Li Zhang

Background: Losing one’s only child may lead to post-traumatic stress disorder, of which re-experiencing is the core symptom. However, neuroimaging studies of sex differences in re-experiencing in the context of the trauma of losing one’s only child and PTSD are scarce; comparisons of the functional networks from the hippocampal subfields to the thalamus might clarify the neural basis.Methods: Thirty couples without any psychiatric disorder who lost their only child, 55 patients with PTSD, and 50 normal controls underwent resting-state functional magnetic resonance imaging. The functional connectivity from the hippocampal subregions to the thalamus and the correlations of FC with re-experiencing symptoms were analyzed within and between the sexes.Results: Compared with husbands without PTSD, wives without PTSD had higher re-experiencing symptoms and weaker FC between the right hippocampal cornu ammonis 3 and the right thalamus. Moreover, only the correlation between the RCA3-RT FC and re-experiencing in wives without PTSD was significant. Among the three groups, only the RCA3-RT FC in female subjects was markedly different. Additionally, the RCA3-RT FC in wives without PTSD was remarkably lower relative to female patients with PTSD.Conclusion: Wives without PTSD who lost their only child had worse re-experiencing symptoms relative to their husbands, which was associated with the FC alteration between the hippocampal subregions and the thalamus. Importantly, the low level of the RCA3-RT FC may play a potentially protective role against the development of PTSD in wives who have lost their only child.

This thesis investigates a sort of non-prioritized multiple revision, the operation of making up one's mind, and its generalization, the operation of choice revision. Making up one's mind about a sentence is a belief change that takes the agent to a belief state in which either the sentence or its negation is believed. In choice revision, the input information is represented by a set of sentences, and the agent should make a choice on which sentences to be accepted. Apart from being practically important, these operations are technically interesting since the standard approach of intersecting a set of optimal outcomes is not workable. Paper I provides a construction based on descriptor revision in which the operation of making up one's mind can be modelled in a ``select-direct'' way, which is different from the traditional ``select-and-intersect'' methodology employed in the AGM model. The article shows that this construction is axiomatically characterized with a set of plausible postulates, and investigates the additional postulates that correlate with properties of the construction. Paper II investigates a new modelling for sentential belief revision operations, which is based on a set of relations on sentences named believability relations. It demonstrates that two special kinds of such relations, i.e. H-believability relations and basic believability relations, are faithful alternative models of two typical sentential revision generated from descriptor revision. It also shows that traditional AGM revision operations can be reconstructed from a strengthened variant of the basic believability relation and there exists a close connection between this strengthened believability relation and the standard epistemic entrenchment relation. Paper III studies the constructions of choice revision based on descriptor revision and multiple believability relations, which extends the domain of believability relations from sentences to sets of sentences. It is shown that each of two variants of choice revision based on descriptor revision is axiomatically characterized with a set of plausible postulates, assuming that the object language is finite. Furthermore, without assuming a finite language, it is shown that choice revision constructed from multiple believability relations is axiomatically characterized with the same sets of postulates proposed for choice revision derived from descriptor revision, whenever these relations satisfy certain rationality conditions. Paper IV explores choice revision on belief bases. A generalized version of expansion operation called partial expansion is introduced for developing models of this kind of choice revision. Based on the partial expansion as well as two multiple contraction operations from the literature, two kinds of choice revision operators on belief bases are constructed. This paper proposes several postulates for such two operators and shows that they can be axiomatically characterized by such postulates. Furthermore, it investigates two kinds of making up one's mind operators generated from these two choice revision operators and presents the axiomatic characterizations of them.

Choice revision is a sort of non-prioritized multiple revision, in which the agent partially accepts the new information represented by a set of sentences. We investigate the construction of choice revision based on a new approach to belief change called descriptor revision. We prove that each of two variants of choice revision based on such construction is axiomatically characterized with a set of plausible postulates, assuming that the object language is finite. Furthermore, we introduce an alternative modelling for choice revision, which is based on a type of relation on sets of sentences, named multiple believability relation. We show without assuming a finite language that choice revision constructed from such relations is axiomatically characterized with the same sets of postulates that we proposed for the choice revision based on descriptor revision, whenever the relations satisfy certain rationality conditions.

With the service-dominant logic gradually replacing the traditional commodity-dominant reason, co-creating value with consumers has become an essential marketing practice for enterprises. As a critical information carrier in enterprise marketing communication, the co-creation signal impacts co-creation observers. Enterprises are now exploring how to effectively release co-creation signals to attract most observers to participate in value creation activities actively. Based on self-determination theory, this study investigates the influence mechanism of co-creation signals on observers’ willingness to co-create and the moderating role of mental simulation through the experimental method. The conclusions are as follows: The co-creation signal has a significant positive effect on the co-creation intention of observers. Self-designed co-creation signals generate more important co-creation willingness than self-produced co-creation signals; Self-determination and its dimensions mediate the relationship between co-creation signals and the observer’s co-creation willingness; and Mental simulation moderates the relationship between co-creation signal and self-determination. This study has important theoretical significance in enriching co-creation signals and mental simulation research. It also provides management implications for enterprises to release co-creation signals and optimize co-creation marketing practices effectively.

The objective of this study was to examine the association between resilience and trajectories of college students’ negative and positive affect during the COVID-19 pandemic. A total of 391 college students recruited from China completed a daily online negative and positive affect scale for 1 week, and their resilience was also measured. Profiles of brief trajectories of negative and positive affect over time were identified using the latent growth mixture model, and the effect of resilience on these trajectories was further explored. Two latent profiles of negative affect were found: a constant high negative affect profile and a slowly decreasing low negative affect profile, while three latent profiles of positive affect were identified: a slowly increasing high positive affect profile, a rapidly decreasing medium positive affect profile, and a constant medium positive affect profile. The optimism dimension of resilience predicted the membership in the various profiles significantly, whereas the prediction of tenacity and strength dimensions of resilience was not significant. Activities that promote resilience, especially optimism, should be included to improve the daily emotions of college students during COVID-19.

Multimodal neuroimaging provides a rich source of data for identifying brain regions associated with disease progression and aging. However, present studies still typically analyze modalities separately or aggregate voxel-wise measurements and analyses to the structural level, thus reducing statistical power. As a central example, previous works have used two quantitative MRI parameters—R2* and quantitative susceptibility —to study changes in iron associated with aging in healthy and multiple sclerosis subjects, but failed to simultaneously account for both. In this article, we propose a unified framework that combines information from multiple imaging modalities and regularizes estimates for increased interpretability, generalizability, and stability. Our work focuses on joint region detection problems where overlap between effect supports across modalities is encouraged but not strictly enforced. To achieve this, we combine L1, total variation, and L2 group lasso penalties. While the TV penalty encourages geometric regularization by controlling estimate variability and support boundary geometry, the group lasso penalty accounts for similarities in the support between imaging modalities. We address the computational difficulty in this regularization scheme with an alternating direction method of multipliers optimizer. In a neuroimaging application, we compare our method against independent sparse and joint sparse models using a dataset of R2* and QS maps derived from MRI scans of 113 healthy controls: our method produces clinically-interpretable regions where specific iron changes are associated with healthy aging. Together with results across multiple simulation studies, we conclude that our approach identifies regions that are more strongly associated with the variable of interest, more accurate, and more stable with respect to training data variability. This work makes progress toward a stable and interpretable multimodal imaging analysis framework for studying disease-related changes in brain structure and can be extended for classification and disease prediction tasks.

As professional football stadiums continue to grow in popularity worldwide, fans are able to watch the game in closer proximity, but the design of professional football stadiums to shorten the distance between fans and the playing field also exacerbates the impact of the home advantage on the referee’s decision to call a penalty. Studies have confirmed the existence of the home advantage and found that experienced referees can reduce the impact of this interference, but the neural mechanisms behind this phenomenon have not been adequately investigated. In this study, we designed a soccer referee decision making task based on a home field effect scenario in a real soccer game, and used event-related potentials to compare the decision making and EEG differences between individuals with different experience levels when faced with foul actions under spectator noise interference. The experiments showed that individuals with different experience levels triggered a significant ERN EEG component when performing the penalty decision task under the home field effect factor, suggesting that the interference of the home field effect may lead referees to correct their previous decision-making behavior patterns in the penalty decision and reduce unfavorable calls against the home team. In contrast, referees with officiating experience elicited smaller ERN amplitudes compared to other subjects, suggesting that experience factors may inhibit this tendency to change behavioral patterns. This study suggests that in response to the increasing trend of professional football stadiums, policy makers should place more emphasis on enhancing the experience level of referees in the training of referees to ensure the fairness of the game.

Patent strategy is increasingly recognized as a vital contributor in promoting core competitiveness of an enterprise. A top management team has been indicated as one of the key factors driving changes in patent strategy. Based on upper echelons theory, this study examines how TMT characteristics, including, team diversity, emotional intelligence, and safety climate, influence enterprise patent strategic change and, hence, the business outcome. The data from 930 top managers in 228 enterprises showed that the changes in patent strategies are significantly influenced by the characteristics of top managers. These aforementioned internal TMT factors have diverse effects on the speed and scope of the enterprise patent strategic change, which in turn affects firm performance in a positive and negative way, respectively.

A burgeoning body of research has shown that authoritarian leadership embodies the characteristics of “light” and “dark,” meaning that it does not always have a negative impact on employees’ creative activities. However, studies explaining this potential positive effect are insufficient. To extend the AL and creativity literature, we draw on self-determination theory and event system theory, and elicit discipline-focused AL and appointment event criticality to examine whether, when, and how authoritarian leaders affect employee creativity positively. With time-lagged data collected from 435 employees and their direct leaders in China, we found that discipline-focused AL has an indirect positive effect on employee creativity through creative self-efficacy. Additionally, appointment event criticality strengthens the positive relationship between discipline-focused AL and creative self-efficiency, and the indirect impact of discipline-focused AL on employee creativity through creative self-efficiency. The theoretical and practical implications are discussed.

Neurons encode and transmit signals through chemical synaptic or electrical synaptic connections in the actual nervous system. Exploring the biophysical properties of coupling channels is of great significance for further understanding the rhythm transitions of neural network electrical activity patterns and preventing neurological diseases. From the perspective of biophysics, the activation of magnetic field coupling is the result of the continuous release and propagation of intracellular and extracellular ions, which is very similar to the activation of chemical synaptic coupling through the continuous release of neurotransmitters. In this article, an induction coil is used to connect two HR neurons to stimulate the effect of magnetic field coupling. It is inevitable that time delays can affect the coupling process in the transmission of information, and it should be considered in the coupled model. Firstly, the firing characteristics and bifurcation modes of two coupled HR neurons are studied by using one parameter and two parameters bifurcation. With the increase of propagation delay and coupling gain, the chaotic state of neurons disappears and the high-period window decreases due to the influence of energy transfer between neurons. Then, the synchronization patterns of two HR neurons with different stimulation are analyzed by error diagrams and time series diagrams. It is confirmed that the synchronous pattern has certain regularity and is related not only to the neurons with large stimulation current but also to the time delay and coupling gain. The research conclusions of this article will provide the corresponding theoretical basis for medical experiments.

This study explores the dynamic feature of organizational citizenship behaviors under the condition of challenge stressors, as this has not been addressed by previous research. Combining the cybernetic theory of stress and social exchange theory, this study builds a dynamic computational model regarding the circular causality between challenge stressors and organizational citizenship behaviors. By conducting a series of simulation experiments, we validated and demonstrated important questions regarding organizational citizenship behaviors. Specifically, when both the initial value of challenge stressors and the importance of challenge appraisal are higher, organizational citizenship behaviors tend to show a sharped inverted U shape at the early stage. When both the equilibrium level of job satisfaction and the initial value of challenge stressors are higher, organizational citizenship behaviors will show an inverted N shape over time. The number and frequency of assigned challenge tasks have an interactive effect on the accumulation of organizational citizenship behaviors within a period. Our theory contributes to identifying the dynamic relationship between challenge stressors and organizational citizenship behaviors. Findings from dynamic computational theory can offer suggestions for managers to encourage employees’ engagement in organizational citizenship behaviors.

"54" New Culture Movement, go to school to learn a new female students quickly became an important literary magazine of the authors, the growth in the writer's process, the new literary journal and its sponsors, editors of the help and support played a very important the role. With the modern female authors publishing platform toward society and the reader, to collectively rising to the surface of history, the history of modern Chinese literature, the first generation of writers. The female students became rapidly one of the most important authors of the new literature magazines during the May-fourth movement. The editors and the managers of the magazines took key role to help the female authors to come to the modem literature stage and they became the first generation female authors in modem China literature history

Mr. Jin Yuelin at Tsinghua University since 1926 teaching logic to the 1984 death, the logic of teaching, research work over half a century old, the development of China's logic made ​​an indelible contribution. Mr. King published in 1936, the "logic", which is the first systematic introduction to modern logic to one of China's logicians, logic for the development of our clear direction. In the long teaching career, adhere to the truth of logic, to train a large number of logic expertise. What is the logic of Mr. King, the relationship between logic and logical thinking three laws, the relationship between implication and inference, inductive logic of the principle of such problems are never true in-depth inquiry, made ​​a thought-provoking insights. Mr. King will be the philosophy of logical analysis method used to complete the "Theory of Knowledge", "On the Road," two highly technical philosophical works. Philosophy of the new generation of open atmosphere

The main purpose of this paper is based on "psychological process analysis" made ​​a point of view the meaning of life class model analysis framework to explore the meaning of life led the study for a new direction. Research to a mountainous area of Nantou women living in the object, combined with narrative and holistic style sense inquiry, collection of relevant text information, the application of the spirit of grounded theory method of data analysis, the study found the following three two dimensions: 1. "See photos of life with the concept of destiny": the respondents referred to the concepts, beliefs, experience and ideas such as cognitive representations, to identify the respondents of the world, including the following four to degree: "Who am I?": I, I be, I won the self-concept; parent centers, human goodness and compete with the interpersonal concept; Shun, believe in God , anti-religious view of life and death; to "do" and "accept their fate," to integrate and explain the self-life philosophy. 2. "Tired of life operation and ultimate concern": the respondents mentioned the goals, motivation, exercise and other trouble with motivation and concerns the nature of the statements, respondents identify the life goals and life care, including the following three two dimensions: life speak trouble;  nurture the child's ultimate concern; social altruism feedback. 3. "Perception of the meaning of life": description of the study of perception and meaning of life sources, including: "Live" review and integration experience; "create" pleasant experience; ultimate hope other three sources. Final Frankl theory of meaning to the object as a dialogue, a comprehensive discussion of the preliminary findings support the "class analysis" of the theory, effectiveness and feasibility. This article hopes to open a meaningful research, process analysis from psychology and psychological perspective to enhance understanding of the way the human exploration of the meaning of life and process. The purpose of this study was to explore the concept of hierarchical analysis toward the study of meaning of life. It was based upon the conceptualization personality hierarchy model. A woman living on a remote mountain area and suffered repeatedly from severe natural disasters was invited to participate in this study. A holistic and qualitative approach was applied. It was found that: 1. There was a world-view category including Who am I?; Who are they?; Supernatural and transcendental beliefs; and philosophy of life. 2. There was a purpose / goal category including Daily hassles; Ultimate concerns; and Altruistic acts. 3. There was a meaningfulness category including Life review; Creativity and caring; and Ultimate hope. General discussion was done with a close reference to the meaning theory of Frankl . Results are supportive to the hierarchical conceptualization. The discussion provided also some preliminary support for the improvisation of the holistic approach within the qualitative research methodology