• 대한수의학회지
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• 제13권1호
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• pp.57-62
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• 1973

The antibiotics are usually used for the medical treatments or the other purpose for cow and almost of them are transfered to milk. Moreover a serious problems on public health are caused by misuse or overuse of antibiotics. These studies were conducted to determine the rise and fall of antibiotics in the raw milk which is milked from the cow treated with antibiotics. The number of samples examined were 500 which were taken from 36 cows, and the antibiotics in milk were detected by cylinder plate assay method. The results were as follows: 1) When penicillin, chloramphenycol and streptomycin were infused into a udder, they were detected up to the period of 84 hours, 36 hours and 60 hours after injection in the milk from the same udder, however in the milk from the other udder streptomycin was not detected but penicillin and chloramphenycol were detected up to 72 hours and 24 hours after injection. When streptomycin and penicillin were injected intramusculary, streptomycin was not detected in the milk but penicillin was detected up to 60 hours after injcetion. 2) When penicillin, streptomycin and chloramphenycol were infused into the udder, the lesser amount of milk was produced, the more antibiotics were detected in the milk. 3) It is necessary policy for the public health to inhibit to be sold the milk up to 3 days or more after the injection on antibiotics or to add food blue to mastitis drugs.

• 대한수의학회지
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• 제30권2호
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• pp.255-260
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• 1990

This study was conducted to examine the enteropathogens and clinical aspects of diarrhea of the 211 Korean native calves during the suckling period. The experimental results were summerized as follows: 1. The 206 Korean native calves (97.6%) were affected with diarrhea during the suckling period. 2. Of 156 diarrheal feces tested, Rotavirus were detected from 108(69.2%) feces of $K^+99$ E coli were detected from 23(14.7%) feces and Eimeria spp were detected from 33(21.2%) feces. But Salmonella spp and Cryptosporidium spp were not detected. 3. Rotavirus were detected from 2 to 84 days of life, $K^+99$ E coli were detected from 5 to 54 days and Eimeria spp were detected from 33 to 84 days of life. 4. Physical appearances of the diarrheal feces were not affected specifically according to the enteropathogens, but were affected by the severity of diarrhea and the diets.

• 한국멀티미디어학회논문지
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• 제24권2호
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• pp.305-311
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• 2021

One of the highly reliable object tracking methods is to trace objects by associating objects detected by deep learning. The detected object is represented by a rectangular box. The box has information such as location and size. Since the tracker has motion information of the object in addition to the location and size, knowing additional information about the motion of the detected box can increase the reliability of object tracking. In this paper, we present a new method of reliably estimating the moving direction of the detected object in underground parking lot. First, the frame difference image is binarized for detecting motion energy, change due to the object motion. Then, a cumulative binary image is generated that shows how the motion energy changes over time. Next, the moving direction of the detected box is estimated from the accumulated image. We use a new cost function to accurately estimate the direction of movement of the detected box. The proposed method proves its performance through comparative experiments of the existing methods.

• 동의생리병리학회지
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• 제22권4호
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• pp.948-953
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• 2008

The purpose of this study was to analyze harmful heavy metals, sulfur dioxide and residual pesticides in 27 kinds of oriental medical materials. This study was carried out on 27 samples of oriental medical materials. The GC-ECD(Varian, CP-3800) was used to analyze residual pesticides. ICP-OES(Varian, Vista-MPX) was used to analyze lead, arsenic, cadmium. Mercury was analyzed by amalgamation method. A modified Monier-Williams method was used to analyze sulfur dioxide. Arsenic was detected less than 3(mg/kg) in 14 samples and was not detected 13 samples. Lead was detected less than 5(mg/kg) in 15 samples and was not detected 12 samples. Mercury was detected less than 0.2(mg/kg) in 15 samples and was not detected 12 samples. Cadmium was detected more than 0.3(mg/kg) in 3 samples was detected less than 0.3(mg/kg) in 16 samples and was not detected 11 samples. A few residual pesticides was detected, but all residual pesticides was safe. Sulfur dioxide was detected in all samples, but all residual sulfur dioxide was safe.

• Journal of Applied Biological Chemistry
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• 제63권1호
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• pp.9-22
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• 2020

이 연구는 농산물의 원산지에 따른 검출 농약을 조사하여 대한민국의 수입 바나나 중 잔류농약 안전 관리 자료로 활용하고자 하였다. 미국, 일본, EU, 영국 및 대한민국의 2007에서 2018년까지 바나나 중 잔류농약 검사 결과를 활용하여 검출 농약, 검사 건수, 농약 검출 건수 및 검출량으로 정리하였다. 이들 바나나의 잔류농약 검사에서 검출된 농약은 총 109종이었으며, 전체 검사 건수는 206,894건이었다. 이 중 9,483건에서 잔류농약이 검출되었으며, 농약 검출률은 4.58%였다. 검출된 농약은 chlorpyrifos, imazalil, methyl-bromide, azoxystrobin, carbendazim, pretilachlor 및 thiabendazole 등 이었으며, 이 농약들의 검출률은 10.62-24.62% 범위였다. Chlorpyrifos가 검출 건수에서 가장 많이 검출되었으며, 다음으로 imazalil, azoxystrobin, thiabendazole, bifenthrin 및 carbendazim 순이었다. EU, 일본, 미국, 영국 및 대한민국의 잔류농약 검사에서 각각 85, 57, 23, 18 및 8종 농약이 검출되었다. Azoxystrobin, bifenthrin 및 chlorpyrifos는 모든 국가의 모니터링에서 검출되었다. 코스타리카 및 에콰도르산 바나나에서 각각 14 및 12종 농약이 검출되었다. Imazalil 및 thiabendazole은 각각 16 및 11개 원산지에서 검출되었다. Myclobutanil 및 iprodione은 각각 4 및 2개국산에서 검출되었다. Azoxystrobin 및 bifenthrin은 코스타리카산 바나나에서 각각 11.8 및 9.8% 검출 건수를 보였고, azoxystrobin의 검출률은 콜롬비아산에서 19%였다. 벨리즈산, 콜롬비아산 및 코스타리카산 바나나 중 chlorpyrifos는 각각 22.7, 13.3 및 10.8%의 검출률을 보였고, 콜롬비아산 및 코스타리카산 바나나 중 myclobutanil의 검출률은 각각 17.9 및 10.4%였다.

• 대한두경부종양학회지
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• 제16권1호
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• pp.58-63
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• 2000

Objectives: To demonstrate effective diagnostic method and proper management of recurrent thyroid cancer through to compare treatment and surveillance of $I^{131}$ scanning detected recurrence and clinically detected recurrence. Material and Methods: We retrospectively analyzed clinical information about 46 patients who has recurrent thyroid cancer of 298 patients who have been primarily operated due to thyroid cancer in PMC at the over 10 years between 1986 and 1995. We examine incidence of recurrence due to pathologic types, site of recurrence, disease free interval, detection method of recurrence, and also treatment and progression of recurrence. A patients in which the clinical examination was entirely negative and the $I^{131}$ scan demonstrated either a new area of $I^{131}$ uptake or an increased area of concentration, compared to the previous scan, was designated as a recurrence detected by $I^{131}$ scan only. Recurrences that were obviously by physical examination or chest x-ray, etc were considered clinically detected recurrence, regardless of the the results of the thyroid scan. Results: Mean of disease tree interval(DFI) is 36months. When mean DFI of $I^{131}$ scan detected recurrence is 28months, whereas mean DFI of clinically detected recurrence is 47months. In statiscal analysis, p-value is 0.043 as significantly. In progression of recurrent patient, NED is 28case, AWD is Sease, DOD is 13case. Among the 13case, scan detected recurrence is lease of 20 patients(5%), whereas clinically detected recurrence is l2case of 26 patient(46%). In statiscal analysis, p-value is 0.003 as significantly. Conclusion: Early detection of the recurrent thyroid cancer by $I^{131}$ scanning leads to good progress compare with detection by clinical examination. NED: No Evidence of Disease AWD : Alive With Disease DOD : Dead Of Disease DOC: Dead of Other Cause

• 한국환경보건학회지
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• 제28권3호
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• pp.39-48
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• 2002

Cooling towers water has frequently been known as a source of infection in outbreaks of Legionnaires' disease and a source of indoor air pollution. However, there have been a few reports on the presence of Legionella in cooling towers water and aerosols of various public facilities. This study was carried out to investigate the indoor and outdoor dis-tribution of Legionella spp and microbe from 132 cooling towers water of public facilities detected 1. pneumophila in Seoul and Gyeonggi-Do areas. The results showed that the Lpneumophila among the selected 132 cooling towers was detected mostly in July (12.0%), followed by August (4.0%) and June, September no-detected. The 1. pneumophiia in public facilities was detected mostly in department store (27.3%), followed by hospital (8.7%), office building (5.9%), big market (5.0%) and hotel, subway no-detected. The pH values of cooling towers water with presence of 1. pneumophila showed mostly 8.0 or higher (9.5%), followed by 7.0～8.0 (6.8%), lower 7.0 no-detected. The tem-perature of cooling towers water with presence of L pnemophila showed mostly 30℃ or higher (9.8%), followed by 26～30℃ (6.9%), lower 25℃ no-detected. The turbidity of cooling towers water with presence of 1. pneumaphila showed mostly 1-2 M (8.8%), followed by above 2 NTU (5.9%), lower 1 NTU no-detected. The correlation coef-ficient between indoor and outdoor concentration of microbes in public facilities showed 0.67 in Legionella spy. (p>0.05), 0.93 in bacteria (p<0.01), 0.94 in fungus (p<0.01), 0.98 in coilform (p<0.01), respectively.

• 한국작물학회지
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• 제47권1호
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• pp.42-47
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• 2002

The major free sugars of buckwheat plants were fructose, glucose, and maltose but their contents and compositions were influenced by the different wavelength of light. Free sugar contents of Clfa 39 (Fagopyrum tataricum) were higher than those of Yangjul-maemil (Fagopyrum esculentum) regardless of the light sources. As treated with red and blue light, the free sugar contents in the leaves of buckwheat plants were slightly increased, but their contents in the stems and flowers were lower than those of natural light condition. Under the natural light condition, maltose was detected in every tissues of buckwheat plants, but as treated with blue and red light, it was not detected in the flowers of buckwheat plants. Citric, malic and acetic acid were detected as major organic acids in buckwheat plants. Red and blue lights decreased the total organic acid contents in buckwheat plants as compared with natural light condition. It was considered that blue light are less active than red light for the accumulation of organic acids. Tataric acid was detected only in the leaves of buckwheat plants, however, as treated with red and blue light, it was not detected in the leaves of Clfa 39. Flowers of Yangjul-maemil contained a considerable amount of rutin and quercitrin. Only small amount of quercitrin was detected in leaves, but it was not detected in stems. On the other hand, Clfa 39 leaves contained a considerable amount of rutin, quercetin and small amount of quercitrin, but quercitrin and quercetin were detected only in the stems of Clfa 39. Red and blue lights significantly decreased the contents of rutin, quercitrin, and quercetin in buckwheat plants as comparing with natural light condition. Rutin content in the flowers of Clfa 39 was increased under the red and blue light conditions.

• 한국수산과학회지
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• 제52권2호
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• pp.114-120
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• 2019

In the case of being contaminated with pathogenic Vibrio, shellfish pose a serious threat for public health. This study was conducted to investigate the presence of Vibrio parahaemolyticus and V. vulnificus in the seawater, bottom deposit and shellfish samples collected from the Gomso Bay, west coast of Korea. V. parahaemolyticus (30-80 CFU/g) was detected from seawater Jul. to Oct. and highest at Sep. V. parahaemolyticus was detected less than 10 CFU/g from seawater at Nov. with $14.6^{\circ}C$ of seawater temperature. V. parahaemolyticus (180-1,850 CFU/g) was detected more than 100 CFU/g from 3 kinds of shellfish, Short-necked clam Ruditapes philippinarum, Corb shell Cyclina sinensis, and Surf clam Mactra veneriformis, Jul. to Oct. and was highest in Surf clam at Oct. V. parahaemolyticus was detected less than 20 CFU/g from all tested shellfish at Nov. V. vulnificus (1.8-2.7 MPN/100 mL) was detected from seawater Jul. to Oct. and was not detected at Nov. V. vulnificus (18-236.7 MPN/100 g) was also detected from 3 kinds of shellfish Jul. to Oct. and was highest in Corb shell at Jul. V. vulnificus was not detected from all tested shellfish at Nov.

• Fisheries and Aquatic Sciences
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• 제22권2호
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• pp.5.1-5.9
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• 2019

Background: Live fish import may lead to the unintended introduction of pathogens. We examined the monthly distribution of microbial pathogens in ornamental finfish imported into South Korea over a 6-month period. Results: Vibrio alginolyticus was detected in one lemon damsel in June and July; V. vulnificus was detected in one lemon damsel, one caerulean damsel, and one pearl-spot chromis and one ocellaris clownfish in July, April, and May, respectively; Photobacterium damselae was detected in one ocellaris clownfish and one caerulean damsel in June and July, respectively; V. anguillarum was detected in one pearl-spot chromis in February; V. harveyi was detected in one ocellaris clownfish and two mandarin fish in February and April, respectively; Yersinia ruckeri was detected in a pearlscale goldfish group in June and July and in two colored carp groups in July; and Lactococcus garvieae was detected in a lemon damsel group and a sutchi catfish group in July and May, respectively. European catfish virus, the only viral pathogen detected, was found in two sutchi catfish groups in May. Conclusion: This study is the first to identify pathogenic species and the presence or absence of pathogens (non-quarantine diseases) in imported ornamental finfish. These results demonstrate that various pathogens with the potential to harm indigenous fish populations can accompany ornamental finfish imported into South Korea.