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총 188건 검색
본문검색 결과만 보기
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Reliability and validity of a personal computer based muscle viewer for measuring upper trapezius and transverses abdominis muscle thickness
Ju-Ri Jeong, Ju Hee Han, Ji-Eun Cho, Wan-hee Lee 물리치료재활과학회 Physical Therapy Rehabilitation Science 7 Pages
물리치료재활과학회 Physical Therapy Rehabilitation Science 2016, 제 5권 제 3호 8 155-161 (7 pages)
of a personal computer-based muscle viewer (PC-BMW) compared with that of a portable ultrasound (P-US) for measuring upper trapezius (UT) and transversus abdominis (TrA) muscle thickness at rest and during contraction. Design: Observational inter-rater reliability study. Methods: Fifty-five healthy participants (25 men, 30 women) participated in this study. PC-BMW and P-US were randomly measured at the UT and TrA muscles. Two examiners randomly obtained the images of all participants in 3 test... -
Better Start Before Kindergarten: Computer Technology, Interactive Media and the Education of Preschoolers
Kathleen A. Paciga, Jennifer Garrette Lisy, William H. Teale 환태평양유아교육연구학회 Asia-Pacific journal of research in early childhood education 20 Pages
환태평양유아교육연구학회 Asia-Pacific journal of research in early childhood education 2013, Vol.7 No.2 6 85-104 (20 pages)
This article discusses issues of technology, interactive media and preschool education related to the areas of early language and literacy. From discussions with other researchers and practitioners, we suspect that the status, situations, and children’s reactions to technology reported on here apply widely across disciplines and curricular areas in early childhood. We focus first on current research related to the role of technology in preschool children’s early language and literacy... -
MediaFrame: Parallel multimedia system architecture through HTTP redirection
김성기, 한상영, Kim. Seong-Ki, Han. Sang-Yong 한국정보처리학회 정보처리학회논문지. The KIPS transactions. Part A. Part A 10 Pages
한국정보처리학회 정보처리학회논문지. The KIPS transactions. Part A. Part A 2007, No.0 15-24 (10 pages)
용량, 고장 감내(Fault-tolerance), 비용 효율성(Cost-efficiency)에서 한계들을 드러냄에 따라 해결책들이 나타났다. 그러나, 이러한 해결책들도 각각의 문제점들을 지닌다. 우리는 이러한 문제점들을 해결하고 다양한 비디오 서버들을 활용하기 위해, HTTP 레벨 리디렉션(Redirection)을 통하여 이질적인 퍼스널 컴퓨터(Personal Computer), 운영 체제(Operating System) 비디오 서버들로 내용에 따른 라우팅(Routing)을 지원하는 병렬 멀티미디어 시스템 구조를 디자인하였다. 또한 프로토타입을 개발하였으며 서로 다른 비디오서버... -
Fault-tolerant Scheduling of Real-time Parallel Tasks with Energy Efficiency on Multicore Processors
이관우, Lee. Kwanwoo 한국정보처리학회 정보처리학회논문지. KIPS transactions on computer and communication systems 컴퓨터 및 통신 시스템 6 Pages
한국정보처리학회 정보처리학회논문지. KIPS transactions on computer and communication systems 컴퓨터 및 통신 시스템 2014, Vol.3 No.6 173-178 (6 pages)
제시된 스케줄링 기법은 병렬처리 기법을 활용하여 실시간 작업들의 데드라인 제약과 결함 포용 제약을 만족하면서 멀티코어 프로세서의 에너지 소모 효율성을 향상시켰다. 최소 에너지 소모량 스케줄을 찾는 것은 NP-hard 문제이므로, 제시된 기법은 다항식의 시간 내에 최소 에너지 소모량에 근접하는 스케줄을 찾는다. 제시된 기법은 연관된 최신 기법과 비교하여 높은 병렬처리 속도는 물론 낮은 병렬처리 속도에서도 에너지 소모량이 현격하게 낮았으며, 에너지 소모량을 최대 86% 줄였다. -
Effect of changes in head postures during use of laptops on muscle activity of the neck and trunk
Seul-gi Lee, Ye-seb Lee, Yi-jung Chung 물리치료재활과학회 Physical Therapy Rehabilitation Science 6 Pages
물리치료재활과학회 Physical Therapy Rehabilitation Science 2017, 제 6권 제 1호 6 33-38 (6 pages)
Objective: This study tried to examine the muscle activity of the neck and trunk according to head posture changes during use of laptops. Design: Cross-sectional study. Methods: This study included nineteen young men and women. All subjects maintained each posture while practice typing on laptops for ten minutes with a 5-minute break between each posture. For the neutral head posture, the subjects practiced typing while pulling their chins down towards the Adam’s apple and were able to look at... -
Home exercise program adherence strategies in vestibular rehabilitation
Shilpa B. Gaikwad, Tatri Mukherjee, Parita V. Shah, Oluwaseun I. Ambode, Eric G. Johnson, Noha S. Daher 물리치료재활과학회 Physical Therapy Rehabilitation Science 10 Pages
물리치료재활과학회 Physical Therapy Rehabilitation Science 2016, 제 5권 제 2호 1 53-62 (10 pages)
Objective: The aim of this systematic review was to investigate for effective strategies to improve home exercise program (HEP) adherence in vestibular rehabilitation (VR). Design: Systematic review. Methods: A systematic review was conducted to identify effective strategies used to improve HEP adherence of patients in VR. Six databases, Academic Search Premier, Cochrane Library, CINAHL, PUBMED, PsycINFO, and Web of Science were searched from their inception to December 31, 2015. The keywords... -
Reliability and validity of rasterstereography measurement for spinal alignment in healthy subjects
Yoon-Sil Yi, Seul-Ki Yoo, Da-Gam Lee, Dae-Sung Park 물리치료재활과학회 Physical Therapy Rehabilitation Science 7 Pages
물리치료재활과학회 Physical Therapy Rehabilitation Science 2016, 제 5권 제 1호 4 22-28 (7 pages)
Objective: The Back Mapper is one type of Rasterstereography and it can be used in the clinic without radiation exposure. The purpose of our study was to prove the reliability and validity of the Back Mapper and to compare it with the Spinal Mouse, which is an assessment tool for spinal curvatures using a wheeled mouse, and the Cobb angle by X-ray. Design: Cross-sectional study. Methods: Twenty healthy adults participated in the test to investigate for the inter-rater reliability, intra-rater... -
The effect of coenzyme Q10 on endothelial function in a young population
Jerrold Petrofsky, M. Laymona, H. Lee, E. Hernandez, D. Dequine, L. Thorsen, R. Lovell, J. Andrade 물리치료재활과학회 Physical Therapy Rehabilitation Science 7 Pages
물리치료재활과학회 Physical Therapy Rehabilitation Science 2012, 제 1권 제 1호 2 6-12 (7 pages)
Objective: Coenzyme (CoQ10) is an enzymatic co factor used in normal cellular metabolism. Recent evidence shows that in people with heart disease it can reverse endothelial cell damage in the blood vessels. It is also a potent antioxidant. Design: One group pretest-posttest design. Methods: In the present study, endothelial function was evaluated using the response to occlusion and heat before and 2 weeks after administration of CoQ10, 300 mg/day. Thirty Eight subjects, who are physical therapy... -
Media Landscape without Apple: A Workshop for Critical Awareness of Alternative Media Infrastructure
Mizukoshi Shin 경인교육대학교 교육연구원 The Journal of Education 18 Pages
경인교육대학교 교육연구원 The Journal of Education 2020, Vol.3 No.2 5 77-94 (18 pages)
examine a 5-day workshop titled “Media Landscape Without Apple 2019.” “If Apple Computer went bankrupt in 2007 and iPhones don’t exist, what would our media landscape look like today? Please discuss this among your group and come up with a possible scenario.” This was the mission presented to the participants on the first day. This workshop is a model among our media infra literacy workshops whose aim is for the participants to “imagine an alternative media infrastructure environment.” -
Multi-voxel magnetic resonance spectroscopy of cerebral metabolites in healthy dogs at 1.5 Tesla
Sooyoung Choi, Yumi Song, Kija Lee, Youngwon Lee, Hojung Choi 대한수의학회 Journal of Veterinary Science 8 Pages
대한수의학회 Journal of Veterinary Science 2016, 제 17권 제 2호 11 217-224 (8 pages)
This study was conducted to measure the difference in levels of cerebral metabolites in the right and left hemispheres, gray (GM) and white matter (WM), imaging planes, and anatomical regions of healthy dogs to establish normal variations. Eight male Beagle dogs (1 to 4 years of age; mean age, 2 years) with no evidence of neurologic disease were studied. Using the multi-voxel technique on a 1.5 Tesla magnetic resonance imaging scanner, metabolite values (N-acetyl aspartate [NAA], choline [Cho],... -
Effects of intertrochanteric varus osteotomy on Norberg angle and percent coverage of the femoral head in displastic dogs
Stefania Pinna*, Enrico Pizzuti, Fabio Carli 대한수의학회 Journal of Veterinary Science 7 Pages
대한수의학회 Journal of Veterinary Science 2013, 제 14권 제 2호 10 185-191 (7 pages)
This study was conducted to assess the effects of femoral varus osteotomy on joint congruency in dogs affected by early stage hip dysplasia. Preoperative planning to move the femoral head within the acetabulum was carried out. Varisation of the femoral inclination angle (fIA) was achieved by Intertrochanteric Osteotomy (ITO). Norberg angle (NA), percent coverage (PC) of the femoral head by the acetabulum and fIA was measured from preoperative, immediate postoperative and first and second recheck... -
Virtual otoscopy for evaluating the inner ear with a fluid-filled tympanic cavity in dogs
Youngkwon Cho, Jimo Jeong, Haebeom Lee, Minsu Kim, Namsoo Kim, Kichang Lee* 대한수의학회 Journal of Veterinary Science 6 Pages
대한수의학회 Journal of Veterinary Science 2012, 제 13권 제 4호 12 419-424 (6 pages)
The feasibility of virtual otoscopy (VO) imaging was evaluated in five dogs with experimentally induced otitis media, two control dogs, and two canine patients with otitis media. VO images of the tympanic cavity and ossicles were generated with commercially available software using raw computed tomography (CT) data. Eight out of 10 ears inoculated with pathogen exhibited obvious clinical signs associated with otitis externa. CT images revealed soft tissue density material occupying the tympanic... -
Activation of Akt/protein kinase B mediates the protective effects of mechanical stretching against myocardial ischemia-reperfusion injury
Chan-Hyung Kim*, Jia Hao, Hee-Yul Ahn, Si Wook Kim* 대한수의학회 Journal of Veterinary Science 10 Pages
대한수의학회 Journal of Veterinary Science 2012, 제 13권 제 3호 4 235-244 (10 pages)
Akt/protein kinase B is a well-known cell survival factor and activated by many stimuli including mechanical stretching. Therefore, we evaluated the cardioprotective effect of a brief mechanical stretching of rat hearts and determined whether activation of Akt through phosphatidylinositol 3-kinase (PI3K) is involved in stretch-induced cardioprotection (SIC). Stretch preconditioning reduced infarct size and improved post- ischemic cardiac function compared to the control group. Phosphorylation of... -
Cone beam computed tomography and intraoral radiography for diagnosis of dental abnormalities in dogs and cats
Marcello R. Roza*, Luiz Antonio F. Silva, Mauricio Barriviera, Alessandro L. Januário, Ana Cristina B. Bezerra, Maria Clori 대한수의학회 Journal of Veterinary Science 6 Pages
대한수의학회 Journal of Veterinary Science 2011, 제 12권 제 4호 12 387-392 (6 pages)
The development of veterinary dentistry has substantially improved the ability to diagnose canine and feline dental abnormalities. Consequently, examinations previously performed only on humans are now available for small animals, thus improving the diagnostic quality. This has increased the need for technical qualification of veterinary professionals and increased technological investments. This study evaluated the use of cone beam computed tomography and intraoral radiography as complementary... -
Detection of Streptococcus dysgalactiae subsp. equisimilis in equine nasopharyngeal swabs by PCR
Silvia Preziuso, *, Fulvio Laus, Aurora Romero Tejeda, Carlo Valente, Vincenzo Cuteri2 대한수의학회 Journal of Veterinary Science 6 Pages
대한수의학회 Journal of Veterinary Science 2010, 제 11권 제 1호 10 67-72 (6 pages)
Streptococcus (S.) dysgalactiae subsp. equisimilis is responsible for severe diseases in humans, including primary bacteraemia, pneumonia, endocarditis, and toxic shock syndrome. Infection in some animal species can also occur, although a few studies have looked into cross-species infectivity. In horses, S. equisimilis is generally considered infrequent or opportunistic, but has recently been isolated from cases of strangles-like disease. Rapid and sensitive diagnostic techniques could enable... -
Relative biological effectiveness of fast neutrons for apoptosis in mouse hair follicles
Hae-June Lee, Sung-Ho Kim* 대한수의학회 Journal of Veterinary Science 6 Pages
대한수의학회 Journal of Veterinary Science 2007, 제 8권 제 4호 4 335-340 (6 pages)
This study compared the effects of high linear energy transfer (LET) fast neutrons on the induction of apoptosis in the hair follicles of ICR mice with those of low LET Co ■-rays. The changes that occurred from 0 to 24 h after exposing the mice to either 2 Gy of ■-rays (2 Gy/min) or 0.8 Gy of neutrons (94 mGy/min, 35 MeV) were examined. The maximum frequency was found at 12 h (■- rays) or 8 h (neutrons) after irradiation. The mice that received 0-8 Gy of ■-rays or 0-1.6 Gy of neutrons were... -
The micronucleus frequency in cytokinesis-blocked lymphocytes of cattle in the vicinity of a nuclear power plant
Hae-June Lee, Chang-Mo Kang, Se-Ra Kim, Jong-Choon Kim, Chun-Sik Bae, Ki-Seok Oh, Sung-Kee Jo, Tae-Hwan Kim, Jong-Sik Jang, Sung 대한수의학회 Journal of Veterinary Science 4 Pages
대한수의학회 Journal of Veterinary Science 2007, 제 8권 제 2호 3 117-120 (4 pages)
Cytogenetic and hematological analyses were performed on the peripheral blood lymphocytes (PBLs) obtained from Korean native cattle bred in the vicinity of three nuclear power plants (Wolsong, Uljin and Yeonggwang) and in a control area. The micronucleus (MN) rates for the cattle from the Wolsong, Uljin and Yeonggwang nuclear power plants and for the control area were 9.87 ± 2.64, 8.90 ± 3.84, 9.20 ± 3.68 and 9.60 ± 3.91 per 1,000 cytokinesis-blocked lymphocytes, respectively. The apparent... -
Application of biotechnological tools for coccidia vaccine development
Wongi Min, Rami A. Dalloul, Hyun S. Lillehoj 대한수의학회 Journal of Veterinary Science 10 Pages
대한수의학회 Journal of Veterinary Science 2004, 제 5권 제 4호 1 279-288 (10 pages)
Coccidiosis is a ubiquitous intestinal protozoan infection of poultry seriously impairing the growth and feed utilization of infected animals. Conventional disease control strategies have relied on prophylactic medication. Due to the continual emergence of drug resistant parasites in the field and increasing incidence of broiler condemnations due to coccidia, novel approaches are urgently needed to reduce economic losses. Understanding the basic biology of host-parasite interactions and... -
Quantitative Doppler echocardiography during Dobutamine stress test in canine mitral regurgitant model
HoJungChoi, SungJunWon, KiChangLee, MinCheolChoi, JungHeeYoon 대한수의학회 Korean Journal of Veterinary Research(구 대한수의학회지) 6 Pages
대한수의학회 Korean Journal of Veterinary Research(구 대한수의학회지) 2004, 제 44권 제 2호 21 317-322 (6 pages)
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The Structural Time Relationship between the Rhythmical Characteristics of Minimal Music and Film Elements shown in the Film ‘Mishima: A Life in Four Chapters’
이상윤(SangYoon Lee) 한국음악교육공학회 음악교육공학 36 Pages
한국음악교육공학회 음악교육공학 2018, 제 34호 8 135-170 (36 pages)
본 논문에서 영화 ‘Mishima: A Life in Four Chapters’에 쓰인 필립 글래스의 미니멀 음악으로서의 외재적 음악이 영화의 요소들과 어떻게 구조적 시간관계를 형성하는지 연구하였다. 영화의 각 장면에서 미시적으로 나타나는 영화와 음악의 구조적 시간 관계는 음악이 박자 구성을 위하여 화면과 상호보완적 역할을 하는 유형, 음악의 리듬 패턴의 반복점과 영화 요소의 전환점이 시간적 유사성을 가지는 관계로 분석되는 유형, 영화의 전개에 있어서 음악 리듬의 기본 음표 개수 단위 또는 음가단위가 점진적으로 변화하는 것으로... -
Accuracy of three-dimensional cephalograms generated using a biplanar imaging system
Ha-Yeon Park, Jae-Seo Lee, Jin-Hyoung Cho, Hyeon-Shik Hwang, Kyung-Min Lee 대한치과교정학회 The Korean Journal of Orthodontics 12 Pages
대한치과교정학회 The Korean Journal of Orthodontics 2018, 제 48권 제 5호 3 292-303 (12 pages)
Objective: Biplanar imaging systems allow for simultaneous acquisition of lateral and frontal cephalograms. The purpose of this study was to compare measurements recorded on three-dimensional (3D) cephalograms constructed from two-dimensional conventional radiographs and biplanar radiographs generated using a new biplanar imaging system with those recorded on conebeam computed tomography (CBCT)-generated cephalograms in order to evaluate the accuracy of the 3D cephalograms generated using the... -
The effects of posterior retraction on the displacement of the maxilla
Bo-Yeong Yoo, Jong-Chul Kim 대한치과교정학회 The Korean Journal of Orthodontics 13 Pages
대한치과교정학회 The Korean Journal of Orthodontics 1996, 제 26권 제 6호 5 691-703 (13 pages)
to the first molar. The direction of the force application was 23° downward, parallel, 23° upward and 45` upward to the occlusal plane. The stress distribution and the displacement within the maxilla were analyzed by three-dimensional finite element method. The findings obtained were as follows: 1. Maxillary first molar was displaced posteriorly and inferiorly in 23° downward, parallel, 23° upward retraction but it was displaced posteriorly and superiorly in 45° upward retraction. 2. ANS, A... -
한국인 젊은여성의 심미적인 안면 연조직 형태에 관한 두부 X-선 계측학적 연구
우제경(Je-Kyung WOO), 권오원(Oh-Won KWON), 성재현(Jae-Hyun SUNG) 대한치과교정학회 The Korean Journal of Orthodontics 14 Pages
대한치과교정학회 The Korean Journal of Orthodontics 1997, 제 27권 제 2호 7 245-258 (14 pages)
본 연구에서는 대구에서 활동하고 있는 모델과 심미적인 안모를 가졌다고 추천받는 68명의 젊은 여성을 대상으로 하여 두부 X-선 사진, 정모 사진과 측모 실루엣 사진을 채득하였다. 두부 X-선 사진의 연조직 측모선만을 사용한 3명씩이 측모 실루엣 FH plane이 평행하게 한장에 그려서 제작한 사진을 경북대학교 미술학과 재학생 7명과 교정 전고의 15명에게 평가하게 하였으며 정모 사진은 교정 전공의만 평가하게 하였다. 아주 좋은 경우를 9점, 종느 경우를 7점, 보통인 경우를 5점, 좋지 않은 경우를 3점으로 처리토록 하였다.... -
Analysis of Eye Movements during Perusal Time According to Musical Structure and Sight-Reading Ability of Pre-Service Elementary School Teachers
Su-Young Bae, Sumi Kwon 한국음악교육학회 음악교육연구 19 Pages
한국음악교육학회 음악교육연구 2022, 제 51권 제 3호 4 75-93 (19 pages)
study aims to analyze the differences in eye movements during perusal time prior to sight-reading according to musical structure and sight-reading ability. To this end, 19 pre-service elementary school teachers read a single-line melody, a melody in parallel motion, and a melody with harmonic accompaniment through a Tobii Pro X2-60 eye tracker installed at the bottom of the computer monitor and played the electronic piano with a 10-second perusal time. Then, their eye movements during the perusa... -
Antipruritic effect of curcumin on histamine-induced itching in mice
Han Kyu Lee, Seok Bum Park, Su-youne Chang, Sung Jun Jung 대한생리학회-대한약리학회 The Korean Journal of Physiology & Pharmacology 8 Pages
대한생리학회-대한약리학회 The Korean Journal of Physiology & Pharmacology 2018, Vol.22 No.5 8 547-554 (8 pages)
Itching is a common clinical symptom of skin disease that significantly affects a patient’s quality of life. Transient receptor potential vanilloid 1 (TRPV1) receptors of keratinocytes and peripheral nerve fibers in skin are involved in the regulation of itching as well as pain. In this study, we investigated whether curcumin, which acts on TRPV1 receptors, affects histamine-induced itching in mice, using behavioral tests and electrophysiological approaches. We found that histamine-induced... -
Seasonal acclimation in sudomotor function evaluated by QSART in healthy humans
YoungOhShin, Jeong-BeomLee, Jeong-HoKim 대한생리학회-대한약리학회 The Korean Journal of Physiology & Pharmacology 7 Pages
대한생리학회-대한약리학회 The Korean Journal of Physiology & Pharmacology 2016, Vol.20 No.5 7 499-505 (7 pages)
The quantitative sudomotor axon reflex testing (QSART) is a classic test of routine postganglionic sudomotor function. We investigated sudomotor function by QSART after summer (July 2012) and winter (January 2013) seasonal acclimation (SA) in the Republic of Korea. QSART with acetylcholine (ACh) iontophoresis were performed to determine directly activated (DIR) and axon reflex-mediated (AXR1, 2) sweating rate. Onset time of axon reflex, activated sweat gland density (ASGD), activated sweat gland... -
Social Isolation Selectively Increases Anxiety in Mice without Affecting Depression-like Behavior
ChuljungKwak, Sue-HyunLee, Bong-KiunKaang 대한생리학회-대한약리학회 The Korean Journal of Physiology & Pharmacology 4 Pages
대한생리학회-대한약리학회 The Korean Journal of Physiology & Pharmacology 2009, Vol.13 No.5 4 357-360 (4 pages)
It is hypothesized that a number of environmental factors affect animals' behavior. Without controlling these variables, it is very hard for researchers to get not only reliable, but replicable data from various behavioral experiments testing animals' cognitive as well as emotional functions. For example, laboratory mice which had restricted environment showed different synaptic potentiation properties with wild mice (Zhao MG et al., 2009). While performing behavioral experiments, however, it is... -
Expression of Nitric Oxide Synthase and Endothelin-1 in Human Uterine Artery from Full-Term Pregnancies
Ook-HwanChoi, SunHeeLee, EunJinKim, KoanHoiKim, ByungYongRhim 대한생리학회-대한약리학회 The Korean Journal of Physiology & Pharmacology 8 Pages
대한생리학회-대한약리학회 The Korean Journal of Physiology & Pharmacology 2005, Vol.9 No.3 6 165-172 (8 pages)
The aim of this study was to determine the roles of ET-1 and NO on uterine blood flow in pregnancy. Uterine arteries were isolated from 17 nonpregnant and 12 pregnant women. Nonpregnant group included patients with median age of 48.6⁑2.3 years who underwent hysterectomy, because of myoma. Pregnant group included patients with median age of 31.3⁑1.4 years undergoing cesarean delivery. ET-1 and ET-2 induced concentration-dependent contraction in isolated nonpregnant and pregnant... -
Regulation of L-type Calcium Channel Current by Somatostatin in Guinea-Pig Gastric Myocytes
YoungChulKim, JaeHoonSim, SangJinLee, TongMookKang, SungJoonKim, SeungRyulKim, SeiJinYoun, SangJeonLee, Wen-XieXu6, InsukSo, KiWhanKim 대한생리학회-대한약리학회 The Korean Journal of Physiology & Pharmacology 6 Pages
대한생리학회-대한약리학회 The Korean Journal of Physiology & Pharmacology 2005, Vol.9 No.2 5 103-108 (6 pages)
To study the direct effect of somatostatin (SS) on calcium channel current (IBa) in guinea-pig gastric myocytes, IBa was recorded by using whole-cell patch clamp technique in single smooth muscle cells. Nicardipine (1μM), a L-type Ca2+ channel blocker, inhibited IBa by 98⁑1.9% (n=5), however IBa was decreased in a reversible manner by application of SS. The peak IBa at 0 mV were decreased to 95⁑1.1, 92⁑1.9, 82⁑4.0, 66⁑5.8, 10⁑2.9% at 1010, 109,... -
Ca2+-activated K+ Currents of Pancreatic Duct Cells in Guinea-pig
Han-WookLee, JingchaoLi, Na-YounKoo, ZhengGenPiao, SungMinHwang, Jae-WoongHan, Han-SaemChoi, Jong-HeunLee, JoongSooKim, KyungpyoPark 대한생리학회-대한약리학회 The Korean Journal of Physiology & Pharmacology 4 Pages
대한생리학회-대한약리학회 The Korean Journal of Physiology & Pharmacology 2004, Vol.8 No.6 7 335-338 (4 pages)
There are numerous studies on transepithelial transports in duct cells including Cl and/or HCO3. However, studies on transepithelial K transport of normal duct cells in exocrine glands are scarce. In the present study, we examined the characteristics of K currents in single duct cells isolated from guinea pig pancreas, using a whole-cell patch clamp technique. Both Cl and K conductance were found with KCl rich pipette solutions. When the bath solution... -
Cooperation of Gβ and Gαq Protein in Contractile Response of Cat Lower Esophageal Sphincter (LES)
UyDongSohnTaiSangLee 대한생리학회-대한약리학회 The Korean Journal of Physiology & Pharmacology 7 Pages
대한생리학회-대한약리학회 The Korean Journal of Physiology & Pharmacology 2003, Vol.7 No.6 9 349-355 (7 pages)
We previously shown that LES contraction depends on M3 receptors linked to PTX insensitive Gq protein and activation of PLC. This results in production of IP3, which mediates calcium release, and contraction through a CaM dependent pathway. In the esophagus ACh activates M2 receptors linked to PTX sensitive Gi3 protein, resulting in activation of PLD, presumably, production of DAG. We investigated the role of PLC isozymes which can be activated by Gq or Gβ protein on ACh-induced contraction in... -
Comparison of Vasodilator Effects of Platycodin D and D3 in Rats
Dong-YoonLim, Byeong-CheolKim, Eun-BangLee 대한생리학회-대한약리학회 The Korean Journal of Physiology & Pharmacology 7 Pages
대한생리학회-대한약리학회 The Korean Journal of Physiology & Pharmacology 2003, Vol.7 No.3 5 149-155 (7 pages)
The aim of the present study was to examine the effects of platycodin D and D3, which are active components derived from the roots of Platycodon grandiflorum A. DC., on the contractile force of the i3olated rat aorta and blood pressure of the anesthetized rat, and also to elucidate its mechanism of action. Both phenylephrine (an adrenergic α1-receptor agonist) and high potassium (a membrane- depolarizing agent) caused great contractile responses in the isolated aortic strips. Platycodin D at... -
Thiol-dependent Redox Mechanisms in the Modification of ATP-Sensitive Potassium Channels in Rabbit Ventricular Myocytes
JinHan, NariKim, DangVanCuong, ChunghuiKim, EuiyongKim 대한생리학회-대한약리학회 The Korean Journal of Physiology & Pharmacology 9 Pages
대한생리학회-대한약리학회 The Korean Journal of Physiology & Pharmacology 2003, Vol.7 No.1 4 15-23 (9 pages)
Cellular redox state is known to be perturbed during ischemia and that Ca2 and K channels have been shown to have functional thiol groups. In this study, the properties of thiol redox modulation of the ATP-sensitive K (KATP) channel were examined in rabbit ventricular myocytes. Rabbit ventricular myocytes were isolated using a Langendorff column for coronary perfusion and collagenase. Single-channel currents were measured in excised membrane patch configuration of... -
The Gradient Model of the Rabbit Sinoatrial Node
H.Dobrzynski, M.Lei, S.A.Jones, M.K.Lancaster, M.R.Boyett 대한생리학회-대한약리학회 The Korean Journal of Physiology & Pharmacology 10 Pages
대한생리학회-대한약리학회 The Korean Journal of Physiology & Pharmacology 2002, Vol.6 No.4 1 173-182 (10 pages)
The sinoatrial (SA) node is a complex and inhomogeneous tissue in terms of cell morphology and electrical activity. There are two models of the cellular organisation of the sinoatrial node: the gradient and mosaic models. According to the gradient model there is a gradual transition in morphology and electrical properties of SA node cells from the centre to the periphery of the SA node. In the mosaic model, there is a variable mix of atrial and sinoatrial node cells from the centre to the... -
Nitroxergic Nerve Relaxes Rat Gastric Smooth Muscle by NO-cGMP Pathway
YoongSamYoon, HyoungChulChoi, YoungSookJung, JongHoKim, KwangYounLee, UyDongSohn, JeoungHeeHa, WonJoonKim 대한생리학회-대한약리학회 The Korean Journal of Physiology & Pharmacology 10 Pages
대한생리학회-대한약리학회 The Korean Journal of Physiology & Pharmacology 2000, Vol.4 No.5 5 369-378 (10 pages)
This study was undertaken to investigate an involvement of nitroxergic innervation in gastric smooth muscle of rat. Isometric tension study, the measurement of single cell length, NADPH diaphorase stain of smooth muscle layers and neuronal nitric oxide synthase (nNOS) western blotting were performed. Sodium nitroprusside (SNP), a nitric oxide donor, relaxed the muscle strips precontracted by acetylcholine (ACh) in a concentration-dependent manner. Pretreatment of L-arginine decreased the... -
The Effect of NO Donor on Contraction, Cytosolic Ca2+ Level and Ionic Currents in Guinea-pig Ileal Smooth Muscle
Seong-ChunKwon, Ki-YoungPark, Duck-SunAhn, Young-HoLee, Bok-SoonKang 대한생리학회-대한약리학회 The Korean Journal of Physiology & Pharmacology 8 Pages
대한생리학회-대한약리학회 The Korean Journal of Physiology & Pharmacology 2000, Vol.4 No.1 5 33-40 (8 pages)
currents in guinea-pig ileum. SIN-1 (0.01∼100μM) inhibited 25 mM KCl- or histamine (10μM)-induced contraction in a concentration-dependent manner. SIN-1 reduced both the 25 mM KCl- and the histamine-stimulated increases in muscle tension in parallel with decreased [Ca2]i. Using the patch clamp technique with a holding potential of 60 mV, SIN-1 (10μM) decreased peak Ba currents (IBa) by 30.9⁑5.4% (n=6) when voltage was stepped from 60 mV to 10 mV and this... -
Characteristics of Hypoxic Pulmonary Vasoconstriction of the Rat Study by the Vessel Size and Location in the Lung
Sang-JinLeeKiWhanKim 대한생리학회-대한약리학회 The Korean Journal of Physiology & Pharmacology 8 Pages
대한생리학회-대한약리학회 The Korean Journal of Physiology & Pharmacology 1999, Vol.3 No.3 10 321-328 (8 pages)
Pulmonary blood vessels with diameters of 200∼400 μm produce considerably more force in response to vasoconstrictor drugs than those which are either smaller or larger. We have therefore investigated whether or not hypoxic pulmonary vasoconstriction (HPV) is more powerful in vessels of these diameters. We have also looked at the possibility that vessels from different regions of the lung respond differently. To do this we have grouped vessels according to their location within the lung as... -
Effect of UV Irradiation and Rebamipide on the Blood Flow and Viability of Rabbit Skin Flap
Eung-JooSuh, Hyoung-ChulChoi, Uy-DongSohn, Jeoung-HeeHa, Kwang-YounLee, Won-JoonKim 대한생리학회-대한약리학회 The Korean Journal of Physiology & Pharmacology 9 Pages
대한생리학회-대한약리학회 The Korean Journal of Physiology & Pharmacology 1997, Vol.1 No.5 14 581-589 (9 pages)
This study was undertaken to examine the effects of ultraviolet light (UVL) and rebamipide on the cutaneous blood flow and tissue survival on rabbit skin flap. In a random bipedicle flap, Laser Doppler Flowmetry (LDF) was employed to measure the blood flow of flap (BFF). Wound Margin Strength (WMS) measured by force transducer and Light microscophy were used for evaluation of tissue viability. Single exposure to UVL increased the BFF gradually for more than 15 hours, and decreased the... -
Effects of Arachidonic Acid on the Calcium Channel Current (IBa) and on the Osmotic Stretch-induced Increase of IBa in Guinea-Pig Gastric Myocytes
WenXieXu, SungJoonKim, InsukSo, SukHyoSuh, KiWhanKim 대한생리학회-대한약리학회 The Korean Journal of Physiology & Pharmacology 9 Pages
대한생리학회-대한약리학회 The Korean Journal of Physiology & Pharmacology 1997, Vol.1 No.4 10 435-443 (9 pages)
We employed the whole-cell patch clamp technique to investigate the effects of arachidonic acid (AA) on barium inward current through the L-type calcium channels (IBa) and on osmotic stretch-induced increase of IBa in guinea-pig antral gastric myocytes. Under isosmotic condition, AA inhibited IBa in a dose-dependent manner to 91.1⁑1.4, 72.0⁑3.2, 46.0⁑1.8, and 20.3⁑2.3% at 1, 5, 10, 30 mM, respectively. The inhibitory effect of AA was not affected by 10 ㄍM... -
Spontaneous Electrical Activity in Cerebellar Purkinje Neurons of Postnatal Rats
SangChaeNam 대한생리학회-대한약리학회 The Korean Journal of Physiology & Pharmacology 12 Pages
대한생리학회-대한약리학회 The Korean Journal of Physiology & Pharmacology 1997, Vol.1 No.4 2 355-366 (12 pages)
Although cerebellar Purkinje cells display spontaneous electrical activity in vivo and in slice experiments, the mechanism of the spontaneous activity generation has not been clearly understood. The aim of this study was to investigate whether cerebellar Purkinje cells of postnatal rats generate spontaneous electrical activity without synaptic inputs. Dissociated cerebellar Purkinje cells were used for reducing synaptic inputs in the present study. Cerebellar Purkinje cells with dendrites were... -
기억 기능은 단순한 기억 기능으로만 분리되지 않고 다른 뇌기능이 실제로 작동하는데 가장 기초적 이고 중요한 역할을 한다. 그러므로 기억 기능은 거의 대부분의 뇌기능과 관계되며 피질과 피질하의 대부분의 구조와 회로가 관여되고 있다. 그러므로 기억의 뇌기전을 이해하는 것은 기억 기능뿐만 아니 라 뇌기능과 뇌의 정보처리를 전체적으로 이해하는데 아주 중요하다. 기억은 실제로 세포간의 구조적 변화를 통해 형성된다. 어떠한 대상과 사건의 기억은 별도의 사항으로 기억되는 것이 아니라 그 사건 의 구성요소와 높은...
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알쯔하이머형 치매 12례에서의 뇌혈관류결손에 대한 종적관찰
김진영, 이재성, 이동우, 김장규, 전홍진, 김선욱, 이동수, 조맹제 대한신경정신의학회 신경정신의학 13 Pages
대한신경정신의학회 신경정신의학 2002, 제 41권 제 5호 13 863-875 (13 pages)
연구목적： 본 연구는 알쯔하이머형 치매 환자들을 종단적으로 추적하면서 뇌 단일광자 방출 전산화 단층촬영 (Single Photon Emission Computed Tomography : SPECT)을 이용, 기저영상과 추적영상을 얻은 후 3차원적인 관심용적 접근법으로 분석함으로써 알쯔하이머형 치매에서의 관류결손 소견의 이상 유무 및 종단적 변화를 규명하기 위한 것이다. 방 법： 알쯔하이머형 치매 환자군 12명(남자 10명 여자 2명, 평균연령 73.25±10.62세)과 정상대조군 10명 (남자 7명 여자 3명, 평균연령 75.10±5.76세)을 대상으로 하였다.... -
Mechanism of Catecholamine Secretion Evoked by Lithium from the Isolated Perfused Rat Adrenal Gland
임동윤(Dong-Yoon Lim), 김철(Cheol Kim), 오형근(Hyeong-Geun Oh) 대한약리학회 대한약리학잡지 16 Pages
대한약리학회 대한약리학잡지 1996, 제 32권 제 3호 7 357-372 (16 pages)
Lithium (Li) is known to be used not only during acute manic psychosis but also acute depressive phase in manic-depression. In the present study, it was attempted to investigate the effect of lithium on catecholamine (CA) secretion from the isolated perfused rat adrenal gland and to clarify the mechanism of its action. Replacement of Na+ (118.4 mM) by lithium in the normal Krebs-bicarbonate solution used to perfuse the gland produced gradually an increased response in the spontaneous...
