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Fatigue and Depression from Early Postpartum to 1 Month among Postpartum Women with Mental Disorders

Open Journal of Nursing 2017年第12期7卷 1430-1438页

作者： Nozomi Detsuka Ai Kawashima rika yano Kin-ikyo Sapporo Hospital Sapporo Japan Faculty of Health Sciences Hokkaido University Sapporo Japan

Objective: This study aims to ascertain the prevalence of fatigue and depression from early postpartum to 1 month after delivery among postpartum women with mental disorders. Methods: The participants of this study were postpartum women who had delivered a child after a full-term pregnancy and were suffering from a mental disorder. We administered the Postpartum Fatigue Scale (PFS) on days 1, 3, and 4 (to multiparas), and 1, 3, and 5 (to primiparas), and 1 month after delivery to all participants. The Edinburgh Postnatal Depression Scale (EPDS), Japanese version, was also administered at the same time intervals as PFS except on day 3 after delivery. Results: A total of 7 primiparas and 9 multiparas participated in this study. The average age was 29.0 ± 7.0 years in primiparas and 32.0 ± 4.0 years in multiparas. The PFS scores were higher among the primiparas and peaked at day 1, and more than half the primiparas scored more than 9 points in EPDS. In addition, the EPDS score at 1 month had a strong correlation with the PFS subscale “mental stress situation” (r = 0.818/p = 0.047). In multiparas, the percentage of women who scored more than 9 points decreased. However, their EPDS scores at 1 month were related to the total scores of the PFS, “physical stress situation”, “mental stress situation”, and “sleep deprivation situation”. Especially, the score of “sleep deprivation situation” was higher than those during hospitalization. Conclusion: There was more fatigue 1 month after the discharge among postpartum women with mental disorders. The percentage of women whose EPDS scores were more than 9 points was high in both primiparas and multiparas. This study suggests assisting primiparas and multiparas by controlling the former’s disorder during childcare, and using family support for the latter, so that they get time to rest.

关键词： Fatigue Depression Mental Disorder Postpartum Women

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Investigation of the Burnout Stages Experienced by Nurses Working in Hospitals and Related Factors

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Open Journal of Nursing 2018年第4期8卷 257-271页

作者： Naomi Sumi Yuko Yoshida Naotaka Sugimura rika yano Faculty of Health Sciences Hokkaido University Sapporo Japan Graduate School of Health Sciences Hokkaido University Sapporo Japan

Background: The purpose of this study was to elucidate the stages of nurse burnout in hospitals (their states of emotional exhaustion and depersonalization) as well as factors related to the nurses personal characteristics and coping behaviors in order to obtain suggestions for stress and health management strategies that nurses themselves can employ. Methods: We conducted a cross-sectional study using anonymous self-administered questionnaires. The subjects were nurses employed at public hospitals with 500 beds in 3 cities in Hokkaido, Japan. The questionnaire items for burnout were those included on the Japanese Maslach Burnout Inventory (MBI), which are designed to ascertain the subjects’ emotional exhaustion, depersonalization, and sense of personal accomplishment. In addition, we used 11 items related to physical and mental stress responses on the Stress Coping Inventory and the Brief Job Stress Questionnaire to determine factors such as the nurses’ basic attributes, whether or not they worked night shifts, and their overtime hours, etc. Results: We received responses from 1461 hospital nurses. Those whose scores for both emotional exhaustion and depersonalization were the mean or above were 40.2% of those in their twenties, 35.8% of those in their thirties, and 26.8% of those in their forties or older. The results of logistic regression analysis indicated that among those in the group that scored high for both emotional exhaustion and depersonalization, the influential factors were stress score (odds ratio 1.889), twenties age group (odds ratio 1.982), thirties age group (odds ratio 1.720), coping behavior: avoidance-focused behaviors (odds ratio 1.140), and engaged in childcare (odds ratio 0.487). Similarly, when looked at by age group, being in the twenties age group and having a spouse were influential factors (odds ratio 3.114 - 4.171). Conclusion: The results of this study elucidated the fact that for hospital nurses, the burnout stage, age, state of phys

关键词： Burnout Coping Behavior Hospital Nurses Related Factors

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The State of Fatigue and Sleep among Clinical Nurses in Japan

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Open Journal of Nursing 2017年第12期7卷 1493-1501页

作者： Naomi Sumi Naotaka Sugimura Yuko Yoshida rika yano Faculty of Health Sciences Hokkaido University Sapporo Japan Graduate School of Health Sciences Hokkaido University Sapporo Japan

The objective of this study was to investigate the state of fatigue and sleep among clinical nurses in Japan. This descriptive cross-sectional study was conducted from December 2015 to January 2016. The participants were nurses who worked in public hospitals with 500 beds in the major cities and regional cities of Hokkaido. Fatigue was quantitatively assessed using the Cumulative Fatigue Symptoms Index (CFSI). Among nurses in their twenties, the rate of complaints about anxiety and decrease in vitality were high, which was replaced with complaints about irritability among nurses in their thirties. The most popular complaint among nurses in their forties was general fatigue. There was no difference in complaint ratios concerning the workplace location among nurses in their twenties and thirties, nurses in their forties working in suburban areas complained about fatigue more than their urban area. Nurses with sleep problems related to anxiety have a significantly higher complaint rate for all the eight items of CFSI compared with the nurses who do not have such problems (p < 0.001). This is an intermediate report and is part of a study that aims to develop a health management program for hospital nurses regarding fatigue and sleep.

关键词： Hospital Nurse Fatigue Cumulative Fatigue Symptoms Index Sleep

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The Influence of Sound Awareness on the Level of Sound Generated during Nursing Activity in a Pseudo-Ward

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Open Journal of Nursing 2016年第4期6卷 267-273页

作者： Tomoko Shimoda Maria Asai Rei Yoshida Ririko Aoki rika yano Faculty of Health Sciences Hokkaido University Sapporo Japan Former Department of Health Sciences School of Medicine Hokkaido University Sapporo Japan Sapporo Minami-Sanjo Hospital Sapporo Japan MEGMILK SNOW BRAND Co. Ltd. Tokyo Japan

Sound generated in a ward can be classified into 1) generated by medical staff, 2) generated by patients and their visitors, and 3) others, such as from in-hospital broadcasting microphones and nurse calls. Among these sounds, the incidence from medical staff, in particular, is reportedly high. The study objective is to investigate whether sound awareness is effective in regulating the sound environment even in a busy situation, such as in a real clinical setting, and to examine the extent to which sound awareness affects sound level. Nursing students were asked to perform a series of nursing activities in a pseudo-ward, and the changes in the sound level generated during the nursing activities with or without time and sound awareness were examined. Under varying experimental conditions, the sound and time levels associated with the nursing activities were measured in the following order: condition 1, without sound or time awareness;condition 2, with time awareness but without sound awareness;and condition 3, with both sound and time awareness. The time to perform nursing activities was longer with sound awareness. However, when aware of time only, the sound level from nursing activities rose by 2.3 dB, whereas when aware of both time and sound, the sound level dropped by 3.0 dB. With both time and sound awareness, there is a distinct drop in the sound level from nursing activities, such as wagon handling, handling of items (trays, bowls), working at the sink, and opening and closing the microwave oven door. These results suggest that even in a pseudo-clinical setting it is possible to regulate the environmental sound through the environmental sound awareness of the medical staff, resulting in a drop in the sound level generated while performing nursing activities.

关键词： Environmental Adjustment Pseudo-Ward Time Sound Awareness Nursing Activity

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Preliminary Study on the Effectiveness of Different Durations of Hot Towel Application to the Back during Bed Bathing

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Open Journal of Nursing 2017年第12期7卷 1375-1386页

作者： Inaho Shishido Yuka Yamaguchi Rie Miyata Sakiko Kutomi rika yano KKR Medical Center Sapporo Japan The University of Tokyo Hospital Tokyo Japan Elderly Support Section Fukagawa City Fukagawa Japan Toranomon Hospital Tokyo Japan Faculty of Health Sciences Hokkaido University Sapporo Japan

The purpose of this study was to determine the most effective duration of hot towel application during bed bathing, based on temporal changes in skin surface temperature, towel temperature, and subjective comfort. As a secondary objective, differences in skin surface temperature and subjective comfort for hot towel application on the back and dry towel wiping alone were evaluated. For the first objective, hot towels were applied on the lower back of 20 healthy adults, for different duration (10, 15, and 20 s), with a 10-s duration found to be the most effective. For the second objective, we compared bed bathing with hot towel application to dry wiping alone, n 21 healthy adult participants. A 10-s hot towel application increased the surface temperature of the skin (+0.5℃) and provided a perceived sensation of warmth and comfort. In contrast, dry wiping significantly decreased the surface skin temperature (-0.8℃). In conclusion, hot towel application increased skin surface temperature and improved subjective warmth and comfort during bed bathing.

关键词： Bed Bath Hot Towel Application Skin Surface Temperature

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Relationship between Sleep and Subjective Fatigue in Rotating Shift Nurses: Validation Using a Wearable Device

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Open Journal of Nursing 2018年第4期8卷 272-280页

作者： Yuko Yoshida Naomi Sumi Naotaka Sugimura Fumie Nemoto rika yano Faculty of Health Sciences Hokkaido University Sapporo Japan Graduate School of Health Sciences Hokkaido University Sapporo Japan Tokeidai Memorial Hospital Sapporo Japan

The objective of this study was to determine if sleep indicators are associated with subjective fatigue in nurses working in a rotating, two-shift system with a 16-hour night shift, using the wearable device Fitbit One. Subjective fatigue was evaluated using the Subjective Fatigue Symptom Questionnaire (SFSQ), a rating scale developed by the Working Group for Occupational Fatigue of the Japan Society for Occupational Health. Subjects were asked to continuously wear a Fitbit One to obtain the following data: time in bed (TIB), deep sleep time, length and frequency of nighttime awakening, sleep efficiency, waking time, and bed time. Nurses had a mean age and standard deviation of 33.2 ± 7.5 years and had worked as nurses for 9.8 ± 6.2 years on average. Eight nurses were in their 20s (42.1%), 5 in their 30s (26.3%), and 6 in their 40s (31.6%). All participants were female. Participants’ SFSQ scores calculated from the 9 evenings in the study period were averaged to establish a threshold for categorizing high-fatigue (HF) and low-fatigue (LF) groups. No significant differences were found between HF and LF nurses in terms of TIB, deep sleep time, nighttime awakening time or frequency, or sleep efficiency on any type of day (as classified by shift, day off, etc.). Nurses in both groups woke up significantly later on days off and on pre-night-shift days than on day-shift days. These results demonstrate the variation in sleep patterns of nurses on a rotating, two-shift system between day-shift and night-shift days.

关键词： Fatigue Rotating Shifts Nurse Sleep

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Crowd evacuation of pairs of pedestrians

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Communications in Theoretical Physics 2022年第4期74卷 97-112页

作者： Ryosuke yano Tokio Marine d R Co.ltd. 1-5-1OtemachiChiyoda-kuTokyo100-0004Japan

The crowd evacuation of pairs of pedestrians(*** consisting of a parent and a child)is numerically ***,it is assumed that all pedestrians have their own partners,and move randomly inside the bounded domain of the right-hand room as an initial *** pedestrians start their evacuations after they contact their *** evacuations are completed by the transfer of all the pairs from the right-hand room to the left-hand room through an exit.A frozen swarm tends to appear in the right-hand room as the total number of pedestrians *** frozen swarm moves without changing its form,unless it is dissolved by a strong collision with a pair of pedestrians that comes back from the left-hand room by ***,the evacuation speed also depends on the area of the Escape Zone,whereas an obstacle placed in front of an exit also changes the speed of the evacuation in accordance with the type of motion of the children.

关键词： Evacuation of paired pedestrians force chain network escape from crowd

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Ongoing Applicative Studies of Plant Thioredoxins

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Molecular Plant 2014年第1期7卷 4-13页

作者： Hiroyuki yano National Food Research Institute National Agriculture and Food Research Organization Kannondai 2-1-12 Tsukuba Ibaraki 305-8642 Japan

Studies triggered by the discovery of the function of thioredoxin （Trx） in photosynthesis have revealed its role throughout biology. Parallel biochemical and proteomic analyses have led to the identification of its numerous puta- tive targets. Recently, to verify the biological significance of these targets, in vivo studies using transformants in which Trx is overexpressed or suppressed are in progress, and the transformants themselves that are being used in such studies show their potential applicative values. Moreover, Trx＇s mitigation of allergenicity for some proteins offers promising prospects in the food industry. Practical studies based on redox regulation, once only on the horizon, are now achieving new dimensions. This short review focuses on the industrial applications of Trx studies, the current situation, and future perspectives. The putative targets obtained by the proteomics approach in comparison with in vivo observations of the transformants are also examined. Applicative studies of glutathione, a counterpart of Trx, are also discussed briefly.

关键词： allergen food redox regulation target thioredoxin.

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INTELLIGENT METATAL COMPLEXES CONTAINING N-GLYCOSIDES FORMED FROM TRIS (2-AMINOETHYL) AMINE AND ALDOSES, HAVING MOLECULAR RECOGNITION ABILITY

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Chinese Journal of Polymer Science 1998年第3期16卷 193-206页

作者： yano Shigenobu Department of Chemistry Nara Women's University Kitauoyanishimachi Nara 630-8263 Japan

Assembly of carbohydrates on nickel (Ⅱ) center by utilizing N-glycosidicbond formation with a branched amine: tris(2-aminoethyl)amine (tren), an unprecedentedchiral inversion around the metal center (Co or Mn) induced by an interaction betweensugars and sulfate anions, peroxo-bridged dinuclear cobalt (Ⅲ) complex containing N-glycoside ligands from tren and D-glucose and its reversible dioxygen binding property,and novel trimanganese complexes with a linear Mn_3 (Ⅱ, Ⅲ, Ⅱ) assemblage bridged bycarbohydrates are described.

关键词： Intelligent sugar complex Molecular recognition N-glycoside complex

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A new algorithm based on metaheuristics for data clustering

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Journal of Zhejiang University-Science A(Applied Physics & Engineering) 2010年第12期11卷 921-926页

作者： Tsutomu SHOHDOHJI Fumihiko yano Yoshiaki TOYODA Department of Computer and Information Engineering Faculty of EngineeringNippon Institute of Technology Division of Integrated Sciences J.F.Oberlin University Aoyama Gakuin University

This paper presents a new algorithm for clustering a large amount of *** improved the ant colony clustering algorithm that uses an ant’s swarm intelligence,and tried to overcome the weakness of the classical cluster analysis *** our proposed algorithm,improvements in the efficiency of an agent operation were achieved,and a new function "cluster condensation" was *** proposed algorithm is a processing method by which a cluster size is reduced by uniting similar objects and incorporating them into the cluster *** with classical cluster analysis methods,the number of steps required to complete the clustering can be suppressed to 1% or less by performing this procedure,and the dispersion of the result can also be ***,our clustering algorithm has the advantage of being possible even in a small-field cluster *** addition,the number of objects that exist in the field decreases because the cluster condenses;therefore,it becomes possible to add an object to a space that has become *** other words,first,the majority of data is put on *** are then clustered,gradually adding parts of the standby data to the clustering *** method can be adopted for a large amount of *** experiments confirmed that our proposed algorithm can theoretically applied to an unrestricted volume of data.

关键词： Metaheuristics Ant colony clustering Data clustering Swarm intelligence

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