• (The) Research of the performance art and culture
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• no.42
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• pp.5-22
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• 2021

This work shows the possibility of expansion of existing interpretations through anxiety. They were continuing their previous misbehavior in the name of science. Such a phenomenon is due to the selection of their desires. So they were appearing in violent forms. Audiences who see the scene will be able to choose the opposite realization or action. It can shake the audience mentally. Therefore, this performance represents the anxiety of this period and motivates the audience to take a new action.

• Journal of the Korean Society for Library and Information Science
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• v.44 no.4
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• pp.353-371
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• 2010

Library anxiety has been recognized as one of the representative fields that concerns user's affectivity in library and information study. Considerable library users have been discovered to experience library anxiety according to researches. Although digital libraries are becoming more popular changing drastically from traditional libraries, few studies have addressed the measurement of digital library anxiety(DLA). The purpose of this study is to develop and validate a multidimensional digital library anxiety scale(DLAS) based on previous research in library anxiety and digital libraries. It will become possible to define the construct of DLAS, provide its underlying dimensionalities, and find out how much they explain the construct. Through the exploratory factor analysis, DLAS has been developed with 39 items representing seven distinct factors which were interpreted as affect, resources, know-how, security, language, technology, and task explaining 51.165% of DLA. Also, DLAS' characteristics about demographic variables and use pattern were found through the T-test and ANOVA analysis for each factor.

• Journal of the Korean BIBLIA Society for library and Information Science
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• v.31 no.1
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• pp.21-42
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• 2020

This study aimed to analyze library anxiety among international users in various aspects and make suggestions for alleviating library anxiety. Subjects were 'international users using the academic library' not only including international students but also including international professors and researchers to analyze library anxiety in various aspects. S university with most international users was selected for the study, and the surveys were distributed. The questionnaires completed by 369 international users were analyzed. The overall average of library anxiety among international users is 2.96, and 'knowledge of the library' appears to be the greatest source of library anxiety among international users. An analysis revealed that variables including status, nationality, library instruction, the reason for using the library, Korean proficiency, and cultural understanding contributed significantly to the library anxiety level. Based on these findings, recommendations for library service, staffing, environment, and resources were made to help alleviate library anxiety.

• Journal of the Korean Academy of Child and Adolescent Psychiatry
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• v.16 no.1
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• pp.124-131
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• 2005

Childhood and adolescent onset-bipolar disorders have higher rate of comorbidity with anxiety disorders as well as attention deficit hyperactivity disorder and conduct disorder. Obsessive compulsive disorder, social phobia, panic disorder, and separational anxiety disorder are common comorbid anxiety disorders with bipolar disorders in child and adolescent. Prospective and reliable data on temporal and causal relationship between the onset of bipolar disorders and the onset of comorbid anxiety disorders are still in debate. The authors report 2 adolescent cases with antidepressant induced-manic episodes with preceding anxiety symptoms. The authors suggest careful prescription of antidepressants for anxiety disorders, even for those who do not have definite past history or family history of bipolar disorders. Further comprehensive and prospective studies are requested for the temporal relationship and pharmacological guideline for comorbid bipolar disorders and anxiety disorder in child and adolescent.

• 한국전산유체공학회:학술대회논문집
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• 2008.03b
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• pp.424-427
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• 2008

The longitudinal instability (POGO) of the rocket should not be occurred during the whole flight time for the large class liquid propulsion system to complete a mission successfully. The longitudinal instability is caused by the resonance between the propulsion system and rocket structure in the low frequency range below 50Hz, ordinarily. We can consider various types of propulsion system in the early stage of rocket development. So the longitudinal instability analysis tool is needed for corresponding to each propulsion system. This article deals the generalized method applied to the analysis on the low frequency dynamic characteristics of various types of liquid propulsion system.

• Anxiety and mood
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• v.12 no.2
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• pp.97-102
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• 2016

Objective : This study aimed to quantify the degrees of insomnia, depression and anxiety felt by employees, and to understand which components of insomnia affect depression and anxiety. Methods : One thousand employees who had medical checkups from January to December 2014 in the Workplace Mental Health Institute of Kangbuk Samsung Medical Center were selected randomly. Sleep quality, depression, and anxiety were rated using the Pittsburgh Sleep Quality Index (PSQI), the Center for Epidemiologic Studies Depression scale (CES-D), and the Beck Anxiety Inventory (BAI), respectively. Good and poor sleepers were divided into two groups according to their total PSQI score : ${\leq}5$ for good sleepers or >5 for poor sleepers. Results : Of 998 employees, 742 (74.35%) had PSQI total scores below 5, and 256 (25.65%) had scores over 5. Multivariate linear regression analysis using the 7 components of PSQI versus BAI, and CES-D scores revealed that subjective sleep quality, daytime dysfunction, sleep disturbance, sleep latency and sleep duration components were significantly associated with both BAI and CES-D. Conclusion : Among the components of insomnia, subjective sleep quality and daytime dysfunction were most strongly associated with depression and anxiety.

• Korean Journal of Psychosomatic Medicine
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• v.15 no.1
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• pp.14-21
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• 2007

Premenstural dysphoric disorder(PMDD) imposing 4-5% of women is possibly caused by an enhanced responsiveness to the changes of sex steroid hormones and the decrease of serotonin, melatonin and GABA. The common clinical features between PMDD and depression, seasonal affective disorder, panic disorder and anorexia nervosa suggest a relatedness between PMDD and each of them. The diagnostic criteria of DSM-IV-Tr for PMDD requires psychological symptoms, that commonly include irritability, anger, depression, mood swing, affect lability, tension, anxiety, fatigue and food craving. As of today, the best pharmacological treatment for PMDD is the selective serotonin reuptake inhibiter, and leuprolide, danazol, estradiol, spironolactone and bromocriptine are possible alternatives. Nonpharmacological treatments for patients with mild to moderate symptom severity are diet, exercise, light therapy, psychotherapy and keeping a diary.

• 기계와재료
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• v.25 no.3
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• pp.92-105
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• 2013

전 세계는 지구온난화와 고유가시대를 맞이하여 배출가스 규제에서 온실가스와 연비 규제로 확대되면서 그린카라는 새로운 용어가 등장하였다. 원유 고갈과 원전 불안으로 수송연료에도 신재생 에너지와 세일가스 등장에 큰 기대를 걸고 있으며, 새로운 에너지원을 사용하는 전기자동차와 수소연료전지 자동차의 개발도 활발이 진행되고 있으나 자동차시장의 형성은 각종 규제의 만족은 물론이고 경제성, 안전성, 편리성 등이 수반되어야 한다. 향후 세계 자동차시장은 에너지의 수급 사정과 시대의 요구 조건에 따라 크게 좌우되므로 각 국가별 여건을 고려하여 단계를 구분해서 그 시대에 가장 적합한 그린카 차종이 무엇인지를 신중하게 분석하여 산업화 정책을 추진해야 할 것이다. 이러한 관점에서 최근 기계연구원이 주축이 되어 개발하여 운행 중인 디젤하이브리드 자동차를 중심으로 세계 그린카 개발동향을 소개하고자 한다.

• Journal of the Korean Society of Propulsion Engineers
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• v.5 no.4
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• pp.75-82
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• 2001

KSR-III propulsion feeding system is designed to feed a certain amount of propellant to engine by the end of combustion. The oscillation of propellant to engine would cause combustion instability and thrust oscillation and POGO phenomenon. This article deal with analysis performed such as the effect of rocket acceleration on the propulsion system and POGO analysis to ensure the performance of KSR-III

• Journal of the Korean Academy of Child and Adolescent Psychiatry
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• v.9 no.1
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• pp.54-66
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• 1998

Objectives：This study was to investigate the impact of parental psychiatric disorder on offspring's depression, anxiety, self concept, perception of familial relationship compared with offspring of normal control. In offsprings of parents with psychiatric disorder, this study explored whether their psychopathology, self concept, and perception of familial relationship were influenced by parent’s sex, onset time of parent’s psychiatric disorder and parent’s psychiatric diagnosis. Methods：52 offsprings aged 10-18 years of 39 psychiatric outpatient were surveyed from June, 1997 to April, 1998 and completed several questionnaaire, including Korean from of the Family Environment Scale, Korean form of the State-Trait Anxiety Inventory for Children, Korean form of Kovac’s Children’s Depression Inventory, and Korean form of Piers-Harris Children’s Self-Concept Scale. Their score was compared with offsprings’ of normals. In offsprings of parents with psychiatric disorder, they were compared according to parent’s sex, onset time of parent's psychiatric disorder and parent’s psychiatric diagnosis. Results：The results were as follows：1) Offsprings of parents with psychiatric disorder reported higher level of state anxiety and lower level of the FES expressive subscale than offsprings of normals(p<0.05). But they reported higher level of PHCSCS intellectual & school status subscale and popularity subscale than normals(p<0.05). 2) There were no differences in anxiety, depression, self concept, and perception of familial relationship between patient’s sex. 3) Offsprings less than 3 years old when parent’s psychiatric disorder had developed showed higher level of trait anxiety and lower level of FES control subscale than offsprings more than 3 years old (p<0.05). 4) There were no diferences in anxiety, depression, self concept, and perception of familial relationship between patient’ diagnostic groups(schizophrenia spectrum disorder-mood disoderneurosis). Conclusion：The finding indicated that self reported scale of anxiety and depression showed no significant difference between offsprings of psychiatric patients and offsprings of normals. In offsprings of parents with psychiatric disorder, parent’s sex and psychiatiric diagnosis had no influence on offspring’s psychopathology. But the offspring’s age(before 3 years old) when the parent’s psychiatriric disorder developed had influence on higher level of offspring’s trait anxiety. For further high risk group study, direct interview and evaluation of parent-child agreement or teacher-child agreement will be needed in longitudinal study.