결정 성장 방법에서 황산 농도가 황산 칼슘 결정 형태 및 법랑질과 복합 레진의 결합 강도에 미치는 영향

은희춘,구기갑,임호남 대한치과기재학회 1999 대한치과재료학회지 Vol.26 No.1

The calcium sulfate dihydrate(gypsum) crystal morphology on enamel surface treated by sulfuric acid aqueous solution (from 0.1M to 1.0M) was observed by scanning electron microscope. The shear bond strength between enamel and composite resin was measured by universal testing machine. From the experimental results, the conclusions of this study were; (1) The shear bond strength between enamel and composite resin was maximum at 0.1M sulfuric acid. The shear bond strength was decreased to 0.3M, hardly bonded from 0.4M to 0.6M, and increased from 0.7M as increasing sulfuric acid concentration. (2) The crystals was disordered as increasing sulfuric acid concentration. (3) The crystals formed by sulfuric acid aqueous solution were not firmly bonded on enamel surface because only crystal nuclei were attached on enamel, so fracture was occurred between enamel and crystal interface.

염증성 근섬유모세포종의 증례보고

은상아,박혁,차인호,김현실,정호걸,김기덕,박창서 대한구강악안면방사선학회 2006 Imaging Science in Dentistry Vol.36 No.3

The inflammatory myofibroblastic tumor (inflammatory pseudotumor) is a rarely occurring soft tissue lesion of unknown etiology. It can be of any location, but commonly it is found in lungs. It has been considered as a nonneoplastic reactive inflammatory lesion, but nowadays, confusion and dispute about its character is increasing due to its high recurrence rate and metastasis. We present a patient who had been diagnosed with an inflammatory pseudotumor in the right maxilla area, 1 year before visiting our hospital. After that, her pain and swelling did not resolved and she visit our hospital. On radiographic examination, aggressively infiltrative growth of the lesion with destruction of adjacent bony structure was noted. We found unusual aggressiveness of the inflammatory myofibroblastic tumor of the head and neck region. Because the typical behavior of the inflammatory myofibroblastic tumor is not defined yet, we recommend the surgical excision of the lesion and close follow-up.

갑상선 질환에서의 부여포세포 표현 양상

기근홍,이학봉,신은택 조선대학교 부설 의학연구소 1998 The Medical Journal of Chosun University Vol.23 No.2

The parafollicular C cell is a neuroendocrine cells in the thyroid gland. It secrete the calcitonin and regulate the serum level of calcium. The materials for this study consisted of 20 cases of adenomatous goiter 10 chronic lymphocytic thyroiditis, 5 Hashimoto's thyroiditis, 10 follicular adenoma, 20 papillary carcinoma, and 5 follicular carcinoma that resected for definite treatment of thyroid disease at Chosun University Hospital from January, 1995 to December, 1998. All cases were performed of immunohistochemical stain for antimouse monoclonal calcitonin, chromogranin A and neuron-specific enolase (NSE) antibodies. The result obtained as follows. Immunohistochemically, the positive cells for calcitonin, chromogranin A and calcitonin were increased and intensely stained in the chronic lymphocytic thyroiditis and Hashimoto's thyroiditis. In the follicular adenoma, papillary carcinoma and follicular carcinoma, the C cells were increased around the tumor cell nests. But, the tumor cells showed negative staining. In conclusion, the calcitonin-producing neuroendocrine cells were showed in most thyroid diseases and were increased in inflammatory diseases. This finding suggest that the neuroendocrine cells act as protection to injurious agents or neoplastic transformation.

이황화탄소 폭로가 혈압과 콜레스테롤치에 미치는 영향

洪起天,李恩一,金光鍾 고려대학교 의과대학 1994 고려대 의대 잡지 Vol.31 No.3

To study the effects of exposure to carbon disulfide on blood pressure and serum cholesterol level, we gathered the informations from file of the periodic health examination for occupational disease, the periodic health examination for general disease and medical records in, Wonjin factory clinic. The study subjects were 266 workers who had worked in spinning department as exposure group, and 207 male office workers and 59 female office workers as non-exposure group. The results are as follows; 1. The slope coefficients of systolic blood pressure(as dependent variable) and age and exposure duration(as independent variable) were 0.013 and 0.066 respectively in exposure group. And the slope coefficients of diastolic blood pressure(as dependent variable) and age and expoure duration(as independent variable) mere 0.010 and 0.051 respectively in expoure group. 2. The slope coefficients of systolic blood pressure(as dependent variable) and age and tenure duration(as independent variable) were 0.019 and 0.009 respectively in male unexposure group, and were 0.032 and 0.018 respectively in female unexposure group. And the slope coefficients of diastolic blood pressure(as dependent variable) and age and tenure duration(as independent variable) were 0.016 and 0.009 respectively in male unexposure group, and were 0.019 and 0.033 respectively in female unexposure group. 3. The slope coefficient of exposure duration was greater than that of age in exposure group and that of age was greater than that of tenure duration in male unexposure group. 4.There was no significant difference of blood pressure between the exposure and non-exposure group. 5.The slope coefficients of Serum cholesterol(as dependent variable) and age and exposure duration(as independent variable) were 0.03 and 0.035 respectively in exposure group. The slope coefficients of serum cholesterol(as dependent variable) and age and tenure duration(as independent variable) were 0.102 and -0.012 respectively in male unexposure group. And the slope coefficients was very low in female unexposure group. 6. The slope coefficient of exposure duration was similar to that of age in exposure group, and only age was positively related to serum cholesterol in male unexposure group.

인공위성에 의한 정밀 측위 시스템 : GPS를 중심으로

백은기 서울市立大學校 1991 論文集 Vol.25 No.-

태변흡인증후군의 병태생리와 치료

박상기,김은영 朝鮮大學校 附設 醫學硏究所 2009 The Medical Journal of Chosun University Vol.33 No.S

Meconium aspiration syndrome (MAS) is a disease of the term and near-term infant that is associated with considerable respiratory morbidity. MAS remains one of the most common but challenging conditions for obstetricians and pediatricians. Understanding of the syndrome's complicated pathophysiology will help determine the appropriate treatment strategy, including the use of continuous positive airway pressure (CPAP), conventional mechanical ventilation and other therapies. We review the pathophysiology and treatment of MAS including mechanisms of meconium passage, clinical manifestations and outcome.

부당경량아에서 발생하는 대사 장애의 기전

김은영,박상기 朝鮮大學校 附設 醫學硏究所 2009 The Medical Journal of Chosun University Vol.33 No.S

영아 천식의 임상적 고찰 : Asthma prospective score에 의한 Based on Asthma Prospective Score

양은석,노영일,문경래,박영봉,박상기,변주남 조선대학교 부설 의학연구소 1999 The Medical Journal of Chosun University Vol.24 No.1

A Clinical study was made on 40 patients for infantile asthma less than 2 years old who had been admitted to the Department of Pediatrics of Chosun University Hospital from January 1997 to December 1998. We evaluated family history of allergic diseases, clinical features, serum IgE level, eosinophilia, chest radiologic findings and response to bronchodilator. The results obtained were as follows ; 1) The male to female ratio of patients studied was 4 : 1. 2) Eighteen of the 40 patients (45.0%) had a family history of allergic diseases, of which 10 patients had maternal allergic diseases. 3) Atopic dermatitis was the most common disease (37.5%) among the associated allergic diseases. 4) Thirty two of the 40 patients (80.0%) showed high serum total 19E levels. 5) Only 5 of the 20 patients who were examined by MAST showed positive reaction. 6) The frequency of chest radiologic findings observed in these patients was as follows ; hyperinflation (52.5%), increased bronchovascular marking(30.0%), no pathologic findings(25.0%), and pneumonic infiltration(25.0%). 7) In response to bronchodilator 28 cases(70.0%) were effective. 8) When we divided the 40 patients into two groups by the diagnostic criteria of Asthma prospective score (AP score), 30 patients(75.0%) were included in a compatible group. On the basis of AP score, family history of major or minor allergic dieases and the responsiveness to bronchodilator were important factors for the diagnosis of asthma.

Ebb and Flood System을 이용한 팔레높시스 양액 재배에서 배양액 농도에 따른 묘 생육 및 양분흡수 패턴

한은주,최영일,백기엽 충북대학교 첨단원예기술개발연구센터 1999 연구보고서 Vol.4 No.-

신생아 위자연천공 2례

김은영,정명숙,박상기,김정용 朝鮮大學校 附設 醫學硏究所 1995 The Medical Journal of Chosun University Vol.20 No.2

Gastric perforation is a rare abdominal catastrophe which associated with high mortality in newborn infant. Mostly the causes are not known but those are asphyxia, congenital muscle defect, sepsis, gastric tube insertion, trauma, ulcer and intestinal obstruction, etc. It usually occurs within the first week of life. Roentgenograms of the abdomen are most helpful in making a positive diagnosis and surgical repair is the treatment of choice. We had two cases of spontaneous gastric rupture in neonate. One had perforation on the greater curvature of the fundus and the other on the anterior wall of body. Failure to feed and abdominal distension with radiographic demonstration of pneumoperitoneum were seen in them. Two cases underwent surgical repairs. So one was survived, but the other died in the early postoperative period.