Shinjuku, Japan
Shinjuku, Japan

Mejiro University is a private university in Shinjuku, Tokyo, Japan. The predecessor of the school was founded 1918 in Kumamoto, Kumamoto. It was chartered as a women's junior college in 1963. In 1994 it opened as a four-year college. The school also has facilities in Saitama, Saitama Prefecture. Wikipedia.

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Nakano W.,Tsukuba International University | Fukaya T.,Tsukuba International University | Kanai Y.,Ibaraki Prefectural University of Health Sciences | Akizuki K.,Mejiro University | Ohashi Y.,Ibaraki Prefectural University of Health Sciences
Gait and Posture | Year: 2015

If an obstacle suddenly appears during walking, either the crossing step can be lengthened or the precrossing step shortened to avoid the obstacle. We investigated the effects of temporal constraints on dynamic stability during step adjustments. Twelve healthy young adults avoided a virtual white planar obstacle by lengthening or shortening their steps under free or constrained conditions. When constrained, participants had only one step to avoid the obstacle. The results indicated that center of mass (COM) displacement in the mediolateral (ML) direction and the COM velocity toward the swing-leg side during the crossing step were significantly increased in the long-constraint compared with the long-free condition. Consequently, the extrapolated COM (XcoM) position at the swing foot contact was also located further toward the swing-leg side. However, the distances between the XcoM and base of support (BOS) at the swing foot contact in the ML direction was unchanged because of greater lateral foot placement. In the anteriorposterior (AP) direction, temporal constraints led to greater AP COM displacement. The XcoM-BOS distance in the AP direction was unchanged in the long-constraint condition because of greater step length. However, the value became negative in the short-constraint condition, violating the conditions for dynamic stability, because step length adjustments were obstructed by the spatial constraints of the obstacles. These results suggest that temporal constraints affect postural stability in the AP and ML directions during step adjustments. AP and ML stability at swing foot contact are maintained through adjustments of step length and lateral foot placement, respectively. © 2015 Elsevier B.V.

Essau C.A.,Roehampton University | Lewinsohn P.M.,Oregon Research Institute | Seeley J.R.,Oregon Research Institute | Sasagawa S.,Mejiro University
Journal of Affective Disorders | Year: 2010

Background: There is ample evidence for female preponderance of major depressive disorder (MDD) in adolescence and adulthood. This study examined gender differences in the developmental course (i.e., incidence, duration, number of depressive episodes, and recovery rates) of MDD in non-referred adolescents and young adults. Methods: Data from the Oregon Adolescent Depression Project were used to examine gender differences in the developmental course of MDD. Gender differences in the onset, duration, number of depressive episode and rate of recovery from MDD were examined in a population-based sample of the same individuals (participants: N = 773) during adolescence (age 14 to 17) and at age 30. Results: Compared to males, females have higher incidence rates of MDD and had a more chronic course. Difference in duration of depressive episodes is marginally significant between male and female, with females having longer episodes. Lower onset age correlates significantly with more number of episodes in both genders; however, lower onset age predicts a worse course of depression only in females. Limitations: The sample was from a single region of the country and consisted mostly of White adolescents. Conclusions: Childhood depression may be a more serious risk factor for girls than for boys. © 2010 Elsevier B.V. All rights reserved.

Nakamura H.,Mejiro University | Nakamura H.,Tokyo Institute of Technology | Tasaki L.,Mejiro University | Kanoh D.,Mejiro University | And 3 more authors.
Dalton Transactions | Year: 2014

Diaryl-substituted ortho-carboranes 1 were synthesized from the corresponding alkynes by decaborane coupling under microwave-irradiated conditions with a combination of N,N-dimethylaniline and chlorobenzene. Among the compounds synthesized, 1a and 1d exhibited significant inhibition of hypoxia-induced HIF-1 transcriptional activity. Both compounds similarly suppressed hypoxia-induced HIF-1α accumulation in a concentration- dependent manner without affecting HIF-1α mRNA expression. © 2014 The Royal Society of Chemistry.

Chang Y.-T.,Mejiro University
Frontiers in Statistical Quality Control 9 | Year: 2010

In this paper an admissible estimator of the scale parameter of a Gamma distribution is derived, which is bounded above. Next, the simultaneous estimation of p scale parameters of Gamma distributions are considered that are bounded above. Moreover, simultaneous estimation of two ordered scale parameters of two Gamma distributions is investigated in terms of the mean square error (MSE). Finally, some simulation results are given for illustrating the improvement obtained with the new estimators, when compared with the usual estimators © Springer-Verlag Berlin Heidelberg 2010.

Ajimi A.,Mejiro University
[Nihon kōshū eisei zasshi] Japanese journal of public health | Year: 2012

The objective of this study was to shed light on (1) the extent to which primary caregivers of patients with brain damage feel nursing-care burden, and (2) the relationship between such burden and other attributes in a cross-sectional manner. We conducted an anonymous questionnaire survey of primary caregivers of young patients with brain damage. The survey was conducted between November 2008 and March 2009. The number of valid responses was 53 (response rate 56%). To assess burden of caregivers, we used the Short Version of the Japanese Version of the Zarit Caregiver Burden Interview (J-ZBI_8). With regard to burden felt by primary caregivers "concerns about excretion" and "problematic behavior" were stressed. Individuals who were less than 50 in age most strongly felt burden. Moreover, burden was greater for spouses than for guardians. In order to reduce the burden of caregivers in case of primary caregivers, rehabilitation concerning young patients with brain damage and efforts to enhance their capabilities are important. In addition, it is also necessary to provide social resources so that primary caregivers can rely on other persons without worry.

Essau C.A.,Roehampton University | Sasagawa S.,Mejiro University | Anastassiou-Hadjicharalambous X.,University of Nicosia | Guzman B.O.,Autonomous University of Barcelona | Ollendick T.H.,Virginia Polytechnic Institute and State University
Journal of Anxiety Disorders | Year: 2011

This study examined the factor structure, reliability, and validity of the original Spence Child Anxiety Scale (SCAS) and its four translations (German, Cypriot Greek, Swedish, Italian). A total of 2558 adolescents from five European countries (Germany. = 495; Cyprus. = 611; UK. = 469; Sweden. = 484; Italy. = 499), ages 12-17 years, participated in the study. In addition to the SCAS, all participants completed the Strengths and Difficulties Questionnaire, a measure of general difficulties and positive attributes. The internal consistency and validity (convergent and discriminant) of the SCAS were excellent. Multiple group confirmatory factor analysis provided strong support for the generalizability of a 6-factor inter-correlated model across five European countries. Adolescents in the UK had significantly higher anxiety levels than adolescents in four other European countries. Our findings suggest that the SCAS is suitable for assessing anxiety disorder symptoms in adolescents in Germany, the UK, Cyprus, Sweden, and in Italy. © 2010 Elsevier Ltd.

Akizuki K.,Mejiro University | Ohashi Y.,Ibaraki Prefectural University of Health Sciences
Human Movement Science | Year: 2015

The relationship between task difficulty and learning benefit was examined, as was the measurability of task difficulty. Participants were required to learn a postural control task on an unstable surface at one of four different task difficulty levels. Results from the retention test showed an inverted-U relationship between task difficulty during acquisition and motor learning. The second-highest level of task difficulty was the most effective for motor learning, while learning was delayed at the most and least difficult levels. Additionally, the results indicate that salivary α-amylase and the performance dimension of the National Aeronautics and Space Administration-Task Load Index (NASA-TLX) are useful indices of task difficulty. Our findings suggested that instructors may be able to adjust task difficulty based on salivary α-amylase and the performance dimension of the NASA-TLX to enhance learning. © 2015 Elsevier B.V.

Harada T.,Mejiro University
Nihon Arukōru Yakubutsu Igakkai zasshi = Japanese journal of alcohol studies & drug dependence | Year: 2012

Methamphetamine use is subject to severe criminal punishment in Japan and approximately 22% of the prison population were confined for violations of the stimulants control law in 2009. Although the high recidivism rate is also a problem, no systematic treatment has been conducted in prison. Therefore, the development of the prison-based treatment program is necessary. In this study, the prison-based program was developed based on the Matrix Model, which is the cognitive-behavioral treatment for amphetamine users developed in the US. The program was tailored in order to address the treatment needs of the Japanese amphetamine users considering Japanese culture and the prison climate. The randomized controlled trial was conducted in order to evaluate the effectiveness the Japanese Matrix program (J-MAT). 60 prisoners were randomly assigned either to the J-MAT or the control groups and those who in the J-MAT group received the program once a week for 12 weeks. The abstinence rate could not be used as the outcome measure because the participants could not be followed after the release from prison due to the legal reasons. Therefore, the psychological variables including coping skills, self-efficacy and motivation were used as outcome measures, which are considered as the important predictive factors of abstinence. 93.3% of the J-MAT participants completed the program. The coping skills of the treated prisoners were improved significantly after treatment comparing to the control (F (1, 27) = 9.03, p < .001), however other psychological variables were not significantly improved. The results suggested the effectiveness of the J-MAT because both treatment completion and coping skills are powerful predictors of abstinence. Further study is required and in which the participants should be followed after the completion of treatment in order to compare the relapse rates between the groups and to measure the long-term treatment gain.

Saito K.,Mejiro University | Akiyama T.,Mejiro University
Chemical Communications | Year: 2012

The chiral phosphoric acid-catalyzed enantioselective reductive amination of aliphatic ketones with aromatic amines was successfully achieved by the use of benzothiazoline as the hydrogen donor. Corresponding chiral aliphatic amines were obtained with excellent enantioselectivities. This journal is © The Royal Society of Chemistry 2012.

Essau C.A.,Roehampton University | Sasagawa S.,Mejiro University | Ollendick T.H.,Virginia Polytechnic Institute and State University
Journal of Anxiety Disorders | Year: 2010

This study examined the factor structure, reliability, and validity of the German translation of the Childhood Anxiety Sensitivity Index (CASI). A total of 1292 adolescents participated in the study. Analyses using the Schmid-Leiman solution showed the CASI to have one higher order factor and three orthogonal lower order factors. CASI scores correlated significantly with anxiety symptoms and with general difficulties. Hierarchical multiple regression showed CASI to make a significant contribution in predicting anxiety even after controlling for variance due to general difficulties, thus giving further support to the incremental validity of the CASI. The CASI is a potentially useful measure to include in longitudinal studies that examine the development of childhood and adolescent anxiety disorders. © 2009 Elsevier Ltd. All rights reserved.

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