개량형 치과용 시멘트의 용해도 및 피막도에 관한 비교연구

김철위,김종배,백대일,이용근 대한치과기재학회 1987 대한치과재료학회지 Vol.14 No.1

The purpose of this study was to evaluate the solubility, disintegration and film thickness of twenty-five commercially available cements-zinc phosphate (AD, AS, DH, FZ, GCB, HC, HZ, LZ, LMZ, SC and TZ), polycarboxylate (DA, DR, GCC, HPC, LC, PF, SCB, and SU) and glass jonomer (HB and OS) cements used in Korea. These tests were performed according to the modified methods of KDA Specification No. 1, 2, ISO 1566, 4104, and ANSI/ADA Specification No. 8, 61. The following results were obtained: 1. The solubility of the glass ionomer cements was higher than that of the zinc phosphate and the polycarboxylate cements. 2. The film thickness of the zinc phosphate cements was slightly higher than that of the polycarboxylate and the glass ionomer cements. 3. The solubility and the disintegration of the glass ionomer cements showed considerable differences according to the products.

초등학교와 중학교 과학 교과서의 화학 영역에 대한 연계성과 중학생들의 화학 개념에 대한 인식 분석

韓有花,강대훈,梁一鎬,白盛惠,朴國泰 한국교원대학교 과학교육연구소 1999 청람과학교육연구논총 Vol.9 No.1

제 6차 교육과정에 따른 초등학교와 중학교 과학 교과서의 화학 영역에 대한 연계성을 분석하고, 화학 개념에 대한 중학생들의 인식을 조사하여, 학습자 수준에 맞고 연계성 있는 과학 교과서 제작의 기초를 제공하고자 한다. 이를 위하여 초등학교와 중학교 과학과목의 교육목표와 화학 영역 내용체계간의 연계성을 분석하고, 화학 개념에 대한 중학생들의 인식을 조사하였다. 연구 결과, 제 6차 교육과정의 초등학교와 중학교 과학과 교육목표는 거의 반복 진술되어 있음을 알 수 있었다. 또한, 물질의 미시적 세계를 다루고 있는 물질의 구성 영역에서 초등학교와 중학교간의 단원별 목표와 내용체계의 간격이 다소 큰 것으로 보아 연계성이 부족하다는 것도 알 수 있었다. 그리고 연계성이 부족한 영역에 대해 학생들은 대체적으로 이해하기 어렵다는 반응을 보였으며, 연계성 있는 내용조직이 학생들의 내용 이해에 영향을 줄 수 있다는 것을 알 수 있었다. This study was to analyze the articulation between chemistry contents of science textbooks at elementary and middle school level, to survey students' perceptions on chemistry concepts, to establish guidelines for science textbooks that not only meet the needs of learners but also fit in a coherent way. In order to do this, we analyzed links of the aims and the organization of chemistry contents of elementary and middle school science textbooks, we also surveyed students' perceptions on chemistry concepts students had retained. The study revealed that the 6th middle school curriculum was almost a duplicate of the elementary school syllabus. And there was no interrelation between the organization of chemistry contents and the aim of the chapter which built up a logical picture of the world at a molecular level. It was also found that the lack of coherence between science textbooks in elementary and middle school was a major cause of student difficulty.

모친구강보건지식이 유치우식증의 발생과 치료에 미치는 영향

심선주,김종배,백대일,문혁수 대한구강보건학회 2003 大韓口腔保健學會誌 Vol.27 No.3

The purpose of this study was to assess the influence of mothers' oral health knowledge(OHK) on prevalence and treatment of deciduous dental caries in their children. 295 aged 4 and 5-year-old children and their mothers were selected in Seoul. The mothers who responded the pretested questionnaires were consisted of 16 items regarding home OHK, school OHK and community OHK. Data were collected by oral examination on children and questionnaire survey on their mothers. The results were as follow; 1. Mothers' OHK was an influencing factor of incidence of children's dental caries. Therefore, The relation of Mothers' OHK and the score of children's dmft was showed inverse relationship. 2. Mothers' home OHK was not an influencing factor of treatment of children's dental caries. It is suggested that comprehensive incremental oral health care for children should be educated for their mothers. 3. Mothers' school OHK was not an influencing factor of incidence of children's dental caries. 4. Mothers' community OHK was not an influencing factor of incidence of children' dental caries. 5. Mothers' school OHK and community OHK was not an influencing factor of treatment of children's dental caries. 6. It is recommended that school OHK and community OHK should be included on the process of oral health knowledge education.

결장방광확대술 후 결장방광문합부위에서 발생한 선암 1예 : Report of 1 Case

백경석,윤성욱,김대우,김재일,박석산 인제대학교 백병원 2002 仁濟醫學 Vol.23 No.2

A 42-year-old male patient with bladder adenocarcinoma arising in the anastomosis site after colocystoplasty is reported. Malignancies in bladder augmentations has been well-described and estimated to occur in 1.3% of cases. The malignancy was associated with intestinal segment, suture line, bladder remnant and bacterial colonisation of the urine and urinary nitrosamine level. So, close long-term follow-up of these patients is essential. The clinical features and review of diseases are briefly discussed.

전신성 홍반성 루푸스 신염 활성도와 소변 Transforming Growth Factor-β Induced Gene-h3 (βig-h3)의 연관성

김일 ( Il Kim ),홍철호 ( Cheol Ho Hong ),조현석 ( Hyun Seok Cho ),유선진 ( Sun Jin You ),백창희 ( Chang Hee Paik ),이혜순 ( Hye Soon Lee ),엄완식 ( Wan Sik Uhm ),김태환 ( Tae Hwan Kim ),전재범 ( Jae Bum Jun ),유대현 ( Dae Hyun Yo 대한류마티스학회 2003 대한류마티스학회지 Vol.10 No.4

Background: TGF-β-induced gene-h3 (βig-h3) is a novel gene induced by active TGF-β and the association with other renal disease is reported. Lupus nephritis is characterized by excessive extracelluar matrix accumulation and the implication that TGF-β is increased in lupus nephritis is known. We measured the urinary βig-h3 in lupus nephritis and sought its association with the activity of lupus nephritis through renal biopsy. The objective of this study was to examine urinary βig-h3 excretion in lupus nephritis and the association with activity of lupus nephritis. Methods: Fifteen patients (median age 32.6±2.9 years, range 18∼64) who developed lupus nephritis underwent renal biopsy. At the time of biopsy, they showed significant proteinuria. Total urinary βig-h3 concentration was assayed by enzyme-linked immunoabsorbent assay and expressed as a ratio to urinary creatinine concentration. Results: There were correlations between urinary βig-h3 and the reduction of C3 (r=-0.566, p=0.028<0.05), the magnitude of proteinuria (r=0.531, p=0.042<0.05). The Activity Index, Chronicity Index in the renal biopsy, C4, anti-dsDNA Ab titer were not significantly correlated with urinary βig-h3 excretion, but the patients with high Activity Index had the increased level of urinary βig-h3. Five patients who had fibrinoid necrosis in renal biopsy showed higher level of urinary βig-h3 than the others (107.78±43.02 vs. 50.21±10.12 ng/ml, p=0.061) Conclusion: In this study, There is some correlation between urinary βig-h3 and the activity of lupus nephritis. Urinary βig-h3 may play a role in predicting the active lupus nephritis. A further study is needed in large population and in situ expression of βig-h3.

복합운동이 대사증후군을 동반한 폐경 후 복부비만 중년여성의 혈청 RBP4와 Estradiol(E2) 및 인슐린저항성에 미치는 영향

김대은 ( Dae Eun Kim ),백일영 ( Il Young Paik ),서상훈 ( Sang Hoon Suh ),김지수 ( Ji Soo Kim ) 연세대학교 체육연구소 2014 체육연구논문집 Vol.21 No.1

본 연구의 목적은 폐경후 복부비만 여성들을 대상으로 8주간의 유·무산소 복합운동을 실시하여 혈청 RBP4, Estradiol(E2)의 농도 변화와 인슐린저항성과 대사증후군 진단지표에 미치는 영향을 관찰하고 각 검사 변인들의 상호 관련성을 분석함으로써 복합운동의 효과를 과학적으로 규명하고 폐경후 신체적, 심리적, 내분비에 많은 변화를 겪는 중년여성의 운동처방 및 건강관리지침의 기초 자료와 대사성 질환에 유용한 정보를 제공하는데 있다. 본 연구의 대상은 다른 의학적 질환을 동반하지 않은 폐경을 한지 3년 이상이 된 만 50세 - 60세의 복부비만 중년여성 중 대사증후군 진단지표 중 3가지 이상 충족하고 규칙적이고 체계적인 복합운동 프로그램에 참여한 경험이 없으며 8주간에 복합운동 프로그램과 연구를 위한 모든 검사에 자발적 참여를 허락한 여성으로 최종 피험자는 Control Group 10명 Exercise Group 12명으로 총 22명이다. 복합운동 프로그램은 준비운동(15분), 유산소운동(20분), 밴드운동(30분), 정리운동(10분)을 포함하여 총 75분 동안 실시되었으며 Exercise Group은 복합운동 프로그램에 8주간 주 4회 참여하였다. 본 연구의 과학적 효과를 입증하기 위해 본실험인 8주간의 복합 운동 프로그램 전·후에 모든 피험자들을 대상으로 사전·사후 검사를 실시하였으며 사전·사후 검사는 기본 검사를 포함하며 모든 피험자의 혈액 채취를 통해 이루어졌다. 본 연구를 실시한 결과, 복합운동(aerobic exercise, elastic band exercise)후Exercise group의 Weight, WC, WHR, BMI, TBF가 유의하게 감소한 반면 운동을 실시하지 않은 Control group에서는 사후 유의하게 증가하였다. 또한 복합운동 전·후 두 그룹간 각 변인의 차이는 사전에는 차이가 나타나지 않았으나 사후에 WC, WHR에서 유의한 차이가 나타났다. 또한 복합 운동 후 Exercise group의 RBP4와 HOMA-IR이 유의하게 감소하였으며 E2는 유의하게 증가하였다. 운동을 실시하지 않은 Control group에서는 LDL-C와 TG가 유의하게 증가했다. Exercise group에서 복합운동 후에 WC는 WHR, BMI, TBF와 각각 양의 상관관계가 나타났으며 WHR은 TBF, RBP4와 양의 상관관계가 나타났다. RBP4는 WHR, FPG, HOMA-IR과 각각 양의 상관관계가 있는 것으로 나타났으며 HOMA-IR은 RBP4, FPI, TBF와 양의 상관관계가 있는 것으로 나타났다. 이상의 연구결과를 종합하여 볼 때, 복합운동은 폐경 후 복부비만 중년여성에게 적용되는 적절한 운동프로그램이라 판단된다. 특히 본 연구를 통해 폐경 후 중년 여성의 복부비만과 그와 관련된 대사질환의 대표적 요소 및 변인들이 복합운동을 통해 개선되었음을 알 수 있다. 따라서 본 연구에서 실시된 복합운동은 폐경 후 중년 여성의 복부비만과 관련한 대사적질환 발생의 예방 및 치료를 위한 하나의 방법 및 요소라 사료된다. 앞으로 폐경 후 신체적·대사적 급격한 변화를 겪어 만성질환의 위험에 노출되기 쉬운 중년 여성을 위한 전문적이고 다양한 복합운동프로그램의 개발과 더불어 이에 관한 중·장기적인 연구가 필요할 것으로 생각되어진다. The purpose of this study is to provide the basic data for the health care guideline and the exercise prescription of postmenopausal women who suffer the various changes of their body, their mind and their internal secretion by observing the effects of 8 weeks combined exercise of aerobic/anaerobic exercises on the change of concentration of serum RBP4, Estradiol (E2) and HOMA-IR in postmenopausal women with Metabolic syndrome and abdominal obesity and analyzing the mutual relevances of each variable. The target of this study is the postmenopausal women in 50s - 60s, who have over 3 years menopause and abdominal obesity without any other medical diseases, and who suffice more than 3 items in the metabolic syndrome diagnosis index, have never attended any regular systematic combined exercise program and permit the voluntary participation in all the tests for the 8 weeks combined program and this study. The final subjects are total 22 women who are 10 from Control Group and 12 from Exercise Group. The programme of combined exercise was performed in total 75 minutes including 15 minutes warm up, 20 minutes aerobic exercise, 30 minutes elastic band exercise and 10 minutes warm down. Exercise group attended the combined program 4 times a week for 8 weeks. To prove the scientific effects of this study, the pretest and posttest were executed to all subjects before and after the 8 weeks combined exercise program. The pretest and posttest were performed with the method of obtaining blood sample including the basic tests. As the result of this study, the weight, WC, WHR, BMI, TBF of exercise group were attentively decreased after the combined exercise(aerobic exercise, elastic band exercise). On the other hand the weight, WC, WHR, BMI, TBF of control group were attentively increased. The variables of these two groups were not much different before the exercise, but WC and WHR of the two groups were significantly different after the exercise. RBP4 and HOMA-IR of exercise group were attentively decreased and E2 was increased after the exercise. LDL-C and TG of control group, who did not attend any exercise, were attentively increased. In the exercise group, WC showed the relativeness with each amount of WHR, BMI and TBF, and WHR showed the relativeness with each amount of TBF and RBP4 after the exercise. RBP4 showed the relativeness with each amount of WHR, FPG and HOMA-IR, HOMA-IR showed the relativeness with the amount of RBP4, FPI and TBF. To sum up the results of this study, we conclude that the combined exercise is the proper exercise program for the postmenopausal women with abdominal obesity. Above all, we could find out through this study that the main elements and variables of metabolic diseases related to the abdominal obesity in postmenopausal women was improved from the combined exercise. Therefore, we consider that the combined exercise executed in this study is one of methods and elements for preventing and curing the metabolic diseases related to the abdominal obesity in postmenopausal women. In addition, it is necessary to develop the professional and various exercises for the postmenopausal women who could be easily revealed the chronic disease from the radical changes of their body and their metabolic system after menopause as well as to do more the medium and long term research on this topic.

8주 유산소 운동이 연령대별 비만 여성의 안정 시 대사량에 미치는 영향

김대은(Kim, Dae-Eun),백일영(Paik, Il-Young),류재훈(Ryu, Jae-Hoon),이태형(Lee, Tae-Hyung),최경수(Choi, Kyung-Su) 한국사회체육학회 2021 한국사회체육학회지 Vol.- No.83

Purpose: The purpose of this study is to investigate the effect of eight weeks of regular aerobic exercise on body composition and resting metabolic rate in obese women in their 20’s & 30’s and obese women in their 50’s & 60’s who have entered menopause. Method: In this study, the tested subjects were obese women residing in the city of S with a BMI of 25 or higher, or a body fat percentage of 32% or higher. They were separated into two age groups: women in their 20’s and 30’s (E1), and women in their 50’s and 60’s (E2). 16 subjects were selected with 8 subjects in exercise group 1 (E1) and 8 subjects in exercise group 2 (E2). The 8-week aerobic training consisted of moderate-intensity exercise at 55-65% THR. Exercise during weeks 1-4 were performed at 55-60% intensity, and weeks 5-8 were performed at 60-65% intensity. Descriptive statistics (Mean ± Standard Error) of all dependent variables were calculated using SPSS/PC+Ver. 21.0K program and the corresponding sample t-test were conducted to determine the differences in RMR, body composition, maximal oxygen uptake, and lipid profile before & after aerobic exercise. The statistical significance level was set as α=.05. Results: There were significant differences in weight and BMI before & after training in the E1 group and E2 group before & after training (p<.001). There were significant differences in body fat percentage and total fat before & after training (p<.01) in both E1 and E2 groups. There were significant differences in maximal oxygen uptake for the E1 group (p<.01) and the E2 group (p<.001) before & after training, but only the E2 group resulted in significant differences in resting metabolic rate (p<0.01). Examining changes in TC, significant differences were found before & after training in both the E1 group (p<.01) and the E2 group (p<.05). No significant differences in levels of TG, LDL-C, and HDL-C were observed in either group. Conclusion: Eight weeks of regular aerobic exercise result in positively improved treatment of obesity in both age groups. Both groups show decreases in body weight, BMI, body fat percentage, lean mass, and TC, as well as increases in resting metabolism rates and maximal oxygen uptake. It is observed that 8 weeks of aerobic training resulted in a variety of positive physiological changes in women with obesity.

슬관절 반월상 연골 봉합술의 임상적 연구

빈성일(Seong-Il Bin),백대규(Dae-Kyu Paik),한영길(Young-Kil Han) 대한정형외과학회 2000 대한정형외과학회지 Vol.35 No.2

경남 진주시 부근의 백악기 하산동층에 발달한 공룡화석층

백인성(In Sung PAIK),이용일(Yong Il LEE),이영엽(Young Up LEE),정대교(Dae Kyo CHEONG),김수진(Soo Jin KIM) 한국고생물학회 1998 고생물학회지 Vol.14 No.1

Dinosaur eggs in South Korea : occurrence and palaeobiology

Min Huh,In Sung Paik,June Park,Koo Geun Hwang,Yong Il Lee,Jong Deock Lim,Kye Hun Park,Young Up Lee,Daekyo Cheong,Seong Young Yang,Ki Hyun Moon,Dae Gil Lee 대한지질학회 2006 대한지질학회 학술대회 Vol.2006 No.