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한국(韓國) 중부(中部) 지방(地方)의 토양(土壤)에 분포되는 Streptomyces의 분류(分類) (Classification and Identification of Streptomyces Isolated from Soil of Middle Part of Korea)

  • 윤봉식;신관철;최재을
    • 농업과학연구
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    • 제16권1호
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    • pp.44-55
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    • 1989
  • 우리나라 토양중의 Streptomyces를 분류, 동정하고자 토양으로부터 총 826 균주이 Streptomyces를 분리하여 1차 배양하고 형태적, 생리적 특성이 다른 65 균주를 선발하여 I.S.P 방법에 따라 총 46 종의 Streptomyces를 동정하였으며 그 중 국내미기록종은 38종으로서 마음과 같다. 1) melanin 색소형성균 S. lavendulae, S. tuirus, S. purpurascens, S. violarus, S. lateritius, S. olivochromogenes, S. purpeofuscus, S. fulvoviolaceus, S. gallilaeus, S. naganishii, S. hygroscopicus subsp. ossamyceticus, S. nevagawaensis, S. anandii, S. phaeopurpureus, S. mirabilis, S. arenae, S. massasporeus, S. eurythermus. 2) Melanin 색소 비형성군 S. fellus, S. flavidovirens, S. exfoliatus, S. fumanus, S. termitum, S. glomeroaurantiacus, S. luteofluorescens, S. prunicolor, S. fradiae, S. tauricus, S. griseolus, S. misakiensis, S. poonensis, S. antimycoticus, S. diastaticus subsp. ardesiacus, S. nigrifaciens, S. tendae, S. narbonensis subsp. josamvceticus, S. atroolivaceus, S. chrysomallus subsp. fumigatus.

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식용(食用)버섯류(類)의 아미노산(酸)에 관(關)한 연구(硏究) (A Study on the Amino Acid Contents of Edible Mushrooms)

  • 표명윤;노일협
    • Journal of Nutrition and Health
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    • 제8권1호
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    • pp.47-59
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    • 1975
  • Free amino acids in extracts and total amino acids in hydrolysates of eleven species of edible mushrooms were analyzed by amino acid autoanalyzer (Technicon PNC-1 Type). All these 11 species of mushroom can be repesented for convenience sake as follows. S-1; Agaricus campestris Fr. S-2: Agaricus campestris S-3; Pholiota nameko(I. Ito) S. Ito et Imai S-4; Auricularia auricula-judae(Fr.) $Qu{\acute{e}}l$ S-5; Tremella fuciformis Berk. S-6; Tricholoma matsutake(S. Ito et Imai) Sing. S-7; Pleurotus ostreatus Fr. $Qu{\acute{e}}l$ S-8; Lentinus edodes Berk Sing. S-9; Ramaria botrytis (Pers.) Ricken S-10; Coprinus comatus(Fr.) S.F, Gray S-11; Gyrophora esculenta The results obtained from this study are as follows. 1) 17 kinds of amino acid, including 7 kinds of essential amino acid in human nutrition except tryptophan were identified and quantified. 2) Of all free amino acids contained in mushrooms, glutamic acid is the richest, and then comes Ala, Thr, Pro and Lys in that order. There were no found Cys'and His in S-9;His in S-1; Met and Arg in S-11; Cys and Met in S-5;Pro, Cys, Met, Lys and Arg in S-4. Of all total amino acids which are closely related with nutritional valuation, glutamic acid is the richest, and then comes Asp, Ala, Arg, Leu, Thr, Gly in that order. Especially S-1 and S-2 contain high quantity $o{\acute{i}}$ proline in both free and total amino acids. 3) Cotents of ammonia in extracts of mushrooms in decreasing order in S-1, S-10, S-8, S-2, S-7, S-6, and S-2, S-6, S-8, S-9, S-1 in hydrolysates of mushrooms. 4) Gross Contents of free amino acid in extracts is high in decreasing order in S-10, S-1, S-7, S-6, S-8, and total amino acid in hydrolysates is high in S-10, S-2, S-2, S-8, S-1, S-9, S-6. 5) Besides 17 kinds of amino acid, 5 kinds of unknown amino acid are found in extracts and hydrolysates.

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아버지의 양육참여와 유아의 역할수용능력 및 친사회적 행동과의 관계 (Father's Child-Rearing Behaviors and Children's Role-Taking in Children's Prosocial Behavior)

  • 최경순
    • 대한가정학회지
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    • 제33권1호
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    • pp.125-140
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    • 1995
  • The purpose of this study was to answer the following questions. (1) Is there any relationship between father's child-rearing behavior and children's role-taking, between father's child-rearing behaviors and children's prosocial behavior?(2) Is there any relationship between children's role-taking and children's prosocial behavior? (3) Is there any differences in father's child-rearing behaviors, children's role-taking and children's prosocial behavior in relation to children's sex, SES, and mother's job? (4) what are the most important predictor variables which influence on children's role-taking? (5) What are the most important predictor variables which influence on children's prosocial behavior? The subjects of this study were 72boys and 70girls attending the nursery schools and their mothers in Busan. For the measurement of father's child-rearing behaviors, Choi's(1991) questionnare were used and for children's role-taking, children were interviewed with the Flavell's apple-dog stories. children's prosocial behavior was measured by amount of candies to share with classmates. The results were as follows: (1) There were significant correlation between father's child-rearing behaviors and children's role-taking, between father's was positively related to children's prosocial behavior. (2) Children's role-taking was positively related to children's prosocial behavior. (3) There were significant differences in father's child-rearing behaviors, children's role-taking and children's prosocial behavior according to children's sex, SES, and mother's job. (4) Father's child-rearing behaviors and SES were the most important predictor variables influencing on children's role-taking. (5) Children's sex, children's role-taking and father's childrearing behaviors were the most important predictor variables influencing on children's prosocial behavior. The findings stated above seemed father's child-rearing behaviors and children's role-taking, influenced on children's prosocial behavior.

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Streptomyces속의 분리 및 동정에 관한 연구 (Studies on the Isolation and Identification of Genus Strptomyces)

  • 이민재;하영칠;안정선
    • 미생물학회지
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    • 제14권1호
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    • pp.25-35
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    • 1976
  • A taxonomical sutdy was made on the Streptomyces species isolated from soils in this country, most of which were collected during the period from April, 1974 to July 1975. J.S.P. Methods (1966), I.S.P. Descriptions (1968-1972) and Bergy's Manual of Determinative Bacteriology (1974) were used for most of the experimental methods and identifications. As a result, 24 species were identified as follows ; S. albolongus, S galticri.S. Nashvillensis. S. showdoensis. S.norbonensis. S. flacocirens. S. resistomycificus. S> reshiriensis. S. chromofuscus. S. parvullus. S, chibaensis. S.canus. S. albulus. S. amlachiticus. S.griseoflavus. S. griscoincarnotus. .S. rubiginosus. S. bacillaris. S. setonill. S.intermedius. S. griseinus. S.subrutilus. S.reseosporus.

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MnO2, Fe2O3 첨가에 따른 0.05Pb(Al2/3W1/3)O3-0.95Pb(Zr0.52Ti0.48)O3계의 유전 및 압전 특성에 관한 연구 (The Study of the Dielectric and Piezoeletric Properties of 0.05Pb(AlS12/3TWS11/3T)OS13T-0.95Pb(ZrS10.52TTiS10.48T)OS13T System Modified with MnOS12T and FeS12TOS13T)

  • 윤석진;오현재;정형진
    • 대한전기학회논문지
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    • 제41권5호
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    • pp.508-516
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    • 1992
  • In this study, dielectric and piezoelectric properties of 0.05Pb(AlS12/3TWS11/3T)OS13T-0.95Pb(ZrS10.52TTiS10.48T)OS13T system ceramics were investigated with respect to the variations of MnOS12T and FeS12TOS13T additions amounts. The results obtained in this study are summarized as follows: 1. As the amounts of MnOS12T and FeS12TOS13T are increased, tetragonality(c/a) and apparent density were decreased but grain size was increased, also the limits of solubility were revealed because pores were formed at the amounts of 0.3wt% MnOS12T and 0.5wt% FeS12TOS13T. 2. AS the increasing of amounts of MnOS12T and FeS12TOS13T, the temperature of phase transition(TS1cT) was decreased, and pemeability had maximum value at the amount of 0.3wt% MnOS12T but were sharply decreasd for the increasing FeS12TOS13T amounts. 3. As the amounts of MnOS12T and FeS12TOS13T are increased, the electro-mechanical coupling factor(kS1pT) was decreased from 60% to 41%, 19% respectively, but mechanical quality factor(QS1mT) had maximum values 720 for amount of 0.3wt% MnOS12T and 320 the amount of 0.5wt% FeS12TOS13T.

어머니의 언어통제유형과 아동의 내외통제성, 사회적 능력과의 관계 (Mother's Verbal Control Modes, Children's Internal-External Control, and Children's Social Competency)

  • 정현희
    • 대한가정학회지
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    • 제35권5호
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    • pp.163-175
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    • 1997
  • This study investigated the relationship between mother's verbal control modes and children's social competency, the relationship between mother's verbal control modes and children's internal-external control, and the relationship between children's internal-external control and children's social competency. The subjects of this study were 157 boys and 144 girls attending elementary schools and their mothers in Busan. Lee's(1993) questionnaire on mother's verbal control modes, the modified version of Nowicki and Strickland's CN-SIE on internal-external control and Choi's(1992) questionnaire on social competence were used. The results were as follows: 1) The mothers control their children mostly by position-oriented mode. And mother's imperative mode for boys differed significantly from that for girls. Boys perceived mother's verbal control mode as more imperative. 2) There were significant negative correlations between mother's imperative mode and boy's social competency, between mother's imperative mode and boy's anxiety, and between mother's imperative mode and boy's internal-external control and boy's social competency, and between boy's internal-external control and boy's leadership. There were significant correlations between mother's position-oriented mode and girl's leadership, between mother's position-oriented mode and girl's, affection on parents, between mother's position-oriented mode and girl's internal-external control. There were significant negative correlations between girl's internal-external control and girl's anxiety. 3) Children's internal-external control was the predictor variable influencing on children' social competency, children's leadership. Children's sex was the predictor variable influencing on children' anxiety. And the mother's imperative mode and the mother's position-oriented mode were the predictor variables influencing on children' affection on parents.

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어머니의 언어통제유형과 아동의 또래관계 (Mother's Verbal Control Modes and Child's Peer-Relation)

  • 정현희;오미경
    • 대한가정학회지
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    • 제37권4호
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    • pp.85-95
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    • 1999
  • This study was to investigate the following research questions. (1) Is there any gender difference in the mother's verbal control and the child's peer relation\ulcorner (2) Is there any relationship between the mother's verbal control and the child's peer relation\ulcorner (3) Is the child's peer-relation influenced by the mother's verbal control\ulcorner The subjects of this study were 157 boys and 144 girls attending elementary schools in Susan. Lee, Kyung-Hee's questionnaires(1993) on mother's verbal control modes and Lee, Ju-Lie's questionnaires(1994) on child's peer relation were used. The results were as follows: 1) The mother's imperative mode for boys differed significantly from that for girls. Boys perceived mother's verbal control mode as more imperative. 2) There were significantly correlations between mother's position- oriented mode and boy's peer relation, between mother's person-oriented mode and boy's peer relation, and between mother's position-oriented mode and girl's peer relation. 3) The mother's position-oriented mode and the mother's person-oriented mode were the predictor variables influencing on child's peer relation.

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Streptococcus oralis의 인공치태 억제효과에 대한 연구 (THE EFFECT OF STREPTOCOCCUS ORALIS ON THE FORMATION OF ARTIFICIAL PLAQUE)

  • 김선미;양규호;정성수;오종석
    • 대한소아치과학회지
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    • 제26권1호
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    • pp.77-87
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    • 1999
  • 이 연구는 치아우식증의 주요 원인균인 Streptococcus mutans의 치태형성과 증식에 대한 Streptococcus oralis의 영향을 조사하고자 하였다. 이를 위해 S. mutans 단독 배양과 S. mutans와 S. oralis 혼합 배양후 형성된 치태 무게와 생균수를 측정 비교하였다. 또한 치태형성과 생균수에 영향을 미치는 요소들에 대해 조사하여 다음과 같은 결과를 얻었다. 1. S. mutans와 S. oralis의 혼합배양시 S. mutans 단독배양에 비해 치태무게와 생균수가 감소되었다. 2. S. mutans 단독배양에 10mM의 포도당을 첨가한 군은 첨가하지 않은 군보다 치태무게가 증가되었으나, S. mutans와 S. oralis의 혼합배양에 10mM의 포도당을 첨가한 군은 첨가하지 않은 군과 차이가 없었다. 3. S. mutans 단독배양에 10mM의 과당을 첨가한 군은 첨가하지 않은 군보다 치태무게가 증가되었고, S. mutans와 S. oralis의 혼합배양에 10mM의 과당을 첨가한 군도 첨가하지 않은 군보다 치태무게가 증가되었다. 4. S. mutans와 S. oralis의 혼합농도를 달리하여 배양했을때 S. oralis의 혼합농도가 높아질수록 치태무게와 생균수는 감소되었다. 5. 배양시간(6, 9, 12, 15시간)에 따른 치태무게와 생균수는 S. mutans 단독배양에 비해 S. mutans와 S. oralis 혼합배양시 배양 12시간 이후 급격히 감소되었다. 6. S. mutans와 S. oralis의 혼합배양에 $H_2O_2$를 소비하는 Staphylococcus epidermidis를 첨가한 군은 첨가하지 않은 군보다 치태무게와 생균수가 증가되었다. 이상의 결과로 S. oralis는 S. mutans와 혼합배양 시 S. mutans의 증식과 인공치태의 생성을 억제함을 알 수 있었고, 이는 S. oralis가 $H_2O_2$를 분비함으로써 얻어진 결과임이 시사되었다.

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퍼지 (r, s)-semi-preopen 집합과 퍼지 (r, s)-semi-precontinuous 함수 (Fuzzy (r, s)-semi-preopen sets and fuzzy (r, s)-semi-precontinuous maps)

  • 이석종;김진태
    • 한국지능시스템학회:학술대회논문집
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    • 한국퍼지및지능시스템학회 2007년도 춘계학술대회 학술발표 논문집 제17권 제1호
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    • pp.179-182
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    • 2007
  • In this paper, we introduce the concepts of fuzzy (r, s)-semi-preopen sets and fuzzy (r, s)-semi-precontinuous maps on intuitionistic fuzzy topological spaces in Sostak's sense. The relations among fuzzy (r, s)-semicontinuous, fuzzy (r, s)-precontinuous, and fuzzy (r, s)-semi-precontinuous maps are discussed. The concepts of fuzzy (r, s)-semi-preinterior, fuzzy (r, s)-semi-preclosure, fuzzy (r, s)-semi-preneighborhood, and fuzzy (r, s)-quasi-semi-preneighborhood are given. Using these concepts, the characterization for the fuzzy (r, s)-semi-precontinuous map is obtained. Also, we introduce the notions of fuzzy (r, s)-semi-preopen and fuzzy (r, s)-semi-preclosed maps on intuitionistic fuzzy topological spaces in Sostak's sense, and then we investigate some of their characteristic properties.

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Fuzzy(r,s)-irresolute maps

  • Lee, Seok-Jong;Kim, Jin-Tae
    • International Journal of Fuzzy Logic and Intelligent Systems
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    • 제7권1호
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    • pp.49-57
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    • 2007
  • Using the idea of degree of openness and degree of nonopenness, Coker and Demirci [5] defined intuitionistic fuzzy topological spaces in Sostak's sense as a generalization of smooth topological spaces and intuitionistic fuzzy topological spaces. M. N. Mukherjee and S. P. Sinha [10] introduced the concept of fuzzy irresolute maps on Chang's fuzzy topological spaces. In this paper, we introduce the concepts of fuzzy (r,s)-irresolute, fuzzy (r,s)-presemiopen, fuzzy almost (r,s)-open, and fuzzy weakly (r,s)-continuous maps on intuitionistic fuzzy topological spaces in Sostak's sense. Using the notions of fuzzy (r,s)-neighborhoods and fuzzy (r,s)-semineighborhoods of a given intuitionistic fuzzy points, characterizations of fuzzy (r,s)-irresolute maps are displayed. The relations among fuzzy (r,s)-irresolute maps, fuzzy (r,s)-continuous maps, fuzzy almost (r,s)-continuous maps, and fuzzy weakly (r,s)-cotinuous maps are discussed.