• Journal of the Korean Academy of Child and Adolescent Psychiatry
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• 제18권2호
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• pp.145-153
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• 2007

Objectives: This study was focused on the influence of chronic aircraft noise exposure on children's continuous performance, intelligence and reading skill. Methods: We enrolled 586 children in 4-6th grade of 7 primary schools near air base in Korea. Continuous performance was measured using the computerized ADS program. We analyzed 477-512 children on the visual continuous performance test, auditory continuous performance test, intelligence test, and reading and the vocabulary test. Intelligence was measured using vocabulary, digit span, block design, and digit symbol tests of K-WISC-III. Results: The commission error and variability deviation of auditory continuous performance test and reading test were significantly higher among children in schools with the helicopter noise and the fighting plane noise compared to children in the low noised schools. Conclusion: There was a possibility that chronic aircraft noise exposure was associated with impairment of the school performance. The result of our study also shows chronic aircraft noise was associated with reading ability.

• 생물정신의학
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• 제11권2호
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• pp.155-164
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• 2004

Objective:The present study examined the association between basic neurocognitive functions and emotional recognition in chronic schizophrenia. Furthermore, to Investigate cognitive variable related to emotion recognition in Schizophrenia. Methods:Forty eight patients from the Yongin Psychiatric Rehabilitation Center were evaluated for neurocognitive function, and Emotional Recognition Test which has four subscales finding emotional clue, discriminating emotions, understanding emotional context and emotional capacity. Measures of neurocognitive functioning were selected based on hypothesized relationships to perception of emotion. These measures included:1) Letter Number Sequencing Test, a measure of working memory;2) Word Fluency and Block Design, a measure of executive function;3) Hopkins Verbal Learning Test-Korean version, a measure of verbal memory;4) Digit Span, a measure of immediate memory;5) Span of Apprehension Task, a measure of early visual processing, visual scanning;6) Continuous Performance Test, a measure of sustained attention functioning. Correlation analyses between specific neurocognitive measures and emotional recognition test were made. To examine the degree to which neurocognitive performance predicting emotional recognition, hierarchical regression analyses were also made. Results:Working memory, and verbal memory were closely related with emotional discrimination. Working memory, Span of Apprehension and Digit Span were closely related with contextual recognition. Among cognitive measures, Span of Apprehension, Working memory, Digit Span were most important variables in predicting emotional capacity. Conclusion:These results are relevant considering that emotional information processing depends, in part, on the abilities to scan the context and to use immediate working memory. These results indicated that mul- tifaceted cognitive training program added with Emotional Recognition Task(Cognitive Behavioral Rehabilitation Therapy added with Emotional Management Program) are promising.

• 한방안이비인후피부과학회지
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• 제26권1호
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• pp.63-74
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• 2013

Objective : Low level laser therapy(LLLT) is conjugated many different diseases such as skin disease, nervous system disease, cardiovascular disease, etc. This study was tried to survey the conjugation of LLLT in field of ophthalmology, otolaryngology and dermatology of Korean Medicine. Methods : In this study, LLLT deal with the field of ophthalmology, otolaryngology and dermatology was searched at Pubmed and NDSL. We searched Pubmed and NDSL with the title "Laser Therapy and Low-Level" for the last 10 years and analyzed disease, laser type, sample size, effect, journal and year. Results : Using Pubmed and NDSL, 8 treatises were researched. About 8 treatises, 7 treatises were papers in field of dermatology, 1 treatise was ophthalmology. And about 8 treatises, 6 treatises were foreign papers and 2 treatises were domestic papers on clinical application of laser status. Mainly used type of laser was a He-Ne laser and Diode laser. The diseases were ocular hypertension, acne, ulcers in patients with leprosy sequelae, freckles, segmental-type vitiligo lesions, diabetes-linked skin lesion, facial skin melanin and elasticity, atopic dermatitis symptom. As a result, we found that treat group had more improvement than control group in 7 of the 8 treatises, that treat group had no difference control group on effect significantly only 1 treatise. Conclusions: As therapeutic tool, LLLT's application range is very wide in the field of ophthalmology, otorhinolaryngology, and dermatology. Keep up with the increasing interest of domestic and foreign about laser therapy, clinical tries on the use of laser will be studied steadily. It is necessary to have sustained attention and research on the point of view of the Korean Medicine.

• 생물정신의학
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• 제21권2호
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• pp.65-73
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• 2014

Objectives This study aimed to identify the differences and the profiles of cognitive deficits in remitted patients with schizophrenia and first-degree relatives of schizophrenic probands. Methods A total of 26 remitted states of schizophrenia patients were included in the study and the same number of unaffected first-degree relatives of schizophrenic probands and healthy controls were matched for age, sex, years of education. Cognitive function of all participants was measured by using the Digit span test, the Continuous performance test, the Rey auditory & visual learning test, the Complex figure test, the Verbal fluency test, the Wisconsin card sorting test and the Finger tapping test. The effects of subsyndromal symptomatology and general intelligence score were controlled. Results Schizophrenia patients' group showed more significant impairment than other groups in verbal memory (learning, immediate recall, delayed recall), visual memory (copy, immediate recall, delayed recall) and cognitive flexibility domains. The family group and the patient group commonly performed significantly worse than healthy controls in working memory and verbal fluency (category) tests. There were no differences in sustained attention, psychomotor performance. Conclusions Our research shows that the deficit in working memory and verbal fluency could be strong candidates of endophenotypic marker in schizophrenia.

• 대한후두음성언어의학회지
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• 제26권1호
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• pp.40-45
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• 2015

Objectives:This study aims to investigate the correlation between the measurements of Praat as an acoustic evaluation and those of GRBAS and CAPE-V as perceptual rating tool respectively. Through this, it also tries to find out parameters to which attention should be paid when an evaluator, who is untrained in auditory-perceptual voice evaluation, conducts voice evaluation with objective tool. Materials and Methods:Voice samples of this study were 33 vocal polyp patients(23 males and 10 females) who visited our Department of Otorhinolaryngology. They sustained vowel voices of 'e' were recorded and acoustically analyzed. Results:As the results of correlation analysis between GRBAS and Praat measurements, G scale and R scale showed statistically significant correlation with Jitt, Shim and NHR. And it is found that B scale represented significant correlation with Jitt, S scale with Shim. As the results of analysis on correlation with CAPE-V and Praat measurements, OS scale and R scale showed statistically significant correlation with Jitt, Shim and NHR. B scale represented significant correlation with Jitt, S scale with Shim. Conclusion:Although, both GRBAS and CAPE-V were highly reliable, in comparison between CAPE-V and Pratt, more parameters that showed statistically significant correlation are observed, which implies that VAS has more potential to make detailed evaluation than ORD.

• Acta Via Serica
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• 제4권2호
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• pp.119-128
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• 2019

This paper attempts to reveal little-known pages from the history of relations between the peoples of Central Asia and Korea based on materials derived from written sources and modern scientific literature, as well as from medieval wall paintings from the early medieval Afrasiab Palace of Varhuman, the ruler of Samarkand, and from stone sculptures of Sogdian figures contained in Silla royal tombs. Korea's interest in the western lands led to its contact with Buddhism, which spread and later flourished in all three Korean kingdoms (Koguryo, Paekche and Silla). The spread of Buddhism in turn motivated a number of Korean monks to undertake pilgrimages to India via Central Asia. Hyecho, a young Silla pilgrim, left evidence of his journey via the South China Sea to India in 723 AD. Paul Pelliot discovered a report from Hyecho's journey entitled Notes on Pilgrimage to Five Regions in India (Wang Wu Tianzhuguo zhuan) in the Dunhuang caves in 1908. Hyecho's contributions are worthy of attention, substantially complementing knowledge available for this little-studied period in the history of South and Central Asia. The information contained in Hyecho's manuscript is, in fact, considered the most significant work of the first half of the 8th century. Research regarding the relationship between Central Asia and Korea remains underdeveloped. Existing historical evidence, however, including the above mentioned Samarkand wall paintings, depicts the visits of two Korean ambassadors to Samarkand, and evidence from Silla tombs suggests the presence of diplomatic relations in addition to trade between the two regions. Overall, the history of the relationship between Central Asia and Korea yields new insights into how and why these distant countries sustained trade and diplomatic and cultural exchange during this early period. Taking into account Korea's growing interest in Uzbekistan, especially in its history and culture, this article can act as a catalyst for studying the history of the two country's relations.

• 정신신체의학
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• 제5권1호
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• pp.73-81
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• 1997

Objects: This study aimed to evaluate the role of somatic delusion on the pain perception in patients with schizophrenia. It was hypothesized that pressure pain thresholds would be rather higher in schizophrenic patients who had somatic delusion than patients with other delusion. Methods The subjects were consisted of 3 groups, 23 men with schizophrenia who had somatic delusion, 25 men with schizophrenia who had other delusion, and 22 normal healthy controls. By using Algometer, pressure pain thresholds were examined to subjects on three non-tender sites with 6 weeks interval. The severity of delusion was evaluated in both patient groups. Statistically, Chi-square test, One-way ANOVA, Multivariate ANOVA, and Scheffe's test were used. Results : 1) There was significant difference between somatic and other delusion groups and normal control group at initial stage. 6 weeks later even when severity of delusion was thought to be ameliorated, this finding were sustained. 2) The severity of the components of delusion, conviction and preoccupation, were significantly decreased in both somatic delusion group and other delusion group according to the time interval. The decrements of the severity of delusion seems to be related with changes in pressure pain thresholds in both patient groups. Conclusions : We re-confirmed that both schizophrenic patient groups showed higher pressure pain thresholds compared to normal healthy control. However we failed to find the role of somatic delusion on pain perception in schizophrenia. Delusion, including somatic delusion, as a whole, seems to affect the increased level of pressure pain threshold due to attention deficit and decreased motivation in patients with schizophrenia.

• 한국가스학회지
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• 제20권6호
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• pp.102-114
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• 2016

파리 기후변화협약에 따라 온실가스 감축의 대안으로 도시가스가 각광받고 있다. 본 논문은 한국과 일본 도시가스산업의 경제적 파급효과를 한국은행의 산업연관표(2013)와 일본 경제산업성의 산업연관표(2011)를 활용하여 비교분석하였다. 분석의 결과, 생산유발효과, 부가가치유발효과, 취업유발효과 등은 모두 한국이 일본보다 크게 나타났다. 그러나 공급지장효과와 물가파급효과 역시 한국이 일본보다 크게 나타나는 것으로 분석되었다. 이에 따라 한국의 도시가스산업을 활성화하기 위해 생산유발, 부가가치유발 및 취업유발효과 등을 확대하고, 공급지장과 물가파급효과 등을 예측하여 국민경제를 안정화할 수 있는 정책이 함께 마련되어야 할 것으로 판단된다.

• KSII Transactions on Internet and Information Systems (TIIS)
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• 제13권7호
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• pp.3412-3432
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• 2019

Recent advances in radio frequency (RF) power transfer provide a promising technology to power sensor nodes. Adoption of mobile chargers to replenish the nodes' energy has recently attracted a lot of attention and the mobility assisted energy replenishment provides predictable and sustained power service. In this paper, we study the joint optimization of mobile charging and data gathering in sensor networks. A wireless multi-functional vehicle (WMV) is employed and periodically moves along specified trajectories, charge the sensors and gather the sensed data via one-hop communication. The objective of this paper is to maximize the uplink throughput by optimally allocating the time for the downlink wireless energy transfer by the WMV and the uplink transmissions of different sensors. We consider two scenarios where the WMV moves in a straight line and around a circle. By time discretization, the optimization problem is formulated as a 0-1 programming problem. We obtain the upper and lower bounds of the problem by converting the original 0-1 programming problem into a linear programming problem and then obtain the optimal solution by using branch and bound algorithm. We further prove that the network throughput is independent of the WMV's velocity under certain conditions. Performance of our proposed algorithm is evaluated through extensive simulations. The results validate the correctness of our proposed theorems and demonstrate that our algorithm outperforms two baseline algorithms in achieved throughput under different settings.

• 한국정보시스템학회지:정보시스템연구
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• 제32권4호
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• pp.137-147
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• 2023

Purpose The domestic aquaculture industry in South Korea utilizes both formulated feeds and live feeds for the cultivation of fish. While nutrient-rich live feeds, particularly using fry, have been preferred since the past, formulated feeds are gaining attention due to issues related to overfishing and environmental concerns. Formulated feeds are advantageous for storage and supply but require a sustained feeding regimen due to the comparatively slower growth rate compared to live feeds. As the aging population in rural areas leads to a shortage of labor, automated feeding systems are increasingly being adopted in aquaculture facilities. To enhance the efficiency of such systems, it is crucial to quantitatively analyze the behavioral changes in fish based on the presence or absence of feed. Design/methodology/approach In the study, RGB cameras and infrared cameras were used to analyze fish activity according to feeding, and an outline extraction algorithm was applied to analyze the differences resulting from this. Findings Unlike RGB cameras, infrared cameras are more suitable for analyzing underwater fish activity as they convert objects' thermal energy into images. It was observed that Canny, Sobel, and Prewitt filters showed the most distinct identification of fish activity.