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Open Journal of Obstetrics and Gynecology 2017年第2期7卷 155-166页

作者： Mihyon Song Hiroshi Ishii Masahiro Toda Takuji Tomimatsu Hironobu Katsuyama Yuichiro Nakai koichiro shimoya Department of Obstetrics and Gynecology Kawasaki Medical School Kurashiki City Japan Department of Foods and Human Nutrition Notre Dame Seishin University Okayama City Japan Department of Public Health Kawasaki Medical School Kurashiki City Japan

Aim: The aim of the present study was to examine associations among maternal stress level, general health, mother to infant bonding, maternal depression level, and mode of delivery. Methods: Mothers who delivered a single baby at term were recruited with a total 435 mothers participating in the study. Outcome measures: Data were collected 6 months after delivery using General Health Questionnaire (GHQ-28), Mother-to-Infant Bonding Scale (MIBS), Edinburgh Postnatal Depression Scale (EPDS) as well as socio-demographic and medical information at 6 months. Additionally, salivary cortisol and chromogranin levels were determined. Results: The proportion of breast-feeding mothers in the vaginal delivery group (51.4%) was significantly higher than that of the cesarean section group (24%). GHQ-28 scores were significantly related to EPDS scores and MIBS scores (P Conclusion: Maternal general health is associated with maternal psychological health. These results suggest that the support of maternal health is important to maintain maternal psychological status and bonding to infants. Because EPDS scores were significantly worse in the planned cesarean section group (4.2 ± 3.3), careful management is needed of mothers who deliver by planned cesarean section.

关键词： General Health Questionnaire (GHQ-28) Mother-to-Infant Bonding Scale (MIBS) Edinburgh Postnatal Depression Scale (EPDS) Salivary Cortisol Salivary Chromogranin A

A new electric field mill array with each of the mill’s rotor controlled precisely by a GPS module:Equipment and initial results

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Earth and Planetary Physics 2024年第2期8卷 423-435页

作者： Kozo Yamashita Hironobu Fujisaka DaoHong Wang Hiroyuki Iwasaki Kazuo Yamamoto koichiro Michimoto Masashi Hayakawa Department of Production Systems Engineering and Sciences Komatsu UniversityNu 1-3 Shicho-machiKomatsuIshikawa 923-8511Japan Fujisaka Technology Office 1058-5 Yoshizawa-choOhta-shiGunma 373-0019Japan Department of Electrical Electronic and Computer EngineeringGifu University1-1 YanagidoGifu CityGifu 501-1193Japan Cooperative Faculty of Education Gunma University4-2-Aramaki-machiMaebashiGunma 371-8510Japan Department of Electrical and Electronic Engineering Chubu University1200 Matsumoto-choKasugaiAichi 487-8501Japan Independent Researcher Kosenba Town 2-44-11-406Kawagoe CitySaitama350-0036Japan Advanced Wireless&Communications Research Center The University of Electro-Communications1-5-1 ChofugaokaChofuTokyo 182-8585Japan

We have newly designed an electrostatic sensor,called an electric field mill(EFM),to simplify the estimation of the charge position and charge amount transferred by lightning *** is necessary for this remote estimation of the transferred charge to measure electric field changes caused by charge loss at the time of a lightning strike at multiple *** multiple-station measurement of electric field changes,not only speed but also phase for exposure and shielding of the sensing plates inside each EFM of the array should be synchronized to maintain the sensitivities of the deployed ***,there is no such EFM with specified speed and phase control performance of the rotary ***,we developed a new EFM in which the rotary mechanism was controlled consistently to within 3%error by a GPS *** EFMs had been distributed in the Hokuriku area of Japan during the winter season of 2022-2023 for a test *** we describe the design and a simple calibration method for our new EFM *** analysis method based on the assumption of a simple monopole charge structure is also *** validation,locations of assumed point charges were compared with three-dimensional lightning mapping data estimated by radio observations in the MF-HF *** results indicated the validity to estimate transferred charge amounts and positions of winter cloud-to-ground lightning discharges with our new EFM array.

关键词： lightning electrostatic field electric field mill electric field change

Low skeletal muscle mass and high visceral adiposity are associated with recurrence of acute cholecystitis after conservative management:A propensity score-matched cohort study

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Hepatobiliary & Pancreatic Diseases International 2024年第1期23卷 64-70页

作者： Yudai Koya Michihiko Shibata Yuki Maruno Yoshitaka Sakamoto Shinji Oe koichiro Miyagawa Yuichi Honma Masaru Harada Department of Gastroenterology Kyushu Rosai HospitalMoji Medical Center3-1 HigashiminatomachiMoji-kuKitakyushu 801-8502Japan Third Department of Internal Medicine School of MedicineUniversity of Occupational and Environmental HealthKitakyushu 807-8555Japan Department of Surgery Kyushu Rosai Hospital Moji Medical CenterKitakyushu 801-8502Japan

Background:Recurrent acute cholecystitis(RAC)can occur after non-surgical treatment for acute cholecystitis(AC),and can be more severe in comparison to the first episode of *** skeletal muscle mass or adiposity have various effects in several *** aimed to clarify the relationship between RAC and body ***:Patients with AC who were treated at our hospital between January 2011 and March 2022 were *** psoas muscle mass and adipose tissue area at the third lumbar level were measured using computed tomography at the first episode of *** areas were divided by height to obtain the psoas muscle mass index(PMI)and subcutaneous/visceral adipose tissue index(SATI/VATI).According to median VATI,SATI and PMI values by sex,patients were divided into the high and low PMI *** performed propensity score matching to eliminate the baseline differences between the high PMI and low PMI groups and analyzed the cumulative incidence and predictors of ***:The entire cohort was divided into the high PMI(n=81)and low PMI(n=80)*** the propensity score-matched cohort there were 57 patients in each *** Kaplan-Meier analysis,the low PMI group and the high VATI group had a significantly higher cumulative incidence of RAC than their counterparts(log-rank P=0.001 and 0.015,respectively).In a multivariate Cox regression analysis,the hazard ratios of low PMI and low VATI for RAC were 5.250(95%confidence interval 1.083-25.450,P=0.039)and 0.158(95%confidence interval:0.026-0.937,P=0.042),***:Low skeletal muscle mass and high visceral adiposity were independent risk factors for RAC.

关键词： Acute cholecystitis Low skeletal muscle mass Recurrent acute cholecystitis Sarcopenia Visceral adiposity

Geochemistry of Rare Earth Elements(REE) in the Weathered Crusts from the Granitic Rocks in Sulawesi Island, Indonesia

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Journal of Earth Science 2014年第3期25卷 460-472页

作者： Adi Maulana Kotaro Yonezu koichiro Watanabe Department of Geology Engineering Faculty of Engineering Hasanuddin University Department of Earth Resources Engineering Kyushu University

We report for the first time the geochemistry of rare earth elements（REE） in the weathered crusts of I-type and calc-alkaline to high-K（shoshonitic） granitic rocks at Mamasa and Palu region, Sulawesi Island, Indonesia. The weathered crusts can be divided into horizon A（lateritic profile） and B（weathered horizon）. Quartz, albite, kaolinite, halloysite and montmorrilonite prevail in the weathered crust. Both weathered profiles show that the total REE increased from the parent rocks to the horizon B but significantly decrease toward the upper part（horizon A）. LREE are enriched toward the upper part of the profile as shown by La/YbN value. However, HREE concentrations are high in horizon B1 in Palu profile. The total REE content of the weathered crust are relatively elevated compared to the parent rocks, particularly in the lower part of horizon B in Mamasa profile and in horizon B2 in Palu profile. This suggests that REE-bearing accessory minerals may be resistant against weathering and may remain as residual phase in the weathered crusts. The normalized isocon diagram shows that the mass balance of major and REE components between each horizon in Mamasa and Palu weathering profile are different. The positive Ce anomaly in the horizon A of Mamasa profile indicated that Ce is rapidly precipitated during weathering and retain at the upper soil horizon.

关键词： rare earth element geochemistry weathered crust granitic rock Sulawesi Indonesia.

Does Foreign Direct Investment Affect the Growth of Local Firms? The Case of China's Electrical and Electronics Industry

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China & World Economy 2012年第2期20卷 98-120页

作者： koichiro Kimura Research Fellow Institute of Developing Economies(IDE)ChibaJapan.

Does foreign direct investment （FDI） into developing countries affect the growth of local firms in host countries？ Using a dataset of 38 sectors in China ＇s electrical and electronics industry, in this paper, we analyze whether FDI has a positive effect on loeal firms, with technology spillovers, added value and increasing total faetor productivity, or a negative, market stealing, effect. Estimating the relationship between growth of local firms and investment offoreign firms, our results show that FDI is likely to have a negative impact on the growth of local firms in sectors with large disparities in technology and less experience in business. Therefore, local firms lacking in technology need to find markets with no competition from foreign firms or determine strategies to compensate technology disparities.

关键词： China electrical and electronics industry foreign direct investment technology disparity technology spillover total factor productivity

Tensile force correction calculation method for prestressed construction of tension structures

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Journal of Zhejiang University-Science A(Applied Physics & Engineering) 2008年第9期9卷 1201-1207页

作者： Xin ZHUO Guo-fa ZHANG koichiro ISHIKAWA Dao-an LOU Department of Civtl Engmeermg Zhejiang University Hangzhou 310027 China Department of Architecture and Civil Engineering Fukui University Fukui 910-8507 Japan Zhejiang Zhancheng Construction Group Co. Ltd. Hangzhou 310005 China

Factors such as errors during the fabrication or construction of structural components and errors of calculation as- sumption or calculation methods, are very likely to cause serious deviation of many strings’ actual prestressing forces from the designed values during tension structure construction or service period, and further to threaten the safety and reliability of the structure. Aiming at relatively large errors of the prestressing force of strings in a tension structure construction or service period, this paper proposes a new finite element method (FEM), the "tensile force correction calculation method". Based on the measured prestressing forces of the strings, this new method applies the structure from the zero prestressing force status approach to the measured prestressing force status for the first phase, and from the measured prestressing force status approach to the designed prestressing force status for the second phase. The construction tensile force correction value for each string can be obtained by multi-iteration with FEM. Using the results of calculation, the strings’ tensile force correction by group and in batch will be methodic, simple and accurate. This new calculation method can be applied to the prestressed correction construction simulation analysis for tension structures.

关键词： Tension structures Prestressed construction High precision

Genesis of the Zhaokalong Fe-Cu Polymetallic Deposit at Yushu, China: Evidence from Ore Geochemistry and Fluid Inclusions

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Acta Geologica Sinica(English Edition) 2013年第2期87卷 486-500页

作者： LI Huan XI Xiaoshuang WU Chengming koichiro WATANABE Department of Earth Resources Engineering Faculty of Engineering Kyushu University MOE Key Laboratory of Non-ferrous Metal Ore Forecast School of Geosciences and Info-physics Central South University

The ore types of the Zhaokalong Fe-Cu deposit are divided into two categories： sulfide-type and oxide-type. The sulfide-type ore include siderite ore, galena-sphalerite ore and chalcopyrite ore, whereas the oxide-type ore include magnetite ore and hematite ore. The ore textures and structures indicate that the Zhaokalong deposit is of the sedimentary-exhalative mineralization type. Geochemical analyses show that the two ore types have a high As, Sb, Mn, Co and Ni content. The REE patterns reveal an enrichment of the LREE compared to the HREE. Isotopic analysis of siderite ore reveal that the j13CpDB ranges from -2.01 to 3.34 （%0） whereas the JISOsMow ranges from 6.96 to 18.95 （%0）. The fluid inclusion microthermometry results indicate that homogenization temperatures of fluid inclusions in quartz range from 131 to 181~C, with salinity values of 1.06 to 8.04 wt% NaCI eq. The mineralizing fluid therefore belongs to the low temperature - low salinity system, with a mineralizing solution of a CO2-Ca2＋（Na＋, K＋）-SO42- （F-, CI--H20 system. The geochemical results and fluid inclusion data provide additional evidence that the Zhaokalong deposit is a sedex-type deposit that experienced two stages of mineralization. The sulfide mineralization probably occurred first, during the sedimentary exhalative process, as exhibited by the abundance of marine materials associated with the sulfide ores, indicating a higher temperature and relatively deoxidized oceanic depositional environment. After the main exhalative stage, hydrothermal activity was superimposed to the sulfide mineralization. The later stage oxide mineralization occurred in a low temperature and relatively oxidized environment, in which magmatic fluid circulation was dominant.

关键词： exhalative sedimentary deposit (SEDEX) fluid inclusions ore geochemistry Zhaokalong,Sanjiang ore belt

Getting a Sense of ATP in Real Time

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Neuroscience Bulletin 2022年第7期38卷 834-836页

作者： Anthony D.Umpierre koichiro Haruwaka Long-Jun Wu Department of Neurology Mayo ClinicRochesterMN55905USA Department of Neuroscience Mayo ClinicJacksonvilFL32224USA Department of Immunology Mayo ClinicRochesterMN55905USA

Adenosine 5'-triphosphate(ATP)is a purinergic signal that can be sensed by all major cell classes in the *** is a key signal released during periods of physical damage/injury,inflammation,and neurological events,such as *** ATP signaling in the living brain is complicated by its fast enzymatic degradation,its action at multiple receptors,and its somewhat elusive.

关键词： signal damage somewhat

Electrochemical behavior of [UO_2Cl_4]^(2-) in 1-ethyl-3-methylimidazolium based ionic liquids

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Science China Chemistry 2012年第9期55卷 1699-1704页

作者： OGURA Toshinari SASAKI Kotoe TAKAO koichiro ARAI Tsuyoshi IKEDA Yasuhisa Research Laboratory for Nuclear Reactors Tokyo Institute of Technology2-12-1-N1-34 O-okayamaMeguro-kuTokyo 152-8550Japan Department of Materials Science Shibaura Institute of Technology3-7-5 ToyosuKoto-kuTokyo 135-8548Japan Department of Materials and Life Science Seikei University3-3-1 Kichijoji-KitamachiMusashino-shiTokyo 180-8633Japan

In order to examine the chemical form of uranyl species in l-ethyl-3-methylimidazolium （EMI） based ionic liquids, UV-visible absorption spectra of solutions prepared by dissolving [EMI]2[UO2CI4] into a mixture of EMICI and EMIBF4 （50：50 tool%） were measured. As a result, it was confirmed that uranyl species in the mixture of EMICI and EMIBF4 existed as [UO2C14]2-. Cyclic voltammograms （CVs） of [UO2CI4]2- in the mixture were measured at 25 ~C using a Pt working electrode, a Pt wire counter electrode, and an Ag/Ag＋ reference electrode （0.01 M AgNO3, 0.1 M tetrabutylammonium perchlorate in acetonitrile） in a glove box under an Ar atmosphere. Peaks corresponding to one redox couple were observed around -1.05 V （Epc） and -0.92 V （Epa） vs. ferrocene/ferrocenium ion （Fc/Fc＋）. The potential differences between two peaks （AEp） increased from 101 to 152 mV with an increase in the scan rate from 50 to 300 mV s-1, while the （Epc ＋ Epa）/2 value was constant, -0.989 V vs. Fc/Fc＋ regardless of the scan rate. Furthermore, the diffusion coefficient of [UO2C14]2 and the standard rate constant were es- timated to be 3.7× 10^-8 cm^2 s 1 and （2.7-2,8） × 10^-4 cm s-! at 25 ℃. By using the diffusion coefficient and the standard rate constant, the simulation of CVs was performed based on the reaction, [UO2C14]2- ＋ e- = [UO2C14]3-. The simulated CVs were found to be consistent with the experimental ones. From these results, it is concluded that [UO2C14]2- in the mixture of EMIC1 and EMIBF4 is reduced to [UO2C14]3- quasi-reversibly at -0.989 V vs. Fc/Fc＋.

关键词： uranyl chloride ionic liquids electrochemistry cyclic voltammetry

Optimal Restoration Scheduling of Damaged Networks Under Uncertain Environment by Using Improved Genetic Algorithm

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Tsinghua Science and Technology 2008年第S1期13卷 400-405页

作者： Hitoshi FURUTA Ken ISHIBASHI koichiro NAKATSU Shun HOTTA Department of Informatics Kansai University Graduate School of Informatics Kansai University

The purpose of this research is to propose an early restoration for lifeline systems after earthquake disasters. The previous researches show that the optimization of the restoration schedule by using genetic algorithm (GA) is powerful. However, those are not considering the uncertain environment after earthquake disasters. The circumstances of the damage at devastated areas are very changeable due to the aftershock, fire disaster and bad weather. In addition, the restoring works may delay by unexpected accidents. Therefore, it is necessary to obtain the restoration schedule which has robustness, because the actual restoring works could not progress smoothly under the uncertain environment. GA considering uncertainty (GACU) can treat various uncertainties involved, but it is difficult to obtain the robust schedule. In this study, an attempt is made to develop a decision support system of the optimal restoration scheduling by using the improved GACU.

关键词： restoration schedule genetic algorithm uncertainty delay of schedule