Yuuki Kato

Effects of emotional cues transmitted in e-mail communication on the emotions experienced by senders and receivers

This paper focuses on communication by e-mail. An experiment was conducted to investigate the influence the degree of emotional cues transmitted during e-mail communication has on the emotions experienced by the senders and receivers. Twenty-two participants of this experiment were divided into two groups based on the degrees of emotional cues transmitted: a High group and a Low group. The emotions experienced in the e-mail communication by the High group were then compared to that of the Low group. The results of this experiment showed a tendency for unpleasant emotions such as anger and anxiety to increase when emotional cues transmitted are low (i.e., the Low group). The findings suggest that low degrees of emotional cues transmitted between senders and receivers in e-mail communication tend to cause some misunderstanding.

An Approach to Utilize Ubiquitous device for Game-based Learning Environment

Over recent years the importance of game-based learning situation has seen a remarkable growth. Existing computer-based platform that utilize the Internet so as to provide effective access to information regarding for exchange of ideas and knowledge aim to create online community, such attempts target only on traditional Internet users excluding an ongoing population of people that access World Wide Web via mobile phone. We suggest an innovative approach to an educational environment, where participants can sign up for the game by mobile phone. This paper introduces a game-based learning environment on ubiquitous devices and real-based simulation game which produces the learning environment in which it is possible for students to practice decision-making with communication via portable device such as mobile phones. And it also describes some preliminary results from the research on an example practice.

Heterogeneously Catalyzed Aerobic Oxidation of Sulfides with a BaRuO3 Nanoperovskite

A rhombohedral BaRuO3 nanoperovskite, which was synthesized by the sol-gel method using malic acid, could act as an efficient heterogeneous catalyst for the selective oxidation of various aromatic and aliphatic sulfides with molecular oxygen as the sole oxidant. BaRuO3 showed much higher catalytic activities than other catalysts, including ruthenium-based perovskite oxides, under mild reaction conditions. The catalyst could be recovered by simple filtration and reused several times without obvious loss of its high catalytic performance. The catalyst effect, 18O-labeling experiments, and kinetic and mechanistic studies showed that substrate oxidation proceeds with oxygen species caused by the solid. The crystal structure of ruthenium-based oxides is crucial to control the nature of the oxygen atoms and significantly affects their oxygen transfer reactivity. Density functional theory calculations revealed that the face-sharing octahedra in BaRuO3 likely are possible active sites in the present oxidation in sharp contrast to the corner-sharing octahedra in SrRuO3, CaRuO3, and RuO2. The superior oxygen transfer ability of BaRuO3 is also applicable to the quantitative conversion of dibenzothiophene into the corresponding sulfone and gram-scale oxidation of 4-methoxy thioanisole, in which 1.20 g (71% yield) of the analytically pure sulfoxide could be isolated.

Seleção de ICT na comunicação emocional para estudantes japoneses: focando as estratégias emocionais e diferenças de gêneros

Este artigo descreve a selecao de midia nas comunicacoes emocionais por estudantes universitarios japoneses, especialmente como eles revelam diferencas de generos. Situacoes agradaveis e desagradaveis foram preparadas e os participantes puderam selecionar: face-a-face (F2F), telefone, e-mail de celular, e-mail de PC e carta como meios de comunicacao. Alguns resultados sao apontados no campo do ICT (Information and Communications Technology). A familiaridade com os receptores foi usada como um fator de comunicacao. Para as pessoas familiarizadas, os participantes tenderam escolher a midia baseada na rapidez da replica compartilhando alegrias ou simpatia no momento da comunicacao. Tais decisoes podem ser vistas como uma estrategia emocional na selecao da midia. Participantes quiseram expor suas emocoes para as pessoas familiarizadas o quanto antes e o mais zelosamente possivel. De outro lado, pareceu que repartir emocoes nao foi algo desejado em relacao as receptores nao familiarizados.