서울의 Penicillinase Producing Neisseria gonorrhoeae 발생빈도(1998)

김재홍,김준호,반재용,이정우,황성주,정준규,정성태,강진문,조흔정,홍창의,정혜신,이한승,김이선,이봉길,이종호,선영우,한기덕,윤성필,이성훈,안종성,박석범,문승현,조항래,김형섭,류지호,황재영,박준홍,손상욱 한양대학교 의과대학 2001 한양의대 학술지 Vol.21 No.1

In recent years, gonorrhea has been pandemic and remains one of the most common STDs in the world, especially in developing countries. For the detection of a more effective therapeutic regimen and assessing the prevalence of Penicillinase Producing Neisseria gonorrhoeae(PPNG), we have been trying to study the patients who have visited the Venereal Disease Clinic of Choong-Ku Public Health Center in Seoul since 1980 by menas of the chromogenic cephalosporin method. In 1998, 93 strians of N. genorrhoeae were isolated, among which 60(64.5%) were PPNG. The prevalence of PPNG in Seoul, which had been decreased to 39% in 1996 after a peak of 74.3% in 1993, is increased to 64.5% in 1998.

내시경적 점막절제술로 치험한 식도 과립상 세포종 1례

강혁주,김성욱,최석진,이중현,장재식,서영범,윤병구,박건욱,김성자,김용섭,강승완,이구,양창헌,이창우,김욱년,이광헌,서정일 동국대학교 의학연구소 2000 東國醫學 Vol.7 No.-

과립상 세포종은 Schwann 세포 기원으로 생각되며 인체에 비교적 드물게 발생한다. 과립상 세포종은 전신 어느 곳에서나 발견될 수 있으나 주로 혀, 구강, 피부 혹은 유방 등에서 호발하며 드물게 위장관에서 발견된다. 위장관에서는 식도에서 가장 호발하며 다음으로 위, 대장 순이다. 과립상 세포종은 대부분, 특히 위장관에서는 양성이며 소수의 악성 병변이 보고되었다. 이러한 이유와 함께 수술 전의 진단이 어렵기 때문에 과립상 세포종에 대한 근본적인 치료는 현재까지 외과적 절제술이다. 최근에 시도되는 치료방법들로는 내시경적 레이저 치료, 용종절제술, 내시경적 점막 절제술 등이 있다. 저자들은 상부 소화관 내시경검사를 시행하여 식도 과립상 세포종을 진단하고 내시경적 점막 절제술을 시행하여 합병증 없이 퇴원하여 현재 재발없이 경과 관찰중인 1례를 경험하였기에 보고하는 바이다. Granular cell tumors, which occur infrequently, are probably of Schwann cell origin. They can occur almost anywhere in the body but usually affect the tongue, oral cavity, skin, or breasts and are rarely found in the gastrointestinal tracts. The esophagus is the most frequent gastrointestinal site, followed by the stomach and the colon. Granular cell tumors are generally benign, especially in the gastrointestinal tract, some malignant lesions have been reported. For this reason, and also because preoperative diagnosis is difficult, the standard treatment for granular cell tumor has until now been surgical excision. In recent years, other therapeutic methods is endoscopic laser therapy (ELT), polypectiomy, endoscopic mucosal resection (EMR). We report a case of esophageal granular cell tumor which was diagnosed by an endoscopy and managed using an endoscopic mucosal resection without complication.

괴사후성과 비괴사후성 간경변증에서 원인별 주석교질 (^99mTc-tin colloid) 간스캔의 차이

이헌영,허승식,이강욱,정현용,김삼용,신영태,김영건,노흥규 충남대학교 의과대학 지역사회의학연구소 1992 충남의대잡지 Vol.19 No.2

The differences of the liver scintigraphic features between postnecrotic and nonpostnecrotic liver cirrhosis were studied for 69 patients. Degrees of mottling and splenomegaly were no different between two groups but shrinked form was more frequent finding in postnecrotic type(23:10), and normal shape & enlarged left lobe with shrinked right lobe were relatively dominant in non-postnecrotic group(15:6, 10:2). Grade of extrahepatic uptake of ^99mTc-tin colloid was significantly higher in Child-Pugh B & C group than A group(p<0.05), but there was no difference between postnecrotic and non-postnecrotic groups. These will be important results on the dicision for the presence of cirrhosis according to the variable causes.

마이크로파 대역에서 실내 환경의 경로손실인자를 사용한 통계적 모델링

이권익,홍성욱,강부식,김흥수 濟州大學校工科大學産業技術硏究所 1999 尖端技術硏究所論文集 Vol.10 No.1

In this paper, indoor propagation characteristics are analyzed for various environments such as corridors, walls and corners at microwave band. In order to present the statistical model for indoor environments the loss factors of each case are obtained by linear regression analysis method with the function of logarithmic distance between transmitter and receiver. Comparisons of our predicted results to measurements indicate that improvements in accuracy over conventional statistical models are achieved.

濟州 西部地域의 電波 傳播 豫測 모델

이권익,강부식,홍성욱,김흥수 濟州大學校工科大學産業技術硏究所 1996 尖端技術硏究所論文集 Vol.7 No.2

In this paper, we present the formula to find field strength under the terrain configurations of the western area of Cheju. The reflection coefficients are obtained by several experiments and the propagation model which includes the terrain configurations and reflection coefficients are presented. To find the field strength for known terrain configurations. we use this model and reflection coefficients. This prediction model play an important role in planning cell site and service area in western area of Cheju.

전기활성슬러지법에 의한 돈사페수처리에 관한 연구

이성기,송영일,이진욱 조선대학교 환경공해연구소 1999 環境公害硏究 Vol.15 No.2

The swine wastewater treatment were investigated by electro-activated sludge process combined with formative overlap biolayer(FOBL) activated-sludge process and electricity formative overlap biolayer(EFOBL) in sequence. Organic material is reacted between solution and electrode by oxidation-reduction potential. Fe^(3+) or Fe^(2+) ion isolated from both electric poles is used for coagulation and precipitation of suspended solid. The removal amount of COD is 42% as a most effective one at the 32℃ of solution temperature. To raise the temperature until 32℃, Iron electrodes needs 20V and tungsten electrode needs 15V. Swine wastewater has high concentration of organic material, which can be removed by coagulation. BOD, TSS removal efficiency obtained in the range of 39% to 82% by using a polymerized coagulant, containing lOO㎖/ℓ, 32%~80% by using Al_(2)(S0_(4))_(3), containing 0,4%, and 59%~89% using Ca(0H)_(2), containing 4%. BOD is removed up to 38.2% with 3 days of HRT in FOBL and BOD removal rate in activated sludge process using effluent of FOBL is about 66.7% with 4 days of HRT, 85% with 6 days of HRT, 90% with 8 days of HRT. 90~99% of BOD removal efficiency could be accomplished with 1 days of HRT in EFOBL. In the Electro Activated Sludge Process, Each removal rate of BOD, COD, SS, T-N, T-P is 90.5%, 89%, 94.5%, 64.1%, 68.3% with 8 days of HRT respectively. T-N, T-P are removed 66~75.4%, 68.5~77.9% with 10~12 days of HRT.

근로자들의 직종별 직무스트레스

이승욱,이종태,손혜숙,김성준 인제대학교 백병원 2002 仁濟醫學 Vol.23 No.5

Objective : This study was conducted to evaluate the Job stress among workers by tasks. Methods and Material : This is a cross-sectional study consisting of self-administered qestionnaire survey. These study subjects were 983 persons in total; elementary school teachers 282, taxi-drivers 72, container terminal workers 199 and hair dressers 430. Through the questionnaire, socio-demographic characteristics, stress-related behaviors and daily sleeping hours were surveyed, and through the JCQ(Job Content Questionnaire), Job characteristic scores were assessed and through the PWI(Psychological Well being Index), psychosocial distress level was assessed. Results : Psychological job demand and decision latitude by hairdressers were the highest among 4 jobs. So, in the job strain levels, the rate of between active group and high strain group was higher than of other jobs. On taxi-drivers, psychological job demand was high in some degree but decision latitude and social support were low. In case of contain terminal workers, psychological job demand and social support were high in some degree but decision latitude was the lowest among 4. On elementary school teachers, social support was high in some degree. but decision latitude was low and psychological job demand was lowest among 4. Accordingly, in Job strain, the rate of passive group was the highest, but the rate of high strain group was the lowest. On hairdressers, the job strain by each rank was very various; in case of staff, the rate of passive group and high strain group was the highest and in case of designers and directors, the rate of active group and strain group was high(P<0.01). The psychosocial distress of taxi-drivers(PWI; 90.1) and container terminal workers(PWI; 88.3) were very serious. It was thought that the common job characteristics caused works by turns, night workers, irregular break and mealtime, and strain against accidents as job stressors. Only on hairdressers, the difference of PWI levels by each rand was statistically significant; staffs(46.9) and designers(44.9) were higher than directors(34.8)(P<0.01). Comparing the results of PWI between low strain group and high strain group, only about hairdressers, the PWI was high(P=0.0001) and high strain group odds ratio about low strain group was statistically significant. Conclusion : It could be evaluated the job stress among workers by tasks. To lower the job strain levels and to raise the rate of active group in container terminal workers and elementary school teachers, the decision latitude should be guaranteed. On taxi-drivers and hairdressers, social support should be consolidated. Especially to decrease psychosocial distress among workers, an effective and systematic job stress management programs should be needed.

심인성 색전 요인이 없는 뇌경색 환자에서 경식도 심초음파와 Acoustic Quantification을 이용한 대동맥 탄성의 평가

이종민,윤호중,임효영,박지원,김휘열,전희경,문건웅,정욱성,채장성,김재형,최규보,홍순조 대한순환기학회 2000 Korean Circulation Journal Vol.30 No.8

延日, 鶴田洞地域 玄武岩類의 岩石學 및 그 風化特性

李倫鐘,金城正,金重旭 慶北大學校 1989 論文集 Vol.48 No.-

For the petrology and weathering characteristics of basalts in the vicinity of Yoˇnil, main joint patterns randomly developed in the basalts, microscopic observation, and chemical analysis of the fresh and weathered rocks were studied and got the following conclusions. 1. The main joint patterns randomly developed in the basalts are divided into 4 patterns, i.e. EW, 80°∼90°N or S; N50°∼60°W, 85°∼90°SW or NE; N30°∼40°E, 70°∼80°NW and N35°∼55°E, 60°∼70°SE. These patterns are seemed to be some direction of columnar joints, which are remarkably developed in the basalts. They generally show vertical dips in the core but they are slightly oblique in the marginal part of basalts. 2. The basalts in this area belong to alkali olivine basalt and are porphyritic texture, of which about 35∼40 percent is phenocryst. 3. The relationship between the released quantities of constituents through weathering process is as follows: (Na_2O, K_2O)>(MgO, FeO+Fe_2O_3); MgO>FeO+Fe_2O_3; Na_2O.K_2O 4. Released quantity of 'Al_2O_3' is neoformed into chemical compoud of 'Al_2O_3' in the immediate vicinity of dissolving area, 'H_2O' content is increased by dint of hydration, 'SiO_2' is released by small amounts, and the amount of 'CaO' increases subsequently after decreasing. 5. Sequence of released constituent cations in the early stage of weathering can be summarized as follows; Ca, Na, Si, K, Mg, Fe, Al. And those in the last stage of weathering are Na, Si, Mg, K, Fe, Ca, Al. In process of weathering, decreasing rate of 'Co' is higher than that of 'Cr'.

급성 심근경색후 생존심근 진단에서 Dobutamine 심초음파도와 Thallium 심근스캔의 정확성 비교

이근,강덕현,송재관,이철환,최기준,홍명기,김재중,박성욱,박종훈,박승정 대한순환기학회 1998 Korean Circulation Journal Vol.28 No.2