure time exercise while also having significant （p 〈 0.05） indirect mediation paths through the performance-approach and avoidance goals. The extraversion and emotional instability models accounted from 15.89% to 29.82% of variance in the various self-reported exercise measures. Conclusion： The results suggest the promotion of leisure-time exercise would be improved in the studied personalities by manipulation of achievement goals. Copyright @ 2012, Shanghai University of Sport. Production and hosting by Elsevier B.V. All rights reserved.
文摘This paper analyzed the relationship between entrepreneurial orientation and new product development perlormance based on the perspective of knowledge creation process. Through a questionnaire survey, we found that entrepreneurial orientation is positively related to new product performance, and knowledge creation process plays a mediating role in this relationship. This article examines the role of entrepreneurial orientation on new product innovation performance in Chinese situations, and it is the first time to check the intermediary functions on each dimension of knowledge test between entrepreneurial orientation and new product development performance.
文摘With China＇s rapid economic development, corporate social responsibility （CSR） plays greater impact on its direct stakeholder employees＇ organizational commitment （EOC）. A questionnaire survey was conducted on 426 employees of high-tech enterprises within Jiangsu Province. Multiple regression method was used to test the hypothesis based on the questionnaire reliability and validity analysis. The results show that the four dimensions of CSR including employees responsibility, products responsibility, environment responsibility and charitable responsibility have positive effect on the affective commitment;while the continuance commitment might be more influenced by the environment and charitable responsibility. The regulatory focus plays a moderate effect between CSR and EOC. Promote regulatory focus have positive impact on affective commitment and negative impact on continuance commitment. Defense regulatory focus is just on the opposite.
