• Journal of Nutrition and Health
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• 제33권1호
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• pp.59-67
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• 2000

The objective of this study was to investigate nutritional status of middle aged Korean men exhibiting impaired glucose tolerance (IGT) and identify the risk factors related to IGT Data were collected from 163 men with a fasting blood glucose level from 115 to 139mg/dl(high blood glucose group: HBG) and 170 men with a normal fasting blood glucose level(control) aged from 40 to 59 years in both groups. Weight, body mass index(BMI) and percent body fat were significantly higher in high blood glucose(HBG) group than those of control group. Age, weight, BMI, percent body fat were positively related to blood glucose. There were no differences in exercise, smoking and family history of diabetes between two groups. Frequency of fat eating and overeating of HBG were higher than those of control group but frequency of sweet snacks intake of HBG was lower than that of control group. There was no difference in daily total energy intake in two groups. Total and supper energy intakes were positively associated with blood glucose. Percent energy intake of alcohol was significantly higher in HBG group and positively related to blood glucose, however there were no difference in daily intake of nutrients in two groups. Alcohol intake was positively related to BMI, but after adjusting BMI, there was no correlation between alcohol intake and blood glucose. Serum total cholesterol and triglyceride were significantly higher in HBG group than those of control group. Serum total cholesterol i,nd triglyceride were positively related to blood glucose and high density lipoprotein cholesterol was negatively associated with blood glucose. After adjusting BMI, serum triglyceride was positively related to blood glucose. In conclusion, weight, BMI, percent body fat and blood total cholesterol, low density lipoprotein cholesterol and triglyceride levels were positively related to blood glucose level of middle aged Korean men exhibiting impaired glucose tolerance. Their eating habits exhibited higher frequency of overeating, fast eating, high energy intakes of supper. (Korean J Nutrition 33(1) : 59-67, 2000)

• 한국대기환경학회지
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• 제8권1호
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• pp.29-37
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• 1992

The risk of benzo(a)pyrene for cancer in the ambient air of Seoul was assessed by using the extrapolation methods. The average daily lifetime exposure of benzo(a)pyrene in the ambient air of Seoul was calculated at 6.97-24.30ng/$m^2$/day, which was based on the occurrence analysis of benzo(a)pyrene in the residential(Bull Kwang Dong) and traffic areas(Shin Chon) of Seoul. Using the dose scaling based on body surface area in comparisons of toxicity for extrapolation from animal to human and mathematical models from the high dose region, the low-dose risk was estimated. The response probabilities were estimated by the tolerance distribution models; Probit, Logit and Weibull model. They were consistent with the observed ones at experimental dose region. The unit risk estimates of these models were too low to be used. One-hit and multistage model to prove more conservative risk was selected. As a redult, the lifetime unit risk of benzo(a)pyrene for cancer and virtually safe dose were calculated; One-hit model provided the risk 2.8 $\times 10^{-7}$ and 3.4ng/$m^3$, respectively and multistage model provided 5.2 $\times 10^{-7}$ and 1.9ng/$m^3$ as the more conservatives. The lifetime excess risk estimates of benzo(a)pyrene for cancer were calculated at 0.37-1.30 persons/million persons by one-hit model and 0.69-2.41 persons/million persons by multistage model, which was considered in without virtual risk.

• 통상정보연구
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• 제14권3호
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• pp.113-138
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• 2012

본 연구는 우리나라 중소제조기업의 수출성과 결정요인을 살펴보았다. 우선 기존 연구를 살펴보고, 수출성과 선행요인으로 기업가정신과 제품차별화 역량을 설정하였다. 또한, 수출성과의 선행요인으로서 제품차별화 역량을 기업가정신과 수출성과의 매개요인으로 분석하였다. 이로써, 기업가정신, 제품차별화 역량 그리고 수출성과의 통합적 모형을 구축하고 그 관계를 살펴보는 것을 연구의 목적으로 하였다. 실증분석에서는 국내 중소제조 수출기업 152개 표본에 PLS(Partial Least Square) 분석을 이용하였다. 분석도구는 SmartPLS2.0을 사용하였다. 분석 결과 중소제조기업 기업가의 위험감수성과 혁신성은 제품차별화 역량과 수출성과에 모두 긍정적 영향을 미쳤다. 제품차별화 역량 역시 중소제조 수출기업의 수출성과에 긍정적 영향을 준다는 점을 확인하였다. 매개효과 분석에서는 제품차별화 역량이 기업가정신 중 혁신성과 수출성과 사이에 유의한 매개효과를 나타냈다. 그러나 위험감수성에는 유의한 매개효과를 나타내지 못했다. 이러한 결과는 중소제조 수출기업에 제품차별화 역량이 필요할수록 적극적으로 혁신성향을 추구해야 한다는 점을 시사한다. 즉, 제품차별화를 시도할 때 위험감수성보다 혁신성향을 강조하는 것이 의미가 있음을 보여준다. 이에 본 연구는 제품차별화 역량의 매개효과를 분석한 점에서 동적역량이나 경쟁우위 관점에서 중소제조기업의 수출성과를 살펴보려는 연구에 이론적 시사점을 가진다. 또한, 중소제조 기업 경영자에게는 위험감수성과 혁신성의 역할이 모두 중요하지만, 낯선 환경의 외국시장 경쟁에 필요한 제품차별화 역량에는 혁신성향의 역할에 더 주목해야 한다는 실무적 시사점을 제시한다.

• 대한한방내과학회지
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• 제22권3호
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• pp.285-290
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• 2001

Purpose : Impaired glucose tolerance (IGT) was standardized in 1979 by the National Diabetes Data Group and the World Health Organization as a risk factor for type 2 diabetes, replacing groups such as 'borderline' and 'chemical' diabetes. The main clinical significance of IGT is as a risk factor for type 2 diabetes and as a risk factor for cardiovascular disease and as a component of the metabolic syndrome. In 1997 the American Diabetes Association(ADA) was proposed the new classification and diagnostic criteria for diabetes, which is strict with the diagnostic baseline of Diabetes from 140mg/dl to 126mg/dl. And it's main purpose is to prevent chronic complications by early diagnosis and treatments. In the oriental medicine, Supungsunkihwan has been used in treatments of Diabetes including IGT & NIDDM, however there is not enough studies about the its objective hypoglycemic effect. so in order to investigate whether there is hypoglycemic effect of Supungsunkihwan, clinical studies were performed with IGT and mild NIDDM patients. Methods : Prior to the study, fasting blood sugar(FBS) and postprandial 2hrs(PP2hrs) glucose were checked. In addition, ECG, cholesterol, TG, HbA1c levels were measured, and the dinical characteristics of patients that can be influence to the blood sugar level such as age, gender, rest type, diet type were surveyed. Supungsukihwan was administered for 7 days, and FBS & PP2hrs were measured again after the therapy. Result : PP2hrs glucose levels were decreased by the administration of Supungsunkihwan. And It's hypoglycemic effects has the correlation with age. That is, the more age increase, the more hypoglycemic effect decrease. Conclusion : Supungsukihwan has hypoglycmic effects on IGT & mild NIDDM patients and it is more effective when administrated to young patients relatively.

• 월간산업보건
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• 통권290호
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• pp.45-52
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• 2012

• 한국농림기상학회지
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• 제11권4호
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• pp.213-220
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• 2009

복숭아 나무 '장호원황도' 품종의 결과지에 대한 월동기간 중 생리적 내한성을 가리키는 지표로서 일별 기온에 의해 계산되는 휴면심도를 설정하였다. 휴면심도 추정모형의 최적모수(기준온도, 저온요구도)를 도출하기 위해 2008-2009 겨울 동안 총 12회에 걸친 실험을 수행한 결과, 내생휴면해제에 필요한 '장호원황도'의 기준온도 $5.7^{\circ}C$와 저온요구도 -108을 얻었다. 1992-2008년 기간 중 수원기상대 일 최고 및 최저기온자료를 이용하여 이 모형에 의해 '장호원황도'의 만개기를 예측하고 기존의 DVS모형과 회귀모형에 의한 예상 만개기와 비교한 결과 이 모형의 예측능력이 우수하였다. 이 모형에 의해 추정된 휴면심도를 선행연구에서 얻은 동해유발온도와 결합하여 동해위험확률을 계산할 수 있는 경험식을 도출하였다. 날짜와 최저기온이 주어지면 이 식에 의해 '장호원황도'의 갈변이나 발아장해 등 동해증상이 나타날 수 있는 확률, 즉 동해위험 지수를 미리 알 수 있으므로 복숭아 재배농가의 동해 경감에 기여할 것으로 기대된다.

• Clinical and Experimental Pediatrics
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• 제48권10호
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• pp.1076-1081
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• 2005

목 적 : 인슐린 저항성은 소아 및 청소년 비만증에서 내당능 장애, 당뇨병증, 심혈관계질환을 일으키는 중요한 위험요인 중 하나로 알려져 있다. 따라서 이 연구의 목적은 비만증 청소년이 소아에 비해 인슐린저항성이 증가하는가 그리고 성별에 따른 차이점을 규명하며 인슐린저항성에 영향을 미치는 요인들을 분석하고자 한다. 방 법 : 5-16세의 학생 9,837명을 신체검사하여 92명의 비만증 소아와 187명의 비만증 청소년을 선별하였고, 이들을 대상으로 당부하검사, 공복상태의 혈당, 인슐린농도, 총콜레스테롤, LDL-콜레스테롤, HDL-콜레스테롤, 중성지방의 농도, leptin, hs-CRP 및 adiponectin 농도를 측정하였다. 결 과 : 당부하검사를 통한 비만증 소아 및 청소년에서 성별에 따른 인슐린의 농도는 여자에서 인슐린의 농도가 높았다(P<0.05). 비만증 소아에서 4명(4.3%), 비만증 청소년에서 25명(13.3%)에서 내당능 장애로 나타났으며, 당뇨병으로 진단된 경우는 1례도 없었다. 인슐린 저항성은 여자, leptin, adiponectin, 중성지방의 농도와 밀접한 상관관계가 있었다(P<0.05). 결 론 : 비만증에서 인슐린 저항성은 소아보다 청소년에서 컸으며, 남자보다 여자에서 컸다. 또한 leptin 및 중성지방의 농도가 높을수록, adiponectin의 농도가 낮을수록 인슐린 저항성이 컸다. 소아 및 청소년 비만증에서 인슐린 저항성에 미치는 요인들에 관하여 좀 더 많은 연구가 필요하다.

• International Journal of Human Ecology
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• 제9권1호
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• pp.81-95
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• 2008

This paper examined the impact of psychological characteristics of consumers on household debt decisions. With the use of the Heckit models (the traditional approach to the selection problem) this study undertook an empirical study of the influence of a wide range of factors on financial decisions. This study used U.S. household-level data that offers detailed information on household debt, expectations about future income, expectations about future economic conditions, the amount of financial risk the respondent was willing to take, and the amount of time allotted for planning family savings and spending. This study showed that respondents with both substantial financial risk tolerance and positive expectations about future income were likely to have larger household debt showing that researchers and policy-makers need to consider consumer sentiment and preference measures in modeling behavior in credit markets. Additional results showed that household debt is significantly related to two key economic variables: income and net worth.

• 가정과삶의질연구
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• 제22권3호
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• pp.11-21
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• 2004

This study examined factors associated with the ownership of stock investments and the amount of stock investments of households using the 2001 National Survey of Family Income and Expenditure by National Statistical Office. Households with large amounts of income, savings, and liabilities were more likely to invest in stocks and have large amounts of stock investments. Also, households with young and male householders, highly educated householders, a number of children in school, and housing ownership were more likely to invest in stocks and have large amounts of stock investments. On the other hand, self employed households and dual income households were less likely to invest in stocks and have small amounts of stock investments.

• Journal of Communications and Networks
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• 제16권6호
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• pp.667-676
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• 2014

Connectivity is a crucial quality of service measure in wireless sensor networks. However, the network is always at risk of being split into several disconnected components owing to the sensor failures caused by various factors. To handle the connectivity problem, this paper introduces an in-advance mechanism to prevent network partitioning in the initial deployment phase. The approach is implemented in a distributed manner, and every node only needs to know local information of its 1-hop neighbors, which makes the approach scalable to large networks. The goal of the proposed mechanism is twofold. First, critical nodes are locally detected by the critical node detection (CND) algorithm based on the concept of maximal simplicial complex, and backups are arranged to tolerate their failures. Second, under a greedy rule, topological holes within the maximal simplicial complex as another potential risk to the network connectivity are patched step by step. Finally, we demonstrate the effectiveness of the proposed algorithm through simulation experiments.