• 대한영양사협회학술지
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• 제23권4호
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• pp.408-430
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• 2017

The purpose of this study was performed to investigate dietary and lifestyle habits, dietary behaviors, and food frequency according to the level of smartphone addiction among 408 university students in Kyungnam province. Statistical analyses were performed using the SPSS software package. Based on using the Smartphone Addiction Poneness Scale, 28.4% were potential-risk smartphone users and while 13.2% were high-risk smartphone users. The levels of depression (P<0.05) and stress (P<0.05) and frequency of snacks (P<0.01) were higher in high-risk and potential-risk groups than in the normal group, and meal frequency was highest in the high-risk group (P<0.01). Percentages of using a smartphone at meal time (P<0.01) and snacking while using a smartphone (P<0.01) were higher in potential-risk and high-risk groups than in the normal group. Percentages of skipping meals (P<0.001) and slow eating speed (P<0.01) due to using a smartphone were higher in high-risk and potential-risk groups than in the normal group, and percentages of taste change (P<0.05) were higher in the high-risk group than in the potential-risk and normal groups. Percentages of exercise reduction (P<0.01), body weight increase (P<0.05), sleep disturbance (P<0.001), and increase in stress (P<0.01) due to using a smartphone were higher in the high-risk group than in the normal group. Scores of dietary behaviors avoiding salty food (P<0.01) and excessive drinking (P<0.001) were higher in the high-risk group than in the normal group. Scores for frequency of oil or nuts (P<0.05) and fatty meats (P<0.01) were highest in the high-risk group. Our results suggest that effective nutrition education programs are needed to solve unhealthy dietary and lifestyle habits from high-risk smartphone users in university students.

• 한국콘텐츠학회논문지
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• 제19권6호
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• pp.461-470
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• 2019

신장질환은 당뇨병환자에서 흔한 합병증이며, 알부민뇨 배설의 증가, 사구체여과율의 감소가 특징적이다. KDIGO 분류에 따라 6기 국민건강영양조사 원시자료를 이용하여 알부민뇨와 사구체여과율에 따라 특성을 분석하였다. 당뇨환자를 KDIGO의 분류에 따라, Low risk 72.0%, Moderate risk 19.3%, High risk 5.6%, Very high risk 3.0%이었다. 당뇨병 유병기간이 길어질수록 Low risk는 74.7%에서 52.2%로 감소하였고, Moderate~Very high risk는 25.4%에서 47.8%로 상승하였다. 위험요인은 CKD stage 1 (HR 2.064) ~ stage 4 (HR 11.049)로 고혈압의 위험도가 가장 높았다. 고혈압 유병기간에 따라 신장질환의 발생빈도는 상승하였고, 적정 혈압을 유지하는 군에서 신장질환의 위험도 0.42가 감소하였다. 고혈압 환자에서 적정 혈압으로 관리하는 군이 그렇지 않은 군보다 42%의 신장질환의 감소효과가 있었다. 그러므로 고혈압을 적정혈압으로 조절 및 관리하는 것이 신장질환의 예방에 있어 중요하다.

• Communications for Statistical Applications and Methods
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• 제15권6호
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• pp.825-835
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• 2008

계량경제학 분야에서 널리 쓰이는 MGARCH(multivariate GARCH)모형은 여러개의 시계열자료들의 변동성을 함께 모형화한다. 그러나 변수가 많아질수록 추정해야 할 모수의 수가 급격하게 늘어나는 문제점이 있다. 본 연구에서는 인자 모형을 통해 자료의 차원을 축소시킴로써 이러한 문제를 해결하고자 하였다. 국내의 주가수익률 자료에 통계적 인자 모형과 fundamental factor model을 적용하여 각각의 의미 있는 인자들을 얻은 후 이를 MGARCH모형에 적합시켰다. 또한 두 인자모형을 바탕으로 얻어진 최종 모형들의 MSE, MAD와 VaR(Value at Risk)를 계산하여 예측력을 비교하고자 한다.

• 한국건축시공학회:학술대회논문집
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• 한국건축시공학회 2021년도 봄 학술논문 발표대회
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• pp.295-296
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• 2021

With the recent diversification and complication of buildings, the functions of building are also developing. As much as the development of buildings, the machine or equipment used for them is also developing. Thus, all sorts of domestic/foreign industrial facilities and fire stations in the whole nation are using the electric shutter that could meet the insulation just like the exterior wall of general buildings, for bringing-in/storage and crime prevention/fire prevention. Currently, various types of electric shutters are used. Such wrong operation and poor management are causing many panel-falling accidents. This study researched the reduction of electric shutter panel-falling risk by reviewing the domestic/foreign laws and standards, and researching the new safety equipment. First, the causes for falling and accident types were drawn by analyzing the cases of electric shutter accidents. After that, a checklist as the measures for reducing the falling of electric shutter in building was suggested by analyzing the items for the inspection of electric shutter.

• 한국수산과학회지
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• 제56권3호
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• pp.341-346
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• 2023

This study aimed to suggest an alternative income generation (AIG) for local artisanal fisheries communities in the southern coastal area of Bangladesh, which is vulnerable to climate change. To analyze the problems of local artisanal fisheries caused by climate change, field surveys and in-depth interviews with fishermen and government officials were conducted. Livelihood risk factor (LRF) in the marine fishing sector included reduction of fishing days and fish production and damage to fishing vessels and fishing gear due to cyclone and sea-level rise. LRF in the aquaculture sector included cultured fish escape, reduction of aquaculture production, and water pollution due to Monsoon flood. A common challenge for two sectors was high interest rate on commercial loans. Small-scale tank aquaculture is recommended as AIG for securing income of artisanal fisheries communities. In the early stages of dissemination of small-scale tank aquaculture technology, it is necessary to prevent fishermen from struggling to repay high-interest rate loans through technology transfer and facility support by official development assistance. The aquaculture training center, along with the technical education, will also contribute toward expansion of local distribution network and marketing support to establish a value chain for local artisanal fisheries communities.

• 농촌의학ㆍ지역보건
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• 제23권2호
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• pp.193-204
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• 1998

Cardiovascular diseases are the leading cause of death and disability in Korea. Their risk factors can be classified as either modifiable or nonmodifiable and among modifiable factors are high bood pressure, elevated blood cholesterol, obesity and cigarette smoking. The purpose of this study was to evaluate the risk factors for the cardiovascular diseases in a rural community and to get basic data for the development of a community-based rick reduction intervention program. Evaluation involved population-based, cross-sectional samples of adult residents in a rurual community. We measured blood pressure, body fat percent by bioelectric impedance fatness analyzer and serum cholesterol and interviewed adult residents over 20-year-old age. Blood pressure was checked twice and hypertension was classified by the sixth report of the Joint National Committee on Detection. Evaluation, and Treatment of High Blood Pressure. The Cutpoints for high blood cholesterol was used National Cholesterol Treatment Guidelines and those for obesity was 25% in male. 30% in female. The results were as follows: 1. Prevalence of definitive hypertension was 59.7% in males and 54.4% in female. 2. Prevalence of hypercholesterolemia was 14.3% in male and 18.2% in female. 3. Prevalence of obese was 10.7% in male and 41.1% in female. 4. Among definitive hypertension, hypercholesterolemia, and obesity 52.1% possessed one risk factor, 12.6% two risk factors and 2.5% three risk factors in males. In females 41.4% possessed one risk factor and 27.6%. 5.7% respectively. 5. The smoking rate was 65.8% in males and 5.2% in females. Our results are used effectively for the community-based intervention towards cardiovascukr diseases risk reduction. However, because of limitations in our study design, further datas are needed including other risk factors and in-person clinical datas.

• 한국정보통신학회:학술대회논문집
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• 한국해양정보통신학회 2008년도 추계종합학술대회 B
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• pp.821-825
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• 2008

재난은 언제, 어디서 발생할지 알기 힘들뿐만 아니라 여러 가지 요인의 상호작용으로 전개양상 또한 복잡하다. 따라서 모든 재난을 정확히 예측하고 이에 대비하기는 사실상 불가능하다. 본 연구에서는 조직이 재해재난으로부터 안정적인 활동을 유지할 수 있도록 재해재난 경감정책의 개선안을 제시하고자 한다. 관련된 주요내용은 첫째, 위험분석을 통한 재난경감정책을 수립해야 한다. 둘째, 재난경감정책의 체계화가 필요하다. 셋째, 지방자치단체의 재난경감정책 활성화가 이루어져야 한다. 넷째, 선진 안전문화의 정착이 필요하다.

• 대한안전경영과학회지
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• 제17권4호
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• pp.13-22
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• 2015

Total accident rate in the construction industry is a very meaningful reduction to establish a comprehensive disaster reduction measures, including through the Survey, the disaster prevention projects whilst driving status and problem analysis in order to reduce the mature workers in the construction industry is growing rapidly in all disaster disasters (share) The days. It is urgent to establish a framework and measures that can identify the specific cause for this than for the middle-aged workers and disaster reduction in disaster reduction efforts, which continue to increase. Used as measures of information and data presented in the basic requirements of mature workers also been.

• 환경영향평가
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• 제19권3호
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• pp.259-270
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• 2010

We conducted human risk assessment for exposure to inhalation of chemical substances emitted from the storage tanks of petroleum refineries. To assess human risk, this study calculated chemical emissions from the external floating roofs on storage tank at petroleum refineries, as well as concentrations thereof in the ambient air using the K-SCREEN model, and then determined risk in accordance with the Reference Concentration (RfC) values and Inhalation Unit Risk criteria developed by the US Environmental Protection Agency. The results indicated that non-carcinogenic chemicals have a hazard quotient of less than 1, meaning they have an insignificant effect on human health for residential areas near the storage tanks. Among the known carcinogens, the hazard risk for benzene slightly exceeded $10^{-6}$, indicating the need for corrective reduction measures. The methodology for health impact assessment devised herein provides findings useful in decision making for policy makers and the general public with respect to construction of industrial complexes. However, the methodology proposed herein does have limitations, including discrepancy in results induced by use of U.S. data (due to the lack of usable domestic data). More systematic studies from related researchers will be needed to address these issues and produce more reliable outcomes.

• 한국건설관리학회논문집
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• 제2권4호
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• pp.62-68
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• 2001

최근 국내 건설업계는 건설경기 침체, 해외건설 수주부진, 치 열한 경쟁 등 어려운 상황에 직면한 실정인데 이에 본 연구에서는 효과적인 리스크관리 방법을 제시하고자 한다. 효과적인 리스크관리와 성공적인 사업관리를 수행하기 위하여 국내 상위 건설회사를 모집단으로 한 설문조사를 실시하여 건설관리에 의한 리스크인자와 리스크관리에 의한 리스크인자를 검정하여 리스크인자를 분석하고 미리 예측하여 원인을 분석하여 대응$\cdot$제어하면 리스크인자를 경감하게 되어 공사비, 공기, 품질을 향상시켜 양질의 건설공사를 수행 할 수 있게 하는 방안을 제시하는데 그 목적이 있다.