Optimal shelflisting invites profit maximization to become sensitive to the ways in which purchasing decisions are order-dependent. We study the computational complexity of the corresponding product arrangement problem when consumers are either rational maximizers, use a satisficing procedure, or apply successive choice. The complexity results we report are shown to crucially depend on the size of the top cycle in consumers’ preferences over products and on the direction in which alternatives on the shelf are encountered.

The relationships between age and the life-supporting treatments use, and between gender and the life-supporting treatments use are still controversial. Using extracorporeal membrane oxygenation as an example of life-supporting treatments, the objectives of this study were: to examine the relationship between age and the extracorporeal membrane oxygenation use; to examine the relationship between age and the extracorporeal membrane oxygenation use; and to deliberate the ethical and societal implications of age and gender disparities in the initiation of extracorporeal membrane oxygenation. This (...) is a population-based, retrospective cohort study. Taiwan’s extracorporeal membrane oxygenation cases from 2000 to 2010 were collected. The annual incidence rate of extracorporeal membrane oxygenation use adjusting for both age and gender distribution for each year from 2000 to 2010 was derived using the population of 2000 as the reference population. The trend of extracorporeal membrane oxygenation use was examined using time-series linear regression analysis. We conducted joinpoint regression for estimating the trend change of extracorporeal membrane oxygenation use. The trends of extracorporeal membrane oxygenation use both for different gender groups, and for different age groups have been significantly increasing over time. Men were more likely to be supported by extracorporeal membrane oxygenation than women. Women’s perspectives toward life and death, and women’s perception of well-being may be associated with the phenomenon. In addition, the patients at the age of 65 or older were more likely to be supported by extracorporeal membrane oxygenation than those younger than 65. Family autonomy/family-determination, and the Confucian tradition of filial piety and respecting elders may account for this phenomenon. This study showed gender and age disparities in the initiation of extracorporeal membrane oxygenation use in Taiwan, which may be accounted for by the cultural and societal values in Taiwan. For a healthcare professional who deals with patients’/family members’ medical decision-making to initiate life-supporting treatments, he/she should be sensitive not only to the legality, but also the societal and ethical issues involved. (shrink)

ABSTRACTReceiving favors is often a mixed blessing and commonly triggers two emotions: the positive emotion gratitude and negative emotion indebtedness. In three studies, we examined the hypothesis that gratitude and indebtedness have distinct functions in social exchange. Contrary to current views, we believe that the function of gratitude does not primarily reside in facilitating social exchange. Instead, we propose that indebtedness motivates people to repay favours received, and thus accounts for most of the prosocial effects commonly attributed to gratitude. On (...) the other hand consistent with current views, we believe that gratitude signals the potential for developing a relationship and fosters proximity seeking. Supporting these assumptions, in Study 1 we found that gratitude and indebtedness were associated with aspects of the favour that reflect the concern for relationship and the level of inequity. Studies 2 and 3 provided causal support for these relations, and revealed the unique associations... (shrink)

Dujiangyan irrigation system of more than 2000 years history is a symbol of originality of Chinese ancestors both in its conception and project mode. It is still working well and benefit Chengdu Plain nowadays while other comparable water conservancy projects of the same or later age have vanished and been forgotten. More than just a world-famous cultural heritage, it shows the harmonious relationship between man and nature. And it also reveals us how to solve problems in the era of economic (...) globalization, such as the constantly silt up of the dams, the exhaustion of the energy and the crisis of the deterioration of ecosystem. The inspirations it gives us range from technology to humanities, from economy to various aspects in social life. In a word, Dujiangyan irrigation system demonstrates the wisdom and creativity of Chinese people and has a universal significance despite the change of time and space. (shrink)

全书以灾异思想为切入点，以西汉经学灾异思想与思潮为中心，结合先秦至西汉间的时代背景与思想氛围，在细致考察与解读相关文本的基础上，对西汉经学灾异思想的观念来源与理论先导、创立过程与时代特色、理论形态与建 构方法，以及灾异思潮与现实政治的互动等问题，进行了全面深入的研究和探讨；对于经学灾异思想何以会在西汉建立、经学灾异思潮缘何会在西汉爆发、经学灾异论造成了怎样的历史影响，以及如何评价灾异论氛围中的西汉儒 学与儒生群体等问题，本书也进行了系统的反思，并提出了一系列见解。.

ObjectiveThe large-scale epidemic of Coronavirus Disease 2019 has triggered unprecedented physical and psychological stress on health professionals. This study aimed to investigate the prevalence and risk factors of burnout syndrome, and the relationship between burnout and depressive symptoms among frontline medical staff during the COVID-19 epidemic in China.MethodsA total of 606 frontline medical staff were recruited from 133 cities in China using a cross-sectional survey. The Maslach Burnout Inventory was used to assess the level of burnout. Depressive symptoms were assessed (...) by the Patient Health Questionnaire Depression.ResultsDuring the COVID-19 pandemic, 36.5% of the medical staff experienced burnout. Personal and work-related factors were independently associated with burnout, including age, family income, having physical diseases, daily working hours, and profession of nurse. The correlation coefficients between the scores of each burnout subscale and the scores of depressive symptoms were 0.57 for emotional exhaustion, 0.37 for cynicism, and −0.41 for professional efficacy.ConclusionsOur findings suggest that the prevalence rate of burnout is extremely high among medical staff during the COVID-19 pandemic, which is associated with other psychological disorders, such as depression. Psychological intervention for medical staff is urgently needed. Young and less experienced medical staff, especially nurses, should receive more attention when providing psychological assistance. (shrink)

周王室东迁以后，学术重心由王官逐渐移向民间，自老子、孔子、墨子以后，一时大思想家辈出，如孟子、庄子、荀子、韩非子等，皆能著书立说，而成一家之言，后世因称这些思想家为“先秦诸子”。先秦诸子的学说在中国思 想史上占有崇高地位，后世思想学派莫不渊源于此，诸子著作是了解中国古代社会政治、经济、文化的宝贵资料。本书对诸子思想进行了详细的分析，有很高的学术价值。.

Decision-making competence refers to the ability to make better decisions, as defined by decision-making principles posited by models of rational choice. The adult decision-making competence (A-DMC) scale is a relatively mature evaluation tool used for decision-making competence. However, the A-DMC is yet far from other mature psychological evaluation tools, and especially the structure of A-DMC remains unclear. In the current study, we estimated a regularized partial correlation network of decision-making competence in a Chinese sample consisting of 339 adults who were (...) evaluated by the A-DMC, and then the centrality indicators were calculated. The results revealed that all nodes of the decision-making competence networks are positively associated, except for the association of resistance to framing (RF) and resistance to sunk costs (SC). The strongest edge was between RF and applying decision rules (DR; regularized partial correlation = 0.37). The centrality indicators of RF and applying DR were highest, revealing that these two variables may play important roles in the decision-making competence network. Our study conceptualizes the decision-making competence from network perspectives, so as to provide some insights for future researches. (shrink)

In this paper, the fixed-time practical bipartite tracking problem for the networked robotic systems with parametric uncertainties, input disturbances, and directed signed graphs is investigated. A new fixed-time estimator-based control algorithm for the NRSs is presented to address the abovementioned problem. By applying a sliding surface and the time base generator approach, a new stability analysis method is proposed to achieve the fixed-time practical bipartite tracking for the NRSs. We also derive the upper bound of the convergence time for employing (...) the presented control algorithm to solve the practical bipartite tracking problem and further demonstrate that the convergence time is independent of the initial value. Finally, the simulation examples are given to verify the effectiveness of the presented algorithms. (shrink)

As part of a research project on confrontational maneuvering in the spokespersons’ argumentative replies at the regular press conferences of China’s Ministry of Foreign Affairs between 2015 and 2018, this article analyzes, within the framework of Pragma-Dialectics, how the spokespersons declare a standpoint at issue unallowed or indisputable in order to avoid having to resolve a difference of opinion as it is, according to the questioning journalist, presented by their immediate opponents. Starting from the various rationales the spokespersons presuppose to (...) be understood and regarded acceptable by the questioning journalist and the international general public, three subtypes of declaring a standpoint unallowed or indisputable are differentiated: the “Necessity Rationale” subtype, the “Desirability Rationale” subtype, and the “Feasibility Rationale” subtype. The confrontational maneuvering by declaring a standpoint unallowed or indisputable carried out by the spokespersons is directed both at the immediate opponent and at the international general public. However, it is the international general public that the spokespersons primarily intend to convince. For this purpose, they make in all three subtypes of the unallowed or indisputable declaration an effort to adapt their response to their primary audience’s demand by making strategic choices from the available topical potential and the available presentational devices. (shrink)

A human driver and an automated driving system might share control of automated vehicles in the near future. This raises many concerns associated with the assignment of responsibility for negative outcomes caused by them; one is that the human driver might be required to bear the brunt of moral and legal responsibilities. The psychological consequences of responsibility misattribution have not yet been examined. We designed a hypothetical crash similar to Uber’s 2018 fatal crash. We incorporated five legal responsibility attributions. Participants (...) chose their preferred liability attribution and then were randomly assigned into one of the five actual liability attribution conditions. They then responded to a series of questions concerning liability assignment, the crash, and AVs. Slightly more than 50% of participants thought that the human driver should bear full or primary liability. Legal responsibility misattribution negatively influenced these mentioned responses, regardless of overly attributing human or manufacturer liability. Overly attributing human liability had more negative influences. Improper liability attribution might hinder the adoption of AVs. Public opinion should not be ignored in developing a legal framework for AVs. (shrink)

In this thesis, we study Turing degrees in the context of classical recursion theory. What we are interested in is the partially ordered structures $\mathcal {D}_{\alpha }$ for ordinals $\alpha <\omega ^2$ and $\mathcal {D}_{a}$ for notations $a\in \mathcal {O}$ with $|a|_{o}\geq \omega ^2$.The dissertation is motivated by the $\Sigma _{1}$ -elementary substructure problem: Can one structure in the following structures $\mathcal {R}\subsetneqq \mathcal {D}_{2}\subsetneqq \dots \subsetneqq \mathcal {D}_{\omega }\subsetneqq \mathcal {D}_{\omega +1}\subsetneqq \dots \subsetneqq \mathcal {D}$ be a $\Sigma _{1}$ (...) -elementary substructure of another? For finite levels of the Ershov hierarchy, Cai, Shore, and Slaman [Journal of Mathematical Logic, vol. 12, p. 1250005] showed that $\mathcal {D}_{n}\npreceq _{1}\mathcal {D}_{m}$ for any $n < m$. We consider the problem for transfinite levels of the Ershov hierarchy and show that $\mathcal {D}_{\omega }\npreceq _{1}\mathcal {D}_{\omega +1}$. The techniques in Chapters 2 and 3 are motivated by two remarkable theorems, Sacks Density Theorem and the d.r.e. Nondensity Theorem.In Chapter 1, we first briefly review the background of the research areas involved in this thesis, and then review some basic definitions and classical theorems. We also summarize our results in Chapter 2 to Chapter 4. In Chapter 2, we show that for any $\omega $ -r.e. set D and r.e. set B with $D<_{T}B$, there is an $\omega +1$ -r.e. set A such that $D<_{T}A<_{T}B$. In Chapter 3, we show that for some notation a with $|a|_{o}=\omega ^{2}$, there is an incomplete $\omega +1$ -r.e. set A such that there are no a-r.e. sets U with $A<_{T}U<_{T}K$. In Chapter 4, we generalize above results to higher levels. We investigate Lachlan sets and minimal degrees on transfinite levels and show that for any notation a, there exists a $\Delta ^{0}_{2}$ -set A such that A is of minimal degree and $A\not \equiv _T U$ for all a-r.e. sets U.prepared by Cheng Peng.E-mail: [email protected]. (shrink)

Abstract:The most important themes of Wang Lü's painting theory are the "true self" and the "true thing." One reason this topic has not received sufficient attention is that the original text was altered. This article aims to correct and reinterpret the text. After textual research and interpretation, Wang Lü's paintings and painting theory have been reevaluated. This article also responds to some difficult topics such as the relationship between "form" (ᔶ) and "meaning" (ᛣ) and between "following" (ᕲ) and "not following" (...) (䘩) the rules in Chinese painting theory. (shrink)

It has been found in many cases that consumers are prone to exhibit impulsive buying behavior that is manifested as being immediate, emotional, and irresponsible especially under short video scenario. Supported by the customer inspiration theory, this study explores the psychological mechanism underlying impulse purchase in short videos that differentiates the traditional web shopping by the strong sense of presence in short video marketing. On the basis of a questionnaire survey and three laboratory experiments, this study examines the relationship among (...) presence, customer inspiration, and impulse purchase intention. The empirical results point to the fact that social presence, co-presence, and physical presence have significant positive effects on impulse purchase intention, and customer inspiration mediates the effect of social presence, physical presence, and co-presence on impulse purchase intention. Furthermore, it is indicated that social and co-presence have stronger influences on impulse purchase intention than physical presence, thus proving a stronger effect of social factors on impulse purchase intention than physical factors in short video environment. The research results testify the impact of presence on consumer behavior in the upgrading short video marketing and provide valuable reference for marketing strategies to shorten consumers' decision-making time in short video purchase. (shrink)

Conflicts in land exploration are incisive social problems which have been the subject in many studies. Risk assessment of land conflicts is effective to resolve such problems. Specifically, fuzzy mathematics and the analytic hierarchy process were combined together to evaluate risk in land conflicts in our work, which is proved useful to solve uncertainty and imprecision problems. Based on the analysis of the principles for the risk assessment of a land conflicts index system, a set of risk assessment indexes using (...) the fuzzy analytic hierarchy process was presented. The results show that the overall risk is at medium level, and the risk of the feasibility index and controllability index need to be paid more attention to. The contribution of this article is reflected in two aspects: the application of FAHP in risk assessments of land conflicts is effective and valid; it is helpful for governments to establish a stricter management system of work safety for conflicts in land exploration based on the risk assessment results. (shrink)

Risky driving behavior is a major cause of traffic conflicts, which can develop into road traffic accidents, making the timely and accurate identification of such behavior essential to road safety. A platform was therefore established for analyzing the driving behavior of 20 professional drivers in field tests, in which overclose car following and lane departure were used as typical risky driving behaviors. Characterization parameters for identification were screened and used to determine threshold values and an appropriate time window for identification. (...) A neural network-Bayesian filter identification model was established and data samples were selected to identify risky driving behavior and evaluate the identification efficiency of the model. The results obtained indicated a successful identification rate of 83.6% when the neural network model was solely used to identify risky driving behavior, but this could be increased to 92.46% once corrected by the Bayesian filter. This has important theoretical and practical significance in relation to evaluating the efficiency of existing driver assist systems, as well as the development of future intelligent driving systems. (shrink)

本書是第一部專門從政治學及社會學角度,討論儒家思想在當代中國政治發展中的地位與作用的學術專著,具有堅實的政治學及社會學理論支撐和學理基礎,以及明晰而嚴格的學科性分析等特點,填補了政治學界在儒家及其"復 興"與大陸政治之關係這一課題上缺乏系統而專業性研究的空白.

哲學的有限性問題涉及認識論、生存論等維度，中國哲學在有限性問題上的認識複雜多端。書稿揭示了中國哲學史上有限性概念的主要內涵、流變及其消失。主要論述了先秦儒道兩家（包括孔子、思孟學派、《周易》、荀子、莊 子）對界限的認可，及宋明理學、內丹學等後世儒道學派對這一維度的轉變。並分析了中國思想史上有限性維度的困境及其消失，包括墨家的反對等等，進而論證了中國古代傳統中有限性維度消失在思維方式上的原因，包括中國 哲學宋代以後整體轉向內省的思維向度等。.