습식 전기집진방식을 이용한 NO와 SO₂기체 동시 제거

윤형준(Hyung Jun Yoon),박현우(Hyun-Woo Park),최수석(Soo seok Choi),박동화(Dong-Wha Park) 한국열환경공학회 2014 한국열환경공학회 학술대회지 Vol.2014 No.-

신체증상장애의 약물치료

윤형준(Hyung-Jun Yoon) 조선대학교 의학연구원 2023 The Medical Journal of Chosun University Vol.48 No.2

Somatic symptoms are common and cause significant functional impairments. Cognitive Behavioral therapy has the strongest evidence in the efficacy for somatic symptom disorder among psy-chosocial treatments. Meanwhile, there have been a few pharmacological studies for somatic symptom disorder. This review aims to provide the practical principles and overview of pharmacotherapy for somatic symptom disorder. The best therapeutic approach is stepped and multidisciplinary care with close cooperation of mental health, medical, physical professionals on the basis of a biopsychosocial model of illness. Psychotropic drugs including the antidepressants, anticonvulsants, and antipsychotics have been applied in the treatment of somatic symptom disorder. Different classes of antidepressants such as selective serotonin reuptake inhibitors, serotonin norepinephrine reuptake inhibitors, and tricyclic antidepressants demonstrated greater improvement compared with placebo in several randomized, placebo-controlled studies. In contrast, although few open trials and case series have reported positive results, there has been no randomized placebo-controlled study for both anticonvulsants and antipsychotics in the treatment of somatic symptom disorder. Future collaborative researches with medical and physical specialist contribute to improving knowledge on the relationship of somatic symptom disorder and functional somatic syndromes and comparing the efficacy of pharmacotherapy, psychosocial interventions, and combination treatments in the treatment of somatic symptom disorder.

사회공포증 환자에서 자기 및 타인 얼굴 인식의 행동 특성

손인정,윤형준,신유빈,김재진,Sohn, In-Jung,Yoon, Hyung-Jun,Shin, Yu-Bin,Kim, Jae-Jin 대한불안의학회 2014 대한불안의학회지 Vol.10 No.1

Objective : Social Phobia is associated with extensive disability and reduced quality of life. The concept of 'social self' is a representation of the self-reflected in the eyes of others, and is recruited during self-face recognition, which is closely related to self-esteem. The aim of this study was to identify the relationship of face recognition for self and others using measures of social anxiety and self-esteem in patients with social phobia. Methods : Twenty-seven patients with social phobia and twenty-three normal controls were evaluated with scales of self-esteem, depression, anxiety and other psychiatric symptoms. All participants completed the self-face recognition task. Nine self-faces, nine other faces and eighty-one morphed faces were presented randomly for each trial. The participants were instructed to make a decision as to whether the stimuli were self-face or not. The responses and reaction times were recorded during the task. Results : There were no group differences of the morphing composition at the recognition start point as self-face. In patients with social phobia, the mean reaction time at the start point of recognizing as a self-face was 1,037.6 ms, which was significantly longer than that of normal controls (911.3 ms, p<0.05). Patients with social phobia showed a significant negative correlation between the mean reaction time and the severity of depression when the stimuli were recognized as a self-face (r=-0.421, p<0.05). Conclusion : A difficulty in attention rather than avoidance may be an important factor of face recognition in patients with social phobia. When considering self-face recognition in such patients, many factors, such as anxiety, depression, working memory and theory of mind, need to be considered.

사회불안장애에서 편도 하위영역의 내재 기능적 연결성의 특성

김진성,윤형준,박선영,신유빈,김재진,Kim, Jinseong,Yoon, Hyung-Jun,Park, Sunyoung,Shin, Yu-Bin,Kim, Jae-Jin 대한불안의학회 2014 대한불안의학회지 Vol.10 No.1

Objective : The amygdala has been considered to be a critical region in the pathophysiology of social anxiety disorder, but subregional connectivity pattern has not been examined yet despite lots of previous functional neuroimaging studies. Methods : Resting-state functional magnetic resonance imaging data was obtained in 19 patients with social anxiety disorder and 20 normal controls, and default mode functional connectivity with each of basolateral, centromedial and superficial areas of the amygdala was measured and compared between the two groups. Results : Differential amygdala-based networks between the two groups were distributed to all over the brain. In particular, however, a bias on the amygdala-cingulate pathway was observed in the superficial amygdala only. Connectivity strengths between the superficial amygdala and perigenual anterior cingulate cortex were correlated with scores of social interaction and avoidance. Conclusion : Our findings provide new insights into understanding of the intrinsic cognitive bias model of social anxiety disorder. An abnormality in superficial amygdala-anterior cingulate connectivity may influence on cognitive processing of socially-relevant information in social anxiety disorder.

땀과 열이 플라스틱 안경테에 미치는 영향

김소라(So Ra Kim),윤형준(Hyung Jun Yoon),현아영(A-Young Hyun),박시윤(Si Yoon Park),박미정(Mijung Park) 한국안광학회 2017 한국안광학회지 Vol.22 No.4

품질지표기반 정치 후원금 지원을 위한 국회의원 추천시스템 연구

정현우 ( Jung Hyun Woo ),윤형준 ( Yoon Hyung Jun ),이시은 ( Lee See Eun ),박솔희 ( Park Sol Hee ),손소영 ( Sohn So Young ) 한국품질경영학회 2021 품질경영학회지 Vol.49 No.1

Purpose: During 2015-2019, the average amount of political donation to the national assembly members in Korea was 1,000 won per person. Despite its benefits such as receiving tax credits, the donation system has not been actively practiced. This paper aims to promote political donations by suggesting a recommendation system of national assembly members by analysing the bills they proposed. Methods: In this paper, we propose a recommendation system based on two aspects: how similar the newly proposed or ammended bills are to the sponsors’ interest (similarity index) and how much effort national assembly members put into those bills (intensity index). More than 25,000 bills were used to measure the recommendation quality index consisted with both the similarity and the intensity indices. Word2vec was used to calculate the similarity index of the bills proposed by the national assembly member to the sponsor’s interest. The intensity index is calculated by diving the number of newly proposed or entirely revised bills with the number of senators who took part in those bills. Subsequently, we multiply the similarity index by the intensity index to obtain the recommendation quality index that can assist sponsors to identify potential assembly members for their donation. Results: We apply the proposed recommendation system to personas for illustration. The recommendation system showed an average f1 score about 0.69. The analysis results provide insights in recommendation for donation. Conclusion: n this study, the recommendation system was proposed to promote a political donation for national assembly members by creating the recommendation quality index based on the similarity and the intensity indices. We expect that the system presented in this paper will lower user barriers to political information, thereby boosting political sponsorship and increasing political participation.

고혈압 환자에서 불안증상에 영향을 미치는 정신심리학적 요인

문석현,김승곤,양혜정,서은현,윤형준,Moon, Seock Hyeon,Kim, Seung-Gon,Yang, Hae-Jung,Seo, Eun Hyun,Yoon, Hyung-Jun 대한불안의학회 2022 대한불안의학회지 Vol.18 No.1

Objective : The aim of this study was to investigate the prevalence of anxiety symptoms and its association with psychological factors in patients with hypertension. Methods : The Participants included 124 patients with hypertension. Anxiety symptoms were evaluated by the Hospital Anxiety and Depression Scale. Socio-demographics, perceived stress, state-trait anger, life satisfaction, and ego resiliency were assessed. Stepwise multiple regression analyses were carried out to examine the impact of perceived stress, state-trait anger, and life satisfaction on anxiety symptoms. In addition, moderated regression analysis was performed to explore the moderating effect of ego resiliency between perceived stress and anxiety symptoms. Results : A total of 17 subjects (13.7%) were identified as having anxiety symptoms. Higher perceived stress and state-trait anger, and lower life satisfaction were found to be significant correlates of anxiety symptoms. In the final model, higher levels of perceived stress (β=0.378, p<0.001) and trait anger (β=0.320, p<0.001) were related to higher levels of anxiety symptoms, while a higher level of life satisfaction (β=-0.166, p=0.025) was associated with a lower level of anxiety symptoms. Further, ego resiliency buffered the negative effect of perceived stress on anxiety symptoms. Conclusion : This study demonstrated the prevalence of anxiety symptoms and associated psychological factors among patients with hypertension. Our findings suggest that improving life satisfaction and ego-resiliency as well as controlling stress and anger may be important in the management of anxiety symptoms in patients with hypertension.

당뇨병 환자에서 우울 및 불안증상과 자아탄력성, 사회적 갈등 및 지지 사이의 연관성

정회운,김상훈,박상학,김승곤,김정호,서은현,윤형준,Jung, Hoe-Woon,Kim, Sang Hoon,Park, Sang Hag,Kim, Seung-Gon,Kim, Jung Ho,Seo, Eun Hyun,Yoon, Hyung-Jun 대한불안의학회 2020 대한불안의학회지 Vol.16 No.1

Objective : The purpose of this study was to investigate the association of depressive/anxiety symptoms with psychosocial factors including ego resilience, social conflict, and social support as well as hemoglobin A1c in patients with diabetes mellitus (DM). Methods : The subjects were 144 patients with DM. Depressive/anxiety symptoms were evaluated by the Hospital Anxiety and Depression Scale. Sociodemographic factors, hemoglobin A1c, ego resilience, social conflict, and social support were measured. Multiple regression analyses were performed to examine the impact of hemoglobin A1c, ego resilience, social conflict, and social support on depressive/anxiety symptoms. Results : A total of 32.6% and 24.3% of participants were identified with depressive and anxiety symptoms, respectively. Depressive/anxiety symptoms positively correlated with the social conflict score. Conversely, ego resilience and social support negatively correlated with depressive/anxiety symptoms. In the final model of the multiple regression analyses, ego resilience was associated with a lower level of depressive (β=-0.083, p=0.019)/anxiety (β=-0.125, p=0.001) symptoms whereas social conflict was related to a higher level of depressive (β=0.353, p=0.011)/anxiety (β=0.460, p=0.003) symptoms. Also, hemoglobin A1c positively associated with anxiety symptoms (β=0.495, p=0.012) whereas social support negatively related to depressive symptoms (β=-0.464, p=0.004). Conclusion : We found possible risk and protective psychosocial factors of underlying depressive/anxiety symptoms among patients with DM. Our findings suggest that enhancing ego resilience and social support as well as decreasing social conflict would be crucial in the prevention and management of depressive/anxiety symptoms in patients with DM.

중학교 청소년에서 학교폭력행태와 자살사고와의 연관성

이선정(Sun-Jung Lee),양혜정(Hae-Jung Yang),김승곤(Seung-Gon Kim),윤형준(Hyung-Jun Yoon),서은현(Eun-Hyun Seo) 대한생물치료정신의학회 2022 생물치료정신의학 Vol.28 No.2

Objectives:This study aimed to investigate the prevalence of bullying behavior and its association with suicidal ideation among middle school students. Methods:This was a cross sectional study of a sample including 781 second grade middle school students(438 males and 343 females) in Gwang-ju metropolitan city. Information on bullying involvement, suicidal ideation and depressive/anxiety symptoms were collected using a self-administered questionnaire. Subjects were classified into subgroups of bully, victim, bully or victim, bully-victim, and witnessing. The data were analyzed using binary logistic regression analyses, adjusted for covariates. Results:The prevalence of bullying victimization, bullying perpetration, bullying witnessing and suicidal ideation were 26.5%, 24.5%, 21.6% and 26%, respectively. Suicidal ideation was positively correlated with bullying victimization, bullying perpetration, bullying witnessing. Using binary logistic regression analyses, the odds ratio of bully-victim group compared to non bullying involvement was 2.41, the highest among all groups. Conclusions:Our findings indicate that school bullying, victim, and witnessing are associated with suicidal ideation, especially in bully and victim group. In addition, it is essential to develop prevention strategies and interventions for adolescents involved in any bullying involvement.

대학생들의 수면의 질과 우울증상과의 관계

정수현(Soo Hyun Jung),박정현(Jung Hyun Park),윤형준(Hyung Jun Yoon),김정호(Jung Ho Kim),김남철(Nam Cheol Kim),김상훈(Sang Hoon Kim) 대한생물치료정신의학회 2018 생물치료정신의학 Vol.24 No.3

Objectives:The aim of study was to estimate the prevalence of poor sleep quality and depressive symptoms as well as to examine the moderating effect of positive psychology on the relationship between poor sleep quality and depressive symptoms among Korean university students. Methods:A total of 2,338(1,071 male and 1,267 female) university students at seven universities of four cities in Korea were randomly selected to participate in a survey. Data were collected by self-report questionnaires, including Pittsburgh Sleep Quality Index(PSQI), Beck Depression Inventory(BDI), Satisfaction with Life Scale(SWLS), Positive Psychotherapy Inventory(PPTI), and sociodemographic characteristics. Results:The prevalence was 44.8% for poor sleep quality and 14.4% for depressive symptoms among Korean university students. By moderated regression analysis, the results showed that poor sleep quality(β=0.453, p<0.001) aggravated depressive symptoms of university students, and life satisfaction(β=-0.087, p<0.001) and happiness(β=-0.145, p<0.001) respectively buffered the negative effect of the poor sleep quality on depressive symptoms. Conclusion:This study showed very high prevalence of poor sleep quality and depressive symptoms among Korean university students. Overall, these findings demonstrates that positive psychology can be effective in the enhancement of subjective and psychological well-being and may help to reduce depressive symptom levels. In the context of public health, positive psychology can be used as preventive, easily accessible and non-stigmatizing tools.