continent. 2.1 (2012): 2–5 To begin with, as we understand from a remote place like Seoul, there have been two different conceptions of materiality in the Western experimental ?lm history: materiality of cinema and of ?lm. The former has been represented by the practitioners of the so-called the “Expanded Cinema” and the latter by the tradition of the “Hand-made” ?lm. Whereas for the Expanded Cinema, the materiality or the “medium-speci?city” includes not only the ?lm material but also the entire condition (...) and environment in which the cinematic experience is situated (i.e.: screen, projector, audience and theatre); for the Hand-made ?lm, it is the whole ?lmic process prior to the screening in front of the audience (i.e.: hand-processing and optical-printing). The two practices share in the materialist turn that opens up the radical possibilities of aesthetic (and even political) interventions into a process previously considered seamless and transparent. What can be called to attention through the materialist turn includes the aesthetic-institutional process in the projection-spectator relation and the (non-) representational process in ?lm-making. Moreover, these interventions bring their own temporalities back to those processes, and this returning emancipates the temporalities from their subordination to the cinema-as-commodity. Hangjun Lee is a ?lm-based artist whose practice is concerned with Hand-made Film and Experimental Cinema. Given these interests, Lee questions the linkage between materiality and temporality. This was his preoccupation around 2006, the time at which he started to collaborate with Chulki Hong, the noise improviser. The improvisational nature of their audio-visual performances opened means of detouring from the conventional editing techniques. Their collaboration also afforded critical investigations into the performativity of the practices in both the darkroom and the screening room, as well as in the private recording/practicing studio, and public performance spaces for the improvising musician. In fact, it was a kind of common interest shared by both us from the outset. In our collaboration, we avoid sacri?cing/concealing/minimizing one form of performativity (the performative nature and temporality of compositional process) for the sake of the other (i.e. those in improvisational and executional process). In the ?eld of experimental music and sound, this kind of approach has been comprehensively called “cracking” or “hacking”. The concepts are ?nely formulated in the coinage of “Cracked Everyday Electronics” (by Voice Crack) or more generally “Handmade Electronic Music” (by Nicolas Collins). 1 And this was a pure but perhaps necessary coincidence. the original title of the work of our collaboration and, retrospectively, of the set of our working principles at the same time, “The Cracked Share” was named by Lee after Georges Bataille’s masterwork, The Accursed Share , with the substitution of the adjective with “Cracked” as a synonym for ‘reticulated’ in the photographic image. We think the ascetic and subtractive aesthetic turn of the contemporary non-idiomatic improvised (and even somewhat non-improvised) music 2 pushed us further towards more radical dissociation with the empty temporality of commodi?ed audio-visual experience. It can be called the aesthetics of “without,” and exemplars include Yoshihide Otomo’s Turntable Without Records , Sachiko M’s Sampler without Samples . There are also other radical experiments even with the (non-)improvised music without noise and sounds that neatly meet the rules and idioms of the existing/established experimental music. For us, this thread among the experimental music currents weighs in its emphasis on subtractive and dissociational power unique to improvisational action. Surely, the tradition of the Cracked and Handmade improvised music teaches us the crucial lesson that “[m]edia and mediation are never transparent” and that “[m]ediation actively transforms data from one form to another and is never passive.” 3 We couldn’t agree to this statement more. However, without the removal and withdrawal power of improvisation that poses and keeps both subjects (performer and audience) and objects (projector and instrument) in “inferiority,” 4 generalized cracking and hacking practices—or simply “glitch”—in music and visuals would be either sublimated into the mystical and ritualistic forms of “Film Alchemy” and “Noise Music” (to which both of us still strongly feel a belonging but also, more or less, ambivalent sentiments), or else assimilated into the logic of the commodi?ed audio-visual communication. Today in music, this principle of improvisational performativity should be formulated as the dis-organization of sound against the associational de?nition of (electronic) music and it needs to be translated into audio-visual experiences. In other words, cracking practices of free improvisation need not be limited in artistic creativity, in a darkroom, in a studio, or on the stage; the principle of the dis-organization of sound should be the principle of dis-organization (or cracked organization) of audio-visual performance space itself. NOTES 1) Norbert Möslang, “How Does a Bicycle Light Sound?: Cracked Everyday Electronics,” Leonardo Music Journal 14 (2004): 83; Nicolas Collins, Handmade Electronic Music: The Art of Hardware Hacking (New York: Rutledge, 2006). 2) We refer this not to the historical style or genre but rather the idea and practice that ?free improvisation? stands for. On the distinction between idiomatic and non-idiomatic improvisation, see Derek Bailey, Improvisation: Its Nature and Practice in Music (Cambridge, MA: Da Capo, 1993). On radically politico-histrorical interpretations of free improvisation and noise music from various present viewpoints, see Noise and Capitalism , (eds.) Mattin & Anthony Iles (Arteleku Audiolab, 2009). 3) Caleb Kelly, Cracked Media: The Sound of Malfunction (Cambridge: MIT Press, 2009), p. 29. 4) I borrow the term from my long-time collaborator, Choi Joonyong. See Ryu Hankil, Hong Chulki & Choi Joonyong, Inferior Sounds (Balloon and Needle, CD, 2011). (shrink)

The COVID-19 pandemic has caused tremendous loss starting from early this year. This article aims to investigate the change of anxiety severity and prevalence among non-graduating undergraduate students in the new semester of online learning during COVID-19 in China and also to evaluate a machine learning model based on the XGBoost model. A total of 1172 non-graduating undergraduate students aged between 18 and 22 from 34 provincial-level administrative units and 260 cities in China were enrolled onto this study and asked (...) to fill in a sociodemographic questionnaire and the Self-Rating Anxiety Scale twice, respectively, during February 15 to 17, 2020, before the new semester started, and March 15 to 17, 2020, 1 month after the new semester based on online learning had started. SPSS 22.0 was used to conduct t-test and single factor analysis. XGBoost models were implemented to predict the anxiety level of students 1 month after the start of the new semester. There were 184 and 221 students who met the cut-off of 50 and were screened as positive for anxiety, respectively, in the two investigations. The mean SAS scores in the second test was significantly higher than those in the first test. Significant differences were also found among all males, females, and students majoring in arts and sciences between the two studies. The results also showed students from Hubei province, where most cases of COVID-19 were confirmed, had a higher percentage of participants meeting the cut-off of being anxious. This article applied machine learning to establish XGBoost models to successfully predict the anxiety level and changes of anxiety levels 4 weeks later based on the SAS scores of the students in the first test. It was concluded that, during COVID-19, Chinese non-graduating undergraduate students showed higher anxiety in the new semester based on online learning than before the new semester started. More students from Hubei province had a different level of anxiety than other provinces. Families, universities, and society as a whole should pay attention to the psychological health of non-graduating undergraduate students and take measures accordingly. It also confirmed that the XGBoost model had better prediction accuracy compared to the traditional multiple stepwise regression model on the anxiety status of university students. (shrink)

ABSTRACT Leaders have been thought to play a vital role in influencing employees’ unethical behavior. However, what happens to leaders and followers in the aftermath of unethical conduct has received little attention in the literature. Drawing from the correspondent inference theory, we examine the conditions under which leaders attribute their followers’ unethical behavior to poor moral character and eventually assign them low performance ratings. Through a two-wave research design and data from 290 matched employee–leader dyads, we found that a leader (...) is more likely to infer that a follower who has engaged in unethical behavior is of poor moral character when the leader has a higher moral identity, and the leader will impose lower performance ratings on this follower when the leader prefers lower moral decoupling. (shrink)

Brand rumors can harm brands’ image and bring significant impacts on customers’ decision-making and sharing behavior. Finding practical strategies for preventing the spread of brand rumors continues to be a challenge. Building on the social contagion theory, the current research enriches the discussion on understanding why people spread rumors and how to deal with the spreading of rumors. Sharing brand rumors is motivated by a variety of complex psychological reasons, but prior research didn’t adequately analyze the problem from a complexity (...) perspective. Therefore, using a sample of 416 interviewers within eight types of brand rumors, this study employs fuzzy-set qualitative comparative analysis to investigate the combination of rumor psychological communication motivations in brand activities and solutions to prevent the spread of brand rumors. The current study discoveries three and two first-level configurational solutions, respectively, that can promote positive and negative rumor spreading. To summarize, emotional stimulation is a key component in the spread of rumors; altruism and relationship management motivation can coexist at times; and untrusted rumors are disseminated through other motivation factors. Solutions to prevent rumors from spreading are also provided. Furthermore, the findings help to understand the psychology of configurational motivation and how it can help brands reduce the spread of brand rumors. Finally, these discoveries’ theoretical contributions and practical implications are presented. (shrink)

Searching for integrable systems and constructing their exact solutions are of both theoretical and practical value. In this paper, Ablowitz–Kaup–Newell–Segur spectral problem and its time evolution equation are first generalized by embedding a new spectral parameter. Based on the generalized AKNS spectral problem and its time evolution equation, Lax integrability of a nonisospectral integrodifferential system is then verified. Furthermore, exact solutions of the nonisospectral integrodifferential system are formulated through the inverse scattering transform method. Finally, in the case of reflectionless potentials, (...) the obtained exact solutions are reduced ton-soliton solutions. Whenn=1andn=2, the characteristics of soliton dynamics of one-soliton solutions and two-soliton solutions are analyzed with the help of figures. (shrink)

This chapter contains sections titled: References Further reading.

Based on an analysis of a landmark case Lim Mey Lee Susan v Singapore Medical Council in Singapore where a doctor was professionally disciplined for over-charging a wealthy patient, a judgement upheld by the Singapore High Court, this paper will discuss the notion of an ‘ethical price’ (EP) and its determination with respect to the provision of healthcare services. It will first examine the limitations of a legal approach for setting an ethical limit to pricing. From there, it will argue (...) that Confucian philosophy provides a useful ethical framework to explore EP, with focus on the context of Singapore. The following question is addressed: What is an ethical pricing standard for medical practice from a Confucian perspective? The strengths and limitations of a Confucian value base as regards the determination of an objective EP will be analysed through an examination of the shortcomings of the doctor’s behaviour in the Susan Lim case as well as other case scenarios. The paper will conclude with some practical suggestions on how Confucian-based ideas can be applied to decision-making on pricing and the importance of this for medical professionalism and ethics teaching. (shrink)

Previous studies have reported abnormal amplitude of low-frequency fluctuation and regional homogeneity in patients with migraine without aura using resting-state functional magnetic resonance imaging. However, how whole brain functional connectivity pattern homogeneity and its corresponding functional connectivity changes in patients with migraine without aura is unknown. In the current study, we employed a recently developed whole brain functional connectivity homogeneity method to identify the voxel-wise changes of functional connectivity patterns in 21 patients with migraine without aura and 21 gender and (...) age matched healthy controls. Moreover, resting-state functional connectivity analysis was used to reveal the changes of corresponding functional connectivities. FcHo analyses identified significantly decreased FcHo values in the posterior cingulate cortex, thalamus, and left anterior insula in patients with migraine without aura compared to healthy controls. Functional connectivity analyses further found decreased functional connectivities between PCC and medial prefrontal cortex, between AI and anterior cingulate cortex, and between THA and left precentral gyrus. The functional connectivities between THA and PCG were negatively correlated with pain intensity. Our findings indicated that whole brain FcHo and connectivity abnormalities of these regions may be associated with functional impairments in pain processing in patients with migraine without aura. (shrink)

Based on a national survey of Chinese scientific personnel in 2008, this paper sheds new light on the relationship between social networks and scientific performance. In this study, we used position generator to measure scientists’ ego-centered social networks. The scientists’ performance was measured by multiple indexes, including recognitions from the academic, governmental, and market sectors. The findings show that size and composition of scientists’ social networks have significant effect on their scientific performance. The notions of “information communication mechanism” and “resource (...) acquisition mechanism” are introduced to explain how network composition affects scientific performance along multiple dimensions. The policy implications of the study are also discussed. (shrink)

The question of what determines brain laterality for auditory cognitive processing is unresolved. Here, we demonstrate a swap of hemisphere dominance from right to left during semantic interpretation of Chinese lexical tones in native speakers using simultaneously recorded mismatch negativity response and behavioral reaction time during dichotic listening judgment. The mismatch negativity, which is a brain wave response and indexes auditory processing at an early stage, indicated right hemisphere dominance. In contrast, the behavioral reaction time, which reflects auditory processing at (...) a later stage, indicated a right ear listening advantage, or left hemisphere dominance. The observed swap of hemisphere dominance would not occur when the lexical tone was substituted with a meaningless pure tone. This swap reveals dependence of hemisphere labor division initially on acoustic and then on functional cues of auditory inputs in the processing from sound to meaning. (shrink)

In the context of coronavirus pandemic, the face-recognition-based access control system has been intensively adopted to protect students’ and teachers’ health and safety in school. However, the impact of FACS, as a new technology, on students’ attitude toward accepting FACS has remained unknown from the psychological halo effect. Drawn on “halo effect” theory where psychological effects affect the sense of social identity and belonging, the present study explored college students’ sense of school identity and belonging in using FACS during COVID-19 (...) based on the technology acceptance model. Data collected from 391 college students was analyzed using SEM to verify the relationship among perceived usefulness, perceived ease of use, intention to use, school identity, and school belonging. The results show that PU and PEU can positively predict IU, and consequentially can positively predict school identity and school belonging. Our study expands the application of halo effect theory to study FACS acceptance based on TAM, and provides strong evidence to support the effect of school FACS during the pandemic. The findings of this study also suggest that FACS acceptance can enhance students’ sense of school identity and belonging. (shrink)

Changes in the external market environment put forward objective requirements for the formulation of organizational strategic plans, making it difficult for the organization’s leaders to make the right and effective decisions quickly on their own. As a result, participative leadership, which encourages and supports employees to participate in the decision-making process of organizations, has received increasing attention in both theory and practice. We searched the literature related to participative leadership in databases such as Web of Science, EBSCO, ProQuest, and China (...) National Knowledge Infrastructure. Based on this, we clarify the concept of participative leadership, propose a definition of participative leadership, summarize measurement scales for this type of leadership, and compare participative leadership with other leadership styles. We also present a research framework for participative leadership that demonstrates its antecedents; the mechanisms for its development based on social exchange theory, conservation of resources theory, social cognitive theory; social information processing theory, and implicit leadership theory; and outcomes. Finally, we identify five potential research areas: Connotation, antecedents, outcomes, mediators and moderators, and study of participative leadership in China. (shrink)

Compared with the large number of studies on reading of children with hearing loss in alphabetic languages, there are only a very limited number of studies on reading of Chinese-speaking children with HL. It remains unclear how phonological, orthographic, and semantic skills contribute to reading fluency of Chinese school-age children with HL. The present study explored this issue by examining the performances of children with HL on reading fluency and three linguistic skills compared with matched controls with normal hearing. Specifically, (...) twenty-eight children with HL and 28 chronological-age-matched children with NH were tested on word/sentence reading fluency, phonological awareness which was composed of onset/vowel/lexical tone awareness, orthographic knowledge, and semantic competence which comprised animal word identification, pseudo-homophone detection, and word segmentation. Results showed that children with HL lagged behind their peers with NH in WRF/SRF and most of the phonological, orthographic, and semantic subskills except onset awareness and pseudo-homophone detection. Furthermore, the significant contributors to WRF differed between the two groups with PA being the significant contributor in the children with NH while OK being the significant contributor in the children with HL. However, the significant contributor to SRF did not differ between the two groups with SC being the only significant contributor. These results revealed not only between-group differences but also similarities in the relative contributions of PA, OK, and SC to reading fluency at both word and sentence levels, which has practical implications for developing better training programs to improve reading for children with HL. (shrink)

Most binaural speech source localization models perform poorly in unprecedentedly noisy and reverberant situations. Here, this issue is approached by modelling a multiscale dilated convolutional neural network. The time-related crosscorrelation function and energy-related interaural level differences are preprocessed in separate branches of dilated convolutional network. The multiscale dilated CNN can encode discriminative representations for CCF and ILD, respectively. After encoding, the individual interaural representations are fused to map source direction. Furthermore, in order to improve the parameter adaptation, a novel semiadaptive (...) entropy is proposed to train the network under directional constraints. Experimental results show the proposed method can adaptively locate speech sources in simulated noisy and reverberant environments. (shrink)

We examine the association between benevolent leadership and team creative performance in scientific research teams. Moreover, the mediating effects of creative self-efficacy and the moderating effects of openness to experience on the relationship were also analyzed. The study sample comprised 251 postgraduates from 58 scientific research teams in Chinese universities. Results revealed that benevolent leadership was positively related to team creative performance, and creative self-efficacy partially mediated this positive relationship. When team personality composition had a high average team level of (...) or a low level of variance on openness to experience, the relationship between creative self-efficacy and team creative performance was stronger. The same situation also occurred as an indirect effect of benevolent leadership on team creative performance through creative self-efficacy. This study suggests that while people may pay focus on benevolent leadership and creative self-efficacy, team personality composition should also be considered in scientific research team practices. (shrink)

The relationship between children and their maternal uncles in contemporary Mosuo culture reveals a unique parenting mode in a matrilineal society. This study compared the responses of Mosuo and Han participants from questionnaires on the parent–child and maternal uncle–child relationship. More specifically, Study 1 used Inventory of Parent and Peer Attachment to assess the reactions of the two groups to the relationship between children and their mothers, fathers, and maternal uncles. The results show that while Han people display a higher (...) level of attachment toward their fathers than their maternal uncles, Mosuo people do not exhibit a significant difference in this aspect. Study 2 used a scenario-based method to compare how adults and teenagers perceive the rights and responsibilities of fathers/maternal uncles toward their children/nephews or nieces. The results show that Han adults attribute more rights and responsibilities to their own children than nephews/nieces, while their Mosuo counterparts have the reverse pattern and assign stronger responsibilities to their nephews/nieces than their own children. Both groups perceive the fathers to be the bearer of rights and responsibilities, although this perception was weaker among Mosuo. This paper concludes that in the Mosuo society, fathers have a relatively weak social role as a result of their unique matrilineal social structure. (shrink)

A Higher education system is closely related to a country’s development. Governments need to make appropriate adjustments to ensure the healthy and sustainable development of higher education. To measure and evaluate the development status of the national higher education system and propose a set of policies, the following work has been done in this paper: First, this paper establishes a comprehensive evaluation index system based on the AHP-FCE model. The healthy development of education in significant countries was compared horizontally and (...) vertically. The results of weighted scores were used to determine the Japanese higher education system as the research object. Secondly, this paper uses factor analysis and principal component analysis to evaluate the level of sustainable development of higher education, detecting development barriers that migrate from the current to the future. This paper proposes a healthy and sustainable development policy blueprint from four aspects. Finally, this article uses the ARMA time series model to predict the development trend of Japanese higher education in the next 30 years and formulates a timetable for corresponding implementation arrangements. In addition, this paper quantitatively evaluates the effectiveness of the policies we propose and their impact on reality and provides references for other countries in the world. (shrink)

<2020 Buddhist Book Award (2nd place), Korea> <2020 Sejong Book Award, Korea> The book discusses and provides solutions for the philosophical issues of Aristotelian essentialist biology, Darwin’s evolutionary theory, and contemporary molecular biology in light of Buddhist concepts of dependent arising and emptiness. CONTENT 1. Buddhist Teachings from the perspective of Bioscience 2. Bioscience from the Perspective of Buddhist Teachings 3. Enlightenment, Compassion and Bioscientific Phenomena 4. Enlightenment, Revolutionary Change of Worldview 5. The Buddhist Understanding of Development in Biology 1 (...) 6. The Buddhist Understanding of Development in Biology 2 7. The Buddhist Understanding of Development 1 8. The Buddhist Understanding of Development 2 9. The Buddhist Understanding of Aging 10. The Buddhist Understanding of Sickness 11. The Buddhist Understanding of Death 1 12. The Buddhist Understanding of Death 2 13. The Buddhist Understanding of Species 1 14. The Buddhist Understanding of Species 2 15. The Concept of Gene and its History 16. Genetic Dualism and Buddhist Criticism 17. The Buddhist Understanding of the Gene 1 18. The Buddhist Understanding of the Gene 2 19. Evolution is not Progress but Changes 20. Evolution is neither Deterministic nor Indeterministic. It is the Process of Interdependent Arising 21. Reconsidering Chance and Necessity 22. What Darwin Left Us 23. The Evolution of Buddhism 1 24. The Evolution of Buddhism 2 . (shrink)

The setting in which people generate ideas and work collaboratively to solve problems is gradually shifting from traditional face-to-face communities to virtual communities. Virtual communities are, therefore, becoming a new source of creative ideas. Nevertheless, online creativity is not without challenges. The main obstacle seems to be a lack of active engagement from participants within these virtual communities, resulting in a low quality and quantity of creative content when compared to traditional methods of creation. Research suggests that successfully generating creative (...) ideas online involves sustained, active engagement among collaborators. A number of studies have investigated various factors related to the generation of creative ideas within virtual communities. However, a comprehensive understanding of contributing factors remains elusive. This study examines past research on the factors that drive creative ideas generation in online creative communities through a systematic literature review. The study seeks to analyze research findings over the past decade and provide an overview of the main driving factors, research areas, research trends, and implications for future research. Web of Science and Scopus were used to identify relevant articles, while Google Scholar was used to minimize the risk of missing any valuable data related to the aim of this study. The results provide an overview of the studies examining creative ideas generation within virtual communities. By approaching the subject matter from three primary perspectives, this paper identifies influencing factors associated with the successful generation of creative ideas online. The results of the paper also provide an overview of the research methods and guiding theories adopted by current researchers. The paper concludes with research trends and recommendations for future research. (shrink)

Human flesh search engine can be a double-edged sword, bringing convenience on the one hand and leading to infringement of personal privacy on the other hand. This paper discusses the ethical problems brought about by the human flesh search engine, as well as possible solutions.

ObjectivesThe purpose of this study was to identify risk factors for delirium after total joint arthroplasty and provide theoretical guidance for reducing the incidence of delirium after TJA.MethodsThe protocol for this meta-analysis is registered with PROSPERO. We searched PubMed, the Cochrane Library and Embase for observational studies on risk factors for delirium after TJA. Review Manager 5.3 was used to calculate the relative risk or standard mean difference of potential risk factors related to TJA. STATA 14.0 was used for quantitative (...) publication bias evaluation.ResultsIn total, 25 studies including 3,767,761 patients from 9 countries were included. Old age has been widely recognized as a risk factor for delirium. Our results showed that the main risk factors for delirium after TJA were patient factors, comorbidities, surgical factors and drug factors.ConclusionsMultiple risk factors were associated with delirium after TJA. These results may help doctors predict the occurrence of delirium after surgery and determine the correct treatment.Systematic review registrationhttps://www.crd.york.ac.uk/prospero/, identifier: CRD42020170031. (shrink)

Deep learning is widely used in the fields of information technology and education innovation but there are few studies for young children in the preschool stage. Therefore, we aimed to explore factors that affect children’s learning ability through collecting relevant information from teachers in the kindergarten. Literature review, interview, and questionnaire survey methods were used to determine the influencing factors of deep learning. There were five dimensions for these factors: the level of difficulty of academic, communication skills, level of active (...) collaboration, level of in-depth processing, and reflection level evaluation. Reliability and validity tests were used to analyze the data from questionnaires. In total, 100 valid questionnaires were collected. The Cronbach coefficients for academic challenge, communication, active cooperation, deep processing, and reflective evaluation were 0.801, 0.689, 0.770, 0.758, and 0.665, respectively. Principal component analysis revealed that there were three main factors that affect children’s learning depth: the level of deep processing, the level of reflective evaluation, and the active level of collaboration. In conclusion, there were several factors affecting deep learning in children and further studies are warranted to promote the development of this field. (shrink)

Retailers are faced with a dilemma of whether to share demand information with other supply chain members, and if so, how to share it. Our research interest is motivated by the grounds that the value of downstream retailers’ sales information to upstream manufacturers is to improve the accuracy of manufacturers’ order forecasting. This problem is particularly important in the remanufacturing of closed-loop supply chains. In this study, we consider a retailer as the demand information holder, who sells new and remanufactured (...) products in wholesale to a manufacturer and, simultaneously, she and the manufacturer competitively collect used products from the customers. We explicitly characterize the role of information sharing in a CLSC. We contributed to the information-sharing literature by integrating the existing information-sharing model with dual recycling channels and channel power structure. Previous literature suggests that retailers prefer to share demand information with other firms when the market demand is high. However, surprisingly, we find that when the manufacturer does not play a leading role, the retailer shares her forecast demand information with the manufacturer if the market demand is low. We also show that information sharing reduces the overall profit of the supply chain when the manufacturer dominates the market. In addition, our results also illustrate that information sharing affects the performance of the supply chain mainly by affecting the wholesale price. (shrink)

Working speed as a latent variable reflects a respondent’s efficiency to apply a specific skill, or a piece of knowledge to solve a problem. In this study, the common assumption of many response time models is relaxed in which respondents work with a constant speed across all test items. It is more likely that respondents work with different speed levels across items, in specific when these items measure different dimensions of ability in a multidimensional test. Multiple speed factors are used (...) to model the speed process by allowing speed to vary across different domains of ability. A joint model for multidimensional abilities and multifactor speed is proposed. Real response time data are analyzed with an exploratory factor analysis as an example to uncover the complex structure of working speed. The feasibility of the proposed model is examined using simulation data. An empirical example with responses and response times is presented to illustrate the proposed model’s applicability and rationality. (shrink)

The Pairizhang (day-to-day accounts) found in Huizhou were mostly written by the pupils in old-style private school. They seem similar to a dairy in some way with the activities of family members (mostly male) as the main contents. However, they differ from modern diaries in many ways. It was a common practice in Wuyuan County to keep day-to-day accounts in the late Qing Dynasty and the Republic of China. By analyzing the 5 accounts found there, many underlying facts can be (...) revealed, such as the time allocation of the main labor force, the composition of the peasant’s family economy, the general situation of productive activity and the days and ranges of their outdoor activity, etc. All these findings can help us have a better understanding of the peasants’ life in Huizhou at that time. (shrink)

In this paper, we derive necessary and sufficient conditions on team based tasks in order for a selection criterion applied to individuals to produce optimal teams. We assume only that individuals have types and that a team’s performance depends on its size and the type composition of its members. We first derive the selection principle which states that if a selection criterion exists, it must rank types by homogeneous team performance, the performance of a team consisting only of that type. (...) We then prove that a selection criterion exists if and only if replacing the team’s lowest ranked type, as measured by homogeneous team performance, with a higher ranked type increases team performance. Finally, we show that the replace the lowest ranked property rules out most common types of team complementarities, including benefits to diverse types and types that fill structural holes. (shrink)

Hong Kong is undergoing a public debate on the need to reform and future directions of reforming its health care system. This paper highlights the debates and considerations brought up by the Hospital Authority, the largest provider of public health care in Hong Kong, on the ethical principles and societal values underlying the upcoming reform. It is recognized that the exact meanings behind each ethical principle and value must be debated and clarified during the reform process. In a (...) modern day society like Hong Kong, societal values are likely to be diversified. A health care system also has to fulfil different and often conflicting objectives of equity, efficiency, quality and choice. It would be difficult for a health care system to satisfy these different values and objectives based on a single value parameter. The Hong Kong experience shows that a society may prefer a combination of strategies in addressing different societal values. The re-structuring of the health care system in Hong Kong should therefore be based on a balanced and optimum combination of various financing and delivery strategies. (shrink)