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전체 선택해제
총 426건 검색
본문검색 결과만 보기
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Moving Estimates Test for Jumps in Time Series Models
Na. O-Kyoung, Lee. Seon-Joo, Lee. Sang-Yeol, Choi. In-Bong 한국통계학회 한국통계학회 논문집 13 Pages
한국통계학회 한국통계학회 논문집 2006, Vol.13 No.2 205-217 (13 pages)
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Comparison Studies of Hybrid and Non-hybrid Forecasting Models for Seasonal and Trend Time Series Data
정철우, 김명석, Jeong. Chulwoo, Kim. Myung Suk 한국지능정보시스템학회 지능정보연구 17 Pages
한국지능정보시스템학회 지능정보연구 2013, Vol.19 No.1 1-17 (17 pages)
본 연구에서는 시계열 예측을 위해 선형 모형과 비선형 모형의 하이브리드 모형 및 순수 모형의 성과를 비교 평가하였다. 이를 위해 5가지 서로 다른 패턴을 가지는 데이터를 생성하여 시뮬레이션을 진행하였다. 본 연구에서 고려한 선형 모형은 AR(autoregressive model)과 SARIMA(seasonal autoregressive integrated moving average model)이고 비선형 모형은 인공신경망(artificial neural networks model)과 GAM(generalized additive model)이다. 특히, GAM은 여러 장점에도 불구하고 시계열 예측을 위한 비선형 모형으로 기존... -
Airline In-flight Meal Demand Forecasting with Neural Networks and Time Series Models
Lee. Young-Chan, Seo. Chang-Gab 한국정보시스템학회 정보시스템연구 14 Pages
한국정보시스템학회 정보시스템연구 2001, Vol.10 No.2 151-164 (14 pages)
현재의 항공사 기내식 수요예측 시스템으로는 항공기 운항의 지연이나 초과 주문으로 인한 손실 문제를 해결하기 힘든 것으로 알려져 있다. 이러한 문제를 해결하기 위해 본 연구에서는 항공기 기내식 시계열 자료만을 입력변수로 사용한 단순인공신경망모형(simple neural network model), 단순인공신경망모형에 전통적인 시계열 기법(본 연구에서는 지수 평활법)의 예측 결과를 입력변수로 추가한 혼합인공신경망모형(hybrid neural network model), 그리고 혼합인공신경 망 모형에 상관관계가 높은 다른 시계열 자료(본 논문에서는... -
COMPARATIVE ANALYSIS ON TIME SERIES MODELS FOR THE NUMBER OF REPORTED DEATH CLAIMS IN KOREAN COMPULSORY AUTOMOBILE INSURANCE
Lee. Kang-Sup, Kim. Young-Ja 한국수학교육학회 Journal of the Korea Society of Mathematical Education. 한국수학교육학회지. Series B, Pure and applied mathem 11 Pages
한국수학교육학회 Journal of the Korea Society of Mathematical Education. 한국수학교육학회지. Series B, Pure and applied mathem 2004, Vol.11 No.4 275-285 (11 pages)
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Semi-Supervised Recursive Learning of Discriminative Mixture Models for Time-Series Classification
Kim. Minyoung 한국지능시스템학회 International journal of fuzzy logic and intelligent systems 14 Pages
한국지능시스템학회 International journal of fuzzy logic and intelligent systems 2013, Vol.13 No.3 186-199 (14 pages)
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Magnetic resonance imaging characteristics of ischemic brain infarction over time in a canine stroke model
Sooyoung Choi, Daji Noh, Youngwhan Kim, Inseong Jeong, Hojung Choi, Youngwon Lee, Kija Lee 대한수의학회 Journal of Veterinary Science 7 Pages
대한수의학회 Journal of Veterinary Science 2018, 제 19권 제 1호 17 137-143 (7 pages)
This study describes magnetic resonance imaging (MRI) results and changes in lateral ventricular size over time in a canine ischemic stroke model. T1- and T2-weighted (T1W, T2W) imaging and fluid-attenuated inversion recovery (FLAIR) sequence MRI were performed at 3 h and 3, 8, and 35 days after brain infarct induction. Diffusion-weighted imaging (DWI) and apparent diffusion coefficient (ADC) mapping were performed at 8 and 35 days. A total of 29 brain lesions were induced successfully in 12 of... -
Dehydroevodiamine·HCl enhances cognitive function in memory-impaired rat models
KiYoungShin, KaYoungKim, Yoo-HunSuh 대한생리학회-대한약리학회 The Korean Journal of Physiology & Pharmacology 10 Pages
대한생리학회-대한약리학회 The Korean Journal of Physiology & Pharmacology 2017, Vol.21 No.1 7 55-64 (10 pages)
in memory-impaired rat models, namely, a scopolamine-induced amnesia model and a Aβ1-42-infused model. The cognitive effects of DHED were measured using a water maze test and a passive avoidance test in the memory-impaired rat models. The results demonstrate that DHED (10 mg/kg, p.o.) and Donepezil (1 mg/kg, p.o.) ameliorated the spatial memory impairment in the scopolamine-induced amnestic rats. Moreover, DHED significantly improved learning and memory in the Aβ1-42-infused rat model.... -
Electrophysiological and Histologic Evaluation of the Time Course of Retinal Degeneration in the rd10 Mouse Model of Retinitis Pigmentosa
SeolAJae, KunNoAhn, JiYoungKim, JeHoonSeo, HyongKyuKim, YongSookGoo 대한생리학회-대한약리학회 The Korean Journal of Physiology & Pharmacology 7 Pages
대한생리학회-대한약리학회 The Korean Journal of Physiology & Pharmacology 2013, Vol.17 No.3 8 229-235 (7 pages)
Among several animal models of retinitis pigmentosa (RP), the more recently developed rd10 mouse with later onset and slower rate of retinal degeneration than rd1 mouse is a more suitable model for testing therapeutic modalities. We therefore investigated the time course of retinal degeneration in rd10 mice before adopting this model in our interventional studies. Electroretinogram (ERG) recordings were carried out in postnatal weeks (PW) 3∼5 rd10 (n=23) and wild-type (wt) mice (n=26). We... -
Nonlinear Regression Analysis to Determine Infection Models of Colletotrichum acutatum Causing Anthracnose of Chili Pepper Using Logistic Equation
한국식물병리학회 The Plant Pathology Journal 8 Pages
한국식물병리학회 The Plant Pathology Journal 2010, 26권 1호 3 17-24 (8 pages)
A logistic model for describing combined effects of both temperature and wetness period on appressorium formation was developed using laboratory data on percent appressorium formation of Colletotrichum acutatum. In addition, the possible use of the logistic model for forecasting infection risks was also evaluated as compared with a first-order linear model. A simplified equilibrium model for enzymatic reactions was applied to obtain a temperature function for asymptote parameter (A) of logistic... -
The Effect of Global Media Consumption on Chinese Consumers’ Response to Foreign Models and Languages in Advertising : An Examination of the Moderated Mediation of Global Mindset
Sojung Kim, Nam-Hyun Um 한국광고PR실학회 광고PR실학연구 25 Pages
한국광고PR실학회 광고PR실학연구 2017, 제 10권 3호 13 318-342 (25 pages)
to Chinese consumers’ attitudes toward global signs (i.e., foreign models and foreign languages) in advertising. Findings confirm the mediating effect of global mindset, suggesting that global media consumption indirectly influences attitudes toward foreign models and foreign languages by affecting global mindset. Data further reveals the moderated mediation of global mindset by consumer ethnocentrism－as consumer ethnocentrism increased, the mediating effect of global mindset became stronger. -
Thematic-Integrative Learning with the Beyond Centers and Circle Time Approach at Tunas Harapan Preschool, Salatiga, Central Java
Zulkipli Lessy, Amin Sabi’ati 환태평양유아교육연구학회 Asia-Pacific journal of research in early childhood education 21 Pages
환태평양유아교육연구학회 Asia-Pacific journal of research in early childhood education 2018, Vol.12 No.1 3 39-59 (21 pages)
is aimed at uncovering the development of children’s attitudes at Tunas Harapan preschool in Salatiga, Central Java, through thematic-integrative learning with the Beyond Centers and Circle Time (BCCT) approach which was shown to be effective learning model for improving children’s physical, emotional, and academic performances. Involving teachers and parents, the model stimulates the rise of creativity and accommodates individual differences so that all children can experience learning as a... -
ANALYSIS OF TWO COMMODITY MARKOVIAN INVENTORY SYSTEM WITH LEAD TIME
Anbazhagan. N., Arivarignan. G. 한국전산응용수학회 The Korean journal of computational & applied mathematics, 한국전산응용수학술지 Series A 12 Pages
한국전산응용수학회 The Korean journal of computational & applied mathematics, 한국전산응용수학술지 Series A 2001, Vol.8 No.2 519-530 (12 pages)
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The effects of dual-task training on ambulatory abilities of stroke patients
Gyu Chang Lee, Won Jae Choi 물리치료재활과학회 Physical Therapy Rehabilitation Science 5 Pages
물리치료재활과학회 Physical Therapy Rehabilitation Science 2012, 제 1권 제 1호 1 1-5 (5 pages)
training, the speed increased. This showed the improvement of effective task-implementation abilities after dual-task training using task-integration models. Conclusions: In the beginning of the 2000s, dual-tasks were implemented by simply combining walking and cognition or exercise task, and the results of this study suggest that subjects with stroke have difficulty performing dual task. However, the latest trend is to let patients do the dual-task training by combining it with virtual reality. -
Problems in Korean Archaeology, Scholarship, and Excavation Planning
Martin T. Bale 한국고고학회 한국고고학전국대회 발표문 13 Pages
한국고고학회 한국고고학전국대회 발표문 제39회 한국고고학대회 23 318-330 (13 pages)
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“In the Shoes of an Algorithm”: A Media Education Game to Address Issues Related to Recommendation Algorithms
Jerry Jacques, J?r?my Grosman, Anne-Sophie Collard, Yeonju Oh, Amie Kim, Hyeon-Seon Jeong 경인교육대학교 교육연구원 The Journal of Education 26 Pages
경인교육대학교 교육연구원 The Journal of Education 2020, Vol.3 No.1 4 37-62 (26 pages)
This project led to the creation of a series of pen-and-paper games designed to (1) help teenagers share their daily experiences of recommendation algorithms to identify core issues that should be addressed by media educators and (2) to foster a better understanding of key issues related to recommendation algorithms used by digital media platforms. The project was initiated in Belgium and expanded as an international program, in collaboration with South-Korean researchers and practitioners. -
Improving Foreign Language Education in Korea and China: Focusing on Foreign Language Education Policy
Jang Eun-Young 경인교육대학교 교육연구원 The Journal of Education 11 Pages
경인교육대학교 교육연구원 The Journal of Education 2020, Vol.3 No.1 1 1-11 (11 pages)
This study examined the current situation of foreign language education, teacher training, and education in Korea and China. The analysis and comparison of both countries’ educational policies, problems, and improvement strategies revealed several aspects that require attention. When foreign language education policies are established and enforced in the future, more attention should be given to the rigorous systematization of foreign language curriculum. Furthermore, in the context of... -
A Study on Assessment Design for In-class Debates - With a Focus on Case Analyses of Judging at World Debating Championships
Lee Sun Young, Park Joshua 경인교육대학교 교육연구원 The Journal of Education 20 Pages
경인교육대학교 교육연구원 The Journal of Education 2019, Vol.2 No.2 7 85-104 (20 pages)
While debate has received broad acceptance as an important and effective tool for education, far less research attention has been paid to developing assessment designs for in-class debates. Existing studies on debate assessment has centered on examinations assessment elements and paradigms applied at domestic and US tournaments. This study goes beyond domestic or national settings to examine assessment at the highest levels of international competition, namely the World Schools Debating... -
The Current Status of Swine Respiratory Diseases in South Korea: Porcine Respiratory and Reproductive Viruses (PRRSVs) and Porcine Circovirus Type 2 (PCV)
Ga Eun Lee, Jung Ah Kim, Chan Hee Lee, Hee Chun Chung, Hye Jung Yang, Bong Kyun Park 대한수의학회 대한수의학회 학술대회발표집 2 Pages
대한수의학회 대한수의학회 학술대회발표집 춘계학술심포지움 53 111-112 (2 pages)
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Developing non-invasive early diseases detection system for bovine thermal diseases using infrared thermography
Jeong Byoung Chae, Tae Woo Kim, Il Sun Ryu, Yong Sun Jo, Yun Kyung Cho, Jun Gu Kang, Kuk Jin Lee, Joon Seok Chae 대한수의학회 대한수의학회 학술대회발표집 2 Pages
대한수의학회 대한수의학회 학술대회발표집 춘계학술심포지움 51 110-111 (2 pages)
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Transient forebrain ischemia induces impairment in cognitive performance prior to extensive neuronal cell death in Mongolian gerbil (Meriones unguiculatus)
Tomohiro Kondo, Suguru Yoshida, Hiroaki Nagai, Ai Takeshita, Masaki Mino, Hiroshi Morioka, Takayuki Nakajima, Ken Takeshi Kusakabe, Tosh 대한수의학회 Journal of Veterinary Science 7 Pages
대한수의학회 Journal of Veterinary Science 2018, 제 19권 제 4호 5 505-511 (7 pages)
In Mongolian gerbils, bilateral common carotid artery occlusion (BCCAO) for several minutes induces ischemia, due to an incomplete circle of Willis, resulting in delayed neuronal cell death in the Cornet d’Ammon 1 (CA1) region of the hippocampus. Neuronal cell death in the hippocampus and changes in behavior were examined after BCCAO was performed for 5 min in the gerbils. One day after BCCAO, the pyramidal neurons of the CA1 region of the hippocampus showed degenerative changes (clumped... -
Pharmacokinetics of tilmicosin in healthy pigs and in pigs experimentally infected with Haemophilus parasuis
Ling Zhang, Li Zhao, Yonghong Liu, Junfeng Liu, Xianqiang Li 대한수의학회 Journal of Veterinary Science 7 Pages
대한수의학회 Journal of Veterinary Science 2017, 제 18권 제 4호 2 431-437 (7 pages)
follows: Area under the concentration-time curve, maximal drug concentration, half-life of the absorption phase, half-life of the distribution phase, and half-life of the elimination phase were 34.86 ± 9.69 vs. 28.73 ± 6.18 μgㆍh/mL, 1.77 ± 0.33 vs. 1.67 ± 0.28 μg/mL, 2.27 ± 0.45 vs. 2.24 ± 0.44 h, 5.35 ± 1.40 vs. 4.61 ± 0.35 h, and 43.53 ± 8.17 vs. 42.05 ± 9.36 h, respectively. These results of this exploratory study suggest that there were no significant differences between the PK... -
Neuronal maturation in the hippocampal dentate gyrus via chronic oral administration of Artemisa annua extract is independent of cyclooxygenase 2 signaling pathway in diet-induced obesity mouse model
Hye Kyung Baek, Pan Soo Kim, Ji Ae Song, Dong-Hwa Choi, Do Eun Kim, Seung Il Oh, Sang-Kyu Park, Sung-Jo Kim, Ki-Duk Song, In Koo 대한수의학회 Journal of Veterinary Science 9 Pages
대한수의학회 Journal of Veterinary Science 2017, 제 18권 제 2호 1 119-127 (9 pages)
Recently, we reported that Artemisia annua (AA) has anti-adipogenic properties in vitro and in vivo. Reduction of adipogenesis by AA treatment may dampen systemic inflammation and protect neurons from cytokine-induced damage. Therefore, the present study was undertaken to assess whether AA increases neuronal maturation by reducing inflammatory responses, such as those mediated by cyclooxygenase 2 (COX-2). Mice were fed normal chow or a high-fat diet with or without chronic daily oral... -
Preparation and evaluation of enrofloxacin microspheres and tissue distribution in rats
Fan Yang, Jijun Kang, Fang Yang, Zhensheng Zhao, Tao Kong, Zhenling Zeng 대한수의학회 Journal of Veterinary Science 8 Pages
대한수의학회 Journal of Veterinary Science 2015, 제 16권 제 2호 4 157-164 (8 pages)
the elimination half-life (t1/2β) of enrofloxacin from lung was prolonged from 7.94 h for the conventional enrofloxacin to 13.28 h for the microspheres. Area under the lung concentration versus time curve from 0 h to ∞ (AUC0-∞) was increased from 11.66 h·μg/g to 508.00 h·μg/g. The peak concentration (Cmax) in lung was increased from 5.95 μg/g to 93.36 μg/g. Three lung-targeting parameters were further assessed and showed that the microspheres had remarkable lung-targeting capabilities. -
Canine model of ischemic stroke with permanent middle cerebral artery occlusion: clinical features, magnetic resonance imaging, histopathology, and immunohistochemistry
Joon-Hyeok Jeon, Hae-Won Jung, Hyo-Mi Jang, Jong-Hyun Moon, Ki-Tae Park, Hee-Chun Lee, Ha-Young Lim, Jung-Hyang Sur, By 대한수의학회 Journal of Veterinary Science 11 Pages
대한수의학회 Journal of Veterinary Science 2015, 제 16권 제 1호 10 75-85 (11 pages)
identify time-related changes in clinical, MRI, histopathologic, and immunohistochemical findings associated with ischemic stroke in dogs. Additionally, the association of cerebrospinal fluid (CSF) and tissue levels of interleukin (IL)-6 with clinical prognosis was assessed. Ischemic stroke was induced by permanent middle cerebral artery occlusion (MCAO) in nine healthy experimental dogs. The dogs were divided into three groups according to survival time and duration... -
Improved rat spinal cord injury model using spinal cord compression by percutaneous method
Wook-Hun Chung, Jae-Hoon Lee, Dai-Jung Chung, Wo-Jong Yang, A-Jin Lee, Chi-Bong Choi, Hwa-Seok Chang, Dae-Hyun Kim, Hyo Jin Chun 대한수의학회 Journal of Veterinary Science 7 Pages
대한수의학회 Journal of Veterinary Science 2013, 제 14권 제 3호 13 329-335 (7 pages)
Here, percutaneous spinal cord injury (SCI) methods using a balloon catheter in adult rats are described. A balloon catheter was inserted into the epidural space through the lumbosacral junction and then inflated between T9-T10 for 10min under fluoroscopic guidance. Animals were divided into three groups with respect to inflation volume: 20 μL (n = 18), 50 μL (n = 18) and control (Fogarty catheter inserted but not inflated; n = 10). Neurological assessments were then made based on BBB score,... -
Use of canine small intestinal submucosa allograft for treating perineal hernias in two dogs
A-Jin Lee, Wook-Hun Chung, Dae-Hyun Kim, Kyung-Pil Lee, Hyun Jung Suh, Sun Hee Do, Ki-dong Eom, Hwi-Yool Kim* 대한수의학회 Journal of Veterinary Science 4 Pages
대한수의학회 Journal of Veterinary Science 2012, 제 13권 제 3호 16 327-330 (4 pages)
Here, we describe two dogs in which canine small intestinal submucosa (SIS) was implanted as a biomaterial scaffold during perineal herniorrhaphy. Both dogs had developed severe muscle weakness, unilaterally herniated rectal protrusions, and heart problems with potential anesthetic risks. Areas affected by the perineal hernia (PH) located between the internal obturator and external anal sphincter muscles were reconstructed with naive canine SIS sheets. In 12 months, post-operative complications... -
Comparing the osteogenic potential of canine mesenchymal stem cells derived from adipose tissues, bone marrow, umbilical cord blood, and Wharton's jelly for treating bone defects
Byung-Jae Kang, Hak-Hyun Ryu, Sung Su Park, Yoshihisa Koyama, Masanori Kikuchi, Heung-Myong Woo, Wan Hee Kim, Oh-Kyeong Kweon* 대한수의학회 Journal of Veterinary Science 12 Pages
대한수의학회 Journal of Veterinary Science 2012, 제 13권 제 3호 12 299-310 (12 pages)
Alternative sources of mesenchymal stem cells (MSCs) for replacing bone marrow (BM) have been extensively investigated in the field of bone tissue engineering. The purpose of this study was to compare the osteogenic potential of canine MSCs derived from adipose tissue (AT), BM, umbilical cord blood (UCB), and Wharton's jelly (WJ) using in vitro culture techniques and in vivo orthotopic implantation assays. After canine MSCs were isolated from various tissues, the proliferation and osteogenic... -
Pathogen translocation and histopathological lesions in an experimental model of Salmonella Dublin infection in calves receiving lactic acid bacteria and lactose supplements
Laureano S. Frizzo*, Maria V. Zbrun, Lorena P. Soto, Ezequiel Bertozzi, Gabriel J. Sequeira, Luis E. Marti, Marcelo L. Signorini 대한수의학회 Journal of Veterinary Science 10 Pages
대한수의학회 Journal of Veterinary Science 2012, 제 13권 제 3호 7 261-270 (10 pages)
The purpose of this study was to evaluate the capacity of a lactic acid bacteria (LAB) inoculum to protect calves with or without lactose supplements against Salmonella Dublin infection by evaluating histopathological lesions and pathogen translocation. Fifteen calves were divided into three groups [control group (C-G), a group inoculated with LAB (LAB-G), and a group inoculated with LAB and given lactose supplements (L-LAB-G)] with five, six, and four animals, respectively. The inoculum,... -
Comparison of bare metal stent and paclitaxel-eluting stent using a novel rat aorta stent model
Jin Sook Kwon, Rho Kwan Park, Tae Jin Shim, Myung Ho Jeong, Myeong Chan Cho, Youngkeun Ahn, Dong-Woon Kim 대한수의학회 Journal of Veterinary Science 8 Pages
대한수의학회 Journal of Veterinary Science 2011, 제 12권 제 2호 6 143-150 (8 pages)
The purpose of our study was to create a novel rat aorta stent implantation model. Stainless steel bare metal stents (BMS) or paclitaxel-eluting stents (PES) were implanted in male Sprague-Dawley rats (BW 400 ± 20 g). Two and four weeks after stent implantation, the aorta were collected, fixed with 2% glutaraldehyde, and cut into two segments. One segment was used for scanning electron microscopy analysis to evaluate re-endothelialization, and the other segment was used to calculate the... -
Dynamic analysis of Ca level during bovine oocytes maturation and early embryonic development
Su Li Liang, Qian Jun Zhao, Xiang Chen Li, Ya Ping Jin, Yi Peng Wang, Xiao Hua Su, Wei Jun Guan, Yue Hui Ma 대한수의학회 Journal of Veterinary Science 10 Pages
대한수의학회 Journal of Veterinary Science 2011, 제 12권 제 2호 5 133-142 (10 pages)
Mammalian oocyte maturation and early embryo development processes are Ca-dependent. In this study, we used confocal microscopy to investigate the distribution pattern of Ca and its dynamic changes in the processes of bovine oocytes maturation, in vitro fertilization (IVF), parthenogenetic activation (PA) and somatic cell nuclear transfer (SCNT) embryo development. During the germinal vesicle (GV) and GV breakdown stage, Ca was distributed in the cortical ooplasm and throughout the oocytes from... -
Evaluation of infectivity and transmission of different Asian foot-and-mouth disease viruses in swine
Juan M. Pacheco, P. W. Mason 대한수의학회 Journal of Veterinary Science 10 Pages
대한수의학회 Journal of Veterinary Science 2010, 제 11권 제 2호 7 133-142 (10 pages)
Most isolates of foot-and-mouth disease virus (FMDV) display a broad host range. Since the late 1990s, the genetic lineage of PanAsia topotype FMDV serotype O has caused epidemics in the Far East, Africa, the United Kingdom, France, the Netherlands, and numerous other countries throughout Europe and Asia. In contrast, there are several FMDV isolates that exhibit a more restricted host range. A Cathay topotype isolate of FMDV serotype O from the 1997 epizootic in Taiwan (O/TAW/97) demonstrated... -
Isolation and characterization of canine umbilical cord blood-derived mesenchymal stem cells
Min-Soo Seo, Yun-Hyeok Jeong, Jeung-Ran Park, Sang-Bum Park, Kyoung-Hwan Rho, Hyung-Sik Kim, Kyung-Rok Yu, Seung-Hee Lee, Ji-Won 대한수의학회 Journal of Veterinary Science 7 Pages
대한수의학회 Journal of Veterinary Science 2009, 제 10권 제 3호 2 181-187 (7 pages)
Human umbilical cord blood-derived mesenchymal stem cells (MSCs) are known to possess the potential for multiple differentiations abilities in vitro and in vivo. In canine system, studying stem cell therapy is important, but so far, stem cells from canine were not identified and characterized. In this study, we successfully isolated and characterized MSCs from the canine umbilical cord and its fetal blood. Canine MSCs (cMSCs) were grown in medium containing low glucose DMEM with 20% FBS. The...
