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  1. No Access

    Article

    A direct progesterone radioimmunoassay

    Exposé d'une méthode de radioimmunoassai du progestérone dans le plasma sans purification chromatographique. Le 11-hémisuccinate de la progestérone a été joint au sérum bovin de l'albumine et injecté aux lapin...

    A. Castro, Maria Kutas, A. Chung, Dagmar Bartos in Experientia (1973)

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    Article

    Phenobarbital specific antisera and radioimmunoassay

    On a développé un anticorps d'une grande affinité et spécifité envers le phénobarbital en inoculant des lapins avec une solution de barbiturateprotéide, synthétisée d'acide barbiturique de 5-phényl-5-(4-aminob...

    A. Chung, S. Y. Kim, L. T. Cheng, A. Castro Ph. D. in Experientia (1973)

  3. No Access

    Article

    Mutagenecity in the mal regions ofEscherichia coli

    L'efficacité de la nitrosoguanidine (MNG) dans différents milieux de culture et tampons a été étudiée. Les résultats obtenus montrent qu'avec le temps, la fraction de cellules survivant au traitement diminue p...

    M. P. Singh, Y. S. Chung, J. Greenberg in Experientia (1973)

  4. No Access

    Article

    A direct plasma testosterone radioimmunoassay

    On a développé und méthode simple pour déteminer sans chromatographie en colonne le testostérone du plasma. La purification a été faite par préextraction avec l'hexane. Un antisérum contre le testostérone a ét...

    Prof. A. Castro, H. Shih, A. Chung in Experientia (1973)

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    Article

    A radioimmunoassay for deoxycorticosterone in human peripheral plasma using sephadex LH-20 chromatography

    Se reporta un nuevo método para medir desoxicorticosterona en plasma, usando cromatografía de columna LH-20 y radioinmunoensayo. Las cantidades de plasma necesarios para dicho ensayo son mínimas (2 ml) compara...

    Prof. A. Castro PhD, A. Chung, B. Jelen, M. Kutas in Experientia (1973)

  6. No Access

    Article

    Plastid differentiation on 6-azauracil media

    Les mutants au locusm de l'Arabidopsis ne réussissent pas à former de chloroplastes normaux dans certaines conditions et montrent des activités plus hautes en synthèse de pyrimidines que le témoin. La nutrition a...

    S. C. Chung, G. P. Rédei, J. A. White in Experientia (1974)

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    Article

    Intestinal polyps in American negroes and Nigerian africans

    Forty Africans from Nigeria and 89 American negroes with colorectal polyps were analysed by age, sex and type of polyp. The Nigerians were much the younger group (mostly under 20 years of age, whereas most of ...

    A O Williams, E B Chung, A Agbata, M A Jackson in British Journal of Cancer (1975)

  8. No Access

    Article

    Effect of cholesterol on membrane Na,K-dependent adenosine triphosphatase activity

    By feeding rats on a high-cholesterol diet or by treating rat brain membranes with cholesterol oxidase, preparations of membrane Na,K-ATPase differing in their cholesterol content were obtained. The cholestero...

    A. A. Boldyrev, K'uo Chê-chung in Bulletin of Experimental Biology and Medicine (1977)

  9. No Access

    Article

    Damage by ozone to the mechanical integrity of the protoplast plasmalemma

    Ozone acts on the plasmalemma as to weaken its mechanical properties. This results in the bursting of protoplasts.

    M. Cailloux, C. T. Phan, Y. S. Chung in Experientia (1978)

  10. No Access

    Article

    Further characterization of the effects of ultraviolet irradiation of the amphibian egg

    UV-irradiation of the vegetal hemisphere of amphibian eggs leads to developmental abnormalities in neural morphogenesis. The possibility that the egg's transient sensitivity to irradiation could be due to pigm...

    G. M. Malacinski, H. -M. Chung, B. Youn in Experientia (1978)

  11. No Access

    Article

    Induction of deoxyribonucleic acid degradation inEscherichia coli by ozone

    Cell survival and deoxyribonucleic acid (DNA) degradation were measured for wild-typeEscherichia coli B251 cells after exposure to different concentrations of ozone. The results show that extensive breakdown of D...

    C. Hamelin, F. Sarhan, Y. S. Chung in Experientia (1978)

  12. No Access

    Article

    A simple interspike interval analyzer for study of neuronal spike trains

    A simple, low cost interspike interval analyzer for the analysis of trains of nerve impulses is described. The analyzer is built with readily available integrated circuits and has been used to analyze spike tr...

    S. H. Chung, J. C. Hwang, Y. S. Chan, Y. M. Cheung, K. B. Fung in Experientia (1979)

  13. Article

    Fatal basilar artery occlusion following cervical spine injury

    A patient rendered acutely quadriplegic in an automobile accident was shown by angiography to have occlusion of the left vertebral artery. One month later, he abruptly became unconscious, apneic and died. Auto...

    Robert M Woolsey, Hyung D Chung in Spinal Cord (1979)

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    Article

    A simple impregnation technique for thin and semithin enterochromaffin cells in sections

    Constant, intense and precise impregnation of enterochromaffin (EC) cells was achieved simply by floating thin or semithin sections of gut mucosa, fixed in osmium tetroxide or in glutaraldehyde with postfixati...

    G. Pradal, Y. T. Chung, P. Barrière, G. Lefranc in Histochemistry (1980)

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    Article

    Application of the thiocarbohydrazide method for vicinal glycol group detection to the study of gastric mucosa endocrine cells

    The thiocarbohydrazide-silver proteinate (TCH-SP) method was applied to the study of cat, rabbit and mouse gastric mucosa endocrine cells. After 24-h treatment with thiocarbohydrazide (TCH), glycogen was seen ...

    G. Lefranc, Y. T. Chung, P. Barrière, G. Pradal in Histochemistry (1980)

  16. No Access

    Article

    Host cell reactivation of ozone-treated T3 bacteriophage by different strains ofEscherichia coli

    Host cell reactivation capacity for ozone T3 phage was determined for differentE. coli strains deficient in one or more of the DNA repair mechanisms. The results indicate that DNA polymerase I appears to play a k...

    P. L'Hérault, Y. S. Chung in Experientia (1982)

  17. No Access

    Article

    Host cell reactivation capacity of different strains ofE. coli B resistant or sensitive to ozone

    Host cell reactivation capacity for ozonated or irradiated phage was determined for different strains ofE. coli either more sensitive or resistant to ozone than the wild type strain. The results suggest that theo...

    P. L'Hérault, Y. S. Chung in Experientia (1984)

  18. No Access

    Article

    Structural and functional studies on C4b-binding protein, a regulatory component of the human complement system

    The binding and cofactor activities of C4b-binding protein were examined before and after limited proteolysis by pepsin, trypsin and chymotrypsin. The major fragments generated were characterized by amino acid...

    L. ** Chung, Kenneth B. M. Reid in Bioscience Reports (1985)

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    Article

    Effects of training on human tracking of electrocutaneous signals

    The effects of training on a person's ability to perceive, interpret and utilize information presented via the tactile sense were examined by using a dual-channel electrocutaneous tracking approach. The electr...

    Dr. Andrew Y. J. Szeto, Yee-Ming Chung in Annals of Biomedical Engineering (1986)

  20. No Access

    Article

    Nucleotide Sequence and Deduced Primary Structure of Cellobiohydrolase II from Trichoderma Reesei

    The nucleotide sequence and the deduced primary structure of cellobiohydrolase II from Trichoderma reesei QM9414 have been determined. A palindromic region preceding this gene has a sequence common to the complem...

    Chung Mong Chen, Mikelina Gritzali, Darrel W. Stafford in Bio/Technology (1987)

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