• Korean Journal of Cognitive Science
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• v.11 no.2
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• pp.37-51
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• 2000

The present study compared computer users target-selection response patterns when the targets were varied in terms of their relative location and distance from the current position of the cursor. In Experiment 1, where the mouse was used as an input device, the effects of different directions and distances of simple target(small rectangle) on target-selection response were investigated. The results of Experiment 1 can be summarized as follows: (1) Overshooting was more frequent than either undershooting or correct movement and (2) this tendency was more prominent when the targets were presented in the oblique direction or in farther location from the current cursor position. (3) Although the overshooting and undershooting were more frequent in the oblique direction, the degree of deviation was larger in horizontal and vertical direction. (4) Time spent in moving the mouse rather than that spent in planning, calibrating or clicking was found to be the most critical factor in determining total response time. In Experiment 2, effects of the font size and line-height of the target on target-selection response were compared with regard to two types of input devices(keyboard vs. mouse). The results are as follows: (1) Mouse generally yielded shorter target-selection time than keyboard. but this tendency was reversed when the targets were presented in horizontal and vertical directions. (2) In general, target-selection time was the longest in the condition of font size of 10 and line-height of 100%, and the shortest in the condition of font size of 12 and line-height of 150%. (3) When keyboard was used as the input device, target-selection time was shortest in the 150% line-height condition, whereas in the mouse condition, target-selection time tended to be increased as the line-height increased. which resulted in the significant interaction effect between input device and line-height. Finally, several issues relating to human-computer interaction were discussed based on the results of the present study.

• The Journal of the Petrological Society of Korea
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• v.9 no.2
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• pp.84-98
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• 2000

Daejeon-sa basalt in the Mt. Juwang area composed of 12 basalt flows alternate with 9 peperites and each basalt and peperite has the variety of thickness. Peperites yielded in Daejeon-sa basalt are mixed of basalt with reddish shale, of which textural type is globular peperite. Basalts yielded in Daejeon-sa basalt are massive basalt without vesicule, although sometimes vesicules are founded in upper within a flow unit. The basalt has mainly pseudomorph of olivine as phenocryst, and also plagioclase and clinopyroxene phenocryst. Matrix is mainly subophitic texture. The plotting result on the TAS diagram shows these basalts belong to the sub-alkaline, and it can be subdivided into calc-alkaline series on the basis of the diagram of Si02 vs. K20 and of alkali index vs. A1203 diagram. According to plots of wt.% oxides vs. wt.% MgO, abundances of A1203 and CaO increase with decreasing MgO while F ~ dOecre~ase . With decreasing MgO compatible elements decrease while incompatible elements increase. In spider diagram of MORB-normalized trace element patterns, HFS elements are nearly similiar with MORB, but LIL elements are enriched. Especially, contents of Ce, F: and Sm are enriched but Nb is depleted. In the chondrite-normalized REE patterns light REEs are enriched than heavy REEs. Tectomagmatic discrimination diagrams shows basalts in the study area are formed in the tectonomagmatic environment of subduction zone under continental margin. This result accord with characters of chemical composition mentioned above. Cr vs. Y diagram and CeM, vs. Ce diagram show that the primary magma of the basalts may formed by the about 15% partial melting of garnet-peridotite in the mantle wedge. After then, Daejeon-sa basalts may formed from evolved magma undergone mainly olivine fractional crystallization and contarnination of crustal materials before eruption.

• Korean Journal of Food Science and Technology
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• v.49 no.6
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• pp.649-658
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• 2017

The potential of the ethyl acetate fraction from Pteridium aquilinum (EFPA) to improve the cognitive function in high-fat diet (HFD)-induced diabetic mice was investigated. EFPA-treatment resulted in a significant improvement in the spatial, learning, and memory abilities compared to the HFD group in behavioral tests, including the Y-maze, passive avoidance, and Morris water maze. The diabetic symptoms of the EFPA-treated groups, such as fasting glucose and glucose tolerance, were alleviated. The administration of EFPA reduced the acetylcholinesterase (AChE) activity and malondialdehyde (MDA) content in mice brains, but increased the acetylcholine (ACh) and superoxide dismutase (SOD) levels. Finally, kaempferol-3-o-glucoside, a major physiological component of EFPA, was identified by using high-performance liquid chromatography coupled with a hybrid triple quadrupole-linear ion trap mass spectrometer (QTRAP LC-MS/MS).

• Sleep Medicine and Psychophysiology
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• v.20 no.2
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• pp.63-68
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• 2013

Objectives: Several evidence has been suggested that the circadian gene variants contribute to the pathogenesis of seasonal affective disorder. In this study, we aimed to investigate the polymorphism in RORA (Retinoid-related orphan receptor A) gene in relation to seasonal variations among healthy young adults in Seoul, Korea. Methods: A total of 507 young healthy adult subjects were recruited by advertisement. Seasonal variations were assessed by the Seasonality Pattern Assessment Questionnaire (SPAQ). Single-nucleotide polymorphism in the RORA rs11071547 gene was genotyped by PCR in 507 individuals. Considering summer type as confounding factor, we conducted analysis 478 subjects except 29 subjects of summer type. The Chi-square test was conducted to compare differences between groups of seasonals and non-seasonals. Association between genotypes and Global Seasonality Score (GSS) were tested using ANCOVA (Analysis of covariance). Results: In this sample, the prevalence of SAD was 12.1% (winter type 9.3%, summer type 2.8%). There is no significant difference in genotyping distribution of RORA rs11071547 between groups of seasonals and non-seasonals. Global seasonality score (GSS) and scores of all subscales except body weight and appetite were not significantly different between the group with C allele homozygote and the group with T allele homozygote and heterozygote (p-value 0.138). Scores of body weight and appetite were significantly higher in group with C allele homozygotes. Conclusion: These results suggest that RORA gene polymorphism play a role in seasonal variations in appetite and body weight and is associated with susceptibility to seasonal affective disorder in some degree in the population studied.

• Journal of Veterinary Clinics
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• v.27 no.5
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• pp.546-552
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• 2010

Previous studies could not offer available guideline to decide size of balloon and grade of injury before induction of spinal cord injury (SCI) because grade of SCI was assessed after inserting a catheter and each experimental animal were different in body size and weight as well as in species. This study was performed to provide guideline for standardized SCI model. Eight healthy adult beagle dogs that had 8 mm of spinal canal height were assigned to four groups according to the diameter of balloon and compression time: 4 mm/3hrs, 4 mm/6hrs, 4 mm/12hrs and 6 mm/3hrs group. Radiography was performed to standardize between experimental animal and balloon before selecting balloon diameter to induce SCI. Behaviors outcomes, somatosensory evoked potentials (SEPs), magnetic resonance imaging (MRI) and histopathological examination were evaluated. Behaviors outcomes and SEPs were not available to assess grade of SCI and those only indicate SCI. The damaged area was revealed clear hyperintensity on STIR image and T2WI after induction of SCI. The hyperintense area on MRI was cranially and caudally expanded with increasing of the diameter of balloon or the compression time. Well corresponded to expanding of hyperintense area on MRI, the damaged region and the numbers of caspase-3 and PARP immunoreactive cells were increased on histopathological findings. Therefore, these results will be considered fundamental data to induce standardized SCI model in experimental animal that has various weight and size.

• Journal of the korean academy of Pediatric Dentistry
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• v.27 no.4
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• pp.505-516
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• 2000

Chloral hydrate is one of the most widely used sedative agents to control the difficult-to-treat young age group in the dental clinic. We are often frustrated to see the patient still awake and cry with agitation even after far more than the normal onset time of Chloral hydrate. In such a case, the patient has to be rescheduled for another sedation visit with different agents and/or routes which greatly disappoints the guardians. This study was designed to test the efficacy of one sedative regimen that can possibly help the clinician complete scheduled treatment without postponement. We have tried sleep induction with mixed gas of Enflurane(2vol%) and $N_2O(50%)-O_2(50%)$ for $60\sim120$ seconds to 35 patients of those who failed to respond properly to the dose(70mg/kg)of oral Chloral hydrate. The Result of this regimen was compare to those of two oral regimen of Chloral hydrate/Hydroxyzine and Chloral hydrate only Analyses of result on vital signs and behavior pattern were performed. The outcome of the study suggest that sleep induction by a short inhalation of low dose of $Enflurane/N_2O-O_2$ provide dentist with suitable condition for the completion of scheduled treatment in the patient who failed to oral Chloral hydrate. Evidence of adverse effect was not detected or reported during and/or after the procedures.

• Journal of the korean academy of Pediatric Dentistry
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• v.37 no.1
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• pp.65-72
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• 2010

General anesthesia has been researched and developed in dentistry as on type of management technique to sedate patients who may be uncontrollable or require medical consideration. There has been continuous research into this area, but analysis of large set of patients over a sustained period of time is lacking. Thus, this study analyzes the records of patients who received general anesthesia at the Yonsei University Dental Hospital Department of Pediatric and Clinic for the Disabled. 1. Patient's age ranged from 1 to 66, with under 5 being the largest group with 410 members(38.5%). The study included more men than women, with 695 male members(65.3%). 2. Type of dental procedure performed were as follows(per person) : 5.6 Dental restoration; 2.3 Endodontic treatment of deciduous and primary teeth; 2.5 preformed crowning; and 1.6 extractions. Procedures took an average of 100 minutes. 3. 1022 patients(95.9%) received dental care under general anesthesia once and 43 patients(4.1%) received dental care under general anesthesia two or more times. Dentistry under general anesthesia has the many benefit. However, without appropriate post-treatment care, it is difficult to maintain good oral health. Therefore, it is important to improve the efficiency and safety of general anesthesia through future research.

• Journal of Nutrition and Health
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• v.54 no.5
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• pp.534-546
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• 2021

Purpose: This study aimed at understanding meal kit purchasing behavior and investigating its relationship with the Nutrition Quotient (NQ) of young adults. Methods: We conducted a survey on adults in their 20s and 30s covering their meal kit purchase experience, satisfaction, recognition, and purchase intention, and examined the relationship between the meal kit purchase and their NQ from February to March 2021. Results: Among the 404 subjects, 37.9% of males and 48.0% of females had experience in purchasing a meal kit (p < 0.001). The highest response indicated that the purchase cost of meal kits was 10,000-20,000 Won at a time, and the frequency of purchase was less than once a month. The convenience of cooking was the main reason for the purchase of meal kits, which were consumed mainly in the evening with family. The satisfaction with the purchase experience of a meal kit was rated 3.6 points for males and 3.7 points for females out of 5 points, and the satisfaction experienced by women was significantly higher than men in terms of freshness of ingredients, packaging design, and adequacy of the quantity of content (p < 0.05). Recognition of the meal kit was rated 3.5 points for males and 3.7 points for females out of 5 points. The purchase intention of the meal kit was rated 3.8 points for those with prior purchase experience, 3.2 points for the non-experienced, 3.3 points for males, and 3.6 points for females out of 5 points each (p < 0.001). The NQ score of dietary behavior in females with experience of meal kit purchases was significantly higher than non-experience (p < 0.05). Conclusions: The dietary behavior of female showed a significant difference by the meal kit purchase experience. It is necessary to understand the consumers' meal kit purchasing behavior to enable the development of various health-oriented meal kit products.

• Journal of Nutrition and Health
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• v.53 no.6
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• pp.629-647
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• 2020

Purpose: This study was undertaken to develop a nutrition quotient for elementary school children (NQ-C) for evaluating the overall dietary quality and eating behaviors. Methods: The NQ-C was developed by implementing 3 stages: item generation, item reduction, and validation. Candidate food behavior checklist (FBC) items of the NQ-C were derived from systematic literature reviews, expert in-depth interviews, statistical analyses of the fifth Korean National Health and Nutrition Examination Survey data, and national nutrition policies and recommendations. For the pilot survey, 260 elementary school students (128 second graders and 132 fifth graders) completed self-administered questionnaires as well as 24-hour dietary intakes, with the help of their parents and survey team staff, if required. Based on the pilot survey results, expert reviews, and priorities of national nutrition policy and recommendations, checklist items were reduced from 41 to 24. A total of 20 items for NQ-C were finally selected from results generated from 1,144 nationwide samples surveyed. Construct validity of the NQ-C was assessed using the confirmatory factor analysis, LInear Structural RELations. Results: Analyses of the exploratory factors of NQ-C identified that 5 dimensions of diet (balance, diversity, moderation, practice and environment) accounted for 46.2% of the total variance. Standardized path coefficients were used as weights of the items. The NQ-C and 5-factor scores of the subjects were calculated using the obtained weights of the FBC items. Conclusion: Our data indicates that NQ-C is a useful and suitable instrument for assessing nutrition adequacy, dietary quality, and eating behaviors of Korean elementary school children.

• Journal of the Daesoon Academy of Sciences
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• v.21
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• pp.323-367
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• 2013

한국의 대순진리회는 증산 성사의 가르침을 숭신하는 종교단체로서, 한국 사회에 상당한 영향력을 가지고 있다. 1969년 창설된 대순진리회는 포덕·교화·수도를 삼대 기본사업으로, '음양합덕·신인조화·해원상생·도통진경'을 종지로, '안심·안신·경천·수도'를 사강령으로, '성·경·신'을 수도의 삼요체로 삼고 있다. 또한 인간개조와 포덕천하·구제창생·보국안민을 통하여 지상천국을 건설하는 것을 목표로 한다. 대순진리회는 사상적 측면에서 무(巫)와 유(儒)·불(佛)·도(道)를 포용하고 있다. 이러한 대순사상을 바탕으로 대순진리회의 도인들은 근엄하고 세밀한 실천수도를 수행하는데, 그 내용을 살펴보면 중국 유·불·도의 양생문화와 많은 공통점이 있는 동시에, 또한 뚜렷한 한국 문화의 특색을 띠는 부분도 있다. 이런 면들은 모두 개인적 수도와 사회적 안정을 실현하는 데 큰 도움이 되고 있다. '안심·안신·경천·수도'의 사강령은 대순진리회의 도인들이 지켜야 할 가장 기본적인 행위규범이다. '성·경·신'의 삼요체는 사강령을 실천하기 위한 내면적 수양으로서 모든 수도활동의 근본이 되는 것이다. 삼요체 중에서 '성'을 가장 근본적인 것으로 생각하는데, 그 이유는 오직 '성'을 갖춘 사람만이 '경'과 '신'을 논할 수 있기 때문이다. 반대로 마음속에 망념이 있거나 경거망동을 하는 사람들은 상제에 대한 '경'과 '신'을 잃게 된다. '성실함'이라는 내면적 도덕 품성은 인간으로 하여금 더욱 정직하고 안정되며 오래 지속되게 한다. 뿐만 아니라 '성'은 수도자들로 하여금 더욱 순수해지고, 어리석음을 버리게 한다. 크나큰 도를 성취하려면 먼저 이렇게 얼핏 보기에는 어리석지만 끈기 있는 마음이 필요하다. '성'하면 기운이 솟구쳐 내면이 더욱 안정되고 번뇌는 사라진다. 성심을 수련하면 마음이 안정되고, 마음이 안정되면 정신이 안정되는데, 정신이 안정되면 걱정이 사라지기에 몸도 건강해진다. 삼요체중 '경'과 '신'에 있는 큰 의미 가운데 하나는 상제님에 대한 경배와 믿음을 끝까지 가지라는 것이다. '해원상생·보은상생'은 대순사상의 가장 중요한 대도(大道) 윤리로서 도인들의 수도를 인도하는 기본적인 법칙이다. 대순진리회에서 말하는 해원은 단지 개인 한 사람의 해원이 아니라 우주의 질서를 바로잡는 해원이라는 점에서 중요하다. 그렇기 때문에 대순진리회 도인들은 개개인으로 시작하여 자신의 원한을 해결할 뿐만 아니라, 땅의 원한, 천민의 원한, 여인의 원한 등 모든 원을 해결해 주고자 한다. 즉 삼계의 모든 불평등을 해소하고 불합리한 부분을 바로잡는 것이다. 해원의 다른 측면은 보은이라 할 수 있다. 해원과 보은은 상보상조의 관계에 있는데, 이는 곧 도인들이 행하는 수도의 양 날개라 생각된다. 해원을 통하여 과거의 장애를 제거하고, 보은을 통하여 현재의 덕을 쌓는 것이다. 보은을 하려면 항상 감사의 마음을 간직해야 한다. 그 의미는 인간관계에 있어서 다른 사람이 베푼 은혜를 항상 고맙게 생각해야 한다는 것이며, 더 나아가 천지가 우리에게 베푼 은혜도 감사하게 생각해야 한다는 것이다. 모든 원한이 풀어지고, 모든 은혜를 다 갚았을 때 삼계가 조화롭고 통하게 될 것이다. 대순진리회에서는 도인들의 실천수도 면에서 두 가지 측면을 강조하는데, 즉 포덕교화와 근언신행이다. 근언신행은 자아발전을 위한 도인들의 내적 수련이며, 포덕교화는 도인들이 외부 세상에 대순사상을 알리고 가르치는 것을 말한다. 양자는 동전의 양면과 같이 떨어질 수 없는 관계에 있다. 다른 사람을 포덕·교화 하려면 도인들 스스로가 먼저 말과 행동에 조심해야 한다. 왜냐하면 말과 행동을 조심하는 것 자체가 곧 포덕교화에서 다른 사람의 모범이 되기 때문이다. 인생을 살면서 추구해야 할 가장 높은 목표는 덕(德)을 세우는 것이고, 그 다음은 공(功)을 세우는 것이며, 그 다음은 언(言)을 세우는 것이다. 덕·공·언은 세월이 지나도 그 가치가 빛을 바래지 않는다. 이 세 가지 중 한 가지를 이룬 사람이면 불후하다고 할 수 있다. 성인들이 성인으로 칭송 받았던 이유는 모두 육체를 초월한 덕·공·언으로 세상을 풍요롭게 했기 때문이다. 그렇기 때문에 비록 그들이 세상을 떠났다 하더라도 마치 살아있는 것처럼 영원히 추앙되니, 이것을 통하여 영생을 얻는 것이다. '영생(永生)' 만큼 높은 경지에 도달하는 '양생'이 또 어디에 있겠는가? 대순진리회 실천수도의 최고목표는 바로 인간 내면의 수양을 최고의 경지로 끌어올리는 것으로서 이는 곧 음양합덕·도통진경이다. 다시 말해서 영원히 불후한 경지에 이르고 만세(萬歲)토록 영생하는 것이며 신(神) 그리고 성인이 되는 것이다.