수산화세륨(Ⅲ)으로부터 질산암모늄세륨(Ⅳ)의 제조

윤호성,김철주,이진영,김성돈,김준수,유승준 한국화학공학회 2003 Korean Chemical Engineering Research(HWAHAK KONGHA Vol.41 No.3

본 연구에서는 수산화세륨으로부터 질산세륨 용액 제조 후 질산암모늄 첨가에 의한 질산암모늄세륨 제조시, 출발용액의 산도와 농도 그리고 질산암모늄 첨가량, 반응온도 및 반응시간이 질산암모늄세륨 합성에 미치는 영향을 고찰하였으며, XRD, SEM 그리고 TGA 분석을 통하여 결정의 형태 및 구조에 대한 고찰을 수행하였다. 4가의 수산화세륨을 질산에 용해한 질산세륨(Ⅳ)수용액으로부터 질산암모늄 첨가에 의한 질산암모늄세륨 제조시 회수율을 고려한 최적 합성조건은 출발물질의 세륨 농도 70-100g/l, 출발용액의 산도 7 mol/l, 질산암모늄 첨가량 2.5당량, 감압·가열온도 65℃ 및 반응시간 15-30min.이었으며, 제조된 질산암모늄세륨의 결정 화학식은 (NH_4)_2[Ce(NO_3)_6) · ×H_2O(x=6-8)인 것을 알 수 있었다. Synthetic process of ammonium cerium nitrate from cerium hydroxide was presented and influences of concentration and acidity of starting solution, addition quantity of ammonium nitrate, reaction temperature, reaction time on the yield of ammonium cerium nitrate are discussed. The shape and composition of crystal were determined by SEM, thermogravimetry differential thermal, x-ray diffraction and chemical analysis. The optimum synthesizing conditions of ammonium cerium nitrate were discribed as follows; rare earth concentration of starting solution 70-100 g/l. acidity of starting solution 7 mol/l, addition quantity of ammonium nitrate 2-3 equivalent, the condition of rotary evaporation 65℃ and reaction time 15-30 min. It was also known that the chemical formulae of ammonium cerium nitrate was (NH_4)_2[Ce(NO_3)_6] ·×H_2O(x=6-8) from TGA.

機能性胃腸障碍 및 急性肝炎 患者에서 Clebopride에 依한 症狀의 好轉과 胃內容物排出 時間과의 關係

范熙承,金成烈,鞠敦杓,朴光淑,尹鍾晩,崔元,金文烈 최신의학사 1985 最新醫學 Vol.28 No.6

급성 단순하부요로감염의 경험적 치료로써 레보플록사신 3일요법의 효과

이지열,이승주,이상돈,정희창,오봉렬,김세웅,최한용,조용현,윤문수 대한화학요법학회 2001 대한화학요법학회지 Vol.19 No.4

목적 : 급성 단순요로감염의 원인균에 대한 내성증가에 따른 경험적 1차치료의 선택에 대한 어려움으로 인하여 최근 미국의 Infectious Disease Society of America(IDSA)에서는 이에 대한 가이드라인을 제시하였다. IDSA의 가이드라인에 따르면 그 지역의 TMP-SMX에 대한 내성균주의 비율이 10-20% 이상일 때는 급성 단순요로감염의 경험적 1차치료제로 플루오로퀴놀론제를 선택하도록 하였다. 이에 저자들은 급성 단순하부요로감염 환자에 있어서 레보플록사신에 대한 임상적, 미생물학적 유효성 및 안전성을 알아보고자 하였다. 방법 : 시험은 전향적, 비맹검, 공개, 비비교, 다기관 임상시험으로 시행되었고 전국 5개 대학병원을 방문한 56명의 급성 단순하부요로감염 환자에게 레보플록사신 100㎎을 1일 3회, 3일간 경구 투여하여 1-3일 후에 추적 관찰하였다. 결과 : 평가가 가능하였던 53명의 환자 중 50명의 환자에서 치료 후 5-7일 후에 증상이 소실되었거나 호전되어 94%의 임상적 유효성을 보였으며, 51명의 환자에서 치료 후 1-3일 후에 원인균이 제거되어 96%의 미생물학적 유효성을 보였다. 약물 관련 이상반응은 2%의 환자에서 나타났으나 이로 인한 치료 중단 사례는 없었으며 심각한 생화학적 또는 혈액학적 이상반응은 나타나지 않았다. 결론 : 레보플록사신 100㎎ 1일 3회 3일 요법은 임상적, 미생물학적 유효성이 뒤어나며 안전한 치료요법으로 급성 단순하부요로감염의 경험적 1차 치료에 적합할 것으로 생각된다. Background : The increasing frequency of clinical failure of uncomplicated urinary tract infections (UTIs) may be due to emerging resistance to commonly prescribed antimicrobials. Infectious Diseases Society of America guidelines state that uncomplicated UTIs should be treated empirically with a fluoroquinolone, if the proportion of trimethoprim/sulfamethoxazole-resistant isolates in the community is >10%-20%. The clinical efficacy and safety of levofloxacin were assessed in patients with acute, uncomplicated lower urinary tract infection. Methods : The study was a multicenter, prospective, open label, non-comparative, non-blinded trial. Fifty-six patients with acute, uncomplicated symptomatic lower urinary tract infections from five university hospitals were treated with levofloxacin 100㎎ tid for 3 days and were followed up for 1 to 5 days. Results : Fifty-three of the 56 patients were evaluable. Ninety-four per cent of patients were symptomatically cured or improved by the fifth to seventh day after therapy started. Bacteriological eradication of initial pathogen was achieved by 1 to 3 days in 96%. Drug related adverse experiences were seen in 2% of patients. None necessitated cessation of therapy. No significant biochemical or hematological abnormalities occurred. Conclusion : These results demonstrate the clinical efficacy and safety of empirical 3-day levofloxacin for acute, uncomplicated urinary tract infections.

性別 및 年齡에 따른 體格과 體力의 特性과 變化에 關한 縱斷的 硏究 Ⅰ : 體育專攻 大學生을 中心으로 Emphasised on College Men of Physical Education

金尙國,姜東洹,金昇一,徐再均,金耕知,孫斗玉,鮮于攝,崔榮烈,尹宇相,金亨燉,方永鎭,李錫元 慶熙大學校 體育科學大學 1988 體育科學論叢 Vol.- No.1

The purpose of this study was to compare the characterists and change in physique and physical function by college student of physical education major(287males and 40 females of age groups ranging from 18 to 26). The results were as following; 1) The characteristics of physique and physical function by sex and age. ① The male group of 18yrs old showed higher values in Height, Weight, Upper Limb Length, Strength, Flexibility, and Vital Capacity than any other groups, but female group showed lower values in Height, Weight, Chest Girth, Lower Limb Length, Thigh, Girth, Calf Girth and all of the Physical function. ② The male group of 19yrs old showed high values in power and Agility, then female group showed in Strength and Flexibility. ③ The male group of 20yrs old showed the lower values in Weight, Waist Girth, Upper Limb Length, Fore Arm Girth, Thigh Girh.Calf Girth, Vital Capacity, and female group are very lowed in Upper Arm Lenght, Fore Arm Length, Skin Fold Thickness and 5 minute Run. ④ The male group of 23yrs old showed the high values in Upper Arm Girth, Fore Arm Girth and Balance, and then female group higher in Weight, Chest Girth, Waist Girth, Upper Arm Girth, Fore Arm Girth, Thigh Girth, Power, Shuttle Run, Balance and vital capacity than any other age Groups. ⑤ In male group, Chest Girth, and Blood Pressure were significantly related, and Side Step and Trunk Extension were nagatively related to the age at 0.1% level, and then in female group, Sargent Jump, Standing Long Jump and Vital Capacity were showed a significantly related at 0.5% level. 2) The difference of physique and physical function between male and female by age. ① Everage difference in whole physique items except skinfold thickness was 9.8%, and that 21.1% in all of physical function except Trunk Flextion between male and female group subjects. ② About the ages, the 18yrs old male group showed the 22.8% higher values of 26 items, but 22yrs old male group were about 12.2% in 23 items, thus it is very lower than any other groups. 3) The difference of physique and physical function between General group and physical education group in age-matched. ① In the physique male physical education groups showed about 7% higher in Weight, Chest Girth, Upper Limb Length, Upper Arm Girth, Thigh Girth, and female group showed about 7% higher in Weight and Upper Limb Length. ② In the physical function, Trunk Flextion, 5 minute Run, and Blood Pressure(Diastolic) were about 8% high values in whole group, and female group showed about 8% higher in Standing Long Jump, Shuttle Run, and Trunk Extension. ③ In 22yrs old male and female physical education group were very dominated in physique and physical function than the other age group against the general group.

性別 및 年齡에 따른 體格과 體力의 特性과 變化에 關한 縱斷的 硏究Ⅱ : Emphasised on College Men of Department of Physical Education 體育專功 大學生을 中心으로

金尙國,姜東洹,張周鎬,金昇一,徐再均,金耕知,孫斗玉,鮮于攝,崔榮烈,尹宇相,金亨燉,方永鎭,朴英震,柳在忠 慶熙大學校 體育科學大學 1989 體育科學論叢 Vol.- No.2

The purpose of this study was to compare the characteristics, change in physique and physical function of college students majoring physical education and Taekwondo (454 males and 64 females of age groups ranging from 18 to 26). The results are as following: 1. The male group of 23yrs old in physical education showed highest values in 7 items(Weight, Chest Girth, Fore Arm Girth, Thigh Girth, Calf Girth, Scapular Skinfold Thickness and Suprailiac Skinfold Thickness). 2. In the Physical function, the male group of 18yrs old showed highest values in Power, Flexibility, and then 21yrs old at Back Strength, Vital Capacity, and 23yrs old at Grip Strength, and 25yrs old at Blood Pressure, respectively. 3. In the physique, the male group of 22yrs old showed highest values in Weight, Chest Girth, Thigh Girth, Calf Girth, and then 24yrs old Upper Arm Girth, Fore Arm Girth, and 19yrs old at Height, Upper Limb Length, respectively. 4. In Physical Function, the 22yrs old showed highest values in Back Strength, Vital Capacity, and then 23yrs old at Side Step, Trunk Extension, but 18yrs old showed lower Values in Grip Strength, Side Step, Vital Capacity and Blood Pressure. 5. The female group of 22yrs old showed highest values in 8 items(Height, Sitting Height, Waist Girth, Upper Limb Length, Lower Limb Length, Skinfold Thickness), and then 18yrs old at 5 items (Weight, Upper Arm Girth, Fore Arm Girth, Thigh Girth, Calf Girth), respectively. 6. In the physical function, the 22yrs old showed highest Values in Grip strength, Back Strength, Power, 5 Minute Run, and 18yrs old at flexibility, Harvard Step Test, respectively. 7. In the change of the physique for two years(1988-1989) in the male group, majoring Physical education the 22yrs old showed increase in 4 items, and the 20yrs old in 3 items, but 18yrs old showed decrease in 3 items. 8. In the change of the physical function for two years in the male group, the 20yrs old showed increase in 4 items, and the 21, 25, 26yrs old in 3 items, but the 19yrs old showed decrease in 6 items, and 18, 22 yrs old in 5 items, respectively. 9. The change of the physique for two years in all female group, of 18, 19, 20, 21yrs old showed increase in 11 items except Skinfold Thickness. 10. In the change of physical function for two years in female group, the 18yrs old showed increase in 3 items, and then 20yrs old in 5 items, but 19, 22yrs old decreased 12 items, respectively. 11. The highest significant difference in physique between male and female was found in weight(mean Value 17.5%), and the lowest difference was found Thigh Girth, Calf Girth(1,3%), Upper Limb Length, Lower Limb Length(2.5%). 12. The Highest difference in physical function was Strength (mean Value 40%), Vital Capacity (33%), Power(22%), but Lower Trunk Flexion, Foot Balance(3.4%). 13. In the difference of Physique and physical function between physical education major and taekwondo major, the physical education showed higher values in skinfold Thickines (mean Value 16.5%), Weight, Waist Girth(4.7%) and Strength(33%), Endurance(5.6%), but subjects majoring Taekwondo showed higher values in Flexibility and Foot Balance. 14. In all male groups, Waist Girth, Scapular Skinfold Thickness, Back Strength, Sargent Jump, Trunk Extension and Diastolic Blood Pressure were showed a significantly related at 0.001 level.

충진 입자 계면간 거리가 물성에 미치는 영향

돈윤승(Yoon Seung Don),심미자(Mi Ja Shin),김상욱(Sang Wook Kim) 한국표면공학회 1991 한국표면공학회지 Vol.25 No.4

전장 유전체 관련성 분석을 통한 한우 도체수율 관련 양적형질좌위 탐색

이승환,임다정,당창권,장선식,김형철,전기준,연성흠,장길원,박응우,오재돈,이학교,이준헌,강희설,윤두학 충남대학교 농업과학연구소 2013 농업과학연구 Vol.40 No.2

Genome-wide association study was performed on data from 266 Hanwoo steers derived from 66 sire using bovine 10K mapping chip in Hanwoo (Korean Cattle). SNPs were excluded from the analysis if they failed in over 5% of the genotypes, had median GC scores below 0.6, had GC scores under 0.6 in less than 90% of the samples, deviated in heterozygosity more than 3 standard deviations from the other SNPs and were out of Hardy-Weinberg equilibrium for a cutoff p-value of 1-15. Unmapped and SNPs on sex chromosomes were also excluded. A total of 4,522 SNPs were included in the analysis. To test an association between SNP and QTL, GWAS for five genetic mode(additive, dominant, overdominant, recessive and codominant) was implemented in this study. Three SNPs (rs29018694, ss46526851 and rs29018222) at a threshold p<1.11×10-5 were detected on BTA12 and BTA21 for dressing percentages in codominant and recessive genetic mode. The G allele for rs29018694 has 4.9% higher dressing percentage than A allele, while the T allele for ss46526851 has 2.57 % higher dressing percentage than C allele. Therefore, rs29018694 SNP showed a bigger effect than the other two SNPs (ss46526851 and rs29018222) in this study. In conclusion, this study identifies three loci with moderate effects and many loci with infinitesimally small effect across genome in Hanwoo.

Pure Signet Ring Cell Type Early Gastric Carcinoma with Extensive Lymph Node Metastases -A Case Report

Seung Kew Yoon,Sang Wook Choi,Chang Don Lee,Hee Sik Sun,Doo Ho Park,Boo Sung Kim,Mi Kyung Jee,Seok Jin Gang,Sun Moo Kim 대한내과학회 1987 The Korean Journal of Internal Medicine Vol.2 No.2

Predictive Factors for Beneficial Response to Interferon-alfa Therapy in Chronic Hepatitis C

( Seung Kew Yoon ),( Sung Soo Kim ),( Young Min Park ),( Kyu Sik Shim ),( Chang Don Lee ),( Hee Sik Sun ),( Doo Ho Park ),( Boo Sung Kim ),( Wang Shick Ryu ),( Joong Myung Cho ) 대한내과학회 1995 The Korean Journal of Internal Medicine Vol.10 No.2

The Relationship between Virological Characteristics of Hepatitis C Virus ( HCV ) and Reactivity to the Regional Specific Proteins of HCV

(Seung Kew Yoon),(Young Min Park),(Byung Hoon Byun),(Si Hyun Bae),(Jin Mo Yang),(Byung Min Ahn),(Young Sok Lee),(Chang Don Lee),(Hee Sik Sun),(Boo Sung Kim) 대한내과학회 2000 The Korean Journal of Internal Medicine Vol.15 No.2

N/A Background : Although the polyproteins of hepatitis C virus(HCV) are processed and formed in nearly equimolar amounts, individual functional proteins have a discrepancy in their time of appearance following HCV infection and eliciting immune response. This study was conducted to compare the reactivity toward regional specific HCV protein in relation to virological characteristics, including HCV genotype and HCV replication. Methods : Sera from forty-five patients with chronic HCV infection were analyzed through the experiments of the recombinant immunoblot assay(RIBA-2), HCV genotyping and HCV RNA quantitation. Results : The frequencies of seropositivity to C22-3, C33C, C100-3 and 5-1-1 proteins were 91.1%, 91.1%, 64.4% and 53.3%, respectively, of all the patients, and thus the antibodies to C22-3 and C33C proteins were found more frequently (p <0.05). The antibody responses between core or NS3 proteins and NS4 proteins showed more discrepancy in the HCC group than that in the CH group, implying a possibility of oncogenic potential of core or NS3 gene in hepatocarcinogenesis. The detection rate of antibodies to C22-3 and C33C, in accordance with serum HCV RNA levels, was significantly higher in highly viremic patients than that in low viremic patients (p <0.05). Antibodies to C22-3, C33C, C100-3 and 5-1-1 were also found more frequently in patients with HCV genotype 1b, compared to those with HCV genotype 2a (p <0.05). Conclusion : These results suggest that antibody detection of HCV may depend on the virological characteristics of HCV, the levels of HCV replication and HCV genotype and, therefore, HCV RNA detection using RT-PCR technique is essential for confirmatory diagnosis for HCV infection. Furthermore, the HCV core or NS3 Protein may play important role in hepatocarcinogenesis.