• Title/Summary/Keyword: Wave groups

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Comparative study of wound healing in canine stomach with CO2 laser and scalpel incisions (CO2 레이저와 scalpel을 이용한 위 절개 시 개에서의 창상 치유 평가)

  • Lee, Jae-Yeon;Hwang, You-Sun;Kim, Han-Kyul;Choi, Hyun-Suk;Jeong, Seong-Mok;Cho, Sung-Whan;Park, Chang-Sik;Kim, Myung-Cheol
    • Korean Journal of Veterinary Research
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    • v.50 no.2
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    • pp.155-160
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    • 2010
  • The objective of this study was to compare wound healing in stomach with $CO_{2}$ laser and scalpel incision by measuring the extent of bleeding, the ease of gastric incision, incision time, degree of adhesion and wound healing degree in dogs. Sixteen healthy dogs were used. Two symmetrical incisions were made in ventral aspect of the stomach between the greater and lesser curvatures were made with scalpel and 0.2 mm spot diameter $CO_{2}$ laser (8W, continuous wave) in sixteen dogs. And then each wound was closed with absorbable suture in a two-layer inverting seromuscular pattern. At 3, 7, 14 and 21 days after initial wounding, each wound was taken for histological observation. On surgery, the extent of bleeding, the ease of incision and incision time showed significant differences between the groups. The $CO_{2}$ laser provided better hemostasis (p < 0.05) and smaller postoperative adhesion compared with the scalpel. However, the scalpel produced faster speed of incision and was easier to handle than the $CO_{2}$ laser (p < 0.05). Although there was no considerable difference between the two groups in histological observation, necrosis and calcium deposit tended to be larger in the $CO_{2}$ laser than in the scalpel.

The Changes of Sleep-Wake Cycle from Jet-Lag by Age (연령에 따른 비행시차 후의 수면-각성주기 변화)

  • Kim, Leen;Lee, Seung-Hwan;Suh, Kwang-Yoon
    • Sleep Medicine and Psychophysiology
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    • v.3 no.2
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    • pp.18-31
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    • 1996
  • Jet-lag can be defined as the cumulative physiological and psychological effects of rapid air travel across multiple time zones. Many reports have suggested that age-related changes in sleep reflect fundamental changes in the circadian system and in significant declines in slow wave sleep. Jet lag is a dramatic situation in which the changes of the phase of circadian process and homeostatic process of sleep occur. Thus the authors evaluatead the changes of sleep-wake cycle from jet lag by age. Thirty-eight healthy travellers were studied for 3 days before and 7 days after jet-flights across seven to ten time zone. They were aged 19-70, They trareled eastbound, Seoul to North America (USA, Canada). Sleep onset time, wake-up time, sleep latency, awakening frequency on night sleep, awakening duration on night sleep, sleepiness at wake-up and nap length were evaluated. Our results suggest that by the 7 to 10 time zone shift, the old age group was significantly influenced in sleep-wake cycles. The date on which subjective physical condition was recovered was $6.23{\pm}83$ day after arrivals for old age group, while for young and middle age group, $4.46{\pm}1.50$ day and $4.83{\pm}1.52$ day, respectively. In old age group, sleep onset time was later than baselines and could not recover untill 7th day. But in other groups, the recovery was within 5th day. Nap dura fion was longer in old age group through jet lag than younger age group. In other parameters, there was no definite difference among three age groups. Our results suggested that the old age was significantly influenced by the disharmony between internal body clock and sleep-wake cycle needed at the travel site. Thus we proved that recovery ability from jet lag was age-dependent as well as travelling direction-dependent. To demonstrate more definite evidence, EEG monitoring and staging of sleep were funthun encouraged.

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Spatial Distribution of Marine Invertebrate Communities on Intertidal Rocky Shore in Dokdo (독도 암반조간대 무척추동물군집의 공간적 분포)

  • Cha, Jae-Hoon;Kim, Mi-Kyoung
    • Korean Journal of Environmental Biology
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    • v.30 no.2
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    • pp.143-150
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    • 2012
  • To determine the spatial distribution of marine invertebrate communities in intertidal rocky shore on Dokdo, 10 times investigation was carried out at 7 stations during the year of 2009~2011. The marine invertebrate community can be divided into three different groups based on cluster analysis of Bray-Curtis similarity. As a first group, the pebble beach community, Omphalius rusticus, Monodonta perplexa, and Chlorostoma lischkei which were movable gastropod with dominant occurrence. Secondly, the still rocky shore community, O. rusticus, Serpulorbis imbricatus and Aplysia kurodai occurred dominantly. Finally, the wave-exposed rocky shore community which dominantly occurred by two sessile arthropods, Barnacles, Chthamalus challengeri and Pollicipes mitella. The three groups were likely to be determined by texture of substrate and hydrodynamic conditions of rocky shore in Dokdo. The results indicated that diversity of marine intertidal invertebrate community around Dok do was mainly affected by habitat characteristics and the surrounding physical properties.

Experimental Studies on Induced Traumatic Pericarditis and Myocarditis in Ruminants (반추수(反芻獸)의 창상성심낭심근염(創傷性心囊心筋炎)에 관(關)한 실험적연구(實驗的硏究))

  • Cheong, C.K.;Nam, T.C.;Seung, J.K.;Oak, J.W.
    • Korean Journal of Veterinary Research
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    • v.20 no.2
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    • pp.127-134
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    • 1980
  • This study was performed to obtain an accurate methods of diagnosis in early stage of traumatic pericarditis and myocarditis in ruminants. Korean native goats were used as experimental animal and traumatic pericarditis and myocarditis were induced by surgical intervention. The changes in clinical signs, hematological values, blood enzymes and electrocardigrams were observed for 14 days after operation. The results obtained were as follows: 1. Body temperature in experimental group of induced traumatic pericarditis and myocarditis was slightly increased than control group that was rumenotomized. Heart rate was increased in both groups but the increased rate was noticed remarkably in experimental group. There was no change in respiratory rate in experimental and control group. 2. Total leucocytes counts and neutrophil percentage maintained higher level after operation and lymphocytes percentage noticed reversed proportion to neutrophil in both groups. 3. Serum total protein concentration and alkaline phosphatase activities after operation showed a little lower levels than these values prior to operation. Serum glutamic oxaloacetic transaminase and lactic dehydrogenase activities in control group showed slight increase through all the experimental period, while in experimental group these activities were markedly elevated and an increase in serum lactic dehydrogenase activities was more remarkable comparing to serum glutamic oxaloacetic transaminase. 4. Electrocardiograms in control group did not show any abnormalities except for slight increase in heart rate. In experimental group the amplitude of QRS complex was increased in duration of experimental period. The transference from QRS complex to T wave was uncertain and S-T segment moved upward obliquely through electrical zero line.

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A Study about Correlations between the Interpretations of Autonomic Bioelectric Response Recorder (ABR-2000) and Diagnosis System of Oriental Medicine (DSOM) / 3D Blood Pressure Pulse Analyzer (3D-MAC) (생체전기자율반응 측정기와 한방진단시스템 및 맥진기 검사 해석의 상관성 연구)

  • Ok, Jin-Yoo;Lee, In-Seon
    • The Journal of Korean Obstetrics and Gynecology
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    • v.31 no.2
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    • pp.31-48
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    • 2018
  • Objectives: This study was performed to observe the correlations between the results of ABR-2000 and DSOM / 3D-MAC to evaluate the feasibility of ABR-2000 as a oriental medical diagnostic criteria. Methods: We studied 547 women visiting ${\bigcirc}{\bigcirc}$ hospital from December 2012 to June 2015. The subjects were categorized in two groups, 'Hypotonia' and 'Non-Hypotonia' by the result of ABR-2000 and assessed the result of DSOM, 3D-MAC for each group. The differences of pulse wave factors by group also studied. Results: 1. There was no significant difference between two groups about the output frequency of pathogenic factors in DSOM while the result showed the higher correlation in Hypotonia group in terms of the companion tendency of pathogenic factors and syndromes formed by the combination of pathogenic factors. 2. The pulse waves of Hypotonia group were mostly slow, weak, tense and stiff than Non-Hypotonia group. Conclusions: 1. In Hypotonia group, yin deficiency (陰虛) factor was frequently accompanied and consumption (虛損) of various organs based on the yin deficiency (陰虛) was observed. It means chronic and severe condition of exhaustion syndrome (虛勞). 2. The result of 3D-MAC also means pathological feature of yin syndrome (陰 證) and consumption (虛損). Besides, lower scores of Body Surface Area (BSA), body weight, and Body Mass Index (BMI) were associated with body weakness (體瘦), a symptom of exhaustion syndrome (虛勞).

Study on Factors Influencing the Disabled's Quality of Life: Focusing on Comparison between Employed and Unemployed Disabled People (장애인 삶의 질에 미치는 영향요인에 관한 연구: 취업자와 미취업자의 비교를 중심으로)

  • Jeon, Myeong-Sook
    • The Journal of the Korea Contents Association
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    • v.18 no.1
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    • pp.210-221
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    • 2018
  • The purpose of this study was to analyze how much demographic and disability-related characteristics influence the quality of life that employed and unemployed disabled people, and determine difference in the influence of those factors between the two disabled groups. For this purpose, the study utilized 1st-year(2016) data from the 2nd wave of the Korean Panel Study on Employment for the Disabled. The findings of this study can be summarized as follows. First, employment is a critical factor that influences the disabled's quality of life. Besides, there are some financial, socio-relational and physical factors on which that quality is heavily dependent. Second, employed disabled people's quality of life is even more influenced by financial factors, socio-relational factors and health state than demographic factors. Third, unemployed disabled people's quality of life is significantly influenced by some demographic factors like gender and age and some physical factors like disability grade and disability period as well as by factors found influencing employed disabled people's quality of life. Thus, the two disabled groups are different from each other in which factors influence their quality of life. Based on these findings, this study made suggestions for the disabled's better quality of life.

The Evaluation of Amenities of Rural Villages (농촌마을 정비 특성별 어메니티 평가)

  • 장은숙;전영미;박윤호
    • Journal of the Korean Institute of Landscape Architecture
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    • v.30 no.3
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    • pp.35-45
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    • 2002
  • This research is related to the evaluation of rural amenities. Since the UR negotiations, the wave of market liberalization has brought many difficulties to the rural areas. This paper serves to identify a number of important elements such as socialization, cultural and ecological resources and investigate the viability of rural areas. The purpose of this study is to evaluate rural amenities by evaluation indices and establish planning direction of amenities for rural areas. The data have been collected by methods of a field survey and a questionnaire survey. The evaluation indices have been defined as socialization, safety, amenity and convenience by several researches. Villages have been divided into two groups. Seven(Shimchon, Ibaek, Muan, Dokpyong-li, Imchin-li Hyangyang-li, Wonwol-li) have been newly constructed, six(baeksa, Mokmyon, yongho-li, shindyae-li, hwangdun·songgae) have been redeveloped. There are considerable differences in the degree of satisfaction between he two groups. The results are as follows: 1) socialization is very necessary for amenities in rural villages. Especially the values of the resident's interactions and management of the village are most important in the preparation of an amenity plan in rural areas. So the plans and establishment of public facilities are requisite for the residents community. 2) The convenience of rural public facility plans is necessary for the improvement of the farmers'living conditions. For planning the rural villages, special regards are paid to characteristics of the village, such as the former place of residence and occupations. 3) Newly constructed village should improve their socialization and the redeveloped types should try to get a better life for amenity and safety, The residents of the redeveloped types show relatively high degree of satisfaction with indices of resident community, living convenience facilities, and management of village. On the contrary, amenity and safety are good in newly constructed types. This study has taken into consideration the characteristics of rural villages. It makes a contribution to the redevelopment of rural villages and improves amenities in rural villages. It is recommended that more studies classify the resources of rural areas and measure amenities which are significant to city dwellers in the future.

The Effect of Disability Acceptance Mediated with Policy Trust on the Life Satisfaction: Group Comparison of Disability Type (장애수용이 정책신뢰도를 매개로 삶의 만족에 미치는 영향: 장애유형별 집단 비교)

  • Choi, Youn Jeong
    • 재활복지
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    • v.22 no.3
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    • pp.145-168
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    • 2018
  • The purpose of this study is to analyze the effect of disability acceptance mediated with policy trust on the life satisfaction and group difference of disability type. For this purpose, the raw data(2nd wave, 2st survey) of Panel Survey of Employment for the Disabled(PSED) conducted by the Korea Employment for the Disabled were used. Among the respondents, the data of 2,378 of the external physical disabled and 571 of mental disabled were analyzed. For the analysis, the structural equation model was used to verify the effect of mediation and group difference. The result of the study were as follows. First, disability acceptance of the disabled people effect on the life satisfaction by policy trust, and this was verified with partial mediated model. Second, In both groups, the external physical disabled and metal health disabled, disability acceptance and policy trust were the predictors of life satisfaction. Third, the difference in path coefficients between the two groups of external physical disabled and mental disabled was identified. Based on the results of this study, action plans were discussed to improve the life satisfaction of the disabled.

The relationship between precarious work and unmet dental care needs in South Korea: focus on job and income insecurity (한국 노동시장 불안정성과 미충족 치과의료의 관련성: 고용과 소득 불안정성을 중심으로)

  • Che, Xianhua;Park, Hee-Jung
    • Journal of Korean Academy of Oral Health
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    • v.42 no.4
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    • pp.167-174
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    • 2018
  • Objectives: The aim of this study was to analyze the accessibility of dental care services among individuals with precarious employment in South Korea. Methods: We used the $9^{th}$ wave of the Korean Health Panel data (2015) and included 7,736 wage and non-wage earners in our study. We determined precariousness in the labor market as a combination of employment relationship and job income, and categorized individuals based on this into the following four groups: Group A comprising those who report job and income security, Group B comprising those who experience job insecurity alone, Group C comprising those who report a stable job but low income, and Group D comprising those who experience both job and income insecurity. Accessibility to dental care services was determined by experience of unmet dental care needs and unmet dental care needs caused primarily by financial burden. Logistic regression analyses were used to assess the effect of precarious work on access to dental care services. Results: Individuals with job insecurity (Group B; OR=1.445; 95% CI=1.22-1.70) and both job and income insecurity (Group D; OR=1.899; 95% CI=1.61-2.24) were more likely to have unmet needs than the comparison group. Both groups B and D were also 2.048 (95% CI=1.57-2.66) times and 4.435 (95% CI =3.46-5.68) times more likely, respectively, to have unmet dental care needs caused by financial burden. Education status, health insurance, and health status were all also effective factors influencing unmet dental care needs. Conclusions: Unstable employment and low income resulted in diminished access to dental care services. Therefore, governments should consider health policy solutions to reduce barriers preventing individuals with employment and income instability from accessing adequate dental care.

A Study on the BTS Goods Values and Collaboration Brand Preference According to Fandom Type: Focusing on BTS Fan-club 'ARMY' (팬덤 동기에 따른 BTS 굿즈 가치와 협업 브랜드 선호도 연구: BTS 팬클럽 ARMY를 대상으로)

  • Lee, Minju;Yoo, Jiwon;Ko, Eunju
    • Journal of Fashion Business
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    • v.25 no.1
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    • pp.165-178
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    • 2021
  • With rise in economic activity of fandoms, fashion brands often collaborate with K-pop stars such as BTS to enhance brand preference and sales. This study analyzes why people engage in fandom activity and its effects on collaboration fashion brand preference by focusing on 'BTS' and fandom 'Army'. This study aims to provide information to establish marketing strategies by identifying the influence of fandom culture related to the Korean Wave and the fashion industry, and empirically analyzing factors affecting active customer formation for long-term growth. The data were collected from BTS fan club 'Army' and a total data sets were analyzed using SPSS25.0 statistics program. The findings of this research were as following. Frist, BTS fandom motivation were identified as Need for Approval, Communication Need, Professionalism Need, Need to Belong, Consumption Need and the BTS fan groups were categorized into 3 groups. Third, comparing BTS goods values and collaboration brand preference an excess in each group was revealed. This study is significant because it provides essential data for the marketing strategy of fandom market by comparing marketing effects of BTS with the characteristics of fandom consumers and identifying the different desires of each group. As a result of this research, it can be seen that BTS an influential leading brand, has been adopted, and the research direction of empirical analysis has been presented. In practice companies can select specific fandom targets by using the sub-levels of fandom types that have become clear and implement marketing strategies of the fandom market.