• Journal of the Korean Society of Fisheries and Ocean Technology
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• v.45 no.1
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• pp.22-33
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• 2009

Ecological risk assessment(ERA), developed in Australia, can be used to estimate the risk of target, bycatch and protected species from the effects of fishing using limited data for stock assessment. In this study, we employed the ERA approach to estimate risks to tunas, billfishes, sharks, sea turtles and other species by the Korean tuna longline fishery in the Western and Central Pacific Ocean using productivity and susceptibility analyses of the ERA based on low(<1.30), medium(1.30-1.84) and high risk(>1.84). Albacore, bigeye, yellowfin, skipjack and bluefin tunas were generally evaluated in the medium risk. The susceptibility of tuna species, however, had higher risks than the productivity. Billfishes were also at medium risk, while sharks were at high risk by the tuna longline fishery. The risk of productivity was generally high, because most sharks caught by the tuna longline fishery have high longevities, i.e., over 10 years, including ovoviviparous species. Susceptibility, which is related with the selection of fishing gear, was also high, because the longline fishery has no gear modifications to prevent bycatch of protected species. Not only target tuna species were influenced by the tuna longline fishery in the Western and Central Pacific Ocean, but also nontarget species, such as pomfret, mackerels rays, sea turtle were done. Ecosystem-based fishery assessment tools, such as productivity and susceptibility analysis(PSA), have the ability to provide broad scientific advice to the policy makers and stakeholders.

• Journal of the Korean Society of Fisheries and Ocean Technology
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• v.49 no.4
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• pp.469-482
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• 2013

This study identified problems of the existing ecosystem-based fisheries assessment approach, and suggested new methods for scoring risk and for the estimation of fishery risk index. First, risk scores of zero to two for target and limit reference points for each indicator were replaced by those of zero to three, and the risk scores were calculated from new formulae which were developed in this study. Second, a new method for estimating fishery risk index (FRI) was developed in this study, considering the level of indicators. New method was applied to the Korean large purse seine fishery, large pair trawl fishery and drag net fishery. More precise and detailed risk scores were obtained from the new method, which can explain the risks by the wider range of both risk levels for 'better than target' and 'beyond limit'. The new method for estimating FRI could avoid the basic problem related with duplicated computations of fishery-level indicators, which improved the estimated FRI to be more accurate. Also, a method for estimating variance of FRI using the bootstrap was proposed in this study.

• The Journal of the Korea Contents Association
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• v.12 no.3
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• pp.139-148
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• 2012

The purpose of this study was to analysis the characteristics on participation process and meaning of Dancesports participants. The participants could dance both Latin and Modern with more than three years of participation experience. The data analysis was based on open coding, axial coding and selective coding from the grounded theory of Strauss & Corbin(1998). The results of the analysis were as follows; It was found that causal situation have a longing for Dancesports and a means of living, contextual situation indicated perception of potential ability, media, and leisure chance, intervene condition given improvement of interpersonal relationships, bilateral strategies betterment of lesson place and health promotion and others. As results, the participants were able to find out their positive and negative aspects of participating Dancesports classes, and showed that Dancesports provided the participants for vitality of life.

• The Journal of the Korea Contents Association
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• v.11 no.12
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• pp.423-430
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• 2011

The purpose of this study was to examine if influence parents on soccer player role socialization. The participants of the study are 149 who are university soccer players. The stratified cluster random sampling method has been used in this study. The material collection device was the brochure named [Influence parents on soccer player role socialization]. The result of reliability check up was Cronbach's ${\alpha}$. 8847~.7306. To analyze materials, the "ANOVA" and "regression analysis" were used as statistic analysis techniques. The conclusion based on above study method and the result of material analysis are here below. 1. Participation of parents influence on status of team internal. 2. Participation of parents influence on position of team. 3. Participation of parents influence on career of get a prize.

• The Journal of the Korea Contents Association
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• v.18 no.4
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• pp.223-233
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• 2018

This study examined the factors influencing the suicide prevention gatekeeper participation of 299 grassroots organizational leaders in Gangwon province. For this purpose, participation of activities of suicide prevention gatekeeper was classified into performance intention and intervention level. Performed hierarchical multiple regression analysis by setting participation motives which showed a significant correlation with participation of suicide prevention gatekeeper as independent variables. As a result of the analysis, participation motives affecting performance intention were a sense of mission as a leader, benefits or rewards for activities, the meaning and purpose of suicide prevention, government policy. And participation motives affecting intervention level were invitation of public officials, the meaning and purpose of suicide prevention. Based on the results of this study, suggested implications for the participation of suicide prevention activities in community grassroots organizations and suggestions for future activation.

• Journal of Biomedical Engineering Research
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• v.30 no.2
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• pp.142-146
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• 2009

The purpose of this study is to investigate the angular velocity of forearm pronation/supination movement in Parkinson's disease patients, as a quantitative measure of the bradykinesia. Thirteen Parkinson's disease patients ($64{\pm}11.0$ yrs, male:6, female:7) participated in the experiments. The subjects' both right and left forearms were scored by a rater according to rapid alternating movement of hands category in the UPDRS (unified Parkinson's disease rating scale) and the angular velocity of forearm pronation/supination was measured at the same time. As analysis parameters, RMS (root mean square) angular velocity and RMS angle were used. The parameters showed negative correlation with the clinical score (RMS angular velocity: r= - 0.914, RMS angle: r= -0.749). The RMS angular velocity of all clinical scales were significantly different one another except for the non significant difference between those of scale 3 and 4. RMS angle of scale 0 was significantly different from those of scale 2, 3, 4 and that of scale 1 was significantly different from those of scale 3 and 4. This suggests that RMS angular velocity can be used for a quantitative measure of bradykinesia in motor examination.

• Journal of the Korea Academia-Industrial cooperation Society
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• v.15 no.11
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• pp.6756-6766
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• 2014

The aim of this study was to validate the influence from academic stress caused by the achievement pressure of their parents and the adjustment effect of self-differentiation. The data was collected from 257 students from the 19th of May, 2014 to the 30th of May, 2014 for freshmen and sophomores of a college in the Kyoungbook region to validate the study. The SPSS/PC 18.0 program was used for the statistical analysis. Hierarchical multiple regression analysis revealed more less influence of academic stress caused by the achievement pressure((${\beta}=.111$, p<0.05) of their parents but there was no reasonable value in validating the adjustment effect to reduce the academic stress by self-differentiation, i.e., it should be a non-linear and complex effect rather than a simple linear relationship for self-differentiation.

• Journal of the Korean Society of Marine Environment & Safety
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• v.24 no.1
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• pp.29-35
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• 2018

According to the Global Wind Report of the Global Wind Energy Council (GWEC) in 2017, global wind power electricity generation capacity has been dramatically developing from 23,900 MW in 2001 to 486,790 MW in 2016. However, wind power generation in South Korea accounts for only 0.2 % of total power generation. Nonetheless, electricity production by wind power generation is soon expected to reach the grid parity where the cost of generating electricity by wind power is equal to the cost of fossil fuels such as oil. In this study, we analyzed the criteria of vessel traffic and fishing activities of major offshore wind farms in Europe where 88 % of the offshore wind power facilities are located. Finally, we suggest critical considerations based on the analysis.

• Clinical and Experimental Pediatrics
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• v.52 no.10
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• pp.1167-1170
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• 2009

Trichobezoar is characterized by the accumulation of hair in the gastrointestinal tract and usually occurs in those who have trichotillomania, other psychiatric disorders, or neurologic problems. Trichobezoar typically presents as gastric obstruction, including abdominal pain, vomiting, anorexia, and weight loss. A 9-year-old girl visited our clinic with the complaint of abdominal discomfort and vomiting. A review of her medical history revealed that she had trichophagia since the age of 5, and she felt that her parents had been strict with her. She underwent gastrotomy, during which a large trichobezoar was removed. This case highlights the importance of psychiatric and comprehensive approaches in patients with trichobezoar.

• Journal of Biomedical Engineering Research
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• v.33 no.4
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• pp.163-168
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• 2012

Elderly women are reported to have greater risk of falls. The purpose of this paper was to investigate the possible gender differences in the reaction performance of ankle joint muscles, which have dominant role in the control of sagittal plane balance. Twenty-six elderly men and women with comparable mean age participated in this study. Reaction times to the audible beeps were measured in the tibialis anterior muscle and gastrocnemius muscle. Reaction time variables included premotor time, electromechanical delay and total reaction time. Gender difference in each reaction time was investigated by independent t-test. In both muscles, premotor time was longer in men but the electromechanical delay was longer in women (p < 0.05). Resulting total reaction time was longer in men in tibialis anterior muscle (p < 0.01) and it tended to be longer in men also in gastrocnemius muscle (p = 0.25). The results demonstrates that the overall reaction performances of elderly women is better than or comparable to those of elderly men in ankle joint muscles. This suggests that the reaction performance of ankle muscles is hardly the cause of the greater risk of falls in elderly women.