비만 지표와 심혈관계질환 위험인자간의 상관성 및 복부비만지표의 유용성

하헌영,최보율,박항배,Ha, Hun-Young,Choi, Bo-Youl,Park, Hung-Bae 대한예방의학회 1997 예방의학회지 Vol.30 No.2

It is a well known fact that obesity is an important cause of cardiovascular disease, emphasized by many studies. Recently, cardiovascular diseaase has been found to correlate not only to the extent of obesity, but also the fat distribution of the individual; especially, focusing on obesity of the abdomen. Unfortunately, the proposed indices for abdominal obesity are numerous, and the results vary according to the index chosen. Three-hundred and twelve bus drivers in November, 1995, were chosen as subjects of this study. The author chose to measure serum lipid levels, fasting blood sugar levels and blood pressure, that are thought to be important risk factors of cardiovascular diseases. Obesity indices were calculated using anthropometric measurements. We were able to evaluate the significance of obesity indices by examining correlations between these indices and the risk factors of cardiovascular disease. The results obtained were as follows: 1. The abdominal obesity indices and risk factors of cardiovascular disease, the levels of total cholesterol in the serum, fasting blood sugar levels, and diastolic blood pressure, increased significantly according to age. 2. There was a significant difference in the abdominal obesity indices according to drinking and smoking habits controlled for age. Among the risk factors of cardiovascular disease, triglyceride and diastolic pressures had significant differences according to the presence or absence of a drinking history controlled for age. 3. Although all obesity indices showed significant correlations, the weakest correlation was between BMI and abdominal diameter index and the strongest correlation was between sagittal diameter and sagittal diameter matched for height. 4. There was a negative correlation between HDL-cholesterol and obesity indices. The weakest correlation was between fasting blood sugar levels and both SD and SDH showed correlations with the risk factors. 5. There was a significant correlation between SD and total cholesterol in the serum and fasting blood sugars controlled for age, drinking, and BMI. 6. After categorizing the subjects into 2 separate age groups at the 40 year mark, in the less than 40 you old age group, controlled for drinking and BMI, the results of comparitive studies have shown correlations between total cholesterol serum levels and waist-hip ratio, conicity-index, and SD. There were correlations between fasting blood sugar levels and SD, ADI, and SDH. There were no correlations between obesity indices and both total cholesterol serum levels and fasting blood sugar levels in the greater than 40 year old age group. There were significant correlations between abdominal obesity indices and total serum cholesterol or fasting blood sugar levels in the less than 40 year old age group, but no correlations in the age group over 40. These correlated factors between abdominal obesity and cardiovascular disease are assumed to exist in Korea as well. Furthermore, in this study a high correlation was found between SD, SDH and the risk factors of cardiovascular disease. Even when controlled for age, drinking, smoking, and BMI, the correlations between risk factors of cardiovascular disease and these indices exist. Therefore, the obesity indices, SD and SDH may prove to be important prognostic indicators or risk factors of cardiovascular disease.

Liver cirrhosis caused by chronic HBV after kidney transplantation in an HBsAg (-) recipient

하헌영,조아영,윤현주,선인오,이광영 대한내과학회 2018 대한내과학회 추계학술대회 Vol.2018 No.1

과채류에 대한 농약 사용실태 및 사용량 조사

하헌영,김광호,박재읍,한상균 한국농약과학회 2010 한국농약과학회 학술발표대회 논문집 Vol.2010 No.4

Effect of W on Stress Corrosion Cracking Susceptibility of Newly Developed Ni-Saving Duplex Stainless Steels

하헌영,이태호,김상식 대한금속·재료학회 2017 METALS AND MATERIALS International Vol.23 No.1

Effect of W on stress corrosion cracking behavior (SCC) of Ni-saving duplex stainless steels (Fe18Cr6Mn3Mo0.4N (2.13, 5.27)W, in wt%) was investigated in 4 M NaCl solution using a slow strain rate test method. The change in the W content from 2.13 to 5.27 wt% marginally affected the tensile properties of the investigated DSSs. Alloying W clearly improved the pitting initiation resistance and repassivation tendency of the investigated alloys, but the SCC susceptibility was not remarkably decreased by addition of W. The slight enhancement in the SCC resistance of the alloy containing 5.27 wt% W was revealed to be correlated with the accelerated galvanic corrosion between the ferrite and austenite phases as a result of the W partitioning preferentially into the ferrite phase which could encourage the propagation of pitting.

국내 논잡초 발생분포조사

하헌영,황기선,서수정,이인용,오영주,박중수,최준근,김은정,조승현,권오도,임일빈,김상국,성덕경,정영재,이욱재,김창석,이정란,박재읍,박기웅 한국잔디학회 2014 Weed & Turfgrass Science Vol.3 No.2

Surveys of weed species in paddy fields were conducted in Korea to identify weed occurrence from June toSeptember 2013. Total 3,434 sites of paddy fields in 155 City/Gun, eight Provinces were investigated. From the nation-widesurvey, 90 weed species in 28 families were identified and classified to 52 annuals, 3 biennials and 35 perennials. Based on theoccurrence ratio, the most weed species belonged to Poaceae (18 species). 17, 8 and 6 weed species belonged to Cyperaceae,Scrophulariaceae and Polygonaceae, respectively, and these 49 weed species in the most four families accounted for 54% of totalweed occurrence. The most dominant weed species in Korean paddy fields were Echinochloa spp. (17.4%), followed byMonochoria vaginalis (12.4%), Eleocharis kuroguwai (7.8%), Bidens tripartite (9.27%), Scirpus juncoides (6.2%) and Sagittariasagittifolia (6.1%). This information could be useful for estimation of future weed occurrence, weed population dynamics andestablishment of weed control methods in paddy fields of Korea. 본 연구는 전국 논의 재배양식별 잡초 분포현황을 알아보기 위하여 2013년 6월부터 9월까지 도 농업기술원, 농업 대학 및 관련 연구소 등 11개 기관에서 전국 8도 155개 시·군의 3,434지점에서 잡초분포조사를 수행하였다. 조사결과 2013년 현재 우리나라 논에는 일년생잡초가 52종, 월년생잡초 3종, 다년생잡초 35종을 포함한 28과 90종의 잡초가 발생하는 것으로 확인되었다. 발생한 잡초의과별구성을 보면 화본과 18종, 사초과 17종, 현삼과 8종마디풀과 6종 순으로 상위 4개 과가 포함하는 49종이 전체의 54%를 차지하였다. 조사된 잡초는 피 17.4%, 물달개비 12.4%, 올방개 7.8%, 올챙이고랭이 6.2%, 벗풀 6.1%순으로 우점하였다. 이번 연구결과를 이용하여 앞으로 전국 논잡초의 발생양상을 예측하며 잡초군락의 변화를 파악함으로써 체계적인 논잡초 관리방안을 마련할 수 있을것으로 판단된다.

벼 재배 농경지에서의 Sulfonylurea 계통 제초제 사용실태

하헌영,박성은,유아선,길근환,임양빈,이인용 한국잡초학회 2017 한국잡초학회 별책(학술대회 초록집) Vol.37 No.1

우리나라 엽채소류, 과채류, 과수류 및 벼 재배 지역에서의 농약 사용실태 조사

하헌영,박성은,유아선,길근환,박재읍,이인용,박기웅,임양빈 한국잔디학회 2016 Weed & Turfgrass Science Vol.5 No.4

농약의 오남용을 방지하고 안전한 농산물을 생산하기 위한 일환으로 농약 등록 후에 농가에서 사용되는 농약 사용실태 및 작물별 단위면적당 농약사용량을 조사하였다(2012- 2015). 약해피해에 대한 조사에서는 과채류가 14%로 가장높았고, 벼, 과수류, 엽채소류는 각각 11%, 11%, 8%순으로나타났다. 농약안전사용 수칙 준수 여부에 관한 7개 항목중 농약사용량 준수 등 6개 항목은 대부분 잘 지키고 있었으나, 보호구 착용의 비율은 상대적으로 낮았다. 단위면적당 농약사용량(kg a.i. ha−1)조사결과는 엽채소류 6종(1.65), 과채류 6종(4.93), 과수류 6종(10.98), 벼(3.16) 순이었으며, 선행 조사 보다 사용량은 대체로 감소하는 경향이었다. 이는 성분함량이 높은 농약보다 고 효율화된 농약개발과 함께사용량도 감소하고 있기 때문이라고 판단된다. 수도용 제초제는 Butachlor 등 43종의 농약 성분이 사용되었으며 단위면적당 1.3 kg이 사용되었는데, 벼에 사용된 농약 중 제초제는44%에 달하였다. 설포닐우레아(SU)계통 농약 사용은 9종으로서 2015년 단위면적당 사용량(kg a.i. ha−1)은 2015년 조사시점에는 2011년 11월에 새롭게 등록된 Metazosulfuron 0.0113 을 포함하여 0.0407로 2007년보다는 20% 낮고 2011에 비해서는 31% 높은 증가율을 보였으며, 살균제 및 살충제의 사용량 감소와는 달리 제초제 사용량은 현재와 같이 지속될 것으로 판단되었다. In order to investigate actual pesticide usage, this survey was carried out with farmers growing four crop groups, leaf vegetables, fruit vegetables, fruits, and rice from 2012 to 2015. Five hundred sixty farmers were selected in main crop production areas and were asked about their pesticide uses during the growing season. Investigations on pesticide damages to crop in recent 5 years showed that fruit vegetables had the highest proportion of damage at 14%, followed by rice at 11%, orchards at 11%, and leaf vegetables at 8%. Compared to the results of a pilot study which took place from 2009 to 2011, fruit vegetable damage increased by 4% while damage to rice and orchards decreased by 7-9%. This means continuous education on mixed spraying, usage methods, and precaution is required. In the survey on the safety guidelines for pesticide use, 6 items were well observed (89.0-95.0%), but one item for use of protective gear had the lowest observance (81.7%). A measure for protective gear for poisoning prevention is required. The survey of pesticide usage per area (kg a.i. ha−1) showed that 1.65, 4.93, 10.98, and 3.16 kg a.i. ha−1 of pesticides were applied to leaf vegetables (6 species), fruit vegetables (6 species), fruits (6 species), and rice, respectively, which decreased from the usage reported in the pilot study. This change was likely caused by more effective pesticides and fewer pest outbreaks; therefore, shipments of pesticides have been decreasing. In the case of paddy rice herbicides, 43 products, including butachlor, were used for 1.3 kg ha−1. Herbicides represent 44% of pesticides used in paddy rice.

국내 벼 재배 농가 대상 농약사용 현황 조사

하헌영,김민주,김성빈,김성우,박은성,손은호,손종곤,안윤정,이승윤,김남숙,소재성,이선영 한국농약과학회 2020 한국농약과학회 학술발표대회 논문집 Vol.2020 No.11

국내 과채류 재배지에서의 농약사용 실태

하헌영,강대진,박성은,이희동,이경일 한국농약과학회 2018 한국농약과학회 학술발표대회 논문집 Vol.2018 No.4

국내 벼 주요 재배지역의 농약 사용실태 및 제초제 사용량

하헌영,신욱철,임건재,박재읍,나동수 한국잡초학회 2012 한국잡초학회 별책(학술대회 초록집) Vol.33 No.1