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      • KCI등재

        COVID-19 팬데믹 전후의 한국 청소년 24시간 행동습관 변화

        오정우,김도희,김성수,김연수 대한스포츠의학회 2022 대한스포츠의학회지 Vol.40 No.4

        Purpose: This study was performed to analyze the changes in the 24-hour movement behavior of Korean adolescents during the coronavirus disease 2019 (COVID-19) pandemic, focusing on physical activity (PA) pattern. Methods: The study used data obtained from the 15th (2019) and 16th (2020) Korea Youth Risk Behavior Survey, targeting a total of 112,251 adolescents. For assessing the changes before and during the pandemic, complex samples cross-tabulation and logistic regression models were used to calculate the odds ratio (OR) and confidence interval (CI). Results: During the pandemic, as compared to before the pandemic, the rate of male students who met the PA guidelines (a total of ≥60 minutes of moderate-to-vigorous intensity physical activity daily) decreased. The rate of students who met the sedentary behavior (SB) guidelines (recreational SB of <2 hours/day) decreased by about 50%, and there was no significant change in sleep. The OR (95% CI) for students who complied with 24-hour movement behavior guidelines was 0.69 (0.56–0.85). Conversely, the OR (95% CI) for students who were not compliant with any of the three recommendations was 1.50 (1.41–1.61). A notable finding is the rate of students who met the vigorous PA (3 days/week) decreased, but the rate of students who met the strength training (3 days/week) increased during the pandemic, which suggests the possibilities for a new trend in PA in the upcoming post-COVID-19 era. Conclusion: Policymakers should pay attention to changes in movement behaviors observed in adolescents during the pandemic and use the current crisis as an opportunity to respond to the post-COVID-19 era.

      • KCI등재

        상수도 관로내에서의 THMs 생성특성

        오정우,윤재홍 ( Jung Woo Oh,Jae Heung Yoon ) 한국물환경학회 1998 한국물환경학회지 Vol.14 No.2

        The characteristics of THM formation in a water distribution system is inspected by the analysis of measured data such as chlorine residual, DOC, UV_(254), temperature and pH. The result shows that THM concentration increases by 30% or less in the distribution system as the distance from water treatment plant increases. THM formation also increases with the increase of temperature, DOC, and UV_(254). On the contrary to the theoretically obtained result, in which THM formation increases as pH increases, the THM formation in the distribution system decreases as pH increases. This is caused by the complicated interactions among the factors of water quality. It is shown that UV_(254), is more effective than TOC or DOC as a measure of THM precursors. In addition, the effect of water quality on other disinfection by-products should be considered when THM formation is intended to be reduced by controlling water quality.

      • KCI등재

        백곡<SUP>栢谷</SUP> 정곤수<SUP>鄭崑壽</SUP>의 가족사랑과 가문의식 연구

        정우락(鄭羽洛) 한국국학진흥원 2018 국학연구 Vol.0 No.37

        본고는 백곡 정곤수에 관한 최초의 본격 연구로, 그의 가족사랑과 가문의식을 집중적으로 탐구한 것이다. 임란을 맞아 청병진주사請兵陳奏使로 활약한 나라사상도 그의 가족사랑과 가문의식의 확장이라는 입장이다. 정곤수는 전통적인 가국논리家國論理에 입각한 유가주의를 견지하고 있었기 때문이다. 정곤수의 선세先世는 고려왕조에 벼슬을 하면서 환력과 학문으로 명성이 있었데, 이색李穡의 ‘서원대성西原大姓’은 이를 두고 한 발언이다. 이러한 가계를 바탕으로 정곤수는 개국공신 정총鄭摠의 주손으로 본생가인 성주와 양가인 서울 사이를 오가며 생활하게 된다. 정곤수의 가족사랑은 양가와 본생가에 동시에 나타났고, 특히 본생가의 재종형 정괄鄭适과 재종제 정구鄭逑에 대한 사랑은 각별한 것이었다. 가문의식은 가승이나 『서원세고西原世稿』를 만들고, 가문 관련 글을 작성하거나 묘갈 등을 세우는 것으로 구체화되었다. 여기에는 그의 가문이 동국명가라는 자부심이 게재되어 있었다. 특히 가문을 지탱하는 사상적 기반으로 ‘공경사상’을 들고, 이것이 진외증조부 김굉필을 거치면서 도학적 수양론으로 발전해가는 것을 보였다. 수제치평修齊治平의 유가적 논리에 따른 정곤수의 가족사랑과 가문의식은 애국의식으로 적극 표출되었다. 개국공신의 주손으로서의 자부심과 국가에 대한 헌신이 맞물리면서 나라사랑은 그에게 부여된 당연한 책무였기 때문이다. 우리는 여기서 ‘수신’이 ‘제가’로, ‘제가’가 다시 ‘치국’으로 확장되는 것과 함께, 역으로 ‘치국’이 ‘제가’로, ‘제가’가 다시 ‘수신’으로 수렴되는 순환구조를 이해하게 된다. 이러한 순환구조는 결국 ‘수기치인’이라는 유가 논리에 근간을 두고 있는 것이라 하겠다.

      • KCI등재

        전립선생검에서 비전형적작은꽈리증식증으로 진단된 환자의 재생검 결과

        오정우,김윤범,양승옥,이정기,김윤정,정태영,심홍방 대한비뇨의학회 2009 Investigative and Clinical Urology Vol.50 No.3

        Purpose: Atypical small acinar proliferation (ASAP) denotes the presence of suspicious glands with insufficient cytological architecture for a definitive prostate cancer diagnosis. We evaluated the subsequent prostate cancer detection rate of rebiopsy in patients with an initial diagnosis of ASAP. Materials and Methods: Between January 2003 and December 2006, 1,416 men with suspected prostate cancer underwent a transrectal ultrasound- guided prostate biopsy, and 214 (15.1%) were diagnosed as having ASAP. Ninety-five of the 215 patients underwent at least one more biopsy. We evaluated the cancer detection rates after rebiopsy. Results: In men with ASAP, 36 patients (37.9%) had prostate cancer. The cancer detection rates of the 1st, 2nd, and 3rd rebiopsies were 30.5%, 23.8%, and 40%, respectively. Mean patient age and prostate-specific antigen did not differ significantly between the prostate cancer and noncancer groups after rebiopsy. Prostate volume, however, was significantly smaller in the cancer group (p<0.05). Conclusions: Our results showed a detection rate for prostate cancer of 37.9% after an initial diagnosis of ASAP, which indicates that an initial diagnosis of ASAP mandates rebiopsy. Purpose: Atypical small acinar proliferation (ASAP) denotes the presence of suspicious glands with insufficient cytological architecture for a definitive prostate cancer diagnosis. We evaluated the subsequent prostate cancer detection rate of rebiopsy in patients with an initial diagnosis of ASAP. Materials and Methods: Between January 2003 and December 2006, 1,416 men with suspected prostate cancer underwent a transrectal ultrasound- guided prostate biopsy, and 214 (15.1%) were diagnosed as having ASAP. Ninety-five of the 215 patients underwent at least one more biopsy. We evaluated the cancer detection rates after rebiopsy. Results: In men with ASAP, 36 patients (37.9%) had prostate cancer. The cancer detection rates of the 1st, 2nd, and 3rd rebiopsies were 30.5%, 23.8%, and 40%, respectively. Mean patient age and prostate-specific antigen did not differ significantly between the prostate cancer and noncancer groups after rebiopsy. Prostate volume, however, was significantly smaller in the cancer group (p<0.05). Conclusions: Our results showed a detection rate for prostate cancer of 37.9% after an initial diagnosis of ASAP, which indicates that an initial diagnosis of ASAP mandates rebiopsy.

      • KCI등재

        남생이의 성적 이형성

        오정우,남상헌,이성경,강정훈 국립문화재연구원 2023 헤리티지:역사와 과학 Vol.56 No.1

        In this study, a total of 21 parts of the head, carapace, and plastron of 21 tortoises were examined to investigate the characteristics of male and female sexual dimorphism of the Reeve’s turtle (Mauremys reevesii), a natural monument in Korea. The ratio values of a total of 19 areas were derived from Head Length (HL) and Carapace Length (CL). As a result of comparing the ratio values, it was found that male tortoises had larger head length, head width, and head height than females compared to the size of the carapace. Since females grow eggs inside the body through internal fertilization after mating, female carapaces are judged to be larger than males overall. As a result of statistical analysis of the ratio values of the measured values, Plastron Length (PL), Bridge Length (BL), Gular Length (GL), Interhumeral Length (IH), Interanal Length (IAN), Femoral-Anal seam (FA) and Head Height (HH) showed statistically significant differences. Statistically significant in the part of the plastron, it is judged that the tortoise acts directly on each deck of the plastron as it grows. In addition, the head size of male tortoises was smaller than that of females, but it was found to be larger in proportion. It is considered that the tortoise has a rather large head compared to the body due to the male's habit of shaking his head and courtship behavior before mating. This study, we were able to identify the characteristics of sexual dimorphism in Reeve’s turtle. However, since most of them were rescued, it was not possible to accurately determine habitat and age. In the future, if additional studies are conducted on individuals with clear habitats and ages, it is expected that the characteristics of the physical differences that develop as they grow can be identified. 본 연구는 천연기념물인 남생이(Mauremys reevesii )의 암컷과 수컷의 성적 이형성의 특징을 알아보기 위해 총 21 마리의 남생이를 머리, 배갑(Carapace), 복갑(Plastron)의 21개의 부위를 머리길이(HL)와 배갑길이(CL)를 기준으로 총 19개 부위의 비율 값을 도출하였다. 비율 값을 비교한 결과 남생이 수컷은 암컷보다 머리길이, 머리폭, 머리높이가 더 크고, 배갑과 복갑의 경우 모든 측정부위에서 암컷이 수컷보다 큰 것을 알 수 있었다. 암컷은 짝짓기 후 체내 수정을 통 해 산란 전까지 체내에서 알을 성장시키기 때문에 암컷이 전체적으로 수컷보다 큰 것으로 판단된다. 측정된 수치의 비율 값을 통계 분석한 결과, 복갑길이(PL), 골교길이(BL), 후갑판길이(GL), 견갑판길이(IH), 항갑판길이(IAN), 고-항갑판길 이(FA), 머리높이(HH)에서 통계적으로 유의한 차이를 보였다. 복갑의 부위에서 통계적으로 유의한 것으로 보아 남생이 는 성장함에 따라 복갑의 각 갑판에 직접적으로 작용하는 것으로 판단된다. 또한, 남생이 수컷의 머리 크기는 암컷 보다 작지만 비율적으로 봤을 때 더 큰 것을 알 수 있었다. 남생이는 교미 전 수컷이 머리를 흔들며 구애행동을 하는 습성으로 인해 체구에 비해 오히려 머리가 더 큰 것이라 사료된다. 이번 연구를 통해 남생이의 성적 이형성 특징을 파악할 수 있었다. 하지만 대부분 구조된 개체가 대부분이기 때문에 서식환경과 연령을 정확히 파악할 순 없었다. 추후 서식지와 연령이 명확한 개체를 대상으로 추가적인 연구를 진행한다 면 성장하면서 발달하는 신체적 차이에 관한 특징을 규명할 수 있을 것으로 보인다.

      • KCI등재후보

        七月詩派의 流派적 範疇와 系譜性에 대한 小考

        鄭雨光(정우광) 중국문화연구학회 2012 중국문화연구 Vol.0 No.21

        The purpose of this study is to illustrate the July Poetry Society’s category, especially focusing on its poetic genealogical tree during the War against Japan and the Civil War. The first step in mobilizing poets to support the anti-Japanese literary trend was taken in September 1932 with the poets of the Chinese Poetry Association 中國詩歌會. The sympathy on Chinese sufferings let many Chinese poets advocate a proletarian-oriented poetry before the advent of the Chinese Poetry Association. But the poets of the League of Left-wing were significantly full of adolescent fantasies for the proletarian revolution. As a result of this, their poetic language and imagery remain curiously abstract, formulaic, and propagandistic. These poems are failure to stir the feelings of others, because they are vacant in content and low-grade in style. Even though the poets of the July Poetry Society received the influence of both poets of the League of Left-wing and the Chinese Poetry Association, their poems were sincere and good enough to show personal point of view with portraying the simple people’s living hardship under the years of the Anti-Japanese Resistance (1937-1945). Part Two examines three major poets, such as Zang Kejia 臧克家(1905-2004), Tian Jian 田間(1916-1985), and Ai Qing 艾靑(1910-1996) and their poetic influence on the birth of the July Poetry Society. But these three poets are excluded from the members of the July Poetry Society in this research. Part Three analyzes the poetry series and magazines published by the July Poetry Society, especially focusing on Hu Feng 胡風(1902-1985). In Part Four, the re-illumination of the poets of the July Poetry Society in the early 1980s was the result of long and painstaking adventure that Chinese poets had been finding a high ideal of being the model poetry of realism, quote unquote, “the convergence of poet’s personal feelings and national spirit.”

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