절수에 의한 Mongolian Gerbil 장기중량변화에 관한 분석연구

김무강,이기훈,이강이,송치원,이경열,권효정,박미선,정승혁,이행연,김명철 충남대학교 수의과대학 동물의과학연구소 2000 動物醫科學硏究誌 Vol.8 No.-

In this study, authors measured the each organ weight of the long term water deprived Mongolian gerbil, after then we calculated the mean, standard deviation, variance coefficient of the real measured organ weight and induced the organ weight change quantity, rate of quantity, deviation between measured and theological organ weight, deviation rate, sum of deviation rate, organ weight change rate, rate of organ weight by the mathematical formula. The results obtained as follow 1. The weight of the brains, lung, and testis were abruptly decreased after water deprived until the 5th day, after then slowly decreased until the 20th day. 2. The weight of the heart was decreased gradually from the first day until the 20th day. 3. The weight of the liver was abruptly decreased until the 10th day, after then the more slowly decreased until the 20th day. 4. The weight of the thymus, spleen, kidney, and pancreas were abruptly decreased until the 15th day, after then increased slowly until 20th day but the weight of the kidney was abruptly increased from the 10th day. 5. The organ weight change rate and the rate of the each day organ weight were very diversified.

위암과 식도암이 병발된 다발성 원발성 악성종양 1예

박사영,이나영,이효진,이선영,최진혁,이순남,심강섭,성순희,한운섭 梨花女子大學校 醫科大學 醫科學硏究所 1996 EMJ (Ewha medical journal) Vol.19 No.3

Multiple primary cancer means that more that two cancers occur independently in an individual. Recently, the incidence of multiple primary cancer has increased with lengthened survival, of cancer patients, development of new diagnostic technique and increased clinical evaluation. We report a patient who had adenocarcinoma of stomach combined with squamous cell carcinoma of esophagus simultaneously.

원형느타리버섯 백색돌연변체의 특성

이강효 외 한국버섯학회 2007 한국버섯학회지 Vol.5 No.1

원형느타리 재배농가에서 발생한 백색과 흑회색 변이체는 원형느타리1호에 비해 균사생장속도가 느리고 균총의 모양도 불규칙하였다. 색소변이체로부터 분리한 단포자의 유전표지인자를 분석한 결과 원형느타리1호의 단포자와 유사한 결과를 보여 색소변이체는 원형느타리1호의 변이체임이 확인되었다. 백색변이체균주를 Mn이 첨가된 배지에서 배양한 결과 배지색소가 형성되었다. 색소변이체로부터 단포자를 분리하여 F₁을 육성하여 자실체색의 후대유전양상을 분석한 결과, 백색변이체의 F₁은 모두 백색이었으며, 흑회색 변이체의 F₁은 대부분 모균주와 같은 흑회색의 자실색을 형성하는 것으로 보아 색소변이는 후대(F₁)로 유전되는 것으로 추정할 수 있다. 자실체색은 유색계통이 백색에 대해 우성인 것으로 보고되어 있으며, 백색변이체와 회색의 야생종과의 교배에 의해서도 동일한 결과를 얻을 수 있었다. 자실체색은 버섯의 상품성을 좌우하는 중요한 형질 중 하나이며, 또한 버섯균의 유기물 분해력과 병이나 불량환경에 대한 저항성에 관련된 것으로 알려져 있다. 따라서 자실체색이 진한 품종을 육성하는 연구는 버섯연구에 있어서 중요한 과제 중 하나이다. 자실체색 돌연변이체는 이러한 육종연구에 중요한 자료가 될 수 있을 것이다. The white-colored and the dark gray-colored mutants were frequently happened in cultivated areas of Pleurotus ostreatus (Wonhyeong-neutari). These caused conflicts between farmers and spawn companies. Our studies were conducted to elucidate the mechanism of mutagenesis. The results from the studies would provide valuable informations that could be used to prevent the color-related mutation, and also will be applied in breeding programs of P. ostreatus. Oyster mushroom variety, Wonhyeong-neutari, is somatic hybrid of Pleurotus and has genetic makers for arginine, ornithine, proline, riboflavine. Genetic markers analysis of monospore isolates derived from color mutants show identical tendency with that of Wonhyeong-neutari, these results indicate that color mutants were derived from Wonhyeongneutari. Twenty-one and four homokaryons were selected from the white-colored mutant MGL 2205 and gray-colored ASI 2029. All 34 F₁ hybrids derived from the white-colored mutant MGL 2205 produce white-color fruiting bodies, indicating that the white color trait is heritable. In the first generation hybrids between the white-colored MGL 2205 and the gray-colored ASI 2029, all 16 hybrids produced pigmented fruiting bodies. Homokaryons isolated from the hybrid MGL 2205 X ASI 2029 were mated with homokaryon tester strains derived from MGL 2205. By these result, we could assumed that white color trait is a heritable character which is controlled by more than one recessive gene.

영광원자력발전소 주변의 식생과 식물현존량 추정

이호준,양효식,전영문,정흥락,강재구,방제용 建國大學校基礎科學硏究所 1996 理學論集 Vol.21 No.-

영광원자력발전소 주변의 식생에 대한 식물사회학적 조사를 실시하였으며, 순 1차 생산량과 식물현존량을 추정하였다. 또한 상관에 의해 현존식생도 및 녹지자연도를 작성하였다(1:50,000). Z-M 방식에 의한 삼림식생은 소나무군락과 곰솔군락으로 구분되었다. 전체적으로 교목층에 소나무와 곰솔, 아교목층에 졸참나무와 곰솔, 관목층에 털진달래와 신갈나무, 초본층에 털대사초와 그늘사초 등의 피복지수가 우세하게 나타났다. 토양의 pH는 4.65∼4.67, 유기물 함량은 7.28∼7.53%의 범위였다. 현존식생도에 의한 분포비율은 경작지(67%), 소나무(21.9%) 및 곰솔군락(9.1%)의 순으로 나타났으며, 녹지자연도는 등급 2가 67%(경작지), 7등급(이차림(A))과 6등급(조림지)이 각각 29.2%와 1.8%로 나타났다. Montreal model에의한 소나무림과 곰솔림의 식물현존량은 657,817.2와 177,367.0ton으로 각각 산정되었다. The forest vegetation and estimation of phytomass and net primary production in the vicinity of Yonggwang Atomic Power Plant were analyzed on the basis of the phytosociological data. Depending on physiognomy, the actual vegetation map and the degree of green naturality(DGN) were also drawn in the scale of 1:50,000. According to Z-M method, the forest vegetation was classified into two communities; Pinus densiflora and Pinus thunbergii communities. It was generally shown that Pinus densiflora and Pirus thunbergii in tree-1 layer, Quercus serrata and Pinus thunbergii in tree-2 layer, Rhododendron mucronulatum var. ciliatum and Quercus serrata in shrub layer, and Carex ciliato-marginata and Carex lanceolata in herb layer had high coverage index. The pHs and contents of organic matter of the forest soils collected in each sites were in the 4.64 to 4.67 and 7.28% to 7.53% in average, respectively. The distribution area of each vegetationindex. The pHs and contents of organic matter of the forest soils collected in each sites were in the 4.64 to 4.67 and 7.28% to 7.53% in average, respectively. The distribution area of each vegetation type in the actual vegetation map was 67% cultivated land, 21.9% in Pinus densiflora community and 9.1% in pinus thunbergii community. The distribution of the degree of green naturality(DGN) was 67% in the second-grade (cultivated land), 29.2% in 7th grade (second forest(A)) and 1.8% in 6th grade (plantation). It was estimated that phytomass of Pinus densiflora and Pinus thunbergii in the study sites, which was calculated by Montreal model, was 657,817.2 and 177,367.0 ton, respectively.

생합성 플라스틱 Poly-β-Hydroxybutyrate의 생분해와 토양온도의 관계

이효혜미,조강현,조경숙 이화여자대학교 환경문제연구소 1988 이화환경연구 Vol.2 No.-

생분해성 플라스틱인 poly-β-hydroxybutyrate(PHB)의 미생물에 의한 분해에 대하여 2, 10, 20, 30 및 40℃의 항온이 유지되는 토양에서 49일간 배양하면서 조사하였다. 무게 감소로 측정한 poly-β-hydroxybutyrate의 분해속도는 배양 온도가 높을 수록 증가하였다. 배양온도 40℃에서 poly-β-hydroxybutyrate는 하루당 3.5%의 무게감소 속도로 빠르게 분해되었다. 한편 토양에서 poly-β-hydroxybutyrate의 분해는 토양의 pH, 전기전도도와 같은 화학적 특성에는 큰 영향을 미치지 않았다. 그러나 탈수소효소 활성도로 나타낸 토양미생물의 활성도는poly-β-hydroxybutyrate의 분해에 따라서 증가하였다. The microbial degradation of poly-β-hydroxybutyrate(PHB) films was studied in soil microcosms incubated at a constant temperature of 2, 10, 20, 30 and 40℃ for up to 49 days. The degradation rate measured through loss of weight was enhanced by incubation at a higher temperature. At the soil temperature 40℃, poly-β-hydroxybutyrate was rapidly degraded at a decay rate of 3.5% weight loss per day. The degradation of poly-β-hydroxybutyrate did not affected significantly the chemical properties of soils such as pH and electric conductivity. However, microbial activity of soil in terms of dehydrogenase activity was increased by the degradation of poly-β-hydroxybutyrate.

TGA를 이용한 산화구리계 탈황제의 반응 특성 규명

이혁수,강민필,이효송,이영우 충남대학교 공업교육연구소 2001 論文集 Vol.24 No.1

Reduction and sulfidation reactivities of mixed metal oxides were investigated by using a TGA. Mixed metal oxides consisted of CuO as the main active material, SiO₂ as the support material and both MoO₃ and Fe₂O₃ as the additives. Each material was chosen based on the literature survey. CS (CuO/SiO₂) sorbents were prepared to investigate the effect of support material, and consisted of various composition of CuO and SiO₂. CMS (CuO-MoO₃/SiO₂) and CFS (CuO-Fe₂O₃/SiO₂) sorbents were prepared to investigate the effect of additives and consisted of various composition of CuO and additive. In CMS and CFS sorbents, a support material was 25wt% SiO₂ because the previous study showed that 25wt% SiO₂ was needed to maintain the activity in multicycle experiment. Simple physical mixing method was chosen as the sorbent preparation method. Chatterjee-Conrad method was used to evaluate activation energies of sorbents from TGA data. The activation energy of CS sorbents decreased in reduction reaction and increased in sulfidation reaction as SiO₂ content increased. Fe₂O₃ was more favorable than MoO₃ as an additive material in terms of reduction reaction rate.

미술활동을 통한 ADHD 특성 아동의 문제행동 개선 연구

강은주,이효신 한국특수아동학회 2002 특수아동교육연구 Vol.4 No.2

본 연구는 ADHD 아동의 문제행동을 개선하기 위해 미술활동을 적용한 것이다. ADHD 아동들이 문제행동을 나타내는 것은 주의력결함이나 충동성, 즉 행동억제와 관련된 실행기능상의 문제로 파악되므로 미술활동을 통하여 자신의 행동에 대한 통제 훈련이 가능할 것이라는 점이 전제되었다. 대상아동은 DSM-Ⅳ의 진단기준과 주의력결핍과잉행동교사평정지의 선별기준을 만족시키는 3명의 아동으로 선정하였고, 미술활동 프로그램은 활동과정상 소근육운동의 활성과 억제가 요구되는 활동으로 구성하였다. 실험은 3명의 대상아동에 대하여 AB설계법으로 이루어졌으며 중재기간 후, 변화된 행동이 유지되는지도 알아보았다. 문제행동은 자리이탈과 주의산만행동으로 제한하고, 측정은 프로그램 중재 후 수업시간 20분을 비디오 촬영하여 연속기록법으로 행동발생의 빈도를 기록하였다. 연구결과, 3명의 대상아동 모두가 중재기간동안에 문제행동이 평균적으로 감소하였고, 중재를 중단한 유지기간동안에도 문제행동이 기초선수준으로 증가하지 않는 양상을 나타내었다. 따라서 미술활동은 ADHD 아동의 문제행동, 특히 자리이탈과 주의산만 행동을 감소시키는 데에 효과가 있다. The purpose of this study is to investigate the effects of various art activities on the leaving from seats and the distraction of an ADHD child. The subjects of the study was three ADHD children in W elementary school, showed problematical in 9 items regarding attention deficit of DSM-Ⅳ, over 6 items each regarding hyperactivity disorder and impulse and 9 items out of 14 items in an evaluation paper for attention deficit and hyperactivity disorder. The program was composed of art activities effective on improvement of attention power and decrease of hyperactivity disorder. The art activity program was divided into 4 steps; the beginning step(1-4 period), the expression step(5-12 period), the variation step(13-20 period), the completion step(21-23 period) of all 23 periods for 40 minutes a time, 4 times a week from 2002, 5, 27. to 2002, 7, 10. and it was applied by myself. The execution of the study was carried into foundation, arbitration, maintenance stages by AB design mode of single subject study method. Occurrence frequency of the disordered acts of the subjects was measured by continuative recording method. 20 minutes' school class in the foundation and maintenance stages, 40 minutes' program activities and 20 minutes' school class in the arbitration stage were recorded on a video and frequency degree of the act of separating from seats and the act of distraction by each period was written down by an observer. As a result of execution of the study, it showed that the program of various act activities was effective on decrease in the leaving from seats and the distraction of an ADHD children.

비소세포폐암에서 동시화학방사선요법을 받는 중 생긴 기관폐루1례

강건희,조성우,김성록,유영진,이효락 인제대학교 2008 仁濟醫學 Vol.29 No.-

최근 근치적 절제가 불가능한 국소진행성 비소세포 폐암에서 화학요법을 방사선요법과 동시에 투여하는 치료방법에 대한 연구가 활발이 이루어지고 있으며 이러한 치료과정 중 생긴 여러 부작용에 대한 연구도 이루어지고 있지만 아직까지 기관폐루가 생겼다고 보고는 없다. 따라서 치료과정 중 기관폐루가 의심되는 소견이 있을 경우 이에 대한 조기 진단과 치료를 통하여 부작용에 따른 사망률을 최소화하여야 하겠다. The incidence of lung cancer is increasing steadily and various methods have been attempted to enhance the cure rate of locally advanced non small cell lung cancer, which is hardly removable surgically, but the results are not satisfactory yet. Recently, research is being made actively on the simultaneous application of chemotherapy and radiotherapy for locally advanced non small cell lung cancer that cannot be radically resected and the we experienced a case of patient diagnosed with bronchopulmonary fistula during the treatment process, and therefore report it here.

교잡종 찰옥수수에 대한 연구 : Ⅱ. 새로 육성된 찰옥수수 교잡종 "대덕찰"에 대한 농업적 특성 Ⅱ. Agronomic Characteristics of the New Waxy Hybrids "Daedukchals"

이희봉,김효기,김동욱,김준표,정재영,최현구,강윤규 충남대학교 농업과학연구소 2002 농업과학연구 Vol.29 No.2

1. 새로 육성된 4개의 대덕찰 찰옥수수 교잡종에 대한 간장은 대조구인 찰옥 1호보다 큰 반면에 개화기는 약 4∼7일 늦었으며, 모든 공시 교잡종의 주당 분얼수는 한 개이하의 무효분얼로 나타났다. 2. 새로 육성된 대덕찰옥수수의 이삭길이와 직경은 대조구인 찰옥 1호보다 크게 나타났으며, 특히 대덕찰옥수수 1호와 2호의 과피두께는 대구조보다 얇았고, 당도 역시 높게 나타나 우수 교잡종으로 평가되었다. Stem height of the new developed "Daedekchals" waxy hybrids were higher than check hybrid. Chalok #1, while days to tasseling were delayed about four to seven days. Number of tillers per plant of the these new hybrids including check were appeared to be one less as non-effective tiller. Ear length and diameter of the new waxy hybrids were longer and thicker than check, respectively. In addition pericarp thickness of the Daedekchal #1 and #2 among new developed waxy hybrids were thinner and sugar content were higher than check.

남북한 농산물 교역활성화 방안에 관한 연구

이효선,강명구 단국대학교 2000 論文集 Vol.35 No.-

North Korea has shown the great reduction in the quantity of foreign trade since the collapse of the former USSER and the countries of Eastern Europe which was the major trade partners. The trade deficit of North Korea has gradually increased, which is acting as the man cause of its economic depression. North Korea devote all of its energy to the imort of grains and the introduction of crude oil for processing on consignment to overcome severe food shortage and energy shortage, deepening the degree of dependency on foreign countries further. The important fact is that South Korea has overtaken Russia and is emerging as the third trading partner next to China and Japan in terms of the quantity and size of trade. Especially, the size of trade exchange of agricultural products between South Korea and North Korea is drestically increasing. South Korea and North Korea have several favorable conditions that they can expand mutual interests by activating the trade of agricultural products it. South Korea and North Korea fail to get out of the deadlock in trade because of economic difficulty and political and diplomatic factors, but there is a high possibility that they may expand trades on mutually complementary items in the future.