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Dysphagia in patients with isolated pontine infarction

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Neural Regeneration Research 2018年第12期13卷 2156-2159页

作者： Min Cheol chang Sang Gyu Kwak Min ho Chun Department of Rehabilitation Medicine College of Medicine Yeungnam University Department of Medical Statistics College of Medicine Catholic University of Daegu Department of Rehabilitation Medicine Asan Medical Center University of Ulsan College of Medicine

Little is known about dysphagia after pontine infarction. In this study, we evaluated the incidence of dysphagia after isolated pontine infarction and identified the predictive factors for the occurrence of dysphagia. A total of 146 patients were included in this study. All patients underwent clinical testing for dysphagia within 1 day after admission and at the time of discharge. We compared the incidence of dysphagia between patients with unilateral pontine infarction and those with bilateral pontine infarction. To evaluate the functional status of patients, we investigated their initial modified Rankin Scale（mRS） score and initial National Institutes of Health Stroke Scale（NIHSS） score within 1 day of admission. Of 146 patients, 50（34.2%） had dysphagia initially within 1 day after admission. At the second evaluation at the time of discharge, dysphagia was diagnosed in 24 patients（16.4%）. Patients with bilateral pontine infarction were more likely to present with dysphagia. In addition, clinical severity（in terms of mRS and NIHSS scores） was identified as a predictor of dysphagia in patients with cerebral infarction（multiple binary logistic regression analysis, mRS： P = 0.011, NIHSS： P = 0.004）. Dysphagia frequently occurs in patients with isolated pontine infarction. Clinicians should pay particular attention to the occurrence of dysphagia, especially in patients with bilateral pontine infarction or high functional disability.

关键词： dysphagia pons infarction stroke prediction NIHSS score MRS score

A Quantum Network System of QSS-QDC Using χ-Type Entangled States

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Chinese Physics Letters 2012年第5期29卷 22-25页

作者： chang ho hong Jin O Heo Jong in Lim Hyung jin Yang Graduate School of Information Management and Security Korea UniversitySungbuk-gu Anam 5-gaSeoulSouth Korea Center for Information Security Technologies(CIST) Korea UniversitySeoulSouth Korea Department of Physics Korea UniversityChochiwonChoongnamSouth Korea

A multiuser quantum direct communication network system for N users utilizing χ-type entangled states is prupused. The network system is composed of a communication center,N users,and N quantum lines linking the center and the N *** is no quantum line among users,and therefore only N quantum lines are necessary for communication between *** one χ-type entangled state, in this protocol we are able to send two bits of information through direct communication and,at the same time,share two bits of quantum keys. The security of the protocol is then analyzed.

关键词： quantum system utilizing

Comments on "Direct Radiative Forcing of Anthropogenic Aerosols over Oceans from Satellite Observation"

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Advances in Atmospheric Sciences 2013年第1期30卷 10-14页

作者： Hye-Ryun OH chang-hoi ho Yong-Sang ChoI School of Earth and Environmental Sciences Seoul National University Department of Environmental Science and Engineering Ewha Womans University

Previous observational studies have estimated anthropogenic aerosol direct radiative forcing over oceans without due consideration of cloudy-sky aerosols. however, when interaction between clouds and aerosols located below or above the cloud level is taken into account, the aerosol direct radiative forcing is larger by as much as 5 W m-2 in most mid-latitude regions in the Northern Hemisphere.

关键词： cloudy-sky aerosol forcing anthropogenic aerosol aerosol optical depth satellite observations

Effect of ZnO Electrodeposited on Carbon Film and Decorated with Metal Nanoparticles for Solar Hydrogen Production

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Journal of Materials Science & Technology 2016年第10期32卷 1059-1065页

作者： Young Kwang Kim Hye-Jin Seo Soonhyun Kim Sung-ho hwang Hyunwoong Park Sang Kyoo Lim Division of Nano and Energy Convergence Research Daegu Gyeongbuk Institute of Science and Technology (DGIST) School of Energy Engineering Kyungpook National University

In this study, we prepared horn-like ZnO structures on carbon films（ZnO/CF） by electrodeposition and decorated the ZnO horns with different metals（Ag, Au, and Pt） via photodeposition（M-ZnO/CF）. Using M-ZnO/CF as photocatalysts, we examined ways to enhance solar hydrogen production from various points of view, such as modifying the intrinsic physical properties and thermodynamics of the materials, and varying the chemical environment during M-ZnO/CF fabrication. In particular, we focused on the effects of the carbon film and metals in M-ZnO/CF hybrid photocatalysts on solar hydrogen production. The type of metal nanoparticles is an important factor in solar hydrogen production because the deposition rate and electrical conductivity of each metal affect the proton-water reduction ability.

关键词： Solar hydrogen production ZnO horn Carbon film Metal nanoparticle Electrodeposition

Inclusive quasielastic neutrino-nucleus scattering with energy density functional nuclear models

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Chinese Physics C 2024年第8期48卷 153-158页

作者： K.S.Kim Soonchul Choi Hana Gil chang ho Hyun School of liberal arts and science korea aerospace universitygoyang 10540korea Center for exotic nuclear studies institute for basic sciencedaejeon 34126korea Center for extreme nuclear matters korea universityseoul 02841korea Department of physics education daegu universitygyeongsan 38453korea

In this study,we calculated the inclusive charged-current neutrino-nucleus scattering from ^(40)Ar in the quasielastic *** explore the effect of uncertainties stemming from the nuclear structure,we used the KIDS(Korea-IBS-Daegu-SKKU)nuclear energy density functional and Skyrme force models,namely SLy4,SkI3,and *** models were selected to have distinct behavior in terms of the density dependence of the symmetry energy and the effective mass of the *** the charged-current neutrino scattering,the single-and double-differential cross sections were calculated for various *** cross sections are reported as a function of the incident neutrino *** theoretical cross sections were compared with experimental data,and the roles of the effective mass and symmetry energy were investigated in terms of charged-current neutrino-nucleus scattering.

关键词： energy density functional neutrino-nucleus scattering symmetry energy effective mass of the nucleon

Two Types of Diurnal Variations in Heavy Rainfall during July over Korea

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Advances in Atmospheric Sciences 2021年第12期38卷 2201-2211页

作者： chang-Kyun PARK Minhee chang chang-hoi ho Kyung-Ja HA Jinwon KIM Byung-Ju SOHN School of Earth and Environmental Sciences Seoul National UniversitySeoul 08826Korea School of Earth and Environmental Systems Pusan National UniversityBusan 46241Korea Center for Climate Physics Institute for Basic ScienceBusan 46241Korea National Institute of Meteorological Sciences Korean Meteorological AdministrationJeju 63568Korea

This study examined the characteristics of the diurnal variations of heavy rainfall(≥110 mm in 12 hours)in Korea and the related atmospheric circulation for July from 1980−*** the analysis period,two dominant pattens of diurnal variation of the heavy rainfall emerged:all-day heavy rainfall(AD)and morning only heavy rainfall(MO)*** the AD-type,the heavy rainfall is caused by abundant moisture content in conjunction with active convection in the morning(0000−1200,LST;LST=UTC+9)and the afternoon hours(1200−2400 LST).These systems are related to the enhanced moisture inflow and upward motion induced by the strengthening of the western North Pacific subtropical high and upper-tropospheric *** the MO-type,heavy rainfall occurs mostly in the morning hours;the associated atmospheric patterns are similar to the *** find that the atmospheric pattern related to severe heavy rainfalls in 2020 corresponds to a typical AD-type and resembles the 1991 heavy-rainfall system in its overall synoptic/mesoscale *** present results imply that extremely heavy rainfall episodes in Korea during the 2020 summer may occur again in the future associated with the recurring atmospheric phenomenon related to the heavy rainfall.

关键词： heavy rainfall diurnal cycle of rainfall 2020 summer summer rainy season Korea

Double-chambered left ventricle with a thrombus in an asymptomatic patient:A case report

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World Journal of Clinical Cases 2024年第2期12卷 460-465页

作者： Narae Kim In-ho Yang Hui-Jeong hwang Il-Suk Sohn Department of Medicine Kyung Hee UniversitySeoul 02447South Korea Department of Cardiology Kyung Hee University Hospital at GangdongSeoul 05278South Korea

BACKGROUND Double-chambered left ventricle(DCLV)is an extremely rare congenital disease in which the left ventricle(LV)is divided by abnormal muscle *** to its rarity,there is a lack of data on the disease,including its diagnosis,treatment,and ***,we report a case in which DCLV was diagnosed and followed *** SUMMARY A 45-year-old man presented to our hospital due to abnormal findings on an electrocardiogram recorded during a health *** had no specific cardiac symptoms,comorbidities or relevant past medical *** revealed that the LV was divided into two by muscle *** were no findings of ischemia on coronary angiography and coronary computed tomography angiography performed to exclude differential *** comprehensive analysis of the images,DCLV was *** it seemed to be asymptomatic DCLV,we decided the patient was to be observed without administering any ***,follow-up echocardiography revealed a thrombus in the accessory chamber(AC).Anticoagulant medication was initiated,the thrombus resolved,and the patient is currently undergoing follow-up without any specific *** Asymptomatic,uncomplicated DCLV was diagnosed through multimodal imaging;however,a thrombus in the AC occurred during the *** findings highlight that multimodal imaging is essential in diagnosing DCLV,and that anticoagulation is important in its management.

关键词： Double-chambered left ventricle Congenital heart disease Left ventricular aneurysm Echocardiography Coronary computed tomography angiography Contrast echocardiography Case report

Analysis of Herbal Medicine Prescriptions for Patients in An Academic Korean Medical hospital:A Cross Sectional Study of Electronic Medical Records(2010–2013)

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Chinese Journal of Integrative Medicine 2018年第6期24卷 467-473页

作者： Byung-Wook Lee Hyeon-Yeop Lee Kwang-ho Heo Hyun-Woo Cho Man-Suk hwang In Heo Byung-Cheul Shin Eui-Hyoung hwang Department of Classics and Medical History College of Korean MedicineDongguk University Dongje Medical Co. Ltd. Department of Korean Medicine Yeongam Public Health Center Department of Third Green Oriental HospitalBu-cheon (14582)Republic of Korea Department of Korean Medical Science School of Korean MedicinePusan National University Department of Rehabilitation Medicine of Korean Medicine Dae-Jeon Korean Medicine HospitalDae-Jeon University Department of Rehabilitation Medicine of Korean Medicine Korean Medicine HospitalPusan National University

Objective： To obtain fundamental information for the standardization of herbal medicine in Korea. Methods： We analyzed the herbal medicine prescription data of patients at the Pusan National University Korean Medicine hospital from March 2010 to February 2013. We used the Dongui-Bogam （Dong Yi Bao Jian） to classify prescribed herbal medicines. Results： The study revealed that the most frequently prescribed herbal medicine was ‘Liuwei Dihuang Pill （LWDHP, 六味地黄丸）＇ which was used for invigorating ‘Shen （Kidndy）-yin＇. ‘LWDHP＇ was most frequently prescribed to male patients aged 50-59, 60-69, 70-79 and 80-89 years, and ‘Xionggui Tiaoxue Decoction （XGTXD, 芎归调血饮）＇ was most frequently prescribed to female patients aged 30-39 and 40-49 years. According to the International Classification of Diseases （ICD） codes,‘Diseases of the musculoskeletal system and connective tissue＇ showed the highest prevalence. ‘LWDHP＇ and ＇XGTXD＇ was the most frequently prescribed in categories 5 and 3, respectively. Based on the percentage of prescriptions for each sex, ‘Ziyin Jianghuo Decoction （滋阴降火汤）＇ was prescribed to mainly male patients, and ‘XGTXD＇ with ‘Guima Geban Decoction （桂麻各半汤）＇ were prescribed to mainly female patients. Conclusion： This study analysis successfully determined the frequency of a variety of herbal medicines, and many restorative herbal medicines were identified and frequently administered.

关键词： herbal medicine herbal medicine prescription traditional Korean medicine Chinese medicine electronic medical record Dongui-Bogam

Optic radiation injury in patients with aneurismal subarachnoid hemorrhage: a preliminary diffusion tensor imaging report

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Neural Regeneration Research 2018年第3期13卷 563-566页

作者： Sung ho Jang Chul hoon chang Young Jin Jung Seong ho Kim Jeong Pyo Seo Department of Physical Medicine and Rehabilitation College of Medicine Yeungnam University Department of Neurosurgery College of Medicine Yeungnam University

Visual field defect is one of the various clinical manifestations in patients with subarachnoid hemorrhage（SAH）. Little is known about the pathogenic mechanism of visual field defect in SAH. In the current study,we investigated the diffusion tensor imaging （DTI） finding of the optic radiation in patients with SAH followingrupture of a cerebral artery aneurysm. We recruited 21 patients with aneurismal SAH （12 males, 9 females, mean age, 52.67 years; range, 41–68 years） who showed no definite lesion along the visual ***-one age-and sex-matched normal control subjects were also recruited. DTI data were acquired at an average of 5.9 weeks （range： 3–12 weeks） after onset and reconstruction of the optic radiation was performed using DTI-Studio software. The fractional anisotropy value, apparent diffusion coefficient value,and fiber number of the optic radiation were measured. The fractional anisotropy value of the optic radiation was significantly decreased, and the apparent diffusion coefficient value was significantly increased, in patients with aneurismal SAH than in normal control subjects. however, there was no significant difference in the fiber number of the optic radiation between patients with aneurismal SAH and normal control subjects. The decrement of fractional anisotropy value and increment of apparent diffusion coefficient value of the optic radiation in patients with aneurismal SAH suggest optic radiation injury. Therefore, we recommend a thorough evaluation for optic radiation injury in patient with aneurismal SAH.

关键词： nerve regeneration diffusion tensor imaging optic radiation subarachnoid hemorrhage visual field defect neural regeneration