• Journal of the Korea Organic Resources Recycling Association
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• v.5 no.2
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• pp.1-6
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• 1997

Three plants for slaughtering cattle and hogs are located within 13 km away from Ithe downtown of Seoul. They are Woosung at Majang-dong, Hyubjin at Doksan-dong and Chookhyup at Garak-dong. The Objectives of this research are 1) to investigate the current status of three plants 2) to investigate wastewatrer characteristics for slaughtering platns, 3) to find out the pollution loadings to the Han river. The conclusions drawn from this research are given below: (1) The ratio of BOD/COD from the wastewater for three plants is 0.8~0.9. Most components of watewater can be biodegradable. (2) The pollution unit of BOD/cattle hog was the 726 g for Chookhyup, 777 g for Woosung and 797 g for Hyupjin plant. The average pollution unit of wastewater was 767 g BOD/cattle hog for slaughtering plant and $112.6g/m^2{\cdot}d$ for meat markets wastewater. (3) The total pollution loading was 5,050 kg/day for three wastewater plants and this amount can be affected as much as 1 % of total pollution loading of the Han River.

• Korean journal of applied entomology
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• v.31 no.1
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• pp.45-49
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• 1992

Studies were conducted to control Spodoptera exigua in Allium fistulosum field using synthetic sex pheromone trap. Heavily, medium and lightly damagd fields at early transplanting time showed no differences in control effects after 8 weeks of establishment of pheromone traps in Allium fistulosum fields. Number of damaged leaves in each treated field was 0.2-3 individuals per 60 hills comparing with 33.2 individuals at non-treated field. Also, the numbers uf male adults attracted to pheromone traps were 1.8-5.0 individuals at the big inning of installation but increased to 25.8, 49.9, 74.9, and 77.4 individuals after 2, 4, 6, and 8 weeks, respectively. There was a negative correlation between amount of male adults attracted to pheromone traps and number of damaged leaves (r=-0.9572*). Number of adults attracted to various colored light trap for 30 days were 6 in red, 11 in white and none in blue comparing with 1,041 individuals in pheromone trap.

• Research in Plant Disease
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• v.20 no.2
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• pp.107-111
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• 2014

A greenhouse experiment was conducted to examine the effect of initial population density (Pi) of Helicotylenchus dihystera on six commercial tomato cultivars. Two-week-old tomato seedlings of six commercial cultivars were transplanted in d-10-cm clay pot and was inoculated with to give 0, 0.02, 0.2, and 2 nematodes/g soil. Plants were grown in a greenhouse for 60 days. Root and plant weights were unaffected but plant height declined only at inoculum level of 2 nematodes/g soil. At the highest initial population density (2 nematodes/g soil), plant height of tomato cv. Poseidon was reduced by 24%. Tomato cv. Hoyong produced the most nematodes with 7.0 nematodes/g soil and the least was tomato cv. Miniheuksu with 2.2 nematodes/g soil.

• Journal of Fisheries and Marine Sciences Education
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• v.24 no.5
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• pp.662-669
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• 2012

Bycatch and stranding of sea turtles from Jeju coastal water of Korea were monitered from 2008 to 2009. A total of 41 sea turtles, consisting of 12 greens (Chelonia mydas), 3 loggerheads (Caretta caretta), 1 hawksbill (Eretmochelys imbricata) and 25 unidentified species, were recorded and observed in those area. Reported stranding and bycatch reached to a peak in August. The largest number of bycatch occurred in the coastal waters around Aewol-eup located in northwest area of Jeju Island. Most of the bycatch were taken by set nets and gill nets, which prevailed over the fishing grounds in the coastal waters of the Jeju Island. It is suggested that an appropriate monitoring system be necessary to conserve endangered sea turtle species in Jeju of Korea.

• KOREAN JOURNAL OF CROP SCIENCE
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• v.39 no.4
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• pp.339-347
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• 1994

This experiment was conducted to investigate duck-raising system and the optimum nitrogen fertilization level in duck-raising field. Optimum duck rasing density in rice paddy field was 1, 000~1, 500 heads per ha and ducks could be harvested three times in a year starting from 40 days after mature-seedling machine transplanting. When 1, 000~1, 500 heads per ha of ducks was raised once a year, optimum nitrogen application level was 110kg/ha. In the case of three times in a year, it was 8.8kg/ha. The weed control rate of the duck-raised paddy field was superior(93~96%) to control (89%, treated twice with herbicide).

• Parasites, Hosts and Diseases
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• v.24 no.2
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• pp.194-200
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• 1986

A study on the population density of crayfish intermediate hosts and infestation status of crayfish with encysted larvae of Paragonimus westermani in Ulchin county, Kyungpook Province, Korea was conducted from May to October in 1986. The population density of the crayfish ranged from 1 to 13, with an average of 4 per man-hour. Among the six habitats, Ducheon had a somewhat higher density than that of the others. Of eight hundred and seventeen crayfish examined, 127 or 15.5 per cent harboured the metacercarial larvae of Paragonimus westermani. The majority of the larvae were found in three parts of the body: most frequently in the cephalothorax, next in the gills, and then in the liver. The average number of metacercarial larvae per infected crayfish ranged from 1.0 to 1.9, with an average of 1.7. Summarizing the results, this study indicates that the population density of crayfish intermediate host and infestation rates for the crayfish with encysted larvae of Paragonimus westermani in Ulchin county of Kyungpook Province is relatively high.

• Parasites, Hosts and Diseases
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• v.26 no.3
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• pp.189-198
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• 1988

The fresh water snail, Hippeutis (Helicorbis) cantori, caught from the rice paddies in Namyangju-gun, Gyeonggi.do, was found to be a new second inter- mediate host of 5. cinetorchis in Korea. The metacercariae were found from 89 (76.7%) out of 116 snails examined and the average metacercarial burden was 4.7 per infected snail. Some developmental characteristics of 5. cinetorchis were observed after experimental infection of the metacercariae to rats and mice.

• Korean journal of applied entomology
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• v.41 no.4
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• pp.239-245
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• 2002

It was investigated whether or not such helpers as worker bee, bee-cocoon and egg-cup etc, have any effects on oviposition and colony foundation of the bumblebee queen, Bombus ignitus. Among the helpers tested, the callow workers of B. ignitus and B. terrestris showed the most remarkable effects on the oviposition rates to 92% and 88%, respectively. The live cocoon as a helper improved oviposition rate over 60%. A narcotized old worker 10-20 days-aged after emergence, showed similar effects to a callow worker on the colony development such as oviposition rate, colony foundation and progeny-queen production. On the other hand, dried cocoon, callow honeybee worker or egg-cup did not show a positive effect as a helper. In the number of workers recruited to a foundation queen, two workers showed better effect than one worker on the colony development, with no difference between two and more.

• Journal of Veterinary Clinics
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• v.26 no.6
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• pp.632-636
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• 2009

Three dogs presented to the Veterinary Medical Teaching Hospital of the University of Konkuk and Hangang Animal Hospital with a history of perineal swelling. No tenesmus, stranguria, or any clinical signs other than the swelling was observed by the owners in three dogs. On physical examination, the swelling was observed unilaterally in two dogs and bilaterally in a dog. Digital palpation to the swelling confirmed reducible perineal herniation in two dogs and irreducible perineal herniation in a dog. Plain radiographs revealed that no pelvic or abdominal contents other than the fat were displaced into subcutaneous perineal region in three dogs. Internal obturator transposition herniorrhaphy was performed for correction of perineal herniation in three dogs. Contralateral herniation involving fat was noted after surgery in a dog. The follow-up information was based on physical examination by veterinarians or telephone interview with owners. The owners reported that there was no evidence of complications related to surgery such as sciatic nerve injury, rectal prolapse, wound dehiscence, or perineal hernia recurrence in all dogs.

• Proceedings of the Korea Contents Association Conference
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• 2012.05a
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• pp.407-408
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• 2012

요약은 이 연구는 다양한 식이 섭취와 일회 지구성 운동으로 야기되는 근육(백색 비복근) 내 AMP-activated protein kinase(AMPK), Extracellular signal-regulated kinase(ERK 1/2)와 p38 mitogen-activated protein kinase(MAPK)의 신호전달체계를 구명해 보고자 실시되었다. 실험에 사용된 쥐(Sprague-Dawley)는 총 160마리로 크게 일반 탄수화물 식이(CHO; 40마리), 포화지방 식이(SAFA; 40마리), 단일불포화 식이(MUFA; 40마리)와 다불포화 식이(PUFA; 40마리)로 나누어 연구를 진행하였다. 운동 프로그램은 일회 지구성 운동으로 30분 운동 후 5분 휴식의 사이클을 지속적으로 6번 반복하여 총 3시간의 지구성 수영 운동을 실시하였고, 분석을 위한 조직 샘플링은 운동 전, 운동 후 0시간, 1시간, 4시간, 24시간에 걸쳐서 이루어졌다. 연구의 결과는 서로 다른 식이 섭취와 운동에 따른 AMPK의 신호전달 단백질의 발현은 유의한 치이가 나타나지 않았다. 그러나 서로 다른 식이를 섭취한 쥐의 근육에서 ERK 1/2(p<.01)와 p38 MAPK(p<.001)의 신호전달 단백질의 발현은 유의한 차이를 보였다(p<.05). 흥미로운 결과는 운동에 대한 유의한 차이는 AMPK, ERK1/2와 p38 MAPK 모두 유의한 차이를 보이지 않았다는 것이다. 결론적으로 일회 지구성 운동보다 서로 다른 식이의 섭취가 근육 내(백색 비복근)의 대사적 변화를 일으키는데 주도적인 영향을 미칠 수 있음을 시사할 수 있다.