• Title/Summary/Keyword: 95년

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The Association between Resting Heart Rate and Colorectal Cancer Prevalence in Korean adults: The Korea National Health and Nutrition Examination Survey (KNHANES) 2005-2014 (한국 성인의 안정시 심박수와 대장암 유병율의 관계: 국민건강 영양조사 2005년부터 2014년 자료를 바탕으로)

  • Min, Ji Hee;Lee, Dong Hoon;Kim, Ji young;Kang, Dong-Woo;An, Ki Yong;Jeon, Y Justin
    • 한국체육학회지인문사회과학편
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    • v.57 no.2
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    • pp.509-518
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    • 2018

  • The purpose of this study was to examine the association between resting heart rate (RHR) and the prevalence of colorectal cancer in Korean adults. A cross sectional analysis was performed using the Korea National Health and Nutrition Examination Survey (2005 to 2014). Total number of subjects were 10,564 adults aged over 19 years. The results showed that individuals in the highest quartile of RHR had a significantly higher prevalence of colorectal cancer (Odds ratio (OR) 2.27, 95% confidence interval (CI): 1.34-3.85 to OR 3.00, 95%CI: 1.30-6.92) compared to those in the lowest quartile. Futhermore, every 10 beat per minutes (bpm) increase in RHR was associated with 27% (95%CI: 1.03-1.58) increased prevalence of colorectal cancer. In addition, after stratification by age and gender, the result showed that older people (>65 years) in the highest quartile of RHR had a significantly higher prevalence of colorectal cancer compared to those who were in the lowest quartile of RHR. (male OR 3.19, 95%CI: 1.10-9.24 to OR 3.38, 95%CI: 1.18-9.73; female OR 2.90, 95%CI: 1.13-7.42 to OR 5.59, 95%CI: 1.20-25.99). In this study, we examined the feasibility of RHR as a predictive factor of colorectal cancer prevalence. Moreover, we found that RHR was closely related to the prevalence of colorectal cancer in the age of over 65 years.

  • https://doi.org/10.23949/kjpe.2018.03.57.2.35 인용

Variations of Geomagnetic Field in Korea (우리나라의 지자기장의 변화)

  • 윤홍식
    • Journal of the Korean Society of Surveying, Geodesy, Photogrammetry and Cartography
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    • v.17 no.4
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    • pp.331-338
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    • 1999

  • This paper describes the variations of geomagnetic field by analyzing the geomagnetic observation data, which spanned the period from 1918 through 1944 and the global geomagnetic model in Korea. Geomagnetic data observed at Incheon in the period of 1918~1944 and global geomagnetic model (IGRF-95) were obtained from the World Geomagnetic Data Center. In this study, the variations of geomagnetic declination is estimated as $1^\circ{50'}$ from 1918 to 2000 and the variation rate is given as the nearest 1'20"/yr. The total variation of inclination is about 38' for 82 years and the variation rate is estimated as the nearest 27"/yr."/yr.;/yr.

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A Comparison of Dietary Behaviors of Korean Adolescents before and during the COVID-19 Pandemic (코로나-19 유행 이전과 코로나-19 유행 시기의 청소년 식생활 행태 비교분석)

  • Lee, Jung Woo;Kim, Yookyung
    • Journal of Korean Home Economics Education Association
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    • v.35 no.2
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    • pp.61-72
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    • 2023

  • This study examined the changes of the dietary behaviors of Korean adolescents during the COVID-19 pandemic. Data were obtained from 227,139 students aged 12-18 who participated in the Korean Youth Risk Behavior Survey from 2018 to 2021. The participants were divided into two groups: 117,343 students from the 2018-2019 survey and 109,796 from the 2020-2021 survey. Multiple regression analyses were used to calculate the adjusted odds ratio (AOR) for dietary behavior changes between the two groups. The AOR for consuming carbonated beverages among those who consumed three or more times per week compared to those who did not consume carbonated beverages at all was 0.81 (95% confidence interval [CI]: 0.78-0.84), which significantly decreased during the COVID-19 pandemic (p<0.001). Similarly, the AOR for consuming sweetened beverages between those with three or more times and not at all per week was 0.69 (95% CI: 0.67-0.72) (p<0.001). In contrast, there was a significant increase in the AORs for consuming fast food (AOR: 1.15, 95% CI: 1.11-1.20) and skipping breakfast more than three times per week (AOR: 1.23, 95% CI: 1.20-1.26) during the same period. Fruit intake decreased during the COVID-19 pandemic (AOR: 1.26, 95% CI: 1.21-1.31). In conclusion, the COVID-19 pandemic had both positive and negative impacts on the dietary habits of Korean adolescents.

  • https://doi.org/10.19031/jkheea.2023.6.35.2.61 인용 PDF

Boeing 717 개발 동향 - 보잉사는 과연 Regional Jet 시장으로 진출할까?

  • Jo, Ok Chan
    • Aerospace Industry
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    • v.60
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    • pp.18-23
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    • 1998

  • 1998년 1월초 보잉사는 옛 맥도널더글라스사에서 개발해온 소형여객기 MD-95-30을 새로이 보잉 717-200으로 개칭하고 개발·생산을 계속한다고 발표했다. 동 717 모델의 명칭은 40여년전인 1956년 8월 31일에 처녀 비행한 미공군의 KC-135A Stratotanker 공중급유기에 주어진 이름으로 MD-95는 717의 기종명을 가진 두번째 항공기가 되었다.

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