• The Sea:JOURNAL OF THE KOREAN SOCIETY OF OCEANOGRAPHY
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• v.12 no.2
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• pp.81-85
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• 2007

Early growth of chum salmon was investigated in terms of rearing pond condition. The number of fingerling showed big differences by rearing pond $1,003,000{\sim}1,865,000$. The fork length of fingerlings ranged from $3.20{\sim}3.78cm$ and body weight ranged $0.34{\sim}0.49g$. Daily temperature of rearing water in January to March was $6{\sim}8^{\circ}C$, which is inadequate for salmon growth. pH was $6.0{\sim}6.3$ in early and mid February, 6.5 in late February and $6.5{\sim}7.0$ in March. Dissolved oxygen concentration was lowest from 8 a.m. to 6 p.m. and increased after 6 p.m. The maximum value was seen from 9 p.m. to 6 a.m. The mortality of fingerlings was 5 times higher in the daytime than at night because of dissolved oxygen. Growth of fingerlings was affected by daily ration, concentration of dissolved oxygen and rearing temperature.

• Atmosphere
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• v.34 no.2
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• pp.139-151
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• 2024

The Yeongdong region has suffered from severe snowstorms and the relevant damage such as traffic accidents on slippery roads, and the collapse of greenhouses and temporary buildings. While a lot of research on snowfall has been conducted, the detailed study of snow crystals' phase and habit through intensive observations and the relevant microphysical analysis is still lacking. Therefore, a snowflake camera, PARSIVEL, and intensive radiosonde soundings were utilized to investigate phase and habit changes in solid precipitation. Two remarkable episodes of phase and habit changes were selected such as 19 March 2022 and 15 February 2023. Both events occurred in the synoptic condition of the High in the north and the Low passing by the south, which was accompanied by rapid temperature cooling below 2.5 km. During the events of a short period between 3 to 6 hours, the temperature at 850 hPa decreased by about 4 to 6℃. This cooling led to a change in the main habit of snow particles from riming to aggregate, identified with both MASC and PARSIVEL. Meanwhile, the LDAPS model analyses do not successively represent the rapid cooling and short-term variations of solid precipitation, probably by virtue of overestimating low-level equivalent potential temperature during these periods. The underlying causes of these the low-level temperature variations within 6 hours, still remain unclear. It might be associated with mesoscale orographic phenomenon due to the mountains and East Sea effects, which certainly needs an intensive and comprehensive observation campaign.

• The Korean Journal of Mycology
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• v.4 no.1
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• pp.1-10
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• 1976

For the purpose of investigating the distribution and flora of wild mushrooms in Korea, this study was conducted primarily on the genus Amanita. Through survey of Suweon, Kwangneung, Mt. Chiri, Taegwanryung, Yeongdong district and Mt. Hanta, 25 species of Amanita including 3 unrecorded species were discovered and are described in this paper. The author proposes to group 25 Korean species of Amanita into 3 subgenera according to morphological characteristics by the modern taxonomic system, and also designated the 3 unrecorded species of Amanita including one variety in Korean common name.

• The Journal of Korean Physical Therapy
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• v.20 no.3
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• pp.1-7
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• 2008

Purpose: Implicit motor learning is the capacity to acquire skill through physical practice without conscious awareness of what elements of performance improved. This study investigated whether subacute stroke patients can implicitly learn a perceptual-motor task. Methods: We recruited 12 patients with subacute stroke and 12 age-matched controls. All participants performed a perceptual-motor task that involved pressing a button corresponding with colored circles (blue, green, yellow, red) on a computer screen. The task consists of 7 blocks composed of 10 repetitions for a repeating 12-element sequence (total 120 responses). Results: Both groups demonstrated significant improvement in acquisition performance. Reaction times deceased in both groups at similar rate within the sequential block trials (2-5 blocks), and reaction times increased at a similar rate when the task paradigm was transferred from the sequential block trial to the random block trial (5-6-7 blocks). Conclusion: The results of this study suggest that patients with sub-actue stroke can implicitly learn a perceptual motor skill. Although explicit instructions should be used to focus the learner's attention rather than provide information about the task, the application of implicit motor learning strategies in the rehabilitation setting may be beneficial.

• Journal of Korean Medical classics
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• v.26 no.3
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• pp.111-126
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• 2013

Objective : This study was designed in order to support the standpoint that dementia will be treated better by remedy for heart rather than for brain, liver and kidney in Korean Medicine. Methods : We investigated which of five viscera make dementia from original texts about it. Then, 15 aged men living alone in Yeongdong-gun, Chungcheongbuk-do were treated for dementia by herb remedies, acupuncture and moxa. After it, we verified through method, for example, SMMSE-DS, CDT, and etc. Results : We had results that the main viscera causing dementia is heart, and heart is related with gall bladder, spleen, and kidney according to philological method. Clinical testing in this viewpoint showed satisfactory effects on the diseases. Conclusion : From the results, we proved it could be a new way of remedy for dementia that main the viscera causing dementia is heart in Korean Medicine.

• Journal of the Korean Society of Physical Medicine
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• v.12 no.3
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• pp.105-109
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• 2017

PURPOSE: The purpose of this study was to investigate the effect of ankle dual task including motor training on the static balance, dynamic balance in the elderly. METHODS: 30 elderly people were randomly divided into 3 groups: 10 people in the single motor task group, 10 people in the double motor dual task group and 10 people in the motor-cognitive dual task group. In the double motor dual tasks group was performed ankle balance motor task additional motor task. Motor-cognitive dual task group was performed ankle balance motor task additional cognitive task. Single motor task group was performed ankle balance motor task. It was performed three times intervention a week for six weeks. Statistical analysis method was performed using one way ANOVA for comparison between groups, and the paired t-test was used for comparison pre and post intervention. RESULTS: Static and dynamic balance were significant differences between pre and post intervention by three groups (p<.05). In static balance, there was a significant difference among groups (p<.05), but there was not a significant difference between groups in dynamic balance (p>.05). CONCLUSION: The results of the research, the ankle balance dual task including motor or cognitive task was more effective than single motor task on static balance in the elderly.

• Korea Journal of Hospital Management
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• v.22 no.1
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• pp.21-39
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• 2017

Purpose : This study was intended to investigate the structural relationship among empowerment, self-efficacy, job motivation, autonomy, critical thinking, job-satisfaction, burnout, and self-achievement. In addition, we tested the moderating effect of the career period on the influence of empowerment. Methodology : The structural equation model was used to test the causal relationship between factors, and t-test, ANOVA, descriptive statistics are applied to analyze the research data. Findings : The result of this study shows that the structural model that is the empowerment encourages the self-efficacy, job motivation, autonomy, and critical thinking, also these factors affect the self-achievement through both the job-satisfaction and burnout is acceptable according to the goodness of fitness indices. In addition, we show that the career period moderates the influence of empowerment on the self-efficacy, job-motivation, and autonomy, but not critical thinking. Usually, the shorter the career period is the higher the influence of empowerment is. This moderating effect means that to give proper empowerment to lower position nurses encourage them, and prevent from burnout. Therefore, they feel job-satisfaction and finally self-achievement. Practical Implications : The empowerment helps the nurse to activate self-efficacy, job motivation, autonomy, critical thinking. Hence, these factors decrease burn-out but increase job satisfaction. Finally a sense of self-perfection increase.

• Proceedings of the Korean Society of Plant Pathology Conference
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• 2003.10a
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• pp.110.1-110
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• 2003

Control effect of grafting with rootstocks on Phythophthora blight of pepper was evaluated. The 40∼45 day old seedlings of five pepper cultivars, Wangdaeback, Jinmi, Boosa, Samsungcho and Pochunngchun, as a scion were grafted with ten species of root stocks. There wasn't graft incompatibility in all scion-root stock combinations. After 21 days from inoculation with Phytopkhora capsici, incidence of Phythophthora blight of plant grafted with Kataguruma, R-Safe, R-16, YCM 334 and SCM 334 of rootstocks tested was decreased by 64.6∼100％ compared to non-grafted plant whose disease severity was 3.7. However, plant grafted with Umsung native and Yeongdong native pepper was more sensitive to Phythophthora blight than non-grafed plant. Control effect by grafting was inversely proportional to virulence of inoculum and not significantly different among scion cultivars used. And resistant reaction of scion against Phytophthora blight was not affect that of scion-root stock plant in this study.

• Korean Journal of Occupational Health Nursing
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• v.7 no.2
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• pp.121-129
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• 1998

Health behavior constitutes the single most important factor in an individual's health maintenance program. Pender's health promotion model emphasizes the positive aspects of health-seeking behavior hut omits some negative ones. Although Pender's work does include the concept of barriers, the main focus is upon health habits rather than upon the interaction between the consumer and the health care system. Therefore, since individuals actually do face many barriers in their health-seeking behavior, the present study deals with negative concepts-the barriers to health and healthy behavior. For this reason the expression health-seeking behavior was chosen over health promotion. In conclusion, the results show that barriers to health-seeking behavior are causal factors that could explain and predict the health-seeking behavior of middle life women. Midlife women shows that they have barriers to health-seeking behavior especially in inconvenience, cost, healthcenter site-related problem, relationship, fear. These findings suggest the need to develop a nursing strategy to improve the empowerment of self-determination in middle-aged women. Consequently, a goal of nursing care for middle-aged women should be to help them pursue health care with a greater degree of self-sufficiency.

• Korean Journal of Occupational Health Nursing
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• v.22 no.3
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• pp.257-265
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• 2013

Purpose: This study aimed to investigate the job stress level of call center workers and figure out its relation with cognitive emotion regulation strategies as a cognitive coping strategy. Methods: Data collection was conducted on 985 call center workers, working for K companies in Korea. ANOVA, t-test, Scheffe's test and multiple regression have been conducted for the data analysis using SAS 9.0 software. Results: The total job stress score of subjects ranges $Q_{25{\sim}49}$ (the lower 50%) whereas the score of job demand and job control ranges $Q_{50{\sim}74}$ (the upper 50%), and its sectional job stress level is high. Since job stress is the major factor affecting cognitive emotion regulation strategies, it is shown that when the job stress score gets higher, the score of positive cognitive emotion regulation strategies gets decreased but the score of negative cognitive emotion regulation strategies, increased. Conclusion: Based on the results of this study, it is necessary to develop and apply an effective stress easing method for call center workers which reduces negative cognitive emotion regulation strategies and increases positive ones.