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과채류 섭취를 통한 Neonicotinoid계 농약의 노출평가에 대한 확률적 접근 (Probabilistic Approach on Dietary Exposure Assessment of Neonicotinoid Pesticide Residues in Fruit Vegetables)

  • 백민경;박병준;손경애;김진배;홍수명;김원일;임건재;홍무기
    • 농약과학회지
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    • 제14권2호
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    • pp.110-115
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    • 2010
  • 본 연구에서는 우리나라 소비자를 대상으로 우리나라에서 재배된 과채류 섭취를 통한 neonicotinoid계 농약의 노출량을 확률적 접근법을 이용하여 평가하였다. 농약 잔류량을 2009년에 수행된 과채류 중 neonicotinoid계 농약 5종(acetamiprid, clothianidin, imidacloprid, thiacloprid, thiamethoxam)에 대한 모니터링 자료를 이용하였다. Neonicotinoid계 농약의 총 노출량을 개별 과채류별로 구분하여 확률적 평가를 실시한 결과 neonicotinoid계 농약 5종의 총 노출량의 극단값은 0.087~0.236 ${\mu}g$/kg/day의 범위를 보였다. 확정론적 접근법의 결과와 비교했을 때 총 노출량의 평균치는 거의 유사하게 나타났으며, 노출량의 $95^{th}$ percentile값에 서는 확률적 접근법의 결과가 확정론적 접근법의 결과에 비해 38.8 ~ 62.0%의 수준으로 낮게 나타났다. 총 노출량에 대한 민감도 분석을 실시한 결과, acetamiprid의 총 노출량은 딸기 섭취를 통한 노출량에 크게 영향을 받으며, 특히 딸기의 섭취량 보다는 딸기 중 acetamiprid 잔류량 수준에 더 크게 영향을 받는 것으로 나타났다. 이는 thiacloprid를 제외한 나머지 3종의 neonicotinoid계 농약에서 유사한 경향을 보였다.

대전.충청 지역 초.중학교 급식의 나트륨, 칼륨 함량 및 섭취량 조사 (Survey on Sodium and Potassium Content of School Meals as well as Sodium and Potassium Intake by Students in the Daejeon and Chungcheong Area)

  • 이은미;박유경;정우영;김미라;서은채;정래석;나미애;이진하;허옥순
    • 동아시아식생활학회지
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    • 제20권6호
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    • pp.853-862
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    • 2010
  • This study was conducted as a nationwide project in order to obtain data on the content and intake of sodium in school meals. For this purpose, we selected two elementary and two middle schools in Daejeon as well as four elementary schools in the Chungcheong area. We measured the sodium and potassium contents of 842 dishes as well as their intake levels over 154 days. Sodium content was analyzed using an AAS (Atomic Absorption Spectrometer). The average meal intakes of second and fifth grade elementary school students were 244 g/meal and 304 g/meal, respectively. The meal intake of middle school students was 401 g/meal. Boys tended to eat slightly more than did girls, and students tended to eat more in the spring than in the summer. The average sodium intake per meal was 642 mg (570 mg by elementary school students, 1068 mg by middle school students), which was 32.1% of the UL (Tolerable Upper Intake Level, 2,000 mg per day) according to the KDRIs (Dietary Reference Intakes for Koreans). The sodium intake per meal was not significantly differ between boys and girls or between spring and summer (p>0.05). This study provides fundamental data that can be used to establishment a nutrition policy concerning the adequate content of sodium in school meals.

식품 중 소르빈산의 사용실태 및 섭취량에 관한 연구 (Estimation of Concentrations in Foods and Their Daily Intake for Sorbic Acid in Korea)

  • 김희연;장영미;윤혜정;이창희;박성관;박선영;신일식;이종옥;진명식;이철원
    • 한국식품과학회지
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    • 제34권6호
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    • pp.1103-1109
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    • 2002
  • 전국 23개 식품위생검사기관을 대상으로 $1999{\sim}2000$년도의 2년간 소르빈산 분석검사결과를 수집한 후 연도별, 식품유형별 사용실태를 조사하고 국민영양조사자료에 근거하여 사용대상식품의 유형과 연령에 따른 소르빈산의 실제 섭취량을 산출하였다. 총검사수는 14,129건으로 2,561건(총검사수의 18.13%)의 소르빈산이 검출되었으며 소르빈산의 대상식품별 일일추정섭취량을 산출한 결과, 어육가공품에서 가장 높았다. 소르빈산의 일일추정섭취량은 $3.42{\sim}9.25\;mg/person/day$이었으며 $30{\sim}49$세대가 가장 소르빈산을 많이 섭취하는 것으로 나타났다. 국민영양조사표에 식품별 1인1일당 섭취량과 소르빈산의 평균검출농도로부터 일일추정섭취량을 산출한 결과, 20.40 mg/person/day로 소르빈산의 ADI를 국민평균체중 55 kg으로 환산한 1,375 mg/person/day와 비교하였을 때 매우 낮았다. 이 결과는 FAO/WHO에서 평가된 일일허용섭취량(ADI)의 1.48%이었으며, 사용가능대상식품의 이론적 최대섭취량(TMDI)의 33.03% 수준이었다.

치어 주문모형에 관한 연구 (Ordering Model of Fingerlings in Aquaculture Farm)

  • 어윤양;송동효
    • 수산경영론집
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    • 제48권3호
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    • pp.47-59
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    • 2017
  • Fish mortality is the most important success factor in aquaculture management. To order fingerlings considering the effect of mortality is a important problem in aquaculture farm. This study is aimed to decision the number and size of fry in aquaculture farm. This study build the mathematical model that finds the value of decision variable to minimize total cost that sums up the fingerling purchasing cost, aquaculture farm operating cost and feeding cost under mortality constraint. The proposed mathematical model involve biological and economical variables: (1) number of fingerlings (2) fish growth rate (3) mortality (4) price of a fry (5) feeding cost, and (6) possible order period. Numerical simulation model presented here in. The objective of numerical simulation is to provide for decision makers to analyse and comprehend the proposed model. When extensive biological and cost data become available, the proposed model can be widely applied to yield more accurate results.

농가경영컨설팅 추진현황과 성과 (Performances of Farm Management Consulting Project)

  • 강경하;정호근;박홍규;이민수
    • 농촌지도와개발
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    • 제8권2호
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    • pp.245-261
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    • 2001
  • The consulting industry had enjoyed growth rates over the past 20 years which show no signs of slowing in their momentum. Since 1995, it began to discuss institutionalization of consulting in the agricultural sector in Korea. Rural Development Adminstration has launched farm management consulting project by means of benchmarking for farming innovation in 1988, which consists of establishing consulting team, developing standard diagnosis form of sixty crops and materials, training consultants, having various public relations, and making information systems. Until October, 2001, sixty seven thousands of farmers have benefited on this project. It is now appreciated as a alternative for new agricultural extension approach. Analyzing the changes of farm management practice level through consulting shows improvement, which data have been stored in web database. It is expected that farm management consulting project be main stream of agricultural extension in this country.

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Simulation of the Temperature and Salinity Along $36^{\circ}N$ in the Yellow Sea with a Wave-Current Coupled Model

  • Qiao, Fangli;Ma, Ji-An;Yang, Yong-Zeng;Yuan, Yeli
    • Journal of the korean society of oceanography
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    • 제39권1호
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    • pp.35-45
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    • 2004
  • Based on the MASNUM wave-current coupled model, the temperature and salinity structures along $36^{\circ}N$ in the Yellow Sea are simulated and compared with observations. Both the position and strength of the simulated thermocline are similar to data analysis. The wave-induced mixing is strongest in winter and plays a key role in the formation of the upper mixed layer in spring and summer. Numerical experiments suggest that in the coastal area, wave-induced mixing and tidal mixing control the vertical structure of temperature and salinity.

Notes on Some New Species of Psathyrella

  • Seok, Soon-Ja;Kim, Yang-Sup;Kim, Wan-Gyu;Kwon, Soon-Woo;Park, In-Cheol
    • Mycobiology
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    • 제38권4호
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    • pp.323-327
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    • 2010
  • This study contains descriptions and illustrations of three new and noteworthy taxa of the genus Psathyrella from Korea. Among them, Psathyrella pervelatoid, P. koreana, and P. utriformcystis are new to science. All collections cited here are deposited in the Herbarium Conservation Center of National Academy of Agricultural Sciences.

Getah Virus에 대한 국내말의 항체보유상황 (Serological Survey of Horses in Korea for Evidence of Getah Virus Infection)

  • 이영옥;허영;김용희;설동섭
    • 대한수의학회지
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    • 제26권1호
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    • pp.93-96
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    • 1986
  • The prevalence of antibody to Getah virus was serologically followed among those horses in Korea. Blood samples were taken from 575 horses in February and 462 horses in September, 1985. Overall percentage of horses with seropositive to Getah virus was 37% in February and 47% in September. The data suggest that the Getah virus infection is endemic in Korea and the increase in prevalence may be associated with the seasonal activity of arthropod vectors. This entails preventive precautions of the horses against this viral infection before the entry into Korea.

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소비가치 관점에서의 친환경 수산물 제품 만족도의 선행요인 분석: 성별의 조절효과를 중심으로 (The Antecedents of satisfaction of eco-friendly seafood: The moderating effect of gender)

  • 강성호;허원무;박경도
    • 수산경영론집
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    • 제44권2호
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    • pp.51-68
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    • 2013
  • The objective of this study is to analyze how consumption value affects customer satisfaction toward eco-friendly seafood products. Moderating role of gender is also examined. For empirical validation of our model, data were collected from a cross-sectional survey of 307 consumers in the South Korea, who have bought a eco-friendly seafood, a representatives eco-friendly product. The results demonstrated several important findings. First, emotional consumption value, social consumption value and functional consumption value had significant positive effects on eco-friendly seafood product satisfaction, Second, interaction effect of social value and gender had a positive effect on satisfaction. Third, interaction effect of functional value and gender had a negative effect on satisfaction. Theoretical and managerial implications are suggested.

한국에서 농산물중 농약잔류 허용기준의 설정절차 (Procedures in Establishing Residue Limits of Pesticides on Food Crops in Korea)

  • 이미경;홍무기;박건상;최동미;임무혁;이서래
    • 한국식품과학회지
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    • 제37권4호
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    • pp.685-694
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    • 2005
  • Korean practices in tolerance setting of pesticide residues on food crops were compiled with an effort to harmonize with international standards. Based on scientific data including historical background, limit setting protocols, adoption of ADI values, food factors, nation's body weights, and regulatory margins which are required for the setting of maximum residue limits, necessary measures to be taken by Korean regulatory authorities were proposed.