合成洗劑 生分解 및 環境毒性에 관한 硏究

朱興珪,崔圭行,吳東植 조선대학교 약학연구소 1990 藥學硏究誌 Vol.12 No.1

Alkyl benzene sulfonate, Persists for long Periods in stream because of its resistance to biologic degradation. Its biodegradation is varied in the environment. This investigation was undertaken in oder to know the biodegradation of synthetic detergents which are comprising soft and hard form from may to september 1990. The biodegradation by settling, aeration and activated sludge were determined. The reduction rates of ABS were 22.92%, 10.05% by settlings for 5 days at 25℃ and 52.20%, 82.74% by aeration and average rate 90.98% of LAS by the activated sludge processing. When activated sludge Processing is carried out in the 30% of LAS, the significant downfall of the biodegradation rate to 87.59% is caused by the withering up of bacteria activity as the poison of LAS directly affects microorganism. In dealing with the TLm of LAS systemed synthetic detergent during 24 hours has revealed 40 ppm and the TLm during 48 hours has revealed 24 ppm.

주암호 상류지류의 수질에 관한 연구 : 사평천을 중심으로 On The Sapyung River

주흥규,홍승호,백종오 조선대학교 약학연구소 1998 藥學硏究誌 Vol.19 No.1

The water quality of Sapyung stream, one of four branches of Lake Chuam, was investigated in August and October. 1995. The results are as follows : 1. The pH of all the investigated sites was ranged from 5.5 to 7.6 which is similar to ordinary streams in Korea, which is an evidence that there it was no source to change the pH significantly 2 In the first investigation DO was ranged from 5.5 to 7.4 ppm, which was slightly lower ppm than other streams, because it was higher atmospheric temperature(35℃) and water temperature(30.5℃) It was ranged from 7.3 to 7.4 ppm in the second investigation, indicating that site is relatively stable and clear area. 3. BOD during all the investigation was ranged from 1.0 to 2.7ppm, indication that it is good water quality. 4. NH₃-N, indicator of water pollution was ranged from 0.03 to 0.07ppm, It is believed that the source was not the contamination of the water 5. NO₂-N and NO₃-N were slightly higher in the first investigation than the second investigation. This is a result of better nitrification in the first investigation because it was longer daylight time and higher water temperature. 6. Chlorine ion concentraton, total hardness, and PO₄-P were detected homogeneously in all investigated area. It is believed that they are due to characteristics of the ground and are not the evidence of point source contamination when compared to other streams. 7. The level of contamination due to general bacteria and E. coli was much lower than other streams, however, in the detection of 7.9x10² E. coli at sites 5, water quality of main stream of Lake chuam needs to be monitored closely.

Preventive Glass lonomer Restoration의 치험증례

이종갑,이주헌,손흥규,최병재 大韓小兒齒科學會 1993 大韓小兒齒科學會誌 Vol.20 No.2

The “preventive glass ionomer restoration ”was first described by Garcia-Godoy in 1986, which was a variation of the preventive resin restoration. The preventive glass ionomer restoration has disadvantages of low wear resistance, technique sensitive, and no long term clinical evaluation. However, it has advantages as mininal setting shrinkage, fluoride release, chemical bonding to dentin and enamel, coefficient of thermal expansion sinilar to that of tooth structure, and low pulpal toxicity. Therefore, applying this technique on low stress bearing area of initial carious lesion can be a good restorative method.

소화성 궤양 환자에 대한 염산 베넥세이트(울굿^(�)) 임상 효과

정현용,육은주,이헌영,노홍구,김영건 최신의학사 1993 最新醫學 Vol.36 No.8

일개 대학병원에서 일년간 분리된 반코마이신 내성 장구균의 임상 분자역학적 연구

송진영,김창억,김성욱,우흥정,김미란,이규만,이란,장미화,정희진,김우주 대한화학요법학회 2001 대한화학요법학회지 Vol.19 No.4

목적 : 한강성심병원에서는 2000년 3월 반코마이신내성 장구균이 처음 분리되어, 원내전파를 막기 위한 노력을 하였으나, 분리가 지속되었다. 따라서 이에 대한 좀더 자세하고 객관적인 자료를 얻기 위해 본원에서 분리된 반코마이신내성 장구균에 대한 임상분자 역학적 연구를 시행하게 되었다. 방법 : 2000년 3월부터 2001년 2월까지 한림대학교 한강성심병원에서 분리된 장구균을 대상으로 디스크 확산법, 최소발육억제 농도등의 측정을 통해 반코마이신 내성여부를 확인하였으며, 반코마이신내성 장구균을 대상으로 PFGE를 시행하여 형별 분석을 하였다. 결과 : 분리된 균주는 총 32균주로 모두 E. faecium이었다. 항생제 내성 검사 결과 모두 Van A형이었다. PFGE 결과 1a형이 8검체, 1b형이 5검체, 2a형이 4검체, 2b형이 4검체, 3a형이 2검체, 3b형이 5검체였고, 그 외 4, 5, 6형이 각각 1검체씩이었다. 총 32균주 중 56%(18/32)의 균주가 같은 시기, 같은 병실에서 동일한 PFGE 형을 보이면서 분리되었다. 결론 : 반코마이신내성 장구균의 PFGE 분석 결과 여러 종류의 반코마이신내성 장구균이 유행하였음을 알 수 있다. 그러나 같은 기간, 같은 병실에서 분리된 균주의 PFGE 형이 같은 것이 상당수 있었다. 이는 반코마이신내성 장구균의 원내 전파가 있었음을 의미한다. 따라서 반코마이신내성 장구균의 전파의 발생 및 전파 방지를 위해서는 보다 효과적인 감염관리 활동이 필요할 것으로 생각된다. Background: Vancomycin-resistant enterococci(VRE) have been a rising problem worldwide. In March 2000, VRE was first isolated from a patient in Hangang Sacred Heart hospital. Although efforts to prevent transmission of VRE were performed, isolations continued. So molecular epidemiological study of VRE was done. Method : The minimal inhibitory concentration(MIC) to vancomycin and teicoplanin, and pulsed field gel electrophoresis(PFGE) pattern of VRE isolated from March 2000 to February 2001 were evaluated. Results : 32 VRE were isolated. All of the VRE were Enterococcus faecium and showed Van A resistance phenotype. We found out that a significant number of VRE isolated during same period and in same room, were same PFGE patterns. (18 cases/ 32 isolates= 56%) Conclusion: This study demonstrated the spread of VRE of same PFGE patterns. It suggests the nosocomial spreads of VRE.

榮山湖 上流支術의 水質에 관한 硏究 : 砥石江을 中心으로 on the Ji-Suk river

朱興珪,吳東植 조선대학교 약학연구소 1991 藥學硏究誌 Vol.13 No.1

Physico-chemical and microbiological research of water quality of Ji-Suk river, one of the 3 tributary streams of the upper stream Lake Youngsan, was performed twice in August 1990, and September 1990, and results are obtained this research as the following: The pH of the whole research area is 6.3 to 7.5, no much difference from those of common streams in Korea, which means that there is no special factors to change the pH around Ji-Suk river. The DO is 5.8ppm to 8.5ppm and shows a little difference from area to area of observation. It is considered that the water is contaminated by waste water from the 2 large amusement parks from Site 1 to Site 5. The BOD is 3.1ppm to 3.5ppm except Site 1, no much difference from area to area of observation, which makes comparayively stable quality of river water. It is because Site 1 is where the 3 tributary streams of the upper stream from Lake Youngsan joins together, and it contains a lot of organic substances to increase BOD higher than other sites of observation. Nut-ritive salts are observed to be comparatively low : 0.02ppm to 0.08ppm of NH_3-N, 0.03ppm to 0.08 ppm of NO_2-N, 2.23 ppm to 4.00ppm of NO_3-N, and 0.022ppm to 0.081ppm of PO_4-P, over all research area, But in Site 1, 0.08ppm of NH_3-N, 0.08 ppm of NO_3-N, and 3.6 ppm of NO_3-N are observed. It says that various nitrogen compounds flow into the upper stream of the river to to remain as they were or to be nitrified at this site, the most upper stream of Ji-Suk river. Each of Cl-ion and hardness : 37.02 ppm to 39.90 ppm, 37.02 ppm to 45.10 ppm, respectively : is analyzed rather homogenously all over the research area. Compared to other rivers, such substances are found from the water of this river not due to the point source contamination, but mainly due to the quality of soil. Normal bacteria and E. Coli are observed to be comparatively lower in this research area than other river, still from 6.8×10^2 to 1.8×10^4 of E. Coli is analyzed at each research site. It proves, however, that this river is contaminated generally by fecal excrete from the 3 large amusement parks along Ji-Suk riverside, and some special measures are demanded to manage and protect these amusement parks.

적절한 임프란트 식립을 위한 이공과 이관의 해부학적 고려사항

Kyu-Tag Kim,Jae-Ho Yang,Sang-Bong Kim,Jong-Tae Park,Koung-Youn Lee,Hyun Sook Bae,JOO-CHEOL PARK,Heung-Joong Kim 대한구강해부학회 2007 대한구강해부학회지 Vol.31 No.1

The menta1 foramen is located between the first and second premolar regions. The direction of mental cana1 is cornmonly described as being outward, backward, upward from its origin at the mandibular canal‘ The mental nerve is a terrninal branch of the inferior alveolar nerve that passes through the menta1 foramen, supplying sensory innervation to the lower lip, bucca1 vestibule, and gingiva of the mandibular premolar regions. The purpose of this study was to investigate the position of the mentaJ foramen and the length and the direction of the mentaJ canal in Korean. 1n this study, 41 aduJt dry mandibles were investigated independentJy by four observers. The position of the mental foramen and the distance from the mandibular inferior border were measured using conventionaJ nder. The Jength of the menta1 canal was measured directJy using periodontaJ probe. The horizontal and vertical angJes of the mental cana1 were measured by protractor. The student’s T - test was carried out to assess right and Jeft side difference. The results were as foJJows: 1. The majority of the mental foramen were Jocated below the second premolar' (66.1%), and then between the first and second premoJars(27.4%)‘ 2. The distance between the mental foramen and the inferior border of mandible was 14 .4l:!:1. 47mm(mean 土SD) in right side and 14.36:!:l.42mm in left side(P>O.05) 3. The Jength of the mental canal was 7.8l:!:1.12mm in right side and 7.95:t1.ODmm in Jeft side(P>O.05). 4. The horizonta1 angle of the mentaJ canal was 24.26土5.470 in right side and 24.8l:!:4.7870 in Jeft side(P>O‘ 05) 5‘ The vertical angle of the mental canal was 27.34土4.550 in right side and 28.79:t4.11 0 in left side(P>O.051. 6. The length of anterior Joop of the mental canal was 7.1l:!:1.l5mm in right side and 7.07:tO.99mm in Jeft side(P>O.05) These results suggest that dentist have to consider the mental foramen and menta1 canal when attempting to achieve regiona1 anesthesia, periodontal surgery, and endosseous implants

Regional Differences in Intestinal Contractile Responses to Radial Stretch in the Human Lower Gastrointestinal Tract

Heung-Kwon Oh,Tae Sik Sung,Seung-Bum Ryoo,Kyu Joo Park 대한소화기 기능성질환∙운동학회 2023 Journal of Neurogastroenterology and Motility (JNM Vol.29 No.1

Background/AimsRadial stretch evokes an increase or decrease in contractions in the lower gastrointestinal tract via mechanosensory enteric neurons that project into the muscle layers. We aim to elucidate the differences in stretch reflexes according to their location in the human colon. MethodsWe used healthy intestinal smooth muscle tissue excised during elective colon cancer surgery. Conventional intracellular recordings from colonic muscle cells and tension recordings of colonic segments were performed. Radial stretch was evoked through balloon catheter inflation. Changes in the membrane potential and frequency, amplitude, and area under the curve of muscle contractions were recorded before and after the radial stretch at proximal and distal segment sites. ResultsIn intracellular circular muscle recordings, hyperpolarization was noted at the distal site of sigmoid colonic segments after radial stretch, in contrast to depolarization at all other sites. In tension recordings at proximal ascending or sigmoid colonic segment sites, contractile activation was observed with statistically significant increases in the frequency, amplitude, and area under the curve after radial stretch. Distal sites of ascending and sigmoid colonic segments showed increase and decrease in contraction, respectively. ConclusionRadial stretch in the human colon (in vitro) evokes excitatory activity at both proximal and distal sites of the ascending colon and at the proximal site of the sigmoid colon, whereas it elicits inhibitory activity at the distal site of the sigmoid colon.

Case Report : Subcutaneous Dermatofibroma

( Kyu Dong Jung ),( Dong Youn Lee ),( Joo Heung Lee ),( Jun Mo Yang ),( Eil Soo Lee ) 대한피부과학회 2011 Annals of Dermatology Vol.23 No.2

Dermatofibroma (DF) is usually confined to the dermis and the overlying epidermis is usually hyperplastic. Although DF with deep subcutaneous extension is commonly encountered, purely subcutaneous DF is uncommon. In this review, we describe a case of a 41-year-old male patient who presented with a painless, subcutaneous, hard papule on the left thigh. After the skin had been incised the lesion was totally removed, and histopathology revealed a subcutaneous dermatofibroma. (Ann Dermatol 23(2) 254∼257, 2011)

대한민국 두통환자의 카이로프랙틱 치료의 인식과 필요성에 대한 연구

Heung Soo Kim,Joo Hyun Ham,Chan Kyu Park 한서대학교 보완대체의학연구소 2015 Research Journal of Complementary and Alternative Vol.- No.6

The purpose of this thesis is to measure effectiveness of chiropractic care in the treatment of headaches in Korea as well as to explore the need and perception of chiropractic care. For eight months from January 19-September 19, 2015 I surveyed 207 people in Daejon, Chungnam province and Cheong-ju, Chung-buk province. The highest respondents were over 50 years of age with 30.90% of surveys completed by this age group. The female responses were higher than male at 84.54%. The occupation of most respondents was housewife at 36.23%. Survey results revealed that when asked how long respondents had headaches for, 36.70% stated a week and when asked how long the headaches lasted, 52.17% stated for 30 minutes. Respondents stated that the type of headache they experienced most was a cervicalgenic headache as demosntrated by 61.83% respondents. When asked how they treat their headaches and whether they had treatment before, 58.54% of the respondents stated they had received treatment for headaches. When it was specified by asking what kind of clinic they had visited to address their headaches, 35.53% stated they had seen a medical doctor. 46.73% of the respondents also stated that they mostly made their treatment decision based on distance, choosing to go to close by. For respondents who did not receive treatment, when asked why, the top reason that received a 40.69% response rate was they had no time. 45.89% of respondents stated that there were neither satisfied nor dissatisfied after treatment of their headache. When asked about chiropractic care, 42.099% reported they were satisfied after receiving chiropractic care. When asked if they knew about chiropractic care as a treatment option to address headaches 92. 75% of the respondents stated no, they had not eard about it. When asked about their understanding of the difference between chiropractic versus medical care, 59.42% stated chiropractic care had no medication and no surgery. Respondents were asked how easy is it to find a chiropractic center and 43.47% stated it was very difficult. When asked if they would recommend chiropractic care for treatment of headaches to others, 43.93% stated that they would.