Repositorio Académico de la Universidad de Chile: Recent submissions
Now showing items 42121-42140 of 98403
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(John Wiley and Sons Ltd, 1977)The limitations of nonmedicated intrauterine devices (IUDs) and the potential for improving IUD performance through the addition of pharmacologic agents are discussed. The mechanisms of action of IUDs, particularly of the ...
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(1977)The cAMP levels of single Xenopus laevis oocytes are shown to range from 1 to 4 μM and those of isolated nuclei to be about 7 to 10 μM. The oocyte is capable of hydrolyzing a large molar excess of microinjected cAMP, rapidly ...
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(1977)Dermatoglyphic data on 15 traits (digital arches, digital radial loops, digital ulnar loops, digital whorls, I loops, Ir loops, H loops, Ĥ loops, III loops, IV loops, mainline C absence, total ridge count, a‐b ridge count, ...
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(1977)The safety and efficacy of the repeated transcervical instillation of quinacrine hydrochloride in a suspension of 5 ml of 2% Xylocaine was evaluated in 200 patients. All instillation procedures were performed during the ...
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(1977)In 40 unanaesthetized, curarized cats, the reciprocal electrophysiological relationship between the caudate nucleus and the Pul-LP complex was analyzed. With pulses I/sec applied to the pulvinar nucleus, evoked responses ...
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(1976)Two points concerning enzymatic systems acting on disposal of morphine are discussed, namely the multiplicity of glucuronyltransferase and the effect of nalorphine on N-demethylation of morphine. Evidences of the presence ...
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(1977)Early studies with copper suggested that few improvements in overall IUD performance could be obtained with the use of more than 200 mm2 of copper. Thus, the use of other metals paired with copper has been investigated. ...
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(2009)
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(1977)The use of dermatoglyphic traits to describe interpopulational diversity among human populations at various levels of differentiation is compared with similar analysis of gene frequency data by means of nonparametric methods ...
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(1977)Xenopus laevis oocytes were injected with [14C] phe-tRNA and the fate of the aminoacyl moiety was studied. The radioactive phenylalanine is gradually hydrolized off the tRNA once inside the cell. The rate of deacylation ...
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(1977)The effect of harmaline (HME) was analyzed in rat strips superfused in vitro. A dual inotropic action was found: the positive component was due to a transient catechol-mediated enhancement of the velocity of development ...
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(1977)The mechanism of the transient enhancement of the amplitude of the action potential (AAP) induced by harmaline (HME) was studied in rat atria. The results show that HME increases AAP through an enhancement of the slow ...
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(1976)Normal human blood received in 0.02 M sodium oxalate (1 part to 9 parts of blood) in 16 × 100 mm glass tubes, at 37 °C, always clotted. Blood from severe Factor X deficiency received in 0.02 M sodium oxalate did not clot. ...
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(1977)Transmembrane potentials of pacemaker fibers of the sinus node were recorded to analyze the effect of harmaline (HME) on cardiac automaticity. A short exposure to HME 2.1 × 10-5 or 8.3 × 10-5 M produced a long lasting ...
