백서에서 치아회분말과 연석고의 혼합매식술에 관한 실험적 연구:혼합 비율에 따른 비교

조재오,여환호,김영균 大韓顎顔面成形再建外科學會 1996 Maxillofacial Plastic Reconstructive Surgery Vol.18 No.1

This study was performed to determine the ideal mixing ratio of toothash and plaster of Paris. The histopathologic and histomorphometric study of bone response of five implant materials, toothash(Group A), tooth and plaster mixture, mixing ratio due to weight 2 : 1(Group B), 3 : 1(Group C), 4 : 1(Group D), and plaster Paris(Group E), were performed in rat calvarial defect. No sign of extensive inflammatory reaction was defected. Newly-formed bony ingrowth occurred in all experimental groups except for group E at 12 weeks after operation. Bone was deposited directly on the surface of implant materials. The highest rate of direct bony union between implant material and newly-formed bone occurred with the group B, followed group C, D, and A.

레니텍^(�) 정(말레인산 에날라프릴, 10mg)에 대한 에나레이스 정의 생물학적 동등성

조성희,하용화,홍성제,서성훈,류재환,김동현,이경태 한국약제학회 2003 Journal of Pharmaceutical Investigation Vol.33 No.3

The purpose of present study was to evaluate the bioequivalence of two enalapril maleate tablets, Renitec^(™) (MSD Korea Ltd.) and Enalace ^(™) (Welfide Korea Ltd.), according to the guidelines of Korea Food Drug Administration (KFDA). Twenty-four normal male volunteers, 22.33±2.55 year in age and 66.54±8.30 ㎏ in body weight, were divided into two groups and a randomized 2×2 cross-over study was employed. After two tablets containint 10 ㎎ of enal-april maleate per tablet wre orally administered, blood was taken at predetermined time intervals and concentrations of enalapril in plasma were determined using LC-MS-MS. Pharmacokinetic parameters such as AUC_(t), C_(max) and T_(max) were calculated and ANOVA test was utilized for the statistical analysis of the parameters using logarithmically transformed AUC_(t) and C_(max) untransformed T_(max). There were no sequence effects between two formulations in these parameters. The 90% confidence intervals for the log transfored data were acceptance range of log0.8 to log1.25(e.g., log1.02∼log1.14 and log1.03∼log1.19 for AUC_(t) and C_(max), respectively). The major parameters, AUC_(t) and C_(max), met the criteria of KDFA for bioequivalence indicating that Enalace^(™) tablet is bioequivalent to Renitec^(™) tablet.

제79회 전국체전 부산팀전력에 관한 고찰

조재기,성기환,안철순 東亞大學校附設스포츠科學硏究所 1998 스포츠科學硏究論文集 Vol.16 No.-

Focused on the performance of the Pusan team at this year's 79th National Sports Festival, this paper aims to analyze the results of the team by each event through the past 5 years from 1994 to 1998. This year Pusan stood at the 6th again in 8 years. This result is a crisis as the city is scheduled to host the 2000 National Sports Festival and the 2002 Asian Games. The following problems can be pointed out: First, slow development of school sports. From 1991 through 1994, elite-oriented school sports turned into club-associated sports for fun and play. Therefore, some relatively harder events became unpopular and it was more difficult recruiting excellent athletes. Tough financial conditions of schools also contributed to slowing the development of school sports. Second, budgetary lack. The budget of the Pusan Sports Association ranks the 10th among 16 domestic cities and provinces. In particular, the expenses for reinforced training amounting to 200,000 won per person (recording the 14th) leave much for improvement. It's getting harder and harder to purchase expensive equipment. So how to secure enough finance is the most urgent task. Third, tougher economic conditions of Pusan. Owing to the IMF crisis, a lot of companies in Pusan have gone bankrupt. As a result, some athletic associations go without their presidents. So missing are financially supporting athletes and properly collecting data. Henceforth, for the balanced development and high performance of Pusan sports at the National Sports Festival, the above problems should be solved. Let me suggest some guidelines: 1. School sports need to be activated above anything else. In fact, Pusan's high school teams reaped all but the lowest marks this year. We have to enlarge financial grants to high schools, invest in some specialized events, manage the representative reserve system, and expand the support of promising athletes. 2. A practical budget ought to be made, including the rise of reinforced training expenditure up to 300,000 to 400,000 won per athlete. For example, the interests of the sports promotion fund (about 4 billion won) held by the Pusan Sports Association might as well be used as special accounts. 3. Some concerned facilities (sports fields and public athletic parks) and equipment (especially for sea sports) have to be secured. 4. More vigorous support of and investment in college and industrial terms is needed for the bright picture of Pusan sports in the 2000s. 5. As sports administration also goes Seoul-oriented, fresh leaders are needed to run the otherwise weakening municipal sports organization.

만성 화농성 중이염의 세균학적 고찰

조남순,이영훈,강기훈,최제환,송태현,이병돈,장혁순,강주원,김연준 순천향의학연구소;Soonchunhyang Medical Research Institute 2000 Journal of Soonchunhyang Medical Science Vol.6 No.1

Background and Objectives : Chronic suppurative otitis media is one of the frequent diseases in otolaryngologic field. It is important to choose of antibiotics in the management of infectious disease. But the organisms in infections have been changed and resistance to antibiotics has been grown as the development of antibiotics has been achieved. And so it has been necessary to recognize the changes of organisms and resistance in antibiotics. Our study was performed to identify the pathogens isolated from discharges in chronic otitis media and evaluate the antibiotic agents, to recognize the change of to resistance to·antibiotic agents and to use the appropriate anitiotics. Materials and Methods : Retrospectively, authors reviewed the backeriologic study of 114 cases of chronic suppurative otitis media who visited the Department of Otolaryngology, Soonchunhyang University in Seoul from Nov. 1996 to Oct. 1999 and analyzed 101 strains and its sensitivity test to various antibiotics. Result : In 93 cases in which pathogenic organism was isolated, single infection was 85 cases(91.4%) and mixed infection was 8 cases(8.6%). The most frequent pathogenic organism was Staphylococcus aureus(59.4%), Pseudomonas aeruginosa(13.9%), Providencia(4.8%), Alcaligenes(3.0%) and Streptococcus pneumoniae(2.9%) were the next. Methicilline-Resistance Staphylococcus aureus was 34 cases(57.6%) of Staphylococcus aureus. Staphylococcus aureus was sensitive to Vancomycin(96.7%), Trimethoprim-Sulfamethoxazole (57.6%), Cefuroxime(42.4%) and Ciprofloxacin(40.7%) but resistant to Penicillin(94.9%). Pseudomonas aeruginosa was sentitive Amikacin(100%), Ciprofloxacin(100%) and Gentamicin(67%). Conclusion : As MRSA recently was wide spread in community accquired infection as well as nosocomial infection, we must consider strict control of MRSA.

지역별 농지가격의 변동 : 그 요인과 영향

조재환,강승원 우송대학교 1997 우송대학교 논문집 Vol.2 No.-

The objective of this study is to find out the regional farmland price determination factors and their effects on farmland price fluctuatio. The study analyzes the long run equilibrium relationship and the innovation accounting analysis of regional farmland prices and its determinating factors. This empirical result will be helpful to set up the Farmland Utilization Inprovement Program for Korean agricltural structural adjustment in the future.

韓國企業의 會計技法選擇 誘引分析

曺廷煥,鄭載乙 慶北大學校 經濟經營硏究所 1994 經商論集 Vol.22 No.1

Original Articles : Clinical significance of occult hepatitis B virus infection in chronic hepatitis C patients

( Jae Young Jang ),( Soung Won Jeong ),( Sung Ran Cheon1 ),( Sae Hwan Lee1 ),( Sang Gyune Kim ),( Young Koog Cheon ),( Young Seok Kim1 ),( Young Deok Cho1 ),( Hong Soo Kim ),( So Young Jin ),( Yun Soo 대한간학회 2011 Clinical and Molecular Hepatology(대한간학회지) Vol.17 No.3

Background/Aims: We investigated the frequency of occult hepatitis B virus (HBV) infection in anti-hepatitis C virus (HCV)-positive individuals and the effects of occult HBV infection on the severity of liver disease. Methods: Seventy-one hepatitis B virus surface-antigen (HBsAg)-negative patients were divided according to their HBV serological status into groups A (anti-HBc positive, anti-HBs negative; n=18), B (anti-HBc positive, anti-HBs positive; n=34), and C (anti-HBc negative, anti-HBs positive/negative; n=19), and by anti-HCV positivity (anti-HCV positive; n=32 vs. anti-HCV negative; n=39). Liver biopsy samples were taken, and HBV DNA was quantified by real-time PCR. Results: Intrahepatic HBV DNA was detected in 32.4% (23/71) of the entire cohort, and HBV DNA levels were invariably low in the different groups. Occult HBV infection was detected more frequently in the anti-HBc-positive patients. Intrahepatic HBV DNA was detected in 28.1% (9/32) of the anti-HCV-positive and 35.9% (14/39) of the anti-HCV-negative subjects. The HCV genotype did not affect the detection rate of intrahepatic HBV DNA. In anti-HCV-positive cases, occult HBV infection did not affect liver disease severity. Conclusions: Low levels of intrahepatic HBV DNA were detected frequently in both HBsAg-negative and anti-HCV-positive cases. However, the frequency of occult HBV infection was not affected by the presence of hepatitis C, and occult HBV infection did not have a significant effect on the disease severity of hepatitis C. (Korean J Hepatol 2011;17:206-212)

흐름 計算의 數値 積分法에 관한 硏究

조원철,李元煥,송재우 연세대학교 산업기술연구소 1977 논문집 Vol.7 No.1

A simple rapidly converging iterative method of computing gradually varied steady flow profiles in open channels of any shape, prismatic or nonprismatic, is presented. The method is also applicable to spatially varied steady flow. It is not necessary to determine the shape of the expected profile or the type of flow in advance to proceed with the solution. Computations can proceed either upstream or downstream, regardless of the type of flow, once the channel, discharge, and the initial depth of flow are specified. The procedure for hand computation is illustrated by an example and a FORTRAN program is given.

배구의 A 속공시 신체분절 각도와 각속도에 대한 숙련자와 미숙련자간의 운동학적 비교분석

조필환,김재필 한국스포츠리서치 2004 한국 스포츠 리서치 Vol.15 No.1

This study was conducted to investigate the biomechanical charateristics of A-quick in the volleyball spiking to improve the technique of the volleyball spike. The subjects were six male college and high school athletes. The motions of volleyball spike were filmed by using two Panasonic D-5100 S-VHS Video Cameras. The mechanical factors were angle and angular velocity of body segments in the upper limbs and the lower limbs. The conclusions were as follows; 1. The skilled showed larger than the unskilled in angle of the shoulder joint on impacting in A Quick-Spike. 2. The skilled showed smaller than the unskilled in angle of the elbow joint on impacting in A Quick-Spike. 3. The skilled showed smaller than the unskilled in angle of the wrist joint on impacting in A Quick-Spike. 4. The skilled showed larger than the unskilled in angle of the hip joint on all phase in A Quick-Spike. 5. The skilled showed smaller than the unskilled in angle of the knee joint on getting take-off in A Quick-Spike, and similar on getting take-off and impacting. 6. The skilled showed larger than the unskilled in angle of the ankle joint on getting take-off in A Quick-Spike. 7. The skilled showed faster than the unskilled in angular velocity of the shoulder joint, elbow joint, wrist joint on on impacting in A Quick-Spike.

방사선치료 조사영역 내에 발생한 설암 환자에서 입체조형방사선치료 경험 : 증례보고

조문준,장지영,김기환,김병국,송창준,김준상,김재성 충남대학교 암연구소 2003 암연구소 업적집 Vol.3 No.-

Objectives : We report an interim result of conformal radiotherapy in a patient with early stage cancer at the base of the tongue, which developed in a previously irradiated area. Materials and Methods : A 64-year-old male patient was diagnosed with T4NOMO supraglottic cancer. He received 72Gy of radiation therapy from 21 November 1988 to 24 February 1989. He had local failure and underwent a salvage total laryngectomy on 28 August 1989. Subsequently, he did well. In early 1999, he suffered from throat pain. He had a 2.5cm ulcerative mass at the base of his tongue, in the area that had been irradiated previously. Biopsy showed squamous cell carcinoma. After workup, he was diagnosed with base of tongue cancer with T2NOMO. Surgery was not feasible because the morbidity was not acceptable. Since it was difficult to re-irradiate the area with a curable dose using conventional 2D radiation therapy with an acceptable morbidity, we decided to try conformal radiotherapy. We used 7 static beam ports with field sizes from 7×6.4 to 8×8㎠, using 6 and 10MV photons. The fractionation regimen was 1.8Gy, 5 times per week. He received 64.8Gy in 36 fractions from 9 April 1999 to 1 June 1999. Results : In the 21 months since radiotherapy, the patient has not experienced any acute or chronic complications, such as xerostomia. He experienced relief of pain shortly after the start of radiotherapy, showed a complete response, and is still doing well. Conclusion : Conformal radiotherapy can be used to treat cancer that develops within a previously irradiated field, with curative intent.