We clarify different definitions of the density matrix by proposing the use of different names, the full density matrix for a single-closed quantum system, the compressed density matrix for the averaged single molecule state from an ensemble of molecules, and the reduced density matrix for a part of an entangled quantum system, respectively. We show that ensembles with the same compressed density matrix can be physically distinguished by observing fluctuations of various observables. This is in contrast to a general belief (...) that ensembles with the same compressed density matrix are identical. Explicit expression for the fluctuation of an observable in a specified ensemble is given. We have discussed the nature of nuclear magnetic resonance quantum computing. We show that the conclusion that there is no quantum entanglement in the current nuclear magnetic resonance quantum computing experiment is based on the unjustified belief that ensembles having the same compressed density matrix are identical physically. Related issues in quantum communication are also discussed. (shrink)
Ben shu fen wu ge zhuan ji,Xuan lu le wang wei guang,Zhang quan jing,Tian xin ming,Liang zhu,Li shen ming,Liu run wei,Zhou xin cheng deng fa biao zai deng qi kan shang de pi pan li shi xu wu zhu yi de wen zhang,Zhi zai yin dao guang da dang yuan gan bu shen ke ren shi li shi xu wu zhu yi de wei hai,Shi zhong jian chi wei wu shi guan,Jian jue fan dui li shi xu wu zhu (...) yi. (shrink)
This study uses an integrated model of resource conservation theory and social learning theory to explore the antecedents of hotel interns’ perceptions of occupational stigma and to explore the mechanisms inherent to retention willingness. This study first manipulated relevant subjects’ experimental materials through a contextual experiment and used a one-way ANOVA to test the effects of competence stereotypes and occupational stereotypes on hotel interns’ stigma perceptions, respectively, and then used partial least squares structural equation modeling as a statistical tool and (...) the SmartPLS 3.0 program to validate the model of hotel interns’ occupational stigma perceptions-intention. The effects of both competence stereotypes and occupational stereotypes on hotel interns’ perceptions of occupational stigma were significant. The results of the partial least squares structural equation model showed that hotel interns’ perceptions of occupational stigma significantly contributed to emotional exhaustion and that emotional exhaustion significantly influenced hotel interns’ retention willingness, hotel interns’ perceptions of occupational stigma had a significant effect on their retention willingness, while the role of emotional exhaustion as a mediating variable and occupational commitment as a moderator. The inner psychological and behavioral linkage mechanisms of hotel interns’ occupational stigma perceptions and their retention willingness under COVID-19 were explored, and the resource dynamics operating mechanism and professional commitment were also confirmed. (shrink)
Ben shu yi xing wei wu jia zhi er yuan lun wei yan jiu zhu xian, an zhao " ke guan gou cheng yao jian, pai chu ke guan wei fa de shi you, zhu guan gou cheng yao jian, pai chu zhu guan ze ren de shi you " si jie ceng fan zui lun ti xi de jia gou, cong ke guan yao jian, zhu guan yao jian, xiu zheng xing tai san ge wei du, lin xuan fan (...) zui lun ling yu de ruo gan zheng yi wen ti yi ci zhan kai tao lun. ben shu jian chi yi wen ti wei dao xiang, wei rao si fa shi jian ti chu de nan ti, shu li xue shuo de mai luo, kao cha li fa de tuo dang xing, dui ge zhong li lun he guan dian tiao fen lü xi, zhi li yu li lun, li fa yu si fa de liang xing hu dong he xie diao fa zhan, ti chu de fang an zai yi ding cheng du shang hui da le li lun he shi jian zhong de yi wen. (shrink)
The representatives of modern Neo-Confucianism all greatly value Yi Zhuan and regard it as one of their spiritual resources, and give their own creative interpretations and transformations. Xiong Shili's ontological-cosmological theory takes "qian yuan" as its center; Ma Yifu has a theory of ontology-cultivation centered on "nature-principle"; Fang Dongmei has a metaphysics of production and reproduction; Mou Zongsan takes the view of "completely knowing the fathomless and understanding transformation" as a moral metaphysics; and in Tang Junyi there is a theory (...) of the harmony of doctrines on Heaven and man in which "the knowledge of divine understanding" is its key concept. They employ modern philosophical concepts and thinking to illustrate the cosmology, ontology, theory of life, theory of human nature, theory of spiritual worlds, axiology and their connections in Zhou Yi. They affirm that the characteristics of Chinese philosophy that are different from Western philosophy consist in a naturalist view of vital life, a harmonious view of totality, an axiological view that values exist in natural universe and the world of fact, the pursuit of Good and Beauty, and intuitive experience of inner world. (shrink)
The importance of work stress on newcomers’ organizational socialization has been a topic of substantial interest. However, the impact mechanism of different stressors on newcomers’ organizational socialization is still in the early stages of theory development. This study, based on the theory of the dual work stress model, explored how to challenge stressors and hindrance stressors impact newcomers’ organizational socialization via the mediation of job crafting. Based on the empirical data from 247 newcomers, we found that challenge stressors positively affected (...) newcomers’ organizational socialization; on the contrary, hindrance stressors would result in negative influences. In addition, leader-member exchange enhanced the positive effect of challenge stressors on newcomers’ job crafting and further moderated the indirect influence of challenge stressors on newcomers’ organizational socialization via job crafting. These findings provide a practical guide for organizations to apply stress management and promote newcomers’ socialization. (shrink)
This paper is devoted to develop a nonlocal and time-delayed reaction-diffusion model for HIV infection within host cell-to-cell viral transmissions. In a bounded spatial domain, we study threshold dynamics in terms of basic reproduction numberR0for the heterogeneous model. Our results show that ifR0 1, virus will persist in the host environment.
Common spatial pattern is an effective algorithm for extracting electroencephalogram features of motor imagery ; however, CSP mainly aims at multichannel EEG signals, and its effect in extracting EEG features with fewer channels is poor—even worse than before using CSP. To solve the above problem, a new combined feature extraction method has been proposed in this study. For EEG signals from fewer channels, wavelet packet transform, fast ensemble empirical mode decomposition, and local mean decomposition were used to decompose the band-pass (...) filtered EEG into multiple time–frequency components, and the corresponding components were selected according to the frequency characteristics of MI or the correlation coefficient between its time–frequency components and the original EEG signal. Furthermore, phase space reconstruction was performed on the selected components after the three time-frequency decompositions, the maximum Lyapunov index was calculated, and the features were reconstructed; then, CSP projection mapping was used for the reconstructed features. The support vector machine probability output model was trained by the obtained three mappings. Probability outputs by three different support vector machines were then obtained. Finally, the classification of test samples was determined by the fusion of the Dempster–Shafer evidence theory at the decision level. The results showed that the accuracy of the proposed method was 95.71% on data set III of BCI competition II, which was 2.88% higher than the existing methods. On data set IIb of BCI competition IV, the average accuracy was 86.60%, which was 2.3% higher than the existing methods. This study verified the effectiveness of the proposed method and provided an approach for the research and development of the MI-BCI system based on fewer channels. (shrink)
In its three decades of development, many constructs of cause-related marketing have been tested from different perspectives and in varied contexts. However, there has not yet been an integrated empirical study. Reviewing 162 studies from 117 articles, we constructed a framework of meta-analysis and identified 20 constructs. Among these, 13 are antecedents that can be grouped into three components: consumer-related traits, execution-related factors, and product-related traits, while three mediators and four consequences are used to measure the effectiveness of cause-related marketing. (...) Moreover, we examined 857 relationships among the constructs. The results showed that consumer-related traits, execution-related factors, and product-related traits all influence the effectiveness of cause-related marketing to varying degrees. Furthermore, we analyzed the effects of six moderators and found that cause-related marketing would be more effective when the brand is familiar, the product is utilitarian, the donation magnitude is large, and the cause is less familiar. However, neither cultural orientation nor cause type significantly influences the effectiveness of cause-related marketing. Finally, the interactions between these moderators and execution-related antecedents provide contributions and implications for cause-related marketing. (shrink)
A small but growing body of research suggests that witnessing mistreatment affects third-party observers’ attitudes and behaviors. Based on the framework of belief in a just world theory, this study examines perverse secondary victimization which is particularly pervasive in negative workplace gossip from a third-party perspective but has nonetheless received little attention in organizational research. We present a moderated mediation model and hypothesize that third-party observers’ deservingness judgment would mediate the effect of observed negative workplace gossip and interact with their (...) just world beliefs in predicting their unfavorable reactions toward the target. Additionally, an observer’s BJW would exacerbate the positive relationship between observed negative workplace gossip and deservingness judgment, that is, third-party observers with high BJW are more susceptible to victim derogation bias and consider that the target of gossip deserved the victimization experience to maintain their worldview. Data were collected from 210 full-time employees through online questionnaires and the empirical results supported the hypotheses. The study discusses the theoretical and practical implications of the findings. (shrink)
The Temporal Experience of Pleasure Scale (TEPS) is a self-report instrument assessing pleasure experience. The present study aimed to confirm the factor model of the Chinese version of TEPS and test measurement invariance of the scale across gender in Chinese university students. Participants were 2977 (51% female) undergraduates aged from 16 to 27 years (Mean age = 18.9 years). Results indicated that the revised four-factor structure of the TEPS had acceptable fit in the total sample and in gender groups. Furthermore, (...) configural, metric and partial scalar invariance across gender were established. Two of the items (item 4 and 8) demonstrated different intercepts and women scored higher than men on both items. With partial scalar invariance demonstrated, test of differences in latent means indicated that men had lower levels of pleasure when compared with women. To our knowledge, this study is the first attempt to test the measurement invariance of the TEPS across gender, which provides support for future research that involves examining hedonic capacity in Chinese men and women. (shrink)
This study developed a measure of autonomy for adolescents in contemporary China. First, data from 44 interviewees—40 secondary school students, 2 parents, and 2 secondary school teachers—were used to explore the connotation and theoretical structure of autonomy in adolescents in China. Next, a preliminary Adolescent Autonomy Questionnaire was created from the interview data and administered to 775 secondary school students. Exploratory factor analysis and confirmatory factor analysis were conducted to verify the factor structure. Finally, 614 secondary school students completed the (...) Adolescent Autonomy Questionnaire, Personal Growth Initiative Scale-II, and Adolescence Ego Identity Crisis Scale to evaluate criterion validity. The final version of the Adolescent Autonomy Questionnaire included 16 items and four subscales: autonomous decision-making, autonomous regulation, autonomous protection, and autonomous problem-solving. The total variance of the cumulative interpretation questionnaire was 62.54%. The CFA results showed that the four-factor model fits the data well: χ2/df = 2.340, CFI = 0.949, RMSEA = 0.042, SRMR = 0.046. Evaluation of the psychometric properties of the Adolescent Autonomy Questionnaire provided support for the reliability and validity of the measure. Thus, it serves as an effective measurement tool for assessing the autonomy of adolescents in China. (shrink)
