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This study aimed to analyze the mediating effect of tolerance of uncertainty and trait anxiety on future self-continuity and intention to use Internet wealth management systems. A questionnaire survey was distributed online and a total of 388 participants completed questionnaire, The questionnaire included the following scales: Chinese version of the FSC, Intention to Use the Internet Wealth Management, TU, and TA. Pearson correlation was used to investigate the correlation coefficient between variables while the sequential regression method was used to analyze (...) relationship between variables. To analyze the collected data, the SPSS 26.0 was used. A two-step procedure was applied to analyze the mediation effect. Confirmatory factor analysis was conducted to test the measurement model. Afterward, the Maximum Likelihood method was used for path analysis, and the Bias-corrected Bootstrap method was used to investigate determine the estimated value and confidence interval of the mediating effect. To analyze the mediation effect, the Mplus 7.0 was used. The results showed that FSC positively predicted individuals’ Internet wealth management systems. Furthermore, TU and TA played complete serial multiple mediating roles between FSC and IUIWM. The role of TA and TU have negative impact on intention to use. This study provides a theoretical basis in personality psychology that Internet financial product suppliers can use to improve the attractiveness of their products. Product managers can subdivide users according to these personality traits to provide customized products. (shrink)

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Improvements of the happiness of the rural population are an essential sign of the effectiveness of relative poverty governance. In the context of today’s digital economy, assessing the relationship between digital literacy and the subjective happiness of rural low-income groups is of great practicality. Based on data from China Family Panel Studies, the effect of digital literacy on the subjective well-being of rural low-income groups was empirically tested. A significant happiness effect of digital literacy on rural low-income groups was found. (...) Digital literacy promotes the subjective happiness of rural low-income groups through income increase and consumption growth effects. The observed happiness effect is heterogeneous among different characteristic groups, and digital literacy significantly positively impacts the subjective happiness of rural low-income groups. Decomposition of subjective happiness into life satisfaction and job satisfaction shows that digital literacy significantly positively affects the job and life satisfaction of rural low-income groups. This paper demonstrates that digital literacy induces a practical happiness effect. To further strengthen the subjective welfare effect of digital literacy in the construction of digital villages, the government should focus on cultivating digital literacy among low-income groups from the demand side. The construction of digital infrastructure should be actively promoted from the supply side. (shrink)

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The generalized Brans–Dicke theory (GBD), as one of the modified gravitational theories, was proposed previously and some interesting properties were found in this theory. Here we investigate the traversable-wormhole physics for GBD theory. Firstly, we derive the gravitational field equation in the framework of GBD wormhole geometry. The traversable wormhole could be gained in this theory. Secondly, using the classical reconstruction technique we originally derive an Lagrangian function for describing gravity in GBD theory. And the derived Lagrangian function for gravity (...) could be satisfied with the requirement of the viable conditions, such as the local gravity tests and the cosmological constraints, etc. Thus, the viable model for cosmology, local gravity and traversable WH can be unified in a uniform Lagrangian quantity within the framework of GBD theory. Thirdly, given that the violation of the energy conditions (ECs) often induce some problems in theory, we explore the ECs of matter in the traversable wormhole. It is shown that the null EC, the weak EC and the dominated EC for the matter can be satisfied in the traversable-wormhole physics of GBD theory, which are different from the results given in GR. It seems that the theory of GBD owns the more logic technically and consistency formally than the theory of GR. Fourthly, some other properties of GBD traversable WH are explored, such as the total gravitational energy, the volume integral quantifier, the dynamical stability of the anisotropic matter, and the difference of the propagation of sound within the matter configuration. The results support the GBD to provide an interesting candidate for traversable WH. (shrink)

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The main purpose of this study is to probe into the human capacity of understanding systems and defects in human knowledge of the world. The study addresses the greyness levels and systems levels and explains why the world cannot be perceived as a purely white or black structure. It also clarifies why human knowledge of systems always remains grey. The investigation relies on logical and deductive reasoning and uses the theoretical foundations of systems thinking and Boulding’s systems hierarchy. The most (...) important argument that this study advances is that human knowledge, in any form or under any circumstances, is grey and incomplete and will remain grey. Because the notion of “perfect knowledge” is ambiguous given human epistemic limits, any proportion of knowledge is incomplete and prone to change. Less complexity could lead to more accurate predications, but even in the simplest forms of systems, reaching perfect knowledge seems to be an unwarranted claim. Furthermore, because our perception of past events is incomplete, we cannot predict the future with certainty, as a result of which both the past and the future appear grey to us. The world, as an integrated system, is neither black nor white, but it remains grey, and the systems partially recognized by humans are part of the grey world. Gaining knowledge and increasing discoveries only contribute to the grey systems that are already known. (shrink)

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Non‐coding centromeres, which dictate kinetochore formation for proper chromosome segregation, are extremely divergent in DNA sequences across species but are under active transcription carried out by RNA polymerase (RNAP) II. The RNAP II‐mediated centromeric transcription has been shown to facilitate the deposition of the centromere protein A (CENP‐A) to centromeres, establishing a conserved and critical role of centromeric transcription in centromere maintenance. Our recent work revealed another role of centromeric transcription in chromosome segregation: maintaining centromeric cohesion during mitosis. Interestingly, this (...) role appears to be fulfilled through ongoing centromeric transcription rather than centromeric transcripts. In addition, we found that centromeric transcription may not require some of the traditional transcription initiation factors, suggestive of “uniqueness” in its regulation. In this review, we discuss the novel role and regulation of centromeric transcription as well as the potential underlying mechanisms. (shrink)

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The fault prediction and abductive fault diagnosis of three-phase induction motors are of great importance for improving their working safety, reliability, and economy; however, it is difficult to succeed in solving these issues. This paper proposes a fault analysis method of motors based on modified fuzzy reasoning spiking neural P systems with real numbers for fault prediction and abductive fault diagnosis. To achieve this goal, fault fuzzy production rules of three-phase induction motors are first proposed. Then, the rMFRSNPS is presented (...) to model the rules, which provides an intuitive way for modelling the motors. Moreover, to realize the parallel data computing and information reasoning in the fault prediction and diagnosis process, three reasoning algorithms for the rMFRSNPS are proposed: the pulse value reasoning algorithm, the forward fault prediction reasoning algorithm, and the backward abductive fault diagnosis reasoning algorithm. Finally, some case studies are given, in order to verify the feasibility and effectiveness of the proposed method. (shrink)

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BackgroundPatient-centred care and patient autonomy is one of the key factors to better quality of service provision, hence patient outcomes. It enables the development of patients’ trusts which is an important element to a better doctor-patient relationship. Given the increasing number of patient disputes and conflicts between patients and doctors in Chinese public hospital, it is timely to ensure patient-centred care is fully and successfully implemented. However, limited studies have examined the views and practice in different aspects of patient-centred care (...) among doctors in the Chinese public hospitals.MethodsA quantitative approach was adopted by distributing paper-based questionnaires to doctors and patients in two hospitals (Level III and Level II) in Jinan, Shandong province, China.ResultsIn total, 614 doctors from the surgical and internal medicine units of the two hospitals participated in the survey yielding 90% response rates. The study confirmed the inconsistent views among doctors in terms of their perception and practice in various aspects patient-centred care and patient autonomy regardless of the hospital where they work (category II or category III), their unit speciality (surgical or non-surgical), their gender or seniority. The high proportion of doctors (more than 20%) who did not perceive the importance of patient consultation prior to determining diagnostic and treatment procedure is alarming. This in in part due to the belief held by more than half of the doctors that patients were unable to make rational decisions and their involvement in treatment planning process did not necessarily lead to better treatment outcomes.ConclusionThe study calls for the development of system level policy and organisation wide strategies in encouraging and enabling the practice of patient-centred care and patient autonomy with the purposes of improving the quality of the service provided to patients by Chinese hospitals. (shrink)

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We conjecture that corporate social responsibility can be indicative of managerial ethics and integrity and examine whether equity investors and financial analysts consider CSR performance when they assess firms’ disclosures of actual and forecasted earnings. We find that only adverse CSR performance affects investors’ assessments of these disclosures. In contrast, we find that both positive and adverse CSR performance affect analysts’ forecast revisions in response to firms’ disclosures. We also find that firms with adverse CSR performance exhibit lower disclosure quality (...) and earnings persistence, but do not find that firms with positive CSR performance exhibit higher levels of both measures. This asymmetric result is consistent with investors’, but not analysts’, assessments of the effect of CSR performance on corporate disclosures. Our results are robust to using a three-stage least squares approach to address endogeneity concerns and to a battery of robustness and sensitivity analyses. Overall, our findings suggest that investors and analysts consider CSR when assessing the information in earnings-related corporate disclosures. (shrink)

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This article examines capacity development for collective action and institutional change through the implementation of Corporate Social Responsibility (CSR) initiatives. We integrate Hargrave and Van de Ven’s (2006, Academy of Management Review31(4), 864–888) Collective Action Model with capacity development literature to develop a framework that can be used to clarify the nature of CSR involvement in capacity development, help identify alternative CSR response options, consider expected impacts of these options on stakeholders, and highlight trade-offs across alternative CSR investments. Our framework (...) encompasses CSR program investments in the capacities of individuals, organizations, and collaborations, as also their impact on the larger enabling environment. We then use this framework to provide descriptive evidence of two implementations: (1) The PhD Project, whose mission is to increase the diversity of corporate America by increasing the diversity of business school faculty, and (2) Involve, the community involvement program at KPMG, one of the Big Four Accounting firms. We discuss implications of our framework for managerial practice and future research. (shrink)

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'I never can catch myself at any time without a perception, and never can observe any thing but the perception.' These famous words of David Hume, on his inability to perceive the self, set the stage for JeeLoo Liu and John Perry's collection of essays on self-awareness and self-knowledge. This volume connects recent scientific studies on consciousness with the traditional issues about the self explored by Descartes, Locke and Hume. Experts in the field offer contrasting perspectives on matters such as (...) the relation between consciousness and self-awareness, the notion of personhood and the epistemic access to one's own thoughts, desires or attitudes. The volume will be of interest to philosophers, psychologists, neuroscientists, cognitive scientists and others working on the central topics of consciousness and the self. (shrink)

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There is a problematic dichotomy of nature/power in Western ecological politics. In this article, we try to argue for a new type of ecological politics, based on Chinese Taoism, especially the idea of Zhuangzi, that can integrate humanity, nature, and power. Zhuangzi’s idea of “play with nature” constitutes a new kind of play-style view of nature. This view not only emphasizes the freedom and pleasure in everyday human practices with nature, but also proposes a way to deconstruct the rigid authority, (...) symbolism, and ideology surrounding these practices. It thereby opens up an ecological politics with a play-style position, which can break down the mind’s fixations that are disciplined by power, of encountering situations as they emerge, and living with nature in a sincere and joyful manner. (shrink)

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Science motivational beliefs are crucial for STEM (science, technology, engineering, and math) performance and persistence, but these beliefs typically decline during high school. We expanded the literature on adolescents’ science motivational beliefs by examining: 1) changes in motivational beliefs in three specific science subjects, 2) how gender, immigrant generation status, and perceived support from key social agents predicted differences in adolescents’ science motivational beliefs, and 3) these processes among Latino/as in the United States, whose underrepresentation in STEM is understudied. We (...) used hierarchical linear modeling to estimate the changes in 104 (40% female) Latino/a high school students’ physics, chemistry, and biology motivational beliefs from 9th to 11th grade. Subject-specific ability self-concept, interest, and utility were regressed on gender, immigrant generation status, and perceived science support while controlling for family income, parent education, and adolescents’ school. Adolescents’ utility declined from 9th to 11th grade whereas their interest remained stable for all three science subjects. Adolescents’ ability self-concept increased for biology, decreased for physics, but remained stable for chemistry. Gender differences in adolescents’ motivational beliefs at 9th grade only emerged for physics utility as well as physics and chemistry interest; yet, there were no gender differences in how adolescents’ science motivational beliefs changed over time. Contrary to expectations, immigrant generation status was not significantly associated with adolescents’ science motivational beliefs at 9th grade or in terms of how they changed over time. Adolescents who perceived higher science support generally had higher motivational beliefs in 9th grade, but did not differ on their rate of change. Our findings highlight the need to examine specific science subjects, and that typical gender differences in adolescents’ motivational beliefs discussed in the literature may not generalize to all racial and ethnic groups. (shrink)

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The year 2012 has witnessed worldwide celebrations of Alan Turing’s 100th birthday. A great number of conferences and workshops were organized by logicians, computer scientists and researchers in AI, showing the continued flourishing of computer science, and the fruitful interfaces between logic and computer science. Logic is no longer just the concept that Frege had about one hundred years ago, let alone that of Aristotle twenty centuries before. One of the prominent features of contemporary logic is its interdisciplinary character, connecting (...) across mathematics, philosophy, modern computer science, and even the cognitive and social sciences. -/- China is no exception. This special issue explores interfaces of logic with AI and other disciplines, and it attempts to give a bird’s eye view of the developing landscape of logic and AI in China. Our contributors come from computer science, AI, philosophy and linguistics, united by their interest in using formal logical tools and notions to deal with substantial problems in their fields. We are aware that AI is a vast area, and that the limitations of space in a volume like this may provide a somewhat incomplete or biased view. Still we hope that the six papers selected here illustrate the concerns and curiosity driving Chinese researchers, on topics shared with our colleagues around the world. -/- One of the active research areas in AI is planning under uncertainty, with incomplete knowledge, where a well-established logical framework is the action language of Son and Baral (Son and Baral 2001). This language can express the notions of sensing actions and making conditional plans. However, its current semantics is not yet satisfactory, since according to the semantics an agent would not have knowledge of what happens after a plan is executed, which can be a serious problem in a safety-critical environment. In their paper Proof Systems for Planning under Cautious Semantics (Shen and Zhao 2013), Yuping Shen and Xishun Zhao address this problem and propose a cautious and weakly cautious semantics for the action language. This new semantics enables the agent to know exactly what happens after executing an action. Hoare style proof systems are then proposed and proved to be sound and complete. What is more, the proposed new system reduces the reasoning complexity of the action language. -/- In Preferential Semantics for Plausible Subsumption in Possibility Theory (Qi and Zhang 2013), Guilin Qi and Zhizheng Zhang investigate another important issue in AI: how to handle exceptions in a knowledge-based system. This has become a hot topic in recent years, especially in ontological design, where description logics are widely used. The question then arises whether we can get a nonmonotonic extension of description logic. To answer this, the authors first propose three preferential semantics for plausible subsumption in the framework of possibility theory (Dubois and Prade 1985) and study their properties and their relationships. Then they introduce preferential subsumptions to a description logic-based knowledge system, and define an entailment relation of plausible subsumption. Moreover, they study reductions of the new semantics to standard semantics for an expressive description logic. -/- Counterfactual reasoning has been explored extensively by philosophers, cf. Lewis (1973), Stalnaker (1968). But in the last two decades, causal models have been proposed for modeling counterfactual reasoning by researchers in AI. In A Lewisian Logic of Causal Counterfactuals (Zhang 2013), Jiji Zhang studies classes of causal models and provides formal characterizations. In particular, a new logic system is proposed and proved complete for the class of ‘Lewisian models’ satisfying all the principles of David Lewis’s logic of counterfactuals. Moreover, Zhang compares his new framework with those of Lewis and Stalnaker, and also establishes formal connections with more recent approaches by Galles and Pearl, and by Halpern. -/- Consistency is a fundamental notion in logic, but it also plays a key role in many techniques for solving constraint satisfaction problems (Mackworth 1977). In Variable-Centered Consistency in Model RB (Li et al. 2013), Liang Li, Tian Liu and Ke Xu start with a discussion of i-consistency in ‘Model RB’ and ‘Model RD’, two models of random constraint satisfaction problems with growing domain size, then compare it with the notion of t-consistency and strong t-consistency in well-known earlier work by Freuder. After that, the authors define a new kind of variable-centered consistency, and show an upper bound on a suitably chosen parameter in Model RB and Model RD, such that up to this bound, all typical instances of Model RB are variable-centered consistent. -/- Language understanding is a cognitive process that human beings carry out every day. Metaphor is a pervasive phenomenon in natural languages, and its cognitive role calls for interpretation. There is a growing body of literature on cognitive mechanisms underlying metaphor. The paper An Ontology-Based Approach to Metaphor Cognitive Computation (Huang et al. 2013) by Xiaoxi Huang, Huaxin Huang, Beishui Liao, and Cihua Xu proposes a theoretical framework for metaphor understanding based on recent results from cognitive science (Shutova 2010). They then introduce ontology as a knowledge representation method, and present a new ontological model to formalize metaphor-based knowledge. An algorithmic description is provided using a quantitative measure of integrated degree, and its effectiveness is demonstrated. -/- Puzzles and their solution mechanisms are a recurrent theme in many fields. Dynamic epistemic logic (van Ditmarsch et al. 2007); (van Benthem 2011) is a recent framework that can handle information dynamics in knowledge puzzles. In Reasoning About Agent Types and the Hardest Logic Puzzle Ever (Liu and Wang 2013), Fenrong Liu and Yanjing Wang propose a new dynamic-epistemic logic that can specify different types of agents and analyse agents’ knowledge, communication and reasoning. To demonstrate its power, Smullyan’s well-known Knights and Knaves puzzles are formalized, as well as the Hardest Logic Puzzle Ever (HLPE) of Boolos (Boolos 1996). Moreover, a spectrum of new puzzles is found involving knowledge-based agent types, and their solution complexity is shown to be harder than that for existing logic puzzles. It is also shown that a version of HLPE in which the agents do not know the others’ types does not have a solution at all. -/- Finally, we would like to thank the editor of Minds and Machines, Gregory Wheeler, for his efficient assistance and kind support. We also thank Ties Nijssen at Springer for his encouragement to start this project at the first place. And of course, our appreciation goes to our authors, as well as all the colleagues who have helped us review the papers in this collection. (shrink)

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I would describe myself as an accidental humanist, if not atheist. That was very much how I felt when I found myself on June 4, 2010, standing at the podium of the sixty-ninth annual conference of the American Humanist Association. I was receiving the Humanist Pioneer Award. But what did I do to deserve the honor? The golden letters on the beautifully crafted award said: “To Wendy Liu for her pioneering work that advances Humanist values and critical thought through cross (...) cultural perspectives on American Society.” The “pioneering work” presumably meant my writings on US-China relatedtopics, especially the collection of essays on my understanding of America from a Chinese and non-religious angle. As an aspiring writer, I was happy to be recognized for anything, not to say that particular angle. But that angle, with which I stumbled my way to the San Jose conference, was not an accident. It had come a long way with me on a journey starting in Xian, China, my hometown. Talking about Xian, the terracotta warriors of Qin Shihuang, the first Emperor of China, would probably come to one’s mind. Visitors have marveled at the work of ancient artisans, especially the rendering of individual facial features of the clay soldiers in eternity. In contrast to that humanistic touch was the cruelty of Emperor Qin, who ordered that upon his death the entrance to the underground mausoleum be sealed on completion, entombing the laborers inside to keep it secret.1 This is a brief but telling picture of humanism vs. tyranny in China–the once-upon-a time China. (shrink)

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In lieu of an abstract, here is a brief excerpt of the content:Diacritics 29.4 (1999) 150-177 [Access article in PDF] The Desire for the Sovereign and the Logic of Reciprocity in the Family of Nations Lydia H. Liu It may sound like a truism that the modern nation cannot imagine itself except in sovereign terms. But what is this truism saying or, rather, withholding from us? When Benedict Anderson wrote his influential study of nationalism in 1983, he circumscribed the imagining (...) of the nation as "both inherently limited and sovereign" and relied on this basic understanding to explain the global transformation of dynastic empires into nation-states [Imagined Communities 6]. That insight, however, has not drawn to itself as much attention or scrutiny as some of his other concepts, like "print capitalism" or "creole nationalisms." If one were to name a few of the blind spots in the contemporary discussions of nationalism, cosmopolitanism, and diaspora, one of them would be the place and placing of sovereignty and sovereign right. To those of us whose initial purpose has been to historicize the nation and nationalism, this blind spot cannot but raise some serious methodological and interpretive questions. Insofar as sovereignty articulates a major mode of exchange between nation and empire in recent history and moreover figures prominently in the realm of what Anderson calls "quotidian universals" [Spectre of Comparisons 33], the truism of its truth needs to be unpacked carefully.Hence, I would like to raise some tentative questions about desire and sovereignty, not in terms of legal studies, but in light of what we have learned about colonial exchange and its production of difference, fetishism, identity, and the logic of reciprocity. I am going to show that these intellectual and material developments have had significant bearings on the making of international law such that our inquiry into the latter can no longer be confined to the self-explanatory evolution of legal discourse. For sovereign thinking is one of those areas that must be reexamined, to borrow Edward Said's words, "according to a detailed logic governed not simply by empirical reality but by a battery of desires, repressions, investments, and projections" [18].In this essay, I begin with a critical analysis of Benedict Anderson's work, focusing on the interplay of the historical and the universal in his study of the nation. I am particularly interested in examining what Anderson chose to do, or not to do, with sovereignty in his theory of nationalism, and I raise some questions about his idea of the "modular," whereby the universal takes on the role of a migrant figure making histories [End Page 150] here and there. Section two introduces the subject of fetishism and desire into the discussion by linking the display of the thrones of the Emperor Qianlong in British museums to significant moments of sovereign thinking in the reign of Queen Victoria and the Empress Dowager of China at the turn of the century. In section three, I attempt a detailed discussion of the sovereignty complex of Ku Hung-ming, a diasporic subject who grew up in colonial Malaysia, was educated in Europe, and ended up serving China as his adopted sovereign country. My analysis centers on Ku's well-known defense of the Empress Dowager during the popular nationalist uprising of 1900 and his work as a translator and publicist in Anglo-Chinese military confrontations. Finally, I turn to the theories of international law itself and ask how nineteenth-century jurists revised the notion of sovereignty to arrive at a new constitutive theory of recognition in the heyday of imperialist expansion. I argue that any attempt to explain the rise of the modern nation-state must take full account of this significant revision in the early nineteenth century, because the revision signaled a paradigmatic shift from natural law to positivist jurisprudence to the effect that a constitutive understanding of sovereign right would eventually overcome and displace the natural law notion of universal sovereignty. Sovereign Thinking in Migrant Nationalisms In Imagined Communities, Anderson pointed to sovereignty as a necessary condition in thinking about the nation when, for example, he... (shrink)

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This dissertation is highly motivated by d.r.e. Nondensity Theorem, which is interesting in two perspectives. One is that it contrasts Sacks Density Theorem, and hence shows that the structures of r.e. degrees and d.r.e. degrees are different. The other is to investigate what other properties a maximal degree can have.In Chapter 1, we briefly review the backgrounds of Recursion Theory which motivate the topics of this dissertation.In Chapter 2, we introduce the notion of $$ -cupping degree. It is closely related (...) to the notion of maximal d.r.e. degree. In fact, a $$ -cupping degree is maximal d.r.e. degree. We then prove that there exists an isolated $$ -cupping degree by combining strategies for maximality and isolation with some efforts.Chapter 3 is part of a joint project with Steffen Lempp, Yiqun Liu, Keng Meng Ng, Cheng Peng, and Guohua Wu. In this chapter, we prove that any finite boolean algebra can be embedded into d.r.e. degrees as a final segment. We examine the proof of d.r.e. Nondensity Theorem and make developments to the technique to make it work for our theorem. The goal of the project is to see what lattice can be embedded into d.r.e. degrees as a final segment, as we observe that the technique has potential be developed further to produce other interesting results.prepared by Yong Liu.E-mail:[email protected]. (shrink)

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Of all the persisting civilizations in the world, Chinese civilization has endured the vicissitudes of history the longest without abrupt collapse. In the formation and development of Chinese civilization, China at some times experienced unity, strength, prosperity, and glory, and at other times experienced disunion, weakness, depression, and even humiliation. In its long continuous history, China has had a peculiar characteristic of recurrence in which an era of political strength and social prosperity would be superseded by an era of political (...) weakness and social chaos, and finally a lively new era would appear to continue the historical cycle. (shrink)

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In this paper, a robust H ∞ control problem of a class of linear parabolic distributed parameter systems with pointwise/piecewise control and pointwise/piecewise measurement has been investigated via the robust H ∞ feedback compensator design approach. A unified Lyapunov direct approach is proposed in consideration of the pointwise/piecewise control and point/piecewise measurement based on the distributions of the actuators and sensors. A new type of Luenberger observer is developed on the continuous interval of space domain to track the state of (...) the system, and an H ∞ performance constraint with prescribed H ∞ attenuation levels is proposed in this paper. By utilizing Lyapunov technique, mathematical inequalities, and integration theory, a sufficient condition based on LMI for the exponential stability of the corresponding closed-loop coupled system under an H ∞ performance constraint is presented. Finally, the effectiveness of the proposed design method is verified by numerical simulation results. (shrink)

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Firstly, the authors analyzed the properties of primary-onditionals and secondary-conditionals, establishthe minimum system $C2L_{m}$ of primary-conditionals and secondary-conditionals, and then prove some of the formal theorems of the system which have important intuitive meanings. Secondly, the authors constructed the neighborhood semantics, prove the soundness of $C2L_{m}$ , introduce a general concept of canonical model by the neighborhood semantics, and then prove the completeness of $C2L_{m}$ by the canonical model. Finally, according to the technical results of the minimum system $C2L_{m}$ , (...) the authors discuss some of the important problems concerning primary-conditionals and secondary- onditionals. (shrink)

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A survey was conducted on the advertising practitioners in Taiwan concerning their experiences of ethical challenges at work. Among 120 respondents, while 32.5 percent responded that ethical problems did not exist, 67.5 percent admitted that ethical problem was a commonplace at work. According to these respondents, the most frequently mentioned ethical problems area representing unethical products or services, the message of advertisements, agency-client relationship, the creditability of research, undertable rebate, and the quality of service. Suggestions for international advertising managers were (...) also provided by comparing the finding from the present study with earlier studies in the United States. However, due to its preliminary nature, the present study should be considered exploratory and descriptive rather than conclusive, with the hope to inspire more research on advertising ethics in Taiwan as well as in other countries in the world. (shrink)

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This article studies the existence of positive periodic solutions for a class of strongly coupled differential systems. By applying the fixed point theory, several existence results are established. Our main findings generalize and complement those in the literature studies.

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The Tianqin, often a plucked zither or lute, holds significant cultural and musical heritage in China. The objective of this study is to explore the evolutionary perspectives on the culture of a Chinese folk musical instrument by examining its playing techniques and cultural changes. Conducted in Longzhou County, Guangxi Zhuang Autonomous Region, China, this study involved ethnographic fieldwork, including participant observation and interviews with key informants such as Tianqin musicians and craftsmen. Data analysis was performed using thematic analysis, revealing that (...) the Tianqin has transitioned from a ritualistic instrument to a symbol of cultural heritage and mass entertainment. The findings highlight the instrument's adaptability through innovations in playing techniques and materials, supported by governmental initiatives promoting Tianqin culture. This research underscores the importance of preserving and promoting traditional musical instruments in contemporary society. The study's insights contribute to a broader understanding of cultural adaptation and innovation in ethnomusicology. (shrink)

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Major events such as the COVID-19 pandemic, Olympic Games, and G20 Summit bring about supplier disruption risks and challenges to supply chain management. To help deal with these risks, a virtual dual-sourcing production-inventory system can be deployed. In this paper, we study such a system which consists of a raw material supplier, a manufacturer, and a virtual dual-sourcing contingency supplier. The manufacturer needs to determine the production, procurement, and inventory plan of raw materials. When its supplier is interrupted, the manufacturer (...) may need to adjust the production and inventory plan and work with the contingency supplier. We develop a system dynamics method to simulate the operations in this production-inventory system to identify the approximately optimal order-up-to-level inventory policies. We find that the virtual dual production-inventory strategy can be the optimal contingency policy to deal with supplier dynamic disruption risks. Furthermore, for disruption risk with low frequency and long duration, the manufacturer should increase the safety inventory level before the disruption. Otherwise, it should increase the safety inventory level in every cycle. (shrink)

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