교대근무자의 회복력과 수면 및 방어 특성

이소진,박철수,김봉조,이철순,차보석,이동윤,서지영,Lee, So-Jin,Park, Chul-Soo,Kim, Bong-Jo,Lee, Cheol-Soon,Cha, Boseok,Lee, Dongyun,Seo, Ji-Yeong 대한수면의학회 2014 수면·정신생리 Vol.21 No.2

목 적 : 교대근무는 상당한 스트레스 상황이며 교대근무에 잘 적응하는 정도와 관련된 요인들을 아는 것은 중요하다. 본 연구에서는 교대근무 간호사들의 회복력과 관련된 수면 및 성격 관련 요인들을 조사해보고자 했다. 방 법 : 일 대학병원에서 3교대 근무를 하고 있는 간호사 95명을 대상으로 자가 설문지 조사를 시행했다. 코너-데이비드슨 회복력 척도, 병원 불안-우울 척도, 아침형-저녁형 질문지와 피츠버그 수면의 질 지수를 포함한 수면 관련 설문, 한국판 방어유형 질문지를 이용했다. 결 과 : 회복력과 유의한 상관을 보인 요소들은 근무자들의 나이, 근무 기간, offday oversleep, HAD-D 및 HAD-A 점수, DSQ의 적응적 방어유형, 자기억제적 방어유형이었다(p < 0.05). 다중회귀분석에서는 나이가 많을 수록(${\beta}=0.34$, p < 0.05), 우울 증상이 적을 수록(${\beta}=-0.25$, p < 0.05), 적응적 방어유형을 많이 사용할 수록(${\beta}=0.45$, p < 0.001), 자기억제적 방어유형을 적게 사용할 수록(${\beta}=-0.19$, p < 0.05) 회복력이 높은 것으로 나타났다. 방어기제들의 경우 체념이 적을 수록(${\beta}=-0.20$, p < 0.05), 승화(${\beta}=0.19$, p < 0.05)와 전능(${\beta}=0.19$, p < 0.05), 유머(${\beta}=0.20$, p < 0.05)를 많이 사용할 수록 회복력이 높은 것으로 나타났다. 결 론 : 본 연구에서는 일 대학병원의 3교대 근무 간호사들의 특정 방어유형 및 방어기제가 회복력과 관계된다는 것을 밝힐 수 있었다. 추후 더 많은 교대근무 간호사들을 대상으로 회복력과 관련된 수면 및 성격 관련 인자들을 밝히는 전향적 연구가 가능할 것이다. Objectives: Shift work is a stressful situation. It is important to know the factors associated with the ability to adapt to a shift work schedule. The aim of the present study was to investigate the association between sleep, as well as personality variables, and the resilience of shift work nurses. Method: Self-report questionnaires were administered to 95 nurses who worked in one national university hospital. Connor-Davidson resilience scale, hospital anxiety and depression scale, morningness-eveningness scale, Pittsburgh sleep quality index, other sleep-related questionnaires, and Korean defense style questionnaires were used. Results: Age, shift work duration, off-day oversleep, depression, anxiety, adaptive defense style, and self-suppressive defense style were significantly associated with resilience (p < 0.05). Multiple regression analysis showed that age (${\beta}=0.34$, p < 0.05), depression (${\beta}=-0.25$, p < 0.05), adaptive defense style (${\beta}=0.45$, p < 0.001), and self-suppressive defense style (${\beta}=-0.19$, p < 0.05) significantly predicted the resilience of shift work nurses. Concerning individual defense mechanisms, resignation (${\beta}=-0.20$, p < 0.05), sublimation (${\beta}=0.19$, p < 0.05), omnipotence (${\beta}=0.19$, p < 0.05), and humor (${\beta}=0.20$, p < 0.05) significantly predicted the resiliency. Conclusion: The findings indicate that a specific defense style and other mechanisms were associated with the resilience of shift work nurses. A future prospective study with more participants could further clarify the relationship between sleep-related variables, as well as personality factors, and resilience of shift work nurses.

코골이 클리닉을 방문한 환자들의 폐쇄성 수면무호흡증 인식도

이소진,이진성,신홍범,조상용,이재서,정도언,Lee, So-Jin,Lee, Jin-Seong,Shin, Hong-Beum,Cho, Sang-Yong,Rhee, Chae-Seo,Jeong, Do-Un 대한수면의학회 2011 수면·정신생리 Vol.18 No.2

목 적 : 폐쇄성 수면무호흡증은 흔하고 심각한 질환이므로 적극적인 진단과 치료가 필요하다. 본 연구에서는 이미 증상이 있어 코골이 클리닉을 방문한 환자들의 코골이와 수면무호흡증에 대한 인식 정도를 조사하고자 하였다. 방 법 : 서울대학교병원 이비인후과 코골이 클리닉을 방문한 179명(남자 135명, 여자 44명)의 환자를 대상으로 설문 조사를 시행하였다. 설문지를 통해 클리닉을 방문한 이유, 수면무호흡증과 코골이 치료법, 검사 방법, 관련 증상 및 합병증에 대한 지식을 파악하였다. 결 과 : 환자들의 평균 연령은 $45.2{\pm}14.5$세였고 체질량지수의 평균값은 $24.8{\pm}3.4$였다. 환자들의 89.4%이 폐쇄성 수면무호흡증에 대해 들어보았다고 대답했으며, 주로 텔레비전과 라디오와 같은 대중매체(58.1%)를 통해 정보를 접했다고 했다. 코골이와 폐쇄성 수면무호흡증이 밀접한 관련이 있다는 것은 60.3%가 알고 있었고, 59.8%는 치료방침을 정하기 위해 야간 수면다원검사가 필요함을 알고 있었다. 코골이 치료 방법으로는 수술(67%)을 가장 많이 알고 있었다. 코골이 치료를 선택할 때 의사의 권고에 따르겠다는 사람들이 55.9%로 가장 많았으나 양압술을 선택한 사람은 아무도 없었다. 양압술 치료에 대해 들어본 사람들은 전체의 12.3%였고, 폐쇄성 수면무호흡증의 치료로 양압술을 선택한 사람은 아무도 없었다. 환자들 중에서 폐쇄성 수면무호흡증이 고혈압과 관련되어 있다는 것을 아는 사람들은 34.6%, 당뇨와 관련이 있다는 것을 아는 사람들은 12.8%였다. 결 론 : 이미 증상이 있어 코골이 클리닉을 방문한 사람들조차 폐쇄성 수면무호흡증의 위험성과 적절한 치료 방법에 대해 잘 알고 있지 못했다. 환자와 일반인들을 대상으로 폐쇄성 수면무호흡증에 대해 교육하고 홍보하는 것이 향후 질환의 진단율을 높이고 적절한 치료로 연결하며 연관 질환을 예방하는 것에 중요할 것이다. Objective: OSAS (obstructive sleep apnea syndrome) is a common disorder and its consequences are often serious. It is important to detect the disorder early in the course for proper treatment. This study is to grasp the snoring clinic visitors' knowledge level of OSAS. Method: One hundred and seventy-nine visitors at the of snoring clinic of Seoul National University Hospital were surveyed by questionnaire about reasons of visit and knowledge of treatment methods of snoring and OSAS, diagnostic method, OSAS-related symptoms, and complications. Results: Most of the respondents (89.4%) "have already heard about OSAS" and the major sources of information was the mass media (58.1%) such as television and radio. More than half (60.3%) were aware that snoring is closely related to OSAS. More than half (59.8%) recognized that a nocturnal polysomnograpy was necessary for proper diagnosis. Two thirds (67%) of the respondents noted surgery as a treatment for snoring. More than half (55.9%) answered that they would follow the doctor's advice on the treatment choice. Only 12.3% of respondents "have heard about nCPAP". No one chose nCPAP (nasal continuous positive airway pressure) as a treatment for either snoring or OSAS. About one third (34.6%) of the respondents were aware that OSAS is related to hypertension. Only 12.8% noted that OSAS is related to diabetes mellitus. Conclusion: Visitors at the snoring clinic were found to have substantially limited knowledge of health risks and proper treatments of OSAS. We suggest that it is crucially important to educate patients and offer easy-to-understand information on snoring and OSAS. We predict that provision of educaiton and information to patients and general public will faciliate the diagnosis and treatment of snoring and OSAS and reduce the related disorders such as hypertension, stroke, and diabetes mellitus.

말기암환자의 혈중 Visfatin 농도와 식욕부진의 관계

이소진,이준용,최윤선,이준영,Lee, So Jin,Lee, Joon Yong,Choi, Youn Seon,Lee, June Young 한국호스피스완화의료학회 2014 한국호스피스.완화의료학회지 Vol.17 No.1

목적: 식욕부진은 호스피스 암환자의 흔한 증상이며 여러 문헌에서 먹는 행동(feeding behavior)을 조절하는데 있어 visfatin의 가능성을 제시하고 있다. 본 연구에서는 말기암환자에서 증가한 visfatin 농도가 식욕조절과 영양상태 항상성 조절에 관여할 것이라 가설을 세웠다. 방법: 2009년 7월부터 2010년 7월까지 13개월 동안, 만 20세 이상의 말기암환자 69명을 대상으로 혈장 visfatin 농도를 측정하였다. 나이, 성별, 체질량 지수, 활력 징후, 원발암 부위, 암 치료 경력, 투약상황, ECOG(Eastern Cooperative Oncology Group) 수행지수, 혈색소, 백혈구 수, C-반응성 단백질, 총 콜레스테롤, 알부민, 림프구수, 혈당, 혈액요소질소, 크레아티닌, TNF-${\alpha}$ (tumor necrosis factor-alpha), Interukin-6, 렙틴 등의 혈액검사를 시행하였다. 결과: 대상자의 평균 나이는 65.5세였고 단변량 분석상 맥박, ECOG 수행 지수, opioid 사용여부, visfatin 농도에 따라 식욕부진이 있는 군과 없는 군의 차이를 보였다. Visfatin 농도는 단변량 분석결과 식욕부진과 관련이 있는 것으로 나타났으나(P=0.0323) 식욕부진에 영향을 주는 인자들을 보정한 다중 로지스틱 회귀 분석 결과에서는 통계학적인 관련성이 사라졌다. 영양지표들 중 체질량 지수, 렙틴, 총 콜레스테롤과는 관련이 없었으나 림프구수(P=0.0198) 혈중 albumin 농도(P=0.0013)와 중간 정도의 음의 관련성을 나타냈다. 결론: 호스피스 암환자에서 visfatin과 식욕부진의 관련성은 통계적으로 유의하지 않았다. 향후 기전에 대한 연구와 전향적 연구가 필요할 것으로 생각된다. Purpose: Anorexia is a common symptom in terminal cancer patients. Some data have suggested a role of visfatin in regulating feeding behavior. We studied the relationship of a serum visfatin level and anorexia in cancer patients provided with hospice care. Methods: After informed consent was obtained, 69 cancer patients over 20 years old at a hospice center were enrolled in the study from July 2009 to July 2010. We characterized patients by age, sex, body mass index, primary cancer site, and Eastern Cooperative Oncology Group (ECOG) performance status, etc. Also, blood tests were performed to measure the level of hemoglobin, white blood cell (WBC), C-reactive protein (CRP), total cholesterol, albumin, lymphocyte count, glucose, blood urea nitrogen (BUN), creatinine, tumor necrosis factor-alpha (TNF-${\alpha}$), interukin-6, leptin and visfatin. Results: The mean age of subjects was 65.5 years old, According to univariate analysis, pulse, ECOG performance scale, opioid use and visfatin level were different between the anorexia and non-anorexic group (P<0.05). The median visfatin level was higher in the anorexia group than the good appetite group (P=0.0323). Serum visfatin concentrations were not related with either body mass index or serum leptin or total cholesterol levels, but it was negatively correlated with serum albumin levels (P=0.0198) and lymphocyte counts (P=0.0013). Conclusion: This study did not identify a novel link between visfatin levels and anorexia in cancer patients at a hospice.

수면과 회복력

이소진,박철수,김봉조,이철순,차보석,이동윤,Lee, So-Jin,Park, Chul-Soo,Kim, Bong-Jo,Lee, Cheol-Soon,Cha, Boseok,Lee, Dongyun 대한수면의학회 2015 수면·정신생리 Vol.22 No.2

Good sleepers tend to more resilient than poor sleepers. As sleep and resilience may have a bidirectional relationship, it is important to explore the relationship between healthy sleep and resilience. Objectively and subjectively measured sleep quality showed positive association with resiliency. In one study, more resilient adolescents had higher sleep efficiency, less light sleep, more slow-wave sleep, and a smaller number of awakenings after sleep onset. Circadian typology, jetlag and circadian misalignment may be associated with the capacity to deal with adversity. Eveningness, exposure to chronic jetlag and circadian misalignment might be risk factors for development of psychological problems and mental disorders. Additional studies are needed to evaluate whether promoting healthy sleep behaviors results in increased resilience.

경계성 인격 장애 환자의 수면

이소진,Lee, So-Jin 대한수면의학회 2012 수면·정신생리 Vol.19 No.2

Borderline personality disorder (BPD) is characterized by identity and interpersonal problem, affective dysregulation and pervasive severe impulsivity. Although sleep disturbances are not primary symptoms of BPD, they are important aspects of this disorder. However, clinicians and researchers did not give much attention to the sleep symptoms of BPD yet. Measured by nocturnal polysomnography, increased sleep latency as well as reduced total sleep time and sleep efficiency, and 'depression-like' REM abnormalities (i.e., reduced REM latency and increased REM density) are found in BPD patients. Co-morbid sleep disorders such as chronic insomnia, nightmare disorder or circadian rhythm sleep disorder associated with BPD have been reported. Clinicians should focus on the sleep complaints of BPD patients, and carefully manage such symptoms with sleep hygiene education, cognitive psychotherapy or light therapy.

임베디드 시스템의 가상 ARM 머신의 개발

이소진,안영호,한현희,황영시,정기석,Lee, So-Jin,An, Young-Ho,Han, Alex H,Hwang, Young-Si,Chung, Ki-Seok 대한임베디드공학회 2008 대한임베디드공학회논문지 Vol.3 No.1

To reduce time-to-market, more and more embedded system developers and system-on-chip designers rely on microprocessor-based design methodology. ARM processor has been a major player in this industry over the last 10 years. However, there are many restrictions on developing embedded software using ARM processor in the early design stage. For those who are not familiar with embedded software development environment or who cannot afford to have an expensive embedded hardware equipment, testing their software on a real ARM hardware platform is a challenging job. To overcome such a problem, we have designed VMA (Virtual ARM Machine), which offers easier testing and debugging environment to ARM based embedded system developers. Major benefits that can be achieved by utilizing a virtual ARM platform are (1) reducing development cost, (2) lowering the entrance barrier for embedded system novices, and (3) making it easier to test and debug embedded software designs. Unlike many other purely software-oriented ARM simulators which are independent of real hardware platforms, VMA is specifically targeted on SYS-Lab 5000 ARM hardware platform, (designed by Libertron, Inc.), which means that VMA imitates behaviors of embedded software as if the software is running on the target embedded hardware as closely as possible. This paper will describe how VMA is designed and how VMA can be used to reduce design time and cost.

의학전문대학원 학생들의 일주기 선호와 방어기제

이소진,박철수,김봉조,이철순,차보석,강효승,Lee, So-Jin,Park, Chul-Soo,Kim, Bong-Jo,Lee, Cheol-Soon,Cha, Bo-Seok,Kang, Hyoseung 대한수면의학회 2013 수면·정신생리 Vol.20 No.2

목 적 : 방어기제는 성격의 영향을 받으며, 방어기제로부터 파생된 행동들을 관찰함으로써 추정 및 측정이 가능하다. 현재까지 방어기제와 일주기 선호 사이의 관계에 대해서는 밝혀진 바가 없었다. 본 연구에서는 일 의학전문대학원 학생들을 대상으로 방어기제와 일주기 선호 사이의 관계를 알아보고자 했다. 방 법 : 일 의학전문대학원 학생 148명을 대상으로 자가설문조사를 시행하였다. 아침형-저녁형 질문지, Beck 우울 척도-2, 한국판 방어유형질문지를 이용하였다. 결 과 : 저녁형과 아침 중간형은 공상, 수동 공격, 소비, 승화, 억제의 방어기제들에서 유의한 차이를 보였다(p<0.05). 다중회귀분석에서 소비가 높을 수록(beta=-0.262, p= 0.001), 승화가 적을 수록(beta=0.185, p=0.023), 여자보다는 남자(beta=0.175, p=0.031)가 저녁형을 유의하게 예측하였다. 결 론 : 본 연구에서는 일 의학전문대학원 학생들에서 소비와 승화의 방어기제가 일주기 선호와 관계된다는 것이 밝혀졌다. 그러나 단면 연구로부터의 결과이므로 둘 사이의 인과 관계에 대해서는 알 수가 없다. 환경 요인을 조정하여 일주기 선호가 바뀔 때 방어기제의 변화가 동반되는지에 대한 후속 연구가 가능할 것이다. Objectives: Previous studies have reported an association between circadian preference and personality. Defense mechanism is unconscious ego process which deals with an individual's anxiety and is closely associated with one's personality. Our aim is to investigate the association between defense mechanism and circadian preference in medical students. Methods: One hundred forty eight medical students (70 males, 78 females), aged 22 to 30, answered the Beck Depression Inventory-II, Morningness-eveningness Questionnaire, and Korean version of Defense Style Questinnaire. Results: Consumption (beta=-0.262, p=0.001) and being a male (beta=0.175, p=0.031) were significant positive predictors of eveningness, while sublimation (beta=0.185, p=0.023) was a significant negative predictor of eveningness. Conclusion: Our study showed a relationship between specific defense mechanisms (i.e., consumption and sublimation) and eveningness in medical students, but it did not address whether the relationship is a causal one.

축산환경 개선을 위한 암모니아 제거 미생물의 탐색 및 분리

이소진,이은영,Lee, So-Jin,Lee, Eun-Young 한국미생물·생명공학회 2009 한국미생물·생명공학회지 Vol.25 No.4

A study on the screening and isolation of microorganism was performed for the removal of main malodor, such as ammonia, produced from the livestock farm. The main malodor components in livestock farm are ammonia, volatile fatty acids, sulfur compounds and trimethylamine. Damages to man and livestock were originated from malodors mainly due to ammonia, and thus ammonia reduction experiments were performed. Sludge of sewage treatment plant was inoculated in the sesame dregs culture, from which ammonia gas was produced. An aerobically grown, pure cultured isolated from the 10th enrichment culture was analyzed by 16S rRNA sequencing and identified as Alcaligenes sp. NS-1. This strain NS-1 precultured in the sesame dregs was found to remove ammonia gas with an efficiency of approximately 99-100% at an average concentration of 40 ppmv of ammonia gas. When the strain NS-1 sprayed to pig excrements, the removal efficiency at an average concentration of 100 ppmv of ammonia was approximately 60% after 16 hr.

다종 영상을 이용한 건설현장 훼손 표토의 체적 및 지질특성에 대한 분광정보 분석 기술

이소진,김종태,정교철,Lee, So-Jin,Kim, Jong-Tae,Jeong, Gyo-Cheol 한국지반공학회 2022 지반 : 한국지반공학회지 Vol.38 No.2

부엌의 변화과정을 통해 본 일식주택 공간적 변화에 관한 연구

이소진,김용범,박용환,Lee, So-Jin,Kim, Young-Bum,Park, Yong-Hwan 한국주거학회 2008 한국주거학회 논문집 Vol.19 No.3

When Korea opened its ports and underwent Japanese colonization, many Japanese style houses were built in Korea. Following Korea's independence from Japan, Koreans began to reside in these houses. The objective of this study is to examine the current state of Japanese style residence areas and Japanese style houses in Korea, and to determine the change in the characteristics of dining kitchens that have taken place since Koreans have lived in them. In the process, while assimilation occurred, there was also a conflict between the residential lifestyles of the two cultures, developing into a state where two housing cultures co-existed. The dining kitchens showed the most sensitive adjustments to social changes, facilitating a number of important changes in the process of modernizing houses. In this regard, the intention is to determine how the dining kitchens responded to other areas within the house as they were being transformed. Research for this study is based on previous studies that were carried out in 1991 on Japanese style houses, in order to clearly define the process of change chronologically rather than from a single examination. In consequently, From the process of changes where from a conventional kitchen to DK anger, 1) The public space - wooden floor, living room, etc - had been formed in house spaces. 2) In the lifestyle, privacy secured. It was separated each functional spaces that greeting space for guests and family's space in the lifestyle. 3) The cause of variation could be summarized that differences of living style, a change of life and fuel.