A Simpler and More Realistic Subjective Decision Theory.Haim Gaifman &Yang Liu -2018 -Synthese 195 (10):4205--4241.detailsIn his classic book “the Foundations of Statistics” Savage developed a formal system of rational decision making. The system is based on (i) a set of possible states of the world, (ii) a set of consequences, (iii) a set of acts, which are functions from states to consequences, and (iv) a preference relation over the acts, which represents the preferences of an idealized rational agent. The goal and the culmination of the enterprise is a representation theorem: Any preference relation that (...) satisfies certain arguably acceptable postulates determines a (finitely additive) probability distribution over the states and a utility assignment to the consequences, such that the preferences among acts are determined by their expected utilities. Additional problematic assumptions are however required in Savage's proofs. First, there is a Boolean algebra of events (sets of states) which determines the richness of the set of acts. The probabilities are assigned to members of this algebra. Savage's proof requires that this be a σ-algebra (i.e., closed under infinite countable unions and intersections), which makes for an extremely rich preference relation. On Savage's view we should not require subjective probabilities to be σ-additive. He therefore finds the insistence on a σ-algebra peculiar and is unhappy with it. But he sees no way of avoiding it. Second, the assignment of utilities requires the constant act assumption: for every consequence there is a constant act, which produces that consequence in every state. This assumption is known to be highly counterintuitive. The present work contains two mathematical results. The first, and the more difficult one, shows that the σ-algebra assumption can be dropped. The second states that, as long as utilities are assigned to finite gambles only, the constant act assumption can be replaced by the more plausible and much weaker assumption that there are at least two non-equivalent constant acts. The second result also employs a novel way of deriving utilities in Savage-style systems -- without appealing to von Neumann-Morgenstern lotteries. The paper discusses the notion of “idealized agent" that underlies Savage's approach, and argues that the simplified system, which is adequate for all the actual purposes for which the system is designed, involves a more realistic notion of an idealized agent. (shrink)
Exploring English for medical purposes (EMP) teacher cognition in the Chinese context.Zhongkai Cao,Zaihong Zhang,Ya Liu &Liping Pu -2022 -Frontiers in Psychology 13.detailsIt has been a growing trend in Chinese universities to shift from English for general purposes to English for specific purposes teaching. Against this background, large groups of teachers previously engaged in teaching EGP have become or are becoming ESP teachers, which means a complex process of learning for subject-specific information, transforming teaching practices and constructing new identities. Despite this, very little has been written about the ESP teacher cognition of language teaching or the factors influencing this shift in teaching. (...) This study involved English for Medical Purposes teachers in Chinese universities as participants, and a scale of EMP TC with 31 items was developed on the basis of questionnaire results. Data from exploratory factor analysis revealed six dimensions of the scale, namely, teacher attitude, teacher belief, teacher learning, teacher support, role identification, and teacher practice—that combine to constitute and influence EMP TC. While the identity factor has attracted wide attention in ESP teacher research, other factors have largely been neglected. Thus, this research highlights the importance of more factors in shaping and changing the language teaching cognition of EMP or ESP teachers in large, especially the teacher belief factor. In addition, results of independent samples t-tests indicated significant difference in EMP teacher learning in terms of gender, differences in EMP teacher attitude and teacher support in terms of EMP teaching experience. Suggestions for enhancing EMP TC are offered on the basis of the conclusions of this research. (shrink)
Making sense of algorithms: Relational perception of contact tracing and risk assessment during COVID-19.Ross Graham &Chuncheng Liu -2021 -Big Data and Society 8 (1).detailsGovernments and citizens of nearly every nation have been compelled to respond to COVID-19. Many measures have been adopted, including contact tracing and risk assessment algorithms, whereby citizen whereabouts are monitored to trace contact with other infectious individuals in order to generate a risk status via algorithmic evaluation. Based on 38 in-depth interviews, we investigate how people make sense of Health Code, the Chinese contact tracing and risk assessment algorithmic sociotechnical assemblage. We probe how people accept or resist Health Code (...) by examining their ongoing, dynamic, and relational interactions with it. Participants display a rich variety of attitudes toward privacy and surveillance, ranging from fatalism to the possibility of privacy to trade-offs for surveillance in exchange for public health, which is mediated by the perceived effectiveness of Health Code and changing views on the intentions of institutions who deploy it. We show how perceived competency varies not just on how well the technology works, but on the social and cultural enforcement of various non-technical aspects like quarantine, citizen data inputs, and cell reception. Furthermore, we illustrate how perceptions of Health Code are nested in people’s broader interpretations of disease control at the national and global level, and unexpectedly strengthen the Chinese authority’s legitimacy. None of the Chinese public, Health Code, or people’s perceptions toward Health Code are predetermined, fixed, or categorically consistent, but are co-constitutive and dynamic over time. We conclude with a theorization of a relational perception and methodological reflections to study algorithmic sociotechnical assemblages beyond COVID-19. (shrink)
General Dynamic Dynamic Logic.Patrick Girard,Jeremy Seligman &Fenrong Liu -2012 - In Thomas Bolander, Torben Braüner, Silvio Ghilardi & Lawrence Moss,Advances in Modal Logic 9. London, England: College Publications. pp. 239-260.detailsDynamic epistemic logic (DEL) extends purely modal epistemic logic (S5) by adding dynamic operators that change the model structure. Propositional dynamic logic (PDL) extends basic modal logic with programs that allow the de nition of complex modalities. We provide a common generalisation: a logic that is dynamic in both senses, and one that is not limited to S5 as its modal base. It also incorporates, and signi cantly generalises, all the features of existing extensions of DEL such as BMS [3] (...) and LCC [21]. Our dynamic operators work in two steps. First, they provide a multiplicity of transformations of the original model, one for each action in a purely syntactic action structure (in the style of BMS). Second, they specify how to combine these multiple copies to produce a new model. In each step, we use the generality of PDL to specify the transformations. The main technical contribution of the paper is to provide an axiomatisation of this general dynamic dynamic logic (GDDL). This is done by providing a computable translation of GDDL formulas to equivalent PDL formulas, thus reducing the logic to PDL, which is decidable. The proof involves switching between representing programs as terms and as automata. We also show that both BMS and LCC are special cases of GDDL, and that there are interesting applications that require the additional generality of GDDL, namely the modelling of private belief update. More recent extensions and variations of BMS and LCC are also discussed. (shrink)
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Context-dependent Utilities.Haim Gaifman &Yang Liu -2015 - In Wiebe Van Der Hoek, Wesley H. Holliday & Wen Fang Wang,Logic, Rationality, and Interaction. Springer. pp. 90-101.detailsSavage's framework of subjective preference among acts provides a paradigmatic derivation of rational subjective probabilities within a more general theory of rational decisions. The system is based on a set of possible states of the world, and on acts, which are functions that assign to each state a consequence. The representation theorem states that the given preference between acts is determined by their expected utilities, based on uniquely determined probabilities (assigned to sets of states), and numeric utilities assigned to consequences. (...) Savage's derivation, however, is based on a highly problematic well-known assumption not included among his postulates: for any consequence of an act in some state, there is a "constant act" which has that consequence in all states. This ability to transfer consequences from state to state is, in many cases, miraculous -- including simple scenarios suggested by Savage as natural cases for applying his theory. We propose a simplification of the system, which yields the representation theorem without the constant act assumption. We need only postulates P1-P6. This is done at the cost of reducing the set of acts included in the setup. The reduction excludes certain theoretical infinitary scenarios, but includes the scenarios that should be handled by a system that models human decisions. (shrink)
Hybrid Logic of the Hide and Seek Game.Katsuhiko Sano,Fenrong Liu &Dazhu Li -forthcoming -Studia Logica.detailsThe logic of the hide and seek game $$\textbf{LHS}$$ was proposed to capture interactions between agents in pursuit-evasion environments. In this paper, we explore a hybrid extension of $$\textbf{LHS}$$ and show that such an extension is beneficial in several aspects. We will show that it improves the technical properties of the resulting logical system, and expands the potential applications of the system. Specifically, we will investigate the expressive power of the hybrid logic of the hide and seek game $${\mathcal {H}}(\textbf{LHS})$$ (...) and its crucial fragment $${\mathcal {H}}(\textbf{LHS}^{-})$$, at both model and frame levels. We will present complete Hilbert-style proof systems for both the logics $${\mathcal {H}}(\textbf{LHS}^{-})$$ and $${\mathcal {H}}(\textbf{LHS})$$, which in fact provides a solution to a known open problem. (shrink)
Exploring Senior High School Students’ English Learning Demotivation in Mainland China.Lixiang Gao,Honggang Liu &Xiaoxi Liu -2022 -Frontiers in Psychology 13:822276.detailsIn the last 20 years, much attention has been paid to learners’ demotivation. Researchers have conducted many studies on second/foreign language learning demotivation from the perspectives of social culture, social psychology, and so forth. In China, related studies have mainly focused on college students’ demotivation; scant attention has been paid to senior high school students. Regarding scale development, although much progress has been made, there remains a need for a scale with high reliability and validity that is suitable for students (...) in the basic education stage. Therefore, based on previous studies and choosing Chinese senior high school students as participants, this research study developed a scale with 55 items, and exploratory factor analysis (EFA) was used to develop a 28-item scale with six dimensions. The six-dimensional construct encompasses teacher knowledge, important others, teacher responsibility, learner-related factors, learning contents, and critical incidents, which are the key factors leading to English learners’ demotivation. Among them, the factor of critical incidents is new and has been overlooked by other researchers. Moreover, the descriptive analysis demonstrated the degree to which the demotivators influence learners, and the independent samplest-test found a significant difference in the impact of critical incidents in terms of the students’ language proficiency. Ultimately, four suggestions are put forward to remotivate and sustain learners’ motivation. (shrink)
Does CSR Engagement Deter Corporate Misconduct? Quasi-natural Experimental Evidence from Firms Joining a Government-Initiated Social Program in China.Feng He,Xin Huang,Guanchun Liu &Ziqiao Wang -2024 -Journal of Business Ethics 193 (3):555-587.detailsWe examine the impact of a government-initiated CSR project on corporate misconduct using the unique setting of China’s Targeted Poverty Alleviation (TPA) program. The difference-in-differences estimates show that firms participating in the TPA program engage in fewer misconduct activities than do their counterparts. This finding is robust to the parallel trends test, the placebo test, alternative regression specifications, alternative research designs, the reverse causality analysis, and the bivariate probit model with partial observability. Further analysis shows that TPA participation enhances the (...) ability of external financial professionals to monitor performance by stimulating the dissemination of TPA-related incremental information, thereby contributing to the decline in corporate misconduct. The cross-sectional heterogeneity analysis shows that the impact of TPA participation on corporate misconduct is more pronounced in firms with higher information asymmetry, with weaker political connections, and with weaker internal governance. Furthermore, we find evidence that TPA participation improves corporate financial performance but does not deteriorate information transparency. (shrink)
Philosophy of Engineering, East and West.Rita Armstrong,Erik W. Armstrong,James L. Barnes,Susan K. Barnes,Roberto Bartholo,Terry Bristol,Cao Dongming,Cao Xu,Carleton Christensen,Chen Jia,Cheng Yifa,Christelle Didier,Paul T. Durbin,Michael J. Dyrenfurth,Fang Yibing,Donald Hector,Li Bocong,Li Lei,Liu Dachun,Heinz C. Luegenbiehl,Diane P. Michelfelder,Carl Mitcham,Suzanne Moon,Byron Newberry,Jim Petrie,Hans Poser,Domício Proença,Qian Wei,Wim Ravesteijn,Viola Schiaffonati,Édison Renato Silva,Patrick Simonnin,Mario Verdicchio,Sun Lie,Wang Bin,Wang Dazhou,Wang Guoyu,Wang Jian,Wang Nan,Yin Ruiyu,Yin Wenjuan,Yuan Deyu,Zhao Junhai,Baichun Zhang &Zhang Kang (eds.) -2018 - Cham: Springer Verlag.detailsThis co-edited volume compares Chinese and Western experiences of engineering, technology, and development. In doing so, it builds a bridge between the East and West and advances a dialogue in the philosophy of engineering. Divided into three parts, the book starts with studies on epistemological and ontological issues, with a special focus on engineering design, creativity, management, feasibility, and sustainability. Part II considers relationships between the history and philosophy of engineering, and includes a general argument for the necessity of dialogue (...) between history and philosophy. It continues with a general introduction to traditional Chinese attitudes toward engineering and technology, and philosophical case studies of the Chinese steel industry, railroads, and cybernetics in the Soviet Union. Part III focuses on engineering, ethics, and society, with chapters on engineering education and practice in China and the West. The book’s analyses of the interactions of science, engineering, ethics, politics, and policy in different societal contexts are of special interest. The volume as a whole marks a new stage in the emergence of the philosophy of engineering as a new regionalization of philosophy. This carefully edited interdisciplinary volume grew out of an international conference on the philosophy of engineering hosted by the University of the Chinese Academy of Sciences in Beijing. It includes 30 contributions by leading philosophers, social scientists, and engineers from Australia, China, Europe, and the United States. (shrink)
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How Stable is Democracy?Patrick Grim,Mengzhen Liu,Krishna Bathina,Naijia Liu &Jake William Gordon -2018 -Journal on Policy and Complex Systems 4:87-108.detailsThe structure of communication networks can be more or less “democratic”: networks are less democratic if (a) communication is more limited in terms of characteristic degree and (b) is more tightly channeled to a few specifc nodes. Together those measures give us a two-dimensional landscape of more and less democratic networks. We track opinion volatility across that landscape: the extent to which random changes in a small percentage of binary opinions at network nodes result in wide changes across the network (...) as a whole. If wide and frequent swings of popular opinion are taken as a mark of instability, democratic communication networks prove far more stable than anti-democratic ones. In a fnal section, we consider the democratic or anti-democratic character of networks that respond to volatility by rewiring at random, in a search for community, or in a search for a leader. (shrink)
Quid Pro Quo in IPO Auctions.Jingbin He,Bo Liu &Hong Zou -forthcoming -Journal of Business Ethics:1-24.detailsIt is widely accepted that quid pro quo or favoritism exists in bookbuilding IPOs where the securities underwriter has share allocation discretion, and that auctioned IPOs should be largely free from quid pro quo because the underwriter does not have share allocation discretion. Using proprietary data on IPO auctions from China and a regulatory regime change on share allocation, we show that when the share allocation rule shifts from pro rata to lottery draw (that makes quid pro quo valuable to (...) a bidder), mutual fund families having stronger pre-shift brokerage commission ties with the underwriter submit bids later, place more strategic bids, have more bids qualified for the allocation round, and are more likely to receive share allocation than other fund families. These patterns are not apparent in fund families that possess a robust business culture. The evidence is consistent with the existence of quid pro quo in IPO auctions facilitated by the underwriter’s leakage of confidential bidding information in some fund family and underwriter pairs. This unethical practice not only creates conflicts of interest, jeopardizes fair play, but also discourages information production and affects accurate valuation. (shrink)
Promoting Pre-service Teacher Students’ Learning Engagement: Design-Based Research in a Flipped Classroom.Jianjun Gu,Lin Tang,Xiaohong Liu &Jinlei Xu -2022 -Frontiers in Psychology 13.detailsStudents’ learning engagement is recognized as one of the main components of effective instruction and a necessary prerequisite for learning, but students’ learning engagement in flipped classroom poses some pedagogical challenges. This study aimed to promote students’ learning engagement via the flipped classroom approach. Design-based research was adopted in this study to conduct an experiment involving three iterations in a Modern Educational Technology course in a Chinese university. The participants included 36 third-year pre-service teacher undergraduates. Classroom observations and a learning (...) engagement questionnaire were used to measure the effectiveness of the flipped instruction in terms of students’ learning engagement. Data analysis applied descriptive statistics, ANOVA, and paired samples t tests. The results showed that after three rounds of iterative experiments, students’ learning engagement significantly improved. Several principles are provided as guidelines for instructors to implement flipped classroom approach to promote students’ learning engagement. (shrink)
Automatic Decision-Making Style Recognition Method Using Kinect Technology.Yu Guo,Xiaoqian Liu,Xiaoyang Wang,Tingshao Zhu &Wei Zhan -2022 -Frontiers in Psychology 13.detailsIn recent years, somatosensory interaction technology, represented by Microsoft’s Kinect hardware platform, has been widely used in various fields, such as entertainment, education, and medicine. Kinect technology can easily capture and record behavioral data, which provides new opportunities for behavioral and psychological correlation analysis research. In this paper, an automatic decision-style recognition method is proposed. Experiments involving 240 subjects were conducted to obtain face data and individual decision-making style score. The face data was obtained using the Kinect camera, and the (...) decision-style score were obtained via a questionnaire. To realize automatic recognition of an individual decision-making style, machine learning was employed to establish the mapping relationship between the face data and a scaled evaluation of the decision-making style score. This study adopts a variety of classical machine learning algorithms, including Linear regression, Support vector machine regression, Ridge regression, and Bayesian ridge regression. The experimental results show that the linear regression model returns the best results. The correlation coefficient between the linear regression model evaluation results and the scale evaluation results was 0.6, which represents a medium and higher correlation. The results verify the feasibility of automatic decision-making style recognition method based on facial analysis. (shrink)
Association between prevalence rate of dementia with Lewy bodies and sleep characteristics in Chinese old adults.Jinghuan Gan,Shuai Liu,Fei Wang,Zhihong Shi,Yang Lü,Jianping Niu,Xinling Meng,Pan Cai,Xiao-Dan Wang,Zhichao Chen,Baozhi Gang &Yong Ji -2022 -Frontiers in Human Neuroscience 16:976753.detailsIntroduction: Few studies are available on the prevalence and sleep-related factors of dementia with Lewy bodies (DLB) in Chinese older adults, aiming to explore the associations between sleep characteristics and DLB.Methods: A cross-sectional study with 7,528 individuals aged ≥65 years in 106 communities in Northern China was conducted from April 2019 to January 2020. Questionaries (including demographic characteristics, comorbidities, lifestyles, and sleep characteristics) were administered, and neuropsychological assessments and physical examination were conducted in phase I; screening for probable DLB was (...) done in phase II. Logistic regressions were used to assess associations.Results: A total of 919 (12.2%, 919/7,528) participants had dementia, and 101 (1.3%, 101/7,528) participants were diagnosed with DLB. The prevalence of dementia and DLB were slightly higher or equal in women, increased with age, and roughly decreased with nighttime sleep duration. Of the 101 participants, all of them (100.0%) had cognitive impairment, 46 (44.54%) displayed fluctuating cognition, 72 (71.29%) of them showed visual hallucination, 22 (21.78%) individuals reported RBD, and 27.71% showed Parkinsonism. Sleeping for 8 h had combined diagnostic value for DLB (AUC = 0.783, 95%CI: 0.734–0.831, p< 0.001).Conclusions: The current prevalence of DLB is 1.3% in Northern China. Short or long nighttime sleep duration is independently associated with the occurrence of dementia and DLB. (shrink)
Kinematic Calibration of Industrial Robots Based on Distance Information Using a Hybrid Identification Method.Guanbin Gao,Yuan Li,Fei Liu &Shichang Han -2021 -Complexity 2021:1-10.detailsTo improve the positioning accuracy of industrial robots and avoid using the coordinates of the end effector, a novel kinematic calibration method based on the distance information is proposed. The kinematic model of an industrial robot is established. The relationship between the moving distance of the end effector and the kinematic parameters is analyzed. Based on the results of the analysis and the kinematic model of the robot, the error model with displacements as the reference is built, which is linearized (...) for the convenience of the following identification. The singular value decomposition is used to eliminate the redundant parameters of the error model. To solve the problem that traditional optimization algorithms are easily affected by data noise in high dimension identification, a novel extended Kalman filter and regularized particle filter hybrid identification method is presented. EKF is used in the preidentification of the linearized error model. With the preidentification results as the initial parameters, RPF is used to identify the kinematic parameters of the linearized error model. Simulations are carried out to validate the effectiveness of the proposed method, which shows that the method can identify the error of the parameters and after compensation the accuracy of the robot is improved. (shrink)
Prudence in the Twenty-First Century.Robert Hariman & Liu -2007 -Modern Philosophy 1:63-73.detailsPrudence is in order to achieve sustainability of good behavior and political contingencies applicable to deal with the kind of intellectual. To prudence and the recent recovery of Modern arrogant different alternative, one should take into account the distinctive features is that it reflects how deeply the plight of human behavior. These characteristics of practical wisdom through the words to define the history, theory, practice, structure, quality and other aspects of the audience to identify, they in this magazine is divided (...) into two parts in the statement. This first section highlights the contingency, pluralism and practical these conditions, and through its specification, design consideration and implementation of these expressions to define the set of practical wisdom. Wise actors is such a person, he balanced a variety of incommensurability of good insight into the strategy of a variety of possible actions, and in a proper and timely manner with interactive collaboration with others. Prudence is the intelligence suited to managing contingency on behalf of good action and political sustainability. In order to recuperate prudence as an alternative to late-modern hubris, one should consider how its distinctive features reflect deep predicaments of human action. These features are identified through the history, theory, practice, structure, character, and audiences defining prudential discourse, and are set out in two installments in this journal. This first installment emphasizes conditions of contingency, plurality, and praxis, and defines prudence in terms of its normative, calculative, and performative articulations. The prudent actor is one who balances incommensurable goods, discerns probable courses of action, and interacts with others in an appropriate and timely manner. (shrink)
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When the Presidential Candidate Comes to Town: The Impact of Donald J. Trump’s Campaign Rallies on Local Firms’ Environmental and Social Performance.Feng Guo,Yonghong Liu,Mengmeng Wang &Yiyang Zhang -2023 -Journal of Business Ethics 186 (3):531-552.detailsThis study investigates how the explicitly anti-prosocial and anti-pro-environmental speech by political elites affects firms’ environmental and social (E&S) performance. Using the case of the Donald J. Trump (DJT) campaign for president in the United States when he gave out controversial and inflammatory remarks, including those regarding E&S issues, we find that local firms’ E&S performance decreased significantly in the year following DJT’s presidential campaign rally compared with firms in other geographic areas where there was no DJT’s presidential campaign event. (...) A further test indicates that the change in firms’ E&S performance can be driven by DJT remarks’ influence on local social norms shift. Furthermore, we show that the post-rally decrease of local firms’ E&S performance is more pronounced for local firms that operate primarily locally or local firms that are more sensitive to political uncertainty. Taken together, these findings indicate that political events such as political elites giving remarks can affect firms’ E&S performance. (shrink)
Second Language Experience Facilitates Sentence Recognition in Temporally-Modulated Noise for Non-native Listeners.Jingjing Guan,Xuetong Cao &Chang Liu -2021 -Frontiers in Psychology 12.detailsNon-native listeners deal with adverse listening conditions in their daily life much harder than native listeners. However, previous work in our laboratories found that native Chinese listeners with native English exposure may improve the use of temporal fluctuations of noise for English vowel identification. The purpose of this study was to investigate whether Chinese listeners can generalize the use of temporal cues for the English sentence recognition in noise. Institute of Electrical and Electronics Engineers sentence recognition in quiet condition, stationary (...) noise, and temporally-modulated noise were measured for native American English listeners, native Chinese listeners in the United States, and native Chinese listeners in China. Results showed that in general, EN listeners outperformed the two groups of CN listeners in quiet and noise, while CNU listeners had better scores of sentence recognition than CNC listeners. Moreover, the native English exposure helped CNU listeners use high-level linguistic cues more effectively and take more advantage of temporal fluctuations of noise to process English sentence in severely degraded listening conditions [i.e., the signal-to-noise ratio of −12 dB] than CNC listeners. These results suggest a significant effect of language experience on the auditory processing of both speech and noise. (shrink)
Burnout Among Medical Staff 1 Year After the Beginning of the Major Public Health Emergency in Wuhan, China.Wenning Fu,Yifang Liu,Keke Zhang,Pu Zhang,Jun Zhang,Fang Peng,Xue Bai,Jing Mao &Li Zou -2022 -Frontiers in Psychology 13.detailsObjectivesWuhan is the city where coronavirus disease was first reported and developed into a pandemic. However, the impact of the prolonged COVID-19 pandemic on medical staff burnout remains limited. We aimed to identify the prevalence and major determinants of burnout among medical staff 1 year after the beginning of the COVID-19 pandemic in Wuhan, China.Materials and MethodsA total of 1,602 medical staff from three hospitals in Wuhan, China, were included from November 1–28, 2021. Chi-square tests were conducted to compare the (...) prevalence of burnout across groups based on sociodemographic and professional characteristics. A multivariate analysis was performed using a forward stepwise logistic regression model.ResultsApproximately 37.39% of the medical staff experienced burnout 1 year after COVID-19 pandemic. Emotional exhaustion was the most common symptom of burnout, with 1,422 participants reporting a severe EE. Burnout was associated with insufficient social support and “neutral” or “dissatisfied” patient-physician relationships. Respondents who participated in the care of COVID-19 patients had a higher risk of burnout symptoms than those who did not participate. In particular, mental resilience was negatively associated with burnout among the medical staff.ConclusionNearly two-fifths of the participants had symptoms of burnout, with reduced personal accomplishment being the predominant symptom 1 year after COVID-19. Healthcare organizations should regularly measure and monitor burnout among the medical staff. In addition, creating positive work environments and improving the mental resilience of medical staff may be effective ways to reduce burnout. (shrink)
An Evaluation Study on Investment Efficiency: A Predictive Machine Learning Approach.Weiwei Hao,Hongyan Gao &Zongqing Liu -2021 -Complexity 2021:1-9.detailsThis paper proposes a nonlinear autoregressive neural network method for the investment performance evaluation of state-owned enterprises. It is different from the traditional method based on machine learning, such as linear regression, structural equation, clustering, and principal component analysis; this paper uses a regression prediction method to analyze investment efficiency. In this paper, we firstly analyze the relationship between diversified ownership reform, corporate debt leverage, and the investment efficiency of state-owned enterprises. Secondly, a set of investment efficiency evaluation index system (...) for SOE was constructed, and a nonlinear autoregressive neural network approach was used for verification. The data of A-share state-owned listed companies in Shanghai and Shenzhen stock exchanges from 2009 to 2018 are taken as a sample. The experimental results show that the output value from the NARNET is highly fitted to the actual data. Based on the neural network model regression analysis, this paper conducts a descriptive statistical analysis of the main variables and control variables of the evaluation indicators. It verifies the direct impact of diversified ownership reform on the investment efficiency of SOE and the indirect impact on the investment efficiency of SOE through corporate debt leverage. (shrink)
From Good to Better: Using Contextual Shifts to Define Preference in Terms of Monadic Value.Sven Ove Hansson &Fenrong Liu -2014 - In Alexandru Baltag & Sonja Smets,Johan van Benthem on Logic and Information Dynamics. Cham: Springer.detailsIt has usually been assumed that monadic value notions can be defined in terms of dyadic value notions, whereas definitions in the opposite direction are not possible. In this paper, inspired by van Benthem’s work, it is shown that the latter direction is feasible with a method in which shifts in context have a crucial role. But although dyadic preference orderings can be defined from context-indexed monadic notions, the monadic notions cannot be regained from the preference relation that they gave (...) rise to. Two formal languages are proposed in which reasoning about context can be represented in a fairly general way. One of these is a modal language much inspired by van Benthem’s work. Throughout the paper the focus is on relationships among the value notions “good”, “bad”, and “better”. Other interpretations like “tall” and “taller” are equally natural. It is hoped that the results of this paper can be relevant for the analysis of natural language comparatives and of vague predicates in general. (shrink)
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The Predictive Values of Changes in Local and Remote Brain Functional Connectivity in Primary Angle-Closure Glaucoma Patients According to Support Vector Machine Analysis.Qiang Fu,Hui Liu &Yu Lin Zhong -2022 -Frontiers in Human Neuroscience 16.detailsPurposeThe primary angle-closure glaucoma is an irreversible blinding eye disease in the world. Previous neuroimaging studies demonstrated that PACG patients were associated with cerebral changes. However, the effect of optic atrophy on local and remote brain functional connectivity in PACG patients remains unknown.Materials and MethodsIn total, 23 patients with PACG and 23 well-matched Health Controls were enrolled in our study and underwent resting-state functional magnetic resonance imaging scanning. The regional homogeneity method and functional connectivity method were used to evaluate the (...) local and remote brain functional connectivity. Moreover, support vector machine method was applied to constructing PACG classification model.ResultsCompared with the HC, PACG patients showed increased ReHo values in right cerebellum _8, left CER_4-5, and right CER_8. In contrast, PACG patients showed decreased ReHo values in the bilateral lingual gyrus /calcarine /superior occipital gyrus and right postcentral gyrus. The ReHo value exhibited an accuracy of 91.30% and area under curve of 0.95 for distinguishing the PACG patients from HC.ConclusionOur study demonstrated that the PACG patients showed abnormal ReHo value in the cerebellum, visual cortex, and supplementary motor area, which might be reflect the neurological mechanisms underlying vision loss and eye pain in PACG patients. Moreover, the ReHo values can be used as a useful biomarker for distinguishing the PACG patients from HCs. (shrink)
Is Abusive Supervision the Last Straw? The Buffering Role of Construal Level in the Association of Abusive Supervision With Withdrawal.Riguang Gao &Bo Liu -2022 -Frontiers in Psychology 13.detailsDrawing on the theory of cognitive-affective processing system and that of construal level, we propose a moderated mediation model illustrating the relationship among abusive supervision, shame, construal level, and work withdrawal. We tested this model with a two-source time-lagged survey of 387 employees from 129 work teams in central and East China. Results revealed that abusive supervision had a positive association with the emotion of shame and supported the mediating role of shame linking abusive supervision to work withdrawal. Besides, our (...) findings supported the buffering effect of construal level on the shame-work withdrawal relationship as well as the indirect relationship between abusive supervision and work withdrawal channeled through the emotion of shame. (shrink)
Graduate Students’ Perceived Supervisor Support and Innovative Behavior in Research: The Mediation Effect of Creative Self-Efficacy.Jiying Han,Nannan Liu &Feifei Wang -2022 -Frontiers in Psychology 13.detailsWith increased global competition and the advent of the knowledge economy, developing graduate students’ ability to innovate in their research has become a core focus of graduate education. Graduate students’ perceived help and assistance from supervisors is one of the key resources for research innovation. This study explored the relationships between graduate students’ perceived supervisor support and their innovative behavior in research, and examined the mediation effect of creative self-efficacy, their confidence in abilities to generate creative ideas or produce creative (...) outcomes. Survey data were collected from a sample of 996 Chinese graduate students. The results revealed that academic support was negatively related to idea generation and idea search; personal support was positively related to overcoming obstacles; autonomy support was positively related to all factors of innovative behavior except overcoming obstacles and innovation outputs. The mediation analysis suggested that creative self-efficacy significantly mediated the relationship between academic support and graduate students’ innovative behavior in research. The results of this study highlight the significance of both supervisor support and creative self-efficacy in developing graduate students’ research innovation. The findings have significant implications for stimulating students’ research innovation and for improving the quality of graduate education. (shrink)
Group Abnormal Behaviour Detection Algorithm Based on Global Optical Flow.Yu Hao,Ying Liu,Jiulun Fan &Zhijie Xu -2021 -Complexity 2021:1-12.detailsAbnormal behaviour detection algorithm needs to conduct behaviour analysis on the basis of continuous video inclination tracking, and the robustness of the algorithm is reduced for the occlusion of moving targets, the occlusion of the environment, and the movement of targets with the same colour. For this reason, the optical flow information between RGB images and video frames is used as the input of the network in view of group behaviour. Then, the direction, velocity, acceleration, and energy of the crowd (...) were weighted and fused into a global optical flow descriptor. At the same time, the crowd trajectory map is extracted from the original image of a single frame. Following, in order to realize the detection of large displacement moving target and solve the problem that the traditional optical flow algorithm is only suitable for the detection of displacement moving target, a video abnormal behaviour detection algorithm based on the double-flow convolutional neural network is proposed. The network uses two network branches to learn spatial dimension information and temporal dimension information, respectively, and uses short- and long-time neural network to model the dependency relationship between long-time video frames, so as to obtain the final behaviour classification results. Simulation test results show that the proposed method can achieve good recognition effect on multiple datasets, and the performance of abnormal behaviour detection can be significantly improved by using interframe motion information. (shrink)
Common Predictive Factors of Social Media Addiction and Eating Disorder Symptoms in Female College Students: State Anxiety and the Mediating Role of Cognitive Flexibility/Sustained Attention.Zhonghua He,Mingde Li,Chanjun Liu &Xiaoyue Ma -2022 -Frontiers in Psychology 12.detailsThis study aimed to investigate the common predictive factors between social media addiction and eating disorder symptoms, in a group of Chinese female college students. A total of 216 students completed the behavioral assessments of cognitive flexibility and sustained attention, as well as the questionnaires on anxiety, social media dependence, and eating disorders. The results indicate that SMA is significantly correlated with EDS. Structural equation modeling was used to test the model in which state anxiety, cognitive flexibility, and sustained attention (...) predicted social gain and EDS. Additionally, the results confirmed the mediating role of cognitive flexibility and sustained attention between state anxiety and SMA/EDS in the participants. The findings revealed that in the sample group, state anxiety was related to SMA and EDS through cognitive flexibility and sustained attention. These proposals reflect the significance of improving cognitive flexibility/sustained attention and reducing state anxiety to prevent EDS and SMA in female college students. (shrink)
Identification positively affects the creativity of family business: The mediating role of family business support.Jianjia He,Jusheng Liu,Tingting Li &Liangrong Song -2022 -Frontiers in Psychology 13.detailsWith the arbitrariness of family business decision-making and the complexity of interests become increasingly prominent, the transformation and innovation of family business are imminent. Under the above background, via analysis of data from 259 valid questionnaires from more than ten family businesses in China as a sample and with the help of the SPSS and AMOS, this study explored the impacts of identification on creativity of the family business as well as the mediating role of family business support by constructing (...) a mediating model. The results show that the employee’s identification has a positive impact on the creativity of the family business. Besides, identification has a positive impact on family business support and family business support has a partial mediating role between identification and family business creativity. Especially, the emotional support does not have a mediating role, whereas the instrumental support has a complete mediating role between identification and family business creativity. (shrink)
The Influence of Academic Independent Directors and Confucianism on Carbon Information Disclosure: Evidence from China.Ren He,Mingdian Zhou,Jing Liu &Qing Yang -2021 -Complexity 2021:1-14.detailsAs global warming has received widespread attention, the disclosure of firms’ carbon information has been expected by increasing stakeholders. This study extends the previous literature on the determinants of firms’ carbon information disclosure by examining the influence of academic independent directors and Confucianism on the quality of carbon information disclosure. Using a sample of Chinese listed firms in the CSI 300 Index during the period of 2012–2018, our empirical results show that academic independent directors have a significantly positive association with (...) the quality of carbon information disclosure. The results also reveal that Confucianism positively affects the quality of carbon information disclosure. Moreover, Confucianism positively moderates the relationship between academic independent directors and the quality of carbon information disclosure. The results imply that Confucianism, as an informal system, can promote the governance effect of academic independent directors on firms’ carbon information disclosure behaviour. Our findings offer shareholders, regulators, and other stakeholders an integrating perspective on motivating firms to disclose high quality carbon information. (shrink)
Hui Shi's Monism: A Russellian Interpretation.Liu Jingxian &Li Mao -2020 -Philosophy East and West 70 (3):781-800.detailsA dilemma in interpreting Hui Shi's ten theses is that they are understandable only in the light of relativistic pluralism, which conflicts with his own main theme of absolutistic monism. However, after a careful investigation of the evolutionary paths of the tense and aspect uses of the temporal adverb fang 方 in classical Chinese language, a construction argument can be made for fang sheng fang si 方 生 方 死. But before presenting this construction argument, we first introduce the dilemma (...) in interpreting the ten theses.Hui Shi's ten theses are listed as follows: 1The ultimately great has no outside, call it the Great One. The ultimately small has no inside, call it the Small One. 2The dimensionless cannot be... (shrink)
Pain and spatial inclusion: evidence from Mandarin.Michelle Liu &Colin Klein -2020 -Analysis 80 (2):262-272.detailsThe surface grammar of reports such as ‘I have a pain in my leg’ suggests that pains are objects which are spatially located in parts of the body. We show that the parallel construction is not available in Mandarin. Further, four philosophically important grammatical features of such reports cannot be reproduced. This suggests that arguments and puzzles surrounding such reports may be tracking artefacts of English, rather than philosophically significant features of the world.
The evolution and spread of the image of "Nagas Bathing Siddhartha" in Buddhism Art.Xiaodan Liu,Huiwen Xia,Tao Ma &Qi Dang -2023 -Trans/Form/Ação 46 (spe):263-284.detailsRésumé: L’image du “Dragon baignant le prince” est un thème important dans l’art bouddhique. L’image est née en Inde, et pendant le processus de propagation du bouddhisme vers l’est, elle est apparue dans le Xinjiang, le Gansu, le Qinghai, le Shanxi, le Shaanxi, le Henan, le Shandong, le Jiangsu, le Sichuan, le Tibet et d’autres endroits en Chine. Cependant, la forme et le contenu de ces images sont différents selon les régions et les périodes. L’étude de cette différence est non (...) seulement propice à la compréhension du processus de sinisation de l’art bouddhiste indien, mais approfondit également la compréhension du contenu spécifique de l’échange de l’art bouddhiste l’art entre la Chine et l’Inde. (shrink)