Genetic Analysis of Apoplastic Proteins in Barley Crosses

Chun,Jong-Un,Choi,Kap-Seong,Griffith,Marilyn 한국자원식물학회 2004 Plant Resources Vol.7 No.2

Antifreeze proteins (AFPs) accumulate in the leaves of barley during cold acclimation, where they may inhibit ice recrystallization and produce freezing resistance of the plant. Four parental diallel crosses of the barley varieties were used to determine the heritability of AFPs and the relationship between the accumulation level of AFPs and freezing resistance. The concentration of apoplastic proteins in the cold-acclimated leaves was increased in the mean by four-fold over as compared with that of nonacclimated. The diallel cross analyses revealed that the gene of Sacheon 6 was dominant and those of Reno and Dongbori 1 were recessive. The AFPs had high narrow-sense heritabilities. The general combining ability effects of Reno and Dongbori 1 were much higher than the other parents. The bands of 32-kD for GLP, 35-& 28-kD for CLP and 25-, 22- & 16-kD for TLP were observed in the apoplastic extracts from cold-acclimated plants, but there were no clear differences between the parents and Fl hybrids. The concentrations of AFPs were significantly correlated with the degree of freezing resistance, indicating that the concentration of AFPs in the plant is the very important factor for freezing resistance.

저 발열량 페유 소각기 개발에 관한 실험적 연구

전영남,백원석,송형운,유경석,김성천 조선대학교 환경공해연구소 2004 環境公害硏究 Vol.18 No.-

The advanced waste oil incinerator is suggested that has heat recirculation region in the combustor to burn out the waste oil completely in high temperature zone and heat recuperator in the left side of combustion cavity which plays a role of the flame stabilization of main burner flame by heat recovery of exhaust gas to incinerate waste oil contained water. In order to investigate a simultaneously incineration efficiency of the vessel waste oil contained the hazardous waste which occurs from the vessel and the sea outflow waste oil experiments have been carried out using the emulsion fuel mixed the water and bunker fuel oil C and the blend mixed the light oil and the waste surrogate material (acetonitrile:CH_(3)CN). The results of experiments showed that the waste oil incinerator developed in this study was excellent for the incineration efficiency of waste oil at an air ratio of 1.46 and DRE (destruction and removal efficiencies) of CH_(3)CN was 99.9996% ("5 nines"). And optimum operating conditions for the secondary air flow rate of internal mix burner, preheating temperature and injection point of shipboard waste oil contained acetonitrile were suggested.

부인암 환자에서 발견되는 대장 선종의 특징

전정현,정성애,김성은,이종수,남승현,신정은,문혜성,김승철,유권 梨花女子大學校 醫科大學 醫科學硏究所 2003 EMJ (Ewha medical journal) Vol.26 No.1

연구목적 : 2형 Lynch 증후군에 대한 관심이 높아지면서 부인과 종양 환자에게 대장암과 대상 선종의 검사 필요성이 언급되어지고 있다. 본 연구에서는 본원의 부인과 종양 환자에서 병기 결정을 위해 시행되어지는 S상 결장경 검사에서 발견되는 대상 선종의 특징을 알아보고자 하였다. 방법 : 1993년 9월부터 2001년 3월까지 본원에서 부인과 종양을 진단받고 대장 증상 없이 병기 결정을 위해 S상 결장경검사를 시행한 187명을 대상으로 하였고(자궁경부암 139명, 난소암 35명, 자궁 내막암 13명) 정상대조군으로는 대장 증상 없이 건강 검진 목적으로 대장경 검사를 시행한 58명을 대상으로 하였다. 결과 : 부인과 종양 환자 187명 중 21명에서 대장 선종이 발견되었고(11.2%) 다발성 선종이 있어 모두 26예의 선종이 관찰되었다. 정상 대조군 58명에서는 3명에서 선종이 발견되었고(5.2%) 다발성 선종은 없었다. 부인과 종양 중 자궁 내막암 환자군에서 선종의 빈도는 38.5%로 정상 대조군에 비해 통계학적으로 유의하게 많았다. 진행성 선종의 빈도도 자궁 경부암 환자 12.5%, 난소암 환자 25.5%, 정상 대조군 33.3%에 비해 자궁 내막암 환자 83.5%로 유의하게 많았다. 부인과 종양의 선종 위치는 직장이 23.1%, S상결장이 76.9%였다. 결론 : 부인과 종양 환자의 대장 선종 빈도는 정상 대조군에 비해 많은 경향을 보였으나 통계학적 의의는 없었다. 그러나 자궁 내막암 환자군에서는 다른 부인과 종양 환자나 정상 대조군에 비해 유의하게 많은 선종과 진행성 선종의 빈도를 부였다. 따라서 부인과 종양 환자에게 대장경 검사를 통한 대장 선종 유무 검사가 필요하리라 생각된다. Objectives : In Lynch syndrome Ⅱ, colon cancer was associated with endometrial and ovarian cancer. The aim of this study was an evaluation for the clinicopathologic characteristics of rectosigmoid adenomas on preoperative sigmoidoscopy in gynecologic cancer patients. Methods : A total 187 gynecologic cancer patients(139 cervical, 35 ovarian, 13 endometrial cancer) and 58 normal controls were reviewed sigmoidscopic finding and pathologic reports retrospectively from September 1993 to March 2001. Results : The mean age of gynecologic cancer patients was 54(38-82) year-old and normal controls was 50(20-68) year-old. Total 26 adenomas were in 21 patients(11.2%) and 3 adenomas were in 3 normal controls(5.2%). The incidence of adenomas was 9.4% in cervical cancer, 8.6% in ovarian cancer and 38.5% in endometrial cancer. Multiple adenomas were in 5 gynecologic cancer patients and 0 normal controls. The incidence of advanced adenoma was 12.5% in cervical cancer, 25.5% in ovarian cancer, 83.5% in endometrial cancer and 33.3% in normal controls. The location of adenoma was 23.1% in rectum and 76.9% in sigmoid colon. Conclusion : The incidence of adenomas and multiple adenomas were higher in gynecologic cancer patients than normal controls but not significantly. The incidence of advanced adenoma and adenomas were significantly higher in endometrial cancer than normal controls. Colonoscopic evaluation of whole colon will be recommanded in gynecologic cancer than sigmoidoscopy.

광주·전남 지역에서 발생한 스포로트리쿰증 103예에 대한 임상적 고찰(1967-1996)

전인기,김훈희,김성진,이승철,원영호 대한의진균학회 1997 대한의진균학회지 Vol.2 No.2

Background : Sporotrichosis is most common deep cutaneous fungal disease in Korea. It is markedly variable in incidence, distribution, and colinical pattern. The epidemiology have been well known to change over years, and to be influenced by environmental condition and geographic location. Sporotrichosis in Kwangju and Chonnam area is more prevalent compared to other areas in Korea. Objective : Our purpose was to describe the prevalence, epidemiological and clinical features, regional distribution and the change of the incidence according to the climate in different regions. Method : the observation of 103 sporotrichosis patients confirmed by clinical, histopathological and mycological studies had been made in the Department of Dermatology at Chonnam National university Hospital for thirty years from 1967 to 1996. Results and Conclusion : The sporotrichosis patient was 0.09% of 108, 680 outpatients, prevalent at the age of thirties and forties(20%), and 3.2:1 in the ration between male and female. The 58% of total cases visited us within 3 months after the beginning of skin lesion. Almost all initial lesions appeared on the exposed areas, especially upper extremities(68%). The 74% of the total cases was lymphocutaneous type, and the rest was fixed cutaneous type. Most popular occupation of patients was farmer(60%). The 69% of patients visited in spring and winter, especially in february(17%). The incidence of sporotrichosis per average 100,000 population in districts of Kwangju and Chonnam area revealed a difference with the amount of rainfall in winter; average 1.8 person in an area above 125㎜,0.8 person in an area between 100㎜ and 125㎜, and 0.2 person in an area below 100㎜ These rsults suggest that the incidence and clinical features of sporotrichosis are influenced by occupations, leisure and occupational activities, living conditions, and the climate.

Water jet 플라즈마를 이용한 프로판 개질에 따른 수소 생산 연구

전영남,김성천,유경석 조선대학교 환경공해연구소 2006 環境公害硏究 Vol.19 No.1

The purpose of this paper is to development water jet plasma reactor and investigate the optimal condition of the SynGas production by reforming of hydrocarbon fuel. Fuel was used propane and plasma was generated by arc discharge on water jet surface. Discharge slipping over the water surface has a number of advantages such as a source of short-wave, UV radiation and it can be used for biological and chemical purification of water. The effects of power, water jet flow rate. electrode gap as well as treatment time were studied. When the variations of power (0.18~0.74 ㎾), water jet flow rate (38.4~65.6 ㎖/min), electrode gap (5~15 mm) and treatment time (2~20 min) were 0.4 ㎾, 53.9 ㎖/min, 10 mm and 20 min respectively, under the condition mentioned above result of maximum H_(2) concentration was 61.6 %, intermediates concentration were 6.1 % and propane conversion rate was 99.8 %.

부산광역시 초등학교 양호교사의 학교구강보건에 대한 태도와 의견

전진호,류원향,이성훈 韓國學校保健學會 2002 韓國學校保健學會誌 Vol.15 No.2

Objectives : Because elementary school children are sensitive and prevalent to dental caries, oral health care program for the elementary school children (ESOHCP) should be met the first priority for the national oral health care program. This study was performed to proposed the guidelines for executing the efficient ESOHCP through the evaluation of present oral health care and education status based on the attitudes and opinions of health teachers. Methods : Subjects were 18 health teachers those are a part of the total 273 elementary school health teachers in Busan. From April to June 2001, questionnaire survey on the teacher's attitude and opinion, present status of oral health care and education in their own school was done. Data was analyzed by x^2-test t-test, ANOVA using SAS (ver 6.21) program. Results : Mean age of the teachers was 40 years (24∼58 years) and mean scale of the subject school was 32 classes (5∼58 classes). Above 90% of them agreed with the necessity and importance of ESOHCP, but actual level of concerning was lower. They gained the informations about oral health mainly from media (33%), PC net (26%), academic society (25%), and more used internet (p=0.012) in younger generation, Though most of them (96%) had a specified school dentist, only 58% had the experience of periodic oral health examinations in their own school. The major experienced ESOHCP was fluoride brushing and contest to choose the best healthy teeth. Oral health education given by the teachers was not professional but their own. About half (42%) of the teachers had never taken education during last one year. Major education materials were VTR tape (79%), teeth model (64%), CD (55%), booklet (50%), etc., and the teachers' preference was also VTR tape (43%) and CD (41%). When they need education materials, they frequently request to dentist's association (36%), academic society (35%), but rarely to dental clinics or dentists (6%). They prefer that two times (46%) of annual oral health education, with the contents of regular brushing (53%), but lower regular visit to clinics (13%). The interest to oral health care (p=0.016) increased with teacher's age. And, they agreed regular students education in case of higher interest(p=0.044). Intention about join in the model school program was decreased with scale of school (p=0.002). Conclusions : This result showed that the present status of ESOHCP is still insufficient. It considered that the health teachers' interest and role is most important for the maintenance and success of ESOHCP. The professional and efficient education program would be focused on the health teachers to induce drive on ESOHCP.

수중 벤젠의 광촉매 산화에 미치는 증감제의 영향

김성지,이춘식,김성우,이동근 경상대학교 환경보전연구소 1999 環境保全硏究所報 Vol.7 No.-

Focusing on benzene, a representative of volatile organic materials resulting from oil pollution, this paper studies the effects of photocatalytic oxidation and photo-sensitized ions, when TiO₂photocatalyst is added to photo-sensitized ions ; persulfate, sulfate, nitrate, nitrite, and chloride ion. This study found that the benzene in aqueous solution was efficiently removed through photocatalytic oxidation. In case of photocatalyst- sensitized-oxidation that the wavelength less than 330㎚ was intercepted by the use of Pyrex filter, an addition of persulfate ion, and sulfate ion showed some elevation of dissolution rate of benzene, whereas an addition of nitrite ion and chloride ion lowered the dissolution rate of benzene. The coexistence of persulfate ion and nitrate ion showed the same dissolution rate tendency as the result of photocatalytic oxidation of benzene. However, the coexistence of nitrite ion lowered the dissolution of benzene.

인쇄체 한글의 자소 인식에 관한 연구

楊天錫,徐聖煥,河錦淑 대구산업정보대학 1993 논문집 Vol.7 No.-

In this paper, Preprocessing(Thinning) Printed Korean Character was studied Algorithm in terms of the Blocking Masking and Decision step by effective Recognition. The results were as follow ; The Recognition Rates were 98 Percents. And Average Recognition Time were 0.42 seconds. Then the Recognition Rates was obtained a high compression Error by the Preprocessing. The effective Mesh Vector Method Required for study.

S-2 (3-aminopropylamino)ethylphosphorothioic acid (WR-2721)가 방사선에 조사된 흰쥐의 효소 활성에 미치는 영향

고성진,이천복,김재영 THE KOREAN SOCIETY FOR BIOMEDICAL LABORATORY SCIEN 1997 Journal of biomedical laboratory sciences Vol.3 No.1

S-2 (3-aminopropylamino)ethylphosphorothioic acid (WR-2721)이 방사선에 대한 방어효과에 미치는 영향을 규명하고자 Sprague-Dawley계 웅성 흰쥐를 대조군, WR-2721 단독투여군 (200㎎/㎏), X-선 단독조사군, WR-2721투여 (200㎎/㎏)후 X-선 조사한 병용군으로 나누어 X-선 8 Gy선량을 전신조사한 후 1,3,7,10일 간에 각각 혈액을 채취하여 효소활성치와 glucose함량 변화를 측정하여 다음과 같은 결과를 얻었다. X-선 단독조사군에서는 ALP와 AST의 활성치가 대조군에 비하여 감소하였으나 WR-2721 을 병용한 군에서는 그 감소폭이 줄어들었고, ALT와 LDH의 활성치는 X-선 단독조사군에서 대조군에 비하여 증가하였고, WR-2721을 병용한 군에서는 그 증가폭이 감소되었다. 또한 glucose치의 변동은 X-선 단독조사군에서 대조군에 비하여 유의성 있게 증가하였으나 WR-2721을 병용한 군에서는 그 증가폭이 감소되었다. 이로 미루어 보아 WR-2721이 X-선으로부터 생체내 주요 장기들을 보호하는 작용이 있음을 시사하고 있다. Male rats of Albino strain were divided into four groups, control group, X-irradiated group, WR-2721 treatment group and X-irradiated group treated with WR-2721. The radioprotective effect of treatment with S-2 (3-aminopropylamino)ethylphosphorothioic acid (WR-2721) in the dose of 200㎎/㎏ by intraperitonial injection on rats 20min prior to wholebody X-irradiation (8Gy) was studied. Each group determined serum alkaline phosphatase (ALP), aspartate aminotransferase (AST), alanine aminotransferase (ALT), lactate dehydrogenase (LDH) activities and contents of serum glucose after 1, 3, 7 and 10 days. The ALP and AST activities of X-irradiated group were significantly decreased (p<0.05) compared with that of control group, but X-irradated group treated with WR-2721 less decreased those enzyme activities compared with the X-irradiated group. X-irradiated group was significantly increased (p<0.05) ALT and LDH activities compared with that of control group, but X-irradated group treated with WR-2721 less increased those enzyme activities compared with the X-irradiated group. The concentration of serum glucose of X-irradiated group was signficantly increased (p<0.05) compared with that of control group, but X-irradated group treated with WR-2721 less increased compared with that of X-irradiated group. It may be considered that WR-2721 provided radioprotective effect of organs of body from X-irradiation.

21世紀 大田地域 科學技術都市 開發의 方向과 主要課題

오덕성,박천보 忠南大學校 地域開發硏究所 1994 地域開發論叢 Vol.6 No.-