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姜永周,河璡桓,金永東,宋大鎭,金洙賢,金成洙 제주대학교 1990 논문집 Vol.30 No.-
To establish the way of processing of Gae-Woo jeot which used abalone intestine that has not been systematically used compare to its characteristic taste and fame as main ingredient and to develop as a local tourist good, the change of constituents the quality of salted fish products suring Gae-Woo jeot fermentation were examined. The results are as follows. 1. In the organoleptic test, Gae-Woo jeot which fermented through 65 days were dominant and the group of 105 salkt concentration were better than that of 20%. It was the best of 10% salted products to add small abalone. Both law salted(10%) and high salted (20%) Gae-Woo jeot were similar in general constityents, nutrients and texture. 2. Compositions of highly unsaturated acid were farely high to 45.6% and 46.1% in small abalone added froup and top sheel added group respectively. during 3 months fermentation low decreasing rate of 3~4% was shown. EPA(eicosapentaenoic acid) was approximately 7~8% and DHA(docosahexaenoic acid) was extremely low to be less than 0.3%. 3. In the changes General composition and pH, pH was within range of 4~5.5, 9~12% in protein, 3~5% in total sugar, 0.5~1% in lipid and approximately 1% in ash. 4. Gae-Woo jeot can be made with 10% low salting method, and 10% group gets all the better for taste, small abalone adding is recommended. 5. When low salt fermented fish of 10% is processed, it is highly recommended to put sorbitol, ethyl alcohol, lactic acid or other humectant for better taste and longer storage and good quality food additives must be developed for tourist and presently applied mil ordering transportation must be sought.
불순물 첨가 BGO 섬광체 단결정의 육성과 열형광 특성
김성철,김중환,김종일,정중현,도시홍,김기동,이대원 동의대학교 기초과학연구소 1996 基礎科學硏究論文集 Vol.6 No.1
Eu or Fe doped BGO scintillation crystals were grown by Czochralski method. In order to get information about traps in the grown BGO crystals, we measured trap parameters including activation energy, frequency factor and the kinetic order of thermoluminescence, and compared such parameters with thermoluminescent characteristics of pure BGO scintillation crystals. In addition, optical transmittance of the grown BGO crystals was measured.
생체분해성 망막압정을 이용한 망막고정에 대한 실험적 연구
김용백,민병무,김창식,박근성,김승영,길숙종,조항진,이성복,노승무,송규상,강대영,조준식,양준묵,정경수,최선웅,이진호,김학용,인현빈 충남대학교 의과대학 지역사회의학연구소 1998 충남의대잡지 Vol.25 No.1
Biodegradable retinal fixation devices obtain mechnical fixation of the retina with desirable chorioretinal scarring and with the potential for local, sustained release of antimetabolites and steroids to inhibit proliferative vitreoretinopathy. We manufactured a biodegradable retinal tack with barb that was designed in order to prevent intrusion from implantation of retinal tacks. This study was carried to evaluate the efficacy for retinal fixation and the capability for sustained release of drugs with a newly designed biodegradable retinal tack Biodegradable retinal tacks were made of polymers of glycolic acids and were designed with barbs in a shape to prevent the disinsertion. Biodegradale retinal tacks are divided into 3 parts, a conical portion that is inserted into the sclera, a cylinder portion that remains in the vitreous, and a neck portion between the pin and the cylinder. The tapered conical end was manufactured to allow easy insertion through the retina and choroid into the sclera. A cylinder portion was manufactured with a tapered angle that fixes firmly into the orifice of 19 gauge spinal needle. A neck portion, 0.4 mm in diameter, was designed to prevent disinsertion from following implantation of retinal tack. The applicator was a 19 gauge spinal needle and its orifice was prepared to 15°angle to accept the tapered cylinder portion of the retinal tack. The retinal tacks, secured in the needles, were passed through the formed vitreous and inserted into the retina, choroid, and sclera and were released by pushing the internal needle, usually within 2-3mm of the medullary ray of the posterior rabbit retina A retinal tack was placed in each of 8 pigmented rabbit eyes. Slit-lamp biomicroscopy, indirect ophthalmoscopy and fundus photography were performed periodically from 1 day to 8 weeks after surgery. Eight eyes were enucleated and studied by light microscopy at 8 weeks. Biomicroscopic evaluation of the animals revealed edemas adjacent to the retinal surfaces immediately after insertion of the biodegradable retinal tacks in all the animals. These edemas disappeared after 1 week. The first noticeable change in the size of retinal tacks was shown after 2weeks. The size of the retinal tacks gradually got smaller, decreasing to about one-half at 4 weeks and about one-third at 8 weeks. All retinal tacks remained in inserted places without any movement for an 8 week period. On light microscopy, epiretinal proliferations were seen to extend into the vitreous cavity. Cellular capsules that lined the inner aspect of the scleral defect caused by tack insertion were found. However the adjacent retina had a normal cytologic appearance and architecture in all specimens. We manufactured a biodegradable retinal tack that is designed to prevent intrusion from implantation of retinal tacks. All biodegradable retinal tacks reduce in size with time, but no retinal tacks extruded from the inserted place. The newly designed biodegradable retinal tack can be used for retinal fixation and may be used as a vehicle for the introduction of pharmacologic agents to prevent the cellular events that promote proliferative vitreoretinopathy.
김병우,류지근,박우진,박계원,김미정,임지은,백대현,최재덕,최윤호,이가현,이관,김덕수 東國大學校醫學硏究所 2002 東國醫學 Vol.9 No.1
수면, 기억 그리고 학습의 연관성은 실제 매우 복잡하다. 많은 연구에도 불구하고 명확한 연구결과는 아직 없다. 우리는 이 연구에서 평소와는 달리 시험 전날 수면 변화 양상이 집중력에 어느 정도 영향력을 미치는지 알아보고자 하였고, 이를 이용해 효율적인 수면 관리를 할 수 있는 기초자료로 삼고자 하였다. 동국대 의대 본과 1학년생 중 지원자 30명과 본과 2학년생 10명을 대상으로 평상시 상태와 시험 직후 수면이 부족한 상태에서 각각 K-PES TEST를 실시하여 총 8항목에 걸쳐 암기력, 판단력, 단순반응의 변화정도를 검사하였다. 또 설문조사를 병행하여 결과에 영향을 미칠 수 있는 다른 인자들도 파악하였다. 수면량에 대한 부호 숫자 짝짓기(순간 판단력)을 검사한 결과, 인간의 최대 생리학적 기능은 꼭 수면부족에 의해 좌우되는 것은 아니다. 그러나, 수면감소는 피로를 증가시키고, 동기부여를 감소시키나 단, 새로운 사실을 학습하는 데에는 큰 영향을 끼치지 않는다. 즉, 수면부족으로 장시간 깨어있는 것은 정확성과 반응성을 떨어뜨린다. 흡연에 대한 부호 숫자 짝짓기(순간 판단력)을 검사한 결과, 니코틴의 수면에 대한 상호관계는 알려지지 않았고, 인간의 감정이나 의식, 인식에 영향을 주는 것으로 알고있지만, 장기적은 측면에서 흡연이나 알코올은 인식능력과 무관한 것 같다. 카페인에 대한 숫자 외우기(암기력)검사 결과, 카페인은 spacial selective attention에는 특별한 영향을 주지 않지만 지각과정이나 주의 집중에 큰 효과를 주며, 인간의 의식 수행에 긍정적인 효과를 준다. 즉 카페인은 활력, 혼란, 피로상태를 변화시키고 visual analog scales에서 휴식상태에 가까운 양상을 나타낸다. 또 48시간 동안 수면을 취하지 않은 사람에게 카페인은 집중력과 장시간의 좋은 기분을 유지하게 하였다. 그러나 규칙적, 비규칙적으로 먹는 사람간에는 인지수행력의 차이를 보이지 않으며 상용자에서는 상당한 내성이 보인다. 수면패턴에 대한 숫자 더하기(순간 판단력)검사 결과, 집중력은 수면패턴에 의해서도 영향을 받고, 수면패턴이 바뀌게 되면 순간판단력을 저하시킨다. This study was performed to evaluate relationship of sleep and attention, and to control sleep effectively. We conducted a K-PES test of 40 medical students. K-PES contains eight elements, for example, simple response, selective response, color pairing, OddEven discrimination, number addition, number-symbol matching, memory, right-tapping, left tapping. Through these, we tested changes of memory, judgement, simple response. And we conducted a questionnaire survey to exclude bias. Results are as follows. As a results of number-symbol matching test, we know that sleeplessness is not complete responsible for physiologic function for humans. But, decreased sleep increases fatigue and decreases motivation, but no influence on learning new materials. So, long term sleeplessness decreases precision and responsibility. As a results of number-symbol matching test on smoking, a relationship of nicotine and sleep is not certain. A point of view in long term period, smoking and drinking is not related cognition, even if we know that those influence mood, consciousness and cognition. As a results of memory work test on caffeine, caffeine does not influence spacial selective attention, but mainly does perception, attention and consiousness process. Namely caffeine changes energetic activities, chaos, fatigue states and shows resting state in visual analog scales In sleeplessness for 48 hours, caffeine produced attention and good mood for a long time. But, in case of cognitive process no significance shows in regular or irregular diet. Regular diet shows high resistance. As a results of number addition test on sleep patterns, seep patterns influence attention, changes of sleep patterns decrease a moment judgement.
Clinical Outcome of Modified Cervical Lateral Mass Screw Fixation Technique
Kim, Seong-Hwan,Seo, Won-Deog,Kim, Ki-Hong,Yeo, Hyung-Tae,Choi, Gi-Hwan,Kim, Dae-Hyun The Korean Neurosurgical Society 2012 Journal of Korean neurosurgical society Vol.52 No.2
Objective : The purpose of this study was 1) to analyze clinically-executed cervical lateral mass screw fixation by the Kim's technique as suggested in the previous morphometric and cadaveric study and 2) to examine various complications and bicortical purchase that are important for b-one fusion. Methods : A retrospective study was done on the charts, operative records, radiographs, and clinical follow up of thirty-nine patients. One hundred and seventy-eight lateral mass screws were analyzed. The spinal nerve injury, violation of the facet joint, vertebral artery injury, and the bicortical purchases were examined at each lateral mass. Results : All thirty-nine patients received instrumentations with poly axial screws and rod systems, in which one hundred and seventy-eight screws in total. No vertebral artery injury or nerve root injury were observed. Sixteen facet joint violations were observed (9.0%). Bicortical purchases were achieved on one hundred and fifty-six (87.6%). Bone fusion was achieved in all patients. Conclusion : The advantages of the Kim's technique are that it is performed by using given anatomical structures and that the complication rate is as low as those of other known techniques. The Kim's technique can be performed easily and safely without fluoroscopic assistance for the treatment of many cervical diseases.
자궁내막암 환자에서 복강경하 자궁적출술과 복식 자궁적출술의 비교 연구
김종혁,이상수,김천복,김대연,김용만,김영탁,목정은,남주현 대한부인종양 콜포스코피학회 2003 Journal of Gynecologic Oncology Vol.14 No.4
목적 : 자궁내막암 환자에서 시행된 복강경 수술의 임상적 결과를 평가하고 수술적 지표 및 재발률에 대하여 기존의 개복 수술과 비교하고자 하였다. 연구 방법 : 1997년 8월부터 2003년 11월까지 저자들은 임상적 병기 I기인 79명의 자궁내막암 환자에서 복강경하 자궁적출술과 골반 및 부대동맥 림프절 절제술을 시행하였다. 총 79명의 환자 중, 수술적 병기 I기와 II기로 판명된 74명의 환자를 연구 대상으로 하였다. 대조군으로는 같은 기간 동안에 개복수술을 시행한 환자중 복강경 수술군과 병기가 같은 168예를 선정하였다. 결과 : 평균 수술 기간, 수혈량은 양군에서 비슷하였으며, 평균 재원 기간은 복강경 수술군에서 유의하게 짧았다. 수술전후 및 만성 합병증의 발생은 개복 수술군에서 유의하게 증가되었으며, 획득한 림프절의 수는 복강경 수술군에서 유의하게 더 많았다. 복강경 수술군에서 1예, 개복 수술군에서는 2예에서 재발하였고, 2년 무병 생존률은 복강경 수술군과 개복 수술군에서 각각 97.5%와 98.6%으로 유의한 차이는 관찰되지 않았다. 결론 : 자궁내막암 치료로서 복강경 수술은 기존의 개복술을 대신할 수 있는 안전하고 효과적인 시술 방법이다. 개복 수술과 비교해 볼 때, 재발 및 생존율 면에서 차이가 없었지만, 향후 전향적이고 더 오랜 추적기간을 갖는 연구가 필요하다고 사료된다. Objective : To evaluate the outcomes of laparoscopic surgery and to compare surgical parameters and recurrence rate of these with those of conventional abdominal surgery in patients with endometrial cancer. Methods : From August 1997 to November 2003, we have performed 79 cases of LAVH (laparoscopically assisted vaginal hysterectomy) with or without lymph node dissection. Laparoscopic approach was adapted in patients with FIGO clinical stage I by imaging study. Of the 79 patients, 74 patients who were proved to be surgical stage I and II were enrolled in this comparative study. As a control group, We selected 168 cases for the laparotomy group of the same stages. Results : The mean duration of surgery, the amount of blood transfusion and hemoglobin chamges were similar in both the laparoscory and the convertional alparotomy group. The mean duration of hospital stay was significantly shorter in patients treated by laparoscopic surgery (10.2 vs. 15.5 days). The number of lymph node obtained was significantly higher in the laparoscopy group. Two year recurrence-free survival rates were 97.5% in laparoscopy group and 98.6% in laparotomy group (p=0.763). Conclusion : Laparoscopic surgery for the treatment of early stage endometrial cancer is safe and effective altematives in terms of perioperative complications. Overall and recurrence-free survival did not differ significantly in both groups however long term risk for recurrence and survival has yet to be defined.
비혈연간 동종골수이식에 의해 치료된 중증 재생불량성빈혈 1예
김현중,이홍기,이방훈,이창근,이종태,정현식,김원석,윤성수,강원기,박근칠,김대식,고영혜,박찬형 대한조혈모세포이식학회 1997 대한조혈모세포이식학회지 Vol.2 No.1
비혈연간 동종골수이식은 혈연간 동종골수이식이 불가능한 환자에서 기존의 면역역제요법으로 효과가 없었던 경우나 재발한 경우에 적응증이 될수 있다. 이식 거부와 이식편대숙주병의 발생이 골수 이식의 성공률을 감소시키므로, 보다 강력한 conditioning regimen의 사용과 T cell이 제거된 골수를 사용하는 것이 필요하다. 기존의 high dose corticosteroid나 cyclosporine에 대하여 불응성인 이식편대숙주병의 치료를 위해서 ATG와 Mycophenolate mofetil (Cellcept®) 의 사용이나 Tacrolimus, Methotrexate와 같은 다른 면역억제제치료를 고려해 볼 수 있다. It is known that allogenic bone marrow transplantation is the most effective treatment for aplastic anemia. However, this treatment is only applicable to a minority of patients because the proportion of patients who have HLA-matched siblings about 25% to 30% of all the aplastic anemia patients. In the case of the absence of HLA-matched donor, unrelated allogenic bone marrow transplantation is considered. However, (because of severe acute and chronic GVHD and graft failure) the success rate of this approach is only 20~30%. Recently, it was reported that increased immunosuppressive condition combined with T cell depletion of the marrow graft would result in greater success. There was no case of successfully treated aplastic anemia patient by unrelated allogenic bone marrow transplantation in Korea. Here, we report a case of severe aplastic anemia successfully treated with unrelated allogenic bone marrow transplantation.
[논문]Operational Characteristics of CO2 Laser Adopted by Superposing-Discharge
Hee-Je Kim,Hyun-Ju Chung,Byoung-Dae Min,Jong-Han Joung,Sung- lun Park 釜山大學校生産技術硏究所 2003 生産技術硏究所論文集 Vol.62 No.-
오늘날 현저한 CO2 레이저의 응용 추세에 발맞추어 보다 다양한 형태의 출력 제어 기술이 대두되고 있다. 본연구에서는multi-Pulse Superposing-Discharge 기술을 이용하여 다양한형태의 CO2 레이저의 펄스를 성형 하였다. 펄스 성형을 위한 방법으로 PIC one-chip microprocessor를 이용하여 삼중 PFN 모률의 SCR을 각각 고유의 지연시간을 가지도록 제어하였다. 실험에 사용된 삼중 PFN 모률의 전원 회로는 각각 캐패시터 인덕터,SCR,고압 펄스 트랜스 그리고 고압 트랜스 2차측에 브릿지 정류기로 구성 하였다. 고압 펼스 트랜스의 1차측을 제어하므로서 PFN 모률의 동작을 저 전압에서 수행 할 수 있다. 트랜스의 2차측에 연결된 전파 정류기는 펄스 에너지를 부하에 지속적으로 전달한다. 본 연구에서는 삼중 PFN 모률의 각각의 SCR을 다른 시간 가격을 두고 트리거 하므로서 다양한 Long pulse shaping을 실현하였다. 또한 약 250-1000μs 의 주기를 가지는 다양한 펄스형 레이저 빔을 얻었다.