모바일뱅킹의 고객만족에 영향을 미치는 요인 연구

영창선 한국산업경영시스템학회 2008 한국산업경영시스템학회지 Vol.31 No.2

The purpose of this study is to find out the factors of customer satisfaction as the critical success factors of mobile banking. Based on previous exploratory work and a review of the literature of customer satisfaction, nine key factors are identified: perceived usefulness, perceived easy of use, perceived ubiquity, perceived safety, perceived tangibles, perceived reliability, perceived responsiveness, perceived assurance, and perceived empathy. A conceptual model is developed and hypotheses are empirically examined using multiple regression analysis. The result of this research are summarized as follows: First, perceived usefulness, perceived easy of use, perceived safety, and perceived empathy have significant influence on customer satisfaction. Second, customer satisfaction has significant influence on reuse intention and word-of-mouth intention.

방사성폐기물관리 현황과 동향

영창 정 한국원자력산업회의 1984 원자력산업 Vol.4 No.6

경기도 안산 지역 중·고등학생의 두통에 관한 연구

최병민(Byung Min choi),김영준(Young Jun Kim),은백린(Baik Lin Eun),박상희(Sang Hee Park),독고 영창(Young Chang Tockgo) 대한소아신경학회 1995 대한소아신경학회지 Vol.2 No.2

연구 배경 : 두통은 인간이 일상 생활에서 흔히 경험하는 증세 중의 하나이다. 최근 미국에서 실시된 역학 조사 결과 인구의 90%이상이 두통을 경험하였으며, 외래나 응급실로 내원한 환자의 1%이상이 단지 두통을 주소로 내원하는 것으로 나타나 두통은 의사들이 흔히 경험하는 증상 중의 하나이지만 그 감별 진단이 어려워 두통이야 말로 의사들의 두통거리의 하나이다. 우리나라 청소년들에 있어서도 두통은 흔한 증세 중의 하나이지만 아직도 이에 대한 체계적인 정보가 거의 없는 실정이다. 이에 저자들은 경기도 안산 지역 중·고등학생을 대상으로 두통에 관한 역학조사를 시행하였다. 방 법 : 경기도 안산 지역 중·고등학생 3575명(12-18세)을 대상으로 설문조사를 통해 편두통을 포함한 두통의유병율, 두통의 양상(빈도, 발현, 기간, 특징, 위치, 심한 정도), 발현 시기, 동반된 증상, 치료 유무, 심한 정도), 발현 시기, 동반된 증상, 치료 유무, 두통으로 인한 생활 장애, 그리고 가족력 등을 조사하였다. 결 과 : 1) 한번이라도 두통을 경험한 학생은 80.7%였고 남학생의 77.5%, 여학생의 83.7%로 여학생이 더 많았다. 지난 1년간의 두통 유병율과 최근 4주간의 두통 유병율은 각각 61.7%, 42.2%였고, 어학생에서 유병율이 높았으며, 연령이 증가함에 따라 유병율이 증가하였다. 2)두통 경험의 반도는 1달에 한번 이상 경험하는 학생이 44.1%, 일주일에 한번 이상에서 더 많았다. 매일 두통을 경험하는 학생은 23.7%였으며 모두 여학생에서 더 많았다. 매일 두통을 경험하는 학생은 1.9%였다. 3)두통의 지속 시간은 30분 이내가 44.0%로 가장 많았고 1시간 이상 지속되는 경우는 34.9%, 12시간 이상 지속되는 경우는 2.0%였다. 남녀별 두통 지속시간의 차이는 업었으나 나이가 증가함에 따라 두통의 지속 시간은 길었다. 두통을 주관적으로 자각하는 정도는 남녀 차이가 없었으나 나이가 증가함에 따라 두통의 정도가 심하였다. 두통으로 인해 무기력해지는 객관적인 지표를 보면 두통을 경험한 학생중 14.5%가 두통으로 인해 결석 혹은 지각이나 조퇴를 한 경험이 있었고 남학생에서 더 많았으나 연령에 따른 차이는 없었다. 4)두통으로 인해 한번이라도 병원을 방문하여 진찰이나 검사를 받은 경험이 있는 학생은 두통을 경험한 학생의 10.6%였고, 지난 1년 간 두통으로 인해 병원을 방문한 학생은 2.9%, 최근 4주간은 1.8%로 소수에 불과하였다. 보통 두통이 있을 때 77.1%가 약을 복용하지 않고 참고 견딘다고 하였으며 약물을 복용하는 학생은 22.9%였다. 약물을 복용하는 학생 중 57.3%가 자기 자신이 선택한 진통제를 복용하였고 약국에서 약사의 처방을 받은 학생은 36.6%, 병원에서 의사의 처방을 받은 학생은 1.4%에 불과하였다. 두통으로 약물을 복용하는 경우는 연령이 증가함에 따라 감소하는 경향이 있었다. 5)편두통의 증세를 보인 학생은 총 280명(7.8%)이었고 남학생의 6.1%, 여학생은 9.4%로 여학생이 더 많았다. 최근 4주간의 편두통 유병율은 6.1%였고 역시 여학생의 유병율이 높았으며 연령이 증가함에 따른 유병율의 차이는 없었다. 편두통의 증세를 보인 학생 중 복통이 있는 학생이 57.5%였으며 여학생에서 더 많았다. 오심 구토가 있는 학생은 58.6%, 박동성 두통은 37.1%, 일측성 두통은 61.8%, 잠을 자고 나면 회복되는 양상은 62.5%, 가족력이 있는 경우는 45.0%, 그리고 시각, 지각, 혹은 운동성 전구증상이 있는 학생은 59.6%였다. 결 론 : 저자들은 이번 조사를 통하여 청소년기의 많은 학생들이 두통을 경험하고 있으며 대개 나이가 듦에 따라 그리고 여자에서 그 비율이 높음을 알 수 있었다. 또한 상당수에서 편두통의 증세를 가지고 있는 것으로 조사되었으며 이외에도 두통에 관한 여러 가지 자료를 분석하여 보고하는 바이다. 이번 조사 자료를 바탕으로 청소년들의 두통에 대해 보다 많은 관심을 기울여야 할 것으로 사료되며 더욱 더 체계화 된 연구가 조사가 계속 되길 바란다. Background : Headache remains one of the most common medical complains in human life. In recent epidemiologic study. 80%-90% of Americans have headaches and of all visits to physicians' offices and emergency rooms, slightly more than 1% are primarily for headache. Although headache is a common medical complaints in adolescence in our country, there is little information about the prevalence and distribution of headache in high school students. Method : In cross-sectional study, 3575 middle and high school students(12-18 years old) in Ansan, Kyungki-do, Korea were investigated for prevalence of serious headaches(including migraine), characterizing of pain(frequency, onset, duration, character, location, severity), time of onset, associated symptoms, medical care utilization, associated disability due to headache, and relation to family history by questionnaire. Result : 1. A lifetime history of one or more headaches was reported by 80.7% of all students. 61.7% and 42.2% of students reported that their most recent headache occurred within the previous 1 years and the previous 4 weeks, respectively. Within each age group, female students reported a higher prevalence of headaches than male students for shorter and for longer intervals. 2. frequency of headaches which was one or more a month was reported by 44.1% of students. Frequency of headaches which was one or more a week was reported by 23.7% of students. 3. The proportion of students whose headache lasted 30 minutes or less was 44.0%. The proportions of students whose headache lasted 1 hour or more and 24 hours or more were 34.9% and 2.0%, respectively. Duration increased directly with increasing age in each male and female group. Mean estimated intensity of pain for the subject's most recent headache did not vary by sex, but increased with increasing age. School absence(used as an objective measure of disability) that resulted from a subject's headache was 14.5% of students. Reported disability was pronounced among the male students. 4. Among the students who reported one or more headaches. 89.4% had never consulted a physician for a headache-related problem but only 10.6% had consulted. 1.8% had consulted a physician within previous 4 weeks. The proportion of students who sought medication for headache is 22.9%. Only 38.0% of students who sought medication use for headache was prescribed medicine by physician and pharmacist. The proportion of medication use decreased with age. 5. Using the definition described previously herein for migraine, prevalence was 6.1% in males and 9.4% in females. 4 weeks prevalence was 6.1% of all students. Female students reported a higher prevalence of headaches than male students. Symptoms or associated findings of migraine were abdominal pain(57.5%). nausea or vomiting(58.6%). throbbing headache(37.1%). unilateral headache(61.8). relief following sleep(62.5%). positive family history(45.0%), and associated aura(59.6%). Conclusion : In a survey of middle and high school students in Korea. we found that many students had experienced headache. The prevalence of headache is higher in female students than male students and increased with increasing age of the student. More population based prevalence studies must be necessary to proper management of headache in adolescents.

수술용 장갑 사용자들의 고무 ( Latex ) 알레르기 유발에 관한 연구

최병민(Byoung Min Choi),김영국(Young Guk Kim),정지태(Ji Tae Choung),독고 영창(Young Chang Tockgo) 대한소아알레르기호흡기학회(구 대한소아알레르기 및 호흡기학회) 1994 소아알레르기 및 호흡기학회지 Vol.4 No.1

N/A Latex surgical gloves may cause contact urticaria and serious allergic reactions in sensitized persons. The purpose of this study was to assess the symptom prevalence of latex sensitivity in a large group of hospital personnel in Korea. In the present study, 206 hospital personnel(Doctors and Nurses) in Korea University Medical Center, Anam & Guro Hosp., answered the questionnaire about symptoms associated with latex glove wearing. The results were as follows; 1) Sixty six(32%) of the 206 answered the questionnaire reported at least one symptom when wearing gloves. Twenty three(34.8%) of the 66 personnel who had one symptom had itching and redness. Nineteen(28.8%) of the 66 had itching without redness or wheal when wearing gloves. Seventeen(25.8) had itching, redness and wheal(Table 1), 2) Except 19 who had itching without redness or wheal, the symptom prevalence of latex sensitivity to latex gloves was 22.8%. 3) Symptom prevalence was not significantly different in men and women. 4) Among the hospital personnel who had allergic disease, the symptom prevalence of latex sensitivity to latex gloves was significantly higher(45.3%) than in personnel without allergic disease. 5) The frequency of exposure to latex gloves did not influence the symptom prevalence. 6) Seven(14.9%) of the symptomatic personnel had sought medical advice, and 17 chose to wear cotton gloves or plastic gloves under the latex gloves. 7) All symptoms were local and no personnel reported systemic urticaria or anaphylaxis during surgery. As the above results, the symptom prevalence of latex sensitivity was 22.8%. To prevent further serious reactions to latex rubber, hospital personnel and patients with histories suggestive of rubber allergy should be evaluated about latex sensitivity before procedures involving substantial contact with latex. Laboratory investigations to identify such patients and necessary measures to prevent rubber contact during surgery in sensitized patients are presented.

구강 혹은 인두피부루의 동시재건을 위한 양면 대흉근피판술

임영창(Young Chang Lim),손은진(Eun Jin Son),신우철(Woo Chul Shin),김상철(Sang Cheol Kim),이욱진(Wook Jin Lee),최은창(Eun Chang Choi) 대한두경부종양학회 2003 대한두경부 종양학회지 Vol.19 No.1

본 증례에서 처럼 구강과 피부 또는 인두와 피부의 복합 결손은 내측 점막재건 및 피부의 외측부분을 함께 재건해야 하는데, 저자들이 사용한 진도서형의 양면 대흉근 피판이 아주 유용한 방법으로, 수술시간도 짧고 피판의 혈관경도 믿을 수 있어 대단히 안전한 피판으로 사료된다. Background and Objectives: Oro-and pharyngocutaneous fistula after irradiation can lead to extensive wound necrosis and fetal complication such as carotid rutpure. So, there is a need to clean and cover the wound rapidly in these compromised patients. Pectoralis major myocutaneous (PMMC) flap has been presented for reconstruction of complex defects in these irradiated patients. We applied the double paddle PMMC flap for the simultaneous reconstruction of above complex defects and evaluated the it's clinical efficacy. Material and Methods: Retrospective chart review of three cases of simultaneous head and neck reconstruction after irradiation with double paddle PMMC. All patients received prior radiotherpy before development of complications. The double paddle PMMC flap was used for mucosal lining of the oral cavity and epithelial lining of external skin in 2 cases, for mucosal lining of the pharynx and epithelial lining of external skin in 1 case. Results: Considerable complications such as major flap necrosis or fistula did not occur in any of the cases, and simultaneous reconstruction was achieved in all cases without reoperations. Conclusion: Many extended defects such as oro-and pharyngocutaneous fistula involving cover and lining about the head and neck after irradiation can be rehabilitated by the double paddle pectoralis major myocutaneous flap.

EO 가스 살균이 가능한 ABA 삼중 블록 공중합체 미립구 시스템

아영창(Young Chang Ah),최용두(Yong Doo Choi),변영로(Young Ro Byun) 한국약제학회 1999 한국약제학회 총회 및 학술대회 요지집 Vol.- No.29

N/A N/A

lonic Copolymer of Ethylene/Methacrylic acid 의 방사선 가교 효과

노영창,최용진,강필현 한국공업화학회 2000 한국공업화학회 연구논문 초록집 Vol.2000 No.1

N/A N/A

저밀도플리에 틸렌 / 올레핀 이오노머 블랜드에 대한 방사선 조사 효과

노영창,박성현,최용진 한국공업화학회 2000 한국공업화학회 연구논문 초록집 Vol.2000 No.1

N/A N/A

포스터 발표 : 저밀도플리에 틸렌 / 올레핀 이오노머 블랜드에 대한 방사선 조사 효과

노영창,박성현,최용진 한국공업화학회 2000 한국공업화학회 연구논문 초록집 Vol.2000 No.0

N/A N/A

치주염 환자 말초혈 임파구의 시험관내 반응

천영창,신형식 원광대학교 치의학연구소 1990 圓光齒醫學 Vol.1 No.1

This study was an investigation to determine the relationship between plaque and inflammation in periodontal disease on the basis of immune system, especially in vitro lymphocyte response. Peripheral blood monomuclear cells(MNC) from patient with advanced periodontitis were separated into T cells, B cells and monocytes. T cells were further fractionated into IgG positive(T_G)- and IgM positive(T_M) subpopulations by the surface markers. Each fractionated subpopulations were cultured in the presence of sonicated bacterial plaque antigen(BPA) or corresponding polyclonal activator, and assayed for proliferation responses and Ig-production. The result obtained 1. 41% of MNC made IGM(T_M) rosettes, 21% of MNC made IgG(T_G rosettes and B cell fraction is 12%. Seventy per cent of the cells from T cells made IgM(Fc) rosettes and 19% made IgG(Fc) rosettes. 2. T cells without monocytes was not stimulated to a significant degree by BPA compared to PHA. However, monocyte-reconstituted T_M cell culture significantly responsed to BPA. The respone of T_M cells to BPA was increased by reconstituted monocyte compared to PHA. 3. When B cells were activated with Staphylococcus aureus Cowan 1(SACH, no different proliferation of B cells was shown between normal person and patient by adding T_M T_G or monocyte. However, the proliferation of BPA-activated B cells from patient was lower than that of normal person. This decreased response to BPA was reversed by the addition of T_M cells, T_G cells or monocytes, but even reconstitution of B cells with T_G cells did not chang the proliferation of B cell from patient with periodontitis. 4. Ig was not detected in the supernatant of SAC induced B cell culture but Ig production of B cells activated was somewhat enhanced by the addition of T_M and monocytes. Ig-production of B cells activated with BPA was somewhat enhanced by the addition of T_M cells and monocytes into cultures, but was completely abolished by the supplement of T_G cells into B cell-cultures from patients. These results suggest that the suppression of the in vitro response of lymphocytes to BPA in the advanced stage of periodontal disease might be apparently antigen-specific and chiefly mediated by T_M cells and monocyte.