• 사회복지연구
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• 제45권2호
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• pp.233-261
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• 2014

본 연구에서는 국내 성인의 자아존중감과 우울의 인과관계를 살펴보는데 목적을 두고, 한국복지패널 1~4차 데이터를 활용하여 인과관계를 설명할 수 있는 인지취약모델과 상처모델을 검증하였다. 또한 우울과 자아존중감의 변화궤적에 영향을 미치는 인구사회학적 변인을 파악함으로써 우울과 자아존중감 손상에 취약한 인구집단을 밝히고자 하였다. 분석결과 우울의 초기값이 자아존중감 변화율에 미치는 영향과 자아존중감 초기값이 우울 수준 변화율에 미치는 영향이 모두 유의하게 나타나 외국 연구와는 달리 국내 성인집단에서는 인지취약모델과 상처모델이 모두 지지되는 것으로 밝혀졌다. 또한 이 상호관계는 인구사회학적 요인을 통제한 상태에서도 지지되었으며, 우울의 변화궤적과 자아존중감의 변화궤적 모두에 유의한 영향을 미치는 요인으로는 교육수준, 빈곤여부, 만성질환 여부 및 사회적 관계 만족도로 나타났다. 본 연구는 아직까지 연구되지 않은 성인기 집단의 우울과 자아존중감 관계의 매커니즘을 밝혔다는데 의의가 있으며, 논의를 통해 우울 예방 및 치료에 대한 실천적 함의를 제안하였다.

• 대한간호학회지
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• 제49권4호
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• pp.375-385
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• 2019

Purpose: This study aimed to develop and test a structural model for chemotherapy-related cognitive impairment of breast cancer patients based on a literature review and Hess and Insel's chemotherapy-related cognitive change model. Methods: The Participants consisted of 250 patients who were ${\geq}19$ years of age. The assessment tools included the Menopause Rating Scale, Symptom Experience Scale, Hospital Anxiety and Depression Scale, Everyday Cognition, and Functional Assessment of Cancer Therapy-Breast Cancer. Data were analyzed using the SPSS 21.0 and AMOS 21.0 programs. Results: The modified model was a good fit for the data. The model fit indices were ${\chi}^2=423.18$ (p<.001), ${\chi}^2/df=3.38$, CFI=.91, NFI=.91, TLI=.89, SRMR=.05, RMSEA=.09, and AIC=515.18. Chemotherapy-related cognitive impairment was directly influenced by menopausal symptoms (${\beta}=.38$, p=.002), depression and anxiety (${\beta}=.25$, p=.002), and symptom experiences (${\beta}=.19$, p=.012). These predictors explained 47.7% of the variance in chemotherapy-related cognitive impairment. Depression and anxiety mediated the relations among menopausal symptoms, symptom experiences, and with chemotherapy related cognitive impairment. Depression and anxiety (${\beta}=-.51$, p=.001), symptom experiences (${\beta}=-.27$, p=.001), menopausal symptoms (${\beta}=-.22$, p=.008), and chemotherapy-related cognitive impairment (${\beta}=-.15$, p=.024) had direct effects on the quality of life and these variables explained 91.3%. Conclusion: These results suggest that chemotherapy-related toxicity is highly associated with cognitive decline and quality of life in women with breast cancer. Depression and anxiety increased vulnerability to cognitive impairment after chemotherapy. Nursing intervention is needed to relieve chemotherapy-related toxicity and psychological factor as well as cognitive decline for quality of life in patients undergoing chemotherapy.

• 대한불안의학회지
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• 제7권1호
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• pp.3-8
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• 2011

Cognitive models of panic disorder have emphasized cognitive distortions' roles in the maintenance and treatment of panic disorder (PD). However, the patient's difficulty with identifying and managing emotional experiences might contribute to an enduring vulnerability to panic attacks. Numerous researchers, employing emotion processing paradigms and neuroimaging techniques, have investigated the empirical evidence for poor emotion processing in PD. For years, researchers considered that abnormal emotion processing in PD might reflect a dysfunction of the frontal-temporal-limbic circuits. Although neuropsychological studies have not provided consistent results regarding this model, a few studies have tried to find the biological basis of dysfunctional emotion processing in PD. In this article, we examine the possibility of dysregulation of emotion processing in PD. Specifically we discuss the neural basis of emotion processing and the manner in which such neurocognitive impairments may help clarify PD's core symptoms.

• 성인간호학회지
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• 제14권2호
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• pp.276-286
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• 2002

Purpose: The concept of embarrassment as an unpleasant emotion is important in caring for those who are in the continuum of illness and health requiring body care and facing sexual problems. In spite of its nursing implication, embarrassment has not been focused in nursing research. Therefore, the purpose of this paper is to develope a conceptual analysis of embarrassment. This analysis would help to understand comprehensively an embarrassing situation in which an intimate relationship between nurse and patient regarding body care of the patient could develope. Futhermore, it would be a basis for developing strategies for prevention of embarrassment which could lead for both patient and nurse to emotionally vulnerable situation because of their failure of self-presentation (impression management). Method: The concept analysis model suggested by Walker and Avant (1988) is used to clarify what is meant by the term 'embarrassment'. Result: This analysis defines the attributes of embarrassment such as follows. First, embarrassment is often attributed to situational factors interrupting a smooth interaction such as intimacy, confusion, vulnerability, exposure of interaction and characteristics of audience. Second, embarrassment is closely related with cognitive factor such as fear of losing face resulted from a behaviour being out of line. Third, embarrassment is closely associated with dispositional factor such as embarrassability. Fourth, embarrassment is an unpleasant and unwanted emotion arising reactively after an interaction had occurred. Fifth, embarrassment encloses physical, physiological and behavioral aspects such as a variety of unique and easily noticeable reactions and a pattern of verbal and non-verbal behaviour for coping in an embarrassing situation. The antecedents were normally socialized adolescents with normal cognitive ability, concern of losing face, embarrassability, embarrassing events related with situational intimacy, confusion, vulnerability, exposure of interaction and characteristics of audience, physical, behavioral blunders resulting in a failure of impression management. The consequences were an emotional coping behaviour, audience's embarrassment responses, and verbal and non-verbal coping strategies of interactional participants. Conclusion: It is hoped that this analysis will stimulate further exploration of this concept and study for developing systematic assessment and nursing practice that diminishes embarrassment of interactional participants.

• Molecules and Cells
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• 제41권8호
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• pp.742-752
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• 2018

Parkinson's disease (PD) is a neurodegenerative disease characterized by progressive degeneration of dopaminergic (DAergic) neurons, particularly in the substantia nigra (SN). Although circadian dysfunction has been suggested as one of the pathophysiological risk factors for PD, the exact molecular link between the circadian clock and PD remains largely unclear. We have recently demonstrated that $REV-ERB{\alpha}$, a circadian nuclear receptor, serves as a key molecular link between the circadian and DAergic systems. It competitively cooperates with NURR1, another nuclear receptor required for the optimal development and function of DA neurons, to control DAergic gene transcription. Considering our previous findings, we hypothesize that $REV-ERB{\alpha}$ may have a role in the onset and/or progression of PD. In the present study, we therefore aimed to elucidate whether genetic abrogation of $REV-ERB{\alpha}$ affects PD-related phenotypes in a mouse model of PD produced by a unilateral injection of 6-hydroxydopamine (6-OHDA) into the dorsal striatum. $REV-ERB{\alpha}$ deficiency significantly exacerbated 6-OHDA-induced motor deficits as well as DAergic neuronal loss in the vertebral midbrain including the SN and the ventral tegmental area. The exacerbated DAergic degeneration likely involves neuroinflammation-mediated neurotoxicity. The $REV-erb{\alpha}$ knockout mice showed prolonged microglial activation in the SN along with the over-production of interleukin $1{\beta}$, a pro-inflammatory cytokine, in response to 6-OHDA. In conclusion, the present study demonstrates for the first time that genetic abrogation of $REV-ERB{\alpha}$ can increase vulnerability of DAergic neurons to neurotoxic insults, such as 6-OHDA, thereby implying that its normal function may be beneficial for maintaining DAergic neuron populations during PD progression.

• Asia pacific journal of information systems
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• 제18권4호
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• pp.1-26
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• 2008

Rapid progress of information technology and widespread use of the personal computers have brought various conveniences in our life. But this also provoked a series of problems such as hacking, malicious programs, illegal exposure of personal information etc. Information security threats are becoming more and more serious due to enhanced connectivity of information systems. Nevertheless, users are not much aware of the severity of the problems. Using appropriate password is supposed to bring out security effects such as preventing misuses and banning illegal users. The purpose of this research is to empirically analyze a research model which includes a series of factors influencing the effectiveness of passwords. The research model incorporates the concept of risk based on information systems risk analysis framework as the core element affecting the selection of passwords by users. The perceived risk is a main factor that influences user's attitude on password security, security awareness, and intention of security behavior. To validate the research model this study relied on questionnaire survey targeted on evening class MBA students. The data was analyzed by AMOS 7.0 which is one of popular tools based on covariance-based structural equation modeling. According to the results of this study, while threat is not related to the risk, information assets and vulnerability are related to the user's awareness of risk. The relationships between the risk, users security awareness, password selection and security effectiveness are all significant. Password exposure may lead to intrusion by hackers, data exposure and destruction. The insignificant relationship between security threat and perceived risk can be explained by user's indetermination of risk exposed due to weak passwords. In other words, information systems users do not consider password exposure as a severe security threat as well as indirect loss caused by inappropriate password. Another plausible explanation is that severity of threat perceived by users may be influenced by individual difference of risk propensity. This study confirms that security vulnerability is positively related to security risk which in turn increases risk of information loss. As the security risk increases so does user's security awareness. Security policies also have positive impact on security awareness. Higher security awareness leads to selection of safer passwords. If users are aware of responsibility of security problems and how to respond to password exposure and to solve security problems of computers, users choose better passwords. All these antecedents influence the effectiveness of passwords. Several implications can be derived from this study. First, this study empirically investigated the effect of user's security awareness on security effectiveness from a point of view based on good password selection practice. Second, information security risk analysis framework is used as a core element of the research model in this study. Risk analysis framework has been used very widely in practice, but very few studies incorporated the framework in the research model and empirically investigated. Third, the research model proposed in this study also focuses on impact of security awareness of information systems users on effectiveness of password from cognitive aspect of information systems users.

• 한국융합학회논문지
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• 제10권5호
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• pp.9-16
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• 2019

본 논문에서는 딥러닝 기술이 인터넷과 연결된 다양한 비즈니스 분야에 새로운 형태의 비즈니스 업무에 활용할 수 있도록 보안에 관한 문제점을 분석하고자 한다. 우선 딥러닝이 비즈니스 영역에 보안 업무를 충분히 수행하기 위해서는 많은 데이터를 가지고 반복적인 학습을 필요하게 된다. 본 논문에서 딥러닝이 안정적인 비즈니스 보안 업무를 완벽하게 수행할 수 있는 학습적 능력을 얻기 위해서는 비정상 IP패킷에 대한 탐지 능력과 정상적인 소프트웨어와 악성코드를 탑재하여 감염 의도를 가지고 접근하는 공격을 탐지해낼 수 있는 인지 능력을 갖추고 있는지를 분석하였다. 이에 본 논문에서는 인공지능의 딥러닝 기술이 시스템에 접근하여 문제의 비즈니스 모델을 안정적으로 수행할 수 있게 하기 위해서는 시스템내의 비정상 데이터를 추출해 내고 시스템 데이터 침해를 구분해 낼 수 있는 수학적 역할의 문제점을 보완하기 위해 새로운 IP에 대한 세션 및 로그 분석을 수행할 수 있도록 보안 엔진이 탑재된 딥러닝 기술을 개발하여 비즈니스 모델에 적용시켜서 취약점을 제거하여 비즈니스 업무 능력을 향상시키도록 문제적 방안을 비교 분석하였다.

• 한국ITS학회 논문지
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• 제21권6호
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• pp.87-96
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• 2022

고령보행자를 포함한 교통약자는 신체적 능력이 저하되어 보행속도가 상대적으로 낮으며, 인지반응시간이 느린 특성을 가지고 있지만, 현재 교통약자를 위한 보행신호는 0.8m/s로 일률적으로 적용하고 있다. 문제점을 개선하기 위하여 스마트 횡단시스템이 개발되어 운영되고 있지만, 보행자별 적정 보행속도를 반영한 신호운영이 이루어지지 못하고 있다. 본 연구에서는 교통약자비율이 높은 지역에서 수집된 영상정보를 활용하여, 교통약자의 종류, 보행자의 수, 도로의 기하구조 등을 고려한 신경망모형과 다중회귀모형기반의 횡단속도 추정모델을 개발하였다. 이를 통해 개발된 모델을 스마트횡단시스템에 적용하여 실시간 교통약자에 따른 최적 보행신호 제공을 지원하고자 하였다. 경기도 파주시의 도시 교통 네트워크에서 수집된 실제 교통 상황 데이터 2,400개를 사용하였다. 모델의 성능은 상관계수, 평균 절대오차 등 7개의 선택된 지표를 통해 평가되었다. 다중선형회귀모델은 상관 계수가 0.652이고 MAE가 0.182였으며, 신경망모델은 상관계수가 0.823이고 MAE가 0.105로 나타나. 신경망모델이 더 높은 예측력을 보였다.

• 한국심리학회지 : 문화 및 사회문제
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• 제27권4호
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• pp.475-503
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• 2021

본 연구는 정서 표현의 억제 구인을 Kennedy-Moore & Watson의 정서 처리의 인지 평가모델에 따라 구체적으로 구분하여 정서 억제의 구성개념을 명료화하고 정서 억제의 다차원적 이해를 돕고자 하였다. 또한 정서 억제와 관련한 구성개념과 성차와 관련한 선행연구들의 이슈들을 종합하여 정서 억제를 성별 비교를 통해 살펴보고자 하였다. 이를 위하여 성인 남녀 657명을 대상으로 정서에 대한 태도, 감정표현 불능증, 정서 조절 곤란 척도와 우울, 분노, 일상적 스트레스 척도를 실시하였다. 정서 억제 요인과 관련한 척도들을 대상으로 탐색적 요인분석을 실시한 결과 KMW모델의 각 단계에 해당하는 정서 억제 요인들이 나타나 '정서적 정보에 대한 주의 어려움', '정서의 이해와 해석 어려움', '정서 통제 신념', '정서 표현 취약성 신념'으로 명명하였다. 다음으로 요인분석에서 나타난 각 정서 억제 요인을 기준으로 군집분석을 실시하여 연구참가자들을 분류하였다. 그 결과 4가지 군집이 추출되어 '정서 통제 신념 군집', '정서 표현 군집', '정서주의 실패 군집', '전반적 억제 군집'으로 명명하였다. 각 군집을 대상으로 우울, 분노, 일상적 스트레스의 평균차이를 검증한 결과, 모든 종속변수에서 유의한 차이가 나타났다. 또한 성별에 따른 정서억제 군집들의 빈도가 차이가 있는지 알아본 결과 남성에서는 전반적 억제 군집의 빈도가 높게 나타났으며, 여성에서는 정서표현 군집의 비율이 높게 나타났다. 마지막으로 정서 억제에 대한 네가지 군집이 심리 사회적 적응에 미치는 영향에서의 성차가 존재하는지 분석하였고, 본 연구 결과를 바탕으로 시사점을 논의하였다.