Itabashi-ku, Japan
Itabashi-ku, Japan

Daito Bunka University is a medium-sized four-year university with two campuses: one at Itabashi in Tokyo, and the other at Higashi Matsuyama in Saitama, Japan. The sports program is strong in rugby and marathon running, with the Ekiden team coming 4th in the prestigious January 2009 New Year Hakone Ekiden. Daito Bunka focuses primarily on cultural arts and humanities and is also known as one of the top calligraphy schools in the nation, and one of the few universities in Japan to teach Arabic and Urdu. Wikipedia.

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Yoneyama K.,Daito Bunka University | Munson B.,University of Minnesota
Journal of the Acoustical Society of America | Year: 2017

Whether or not the influence of listeners' language proficiency on L2 speech recognition was affected by the structure of the lexicon was examined. This specific experiment examined the effect of word frequency (WF) and phonological neighborhood density (PND) on word recognition in native speakers of English and second-language (L2) speakers of English whose first language was Japanese. The stimuli included English words produced by a native speaker of English and English words produced by a native speaker of Japanese (i.e., with Japanese-accented English). The experiment was inspired by the finding of Imai, Flege, and Walley [(2005). J. Acoust. Soc. Am. 117, 896-907] that the influence of talker accent on speech intelligibility for L2 learners of English whose L1 is Spanish varies as a function of words' PND. In the currently study, significant interactions between stimulus accentedness and listener group on the accuracy and speed of spoken word recognition were found, as were significant effects of PND and WF on word-recognition accuracy. However, no significant three-way interaction among stimulus talker, listener group, and PND on either measure was found. Results are discussed in light of recent findings on cross-linguistic differences in the nature of the effects of PND on L2 phonological and lexical processing. © 2017 Acoustical Society of America.

Katsumata H.,Daito Bunka University | Russell D.M.,Old Dominion University
Experimental Brain Research | Year: 2012

Debate exists as to whether humans use prospective or predictive control to intercept an object falling under gravity (Baurès et al. in Vis Res 47:2982-2991, 2007; Zago et al. in Vis Res 48:1532-1538, 2008). Prospective control involves using continuous information to regulate action. T, the ratio of the size of the gap to the rate of gap closure, has been proposed as the information used in guiding interceptive actions prospectively (Lee in Ecol Psychol 10:221-250, 1998). This form of control is expected to generate movement modulation, where variability decreases over the course of an action based upon more accurate timing information. In contrast, predictive control assumes that a pre-programmed movement is triggered at an appropriate criterion timing variable. For a falling object it is commonly argued that an internal model of gravitational acceleration is used to predict the motion of the object and determine movement initiation. This form of control predicts fixed duration movements initiated at consistent time-to-contact (TTC), either across conditions (constant criterion operational timing) or within conditions (variable criterion operational timing). The current study sought to test predictive and prospective control hypotheses by disrupting continuous visual information of a falling ball and examining consistency in movement initiation and duration, and evidence for movement modulation.Participants (n = 12) batted a ball dropped from three different heights (1, 1.3 and 1.5 m), under both full-vision and partial occlusion conditions. In the occlusion condition, only the initial ball drop and the final 200 ms of ball flight to the interception point could be observed. The initiation of the swing did not occur at a consistent TTC, T, or any other timing variable across drop heights, in contrast with previous research. However, movement onset was not impacted by occluding the ball flight for 280-380 ms. This finding indicates that humans did not need to be continuously coupled to vision of the ball to initiate the swing accurately, but instead could use predictive control based on acceleration timing information (TTC2). However, other results provide evidence for movement modulation, a characteristic of prospective control. Strong correlations between movement initiation and duration and reduced timing variability from swing onset to arrival at the interception point, both support compensatory variability. An analysis of modulation within the swing revealed that early in the swing, the movement acceleration was strongly correlated to the required mean velocity at swing onset and that later in the swing, the movement acceleration was again strongly correlated with the current required mean velocity. Rather than a consistent movement initiated at the same time, these findings show that the swing was variable but modulated for meeting the demands of each trial. A prospective model of coupling Tbat-ball with Tball-target was found to provide a very strong linear fit for an average of 69% of the movement duration. These findings provide evidence for predictive control based on TTC2 information in initiating the swing and prospective control based on T in guiding the bat to intercept the ball. © Springer-Verlag 2011.

Suka M.,Jikei University School of Medicine | Yamauchi T.,National Institute of Mental Health | Sugimori H.,Daito Bunka University
BMC Public Health | Year: 2016

Background: Failure and delay in initial treatment contact for mental disorders has been recognized as an important public health problem. According to the concept of mental health literacy, recognition of symptoms is crucial to making decisions to seek or not seek professional help. The aims of this study were to investigate the types of health problems for which Japanese adults intend to seek help, their preferred sources of help, and the factors associated with help-seeking intentions. Methods: A cross-sectional web-based survey was conducted in June 2014 among Japanese adults aged 20-59 years. A total of 3308 eligible respondents were included in this study. Help-seeking intentions were measured by listing potential sources of help (including 'would not receive help') and asking which ones would be chosen in four health conditions indicated by irritability, dizziness, insomnia, and depressed mood, respectively. Results: In the case of dizziness, 85.9 % of the participants reported a positive help-seeking intention and 42.7 % gave first priority to seeking help from formal sources. These percentages were smaller in the cases of insomnia (75.4 and 25.0 %), depressed mood (74.9 and 18.7 %), and irritability (72.9 and 0.9 %). Multiple logistic regression analysis revealed that the factors significantly associated with help-seeking intentions were almost identical across the four health problems. In particular, perception of family and friends regarding help-seeking, psychiatric history, contact with people with mental illness, better health literacy, and neighborhood communicativeness were significantly associated with the overall help-seeking intention and also the help-seeking intention from formal sources for all the problems of dizziness, insomnia, and depressed mood. Conclusions: The majority of participants indicated their intentions to seek help, but psychological problems (insomnia and depressed mood) were less likely to induce help-seeking intentions than a physical problem (dizziness). Besides developing health literacy skills, community-based interventions for creating a friendly approachable atmosphere and facilitating daily interactions with family, friends, and neighbors may be worth considering as a possible public health strategy for encouraging help-seeking whether for psychological or physical problems. © 2016 Suka et al.

Suka M.,Jikei University School of Medicine | Yamauchi T.,National Institute of Mental Health | Sugimori H.,Daito Bunka University
BMJ Open | Year: 2015

Objective: Encouraging help-seeking for mental illness is essential for prevention of suicide. This study examined the relationship between individual characteristics, neighbourhood contexts and helpseeking intentions for mental illness for the purpose of elucidating the role of neighbourhood in the helpseeking process. Design, setting and participants: A cross-sectional web-based survey was conducted among Japanese adults aged 20-59 years in June 2014. Eligible respondents who did not have a serious health condition were included in this study (n=3308). Main outcome measures: Participants were asked how likely they would be to seek help from someone close to them (informal help) and medical professionals (formal help), respectively, if they were suffering from serious mental illness. Path analysis with structural equation modelling was performed to represent plausible connections between individual characteristics, neighbourhood contexts, and informal and formal help-seeking intentions. Results: The acceptable fitting model indicated that those who had a tendency to consult about everyday affairs were significantly more likely to express an informal help-seeking intention that was directly associated with a formal help-seeking intention. Those living in a communicative neighbourhood, where neighbours say hello whenever they pass each other, were significantly more likely to express informal and formal help-seeking intentions. Those living in a supportive neighbourhood, where neighbours work together to solve neighbourhood problems, were significantly more likely to express an informal helpseeking intention. Adequate health literacy was directly associated with informal and formal help-seeking intentions, along with having an indirect effect on the formal help-seeking intention through developed positive perception of professional help. Conclusions: The results of this study bear out the hypothesis that neighbourhood context contributes to help-seeking intentions for mental illness. Living in a neighbourhood with a communicative atmosphere and having adequate health literacy were acknowledged as possible facilitating factors for informal and formal help-seeking for mental illness.

Sunamura T.,2 9 517 Namiki | Aoki H.,Daito Bunka University
Earth Surface Processes and Landforms | Year: 2011

To describe temporal change in tafone development, an S-shaped curve equation is proposed: Z=Zc [1-(n+1) exp (- β t)+n exp (- (1+1/n) β t)], where Z is observed tafone depth, Zc is ultimate tafone depth, t is time, and n and β are constants. The applicability of this model is examined using tafone data selected from seven sites, which are categorized into three different salt-weathering environments: a spray/splash-dominant (occasionally wave-affected) supra-tidal zone, aerosol-affected coastal regions, and inland desert areas. The results indicate that the equation can well describe tafone development in each of these environments. An investigation based on the values of n and β, determined through a best fit of the equation to the data, suggests that n characterizes site-specific environmental conditions and β reflects the magnitude of factors controlling the recession mechanism of tafone surfaces. It is found that (1) the maximum rate of tafone growth dramatically decreases from supra-tidal, through coastal, to desert environments, and (2) the growing mode of tafoni is different depending on the environmental settings. The erosional force to facilitate the development of tafoni at supra-tidal sites is estimated to be about 400 times greater than that in the general coastal area. © 2011 John Wiley & Sons, Ltd.

Oshiro S.,Daito Bunka University | Morioka M.S.,University of Tokyo | Kikuchi M.,Tokyo Medical and Dental University
Advances in Pharmacological Sciences | Year: 2011

Dysregulation of iron metabolism has been observed in patients with neurodegenerative diseases (NDs). Utilization of several importers and exporters for iron transport in brain cells helps maintain iron homeostasis. Dysregulation of iron homeostasis leads to the production of neurotoxic substances and reactive oxygen species, resulting in iron-induced oxidative stress. In Alzheimer's disease (AD) and Parkinson's disease (PD), circumstantial evidence has shown that dysregulation of brain iron homeostasis leads to abnormal iron accumulation. Several genetic studies have revealed mutations in genes associated with increased iron uptake, increased oxidative stress, and an altered inflammatory response in amyotrophic lateral sclerosis (ALS). Here, we review the recent findings on brain iron metabolism in common NDs, such as AD, PD, and ALS. We also summarize the conventional and novel types of iron chelators, which can successfully decrease excess iron accumulation in brain lesions. For example, iron-chelating drugs have neuroprotective effects, preventing neural apoptosis, and activate cellular protective pathways against oxidative stress. Glial cells also protect neurons by secreting antioxidants and antiapoptotic substances. These new findings of experimental and clinical studies may provide a scientific foundation for advances in drug development for NDs. Copyright © 2011 Satoru Oshiro et al.

Katsumata H.,Daito Bunka University
Journal of Motor Behavior | Year: 2014

Given that visual estimation of an object's size is affected by an illusory figure, the present study investigates the Ebbinghaus size-illusion effect on visuomotor performance within different preview durations for viewing an object (no preview, 300, 700, 1500, and 3000 ms) before initiating the movement. Twenty participants performed the following actions: (a) grasping the object and (b) matching the perceived object size with the finger aperture configuration as in the grasping task. The illusion affected the grasping aperture size only in the no- and 300-ms preview durations, while the matching aperture was affected across all preview conditions. These results suggest that the preview duration influences the size illusion to affect the grasping performance, and subjects adopt different visuomotor processes, depending on preview duration. Copyright © Taylor & Francis Group, LLC.

Endo G.,Daito Bunka University
International Review of Retail, Distribution and Consumer Research | Year: 2014

New overseas retail formats have been entering emerging markets since the late 1990s. Accordingly, research on the advance of transnational retailers into emerging markets has recently flourished, and Thailand, one of the most popular host countries for transnational retailers, has often been examined as a case study. Many of these studies clarify the retail internationalization process and conclude that the new formats are driving the host countries' traditional distribution system toward a fundamental change. Although these studies consider the host countries' circumstances, they do not necessarily pay sufficient attention to specific characteristics of those host countries. In case studies of Thailand, the specific roles of intermediaries throughout the entire retail and distribution system are commonly overlooked. This paper argues that intermediaries continue to play an important role in Thailand's distribution systems, especially in the system of fresh vegetable distribution. This study first explains why earlier studies often attached less importance to the examination of intermediate distribution systems, despite the necessity of considering the roles of intermediaries for a deeper understanding of the impact of new retail formats on the host countries' distribution system as a whole. After discussing the key roles of intermediaries in Thailand's vegetable distribution system, this paper concludes that because modern retailers' involvement, particularly that of transnational retailers, at the agricultural production stage is still limited in Thailand, they often rely on intermediate distributors, such as local assembling wholesalers, coordinator-type intermediaries, and wholesale markets, for the intermediate distribution process. © 2014, © 2014 Taylor & Francis.

Masuya S.,Daito Bunka University
Smart Innovation, Systems and Technologies | Year: 2016

In this paper, we study cooperative TU games in which the worths of some coalitions are not known.We investigate superadditive games and the Shapley values on a class of cooperative games under incomplete information.We show that the set of the superadditive complete games and the set of the Shapley values which can be obtained from a given incomplete game are polytopes and propose selection methods of the one-point solution from the set of the Shapley values. © Springer International Publishing Switzerland 2016.

Doi R.,Daito Bunka University
International Agrophysics | Year: 2016

The effects of a pseudo-colour imaging method were investigated by discriminating among similar agricultural plots in remote sensing images acquired using the Airborne Visible/Infrared Imaging Spectrometer (Indiana, USA) and the Landsat 7 satellite (Fergana, Uzbekistan), and that provided by GoogleEarth (Toyama, Japan). From each dataset, red (R)-green (G)-R-G-blue yellow (RGrgbyB), and RGrgby-1B pseudo-colour images were prepared. From each, cyan, magenta, yellow, key black, L∗, a∗, and b∗ derivative grayscale images were generated. In the Airborne Visible/Infrared Imaging Spectrometer image, pixels were selected for corn no tillage (29 pixels), corn minimum tillage (27), and soybean (34) plots. Likewise, in the Landsat 7 image, pixels representing corn (73 pixels), cotton (110), and wheat (112) plots were selected, and in the GoogleEarth image, those representing soybean (118 pixels) and rice (151) were selected. When the 14 derivative grayscale images were used together with an RGB yellow grayscale image, the overall classification accuracy improved from 74 to 94% (Airborne Visible/Infrared Imaging Spectrometer), 64 to 83% (Landsat), or 77 to 90% (GoogleEarth). As an indicator of discriminatory power, the kappa significance improved 1018-fold (Airborne Visible/Infrared Imaging Spectrometer) or greater. The derivative grayscale images were found to increase the dimensionality and quantity of data. Herein, the details of the increases in dimensionality and quantity are further analysed and discussed. © 2016 Ryoichi Doi, published by De Gruyter Open 2016.

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