방사선의 선량변화가 수종의 정상세포와 종양세포주의 세포활성도와 apoptosis 유발에 미치는 영향

박인우,이삼선,허민석,최순철,Park In-Woo,Lee Sam-Sun,Heo Min-Suk,Choi Soon-Chul 대한영상치의학회 1999 Imaging Science in Dentistry Vol.29 No.2

Purpose : The study was aimed to detect the differences in the cell viability and the apoptosis induction after irradiation on normal and tumorigenic cells. Materials and Methods : The study. that was generated for two human normal cells(RHEK, HGF-l) and two human tumor cells(KB. HT-1080). was tested using MTT assay at 1 day and 3 day after irradiation and TUNEL assay under confocal laser scanning microscope at 1 day after irradiation. Single irradiation of 0.5. 1, 2. 4. and 8Gy were applied to the cells. The two fractions of 1. 2. 4. and 8Gy were separated with a 4-hour time interval. The irradiation was done with 5.38Gy/min dose rate using Cs-137 irradiator at room temperature. Results and Conclusions : 1. In 3-day group. the cell viability of HGF-1 cell was significantly decreased at 2. 4 and 8Gy irradiation, the cell viability of KB cell was significantly decreased at 8Gy irradiation and the cell viability of HT-I080 cell was significantly decreased at 4 and 8Gy irradiation. 2. There was significant difference between RHEK and KB cell line in the cell viability of 3-day group at 8Gy irradiation. There was significant difference between RHEK and HGF-1 cell line in the cell viability of 3-day group at 4 and 8Gy irradiation. 3. There was a significantly decreased cell viability in 3-day group than those in 1-day group at 2. 4 and 8Gy on HGF-1 cell. at 4 and 8Gy on HT-I080 cell. at 8Gy on KB cell. 4. We could detect DNA fragmented cells only on KB cell. Number of apoptotic cells of KB cell was significantly increased at 4 and 8Gy irradiation. However, there was no correlation between cell viability and apoptosis. 5. On all 4 cell lines, there were no differences between single and split irradiation method in cell viability and apoptosis.

이슈 토론 - 시간강사관련 고등교육법 개정과 대학교육

박인우,Park, In-U 한국대학교육협의회 2012 大學敎育 Vol.177 No.-

자금정의 아토피피부염 치료 효과에 대한 환자군 연구

박인우,김희연,천진홍,사은호,사복석,김기봉,Park, In Woo,Kim, Hee Yun,Cheon, Jin Hong,Shih, Yin-hao,Sah, Bok Seok,Kim, Ki Bong 대한한방소아과학회 2018 대한한방소아과학회지 Vol.32 No.1

Objectives The purpose of this study is to analyze the clinical data of atopic dermatitis patients and to report the therapeutic effect of Jageum-Jung. Methods We conducted a retrospective study on the effects of treatment on atopic dermatitis patients who took Jageum-Jung from August 1, 2017 to December 20, 2017. The patients visited three times during the treatment period. The SCORAD Index score was measured and analyzed. Results Atopic dermatitis patients were 2 adults and 5 children. Both 2 adults were male (100%). Among the children, 1 child was a male (20%) and 4 children were females (80%). For adults, average age was 29.5 years, average weight was 72.75 kg, average height was 1.76 m and average BMI was $23.49kg/m^2$. For children, average age was 6.2 years, average weight was 23.92 kg, average height was 1.2 m and average BMI was $16.08kg/m^2$. The atopic dermatitis patients' average SCORAD Index score was 18.04 at first visit, 11.46 at second visit, and 7.64 at third visit. The scores lowered significantly after every visit. Conclusions The SCORAD Index in atopic dermatitis patients who took Jageum-Jung significantly decreased and it is expected that Jageum-Jung will be clinically effective in the treatment of atopic dermatitis.

스마트폰에서 Smishing 해킹 공격과 침해사고 보안 연구

박인우,박대우,Park, In-Woo,Park, Dea-Woo 한국정보통신학회 2013 한국정보통신학회논문지 Vol.17 No.11

2013년도 들어 스마트폰을 이용한 스미싱(Smishing) 해킹 공격으로 인하여 피해가 급증하고 있다. 스미싱 해킹공격과 연계된 직접적인 금전적 피해와 개인정보 탈취가 야기되고 있다. 스마트폰에서 스미싱 해킹 공격과 연계되어 안전결제 시스템(ISP)과 인터넷 결제서비스로 이어지는 금전적인 피해가 발생하고 있다. 본 논문에서는 스미싱 해킹 공격과 침해사고를 실제 사례를 실험실에서 연구분석 한다. 스미싱 해킹 공격의 기술적인 원리와 실제적인 사례 분석을 하고, 스미싱을 이용한 안전결제 시스템의 피해를 예방하는 보안 방법을 강구한다. 본 연구를 통해 스마트폰을 통해 보다 안전하고 편리하게 온라인 결제를 할 수 있도록 하는 연구가 될 것이다. Damage is increasing by (Smishing) hacking attack Smishing you use a smart phone after entering 2013. Takeover of personal information and direct financial damage in collaboration with graphics sewing machine hacking attack has occurred. Monetary damage that leads to Internet payment service (ISP) and secure payment system in conjunction with graphics sewing machine hacking attack on a smartphone has occurred. In this paper, I will study analysis in the laboratory examples of actual infringement vinegar sewing machine hacking attack. It is a major power security measures to prevent damage to the secure payment system that a case analysis and practical principle technical nest sewing machine hacking attack, using Smishing. In this paper, I will be to research to be able to through a smart phone, to the online payment safer and more convenient.

악안면부 총상 환자의 전산화단층사진상의 연구

박인우,Park In-Woo 대한영상치의학회 1996 Imaging Science in Dentistry Vol.26 No.2

The purpose of this study was to evaluate the clinical and computed tomographic features of 7 cases of maxillofacial gunshot injuries in the suicidal patients visited the emergency room, Capital Armed Forces General Hospital. The obtained results were as follows : 1. The gunshot wounds were directed from submental area to dorsum of nose(3 cases), frontal area(1 case), orbit(1 case), infraorbital area (1 case), and lateral to nasal wing(l case). The shape of inlet in gunshot wounds were round (diameter: l-3cm) and that of outlet were oval shape(size : inlet<outlet). 2. The bullet fragment wasn't found in 2 cases, but in the other 5 cases, the bullet fragments were showed in facial area. 3. All cases showed the fracture on anterior mandible (5 cases : comminuted fracture), and 1 case showed the comminuted fracture on mandibular body. The maxilla were comminutedly fractured in all cases (5 cases: anterior maxilla, 2 cases: maxillary body). In all cases, the fracture of maxillary teeth were showed and in 3 cases the fracture of mandibler teeth were showed. 4. The comminuted fracture on nasal bone and fracture on nasal septum occurred in 6 cases. 5. The cases of injuries on paranasal sinus were 5 cases of fracture on maxillary sinus, 4 cases of fracture on ethmoidal sinus, 2 cases of fracture on frontal sinus. This every fractured paranasal sinus showed air-fluid level or non-aeration state. 6. Obstruction of supralaryngeal airway occurred in 6 cases.

공리적 설계를 활용한 고객만족형 설계VE 프로세스 개발

박인우,조규만,현창택,홍태훈,Park, In-Woo,Cho, Kyu-Man,Hyun, Chang-Taek,Hong, Tae-Hoon 한국건설관리학회 2009 건설관리 : 한국건설관리학회 학회지 Vol.4 No.2

국내 건설업체들은 비용절감과 성능향상을 통해 고객의 요구를 반영하고자하는 노력의 일환으로 설계단계의 가치공학(Value Engineering, 이하 VE)을 적극적으로 검토하고 있지만, 실제 VE 활동에서는 고객의 요구가 충분히 반영되지 않고 있으며, 고객의 요구를 측정하는 준비단계에서 기능분석, 아이디어 창출단계에 걸친 순차적인 진행 또한 미비한 실정이다. 본 연구에서는 고객의 요구기능이 VE 수행절차에 체계적으로 반영될 수 있도록, 공리적 설계이론(Axiomatic Design Theory)을 설계VE 프로세스에 도입하여 기존의 설계VE 프로세스를 보완하는 고객만족형 설계VE 프로세스를 제안하고자 한다. 고객만족형 설계VE 프로세스는 설계VE와 공리적 설계의 프로세스 및 특성상의 유사성을 바탕으로 두 이론의 연계방안을 정리하고, 기존의 설계VE 프로세스에 공리적 설계 프로세스를 추가.보완하는 형태로 완성한다. 이때 프로세스의 초기단계인 고객의 요구를 측정하고 정리하는 과정에서, 거주 후 평가(Post-occupancy Evaluation)를 활용하는 방안을 제시한다. 설계VE에 거주 후 평가를 활용하기 위해 평가 기준 및 방법을 설정하고, 이를 바탕으로 고객요구 측정 절차를 수립하여 그 절차에 따라 설문을 작성한다. 본 연구의 결과는 지금까지 국내 설계VE 활동에서 미진하였던 고객요구를 적극 반영하고, 기능과 아이디어의 관계에서 기능-아이디어-기능의 지그재그 창출 방법을 통해 기능-아이디어간의 연계를 명확하게 하여, 체계적이고 효율적인 VE활동을 기대할 수 있다. Value Engineering(VE) at design phase(so-called Design-VE) becomes quite a compulsory solution for better customer satisfaction, cost reduction, higher product performance, and, eventually, insured predominance in the competition. Unlike intended, however, the customer requirement on Design-VE has not been fully reflected in reality. Furthermore, the Design-VE occasionally does not progress in regular sequence; Preparation for measuring customer requirement - Function analysis - Idea creation. Therefore, this study suggests Axiomatic Design Theory to be adopted in Design-VE process expecting that the functions required by the customer could systematically reflected in VE process. Post-occupancy Evaluation(POE) is also represented as a method to measure and arrange the customer requirements. The customer satisfaction Design-VE process creates ideas defining functions in more detailed, to reflect the concrete user requirement. This approach helps function analysis and idea creation linked closely because function and idea are developed zigzag (i.e. function - idea - function...) in being decomposed into level down. The application of the process proposed by this study will be helpful to improve the customer requirement measurement and clarify a link between functions and ideas.

상악골에 발생한 원발성 골내암종

박인우,최순철,이영호,박태원,유동수,Park In-Woo,Choi Soon-Chul,Lee Young-Ho,Park Tae-Won,You Dong-Soo 대한영상치의학회 1997 Imaging Science in Dentistry Vol.27 No.2

The primary intra-osseous carcinoma (PIOC) is a very rare lesion. PIOC is an odontogenic carcinoma defined as a squamous cell carcinoma arisinig within a jaw having no initial connection with the oral mucosa, and presumably developing from residues of the odontogenic epithelium. The authors diagnosed a 51-year-old female as primary intra-osseous carcinoma after undergoing clinical, radiological and histological examinations. The characteristics were as followed : 1. The patient complained of gingival bleeding on the premolar area in the left maxilla 2. The conventional radiograms showed a relatively well-defined unilocular radiolucent lesion from the mesial aspect of the upper left canine to the mesial aspect of the upper left 1st molar. The 2nd premolar was separated from the 1st molar and the floor of the maxillary sinus was elevated by the lesion. There was a external root resorption of the upper left canine, the 1st premolar, and the 2nd premolar. 3. On the computed tomograms, the osteolytic bony lesion expanded the cortical plate of the left maxilla and displaced the margin of the left maxillary sinus upwards. But the bony lesion was separated from the maxillary sinus by a bony septum. 4. Bone scintigram with /sup 99m/Tc demonstrated the increased uptake in the left maxilla. Sonograms in the neck area and chest P-A radiogram didn't show any abnormalities. 5. Histologically, the tumor islands infiltrating into the surrounding bone increased in alveolar pattern, composed of the malignant cells, and there was a necrosis in the center of the tumor islands.

초등학교 교실수업에서 e-러닝에 대한 교사, 학생, 학부모 인식

박인우 ( In Woo Park ),정한호 ( Han Ho Jeong ) 한국교육정보미디어학회(구 한국교육정보방송학회) 2006 교육정보미디어연구 Vol.12 No.3

본 연구의 목적은 지금까지 초등학교 교실수업에서 활용되는 e-러닝에 대한 교사, 학생, 학부모의 인식을 분석하여, e-러닝이 학교 현장에서 올바른 방향으로 활성화되는데 도움을 주는 것이다. 이를 위하여 초등학교 교사 300명, 학생 900명, 학부모 900명을 대상으로 설문을 실시하여 회수된 설문지 중 불성실한 답변을 제외한 교사용 203부, 학생용 852부, 학부모용 705등 총, 1,760부가 최종적인 결과분석에 활용되었다. 수집된 자료 분석을 토대로 각 집단 간의 인식 차이를 검증하기 위해 Kruskal-Wallis 검정, t-검증을 실시하였다. 본 연구를 통한 결론은 다음과 같다. 첫째, 교실수업 시간에 활용되는 e-러닝은 학생의 학습흥미를 증가시키며 학생이 학습내용에 쉽게 접근할 수 있도록 도와준다. 또한 사교육 기회가 상대적으로 적은 저소득층 학생들에게는 방과 후 학습기회를 제공해 준다. 둘째, e-러닝은 유용하고 학습활동 및 수업집중에 도움이 되며, 이의 일환으로 교육부 및 서울시 교육청에서 운영하는 에듀넷, 꿀맛닷컴도 효과적으로 운영되고 있다. 셋째, e-러닝을 활용한 수업 시 학생들이 학습에 보다 집중할 수 있도록 학습과 관련 없는 타 사이트 접속 방지 방안을 마련해야 하며 문제해결학습에서 e-러닝이 올바로 활용될 수 있도록 적합한 교수-학습방법을 강구할 필요가 있다. 넷째, 교사는 편리성으로 인해 비효과적인 e-러닝 자료를 활용하는 경향이 있으며 학생은 학습 및 과제해결을 위해 e-러닝 자료에 의존하는 경향이 높다. 또한 학생은 가정에서 컴퓨터를 교육용보다는 오락용으로 활용한다. 다섯째, 교육당국은 학교 교실에서 e-러닝이 올바로 활용되기 위한 실질적인 교사연수를 개설해야 하며 e-러닝이 올바로 정착되기 위한 교사 커뮤니티 활성화 방안을 마련해야 한다. The purpose of the study was to analyze the current status of two aspects, learning and materials of e-learning, perceived by different stakeholder groups at elementary schools. The stakeholders include teachers, students, and parents of students. In addition, the study aimed to identify the current status of e-learning use in elementary classroom. Three sets of questionnaires tailored to teacher, student, and parents of students were developed and administrated. The questionnaires were distributed to three hundreds teachers, nine hundreds students, and nine hundreds parents of students, selected from Seoul Metropolitan Office of Education. Among them, two hundreds three teachers, eight hundreds fifty two students, and seven hundreds five parents of students responded to the questionnaires. For analysis of difference between the groups, Kruskal-Wallis ant t-test were used. From this study, it was found that the perceptions of stakeholder groups on e-learning use at the elementary classroom, varied in both learning and material aspects of the e-learning. Stakeholder perceived e-learning positively for learning in classroom. Specifically e-learning was perceived to provide easiness of learning contents access, positive influence on learning, and learning opportunity for low income students, On the other hand, it was found that e-learning had a negative awareness about increase in the willingness to learn for oneself, apply a class-homepage for learning, retrenchment of private educational expenses, and lowering of interest in general learning method. Three groups showed statistically significant differences in most of the perceptions. Several suggestions were derived from the results. First, e-learning might influence positively upon learning aspect, including increased learning interesting, access to contents easily, learning opportunity for low income students. Second, considering materials aspects, e-learning could be utilized to assist in learning and concentration. However, negative perceptions were found, such as ineffectual efforts in problem solving, an inapt use, and access other site for play at class. Fourth, inefficient application with convenience than effectiveness, dependent on e-learning materials too much, and use home pc for game, Finally, it was suggested that teacher communities and education programs should be utilized for e-learning to be applied in elementary classroom instruction.

공공기관에서 제공하는 교육용 웹의 현장 적용 효과성 분석: 법의식 함양을 중심으로

박인우 ( Inn Woo Park ),정한호 ( Han Ho Jeong ) 한국교육정보미디어학회(구 한국교육정보방송학회) 2015 교육정보미디어연구 Vol.21 No.1

본 연구는 학교현장에서 이루어지는 법사랑 사이버랜드를 활용한 교육활동이 학생들의 법의식 함양에 효과가 있는지를 탐색하기 위한 목적으로 수행되었다. 본 연구는 전국 46개 초등학교에 재학 중인3,477명의 학생들(남 1776명, 여 1701명)을 대상으로 실시하였다. 또한 본 연구에서는 구조화된 법의식 설문지를 사용하였으며 학교현장에서 법사랑 사이버랜드를 활용하는 학생들로부터 자료를 수집하였다. 본 연구에서는 1) 법사랑 사이버랜드 사용 전후의 법의식 점수 차이, 2) 성별에 따른 차이, 3) 학년수준에 따른 차이를 분석하였다. 연구결과, 첫째, 법사랑 사이버랜드 활용 전후의 법의식에 차이가 나타났다. 예를 들어, 학생들의 법에 대한 긍정적인 인식은 높아졌으며 부정적인 인식은 불법의식을 제외하고 감소한 것으로 나타났다. 둘째, 학년에 따라 법사랑 사이버랜드 활용 효과에 차이가 있음을 파악할 수 있었다. 학년에 따른 법의식 평균 점수를 비교한 결과, 1, 2학년의 경우, 일부 영역에서 법사랑 사이버랜드 사용이 도리어 법의식의 저하를 유발한 것으로 나타났다. 셋째, 학생의 성별은 법사랑 사이버랜드 활용에 따른 교육적 효과에 유의미한 영향을 미치지 않은 것으로 나타났다. 비록 본연구가 학교현장에서의 웹의 교육적 활용이라는 준 실험설계를 기반으로 하고 있지만, 본 연구결과를 통해 법사랑 사이버랜드와 같은 교육용 웹의 효과적인 활용 가능성을 엿볼 수 있었다. 이 같은 연구결과를 토대로 학교현장에서 교육용 웹을 올바른 방향으로 실시하기 위한 방안을 제언하였다. The purpose of this study was to analyze the effects of the law-related education activities using the public educational web for fostering students` legal consciousness. Participants were selected among students of 46 elementary schools. The total number of participants was 3,477(male 1,776, female 1,701). Data from students were collected using structured questionnaires of legal consciousness. The current study was attempt to analyze 1)the difference of legal consciousness scores between before and after using ‘Law love cyber land’, 2)the effect of gender on before and after, 3)the effect of grade level. First, we found that differences in the perception of the law before and after using ‘Law love cyber land’. For example, positive perception of the law was increased and negative perception of the law was decreased, excluding illegal consciousness. Second, we could explore the difference of the using effect of ‘Law love cyber land’ depending on the grade. As comparison of results of the average score of legal consciousness for each grade, in grade 1st and 2nd, we found that the use of ‘Law love cyber land’ causes a decrease in legal consciousness. Third, the result from the current study showed that the effects of the law-related education activities using ‘Law love cyber land’ were not affected by gender. Although the current study was based on semi-experimental design for educational utilization of the web ‘Law love cyber land, we could find the potential of the web. This study produced additional practical implications.

동시적 온라인 토론에서 익명성과 도덕성이 발언에 미치는 영향

박인우 ( Inn Woo Park ),고은현 ( Eun Hyeon Koh ) 한국교육공학회 2001 교육공학연구 Vol.17 No.4