Pollen Viability of Common Buckwheat (Fagopyrum esculentum Moench.) in in vitro Germination and its Application to Male Gametophyte Isolation

Woo, Sun-HeeㆍKeun-Yook ChungㆍHeung-Tae, KimㆍYong-Gu, ChoㆍHong-Sig, KimㆍBeom-Heon, Songㆍ Chul-Won, Lee and Seung-Keun Jong 忠北大學校 農業科學硏究所 2004 農業科學硏究 Vol.21 No.-

-본문참고-

좌심실 이완기 장애 평가에서 Atrioventricular Plane Displacement의 임상적 중요성

정연손,조구영,이태유,김근숙,최창순,류제헌,최민호,박우정,임종윤,이영 대한순환기학회 2003 Korean Circulation Journal Vol.33 No.12

골프장의 잔디 토양에서 살균제 Tolclofosmethyl의 분해

정근욱,우선희,김흥태,사동민,김영기,홍순달,김재정,이재구 한국환경농학회 2004 한국환경농학회지 Vol.23 No.3

Tolclofosmethyl (TCFM) is heavily and annually applied to the turf soils of most golf courses in Gyeongju to control the fungi known to cause the disease brown patch. The soil samples used for the experiment was collected three weeks after the annual application at the end of May in the year 2002. The preliminary results obtained from this study demonstrated that the repeated field annual applications of TCFM to the turf soils of a golf course located in Gyeongju city in the southern area of Korea showed the enhanced degradation of the parent compound TCFM, especially in the surface (0~15 cm) soil rather than the shallow subsurface (15~30 cm) and deep subsurface (30~45 cm) soils, compared to the corresponding surface (0~15 cm) and shallow and deep subsurface (15~30 cm and 30~45 cm) soils of the untreated plot. It appears that microorganisms in the soil may be involved in the enhanced degradation of TCFM.

쥐노래미 Hexagrammos otakii의 난소 발달단계에 따른 간세포의 활성변화

정의영,강희웅,이근우 한국어류학회 2002 韓國魚類學會誌 Vol.14 No.2

암컷 쥐노래미(Hexagrammos otakii)의 생식소중량지수(GSI)는 9월에 증가되기 시작하여 11월에 최대에 도달하였다. 쥐노래미의 생식주기는 연속적인 5단계로 나눌 수 있었다: 성장전기(7월), 성장후기(7~8월), 성숙기(9~10월), 완숙 및 산란기(9~12월), 회복 및 휴지기(12~6월). 간중량지수(HSI)의 월변화는 GSI변화와 유사한 경향을 보였다. 성장전기에 다량의 지방적과 글리코겐 입자들이 간세포내에 존재하였다. 특히, 이 시기에 간세포는 헤마톡실린에 약하게 염색되었다. 성장후기부터 성숙기에 간세포의 크기는 증대되었으며 간세포질내 글리코겐과 지방적들의 양은 감소된 반면, 호염기성 물질 축적이 증가하였다. 산란기부터 회복 및 휴지기에는 간세포내에 호염기성 물질 축적이 감소된 반면, 다량의 지방적과 글리코겐입자가 축적되었다. 간세포내의 총단백질, 총지질 및 글리코겐함량(%)의 최대값은 각각 9월(성숙기), 7월(성장전기), 3월(휴지기)에 나타났다. The GSI in the female greenling Hexagrammos otakii, began to increase in September and reached a maximum in November. The reproductive cycle of the greenling can be divided into five successive stage: early-growing stage(July), late- growing stage(July to August), mature stage(September to October), ripe-and-spent stages(September to December), and recovery-and-resting stages(December to June). Monthly changes in the HSI showed a similar pattern with those of the GSI. In the early- growing stage, a lot of lipid droplets, and glycogen particles were present in the cytoplasm of hepatocytes. Especially, the cytoplasm of hepatocytes were weakly stained with hematoxylin. In the late- growing to mature stage, hepatocytes became large, and the amount of glycogen and lipid droplets in hepatocytes gradually decreased, while basophilic substance increased. In the spawning to recovery-and-resting stages, basophilic substances decreased in the cytoplasm of hepatocytes. However, lots of lipid droplets and glycogen were stored in the hepatocytes. The maxium total protein, lipid and glycogen contents(%) in the hepatocytes appeared in September(mature stage), July(early-growing stage) and March(resting stage), respectively.

파킨슨씨병 환자에 있어서 자가부신수질 이식술

정상섭,박상근,오성훈,김선호,윤도흠,박정수,양우익,최인준,안영수,김경환,박창일,김진수,이현철 대한신경외과학회 1988 Journal of Korean neurosurgical society Vol.17 No.6

Recent experimental studies and clinical cases have suggested that grafting tissue from the adrenal medulla into the brain may alleviate the symptoms of Parkinson's disease. Autologous adrenal medullary grafts into the striatum was performed stereotactically in two patients with Parkinson's disease. Both patients were bedridden preoperatively, but 4 months after the surgery both became ambulatory and one was even capable of returning to his job. Even though the number of cases was small⑵ and the follow-up period was short, this study shows that adrenal medullary transplantation into the striatum may have some beneficial effects in patient with Parkinson's disease. Further experimental and clinical trials are necessary to see whether this procedure will be a recommendable surgical treatment for patients suffering from Parkinson's disease.

구조용 데크플레이트를 사용한 연속 합성슬래브 부모멘트 영역의 균열거동

양근혁,고영우,정헌수 대한건축학회 2005 大韓建築學會論文集 : 構造系 Vol.21 No.1

The objective of this study W3" to evaluate the flexural cracking behavior in the negative moment region of continuous composite slabs reinforced with structural steel decking Main experimental variables were slab thickness and top bar ratio The slabs were tested in 2 continuous span with fixed-ends to get easy access to the negative moment region Also, Based on the distribution of interfacial bond stresses along a segment between two adjacent cracks was assumed as sin function, a simple method for predicting the spacing and width of cracks was suggested Results showed that crack spacing and width m the negative moment region of composite slabs depend mainly on the top bar ratio rather than slab thickness The predictions obtained from the proposed method arc m good agreement With experimental results

大學卒業定員制의 實施에 따른 學生生活 指導方案에 關한 硏究

崔根爀,張忠根,李相祐,張鎭吉,張大熙 충남대학교 1982 學生生活硏究 Vol.10 No.1

Higher education in Korea is faced with a new situation since 1981 when the government implemented a college graduation quota system designed to broaden the opportunities for higher education, alleviate the problem of the students who fail the entrance examination, and improve the quality of college graduates. The change of the system has brought about several serious problems including how to supply enough faculty members, how to provide enough educational facilities, and how to cope with the huge increase in the number of students, 30% more than graduation quota. The greatest single problem resulting from the implementation of college graduation quota system is the psychological and emotional unease aroused among the students, because 30% of those students with unsatisfying results must be banished from college before their graduation. This study aims to find effective measures for student guidance that each of the colleges can implement to help students adjust to the changed circumstances. After objectively investigating the problems from the various educational environments, from the recent students' views of college, and from the psychological and emotional unease arising in them by the fear of failing to graduate from their college because of implementation of the graduation quota system, a survey was conducted by means of a questionnaire composed of 40 questions and by means of personal interviews, 5,903 students, who are influenced by the graduation quota system, attending 19 public and private universities and colleges selected throughout the country. The data obtained from this survey were statistically processed with the help of the C. N. U. Computer Center, and the ratios of the responses to each of the questions were analyzed and calculated according to the distinctions of the total, sex, region, and major. The conclusions that the interrelations among the variant factors from each of the questions which were surveyed, analyzed and arranged have suggested are as follows : 1. The original purpose of graduation quota system should continually be clarified and communicated to all students and a concrete, specialized guidance system should be established to guide the minority of the students (13%) who don't fully understand the basic properties of higher educational institutions. 2. The institutions should provide enough educational facilities and supply enough faculty memebers to solve the problem of accomodating the large numbers of students. At the same time, they should suggest how students should learn positively and effectively to gain an expert knowledge, and how professors should gain public confidence in grade evaluation. Accompanying those measures, the government should develop a good policy to expand and distribute job opportunities to college graduates. 3. The admission quota should be controlled depending on the rate of naturally failed students, and then the students' unease and suppression caused by excessive competition can be relieved. In addition, it is advisable that the banished students should be allowed to transfer to University of the Air without regard to their grades. 4. An education devised to let students have a sound sense and way of thinking should be accompanied by a guidance system which their seniors, parents and society take part in. 5. An atmosphere conducive to sweet and well-rounded friendship among classmates should be created, sound extra-curricular activities should be encouraged and the number of students and adviser professor is in charge of should be lessened to a reasonable number.

류마티스 관절염 환자에서 발생한 Mycobacterium intracellulare에 의한 관절염 1예

박근우,권현희,정승혜,김경찬,최정윤,이영환 대한감염학회 2007 감염과 화학요법 Vol.39 No.1

비정형 항산균에 의한 근골격계 감염은 매우 드물며, 진단이 지연되는 경우가 많다. 저자들은 류마티스 관절염환자에서 수차례 스테로이드 주사 후에 생긴 M. intracellulare에 의한 관절염을 진단하고 수술적 치료없이 약물 치료만으로 좋은 결과를 보인 예를 경험하였기에 보고하는 바이다. Nontuberculous mycobacteria are ubiquitous organisms that are frequently present in the water, soil and animal reservoirs. Nontuberculous mycobacterial infections of the musculoskeletal system are rare and usually associated with predisposing factors, such as prior joint disease, trauma, use of intraarticular or oral corticosteroids, or an immunocompromised state. A sixty five-year-old patient with rheumatoid arthritis was hospitalized due to swelling on the left wrist. M. intracellulare was cultured from the aspirated joint fluid. The patient was successfully treated with clarithromycin, ethambutol, and rifampin. We report this case with review, emphasizing high suspicion for nontuberculous mycobacterial infection in patients with predisposing risk factors.

정상인에서 부분적 수면박탈이 수면구조에 미치는 영향

왕성근,이정규,이충숙,최하석,유남재,정인형,이선우 충남대학교 의과대학 지역사회의학연구소 1992 충남의대잡지 Vol.19 No.2

To identify the effects of partial sleep deprivation on the sleep structure, the authors performed polysomnographic study for 9 healthy young adults. The subjects were college students, ranging in age from 20 to 25 years, without personal past or present histories of medical, neurological, or psychiatric illness and suffering from current sleep disturbance or parasomomnias. Sleep records were analyzed according to the criteria of Rechtschaffen and Kales' manual and tried paired t-test. The results were summarized as follows. 1. As for sleep parameters, total sleep time(TST), REM latency and REM duration were not changed significantly during deprivation period and recovery period compared with baseline. Sleep efficiency increased significantly during deprivation period and recovery period compaired with baseline, and sleep latency and WASO were shortened significantly during deprivation period and recovery period compared with baseline. 2. As for sleep structure, 1) The absolute value(minutes) of stage 1 decreased significantly during deprivation period and first recovery night compared with baseline, and the relative value(percentage) of stage 1 decreased significantly during deprivation period and recovery period compared with baseline. 2) The absolute value(minutes) of stage 2 decreased significantly during deprivation period compared with baseline, and the relative value(percentage) of stage 2 decreased significantly during deprivation period and first recovery night compared with baseline. 3) The absolute value(minutes) of slow wave sleep were not changed significantly during deprivation period and recovery period compared with baseline, and the relative value(percentage) of slow wave sleep increased significantly during recovery period compared with baseline. 4) The absolute value(minutes) of REM sleep decreased significantly during deprivation period compared with baseline, and the relative value(percentage) of REM sleep decreased significantly in the first deprivation night but, were not changed significantly during recovery period compared with baseline.

先天性無顆粒細胞症에 있어서 淋巴球 및 顆粒細胞의 變化에 關한 硏究

李謹洙,玄瑀,石正宇 中央醫學社 1973 中央醫學 Vol.25 No.5

An infant with the rare syndrome of congenital agranulocytosis, eosinophilia, and recurrent infections is reported. Death resulted from overwhelming pneumonia .at the age of 18 months. No cause for hematologic abnormality was found. -Provocation tests utilizing, typhoid vaccine and buffy coat of chronic myelocytic leukemia yielded no alteration in the differential counts of leukocytes.