In the seminiferous tubule of the mammalian testis, one type A1 spermatogonium (diploid, 2n) divides and differentiates into 256 spermatozoa (haploid, n) during spermatogenesis. To complete spermatogenesis and produce ∼150 × 106 spermatozoa each day in a healthy man, germ cells must migrate progressively across the seminiferous epithelium yet remain attach to the nourishing Sertoli cells. This active cell migration process involves precisely controlled restructuring events at the tight (TJ) and anchoring junctions at the cell–cell interface. While the hormonal events (...) that regulate spermatogenesis by follicle‐stimulating hormone and testosterone from the pituitary gland and Leydig cells, respectively, are known, less is known about the mechanism(s) that regulates junction restructuring during germ cell movement in the seminiferous epithelium. The relative position of tight (TJs) and anchoring junctions in the testis is of interest. Sertoli cell TJs that constitute the blood–testis barrier (BTB) are present side by side with anchoring junctions and are adjacent to the basement membrane. This intimate physical association with the TJs, the anchoring junctions and the basement membrane (a modified form of extracellular matrix, ECM) suggests a role for the ECM in the junction dynamics of the testis. Indeed, evidence is accumulating that ECM proteins are crucial to Sertoli cell TJ dynamics. In this review, we discuss the pivotal role of tumor necrosis factor α (TNFα) on BTB dynamics via its effects on the homeostasis of ECM proteins. In addition, discussion will also be focused on the novel findings regarding the role of non‐basement‐membrane‐associated ECM proteins and components of focal adhesion (a cell–matrix anchoring junction type) in the regulation of junction dynamics in the testis. BioEssays 26:978–992, 2004. © 2004 Wiley Periodicals, Inc. (shrink)

Compare with other professions, teachers are reported to have a higher risk of poor mental health. This study examined the relationships between emotional intelligence, perceived organizational justice, and mental health among Chinese high school teachers. Three hundred and eighty-one high school teachers, with their age range between 21 and 50 years, were administered the Emotional Intelligence Scale, Perceived Organizational Justice Scale, and Mental Health Scale. The result found that emotional intelligence and perceived organizational justice directly influence the mental health of (...) high school teachers. In addition, perceived organizational justice mediated the association between emotional intelligence and mental health. Moreover, the present study analyzes the different role of subtypes of perceived organizational justice on the relationships between emotional intelligence and mental health, and the results showed that the mediating effects of perceived distributive justice and interactive justice on emotional intelligence and mental health are not significant, only the perceived procedural justice mediated the relationships between emotional intelligence and teachers’ mental health. The results are discussed in a conceptual context. (shrink)

In lieu of an abstract, here is a brief excerpt of the content:Response to Elvira Panaiotidi, “The Nature of Paradigms and Paradigm Shifts in Music Education”Wenyi W. KurkulAt the beginning, I would like to congratulate Elvira Panaiotidi on her interesting paper and on her proposal to move beyond the long-running debates that began in the mid-1990s between Bennett Reimer and David Elliott and their respective supporters. I also applaud her affirmation that, beyond the numerous debates within the music-education philosophy (...) community, the ultimate goal is to put the theories to work in schools or, in other words, to convert theories into operative paradigms.Echoing her affirmation, I shared her article with a class of my graduate students after I received the invitation to respond to this paper. All of my graduate students are current schoolteachers in the greater Washington, DC metropolitan area in the United States. Some of them are young teachers; others have decades [End Page 114] of teaching experience. As a university professor, I have always been thrilled by how much my thoughts are inspired by my students—by their stories, writing, discussions, dialogues, and sometimes very challenging questions in class. Their concern for their daily jobs and their students constantly remind me of our responsibilities to the children in the schools. However, with our schools and students in mind, I have to ask the music education philosophy community a question: Is "producing a unified concept of music," or "searching for a unified approach," or even aiming to "develop a unified approach in music education" as proposed by Panaiotidi what we truly need?In her paper, Panaiotidi discusses the debate over the approaches in music education by Reimer and Elliott in the context of paradigm shifts. The term, "paradigm shift," was introduced by Thomas Kuhn in 1962 in his highly influential book, The Structure of Scientific Revolutions. Kuhn proposes that almost every significant break-through in the field of scientific endeavor is first a break with tradition, with old ways of thinking, with old paradigms. For example, until the germ theory was developed, there was a high percentage of deaths during childbirth and scientists were not sure why. Likewise, in military settings, more people were dying from small wounds and diseases than from the major traumas experienced on the frontlines. But as soon as the germ theory was developed, a whole new paradigm—a better, improved way of understanding what was happening—made dramatic and significant improvements in the practice of medicine possible.The United States today is the setting for another fruitful and powerful example of a dramatic paradigm shift. The traditional concept of government had been monarchical, based on the divine right of kings. It was not until centuries later that a significant break-through paradigm was developed: government of the people, by the people, and for the people. A constitutional democracy was born that unleashed tremendous human energy and ingenuity. This new paradigm, over time, generated personal empowerment, free enterprise, a higher standard of living, freedom and liberty, and influence and hope unequaled in the history of the world.Stephen R. Covey, the author of a popular book in the late 1980s, The Seven Habits of Highly Effective People, cites Kuhn's conception of paradigm shift to illustrate his own ideas. He describes an experiment at the Harvard Business School in which an instructor passed out a picture of a young woman to half of the class and a picture of an old woman to the other half. The students were asked to look briefly at the picture and pass it back. The professor then asked the class to describe the woman as he projected on a screen a picture of a woman that was a combined image of the "old" and "young" women. Needless to say, the students debated the age of the woman. If they had seen the "young" version, [End Page 115] they could see only a young woman now, and vice-versa. Each student was adamant about his or her position. They did not see the image in another way until the lines were pointed out to demonstrate the features of the old and young woman. Covey cites this exercise to prove the powerful conditioning effects of one... (shrink)

What could be a unifying principle for the manifold of temporal experiences: the simultaneity or temporal order of events, the subjective present, the duration of experiences, or the impression of a continuity of time? Furthermore, we time travel to the past visiting in imagination previous experiences in episodic memory, and we also time travel to the future anticipating actions or plans. For such time traveling we divide time into three domains: past, present, and future. What could be an escape out (...) of this “jungle of time” characterized by many different perceptual and conceptual phenomena? The key concept we want to propose is “identity” which is derived from homeostasis as a fundamental biological principle. Within this conceptual frame two modes of identity are distinguished: individual or self-identity required because of homeostatic demands, and object-related identity necessary for the reliability and efficiency of neuro-cognitive processing. With this concept of self- and object-identity, the different temporal experiences can be conceptualized within a common frame. Thus, we propose a fundamental biological principle to conceptually unify temporal phenomena on the psychological level. (shrink)

The present study is a cross-sectional survey that investigates ethical practices among Chinese psychotherapists from the perspective of a large representative sample of Chinese clients (N?=?1,100). In reports from clients, we found that psychotherapists did poorly in providing informed consent and had other ethical difficulties in the therapeutic setting and with dual relationships. We conclude that Chinese culture, especially Confucianism, had significant impact on the attitudes toward the psychotherapists' ethical practices, which complicated ethical dilemmas. It is important for cross-cultural psychotherapists (...) to become sensitive to the influences of traditional Chinese culture when counseling Chinese clients. (shrink)

Electroencephalogram has been widely utilized in emotion recognition. Psychologists have found that emotions can be divided into conscious emotion and unconscious emotion. In this article, we explore to classify subliminal emotions with EEG signals elicited by subliminal face stimulation, that is to select appropriate features to classify subliminal emotions. First, multi-scale sample entropy, wavelet packet energy, and wavelet packet entropy of EEG signals are extracted. Then, these features are fed into the decision tree and improved random forest, respectively. The classification (...) accuracy with Ei and WpEn is higher than MSpEn, which shows that Ei and WpEn can be used as effective features to classify subliminal emotions. We compared the classification results of different features combined with the decision tree algorithm and the improved random forest algorithm. The experimental results indicate that the improved random forest algorithm attains the best classification accuracy for subliminal emotions. Finally, subliminal emotions and physiological proof of subliminal affective priming effect are discussed. (shrink)

Evidence suggests that participation in plaza dancing may affect mental health. This study for the first time quantified the relationships between plaza dancing and psychological well-being and ill-being. We systematically searched PubMed, Web of Science, CNKI, Wanfang, and VIP to identify relevant studies published from the databases since their inception to July 25, 2021. The standardized mean differences of pre-to-post intervention data were calculated in the meta-analysis. Subgroup and meta-regression analyses were performed to test the potential moderating effects of age, (...) outcome classification, measurement instruments, district, publication year, total sample size, and the duration, frequency, and length of the square dance intervention. A total of 25 original articles met all the eligibility criteria and were included in the review, and 17 studies were included in the meta-analysis. The meta-analysis revealed that plaza dancing improved psychological well-being and reduced psychological ill-being. The study participants’ age and district did not seem to affect the effectiveness of the plaza dancing intervention. The duration and frequency of plaza dancing affected the association between square dance and psychological well-being and psychological ill-being. Plaza dancing has a significant positive effect on psychological well-being and psychological ill-being, and the effects are moderated by intervention modality. Generalizing plaza dancing interventions to promote psychological well-being and prevent or treat psychological ill-being is needed.Systematic Review Registration[www.crd.york.ac.uk/prospero], identifier [CRD42021272016]. (shrink)

In this study, I analyze how economic development projects and the ethnic tourism project in Southwest China have contributed to the failure of the ethnic Kachin villagers to observe taboos involved in shamanic healing rituals. Such a failure, initially as a local response to politico-economic processes in Southwest China, exacerbates the increasingly poor health status of Kachin shamans in the local community. Taboos thus become an active site where the local decline of animal sacrifice intersects with regional processes of economic (...) development. In examining this site, I propose a framework for understanding transformation of rituals in Southwest China, not simply as a response, or an appendix, to wider transformation in China at large, but as an integral part of China and its transformation. I also extend the relation between shamans' enhanced state of consciousness and the patients' recovery to that between the shamans' enhanced state of consciousness and their own health. (shrink)

In lieu of an abstract, here is a brief excerpt of the content:Response to Elvira Panaiotidi, “The Nature of Paradigms and Paradigm Shifts in Music Education”Wenyi W. KurkulAt the beginning, I would like to congratulate Elvira Panaiotidi on her interesting paper and on her proposal to move beyond the long-running debates that began in the mid-1990s between Bennett Reimer and David Elliott and their respective supporters. I also applaud her affirmation that, beyond the numerous debates within the music-education philosophy (...) community, the ultimate goal is to put the theories to work in schools or, in other words, to convert theories into operative paradigms.Echoing her affirmation, I shared her article with a class of my graduate students after I received the invitation to respond to this paper. All of my graduate students are current schoolteachers in the greater Washington, DC metropolitan area in the United States. Some of them are young teachers; others have decades [End Page 114] of teaching experience. As a university professor, I have always been thrilled by how much my thoughts are inspired by my students—by their stories, writing, discussions, dialogues, and sometimes very challenging questions in class. Their concern for their daily jobs and their students constantly remind me of our responsibilities to the children in the schools. However, with our schools and students in mind, I have to ask the music education philosophy community a question: Is "producing a unified concept of music," or "searching for a unified approach," or even aiming to "develop a unified approach in music education" as proposed by Panaiotidi what we truly need?In her paper, Panaiotidi discusses the debate over the approaches in music education by Reimer and Elliott in the context of paradigm shifts. The term, "paradigm shift," was introduced by Thomas Kuhn in 1962 in his highly influential book, The Structure of Scientific Revolutions. Kuhn proposes that almost every significant break-through in the field of scientific endeavor is first a break with tradition, with old ways of thinking, with old paradigms. For example, until the germ theory was developed, there was a high percentage of deaths during childbirth and scientists were not sure why. Likewise, in military settings, more people were dying from small wounds and diseases than from the major traumas experienced on the frontlines. But as soon as the germ theory was developed, a whole new paradigm—a better, improved way of understanding what was happening—made dramatic and significant improvements in the practice of medicine possible.The United States today is the setting for another fruitful and powerful example of a dramatic paradigm shift. The traditional concept of government had been monarchical, based on the divine right of kings. It was not until centuries later that a significant break-through paradigm was developed: government of the people, by the people, and for the people. A constitutional democracy was born that unleashed tremendous human energy and ingenuity. This new paradigm, over time, generated personal empowerment, free enterprise, a higher standard of living, freedom and liberty, and influence and hope unequaled in the history of the world.Stephen R. Covey, the author of a popular book in the late 1980s, The Seven Habits of Highly Effective People, cites Kuhn's conception of paradigm shift to illustrate his own ideas. He describes an experiment at the Harvard Business School in which an instructor passed out a picture of a young woman to half of the class and a picture of an old woman to the other half. The students were asked to look briefly at the picture and pass it back. The professor then asked the class to describe the woman as he projected on a screen a picture of a woman that was a combined image of the "old" and "young" women. Needless to say, the students debated the age of the woman. If they had seen the "young" version, [End Page 115] they could see only a young woman now, and vice-versa. Each student was adamant about his or her position. They did not see the image in another way until the lines were pointed out to demonstrate the features of the old and young woman. Covey cites this exercise to prove the powerful conditioning effects of one... (shrink)

This study examines why and when negative workplace gossip promotes self-serving behaviors by the employees being targeted. Using conservation of resources theory, we find that targets tend to increase their political acts as a result of ego depletion triggered by negative gossip. We also show that sensitivity to interpersonal mistreatment and moral disengagement moderate this process. Specifically, we demonstrate that targets with high levels of sensitivity to interpersonal mistreatment are more likely to experience ego depletion, and that targets with high (...) levels of moral disengagement will find it easier to persuade themselves to engage in political acts. We conducted a three-wave time-lagged survey of 265 employees in Guangdong, China, to test our hypotheses. The results support our theoretical model and indicate that COR theory can be used to explain the impacts of negative workplace gossip. Alongside our important and timely theoretical contributions, we provide new perspectives on how managers can avoid or mitigate these political acts. (shrink)

In view of the fact that vigorously promoting recycling has become a viable means to promote sustainable development, it is important to better understand the impact of recycling efforts on subsequent resource saving behavior. This research empirically examines the effects of recycling efforts on subsequent resource saving by analyzing the survey data of 356 college students in China. The recycling efforts, environmental self-identity and feeling of pride were measured using existing scales while saving behaviors and recycling cost were measured by (...) developing new scales. Partial least squares structural equation modeling was performed to test the structural relationships among recycling efforts, environmental self-identity, feeling of pride, and saving behaviors. Further, the moderation role of recycling cost was tested. The results showed that saving behaviors could be classified into two types based on their costliness; recycling efforts have a positive effect on costless saving behaviors, while having a negative effect on costly saving behaviors; both the positive and negative effect of recycling efforts on resource saving is mediated by pride feeling and environmental self-identity; and recycling cost negatively moderates the effects of recycling efforts on pride feeling. We discuss the theoretical and managerial implications of the findings. (shrink)

To understand the impact of the COVID-19 pandemic on postgraduate students’ internships in China, 911 students from different regions of China were surveyed through online questionnaires. Among the postgraduate students surveyed, 48.51% of which believed that the pandemic had its greatest impact on colleagues interaction, and 59.60% believed that the pandemic had a strong impact on practical skills. In total, 31.8% of postgraduate internship programs were impacted by COVID-19. The proportions of respondents having severe, moderate, and mild anxiety levels were (...) 1.42%, 4.72%, and 15.92%, respectively; and the rates of severe, moderate, and mild depression were 1.64%, 10.86%, and 21.84%, respectively. ANOVA found that major, degree type, and degree of impact of the pandemic on colleague interactions and improved practical abilities all affected postgraduate mental health. The findings suggest that the mental health of postgraduate students should be monitored during a pandemic, and targeted psychological counseling should be offered. Postgraduate internships should be emphasized as to ensure a smooth internship process during a pandemic period. Psychological counseling and assistance should be provided to those whose internships were affected by the pandemic, and programs should be set up to aid postgraduate students in adapting to the new internship and employment conditions brought on by the “new normal” of pandemic prevention and control. (shrink)

Reading presents an unsolved difficulty for children with hearing loss and research on factors influencing their literacy development is very limited. This work aimed to study the influence of home literacy environment on literacy development of children with hearing loss and explore possible mediating effects of reading interest and parent-child relationship. 112 Chinese children with hearing loss were surveyed for scales of HLE, literacy development, reading interest, and parent-child relationship. Result analysis showed that HLE significantly predicted literacy development of children (...) with hearing loss and this effect was no longer significant after including reading interest and parent-child relationship as variables. Further, HLE significantly predicted reading interest and parent-child relationship, each of which predicted literacy development and played a significant mediating role in HLE’s influence on literacy development. These findings provide educational tips for families of children with hearing loss. (shrink)

Learners’ willingness to communicate in a foreign language is regarded as a critical issue in educational contexts, so the role of emotional factors in learners’ willingness to communicate has drawn the attention of investigators. This review investigated the studies on the relationship between English as a Foreign Language learners’ grit, foreign language anxiety, and willingness to communicate. This review showed a significant relationship between learners’ grit and willingness to communicate. The earlier studies showed that gritty learners with incessant inspiring efforts (...) are more likely to communicate in a foreign language. This review also indicated that lower anxious learners tend to have more willingness to communicate. Earlier studies also indicated that the theories, such as broaden-and-build, positive psychology, dynamic system, affective filter, and attentional control can justify the relationships between these constructs. Moreover, the study has some pedagogical implications and suggestions for teachers, learners, syllabus designers, material developers, teacher educators, policy-makers, and advisors. The ideas can improve their awareness of teachers’ willingness to communicate, grit, and foreign language anxiety in educational environments. (shrink)

A one-day educational intervention with multiple activities was developed and operationalized with a sample of Chinese business students in Hong Kong, China. Its effectiveness in influencing students’ corporate social responsibility orientation was measured with a Chinese version of a forced choice scale using Economic, Legal, Ethical, and Discretionary dimensions by Carroll. A repeated measures multivariate analysis of variance showed significant differences in the Legal and Discretionary dimensions between the post-test Experimental group and Control group ; in the Legal, Ethical, and (...) Discretionary dimensions within the pre-post X group. Such significant differences may be explained by the content of the activities, especially the service learning component. Overall, the intervention appeared effective in influencing students’ CSRO within a Chinese context. Since it was designed upon Western CSR literature, its applicability goes beyond the Chinese community. (shrink)

Status in an organization is considered a significant antecedent to an employee's work-related behaviors. However, the relationship between knowledge workers' informal status and "taking charge" has been ignored in previous human resource management (HRM) research. Based on the self-consistency theory, this study examines the mechanisms underlying the influence of knowledge workers’ informal status on taking charge. Data were collected from 337 dyads of employees and their immediate supervisors in 24 enterprises and companies. Based on moderated mediation analysis, results indicated that (...) knowledge workers’ informal status is positively related to taking charge and organization-based self-esteem (OBSE). OBSE fully mediated the relationship between knowledge workers’ informal status and taking charge, while person-job fit (P-J fit) and person-supervisor fit (P-S fit) each moderated the relationship between knowledge workers’ informal status and OBSE, in addition to the indirect effect of knowledge workers’ informal status on taking charge. Specifically, the indirect effect was strongest when P-J fit or P-S fit was high. The theoretical and managerial implications of the findings, limitations of the study, and future research directions are discussed. (shrink)

This study examines the impact of corporate social responsibility activities on insider trading. While opponents of insider trading claim that the buying or selling of a security by insiders who have access to non-public information is illegal, proponents argue that insider trading improves economic efficiency and fairness when corporate insiders buy and sell stock in their own companies. Based on extensive U.S. data of insider trading and CSR engagement, we find that both the number of insider transactions and the volume (...) of insider trading are positively associated with CSR activities.We also find that legal insider transactions are positively related to CSR engagement even after controlling for potential endogeneitybias and various firm characteristics. Furthermore, our evidence suggests that firms perceive adjustment to CSR dimension of product as being efficient, while adjustment to diversity and environmental CSR as being inefficient. Our results of bad and illegal insider trading proxies are consistent with the interpretation that firms with high CSR ratings do not attempt to engage in unethical or bad insider trading in a significant fashion. Combined together, we consider our empirical evidence supportive of the fairness and efficiency explanation, but not the unfairness and inefficiency hypothesis. (shrink)

The choice of coping style of recruits under psychological stress in the process of military task execution has been an important topic in the promotion of military operations and cohesion of military forces. Taking a positive coping style under psychological stress can help recruits overcome the negative effects of stress and improve military morale and group combat effectiveness. Although soldiers' psychological stress in the process of military mission execution having an impact on coping style has been studied by a large (...) body of literature, very little literature has focused on the mechanism of self-efficacy and social support between recruits' psychological stress and coping style from the person-environment fit perspective. Therefore, this study was conducted to analyze the impact of recruits' psychological stress on coping style through a chain mediation model and to discuss the role of self-efficacy and social support in this relationship. Two waves of survey data were utilized to test the research hypotheses on a sample of 1028 Chinese recruits performing military tasks. The results indicated that recruits' psychological stress negatively impacted positive coping styles and positively correlated with negative ones. In addition, self-efficacy and social support mediated the relationship between psychological stress and positive coping style, and self-efficacy mediated the relationship between psychological stress and negative coping style. More importantly, self-efficacy and social support play the chain mediating effect between psychological stress and positive coping style. (shrink)

Study of the Tao of physics by Fritjof Capra, work on philosophy of physics.

The rise of China could be the most important political development of the twenty-first century. What will China look like in the future? What should it look like? And what will China's rise mean for the rest of world? This book, written by China's most influential foreign policy thinker, sets out a vision for the coming decades from China's point of view. In the West, Yan Xuetong is often regarded as a hawkish policy advisor and enemy of liberal internationalists. But (...) a very different picture emerges from this book, as Yan examines the lessons of ancient Chinese political thought for the future of China and the development of a "Beijing consensus" in international relations. Yan, it becomes clear, is neither a communist who believes that economic might is the key to national power, nor a neoconservative who believes that China should rely on military might to get its way. Rather, Yan argues, political leadership is the key to national power, and morality is an essential part of political leadership. Economic and military might are important components of national power, but they are secondary to political leaders who act in accordance with moral norms, and the same holds true in determining the hierarchy of the global order. Providing new insights into the thinking of one of China's leading foreign policy figures, this book will be essential reading for anyone interested in China's rise or in international relations. (shrink)

This paper develops and tests a new conceptual model incorporating the indirect impact of two ethical ideologies (idealism and relativism) on Chinese consumers’ ethical judgments under four ethically problematic consumption situations (active benefit, passive benefit, deceptive practice, and no/indirect harm) through two cultural values (integration and moral discipline). Data from a large-scale online consumer survey in five major Chinese cities (_N_ = 1046) support most hypotheses. The findings are consistent with the postulated global impact of ethical ideology on forming an (...) individual’s beliefs and values and highlight the importance of a thorough understanding of the significant determinants of consumer ethics to promote ethically responsible consumption behaviors. This study also uses an emic approach to conceptualize and measure Chinese cultural values by using cultural constructs and measures that are designed explicitly in the Chinese context. (shrink)

One purpose of cognitive diagnostic model is designed to make inferences about unobserved latent classes based on observed item responses. A heuristic for test construction based on the CDM information index proposed by Henson and Douglas has a far-reaching impact, but there are still many shortcomings. He and other researchers had also proposed new methods to improve or overcome the inherent shortcomings of the CDI test assembly method. In this study, one test assembly method of maximizing the minimum inter-class distance (...) is proposed by using mixed-integer linear programming, which aims to overcome the shortcomings that the CDI method is limited to summarize the discriminating power of each item into a single CDI index while neglecting the discriminating power for each pair of latent classes. The simulation results show that compared with the CDI test assembly and random test assembly, the new test assembly method performs well and has the highest accuracy rate in terms of pattern and attributes correct classification rates. Although the accuracy rate of the new method is not very high under item constraints, it is still higher than the CDI test assembly with the same constraints. (shrink)

For scholars, practitioners, and legislators concerned about sexual minority adolescents, one of the main goals is to create more positive and inclusive learning environments for this minority group. Numerous factors, such as repeated patterns of homophobic bullying by classmates and others in school, have been a significant barrier to achieving this goal. In addition, lesbian, gay, bisexual, transgender, and queer adolescents encounter substantial inequality across a broad spectrum of wellbeing and education consequences. Compared with their heterosexual counterparts, LGBTQ adolescents experience (...) more anxiety, depression, suicidal thoughts, antisocial behavior, poorer academic performance, less school attachment and protection, and a weaker desire to finish their studies. Such discrepancies based on gender and sexuality were linked to more maltreatment encountered by LGBTQ adolescents. It is crucial to recognize the backgrounds and expectations of LGBTQ adolescents to offer them the best resources. To overcome the inequality and obstacles faced by these LGBTQ adolescents, it is essential to examine tools and techniques that can be utilized. This study examined the literature that explains why society fails to provide enough support to LGBTQ students. Specifically, mechanisms explaining how LGBTQ adolescents interact with others in the learning environment and how such discrepancies arise will be examined. Following that, violence and prejudice, which are fundamental causes of psychological problems among LGBTQ adolescents, will be explored. This review paper thus provides supportive strategies for schools to develop more inclusive learning environments for LGBTQ adolescents. (shrink)

A 2 × 2 experiment was conducted to compare the effectiveness of using diagrams to writing summaries for students given biological information to learn and who possessed different levels of expertise in that topic area. A main effect of learning strategy used on number of idea units encoded was found: drawing diagrams was superior to writing summaries. However, no interaction effect between learning strategies and expertise was found. An examination of students’ subjective ratings of cognitive load revealed that those with (...) low expertise reported higher levels of cognitive load when constructing diagrams. These findings suggest that using diagrams is effective for identifying and encoding important information when learning, but that it would be helpful to provide guidance about diagram use particularly to students who are novices in the topic area to reduce cognitive load. (shrink)

Aiming at the problem of low pedestrian target detection accuracy, we propose a detection algorithm based on optimized Mask R-CNN which uses the latest research results of deep learning to improve the accuracy and speed of detection results. Due to the influence of illumination, posture, background, and other factors on the human target in the natural scene image, the complexity of target information is high. SKNet is used to replace the part of the convolution module in the depth residual network (...) model in order to extract features better so that the model can adaptively select the best convolution kernel during training. In addition, according to the statistical law, the length-width ratio of the anchor box is modified to make it more accord with the natural characteristics of the pedestrian target. Finally, a pedestrian target dataset is established by selecting suitable pedestrian images in the COCO dataset and expanded by adding noise and median filtering. The optimized algorithm is compared with the original algorithm and several other mainstream target detection algorithms on the dataset; the experimental results show that the detection accuracy and detection speed of the optimized algorithm are improved, and its detection accuracy is better than other mainstream target detection algorithms. (shrink)

Mutation and lateral transfer are two categories of processes generating genetic diversity in prokaryotic genomes. Their relative importance varies between lineages, yet both are complementary rather than independent, separable evolutionary forces. The replication process inevitably merges together their effects on the genome. We develop the concept of “open lineages” to characterize evolutionary lineages that over time accumulate more changes in their genomes by lateral transfer than by mutation. They contrast with “closed lineages,” in which most of the changes are caused (...) by mutation. Open and closed lineages are interspersed along the branches of any tree of prokaryotes. This patchy distribution conflicts with the basic assumptions of traditional phylogenetic approaches. As a result, a tree representation including both open and closed lineages is a misrepresentation. The evolution of all prokaryotic lineages cannot be studied under a single model unless new phylogenetic approaches that are more pluralistic about lineage evolution are designed. (shrink)

Statistical network models have been used to study the competition among different products and how product attributes influence customer decisions. However, in existing research using network-based approaches, product competition has been viewed as binary, while in reality, the competition strength may vary among products. In this paper, we model the strength of the product competition by employing a statistical network model, with an emphasis on how product attributes affect which products are considered together and which products are ultimately purchased by (...) customers. We first demonstrate how customers’ considerations and choices can be aggregated as weighted networks. Then, we propose a weighted network modeling approach by extending the valued exponential random graph model to investigate the effects of product features and network structures on product competition relations. The approach that consists of model construction, interpretation, and validation is presented in a step-by-step procedure. Our findings suggest that the weighted network model outperforms commonly used binary network baselines in predicting product competition as well as market share. Also, traditionally when using binary network models to study product competitions and depending on the cutoff values chosen to binarize a network, the resulting estimated customer preferences can be inconsistent. Such inconsistency in interpreting customer preferences is a downside of binary network models but can be well addressed by the proposed weighted network model. Lastly, this paper is the first attempt to study customers’ purchase preferences and car competition together using weighted directed networks. (shrink)