A Rare Case of Thoracic Myelopathy Caused by Spinal Dural Arteriovenous Fistula in Chemotherapy Treated Patient

전소연,조이찬,임성훈,홍보영,인연권,김준성 대한근전도전기진단의학회 2017 대한근전도 전기진단의학회지 Vol.19 No.1

Spinal arteriovenous fistula is the most common vascular malformation of the spinal cord and causes progressive impairment like paraplegia or tetraplegia. Diagnosis of the disease is often challenging because its heterogeneous presentation mimics those of other neurological disorders, such as lumbosacral radiculopathy or peripheral polyneuropathy. Here we report a case of thoracic myelopathy resulting from spinal arteriovenous fistula in a patient treated with chemotherapy. In our clinic, he was diagnosed with spinal arteriovenous fistulas through magnetic resonance imaging and spinal angiography. Electromyography was used to evaluate the clinical features of the patient. Subsequently, he underwent surgery and was transferred to our outpatient department to continue rehabilitation therapy. Eventually, the motor power grade in his lower extremities improved from poor to fair and he was able to walk independently with a wheel walker.

AC-driven Organic Light Emission Devices with Carbon Nanotubes

전소연,유세기 한국물리학회 2017 THE JOURNAL OF THE KOREAN PHYSICAL SOCIETY Vol.70 No.4

We have investigated alternating current (AC)-driven organic light-emitting devices (OLEDs), with carbon nanotubes (CNTs) incorporated within the emission layer. With CNT incorporation, the brightness of the OLEDs was substantially improved, and the turn-on voltage was reduced by at least a factor of five. Furthermore, the current levels of the CNT-incorporated OLEDs were lower than that of the reference device. A roughly 70% decrease in the current level was obtained for a CNT concentration of 0.03 wt%. This was accomplished by keeping the concentration of CNTs low and the length of CNTs short, which helped to suppress the percolation networking of CNTs within the emitting layer. Strong local electric fields near the end-tips of CNTs and micro-capacitors formed by dispersed CNTs might have caused this high brightness and these low currents. CNT incorporation in the emitting layer can improve the characteristics of AC-driven OLEDs, which are considered to be one of the candidates for flat panel displays and lightning devices.

4. 국가표준 예방접종률 조사방법을 이용한 3세 아동의 예방접종률

전소연 한국모자보건학회 2013 한국모자보건학회 학술대회 연제집 Vol.2013 No.1

전․후기 노인들의 사회적 관계와 신체활동 실천과의 관련성

전소연,이석구 한국농촌의학.지역보건학회 2023 농촌의학·지역보건 Vol.48 No.2

Objectives: This study aims to reveal the relationship between social relations and physical activity in the young-old and old-old elderly. Methods: Data from 2020 National survey of Older Koreans were used, and a total of 10,097 subjects over the age of 65 were included in analysis. The dependent variable was physical activity, and the independent variables were social relations barrier and motivational factors. x2-test and binary logistic regression were performed for data analysis. Results: The physical activity rate in the elderly were 40.8% in the young-old and 29.2% in the old-old. The socio-demographic characteristics affecting physical activity were the young-old elderly were sex, residential area, employment status and household income, and the old-old elderly were sex, age, residential area, education level and household income. The social relations barrier factors affecting physical activity were the young-old elderly were number of close friends, family care, exercise information search and video viewing, and the old-old elderly were household type, number of close friends, participation in exercise education, exercise information search and video viewing. The social relations motivational factors affecting physical activity were the young-old elderly were call with children/relative/friend, participation in sports activity, access time from home to parks, and the old-old elderly were call with children/relative/friend, participation in sports activity, satisfaction with green spaces. Conclusions: It was found that social relations barrier and motivational factors of the elderly are important factors to consider when developing physical activity promotion strategy, and there are also difference between the age of the elderly.

서비스업체 근로자의 직무요구와 직무 스트레스 회복경험이직무착근도에 미치는 영향

전소연,이연향,최은경 한국지역사회간호학회 2018 지역사회간호학회지 Vol.29 No.2

Purpose: The purpose of this study is to identify the effects of job demand and recovery experience from job stress on job embeddedness among workers in the service industry. Methods: The participants were 223 workers from the service industry in P and Y Cities with the help of a structured self-report questionnaire, administered between July 10 and August 20, 2017. The data were analyzed using descriptive statistics, t-test, ANOVA, Scheffé test, Pearson correlation coefficients and stepwise multiple regression. Results: There were significant differences in job embeddedness in terms of satisfaction with salary, continuous service, perceived stress level and the perceived health status of the subjects. There were significant positive correlations between role clarification in job demands (r=.55), recovery experience from job stress (r=.27) and job embeddedness. From the multiple regression analysis, the most significant factors affecting job embeddedness were found to be role clarification in job demands (β=.47), recovery experience from job stress (β=.23), and perceived stress level (β=.18). These variables explain 34.0 % of the total variance in job embeddedness. Conclusion: In order to increase job embeddedness among workers in the service industry, it is necessary to prepare measures to increase recovery experience from job stress and to decrease role clarificationin job demand, and perceived stress level.

고혈압 지각과 관리행동 유형 연구

전소연,이석구 한국주관성연구학회 2008 주관성연구 Vol.- No.16

The individual subjectivity is comprised in cognitive structure of humans, so human behaviors are affected by it. In aspect of this idea, the reasons of this study are that the patient's subjectivity with high blood pressure has diversity on perception and management behavior on high blood pressure. The aims of this study are to categorize patient's subjectivity on perception and management behaviors, to determine personal characteristics by category, then to be helped development of effective high blood pressure management programme. The study method is Q-methodological approach. The study population is 22 persons aged above 30 years old with high blood pressure(P-sample), we made 23 Q-sample statements, and then classified Q-sample statements into 7 points standard. The data was analysed using QUANL PC programme, an established Q methodology computer software programme, classified 4 types. The first type is 'effort on improving knowledge and management behaviors or high blood pressure'. The second type is 'value on side effect of drug or complication of high blood pressure'. The third type is 'dependent on referents'. The fourth type is 'burden with life style modification and lifelong intake of drug'. In conclusion, different strategy is needed according to type of patient's characteristics because preferred view of the patient's perception and management behaviors are different each other.

Electroless Nickel Autocatalytic Gold (ENAG) 표면처리와 Sn-Ag-Cu솔더 간 접합부의 계면반응 및 취성파괴 신뢰성 비교 연구

전소연,권상현,이태영,한덕곤,김민수,방정환,유세훈 한국마이크로전자및패키징학회 2022 마이크로전자 및 패키징학회지 Vol.29 No.3

In this study, the interfacial reaction and drop impact reliability of Sn-Ag-Cu (SAC) solder and electroless nickel autocatalytic gold (ENAG) were studied. In addition, the solder joint properties with the ENAG surface finish was compared with electroless nickel immersion gold (ENIG) and electroless nickel electroless palladium immersion gold (ENEPIG). The IMC thickness of SAC/ENAG and SAC/ENEPIG were 1.15 and 1.12 ㎛, respectively, which were similar each other. The IMC thickness of the SAC/ENIG was 2.99 ㎛, which was about two times higher than that of SAC/ ENAG. Moreover, it was found that the IMC thickness of the solder joint was affected by the metal turnover (MTO) condition of the electroless Ni(P) plating solution, and it was found that the IMC thickness increased when the MTO increased from 0 to 3. The shear strength of SAC/ENEPIG was the highest, followed by SAC/ENAG and SAC/ENIG. It was found that when the MTO increased, the shear strength was lowered. In terms of brittle fracture, SAC/ENEPIG was the lowest among the three joints, followed by SAC/ENAG and SAC/ENIG. Likewise, it was found that as MTO increased, brittle fracture increased. In the drop impact test, it was confirmed that the 0 MTO condition had a higher average number of failures than the 3 MTO condition, and the average number of failures was also higher in the order of SAC/ENEIG, SAC/ENAG, and SAC/ENIG. As a result of observing the fracture surface after the drop impact, it was found that the fracture was between the IMC and the Ni(P) layer. 본 연구에서는 Sn-Ag-Cu (SAC)솔더와 electroless nickel autocatalytic gold (ENAG) 표면처리 간 계면반응 및낙하충격 신뢰성을 연구하였다. ENAG 솔더 접합부의 특성은 다른 Ni계 표면처리인 electroless nickel immersion gold (ENIG)와 electroless nickel electroless palladium immersion gold (ENEPIG)와 비교 평가 하였다. SAC솔더와 Ni계 표면처리 계면에서는 (Cu, Ni)6Sn5 intermetallic compound (IMC)가 형성되었다. IMC 두께는 SAC/ENAG와 SAC/ENEPIG 는 1.15 ㎛, 1.12 ㎛로 비슷하였고, SAC/ENIG는 IMC 두께가 2.99 ㎛로 SAC/ENAG보다 2배 정도 높았다. 또한 솔더접합부의 IMC두께는 무전해 Ni(P) 도금액의 metal turnover (MTO)조건에 영향을 받는 다는 것을 알 수 있었고, MTO가0에서 3으로 증가하면 IMC두께가 증가함을 알 수 있었다. 전단강도는 SAC/ENEPIG의 접합강도가 가장 높았고, SAC/ ENAG, SAC/ENIG 순이었다. 또한, MTO가 증가하면, 전단강도가 낮아짐을 알 수 있었다. 취성파괴도 SAC/ENEPIG가세가지 접합부 중 가장 낮았으며, SAC/ENAG, SAC/ENIG 순이였고, 마찬가지로 MTO가 증가하면 취성파괴가 높아짐을알 수 있었다. 낙하충격 시험에서도 0 MTO조건이 3 MTO조건보다 높은 평균파괴횟수를 갖는 것을 확인하였고, 평균파괴횟수도 SAC/ENEPIG, SAC/ENAG, SAC/ENIG순으로 높았다. 낙하 충격 후 파단면을 관찰한 결과 크랙은 IMC와 Ni(P) 층 사이에서 진행되었다.

이런책 출판은 어떨까

전소연,Jeon, So-Yeon 대한출판문화협회 2005 출판저널 Vol.355 No.-

대학생들의 사회적 지지와 건강상태, 대학생활 적응 및 학업성취도와의 관계

전소연 한국학교・지역보건교육학회 2010 한국학교지역보건교육학회지 Vol.11 No.1

처음 발견된 고혈압 환자들의 관리의도와 실천에 영향을 미치는 요인

전소연,주성민,이석구 충남대학교 의학연구소 2001 충남의대잡지 Vol.28 No.2

This study will provide early effective intervention strategy through a predicting behavioral intention or behaviors of hypertension patients, and improve the compliance via early removal of barriers. Study subjects are new case of hypertension with above stage 2 by JNC-Ⅵ from first community survey including blood pressure measurement, sociodemographic questionnaires and physical examination in study region. Second survey was applied to the new case of hypertension(541 persons) for estimation of behavioral intention. Subject of this survey was 383 persons. Follow-up survey performed about 5 months later after regular telephone visiting by trained nurse previously. Final study subjects were 222 persons with above stage 2 hypertension by JNC-Ⅵ criteria. This results were as follows ; 1. State of hypertension management 18.9% of subjects managed with drug medication, 19.7% with exercise, 29.8% with quitting or reducing of smoking, 37.0% with quitting or reducing of alcohol. 2. Sociodemographic factors Drug medication was higher in old age, lower education level, and rural residents. Its difference is statistically significant. In gender difference, female was higher than male. In aspect of life style modification management, exercise rate was higher in male, high educational level, 5th and 4th decade age group, but it was not statistically significant. Reducing or quitting of smoking was higher in male, rural area residents, above high school educational level, but was not significant with the exception of habitation area. 3. Life style modification It was revealed statistically significant that male and rural area residents were higher in life style modification. In education level, contrary to the intention for life style modification, the lower education level is, the higher life style modification occurs. 4. Factors associated with intention The former or abstinence smoker and alcohol drinker revealed higher intention score than current in intention for life style modification. And the other variables were not statistically significant.