강릉 남대천 부유입자유기물의 탄소안정동위원소 비와 C/N 비의 시·공간 변동

곽정현,박현제,Kwak, Jung Hyun,Park, Hyun Je 한국환경과학회 2020 한국환경과학회지 Vol.29 No.5

To understand the composition, quantity, and quality of Suspended Particulate Organic Matter (SPOM) in the Gangneung Namdae Stream, Korea, we examined spatiotemporal variations in water temperature, salinity, chlorophlly a (Chl a), Particulate Organic Carbon (POC) and nitrogen (PON), and carbon stable isotope (δ¹³C) of SPOM at six stations in June (pre-monsoon), July (monsoon), and September (post-monsoon) 2017. With increasing precipitation, the average POC and C/N values increased significantly in July than in June. In September, the values decreased with decreasing precipitation. The δ¹³C values showed irregular spatiotemporal fluctuations among the stations and periods, thereby suggesting a greater contribution of autochthonous organic matter to the pool of SPOM than that of allochthonous organic matter derived from upstream. In addition, the large and irregular changes in POC, C/N ratio, C:Chl a, and δ¹³C compared to that of PON were observed for all periods among the stations, indicating a serial discontinuity of the stream. Our results suggest that the Gangneung Namdae Stream is significantly influenced by the increase in freshwater discharge caused by heavy rainfalls during the summer monsoon and post-monsoon periods.

국민건강영양조사(2013~2015년)를 이용한 가구유형에 따른 중장년층의 만성질환 위험요인 연관성 분석

곽정현,최수빈,주다정,이민호,백진경,Kwak, Jung Hyun,Choi, SuBin,Ju, Da Jung,Lee, Minho,Paik, Jean Kyung 한국식품영양학회 2021 韓國食品營養學會誌 Vol.34 No.1

This study compared the lifestyle patterns, dietary patterns, and health care practices of Korean middle-aged people by household type, and ultimately analyzed their relationship with different risk factors for the prevalence and severity of metabolic syndrome. We analyzed the data from 4,755 subjects who were from 40 to 64 years old, and gathered our sample from participants of the Korea National Health and Nutrition Examination Survey from 2013 to 2015. Our results showed that single-person households had lower economic income levels, lower subjective health statuses, and higher levels of food instability than households with two or more individuals. The incidence of metabolic syndrome was 1.64 times higher in single-person households than in households with two or more individuals. After adjusting for potential confounding factors (sex, age, education, household income, smoking status, health status, and dietary factors), single-person households showed 1.75 times higher hypertriglyceridemia ORs than non-single-person households. In the conclusion of our study, we suggest that middle-aged people in single-person households may be at greater risk for metabolic syndrome and hypertriglyceridemia.

노년층 1인 가구와 2인 이상 가구의 영양소 섭취 및 대사증후군 유병률 비교 - 제6기 국민건강영양조사(2013~2015년) 자료 이용 -

최수빈,곽정현,정혜경,강해진,백진경,Choi, SuBin,Kwak, Jung Hyun,Chung, Hye-Kyung,Kang, Hae Jin,Paik, Jean Kyung 한국식품영양학회 2020 韓國食品營養學會誌 Vol.33 No.3

The purpose of this study was to investigate the comparison of nutrient intake and metabolic syndrome between single person households and non-single person households in elderly subjects. We analyzed data from 2,903 subjects ≥ age 65 who participated in the Korea National Health and Nutrition Examination Survey (KNHANES) 2013~2015. As a result, single-person households had lower income and economic ability, overall nutrient intake was deteriorated, and the proportion of high-carbohydrate intake was high, compared to non-single person households. After adjusting for potential confounders (sex, age, education, household income, economic activity, smoking status, alcohol consumption, walking frequency, health status, depression status, and dietary factors), the single-person household showed a tendency of 1.22-fold higher ORs of metabolic syndrome and 1.3-fold higher ORs of hypertriglyceridemia than the non-single-person household. We suggest that the single-person household may be associated with increased prevalence of metabolic syndrome and hypertriglyceridemia in the elderly subjects.

빨간배추가 고지방식이를 급여한 렛트의 장기무게 및 혈청지질 수치에 미치는 영향

김다원,곽정현,이효정,유수인,김동희,이민호,임용표,백진경,Kim, Da Won,Kwak, Jung Hyun,Lee, Hyo-Jeong,Ryu, Soo In,Kim, Donghee,Lee, Minho,Lim, Yong Pyo,Paik, Jean Kyung 한국식품영양학회 2019 韓國食品營養學會誌 Vol.32 No.6

Red Chinese cabbage is rich in anthocyanins, with beneficial effects on anti-obesity and lipid profiles. The purpose of this study was to examine the anti-obesity effects of red Chinese cabbage. Four-weeks old Spague-Dawley male rats were divided into four groups for six weeks as follow: Normal Diet (ND), High Fat Diet (HFD), HFD + Red Chinese Cabbage Diet (RCD), HFD + Red Chinese Cabbage Juice (RCJD). After six weeks, the liver weight was significantly higher in the HFD group than in the other groups, and the RCD and RCJD groups showed similar values to the ND group. The epididymal fats were significantly higher in all high fat diets (HFD, RCD, RCJD) than in the ND group and there was statistical significance in the post-tests when comparing the RCD and RCJD groups with the HFD group. Triglycerides significantly decreased in the RCD group. In conclusion, red Chinese cabbage is rich in anthocyanins, with beneficial effects on organ weight and lipid profiles.

신문기사를 통해 본 여성스포츠

이현정(Hyun Jung Lee),곽정현(Jeong Hyeon Kwak) 한국여성체육학회 2009 한국여성체육학회지 Vol.23 No.4

탄소 및 질소안정동위원소 조성에 의한 남해안 진동만 양식 미더덕의 먹이원 평가

문창호,박현제,윤성규,곽정현,Moon, Changho,Park, Hyun Je,Yun, Sung Gyu,Kwak, Jung Hyun 한국해양학회 2014 바다 Vol.19 No.4

To examine the trophic ecology of the ascidian Styela clava in an aquaculture system of Korea, stable carbon and nitrogen isotopes were analyzed monthly in S. clava, coarse ($>20{\mu}m$, CPOM) and fine particulate organic matters ($0.7<<20{\mu}m$, FPOM). CPOM (means: $-18.5{\pm}1.2$‰, $9.3{\pm}0.7$‰) were significantly higher ${\delta}^{13}C$ and ${\delta}^{15}N$ values than those ($-20.5{\pm}1.5$‰, $8.4{\pm}0.5$‰) of FPOM. S. clava had mean ${\delta}^{13}C$ and ${\delta}^{15}N$ values of $-18.9({\pm}1.7)$‰ and $11.6({\pm}0.7)$‰, respectively. S. clava were more similar to seasonal variations in ${\delta}^{13}C$ and ${\delta}^{15}N$ values of FPOM than those of CPOM, suggesting that they rely largely on the FPOM as a dietary source. In addition, our results displayed that the relative importance between CPOM and FPOM as dietary source for the ascidians can be changed according to the availability of each component in ambient environment, probably reflecting their feeding plasticity due to non-selective feeding irrespective of particle size. Finally, our results suggest that dynamics of pico- and nano-size plankton (i.e., FPOM) as an available nutritional source to S. clava should be effectively assessed to maintain and manage their sustainable aquaculture production. 2008년 4월에서 2009년 1월 사이에 진동만 미더덕의 섭식 생태를 설명하기 위하여 $20{\mu}m$ 이상(coarse particulate organic matter, CPOM) 그리고 $0.7{\mu}m$ 이상 $20{\mu}m$ 이하(fine POM)의 크기가 나누어진 각각의 부유입자유기물과 미더덕에 대한 ${\delta}^{13}C$ 과 ${\delta}^{15}N$ 값의 월별 변동을 비교 분석하였다. CPOM과 FPOM의 ${\delta}^{13}C$ 및 ${\delta}^{15}N$을 월별로 비교한 결과 전체적으로 CPOM(평균 $-18.5{\pm}1.2$‰, $9.3{\pm}0.7$‰)이 FPOM(평균 $-20.5{\pm}1.5$‰, $8.4{\pm}0.5$‰)에 비해 유의하게 높은 값을 나타내었다. 미더덕의 ${\delta}^{13}C$과 ${\delta}^{15}N$ 값은 각각 평균 $-18.9({\pm}1.7)$‰과 $11.6({\pm}0.7)$‰로 나타났는데, 이와 같은 비값들은 CPOM 보다는 FPOM의 월별 변동과 비슷한 경향을 보여 이들이 CPOM에 비하여 상대적으로 FPOM에 더 높은 영양 의존도를 가진다는 것을 강하게 시사해 주었다. 그러나 미더덕의 먹이원으로서 CPOM과 FPOM의 상대적인 중요성은 시기에 따른 각 요소의 가용성(availability)에 크게 의존하는 것으로 나타났는데, 이와 같은 결과는 부유입자물질의 크기에 관계없이 미더덕에 의한 비선택적 먹이 섭식을 잘 반영하는 듯 하였다. 본 연구 결과는 미더덕의 지속적인 양식생산을 유지하기 위해 가용 먹이원으로서 식물플랑크톤과 함께 미소 부유입자유기물의 유용성을 고려해야함을 잘 나타내 주었다.

한국전통사상을 통한 태권도정신의 정립

김경지(Kim Kyung-Ji),곽정현(Kwak Jung-Hyun) 한국체육과학회 2000 한국체육과학회지 Vol.9 No.1

Taekwondo which is a traditional martial art native to Korea, is well-known throughout the world at present. And our nation to is now wielding the power as a suzerain state of Taekwondo. Consequently, in Korea, the suzerain state of Taekwondo among the world, the study for the thesis of the theoretical background has been doing continually and steadily but the most fundamental fields of cultural society, especially the study in the side of philosophy among them has been very insufficient in fact. In the relationship of the Taekwondo spirits and Confucianism, the Ye, among In, Ui, Ye, Chi, Sin(benevolence, righteousness, propriety, wisdom and sincerity), is our manner and as the exchange of mutual character and the expression the student shows the respect to the teacher, is the attitude the junior serve the senior with a nobler personality with. Taekwondo takes Ye Shi Ye Chong for th foundation, which means to start with Ye to end with Ye, and helps to cultivate the spirits to overcome the death, to be loyal to the nation and to be dutiful to parents along with the sound mind and the high-leveled technique on the basis of the spirits of loyalty and filial piety. The Korean traditional ideas, as a view of living the thinking function of all the Korean nation has developed, have displayed the national intelligence in order to lead the in order to lead the history of the Korean nation and also is the whole product of national intelligence. Confucianism has given a help in the establishment of the spirits of Taekwondo by maintaining the peculiarity of the Korean society and bringing the maintainance of the relationship between superiors and inferiors and the respect for the elders through the observation of the propieties. Therefore, in order for the philosophical thesis of the spirits of Taekwondo, we should generalize all these ideas to establish proper for the emotions of our nation, and in addition, should do both comprehensive and microscopic study and mental philosophy for Taekwondo systematically and continually.

한국 성인의 비타민 D와 당뇨병의 관련성

황예린(Yerin Hwang),곽정현(Jung Hyun Kwak),김정훈(Junghoon Kim),최윤형(Yoon-Hyeong Choi) 한국환경보건학회 2018 한국환경보건학회지 Vol.44 No.2

Objectives: This study aimed to investigate the association between vitamin D deficiency and the risk of diabetes mellitus, and also examined whether their association is differed by sex and age. Methods: We analyzed the data from 28,135 subjects ≥20 years old who were registered for the Korea National Health and Nutrition Examination Survey (KNHANES) 2008-2014. Vitamin D was measured using serum 25-hydroxyvitamin D (25(OH)D) concentrations. Results: After adjusting for potential confounders (age, sex, education, income, total energy intake, smoking, physical activity, body mass index, and waist circumference), lower vitamin D was dose-dependently associated with a higher risk of diabetes mellitus (p-trend=0.004). When compared with the sufficient group (25(OH)D ≥30 ng/mL), the severe deficient group (25(OH)D <10 ng/mL) had 1.46 (95% CI 1.11-1.94) odds ratio for the risk of diabetes mellitus. This association was markedly strong in men and adults aged ≥40, whereas no significant association was observed in women and adults aged <40. Conclusions: We found that vitamin D deficiency may be associated with an increased risk for diabetes mellitus in Korean adults. Our findings suggest that intake of higher vitamin D may help reduce the risk of diabetes mellitus.

Association between phthalate exposures and walking speed in Korean elderly

Jeonggyo Yoon(윤정교),Junghoon Kim(김정훈),Jung Hyun Kwak(곽정현),Kyoung-Nam Kim(김경남),Hongsoo Kim(김홍수),Sungroul Kim(김성렬),Yun-Chul Hong(홍윤철),Yoon-Hyeong Choi(최윤형) 환경독성보건학회 2019 한국독성학회 심포지움 및 학술발표회 Vol.2019 No.4

세계화에 따른 태권도의 정체성 확립

김홍석(Hong Seok Kim),이진(Jin Lee),곽정현(Jung Hyun Kwak) 한국사회체육학회 2001 한국사회체육학회지 Vol.16 No.-

This paper shows a eatablishment of the identity as Taekwondo suzerain from globalization for a short time and shows direction of the purpose and necessity of this study. Taekwondo was the most globalized as a traditional martial art of the korea played an important role when Korea was given wider publicity. now, Taekwondo is not martial art only one nation. but was martial art of global for all universal people. The followings are program for globalization of Taekwondo. First, must establish of the identity of Taekwondo. Second, must be in clearly about history of Taekwondo. Third, must advance rapidly about a design park of Taekwondo. Forth, must develop a variety of goods as a charater about Taekwondo. Fifth, must achieve harmony and interchage between south and north Korea of Taekwondo.