청소년의 스마트폰 중독과 우울 및 불안과의 관계

김경은,김필송,민주연,박수경,신서인,이지은,정해인,조호정,최정원,최정인 이화여자대학교 간호과학대학 2013 이화간호학회지 Vol.- No.47

Purpose: The purpose of this study was to investigate the relationships between the degree of smart phone addiction among adolescents and their depression and anxiety levels. Method: In this study, 379 high school students were selected using the convenient sampling method. The instruments used for this study were smart phone addiction measure, the CES-D (Center for Epidemiological Studies-Depression Scale), and the STAI (State-Trait Anxiety Inventory). Data were analyzed using the SPSS 20.0 program with descriptive statistics, t-test, ANOVA with Scheffe test, and Pearson’s correlation coefficient. Result: The mean score for smart phone addiction was 40.45±17.27, depression was 36.56±9.58, state anxiety was 44.00±9.61, and trait anxiety was 45.70±9.75. There were significant differences between the degree of smart phone addiction and the following variables: gender (t=-4.953, p<.001), hours of smart phone use per day (F=12.259, p<.001), types of frequently used features (F=3.485, p=.008), and satisfaction level for smart phone (F=5.18, p<.001). There were statistically significant relationships (p<.001) among degree of smart phone addiction, depression level, and state and trait anxiety levels. Conclusion: The results of this study suggested that there was a significant relationship between smart phone addiction and mental health, specifically, depression and anxiety among adolescents. Further research is needed to develop nursing strategies to provide care for adolescents who frequently utilize smart phones.

Poster Session:PS 1096 ; Gastroenterology (Gastrointestinal Tract) : A Case Report: Rectal Tonsil

( Peel Jung ),( Joung Boom Hong ),( Yuyi Choi ),( Sook Kyoung Oh ),( Dong Ku Kang ),( Hyung Wook Kim ) 대한내과학회 2014 대한내과학회 추계학술대회 Vol.2014 No.1

The rectal tonsil is a reactive proliferation of lymphoid tissue located in the rectum. This lesion is benign lymphoid hyperplasia, but must be prevent a misdiagnosis from the polypoid type of mucosa-associated lymphoid tissue (MALT) lymphomas. We report a case of rectal tonsil. Case Report : A 59-year-old woman admitted for suspicious tuberculous colitis. Tuberculin test was negative. Micobacterium tuberculosis interferon test on blood was positive. Colonoscopy showed ulcerous lesions in the ascending colon and cecum, and the ileocecal valve was totally destroyed with ulcer and pseudopolyp formation. Furthermore, a hard, solitary sessile mass (5 mm) was noted at 10 cm from the anal verge (fig 1); endoscopic ultrasound showed a 5 mm homogenous hypoechoic mass located in the submucosa and without defi nite lymph node enlargement (fig 2). We performed cap-endoscopic mucosal resection (C-EMR). Histopathologically, a dense lymphoid infi ltrate mainly located in the submucosa and extened to mucosa that was a disc of yellow white mucosal tissue, measuring 0. 8 x 0. 5 x 0. 5 cm in dimensions. The lesion was characterized by follicles with well-formed reactive germinal centers of different size; there were abundant macrophages inside the germinal follicles. Immunohistologic study demonstrated that typical lymphoid follicles and suggested follicular type of proliferation with B cells markers were positive for CD20+ (B cells), and intraepithelial lymphocytes were positive for CD3+ (T cells). These studies confi rmed a reactive lymphoid proliferation, and excluded lymphoma. The patient was a tuberculostatic therapy with isoniazid, rifampicin, pyrazinamid, and ethambutol for 6 month. After 3 month of tuberculostatic therapy and C-EMR, follow-up colonoscopy showed grossly normal healed mucosa in cecum, ascending colon and rectum.

Clinical and endoscopic characteristics of sessile serrated lesions with dysplasia/carcinoma

Peel Jung,김형욱,Su Bum Park,Dae Hwan Kang,Cheol Woong Choi,Su Jin Kim,Hyeong Seok Nam,Dae Gon Ryu,Dong Hoon Shin,Joo Young Na,Mi Sook Yun 대한내과학회 2023 The Korean Journal of Internal Medicine Vol.38 No.3

Background/Aims: Some sessile serrated lesions (SSLs) progress into dysplasia and colorectal cancer, however, the clinical and endoscopic characteristics of SSLs with dysplasia remain to be determined. In this study, we elucidated these characteristics in SSLs with dysplasia/carcinoma, compared with those of SSLs without dysplasia. Methods: We retrospectively collected the clinical, endoscopic, and pathological data of 254 SSLs from 216 patients endoscopically resected between January 2009 and December 2020. Results: All SSLs included 179 without dysplasia and 75 with dysplasia/carcinoma, including 55 with low-grade dysplasia, 10 with high-grade dysplasia, and 10 with submucosal cancer. In clinical characteristics, SSLs with dysplasia/carcinoma were significantly associated with advanced age, metabolic diseases, and high-risk adenomas. In endoscopic characteristics, SSLs with dysplasia/carcinoma were significantly associated with the distal colon, large size, polypoid morphology, surface-changes, no mucus cap, and narrow-band imaging international colorectal endoscopic classification (NICE) type 2/3. In the multivariate analysis, high-risk adenomas (odds ratio [OR], 2.98; p = 0.01), large size (OR, 1.18; p < 0.01), depression (OR, 11.74; p = 0.03), and NICE type 2/3 (OR, 14.97; p < 0.01) were significantly associated with SSLs with dysplasia/carcinoma. Conclusions: SSLs had a higher risk of dysplasia in the distal colon than in the proximal colon. SSLs with large size, depression, and adenomatous surface-patterns, as well as those in patients with high-risk adenomas, increased the risk of dysplasia/ carcinoma. This suggests that the clinical and endoscopic characteristics can aid in the diagnosis and management of SSLs with dysplasia/carcinoma.

연구논문 : 관광산업 종업원의 감성지능이 직무성과에 미치는 영향: 노동유연성과 조직몰입의 매개효과를 중심으로

송필수 ( Peel Soo Song ),박정우 ( Jung Woo Park ) 한국컨벤션학회 2014 MICE관광연구 Vol.14 No.1

In this study, researcher analyze the effect of emotional intelligence on job performance through labor flexibility and organizational commitment in tourist industry. For empirical study, 2474 data collected from employee who is working at tourist industry. Result of this study show us that emotional intelligence has positive effect on job performance. Furthermore, labor flexibility and organizational commitment has partial mediating effect between emotional intelligence and job performance. The study result implicate that emotional intelligence effect on variety job attitude and performance. Base on the study result, researcher suggest implication, limitation of study and future study direction.

관광 산업에서 E-서비스품질이 고객만족, 재이용의도 그리고 추천의도에 미치는 영향에 관한 연구

송필수(Peel Soo Song),박정우(Jung Woo Park) 한국관광연구학회 2014 관광연구저널 Vol.28 No.6

In this study, researcher analyze the effect of e-service quality on customer satisfaction, reuse intention and recommendation in Tourist industry. Customer satisfaction is treated as important factor because it can create additional value for firms. Customer satisfaction can effect on reuse intention and recommendation purpose , So there is a needs to find out the role of customer satisfaction in E-service sector. Furthermore, measuring E-service quality in previous study has too broad context to find out detail effect of E-service quality, so researcher develop detailed questionnaire items. For empirical study, 599 data collected from customer who using e-service about tourist industry. Result of this study show us trust/security and online perfection are important to customer. It means that trust/security and online perfection should be a major capability when organization consider that provide e-service to customer. Researcher suggest conclusion base on empirical analysis with implication of this study and limitation.

병원경영 전문가 양성을 위한 교과과정 개발

이정우(Jung Woo Lee),김영배(Young Bae Kim),박원필(Won Peel Park) 한국콘텐츠학회 2009 한국콘텐츠학회논문지 Vol.9 No.12

경영환경이 불확실해지고 경쟁이 치열해짐에 따라 전략경영이 중시되면서 전략수립과 실행을 담당하는 경영자의 역할이 더욱 중요해 지면서 경쟁이 심화된 병원산업도 경영전문가의 필요성이 강조되고 있다. 이 연구는 미래의 병원경영 전문가를 배출할 목표로 개설된 병원경영학과 교과과정의 시대적 적합성을 점검하고 교수, 학생 및 병원행정관리자의 만족도 측정을 통해 경쟁력 확보를 위해 보강해야 할 교과내용을 도출할 목적으로 수행되었다. 분석 결과, 일부 대학의 교과과정은 의료조직이 수행하고 있는 경영(실무)분야 또는 전산정보 업무와 관련된 과목의 개설비중이 매우 낮고 특정한 의료기술직 자격취득과 관련한 분야 또는 기타 영역에 치중되어 있어 산업현장이 요구하는 미래의 전문경영자를 배출하는데 한계를 지니고 있는 것으로 분석되었다. 이러한 문제점을 해결하는 방안의 하나로 전략수립과 기획, 의료분쟁ㆍ법무, 원무ㆍ보험, 회계 및 재무, 인사ㆍ노무 등의 분야로 나눠진 맞춤교육 또는 세부 전공제의 도입과 전략기획ㆍ경영, 마케팅, 의료분쟁 관리, 질 관리, 홍보ㆍ광고 등이 확충되어야 할 필수 교과목으로 조사되었다. The most important property for coming up to the global change and leading the knowledge-based future is human resources who has capacity to make a high value-added knowledge. For whom teaching knowledge and experiences related to the managing medical organization, it is very important and significant to make efforts to reflect educational goal, contents and teaching methods satisfying the new era's demands in the curriculum quickly. To develop a hospital management curriculum which is receptive to the change of medical industry and educational circumstances, analysing syllabuses of 19 departments of the year 2007 and surveying of professors, students and persons in charges of hospital administration are used. The syllabuses of 19 departments of 22 colleges were opened for this study. The medical record and other subjects take the most part of curriculums, while the number of subjects related to management or administrational practice are relatively small. The short of these subjects are obstacles to cultivate capacity and quality of students medical organizations look for. As the result of satisfaction measurement, hospital-management professors gave 3.41 points, students gave 3.29 points to the current curriculum and administrators who has been experienced to employ graduates majored in medical management gave 3.06 points.(5 points = full mark) Alternative ways are suggested to complement these problems as below: Strengthening and deepening study such subjects as strategy planning, management, marketing, managing medical disputes, quality improvement, PR, advertisement; changing informations and establishing cooperative programs between school and industry.

관광산업의 SNS 마케팅 활동이 브랜드 인지도, 브랜드 이미지, 기업 이미지 및 구매의도에 미치는 영향

박정우(Jung Woo Park),송필수(Peel Soo Song) 한국관광연구학회 2015 관광연구저널 Vol.29 No.7

In these days, people can share informations though internet without regard to time and place because of information technology and smart phone device has developed recently. In this circumstance, SNS(Social Network Service) that is based on communication of online users are used by through all of generations. SNS has spread to users who is using internet, 60.7% of Republic of Korea citizen uses this SNS. So there are new opportunity from SNS to use in marketing way. Corporations uses SNS to manage consumers and does marketing activity. So there is a need to figure out the effects of the spectrum related with SNS, especially in tourism industry, more specifically in food service business. In this study, try figuring out that SNS marketing activity effects on brand awareness, brand image, corporate image and purchase intention in food and beverage industry. 148 data are used for empirical analysis. Result of empirical study is that SNS marketing activity has positive effect on brand awareness, brand image and corporate image. And also, these 3 terms have positive effects on purchase intention. Result show us that SNS has a value which include benefit/cost related matter. Base on this rusult, researcher provide a managerial implications base on empirical study.

딥러닝 기법을 이용한 2차원 바코드 검출

박명숙 ( Myeong-suk Pak ),김상훈 ( Sang-hoon Kim ) 한국정보처리학회 2017 한국정보처리학회 학술대회논문집 Vol.24 No.1

2차원 바코드는 1차원 바코드의 데이터 용량의 한계를 극복하여 최근 많이 사용되고 있다. 복잡한 환경에서 바코드의 인식을 위해서는 바코드 영역 검출이 중요한 단계이다. 본 논문에서는 딥러닝 기법을 이용하여 QR코드 검출 시스템을 구현한다. 실험은 실생활에서 카메라로 촬영한 바코드 영상을 이용 한다.

제대혈의 적혈구 제거 방법에 관한 연구 : 제대혈 은행 설립을 위한 기초 연구 Basic Study for the Establishment of Cord Blood Bank

김효정,서철원,김상희,김상위,김성배,김강욱,조화정,민영주,박진희,김암,이인식,이필량,지현숙,서종진,강위창,이정신,김우건 대한조혈모세포이식학회 2000 대한조혈모세포이식학회지 Vol.5 No.1

배경:제대혈에서 적혈구를 제거하는 것은 제대혈 은행의 효율적인 운영 및 제대혈이식시 ABO 부적합 수혈, DMSO 독성 등의 부작용을 해결하기 위한 이상적인 방법이다. 저자들은 동일한 제대혈로 여러가지 적혈구 제거법을 동시에 시행하여, 이들에서 CD34양성 세포의 수득률 및 조혈세포 집락형성능을 비교하여 제대혈 은행 설립의 기반 기술을 확립하고자 하였다. 방법:제왕절개 직후 헤파린 처리된 용기에 제대혈을 채취하였다. 제대혈은 5개의 용기에 분산하여 실온에서 보관하였고 12시간 이내에 적혈구를 분리하였다. 적혈구 제거 방법으로 Ficoll 비중 분리법, gelatin 침전법, 적혈구 용혈법, starch 침전법을 각각의 제대혈에서 시행하였다. 전혈과 적혈구가 제거된 제대혈에서의 세포 생존율, 적혈구 제거율과 단핵구 및 CD34양성 세포의 수득률, 조혈세포 집락형성능을 비교 분석하였다. 결과:18례에서의 평균 제대혈 채취양은 81.3 mL(범위 42~128 mL)이었다. 서로 다른 적혈구 제거법들간에 세포 생존률과 적혈구 제거율은 차이가 없었다. 단핵구 수득률은 3% gelatin침전법(47.7±14.5%)이 다른 적혈구 제거법보다 유의하게 높았다. 3% gelatin침전법은 Ficoll비중 분리법과 Starch침전법에 비해 CD34 양성 세포수가 통계적으로 유의하게 높았다(36.1±5.4×10³/mL, 15.0±3.5×10³/mL, 20.7±4.2×10³/mL). 또한 CFC의 집락수도 3% gelatin침전법에서 Ficoll 비중 분리법과 적혈구 용혈법에 비해 우수한 결과를 보였다(52.0±7.1×10²/mL, 32.8±4.7×10²/mL, 36.8±5.7×10²/mL). 그러나 제대혈 전혈의 CD34 양성 세포수(65.7±11.2×10³/mL) 및 CFC의 집락수(117.8±15.8×10²/mL)를 적혈구 제거법을 이용한 실험군과 비교하였을 때 전혈군에서 높은 것을 알 수 있었다. 결론:3% gelatin 침전법은 다른 적혈구 제거법과 비교해 볼 때 더 우수한 단핵구, CD34 양성 세포 수득률 및 조혈세포 집락형성능을 보였다. 그러나 다른 보고들과는 달리 3% gelatin 침전법은 CD34양성 세포 및 CFC 집락수의 절대값이 제대혈 전혈과 비교하여 의미있게 낮았다. 이러한 결과는 시약의 종류와 실험방법의 차이에 기인하는 것으로 사료되며, 최상의 세포 수득률을 얻기 위하여 적혈구 분리 방법의 표준화를 위한 연구가 진행되어야 할 것으로 생각된다. Background:Efficient volume reduction is important to make a cost-effective umbilical cord blood (UCB) banking system. The aim of this study was to find a method of red cell depletion of UCB without major losses of the hematopoietic progenitor-CD34+ cells. Methods:Eighteen cord blood samples were collected in heparinized bottle immediately after Cesarean section. Five aliquots of each cord blood were stored at room temperature and processed within 12 hours. We used 4 different RBC depletion methods (Ficoll density gradient separation, gelatin sedimentation, red cell lysis, starch sedimentation) and compared the results of viability, RBC reduction rate, mononuclear cell (MNC) recovery rate, CD34+ cells and colony forming unit (CFC).Results: The mean collected cord blood volume was 81.3 mL (range 42~128 mL). There were no differences of viability and RBC reduction rate among groups. MNC recovery rate were significantly higher in gelatin group (47.7±14.5%) than other RBC depletion methods. Gelatin group had significantly higher CD34+ cell count than Ficoll and starch group (36.1±5.4×10³/mL, 15.0±3.5×10³/mL, 20.7±4.2×10³/mL) and higher CFC count than Ficoll and RBC lysis group (52.0±7.1×10²/mL, 32.8±4.7×10²/mL, 36.8±5.7×10²/mL). But the results of CD34+ cell count (65.7±11.2×10³/mL) and CFC count (117.8±15.8×10²/mL) of untreated control group are significantly higher than those of all other treated groups. Conclusion:Umbilical cord blood processed with 3% gelatin sedimentation has higher recovery rate of MNC, CD34+, cell and CFC than other groups. Unlike other reports, the absolute numbers of CD34+ cell and CFC count of 3% gelatin sedimentation method are significantly lower than those of untreated control group. Different laboratory processes with gelatin could be one cause of these differences, a study for standardized laboratory methods should be established to obtain higher recovery rate of hematopoietic cells after RBC depletion.

Poster Session : PS 1048; Gastroenterology (Gastrointestinal Tract) ; Comparison of the Self Expanding Metal Stent in Endoscopic and Fluoroscopic Control in Malignant Esophageal Stricture

( Hong Kyu Lim ),( Jung Boom Hong ),( Cheol Woong Choi ),( Dae Hwan Kang ),( Hyung Wook Kim ),( Ja Jun Goo ),( Peel Jung ),( Sook Kyoung Oh ) 대한내과학회 2014 대한내과학회 추계학술대회 Vol.2014 No.1

Background: This study compares the effi cacy and safety between the endoscopic direct vision technique self expanding metal stent (endoscopy group) and fi uoroscopy guided self expanding metal stent (fi uoroscopy group) in malignant stricture. Methods: A total of 118 patients, 94 from the fi uoroscopy group and 24 from the endoscopy group, who underwent self expanding metal stent (SEMS) between January 2009 and December 2013, were reviewed retrospectively on single center experience. Each procedure time and fiuoroscopic guided time were measured. Early and late complications, such as tumor, tissue overgrowth, migration, retrosternal pain and perforation, were recorded. Dysphagia before and after stent placement was scored on a 5-point scale. Results: We analyzed 118 patients (18 women: mean age 69±10. 7) with dysphagia due to inoperable esophageal stricture of which 58 for squamous cell carcinoma, 58 for adenocarcinoma and 2 for extrinsic compression. The mean procedure time of endoscopy and fi uoroscopy group were 6. 0±1. 2 min and 15. 0±4. 8 min (p Conclusions: It is safe to perform SEMS under endoscopic control without fi uoroscopy. This confi rms the endoscopic direct vision technique SEMS as an effective method for palliative treatment of malignant esophageal dysphagia.