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생쥐에 있어서 單一害球가 分離된 受精卵의 移植에 의한 새끼生産에 관한 硏究
崔有林,全益秀,金宣宜,崔光洙,朴修奉,辛明宰 慶北大學校農業科學技術硏究所 1991 慶北大農學誌 Vol.9 No.-
本 연구는 생쥐의 4細胞期胚에서 하나의 割球를 뽑아내는 새로운 割球分離技術인 biopsy에 대한 효율성과 分離된 受精卵과 分離한 割球의 생존성 및 새끼생산율을 검토한 結果이다. 그 結果를 要約하면 다음과 같다. 1. 4細胞期胚에서 分離한 單一割球와 4細胞期胚를 M2 배양액에 배양한 結果, 單一割球는 82.6%가 영양배엽을 형성한 割球로 發生하였고 4細胞期胚로 89.5%가 胚盤胞期胚로 發生하였다. 2. 4細胞期胚를 biopsy하여 하나의 割球가 分離된 受精卵과 대조구인 4細胞期胚를 M2배양액에서 배양한 결과 각각 83.3%와 90.4%가 胚盤細胞胚로 發生하였다. 3. Biopsy하여 4細胞期胚에서 分離한 單一割球와 대조구인 4細胞期胚에서 4개의 割球로 분리한 單一割球를 M2 배양액에서 배양한 결과 각각 80.8%와 83.3%가 영양배엽을 형성한 割球로 發生하였다. 4. 4細胞期胚에서 하나의 割球를 뽑아낸 受精卵과 대조구인 4細胞期胚를 수란생쥐에 이식한 결과 각각 36.0%와 48.6%의 새끼쥐 생산率을 얻었다. The study was carried out to investigate the viability and the offspring production rate of single blastomeres and biopsied 4-cell mouse embryos and, also to examine the efficiency of biopsy. The results obtained are summerised as follows : 1. The separated blastomeres from 4-cell embryos and intact 4-cell embryos which were cultured in Medium 2 were developed to trophoblastic vesicle and blastocyst embryo by 82.6% and 89.5%, respectively. 2. The biopsied embryos from 4-cell embryos and intact 4-cell embryos which cultured in Medium 2 were developed to blastocyst embryo by 83.3% and 90.4%, respectively. 3. The biospied blastomeres and the separated blastomeres from 4-cell embryos which were cultured in Medium 2 were developed to trophoblastic vesicle by 80.8% and 83.3%, respectively. 4. The biopsied embryos from 4-cell embryos and intact 4-cell embryos were transferred to recipients, and the offspring rate was 36% and 48.6%, respectively.
유착성 관절낭염 치료에 있어서 한방 치료와 양방 치료의 임상적 고찰 : 동서협진 모델 개발을 위한 기초 연구를 중심으로
남동우,정인태,김주희,박유선,임사비나,이두익,이재동,이윤호,최도영 경희대학교 동서의학연구소 2006 東西醫學硏究所 論文集 Vol.2006 No.-
Objectives : To observe the effect of acupuncture treatment and western medical treatment on frozen shoulder patients. Methods : 39 voluntary patients were randomly assigned to the Eastern treatment group(E group, n=22) and the Western treatment group(W group, n=17). The E group received acupuncture treatment on LI15, TE14, GB21 and Master Dong's acupuncture points, Shin-gwan and Gyun-joong, twice a week for 4 weeks. The W group received suprascapular nerve block, subacromial injection and trigger point injection, twice a week for 4 weeks. Both groups were instructed to practice self exercise during their daily lives. Evaluations were made before treatment and after treatment using Constant Shoulder Assessment(CSA), Shoulder Pain and Disability Index(SPADI) and the patient's satisfaction concerning the treatment was measured by Visual Analogue Scale(VAS). The obtained data were analyzed and compared. Results : The E group showed significant improvement(p<0.05) according to the CSA and SPADI. The patient's satisfaction scored 5.67 on a scale of 10. The W group showed significant improvement(p<0.05) according to the CSA and SPADI. The patient's satisfaction scored 7.73. But the difference between the two groups were insignificant according to CSA and SPADI. Conclusion : Both acupuncture and nerve block treatment significantly improved frozen shoulder. But the difference of the two treatments was insignificant.
You-Young Choi,Eun-Jeong Yoo,Hyun-Soo Lim,Dong-Soo Kang,Naoyuki Nishizawa,Myeong-Rak Choi 한국식품영양과학회 2001 Preventive Nutrition and Food Science Vol.6 No.2
Changes in antioxidative activity and Angiotensin converting enzyme (ACE) inhibitory activity in juice prepared from Dolsan leaf mustard kimchi (DLMK) at various fermentation temperatures were investigated. Antioxidative activity of juice from optimally ripened DLMK at 20 and 30℃ showed 80 and 83%, respectively. Juice from 10-day fermented DLMK at 30℃ showed 62% inhibitory activity against the ACE. In the juice fermented DLMK at 20℃~30℃, physiological activity was higher than that of the 4~10℃. In particular, optimally ripened DLMK at 30℃ showed the highest physiological activity. The physiological activity in DLMK juice at the fermentation period increased significantly with an increase in the growth of microbes. Consequently, a maximum physiological activity was shown at the maximum cell number. These results suggest that the microorganisms in DLMK juice would play an important role in the physiological activity.
Choi, You-Jung,Choi, Eue-Keun,Han, Kyung-Do,Jung, Jin-Hyung,Park, Jiesuck,Lee, Euijae,Choe, Wonseok,Lee, So-Ryoung,Cha, Myung-Jin,Lim, Woo-Hyun,Oh, Seil Elsevier 2018 INTERNATIONAL JOURNAL OF CARDIOLOGY Vol.273 No.-
<P><B>Abstract</B></P> <P><B>Background</B></P> <P>Atrial fibrillation (AF) and stroke are common in hypertrophic cardiomyopathy (HCM). We aimed to determine the prevalence and incidence of AF and stroke in patients with HCM during a 10-year period.</P> <P><B>Methods</B></P> <P>Using the Korean National Health Insurance Services database, we identified patients diagnosed with HCM from the entire Korean population between 2005 and 2015. The annual prevalence and incidence of AF and stroke in HCM patients were estimated.</P> <P><B>Results</B></P> <P>The prevalence of AF in HCM patients has gradually increased to 1.6-fold from 13.4% in 2005 to 20.9% in 2015. The incidence of AF ranged from 4.1 to 5.5%, a similar trend was observed for each year in HCM patients. The prevalence of stroke in HCM patients was approximately 10%, while that in HCM patients with AF was about 20%. During 8741 person-years, AF-related stroke occurred in 257 subjects among 2309 HCM patients with new-onset AF. The overall incidence rate of AF-associated stroke was 2.94 per 100 person-years. In subgroup analysis, the incidence rate of AF-associated stroke was 1.49 per 100 person-years in the under 45 year-old group and 1.48 per 100 person-years in the group with CHA<SUB>2</SUB>DS<SUB>2</SUB>VASc score of 0 or 1 point in HCM patients.</P> <P><B>Conclusions</B></P> <P>The prevalence of AF in HCM patients gradually increased over 10 years. The annual risk of AF-associated stroke in HCM was over 1% even in younger patients and those with CHA<SUB>2</SUB>DS<SUB>2</SUB>VASc score of 0 or 1 point, which provide evidence to support the prevention of stroke in HCM patients with AF.</P> <P><B>Highlights</B></P> <P> <UL> <LI> This is the first largest nationwide study on hypertrophic cardiomyopathy (HCM), a rare myocardial disease in Korea. </LI> <LI> The prevalence of AF in HCM patients gradually increases to 1.6-fold from 13.4% in 2005 to 20.9% in 2015. </LI> <LI> The annual incidence of AF in HMC patients was about 5%, and higher in female and the elderly. </LI> <LI> The prevalence of stroke in HCM patients with AF was about 20%, which were more than twice that in overall HCM patients. </LI> <LI> The risk of AF-related stroke in HCM patients was >1% per person-year even in younger patients or low CHA<SUB>2</SUB>DS<SUB>2</SUB>VAS<SUB>C</SUB> score. </LI> </UL> </P>
코치와 부모의 자율성 지지가 리듬체조 2부 경기 참가자의 기본 심리적 욕구와 내적동기에 미치는 영향
최유나(Choi, You-Na),최예림(Choi, Ye-Lim) 한국체육과학회 2019 한국체육과학회지 Vol.28 No.2
This study was aimed to verify the effect of autonomy supports of parents and coaches on the basic psychological needs and intrinsic motivation of the tier 2 rhythmic gymnastics competition participants, and define mediate effect of the basic psychological needs on the relationship between autonomy supports and intrinsic motivation, so the results can suggest proper direction for improvement, renewal of the tier 2 rhythmic gymnastics competition and promote young athletes. The 280 Tier 2 Rhythmic Gymnastics competition participants, who were not registered as an official athlete to the Korea gymnastics association between the periods from August, 2018 to October, 2018, came in on the study. Frequency Analysis, confirmatory factor analysis, correlation analysis, structure equation modeling were used for data analysis with SPSS 21.0 version program and AMOS 21.0 version program, and the results are shown below. The overall results showed the autonomy support from parents and coaches which is recognized by the tier 2 rhythmic gymnastics participants have positive effect on basic psychological needs and intrinsic motivation, and the autonomy support appears to improve intrinsic motivation through basic psychological needs.
주암호 농촌유역 오염부하특성과 동위원소를 이용한 오염기원 규명
최유진 ( Choi You-jin ),윤광식 ( Yoon Kwang-sik ),최우정 ( Choi Woo-jung ),최우영 ( Choi Woo-young ),정재운 ( Jung Ae-woon ),임상선 ( Lim Sang-sun ),이준배 ( Lee Jun-bae ),최훈근 ( Choi Ho-geun ) 한국농공학회 2009 한국농공학회 학술대회초록집 Vol.2009 No.-
유역에서의 오염부하 저감을 위한 최적관리기법을 도출하기 위해서는 모니터링을 통한 수문 및 물질순환과정을 정량적으로 분석하고 이를 통하여 주요한 오염원을 파악할 수 있는 종합적이고 체계적인 연구가 필요하나 모니터링을 통한 농촌유역에서의 오염부하량 산정에 관한 연구는 아직까지 미미한 실정이다. 본 연구에서는 주암호의 오염기원을 밝힘으로 시기별 주요오염원 관리에 도움을 주고자한다. 주암호 내 농촌유역은 외남천 유역으로 선정하였다. 외남천 유역은 전남 화순군 남면과 한천면일대로 2면 11개리로 구성되어있고, 섬진강 수계로 지방 2급 하천이다. 토지이용은 국립지리원에서 발행하는 토지이용도를 구매하여 GIS프로그램인 Arcview를 사용하여 분류하였다. 이 중 논은 575ha(9.8%), 밭 212ha(3.6%), 임야 4,826ha (82.6%), 주거지 63ha(1.2%), 기타 165ha(2.8%)로 구성되어 있어, 외남천유역은 임야와 농경지가 주요 토지이용임을 알 수 있었다. 수질 관측은 외남천의 상류(헌무교), 중류(상사교), 하류(사평교)를 선정하여 강우시와 비강우시를 기준으로 샘플링을 실시하였다. 질소동위원소를 사용하여 시기별 지점별 오염을 규명하였다. 오염원 구분기준은 δ<sup>15</sup>N이 +5‰ 이하인 경우 화학비료, +10‰이상은 축산분뇨 또는 생활하수의 영향이 있는 것으로 판단하였다. 최상류 지점인 현무교 지점의 경우 45.5±5.3‰를 보여주고 있어서 항상 축산분뇨의 영향을 받는 것으로 나타났다. 특히 9~10월에 높은 값을 보여주고 있다. 상사교의 경우 19.7±2.0‰, 사평교는 8.7±1.5‰의 값을 보이고있다. 상사교의 경우 축산분뇨 영향과 비료에 의한 영향 그리고 오염원 혼합효과를 함께 볼 수 있으며 하류지점인 사푱교에 와서는 축산분뇨 효과는 감소하여 δ<sup>15</sup>N이 5이하로 시비에 의한 영향이 명확한 경우를 볼 수 있다.
An Early-Maturing, High-Quality, and High-Yielding Rice Cultivar "Munjangbyeo"
Kil Lim Ryu,Jeong IL Kim,You Chun Song,Jung Kon Kim,Beong Chul Moon,Sang Jong Lim,Ho Yeong Kim,Hae Chune Choi,Soon Chul Kim,Moo Sang Lim,Hee Woo Lee,Yeon Kyu Hong,Dae Sik Kim 한국육종학회 2003 한국육종학회지 Vol.35 No.1
Munjangbyeo' is a japonica rice cultivar developed from a cross between Sangsanbyeo and Suweon 397 by Sangju Substation of National Yeongnam Agricultural Experiment Station, RDA in 1999. The cultivar is early matured with heading date of Aug. 2 in ordinar
최유림(You-Lim Choi),임성현(Seung-Hyeon Im),정한수(Han-Soo Jung),김승모(Seung-Mo Kim),남재원(Jae-Won Nam) 대한전자공학회 2023 대한전자공학회 학술대회 Vol.2023 No.6
Electric vehicles (EVs) are considered a great alternative for reducing carbon emissions, and South Korea is striving to increase the penetration rate of EVs through supportive policies. However, the number of EV chargers is insufficient compared to the increasing penetration rate of EVs. Given the high cost and the requirement for high voltage, selecting an accurate installation location is crucial. Therefore, we propose a machine learning-based approach to predict the appropriate location for EV chargers using data that influences the selection of charger locations on Jeju Island. Additionally, we present a method for adjusting various machine learning conditions to enable precise selection of EV charger locations with high prediction accuracy.