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      • 알코올의 섭취가 흰쥐의 혈액과 간의 지질대사에 미치는 영향

        이명숙,김영연,김효숙,김매하,전진순,서진숙,송선미,양영재,윤원손,이미라,이효영,정승현 誠信女子大學校 生活文化硏究所 2004 生活文化硏究 Vol.18 No.-

        To investigate the effects of ethanol on the lipid metabolism in blood and liver, twenty one male Sprague Dawley rats had orally taken the 25% alcohol and 50% alcohol by 5g per Kg of weight during 3 weeks after the adjusting period. For the energy balance, 85% sucrose and 45% sucrose was added in control group and 25% alcohol group each. The weight was reduced by alcohol treatment according to the levels, otherwise the weight of liver and heart was little increased in alcohol groups rather than in control without significance. Moreover, RBC, WBC, hemoglobin and hematocrit were increased by alcohol treatment according to the levels without significance. Otherwise, adjusted bilirubin levels by 100g of weight was significantly increased by alcohol treatment dose dependently. Alcohol induced RBC degradation and increased circulated bilirubin because of liver damage. For blood lipid profiles, blood cholesterol was increased in 50% of alcohol group compared to that of 25% and control groups, otherwise, blood triglycerides (TG) was increased by 30% in 25% alcohol groups rather than in control but not significantly different. The hepatic lipid composition, cholesterol levels in alcohol treatment groups was lower than those in control. The hepatic TG was not influenced by alcohol treatment. The two reasons of decreasing hepatic lipids were suggested by 85% sucrose of control for energy balance more synthesized cholesterol and TG than those in 25 or 50% alcohol groups, and by cholesterol and TG could not be synthesized because of liver damage from alcohol.

      • 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.

      • 因果개념의 哲學的 分析

        金曉明 漢陽大學校 人文科學大學 1987 人文論叢 Vol.14 No.-

        The phrases of the form "A cause B" are mostly often used both in everyday life and in sciences, and people seem to be as much consistent in using those phrases as in using other words like "It is red", "It is a desk", etc. However, in the former case, it is not quite clear by what common element those phrases about causation are consistently and systematically used. In practical life, we are sometimes puzzled about whether we have really found out the cause of something, or whether what we thought was the cause of something is really th cause in question. In this case, we are naturally led to ask just what it is for something to cause something else. It must be in this context that a philosophical consideration or analysis of causation is called in. Philosophers have in general not been satisfied with the attitude to treat the word 'cause' as an unanalyzable, primitive term; thus, they have tried to analyze the concept of causation, and to find out the real meaning of the term. One of the major approaches to the analysis of causation is the attempt to search for words or phrases which have roughly the same meaning as 'cause'. For example, one might suggest that A causes B if and only if A produces B, on the basis of the view that the word 'cause' is synonymous with the word 'produce'. This line of approach, however, has never succeeded in explaining the exact meaning of causation. This is because, as D.Hume once observed it, "the terms of efficacy agency, power, force, energy, necessity, connection, and productive quality, are all nearly synonymous." Therefore, Hume continued to claim, "it is an absurdity to employ any of them in defining the rest." (A Treatise of Human Nature, p.157) As is well known, Hume's theory of causation played an epoch making role in the history of philosophical discourse on the topic of causation. There are still, whether in direct or indirect way, many adherents of Hume's theory of causation. In his discussion of causation, Hume classified four prima facie conditions for causation: that is, spatial contiguity, temporal succession, constant conjunction, and necessary connection. Each of these four conditions has become a focal point of subsequent talk about causation. In particular, much discussion have been devoted to the conditions of constant conjunction and necessary connection. What kind of relation is constant conjunction? What does 'constant' mean? If the condition of constant conjunction entails, and is entailed by, "....is always followed by... ,as some Humeans claim, then what is the exact meaning of the last phrase? And what is necessary connection? Is it, as Hume claimed, a kind of mental determination, or, as modal realists claim, something that really exists in nature? If necessity is nothing but a product of mental habit, how causation can be differentiated from mere chance? To those questions various answers can be given, and depending upon what kind of answers are given, theories Are differentiated from each other. We are here concerned about only three theories: The Regularity Theory, The Necessary and Sufficient Condition Approach, and Physicalistic Reductionist Theory. These three theories are especially dominant in contemporary discussion of causation. A critical examination of those three theories is the aim of this paper.

      • 고도 근시 환자에게 시행한 Keratomileusis-in-situ의 임상 성적

        김효명 고려대학교 의과대학 1994 고려대 의대 잡지 Vol.31 No.2

        Keratomileusis-in-situ was performed on 18 eyes(15 patients) to correct high myopia. Average preoperative spherical equivalent was -19.26D with a range of -13.25 to -30.50D. The mean postoperative myopia was -4.80D(-0.00 to -9.00D), checked a t 6 month postoperatively. Preoperative corneal power was +41.11D, while it decreased to +35.41D at postoperative 6 months. Of all the cases, there was no significant complication except the one who had irregular astigmatism caused by the epithelial ingrowth in the interface. Uncorrected vision of all the patients improved markedly, compared to those preoperatively. In conclusion, Keratomileusis-in-situ is a feasible technique for correcting high degree of myopia, though the calculation program might be improved to obtain adequate prediction.

      • KCI등재후보

        상악 전치부에 발생한 낭종성 치아종의 치험례

        김효언,윤규호,전인성,신재명,한광홍,배정호 大韓顎顔面成形再建外科學會 2003 Maxillofacial Plastic Reconstructive Surgery Vol.25 No.1

        Odontomas are odontogenic harmatomas which are composed of hard dental tissue. This lesion is composed of more than one type of tissue and, for this reason, has been called a composite odontoma. Odontogenic cysts are derived from epithelium associated with the development of the dental apparatus. Dentigerous cyst originated after the crown has been completely formed by accumulation of fluid between the reduced enamel epithelium and the crown. It also associated with crown of impacted tooth. Cystic odontomas are closely similar to dentigerous cysts clinically and radiologically. Treatment of choice is total removal(enucleation) or decompression(marsupialization). We represent two cases of Cystic odontomas with literature review in 69-year old male and 55-year old female occured in anterior maxilla. The leisions were successfully treated by marsupializaion.

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