인천 송도지역 척전 갯벌 대형저서동물의 군집 생태학 2. 우점종의 시ㆍ공간적인 분포양상

서인수,홍재상 한국해양학회 2004 바다 Vol.9 No.3

인천 동춘동 척전 갯벌에 서식하는 대형 저서동물의 중요 우점종에 대한 시ㆍ공간적인 분포 패턴을 알아보기 위하여 1990년 9월부터 1992년 7월까지 2개년 동안 격월별로 현장조사를 실시하였다. 조사 기간 중, 총 111종, 25,491 개체가 채집되었고, Le Bris Index에 근거한 상위 15위의 우점종은 19,072개체의 밀도를 나타내 74.8%를 점유하였다. 백금갯지렁이과(Nephtyidae)의 다모류 3종과 칠게아과(Macrophthalminae)의 갑각류 2종은 동일한 속(genus)이 면서 조위와 퇴적상에 따라 뚜렷이 구분되는 서식처를 갖는 것으로 나타났다. 척전 갯벌의 중요 우점종은 다모류의 Heteromastus filiformis, 이매패류의 동죽(Mactra veneriformis), 맛조개(Solen strictus), 극피동물 해삼류의 가시닻해 삼(protankyra bidentata), 갑각류의 칠게(Macrophthalmus japonicus)등이었다. 5종의 중요 우점종에 대하여 공간에 따른 개체밀도를 비교한 결과, H. filiformis와 동죽은 통계적으로 유의한 차이가 없었으나(P>0.05), 맛조개, 칠게와 가시닻해삼은 유의한 차이가 있었다(p<0.001). 이것은 중요 우점종이 조위와 퇴적상에 따라 출현 개체밀도에서 공간적인 차이가 있음을 의미한다. H. flzyomis와 동죽은 조위와 퇴적상에 무관하게 갯벌의 전역에서 높은 밀도로 출현하였다. 그러나, 칠게는 펄이 많은 상부에서 밀도가 높았고, 맛조개, 가시닻해삼은 갯벌의 중ㆍ하부인 모래펄에서 우세한 밀도로 출현하여 이를 반영하고 있다. Spatio-temporal distribution patterns of the major dominant species were assessed from bimonthly monitoring of macrotidal flat in Cheokjeon, Incheon, Korea between September 1990 and July 1992. Overall, macrofauna comprised a total of 111 species, 25,491 inds.136 ㎡. The result of Le Bris index, dominance ranking of the lead-ing species showed that the top 15 species accounting for 74.8% (19,072 inds.) of total density. In Cheokjeon tidal flat, some species were especially habitat-restricted such as genus Nephtys (Annelids; Polychaetes) and Mac-rophthalmus (Crustaceans; Decapods). Based on the density data, the five dominant species were the polychaetes Het-eromastus filiformis, the bivalves Mactra veneriformis and Solen strictus, the brachyurans Macrophthalmus japonicus, the holothuriodeans Protankyra bidentata. The results of one-way ANOVA, mean value of H. filiformis and M. ven-eriformis did not show significant changes with tidal elevation and sediment composition (p>0.05). But, other species (S. strictus, M. japonicus and P. bidentata) showed significant variations (p<0.001). In conclusion, these indicate significant spatial fluctuation with tidal elevation and sediment characteristics in some species.

綠膿菌의 Pyocine 型別 및 그 再現性

金基豪,韓王洙,徐仁銖 한양대학교 의과대학 1982 한양의대 학술지 Vol.2 No.1

A total of two hundres and eighty-nine strains isolated during 1978 to 1980 in Seoul area were typed according to their ability to produce pyocines by the method of Gillies and Govan using ox blood trypticase soy agar. The strains of Pseudomonas were isolated from pus, sputum, urine, feces, blood, nasal and throat discharges, wound, hospital environment and unknown origin. The typing was repeated three times at an interval of about one month and serogically typing according to Homma et al. using same cultures were carried out. Three and two out of three results of pyocine typing came to a concurrence: 49.1%, and 45.3% respectively in the original table and 5.5% non-reproducible (NR) strains. Two out of three results came to a concurrence: 98 strains of Type 1, 44 strains of Type 3. 30 strains of Type 10, 25 strains of non-producer strains (NT), 15 strains of Type 6, 6strains each of Type 5 and 35,5 strains of Type 22, 3 strains each of Type 2 and 23, 2 strains each of Type 18, 27, 29, 30, 31, and 33, 1 strain each of Type 11 and 26 in the original table and 24 UC strains. Eighteen pyocine types were distributed. There was a difference in distribution of type by the year of isolation and specimen source and pyocine typing was reliable method to monitor the patterns of infections due to Pseudomonas aeruginosa. The correlation between pyocine type and serotype were found namely in 1 and B, 1 and F, and non-producer (nt) and I. On the other hand. the method of pyocine and serotyping were useful for subtyping one another.

복사에 관여하는 유한 원통형 매질에서의 복사열 전달

서인수,손종관,임승욱,이준식 대한기계학회 1988 대한기계학회논문집 Vol.12 No.6

본 연구에서는 흡수, 방사 및 비등방성 산란을 하는 축대칭 유한원통형매질에 서의 형식해로부터 Gaussian Quadrature를 이용하여 수치적으로 엄밀해를 구하고 P-1 과 P-3근사해법을 통하여 얻어진 해와 비교하여 P-1과 P-3근사해법의 타당성을 검토하 였다.또한 매질의 광학두께, 산란알베도, 벽면방사율, 형상계수 등을 주요 파라미 터로 하여 이들의 영향에 대하여 고찰하였다. An analysis of radiative heat transfer has been conducted on axisymmetric finite cylindrical media. It is assumed that the temperature in the media is uniformly distributed and the boundaries are diffusely emitting and reflecting at a constant temperature. The scattering phase function is represented by the delta-Eddington approximation to account for highly forward scattering by particulates just as in the combustion system. Exact numerical solutions are obtained by Gaussian quadrature method and compared with P-1 and P-3 approximation solutions to verify their engineering application limit. The effects of optical thickness, scattering albedo, wall emissivity and aspect ratio are investigated. The results show that P-3 approximation is found to be in good agreement with the exact solution.

우리나라 소아에서의 β- Lactamase 산생 Escherichia의 장관내 존재

박현수,김경희,조양자,서인수 대한감염학회 1989 감염 Vol.21 No.2

In order to evaluate the possibility that facal E. coli might serve as a reservoir of β-lactamases for Haemophilus influenzae, Neisseria gonorrhoeae, or other members of the Family Enterbacteriaceae, 135 fecal E. coli isolates from Korean children uder two years of age were tested for resistance to ampicillin (??) and for β-lactamases activity. ?? was found in 115(85%) strains of E. coli tested. Of the 115 ?? E. coli, 87(76%) were β-lactamases producers. High rates of ?? and β-lactamases activity were found uniformly in various pathogenic types of E. coli. Our observations raise questions concerning the importance of fecal E. coli in the prevalance of β-lactamase producing bacteria in the community. Fecal E. coli of Korean children may be important in the epidemiology of β-lactamases producing pathogens in humans.

大腸菌의 藥劑耐性 傳達에 關한 硏究

朴聖洙,趙陽子,徐仁銖 한양대학교 의과대학 1984 한양의대 학술지 Vol.4 No.1

Seven hundred and seventy one Escherichia coli strains were isolated in Seoul area during a period from 1982 to 1983. These strains were originated from fecal specimens of 257 infantile diarrhea who had more than 3 times diarrhea per day. This study was made an attempt to assess the present state of serotypes, enterotoxin production, drug resistance and transferability of both conjugated R plasmid and thermosensitive R plasmid. Among 771 strains of Escherichia coli, 97.1% were unserotyped and 2.8% were serotyped, in which the commonest type was 0126:K71. The only 1 strain of unserotyped Escherichia coli produced both heat-stable enterotoxin and heat-labile enterotoxin. In unserotyped Escherichia coli, the incidence of strains resistant to AP, TC, CM, KM, SM and CER were 42.6%, 37.1%, 29.4%, 23.6%, 16.4% and 6.8% in decreasing order of frequency and in serotyped Escherichia coli, the incidence of strains resistant to AP, TC, KM, SM and CER were 90.9%, 86.4%, 81.8%, 77.3%, 31.8% and 9.1% respectively. Among unserotyped and serotyped Escherichia coli, 20.6% were found to be resistant to two or more drugs tested and the most common pattern was KM. AP. CM. TC (27%). In the detection of R plasmid in Escherichia coli, the most common R plasmid was R(AP) 68.3% and in serotyped Escherichia coli R(KM) 72.2%, in unserotyped Escherichia coli R(AP) 71.3%, respectively. Twenty two kinds of R plasmids were demonstrated in Escherichia coli, among which the most common transmissible R plasmid was R(AP). In the detection of thermosensitive R plasmid transferring ampicillin resistance from Escherichia coli strains in serotyped and unserotyped, all strains transferred only at 25℃. The frequency of R plasmid in serotyped Escherichia coli strains was 100%, in which incidence of strains of resistance transferred was 90% partially and 10% completely. Among unserotyped Escherichia coli, non-enterotoxigenic Escherichia coli transferring partial resistance was 47.2% and one tansferring complete resistance was 22% and enterotoxigenic Escherichia coli transferred complete resistance.

녹농균의 단백분해효소산생능이 마우스 폐장에 미치는 영향

김태근,조양자,서인수 한양대학교 의과대학 1985 한양의대 학술지 Vol.5 No.2

Proteases producing Pseudomonas aeruginosa has often been implicated in human respiratory infections. This study was to evaluate pahhogenic effects on mouse lung of 4 strains (A10-341, A10-403, NC-5, and IFO 3455) of Pseudomonas aeruginosa with known proteases production and mouse lethality in experimental model. It was found that histopathologic effects of pseudomonal proteases on mouse lung include increased hemorrhage, emphysema, infiltration of mononuclear cells, noninflammatory edema of alveolar septa, and alveolar exudation. Rates of destruction of alveolar architecture and necrosis of alveolar septal cells were correlated with the degrees of mouse lethality of each strain and the cause of these effects seemed to be related with the endotoxic activities Pseudomonas aeruginosa in vivo.

병영에 날아든 그녀의 일기

서인수 샘터사 2003 월간 샘터 Vol.34 No.3

한국 성인의 Campylobacter pylori항체에 관한 연구

김기호,김정목,조양자,서인수 한양대학교 의과대학 1988 한양의대 학술지 Vol.8 No.2

Campylobacter pylori (C. pylori) that had recently been reported have becom an interesting objects in the discussion of the etiology of gastritis and peptic ulcer. The role of the C. pylori was evaluated in groups of adults with pathologic mucosa and with normal mucosa, who visited to Hanyang University Hospital in Seoul, Korea. By means of culture or Warthin-Starry silver stain, C. pylori was detected in biopsy materials of 53 (68.8%) out of 77 patients and 1 (7.7%) out of 13 concurrent control subjects (p<0.05). According to the histopathologic gradings, the following numbers were to be positive: active chronic gastritis 41 (75.9%); chronic gastritis 7 (13.0%); chronic ulcer 5 (9.3%); and histologically normal findings 1 (1.9%). A serological screening that used for a dot immunoassay resulted in the following reports: positive Ig G immunoblot were found in 51 (94.4%) of the patients with C. pylori and in 11 (20.4%) of the patients without C. pylori (p<0.01); and positive Ig A immunoblot were found in 11 (20.4%) of the patients with C. pylori and in zero (0.0%) of the patients without C. pylori (p<0.05). A serologic test used for a Western blot immunoassay resulted in seven strong protein bands (108 KD, 98 KD, 78 KD, 72 KD, 68 KD, and 62 KD). These findings strongly implicate C. pylori as one of the cause of active chronic gastritis and chronic ulcer. And this study supports the concept that C. pylori may be an important cause of gastritis or peptic ulcer in Korean adults.

문화재보관상자 소재 개발

서인수,서영범 한국펄프·종이공학회 2008 한국펄프·종이공학회 학술발표논문집 Vol.- No.-

한국어린이 설사증에 있어 Clostridium difficile의 분포 및 그의 병원적 의의

김경희,조양자,서인수 대한감염학회 1986 감염 Vol.18 No.1

Although recent reports from western countries suggest that Clostridium difficile has been implicated as an important agent in diarrheal disease of children, the frequency with which C. difficile occurs in Korean children with diarrhea has not been established. We, therefore, conducted a 12 month evaluation of C. difficile in 214 diarrheal children less than 2 years old and 52 age-matched controls in Korea. Toxigenic C. difficile plus free fecal C. difficile toxin or free fecal C. difficile toxin only was detected in stools of 33(15.4%) children hospitalized due to diarrhea and in stools of 2(3.8%) of 52 asymptomatic controls(p<0.05). Colonization of infants with C. difficile seems to occur during weaning probably from other carriers, e.g., food or their surroundings. The babies in turn may be an exogenous source of C. difficile for adults who are receiving antibiotics. These results suggest the importance of searching for C. difficile toxin in children who develop diarrhea in Korea.