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.

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)

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)

A result from a standard linear model course is that the variance of the ordinary least squares (OLS) coefficient of a variable will never decrease when including additional covariates into the regression. The variance inflation factor (VIF) measures the increase of the variance. Another result from a standard linear model or experimental design course is that including additional covariates in a linear model of the outcome on the treatment indicator will never increase the variance of the OLS coefficient of the (...) treatment at least asymptotically. This technique is called the analysis of covariance (ANCOVA), which is often used to improve the efficiency of treatment effect estimation. So we have two paradoxical results: adding covariates never decreases the variance in the first result but never increases the variance in the second result. In fact, these two results are derived under different assumptions. More precisely, the VIF result conditions on the treatment indicators but the ANCOVA result averages over them. Comparing the estimators with and without adjusting for additional covariates in a completely randomized experiment, I show that the former has smaller variance averaging over the treatment indicators, and the latter has smaller variance at the cost of a larger bias conditioning on the treatment indicators. Therefore, there is no real paradox. (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)

Prior research on citizenship behavior has mainly focused on its voluntary side—organizational citizenship behavior. Unfortunately, although compulsory behavior is a global organizational phenomenon, the involuntary side of CB—compulsory citizenship behavior, defined as employees’ involuntary engagement in extra-role work activities that are beneficial to the organization : 77–93, 2006)—has long been neglected and very little is known about its potential negative consequences. Particularly, research on CCB–counterproductive work behavior association is still in its nascent stage. Therefore, drawing on moral disengagement theory and (...) social exchange theory, we firstly attempt to systematically investigate how and when CCB leads to CWB. Specifically, we see employee silence as a critical form of passive CWB and propose a moderated mediation model. In the model, CCB predicts silence through MD—a set of cognitive mechanisms that deactivate moral self-regulatory processes, with the Chinese culture-specific concept of supervisor–subordinate guanxi, which captures the supervisor–subordinate non-work-related personal ties, acting as the contextual condition. Two-wave data collected from a sample of 293 employees in 17 manufacturing firms in China supported our hypotheses. The results revealed that the more employees experienced compulsory feelings caused by CCB, the more they morally disengaged and, in turn, resorted to avoidant or passive responses as a coping strategy. Further, s–s guanxi serves as a reverse moderator in that high s–s guanxi mitigates the destructive impact of CCB, makes employees less inclined to morally disengage, and thereby largely prevents them from practicing workplace silence behavior. Implications for theory and intervention strategies for practice are discussed. We also propose several promising avenues for future research. (shrink)

Arthur Danto is one of the best Anglophone philosophers of art of the second half of the 20th century. His unique methodology of indiscernibility and provocative claim about the end of art have bee...

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)

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。.

本书选录历代著名作家对龙舟竞技活动进行表现的诗文作品,介绍作者生平,注解难点字词,并对作品艺术手法、思想进行评论等。.

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)

The authors find East Asians to be holistic, attending to the entire field and assigning causality to it, making relatively little use of categories and formal logic, and relying on "dialectical" reasoning, whereas Westerners, are more analytic, paying attention primarily to the object and the categories to which it belongs and using rules, including formal logic, to understand its behavior. The 2 types of cognitive processes are embedded in different naive metaphysical systems and tacit epistemologies. The authors speculate that the (...) origin of these differences is traceable to markedly different social systems. The theory and the evidence presented call into question long-held assumptions about basic cognitive processes and even about the appropriateness of the process–content distinction. (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.

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)

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)