Triadic Interaction among Newly Acquainted 2-year-olds

Are children as young as 2 years old able to interact in groups of three? The study applied the family triad model first introduced by Parke, Power, and Gottman (1979 ) to the case of peer interaction. In Experiment 1 , the model was refined for use in studies of peer interaction and applied to an existing dataset of 16 triads of newly acquainted 24‐month‐olds. In Experiment 2 , the triadic coding system was further refined and applied to 12 single‐sex triads of newly acquainted 2‐year‐olds. The findings demonstrated that 2‐year‐olds are capable of triadic interaction although the predominant interaction pattern in triads is still dyadic. Contrary to past reports, triadic interaction was more likely to occur when the children were not in conflict. Both girls and boys were capable of triadic interaction.     

从日中比较角度谈日本学者的中国古代文学研究方法论

日本学者家井先生继承赤冢忠先生的学说并加以批判性、实证性的发展 ,从而对《诗经》的《风》、《雅》、《颂》以及“兴”提出了新的理解。石川三佐男先生在楚辞研究中 ,采用了把战国秦汉时期长江流域、楚地等出土的考古资料与《楚辞》诸篇进行比较研究这一前所未有的方法。通过这种方法可以开拓出仅靠文献资料和文献学不能进入的领域。石川先生的《楚辞》研究 ,是以他在二松学舍大学研究生院攻读时 ,在赤冢忠博士指导下所学到研究《诗经》、《楚辞》的方法为基础的。石川先生的研究与赤冢忠博士和其他楚辞研究者的方法截然不同的是 ,他运用了马王堆汉墓出土的“帛画” ,并特别重视长江流域和楚地出土的考古资料。     

Trading transforms of non-weighted simple games and integer weights of weighted simple games

Theory and Decision - This study investigates simple games. A fundamental research question in this field is to determine necessary and sufficient conditions for a simple game to be a weighted...     

How Applicable are Western Models of Patient‐Physician Relationship in Asia?: Changing Patient‐Physician Relationship in Contemporary Japan

Abstract:  The social and political environments surrounding patient-physician relationship have been changing in Japan for the last few decades. This paper aims to illustrate social and cultural factors that underlie current situations and problems of patient-physician relationship in Japan through a comparison with those in western countries, and to consider how mutual participation model of patient-physician relationship could be applied and fostered in Japan as well as other Asian cultures. Four major sociocultural factors are discussed in relation to the patient-physician relationship in Japan: (1) individualism versus collectivism; (2) low context versus high context; (3) femininity versus masculinity; and (4) Christianity versus Confucianism. Two key issues in discussing the mutual participation model of patient-physician relationship in Japan have emerged; the family and the communication style. The patient autonomy in Japan should be considered within the context of the triadic relationship of patient, family, and physician. Also, since the communication style might differ between Japan and western countries, communication training programs and interventions for medical professionals as well as for patients should be tailored in a culturally appropriate way in order to improve the communication in medical encounters and to achieve the mutual participation. Beyond mere advocacy of the patient autonomy, the mutual participation model of patient-physician relationship should be pursued within our social and cultural context to be truly fruitful for patients and physicians in Japan.     

Communication Protocols with Belief Messages

This paper presents a communication protocol to reach consensus. In our setting, every player has asymmetric information and evaluates a fixed event on his information. According to the protocol, the sender sends non-partitional messages that he believes the event with a probability of at least his evaluation. We show that the posteriors for the event must be equal among the players after the communication. Journal of Economic Literature Classification: C62, C78.     

Estimation of the Proportion of Defective Units by Using Group Testing Under the Existence of a Threshold of Detection

Group testing procedures, in which groups containing several units are tested without testing each unit, are widely used as cost-effective procedures in estimating the proportion of defective units in a population. A problem arises when we apply these procedures to the detection of genetically modified organisms (GMOs), because the analytical instrument for detecting GMOs has a threshold of detection. If the group size (i.e., the number of units within a group) is large, the GMOs in a group are not detected due to the dilution even if the group contains one unit of GMOs. Thus, most people conventionally use a small group size (which we call conventional group size) so that they can surely detect the existence of defective units if at least one unit of GMOs is included in the group. However, we show that we can estimate the proportion of defective units for any group size even if a threshold of detection exists; the estimate of the proportion of defective units is easily obtained by using functions implemented in a spreadsheet. Then, we show that the conventional group size is not always optimal in controlling a consumer's risk, because such a group size requires a larger number of groups for testing.     

A new quantitative method for assessing sleepiness: The alpha attenuation test

Abstract

Sleepiness interferes with the ability of night-workers and shiftworkers to safely and effectively perform their jobs, and has been increasingly recognized as a major cause of industrial and transportation accidents. Current methods for the assessment of physiological sleepiness levels, such as the Multiple Sleep Latency Test (MSLT) have several limitations and are particularly impractical in field or occupational studies. In this study, the effectiveness of the Alpha Attenuation Test (AAT) for the quantification of sleepiness has been evaluated and compared to the MSLT during a 40-h sleep deprivation protocol. The AAT, a 12-min eye closed/open protocol, is a quantitative method based on the fact that EEG alpha (8-12 Hz) activity tends to increase with eyes open as individuals get sleepier, while it decreases with eyes closed. In this validation study, the AAT proved to be a sensitive measure of sleepiness induced by sleep deprivation, and it also correlated well with the MSLT. Relative to the MSLT, the AAT has the advantages of being objective, minimally intrusive, and more practical especially in industrial or field studies.     

李大钊早期思想中的日本因素——以茅原华山为例

李大钊早期著作充满着复杂性和神秘性。长期以来,有很多学者提出了各种各样的解释来试图阐明他早期思想的特色及来源。笔者经过考察发现,对李大钊的早期思想产生最大最直接影响的是日本评论家茅原华山的一系列著作。更具体地说,以《青春》为代表的李大钊著作所表现出的时间观、历史观、文明观,是直接受了茅原华山的《悲壮精神》、《人类生活史》及其主办的《第三帝国》杂志的影响。李大钊早期著作所具有的茫漠及难解,也只是所依据的茅原华山著作的茫漠性及难解性的反映。李大钊的早期思想与茅原华山的奇异交错,给我们分析中国1910年代思想史提供了一个有利的暗示,即1910年代的中国知识分子卷入到同时代的世界思潮中,并与世界思潮紧紧结合在一起。     

Income earning opportunity and work performance affect donating behavior: Evidence from dictator game experiments

Using dictator game experiments, the authors investigate the effect on donation of the dictator and/or recipient working prior to the dictator donating. We focus on two issues that previous studies have not considered. First, we examine the impact on donating behavior of a difference in endowment caused by the dictator's work performance. Second, we explore donation behavior when the recipient's work does not yield income or affect the dictator's endowment, but the recipient's work performance is made known to the dictator. Experimental results indicate that donating behavior is affected not only by the dictator working, but also by the recipient working. In addition, donating behavior is affected by income level, as determined by the dictator's work performance, and is influenced by the recipient's work performance, two findings not previously reported.