Characterization of the European type of maternal lineage evident in extant Jeju native pigs

Byeong‐Woo Kim,In‐Cheol Cho,Moon‐Sung Park,Tao Zhong,임현태,Sung‐Soo Lee,Hee‐Bok Park,Moon‐Suck Ko,Jun‐Heon Lee,Jin‐Tae Jeon 한국유전학회 2011 Genes & Genomics Vol.33 No.2

Using a partial D‐loop sequence of mtDNA, an intensive analysis was conducted of the maternal lineages of Jeju native pigs (JNPs) from Korea. In total, 100 mtDNA sequences were obtained from Asian wild boars (AWBs), European wild boars (EWBs), Asian domestic pigs (ADPs), European domestic pigs (EDPs), and JNPs and were used for phylogeny and network analyses. Two distinct JNP groups - one (JNPA) in the Asian cluster and the other (JNPE) in the European cluster - were identified in the estimated phylogenetic tree and network. The maternal lineage of JNPE was the closest to that of EWB and a clear haplogroup was identified that shared an identical haplotype (hap04) among 15 individuals of JNPE and 2 individuals of EWB. A Landrace and an EWB shared hap03with a JNPE. EWB, Landrace, Large White, and Duroc formed two clear haplogroups with JNPE in a parsimonious medianjoining network analysis, suggesting that an obvious maternal contribution of EDP has occurred in JNPE in recent years. A pair‐wise mismatch analysis also indicated that JNPE may have experienced a sudden population expansion, suggesting a more recent establishment compared with the gradual population expansion of JNPA. The JNPE group therefore should be further evaluated in order to decide whether this group should be culled or accepted into further programs for maintenance of the JNP population as a pure breed.

慶南(경남) 河東(하동)의 儒脈(유맥)과 南冥學(남명학) 傳承(전승)

( Byeong Cheol Jeon ) 경상대학교 남명학연구소 2013 남명학연구 Vol.39 No.-

경남 하동 지역 유학자의 세기별 분포는 15세기 1명, 16세기 2명, 17세기 7명, 18세기 2명, 19세기 16명, 20세기 초 1명이다. 가장 비율이 높은 시기가 19세기이며, 그 다음이 17세기이다. 경남 지역은 南冥 曺植의 학문을 계승한 南冥學派가 주도적 역할을 담당하였는데, 남명학파의 성쇠에 따라 하동 지역의 유학자도 비례하여 산출되고 있는 점을 확인할 수 있다. 구역별 분포는 총 29명의 유학자 가운데 옥종면이 21명으로 가장 많으며, 그 다음으로 북천면이 6명, 금남면과 양보면이 각각 1명이다. 이 가운데 옥종면 안계리 출신의 유학자가 11명으로, 옥종면 유학자의 절반이 넘는 비율을 차지하며, 전체 하동군 유학자의 3분의 1에 해당한다. 이러한 통계를 근거해 볼 때, 하동 유학의 중심지는 옥종면이며, 그 중에서도 안계리가 핵심 지역이라고 규명해 볼 수 있다. 학맥 형성 양상을 살펴본다면, 남명학파 11명, 寒洲系列 4명, 蘆沙系列 5명, 星湖系列 3명, 尤庵系列 1명, 華西系列 1명, 기타 6명이 된다. 그러므로 하동 지역의 학파별 분포는 남명학파 및 南人 계열이 대다수를 차지하며, 그 다음으로 노사계열의 문인이 많은 비중을 가진다. 하동 지역의 남명학 전승과 관련해서는 안계마을 출신의 晉陽河氏 학자들이 家學을 통해 계승한 사실을 거론할 수 있다. 그리고 河達弘, 鄭瑀贇, 趙性家, 崔琡民, 姜柄周, 鄭敦均 등의 학자들이 서로 다른 학맥과 당파를 가지고 있었음에도 불구하고, 남명을 존숭하고 본받아 실천하려 한 점을 지적할 수 있다. According to the distribution of Confucian scholars in Hadong (河東)-gun, Gyeongnam (慶南) by century, the 15th century has one, the 16th century has two, the 17th century has 7, the 18th century has two, the 19th century has 16, and the early 20th century has one. The period that indicates the highest rate is the 19th century, and the next is the 17th century. In Gyeongnam area, Nammyeong (南冥) School that transmits Nammyeong Jo Sik’s studies has played the initiative roles. And we can see that Confucian scholars in Hadong area are produced proportionally to Nammyeong School’s rise and decline. About their distribution by area, Okjong-myeon has produced the most Confucian scholars, that is, 21 out of total 29. The next is Bukcheon-myeon as six, and Geumnam-myeon and Yangbo-myeon have produced one each. Among these, Confucian scholars from Angye-ri, Okjong-myeon are 11, so they are more than half of the Confucian scholars from Okjong-myeon. And they take up one third of the entire Confucian scholars from Hadong-gun. Based on the statistic data, we can establish that the center of Hadong Confucianism is Okjong-myeon, and in that area, Angye-ri has formed the core area. According to the aspects of formation of academic lines, Nammyeong School has 11, Hanju (寒洲) Affiliation has four, Nosa (蘆沙) Affiliation has five, Seongho (星湖) Affiliation has three, Wooam (尤庵) Affiliation has one, Hwaseo (華西) Affiliation has one, and the rest are six. Thus, according to the distribution of schools in Hadong-gun, Nammyeong School and Namin lines occupy the majority, and the next highest are literary men of Nosa Affiliation. About the transmission of Nammyeong studies in Hadong area, we can come up with the fact that Jinyanghassi Sajikgongpa (晉陽河氏 司直公派) scholars from Angye Village did transmit it by family learning. And we can also point out that scholars like Ha Dal-hong, Jeong Woo-bin, Jo Seong-ga, Choi Sook-min, Gang Byeong-ju, or Jeong Don-gyun did respect and emulate Nammyeong and tried to practice it even though they were from different academic lines or factions.

Hepatic Cirrhosis Occurring in a Young Woodchuck(Marmota monax) Due to Vertical Transmission of Woodchuck Hepatitis Virus(WHV)

Kyu-shik Jeong,정원일,Jae-yong Chung,Mi-young An,Chae-yong Jung,Gyoung-jae Lee,Jong-soo Kang,Byeong-cheol Kang,Young-heun Jee,Bruce H Williams,Young-oh Kwon,Da-hee Jeong 대한수의학회 2003 Journal of Veterinary Science Vol.4 No.2

Cirrhosis Occurring in a Young Woodchuck (Marmota monax) Due to Vertical Transmission of Woodchuck Hepatitis Virus (WHV)Da-hee Jeong, Won-il Jeong, Jae-yong Chung, Mi-young An, Chae-yong Jung, Gyoung-jae Lee1, Jong-soo Kang1, Byeong-cheol Kang2, Young-heun Jee3, Bruce H Williams4, Young-oh Kwon5 and Kyu-shik Jeong*College of Veterinary Medicine, Kyungpook National University, Daegu 702-701, Korea1Shinwon Scientific Co., LTD, Research Institute, Suwon, Korea2Clinical Research Institute, Seoul National University, Seoul 110-744, Korea3College of Veterinary Medicine, Jeju National University, Jeju 690-756, Korea

시판 항생제들의 대추나무빗자루병 치료약제 가능성 비교

박철하,이세표,차병진 충북대학교 농업과학기술연구소 1994 農業科學硏究 Vol.11 No.2

To minimize the trial and error by farmers who have no other choice but to use antibiotics for human-disease control, because no agricultural tetracycline for jujube witches-broom disease is available at this point. therapeutical efficacy of several commercial antibiotics against the disease through trunk injection was evaluated. The efficacy of human tetracyclines in trunk injection of jujube tree for witches-broom therapy varied to some extnet. Tetracyclines for intravenous or subepidermal injection showed the strongest symptom-suppression effect. Those, however, were not practical because of high price. On the other hand, tetracyclines in capsule were much cheaper than the former and can be used practically. For trunk injection, just the powder in capsule should be dissolved in clean water and then filtered through cheese cloth or tissue papaer to remove the sediments unnecessary for trees. Otherwise, the sediment would clog the injection hole and the feeder tube. In this experiment. tetracycline HCl of Glaxo made the least sediment in the solution. In addition, the plastic bottle to contain Korean wine was much cheaper and more practical than the commercial one for tree injection.

FET 및 SCR을 利用한 C-R Sweep 發振回路

朴炳哲 成均館大學校 1976 論文集 Vol.23 No.-

A new simple 3 terminal negative resistance characteristic in the form of voltage control can be obtained by using a SCR and a FET. This negative resistance element can be used in the sweep oscillating circuit. The negative resistance values are checked through experiments by the oscilloscope.

통신서비스의 늦은 수요 확산 현상에 관한 연구 : Fax 서비스를 중심으로 Focused on the Fax Markets

임병락,최문기,박명철 한국경영과학회 2002 한국경영과학회지 Vol.27 No.2

Telecommunication services are distinctive in that their adoptions are influenced by network effect resulting in 'the late take-off phenomenon' and the 'critical mass' problem. In this paper we examined, so called, 'the late take-off phenomenon' in the diffusion process of telecommunication services. We compared the parameters of the diffusion process of consumer durables with those of fax services in the US and Korea. By analyzing the parameters of a new diffusion model based on the threshold model proposed by Markus, we found that 'the late take-off phenomenon' resulted from the low heterogeneity of the threshold distribution for the potential adopters. A simulation approach was proposed for the theoretical implication of the 'critical mass' problem in the start-up telecommunications services.

정량적 게이트 심근관류 SPECT

안병철 대한핵의학회 2003 핵의학 분자영상 Vol.37 No.4

Myocardial perfusion imaging has been increasingly used to provide prognostic data and guidance on the choice of appropriate management of patients with known or suspected coronary arlery disease. The electrocardiogram gated myocardial SPECT program is coming into wide use with an advent of ^(99T)Tc-labeled tracers and an improvement of SPECT machines. The gated technique permits measurement of important cardiac prognostic indicators without any further discomforts or radiation burden in patients underwent standard myocardial perfusion SPECT. In addition, gated study significantly improves diagnostic yield by reducing the number of borderline interpretations and could find myocardial stunning and viable myocardium. Gated single photon emission computed tomography (SPECT) imaging allows the automated calculation of end-diastolic volume, end-systolic volume, ejection fraction, myocardial mass and the assessment of regional wall motion and thickening. and it have dramatically improved assessment of coronary arlery disease in routine nuclear practice. This allows the simultaneous assessment of both perfusion and function within the same acquisition, and serves as a cost-effective technique for providing more diagnostic data with fewer diagnostic tests. Because the diagnostic and prognostic power derived from knowledge of left ventricular function can be added to that provided by assessing myocardial perfusion, gated SPECT imaging has rapidly gained widespread acceptance and is now used on a routine clinical basis in a growing number of laboratories. including South Korea. The gated SPECT technique for measurement of left ventricular parameters has been validated against a variety of well established techniques. In this work, overview of gated myocardial perfusion SPECT focus on functional parameters is presented.

포도재배용 봉지제조 기술개발 : 포도 재배용 봉지의 특성 변화와 포도당도 Effect of Grape-Bagging Paper Properties on Grape Saccharinity

유병철,박종문,이영주,윤두훈 충북대학교 한국과학재단 지정 첨단원예기술개발 연구센터 2002 연구보고서 Vol.6 No.-

이 연구는 포도의 생육기간에 사용되는 봉지의 특성이 포도의 생육과 당도에 어떤 영향을 미치는지 알아보고자 수행되었다. 포도의 생장에 영향을 미치는 많은 요소가 있지만 빛의 영향을 가장 많이 받는 것으로 알려져 있다. 그래서 미국과 유럽의 경우 다른 경제적인 이유도 있지만, 포도가 빛에 그대로 노출되도록 봉지를 씌우지 않는 무대재배를 한다. 국내의 경우는 식용 생과의 생산이 목적이기 때문에 포도의 생장기간에 병충해방지 및 과실의 착색효과 및 외관보호 등 여러 목적을 가지고 봉지를 씌워서 재배를 한다. 봉지의 구조에 따라서 포도의 생육과 당도에 영향을 미치게 되므로, 봉지를 만드는 원료인 섬유의 종류와 고해정도를 달리해서 봉지를 제작하여 포도를 생산했다. 실험실에서 제조한 종이로 재배한 포도의 당도가 기존에 사용되던 봉지로 재배된 포도보다 당도가 약 0.7 Brix 정도 높았다. 또한 침엽수 천연섬유와 침엽수 재생섬유, 침엽수와 활엽수 섬유를 혼합하여 만든 종이와 활엽수 섬유로 만든 종이가 빛의 투과성과 동도에 상반된 결과를 보였으며, 봉지가 빛을 많이 흡수할수록 당도가 높음을 알 수 있었다. 봉지내부의 온도변화를 측정한 결과 포도의 생육에 적정한 온도가 있음을 추정할 수 있었다.

광중합형 복합레진과 법랑질간의 마모특성 평가

백병주,이승영,이두철,김재곤 대한소아치과학회 2001 大韓小兒齒科學會誌 Vol.28 No.2

본 연구에서는 최근 치과임상에서 이용되고 있는 7종의 복합레진을 시험재료로 선택한 다음 법랑질과 복합레진 충전재가 대합하는 경우의 마모 양상을 조사하기 위해 광중합형 복합레진과 제2소구치 교두를 핀-디스크 구동 방식의 전동식 마모시험기에 고정한 다음 68.6N의 하중을 가한 상태에서 30,000 회전시켜 1.3×103m의 미끄럼 접촉을 가하였다. 마모를 평가하기 위해 복합레진의 종류에 따른 제2소구치 교두의 수직고경 변화, 시편의 두께 감소와 체적 손실 및 마모시험 전후의 표면을 주사전자현미경으로 관찰하였고, 표면경도가 마모도에 미치는 영향을 평가하기 위해 누프 경도를 측정한 결과, 다음과 같은 결론을 얻었다. 1. 누프 경도는 Speotrum 군에서 70.4로 가장 높고 Heliomolar 군에서 19.8로 가장 낮은 값을 보였으며, Tukey 다중범위검증법에 의해서 각 군 사이의 통계적 유의성을 검중한 결과, Spectrum군, Z100군 및 Clearfil AP-X군을 제외한 나머지 모든 군들 사이에서 상호간에 통계학적으로 유의한 차이를 보였다(p<0.05). 2. 법랑질의 내마모성은 microfill 형인 Heliomolar 군과 대합하는 경우에 가장 높게 나타났으며, 구치부용에서는 구상의 zirconia silica 미세 입자를 복합화한 micro hybrid 형의 Palpique 군에서 가장 높게 나타났다. 3. 복합레진의 연마성 마모에 대한 저항성은 필러의 평균 입경이 작고 미세 필러를 고밀도로 분산시켜 복합화한 hybrid형 복합레진에서 높게 나타나는 경향을 보였다. 4. 주사전자현미경 관찰 결과, 마모면에서는 필러의 돌출, 마멸과 탈락 및 기질레진의 미세 균열 진전과 표면층의 박리 등이 관찰되었다. This study was perfsrmed to evaluate wear characteristics of light-cured composites when opposed by human enamel. Seven light-cured restorative composites were selected and enamel cusps sectioned from premolars. All samples were stored in distilled water at 37℃ for 10 days 68.6 N of weight was loaded during the teat. The measurements of vertical loss of enamel cusps, weight loss and volume loss of composites, and SEM observations of the polished and abraded surfaces were made after 30,000 cycles. The results obtained were summarized as follows; 1. The highest hardness vague of 70.4 was observed in the Spectrum group and the lowest value of 19.8 was observed in the Heliomolar group. Results of Tukey test showed that an overall significant difference was indicated except the Spectrum, Z10O and Clearfil AP-X groups(p<0.05). 2. Enamel showed the good abrasion resistance against the Heliomolar group of microfilled composite and the Palplque Toughwell group containing the submicron hybrid type spherical fillers. 3. The abrasive wear resistance of hybrid composites was improved with the decrease of mean particle size and hybrid of submicron particle filler. 4. SEM observation of worn surfaces revealed the protrusion, attrition and missing of fillers, clacks developing and delamination in the matrix.

응급실에서 시행된 기관내 삽관의 현황

김병철,강보승,송형곤,이정훈,송근정,정연권 대한응급의학회 1999 대한응급의학회지 Vol.10 No.4

Background : The purpose of this study was to analyze the endotracheal intubation cases performed in the emergency department. Methods : We investigated retrospectively 326 cases of endotracheal intubation performed in the emergency department of a tertiary care center form April 1, 1998 to March 31, 1999. We focused on operators, medications used, its success rate and immediate complications, and the relationship between its success rate and medications. Results : Of 326 consecutive intubations, 193 patients(59.2%) were done by emergency medicine residents or attending physician. While 320 patients(98.2%) were successfully intubated, 6 patients could not be intubated and 2 patients underwent tracheostomy. Of 50 cases of intubations(15.3%) attempted with paralyzing agents, 48 cases were done with succinylcholine and 46 cases underwent by emergency physicians. Intubations with neuromuscular paralysis resulted in high success rates at the first attempt. Of 55 immediate adverse events were encountered in 47 patients(desaturation=17, bronchial intubation=15, hypotension=8, bradycardia=4, cardiac arrest=2, others=5). Conclusion : At this institution, paralyzing agents were used infrequently, but almost all of them were used by emergency physicians.