• International Journal of Quality Innovation
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• 제9권2호
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• pp.57-77
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• 2008

The $21^{st}$ century is a new century of environmental protection. Environmental protection is one of the most important subject matters yet to come. Moreover, as the public pays more attention to environmental problems, enterprises should increase their investment in environmental management. Therefore, determining the investment level for environmental management and allocating the investment to associated environmental management activities has become a major task. The principal and agent theory and sales response functions are used for analysis in this research. The allocation of capital investment in environmental management is found to have significant impact on the aggregate sales response, aggregate profit and investment level. Therefore, in preparing the budget for environmental management, enterprises should focus on investment allocation decisions, determine the investment level and allocation method using integrated means, and apply submarket data in the allocation decision-making process. In other words, in setting the investment level, executive management should take managers' willingness into consideration. In allocating capital investment, managers should identify the optimal allocation method based on submarket characteristics.

• Journal of Korean Biological Nursing Science
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• 제17권3호
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• pp.219-227
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• 2015

Purpose: This study was conducted to review physiological mechanisms of internet addiction and to construct a theoretical framework for cognitive behavioral therapy for internet addicts. Methods: We searched for relevant literature in the PubMed and RISS databases using the terms "internet addiction", "internet game addiction", "internet abuser", and "online game". Only English, full-text articles published from 2000 to 2015 were included in this review of physiological indicators of internet addiction. Finally, 12 articles were selected for review. Results: The theoretical framework developed based on the review proposes that excessive internet use itself may induce physiological stress responses with an increase of stress-related hormones and neurotransmitters. Prolonged abnormal responses of these physiological features produce negative structural and functional changes in the prefrontal cortex, which is mainly involved in cognitive and executive functions. These changes may result in decreased cognitive function. As a stressor, excessive internet use leads to transforming voluntary use into involuntary, habitual use and thus promotes the development of internet addiction. Conclusion: The proposed theoretical framework encompasses cognitive processes that may contribute to the effects of internet use-induced physiological stress on internet addiction. We believe that this framework has important implications for developing cognitive behavioral strategies for internet addicts.

• 성인간호학회지
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• 제27권6호
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• pp.707-717
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• 2015

Purpose: This study was to develop and verify the effects of the exercise-cognitive combined dual-task training program on cognitive function and depression of the elderly with mild cognitive impairment (MCI). Methods: A non-equivalent control group pretest-posttest design was used. The participants were assigned into two groups: an experimental group receiving an exercise-cognitive combined dual-task (n=20) and a control group receiving a simple-task (n=18). After 8 weeks of intervention (2 days per week), the change in depression and cognitive functions were compared between the groups. Results: General cognitive function (t=-2.81, p=.011), frontal cognitive function (Z=-3.50, p<.001), attention/working memory function (U=-2.91, p=.004), depression (t=4.96, p<.001) of the experimental group were significantly increased than those of the control group. Conclusion: The findings of the study showed that an exercise-cognitive combined dual-task program for MCI was effective in improving general cognitive function, frontal and executive function, attention/working memory function, and reducing depression.

• 성인간호학회지
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• 제26권1호
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• pp.34-45
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• 2014

Purpose: The purpose of this study was to investigate the effect of laughter therapy and cognitive reinforcement program on self-efficacy, depression and cognitive functions of the elderly with mild cognitive impairments (MCI). Methods: The study design was a non-equivalent control group pre and posttest design. Thirty-six subjects over the age of 65 with a diagnosis of mild cognitive impairment were assigned either to a treatment or a comparison group. Data were collected from February 7 to March 27, 2012 in the dementia supporting center. An eight week treatment program that included laughter therapy coupled with a cognitive reinforcing program including hand exercise, laughter dance routine, laughter technic and cognitive training for attention, memory, orientation and execution skill. Results: MoCA-K (t=-6.86, p<.001) and Stroop test CW correct (t=-2.54, p=.008), self-efficacy (t=-3.62, p=.001) in the treatment group were significantly higher than those of the comparison group. Reported depression (t=2.29, p=.014), Stroop test CW error (U=53.50, p<.001) in the treatment group was significantly less than the comparison group. Conclusion: In this study, the treatment was effective in improving self-efficacy, cognitive function and reducing depression in the elderly with MCI.

• 한국비블리아학회지
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• 제14권2호
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• pp.97-117
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• 2003

미국의 '국가문헌정보학위원회'(NCLIS)와 영국의 '도서관ㆍ정보위원회'(LIC) 그리고 이 기구가 통합ㆍ개편된 '박물관ㆍ기록보존소·도서관위원회'(Resource)의 기능ㆍ조직구성 ·활동 등을 분석하였다. 분석 결과, 별도 법률에 의거한 대통령 직속의 독립기관인 미국의 NCLIS는 관련 정부기관과 의회에 대한 강력한 자문기능을 수행함으로써, 정부정책의 집행기능을 담당하는 IMLS와 함께 미국 도서관ㆍ정보서비스 향상의 견인 역할을 하고 있다. 또한 영국의 LIC와 Resource는 문화ㆍ매체ㆍ체육부 산하의 위원회임에도 불구하고, 정부 재정부담에 의거한 활발한 정책연구와 자문활동을 통해 영국 도서관 발전에 크게 기여하고 있음을 밝힘으로써, 우리나라 자문기구의 법제화에 시사점을 제시하고자 하였다.

• Journal of the Korean Academy of Child and Adolescent Psychiatry
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• 제23권2호
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• pp.49-56
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• 2012

Methylphenidate is a widely used stimulant for treatment of attention-deficit hyperactivity disorder (ADHD). In addition to core symptoms of attention and behavioral symptoms, methylphenidate is even effective for executive functions. However, abuse and misuse of stimulants, including methylphenidate, for the purpose of cognitive enhancement is an issue of concern worldwide. Some prejudices and misunderstandings against methylphenidate are popular ; however, little attention has been given to the neuropsychiatric evidence of methylphenidate for enhancement of cognitive function among healthy populations. In this article, our aim was to conduct a review of previous studies investigating the effect of methylphenidate in healthy populations. Findings from several recent studies have demonstrated the effectiveness of methylphenidate for enhancement of cognitive function in healthy populations. The mechanisms of cognitive enhancement are thought to be associated with motivation and the reward circuit in the brain. However, when considering the risk to benefit, an official discussion of the use of methylphenidate among healthy members of the population would be premature. Instead, investigation of epidemiological studies of the prevalence of misuse of stimulants among healthy members of the population, particularly adolescents and college students, is needed. In addition, based on achievements reported in previous studies, investigation of the effect of an approach using non-pharmacological enhancing motivation, which will in turn result in increased cognitive function would be helpful.

• Physical Therapy Rehabilitation Science
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• 제10권4호
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• pp.493-502
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• 2021

Objective: Older adults with mild cognitive impairment (MCI) are more likely to progress to dementia. Motor-cognitive training is applied as a dual-task to improve the cognitive and physical functions of older adults with MCI. The purpose of the study was to know the recent trends in motor training types and outcome measures used for motor-cognitive training in older adults with MCI. Design: Aliterature review Methods: This literature review was conducted in Pubmed, MEDLINE® and Google Scholar with the following key words: older adults, mild cognitive impairment, motor-cognitive training, cognition, and dual-task. The 7 studies were found with the search tool and all studies were randomized controlled trials. Results: In motor-cognitive training in older adults with MCI, 6 studies applied aerobic exercise. And 3 out of 6 studies also applied strengthening exercises. One study applied dual tasks without aerobic exercise. In the 6 studies, overall cognitive and executive function were used as outcome measures, and physical function was evaluated as gait performance. Memory and physical frailty were also used as measurement tools. As a result of all studies, when motor-cognitive training was applied, cognition and physical performance showed significant results. Conclusions: A recent five-year study applied mainly aerobic exercise and strength training to older adults with MCI and found it to improve cognitive and physical performance.

• Clinical Psychopharmacology and Neuroscience
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• 제16권4호
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• pp.481-488
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• 2018

Preliminary studies have claimed that short term fasting would negatively affect school performance and cognition. In contrast some other studies have reported not important decline in cognition and executive function as a result of fasting. Also limited attention was generally devoted to dietetic regimens, nutritional status and body weight. Yet neuroscience and neuro-cognitive aspects of acute hunger on the electroencephalogram and differences between obese and non-obese cases is not well understood. Hence, we decided to design and perform a case study in a more controlled situation similar to reality. Therefore, we performed several examinations including subjective tests (for eating status) and objective tests (cognitive tests such as Stroop effect and Sternberg search and electroencephalogram measures such as steady-state visual evoked potential and auditory steady-state responses) for an obese and a non-obese academic case before and after a simple breakfast. The results showed that the breakfast effects on the neuro-cognitive functions depend on either obesity status, nutritional status of the case or the type of cognitive task (visual or auditory). This paper would open a new insight to answer some important questions about the neuro-cognitive implications of fasting and feeding in obese and non-obese human cases.

• International journal of advanced smart convergence
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• 제12권2호
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• pp.159-166
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• 2023

Due to the aging workforce in the construction industry in South Korea, the accident rate has been increasing. The cognitive abilities of older workers are closely related to both safety incidents and labor productivity. Therefore, there is a need to improve cognitive abilities through personalized training based on cognitive assessment results, using cognitive training content, in order to enable safe performance in labor-intensive environments. The provided cognitive training content includes concentration, memory, oreintation, attention, and executive functions. Difficulty levels were applied to each content to enhance user engagement and interest. To stimulate interest and encourage active participation of the participants, the difficulty level was automatically adjusted based on feedback from the MMSE-DS results and content measurement data. Based on the accumulated data, individual training scenarios have been set differently to intensively improve insufficient cognitive skills, and cognitive training programs will be developed to reduce safety accidents at construction sites through measured data and research. Through such simple cognitive training, it is expected that the reduction of accidents in the aging construction workforce can lead to a decrease in the social costs associated with prolonged construction periods caused by accidents.

• Journal of the Korean Academy of Child and Adolescent Psychiatry
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• 제13권1호
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• pp.139-152
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• 2002

연구 목적：ADHD 아동을 대상으로 DSM-Ⅳ 진단기준을 이용하여 세 아형으로 분류한 후, 임상적 특징과 신경심리학적 차이를 비교하고자 본 연구를 시행하였다. 방 법：연구는 1998년 7월부터 2001년 7월까지 주의력결핍 증상을 주소로 영남대학교 부속병원 정신과를 내원하여 ADHD로 진단된 6~15세 아동을 대상으로 하였고, 신경정신과적 공존질환이나 신경학적 이상이 있는 아동은 배제하여 총 404명으로부터 자료를 얻었다. DSM-Ⅳ 진단기준을 사용하여 아형으로 분류하였고, ADHD-C형이 234명(57.9%), ADHD-Ⅰ형이 156명(38.6%), ADHD-HI형이 14명(3.5%)이었다. 평균 연령은 9.63±2.49세였다. 약물치료 시작 전에, 정신병리평가, 지능 평가, 행동증상평가, 신경심리학적 실행기능에 대해 각각 평가를 하였다. 평가도구로는 정신병리를 평가하기 위해 한국아동인성검사(K-PIC)를, ADHD행동증상을 평가하기 위해 4종의 설문지형 평가도구인 한국판 주의력결핍장애 평가척도-가정판(ADDES-HV), ADD-H comprehensive teacher’s rating scale(ACTeRS), 한국형 소아기 집중력 문제척도(CAP)와 SNAP을 이용하였다. 지능은 K-ABC와 KEDI-WISC로 평가하였고, 주의력 및 실행기능검사는 Conner의 연속수행검사(CPT), 위스콘신분류검사(WCST), 정지신호검사(SST)를 사용하였다. 결 과：세 아형 별 비교에서 ADHD-C형이 가장 많았고 ADHD-Ⅰ, ADHD-HI 순 이었다. 아형간 남녀성별에 따른 유병율 차이는 보이지 않았다. 연령은 ADHD-Ⅰ형이 가장 높았다(p<.001). 정신병리평가에서 비행 과잉행동 정신증 점수는 ADHD-C형과 ADHD-HI형이 ADHD-Ⅰ형보다 높게 나타났고(p<.05), ADHD-C형에서 가족관계의 문제와 자폐증 점수가 ADHD-Ⅰ형보다 높게 나타났으며(p<.05), 자아탄력성 점수는 ADHD-Ⅰ형 보다 낮았다(p<.05). 불안, 우울, 신체화 증상은 세 아형간 차이를 보이지 않았다. 아형별 행동증상측정 결과 ADHD-C형이 ADHD-Ⅰ형보다 주의력결핍, 과잉행동, 충동성 점수가 더 높게 나타났다(p<.05). 단, 교사가 평가하는 ACTeRS에 의한 결과는 ADHD-HI형에서 주의력 결핍 증상과 과잉행동점수가 더 높았다(p<.05). 아형간 지능의 비교에서는 K-ABC를 이용한 평가에서 ADHD-HI 형이 순차처리항목과 계산능력에서 유의하게 높았고(p<.05), KEDI-WISC를 이용한 평가에서는 ADHD- HI형은 대상수가 소수여서 비교할 수 없었으며, ADHD-C형과 ADHD-Ⅰ형 사이에 유의한 차이는 보이지 않았다. CPT, WCST, SST를 이용한 신경심리학적 실행기능의 비교에서 아형간 계량적인 차이는 있었으나 통계적으로 유의한 차이는 보이지 않았다. 결 론：결론적으로 ADHD 세 아형은 임상적으로 뚜렷한 차이를 보였지만, 실행기능상 유의한 차이를 발견할 수 없었다. 향후 보다 잘 고안 된 연구와 발달중인 아동에 적절한 신경심리 평가 도구의 개발을 통해 결과를 보완해야 할 것으로 사료된다.