모 축전지 회사 근로자들의 연폭로 지표에 대한 경시적 관찰

강명식,김용배,이용진,리갑수,김화성,황규윤,장봉기,이성수,안규동,이병국 순천향대학교 산업의학연구소 1998 순천향산업의학 Vol.4 No.1

Lead poisoning is still prevalent and one of important occupational disease in Korea. To prevent undue high lead burden and maintain good health condition of lead workers in lead using industries, periodic health examination and regular biological monitoring of lead workers are often required in addition to the fundamental improvement of their working condition. To evaluate the effect of comprehensive occupational health program with regular biological monitoring on the level of lead exposure of lead workers in lead using industries, 11 year database from 1983 to 1994 of one storage battery factory was reviewed. From 1983 to end of 1986 only periodic health examination was provided to the lead workers, but from 1987 comprehensive occupational health program with regular biological monitoring was provided to maintain better health condition of lead workers. Selected study variables for lead exposure were blood lead(PbB), zinc protoporphyrin in blood(ZPP), δ-aminolevulinic acid in urine(ALAU), hemoglobin(Hb), hematocrit(HCT). Information on sex, age and work duration was also reviewed. 5 years data from 1983 to 1987 and 3 years data from 1990, 1993 and 1994 were available for all lead exposure indices except ALAU which has only 5 years data from 1983 to 1997. The results of 11 years longitudinal observation of lead indices are all follows: 1. The mean value of ZPP of lead workers in 1983 was 148.7±73.1 ㎍/㎗(Male: 145.5±72.3, Female: 168.1±79.1), whereas that of ZPP of lead workers in 1994 was decreased to 64.3±32.7 ㎍/㎗(Male: 60.2±28.8, Female: 95.2±43.4). 2. The mean value of PbB of lead workers in 1983 was 56.4±18.8 ㎍/㎗(Male: 55.59±19.1, Female: 59.6±19.1), whereas that of PbB of lead workers in 1994 was dcreased to 35.4±11.9 ㎍/㎗(Male: 35.7±12.0, Female: 32.8±10.8). 3. The mean value of Hb of lead workers in 1983 was 14.1±1.4 g/㎗(Male: 14.4±1.1, Female: 11.7±0.8), whereas that of Hb of lead workers in 1994 was increased to 15.6±1.5 g/㎗(Male: 15.9±1.2, Female: 12.9±1.1). 4. Blood lead is most highly correlated with ZPP(r=0.522, male:0.54 and female:0.50) and also correlated with ALAU and work duration also. 5. The simple regression analysis of PbB and ZPP showed different coefficient of regression by the measurement year, but there was no difference of coefficient of regression between sex. The slope of equation of pooled data for 1983-1986 without comprehensive occupational health program was 2.16 and differed from that of pooled data for 1987-1994(1.25). This difference suggests that the unit effect of blood lead on ZPP was relatively smaller in later period of comprehensive occupational health program than carly period without comprehensive program. The slope change in the analysis of linear regression of PbB on ZPP in lead workers can be used to evaluate the possible effect of health intervention to prevent undue high lead absorption in lead using industries. 6. 11 years occupational health service in this storage battery factory brought out considerable improvement of health status of lead workers in terms of decrease of PbB and ZPP and increase of Hb and the improvement was more remarkable after the introduction of comprehensive occupational health program.

한국인 고정식 교정 환자의 치태, 치은염 및 탈회의 초기 변화에 관한 연구

강국진,손병화 대한치과교정학회 1999 대한치과교정학회지 Vol.29 No.3

구강내 고정식 교정장치의 장착으로 인해 치은염 및 치주염, 법랑질 탈회 및 치아 우식증, 치근 흡수, 치수변화 등 일시적 혹은 영구적 손상이 야기될 수 있다. 이러한 부작용발생의 원인으로 치태의 증가, 세균수의 증가와 조성의 변화 등을 들 수 있고 이러한 변화는 치은의 염증과 탈회를 유발한다. 이에 본 연구는 한국인 고정식 교정장치 장착환자에서 장치장착 전후의 치태, 치은염 그리고 탈회의 변화를 시간에 따른 변화, 남녀간의 차이 그리고 좌.우 소구치 부위간의 차이를 통해 알아보고자 전신질환이 없고, 여자의 경우 초경이 지난 사람을 대상으로 대조군은 연세대학교 치과대학생48명(남자 26명, 여자 22명)과 실험군으로 고정식 교정장치로 치료할 환자 73명(남자 36명, 여자 37명)을 모두 잇솔질교육(TBI)을 실시한 후, 치태치수, 치은염지수 그리고 탈회지수에 대하여 대조군은 3주 간격으로 2회를, 실험군은 최초측정을 하고 공정식 교정장치를 부착한 뒤 3주, 6주, 9주에 걸쳐 총 4회 측정을 실시하였다. 이상의 자료를 분석한 결과 다음과 같은 결론을 얻었다. 1. 치태지수(PI)는 고정식 교정장치 장착후 3주의 측정 이후 서서이 증가하였다. 2. 치은염지수(GI)는 고정식 교정장치 장착후 3주의 측정 이후 치태 지수의 증가보다 좀더 바른 속도로 증가하였다. 3. 탈회는 3주와 6주 사이에서 발생하기 시작하며, 탈회지수(DI)는 처음과 비교하여 6주 측정시부터 증가하기 시작하였으나 통계적으로 유의한 차이를 발견할 수는 없었다. 4. 좌.우 소구치 부위의 비교에서는 실험군의 치태지수와 치은염지수에서 우측에서 높은 값을 보였다. Intraoral fixed type of orthodontic appliance can cause reversible or irreversible damages such as gingivitis, periodontitis enamel decalcification, dental caries, root resorption, and pulpal changes. Such adverse effects are brought by increase in dental plaque as well as oral flora. Such an increase cause gingival inflammation and enamel decalcification. The purpose of this study is to get knowledge on initial changes in dental plaque, gingivitis, and enamel decalcification after bonding fixed orthodontic appliances according to time flow, gender, and sides(right/left) of premolar region. For control group, 48 students of dental college, Yonsei university(26 males, 22 females) were chosen; for experimental group, 73 orthodontic patients(36males, 37 females) who will be treated with fixed appliances were chosen. All the subjects had no systemic disease, juvenile periodontitis and all the females had passed their menarche. Tooth brushing instruction was given to all the subjects prior to the experiment. for control group, plaque index, gingival index, and decalcification index were measured twice at 3 weeks interval ; for experimental group, the same was done prior to, 3, 6, 9 weeks after bonding fixed appliances. The following results were obtained: 1. In plaque index 3 weeks after placement of appliances, and it showed gradual increase afterwards. 2. In gingival index 3 weeks after placement of appliances, and afterwards it showed increase at a faster rate than plaque index. 3. Enamel decalcification began to show between 3 and 6 weeks after bonding fixed appliances. Decalcification index began to increase 6 weeks appliance placement, but there was no statistical significance. 4. When the comparison was made between two sides of premolar region, the right side showed greater index in plaque and gingival index of experimental group.

中風의 治療에 있어 淸熱法에 對한 文獻的 考察

강화정,문병순 한국한의학연구원 1996 한국한의학연구원논문집 Vol.2 No.1

The literatual study on the therapy for cleaning away heat with apoplexy therapy, the result were obstained as follows. 1. In apoplexy therapy, therapy for clearing away heat is used excessive heart - fire by overacting of the five emotions, liver fire, deficiency of kidney - fluid, wind - heat. 2. The fire of aetiology of apoplexy is used therapy for clearing away heat, in aspect of viscera and bowels, divided into heat-fire, liver-fire, deficiency fire of kidney yin, wetness-phlegm of spleen heat. The treatment is clear away heart-fire, clear away liver-fire, clear away spleen-heat and sthenic water. 3. Symptom of excessiveness symptom-complex is used therapy for clearing away heat that are fever, flushed face, halitosis, heart burn, easy anger, apoplestic stroke, unconsciousness, trismus, paratysis, constipation, red tongue with yellow coat, taut-smooth pulse or full rapid pulse and symptom of insufficiency symptom - complex that are dizziness, tinitus, blurring of vision, deficiency sleeping, dreaminess, lassitude of the loins and legs, hemiplegia, red tongue with white coat or thin - yellow coat, taut- therapy-rapid pulse. 4. Therapy for norish vital essence - clearing away heat is availed in excessive fire caused by deficiency of yin of the liver and kidney, therapy for break through phlegm - clearing away heat in stagnant, heat, therapy for waking up a patient from unconsciousness - clearing away heat in stagnant heat, therapy for waking up a patient from unconsciousness - clearing away heat yang type sthenia - syndrom of coma of apoplexy involving viscera and bowels. 5. Commonly used recipes of therapy for clearing away heat are Yang gyoksan(凉膈散), Bang pungtongseongsan(防風通聖散), Sotongseongsan(小桶聖散), Jibodan(至寶丹), Supungsungisan(授風腥氣散), Woowhangchengshimwhan(牛黃淸心丸), Chengungsekgotang(川芎石膏湯), Samwhatang(三化湯) etc in excessiveness symptom - complex, and are Yukmihiwhangweon(六味地黃元), Jiwhangtang(地黃湯), Palmiji whangtang(八味地黃湯) etc in insufficiency sumptom - complex.

성별 및 수준별 10학년 학생들의 과학 성취도 분석

이병국,강용희,유계화 慶北大學校 科學敎育硏究所 2004 科學敎育硏究誌 Vol.28 No.-

The purpose of this study is to examine the differences of science achievement by gender and by level of academic achievement. The subjects are consisted of 211 male and 212 female 10th graders in Daegu Metropolitan City and are also divided into three groups: low-, average-, and high-academic achievement level. All kinds of examinations which the subjects had taken during 2003 academic year were analyzed (e.g., the regular, trial, entrance diagnostic evaluation and formative examinations). The results indicate that statistically significant differences exist on the scores between male and female students. In general, the scores of female students (both low- and average-academic achievement level) are higher than male students. However, the scores for male students who had high level of academic achievement are higher than those of female students who had high level of academic achievement. Specifically, the scores of the regular examinations for female students are higher than those of male student. However, female students have no higher scores in the trial examinations than male students compared to the other examinations. This corresponds to Kimball(1989)'s hypothesis that female students are poor at the external examinations. In addition, the variation of scores is very steep in the entrance diagnostic evaluation and formative tests compared to regular and trial examinations. It seems that the achievement on tests does not determined by gender, however, the students' state of seriousness related to the tests. Additional analysis reveals that male students have made weaker achievement on scores of biology in the regular and trial examinations. Female students who had high-academic achievement level have made higher scores on the regular examination. In general, it seems that males had been more affirmative than females in the attitude related scientific subjects. However, there is no significant correlation between scientific attitude and science achievement. Based on the results of this study, there are no gender differences in the attitude for learning science. It appears that students who had high-academic achievement level are tended to have more positive attitude toward studying science.

혈관외피종 -1증례 보고-

강유미,지미경,양기화,강석진,김병기,김선무,정수일 대한병리학회 1990 Journal of Pathology and Translational Medicine Vol.24 No.2

태권도 경기규칙 개정에 대한 연구

류병관,윤상화,진중의,강성철 龍仁大學校 武道硏究所 1997 武道硏究所誌 Vol.8 No.2

Taekwondo became one of worldwide famous sport. There are more than tenmillian people learning Taekwondo all of the world. Nevertheless Taekwondo game is not very much papular in spectator because the simplicity of the game. Taekwondo game consist of three round system and take one point system. Each round take Two to three minute and 30 second to 1 minute break will be taken every game. This situation can blocking the spectator´s instret of the game and also they can be feel the game is so loose because of stopping the contiguous. One point system is led the fixation of the skill. There is only one point exist in the match and it doesn´t make any sense to perform any high skilled techniques. Performing the high skilled techniques is may have chance to get disadvantage in get point because of it´s performance time. Therefor one simple and clear techniques are more useful in the match to get a point than high skilled technic. This is the main reason that spectators do not have any excitement about game. The game can´t be interesting. The result of this study shows that the rules of Taekwondo competition should be changed to more excite and interest way for spectators. The multi point system should be acpected and circle ground will be more valuable for improve the techniques. The results are also amphasized that warning and deduction should be lessened for active and dinamic game for the spetators.

혈관외피종 -1증례 보고-

강유미,지미경,양기화,강석진,김병기,김선무,정수일 대한병리학회 1990 Journal of Pathology and Translational Medicine Vol.25 No.5

p-n 접합을 이용한 ISFET의 전기적 절연

이강열,강명성,김창수,서화일,권대혁,손병기 경북대학교 센서기술연구소 1992 센서技術學術大會論文集 Vol.3 No.1

계란으로 부터의 E. coli 특이 항체 대량 생산에 관한 연구

인치웅,강창수,강병화 안성산업대학교 1995 論文集 Vol.27 No.-

포르말린으로처리한 장독소 E. coli을 20주령닭(이사브라운)에 면역시켰을 때 약 2주 경과 후 계란에서 항 E. coli 특이 항체의 생성을 확인할 수 있었고, 8주 후에 최고치에 도달하였다. 그리고 난황의 특이 항체 역가는 25주 후까지 일정하게 유지되었다. 계란 항체 단백질은 PEG 분리·정제법으로 8.66㎎/㎖ 의 수율로 항체를 얻을 수 있으며, 이 항체의 역가는 파쇄된 E. coli을 이용한 ELISA로 측정하였다. 이 항체를 Trypticase Soy Brith에 1∼10㎎/㎖의 비율로 첨가하여 E. coli과 혼합 배양하였을 때 E. coli의 생장을 현저히 억제함을 알 수 있어 계란 항체를 이용한 설사 예방·치료제 및 건강 보조 식품 개발이 가능할 것으로 보인다. Hens immunized with formalin-treated E. coli antigen, and anti-E. coli antibody(IgG) could be detected in egg yolks 2 weeks after the first antigen injection, reached peak at about 8 seeks. Levels of specific antibody activity in egg yolk continued 25 weeks after first immunizqation. Active immunoglobulin protein was isolated from egg yolk of immunized chickens with PEG purification method. Purification yield was 8.66㎎ per 1㎖ egg yolk. The antibody activity was measured by using enzyme-linked immunosorbent assay (ELISA) with sonicated E. coli cell as antigen. The anti-E. coli antibody(IgG) inhibited E. coli growth in trypticase soy broth culture at low concentration(1∼10㎎ IgG/㎖ TSB). It appears possible to use IgG for the formulation of food and therapeutic products, especially diarrhea.

BaFBr:Eu^2+ 형광체의 열발광 및 광자극발광 특성

도시홍,서효진,강갑중,김영국,김도성,김성환,김찬중,이병화,김완,강희동 한국센서학회 2002 센서학회지 Vol.11 No.5

BaFBr:Eu^2+ 형광체를 제조하고, 이 형광체의 열발광 특성과 광자극발광 특성을 조사하였다. 이 형광체의 열발광 g1ow 피이크 온도는 352K와 448K였으며, 주 피이크(352K)에 관여하는 트랩의 활성화에너지는 약 0.96eV이었다. 또한 이 형광체의 광자극발광 스펙트럼의 파장범위는 350~450nm 사이였으며, 광자극발광에 기여하는 트랩의 활성화에너지는 약 0.98eV이었다. 열발광트랩과 광자극발광 트랩의 활성화에너지는 실험오차 내에서 일치하였다. BaFBr:Eu^2+ phosphors were prepared, and the thermoluminescence(TL) and photostimulatedluminescence(PSL) of the prepared phosphors were measured. Two glow peaks around 352 and 448 K are observed for x-ray irradiated BaFBr:Eu^2+ phosphors, and the activation energy of the main glow peak(352 K) was about 0.96 eV. The spectral range of the PSL was 350 ~450 nm, and the activation energy of the trap giving rise to PSL was about 0.98 eV. The activation energy of the traps giving rise to TL is agreed to those giving rise to PSL within experimental error.