Reappearance
Mostrando 13-24 de 189 artigos, teses e dissertações.
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13. REAPPEARANCE OF THE GHOST OF MALTHUS
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14. The reappearance of malaria in the USA.
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15. The Influence of Dark Adaptation Temperature on the Reappearance of Variable Fluorescence following Illumination 1
The effect of chilling temperatures (5°C) on chlorophyll fluorescence transients was used to study chilling-induced inhibition of photosynthesis in plant species with differing chilling sensitivities. A Brancker SF-20 fluorometer was used to measure induced fluorescence transients from both attached and detached leaves of chilling-sensitive cucumber (Cucumi
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16. REAPPEARANCE OF CERTAIN STRUCTURAL FEATURES OF NATIVE COLLAGEN AFTER THERMAL TRANSFORMATION*
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17. Functions of F Pili in Mating-Pair Formation and Male Bacteriophage Infection Studied by Blending Spectra and Reappearance Kinetics
The extent of removal at various blending speeds (blending spectrum) and the kinetics of reappearance after blending of the ability of male Escherichia coli bacteria to form mating pairs, to adsorb and be infected by ribonucleic acid male phage, and to adsorb and be infected by deoxyribonucleic male phage were identical to the blending spectrum and reappeara
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18. Spontaneous recanalisation of side branches occluded during percutaneous transluminal coronary angioplasty.
Percutaneous transluminal coronary angioplasty was performed in a 56 year old man with postinfarction angina. During an otherwise uncomplicated dilatation of a left anterior descending artery with a 70% stenosis two diagonal branches, each measuring 1.5 mm in diameter, were occluded. The occlusions were not associated with any adverse clinical effects, thoug
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19. Disappearance and unexpected reappearance of progesterone in the circulation of the monkey: novel hormone kinetics.
1. Intravenous injection of [3H]progesterone in non-pregnant monkeys resulted in total disappearance of the labelled hormone from the circulation within 3 h. However, 0.5-1.75 h after disappearance the hormone reappeared, reaching 20% (median, 5%) of the initial maximal concentration. 2. Reappearance of labelled hormone was accompanied by similar fluctuation
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20. Potentiation of Tumor Necrosis Factor-Induced NF-κB Activation by Deacetylase Inhibitors Is Associated with a Delayed Cytoplasmic Reappearance of IκBα
American Society for Microbiology.
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21. Inactivation of 1,6-Diphosphatase by Glucose in Yeast
Fructose-1,6-diphosphatase was derepressed in Saccharomyces cerevisiae by incubation in media containing non-sugar carbon sources. Addition of glucose to a derepressed culture led to a rapid loss of the measurable activity of the enzyme. Fructose and mannose also produced inactivation, but 2-deoxyglucose was ineffective. Experiments with cycloheximide indica
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22. Potentiation of Tumor Necrosis Factor-Induced NF-κB Activation by Deacetylase Inhibitors Is Associated with a Delayed Cytoplasmic Reappearance of IκBα
Previous studies have implicated acetylases and deacetylases in regulating the transcriptional activity of NF-κB. Here, we show that inhibitors of deacetylases such as trichostatin A (TSA) and sodium butyrate (NaBut) potentiated TNF-induced expression of several natural NF-κB-driven promoters. This transcriptional synergism observed between TNF and TSA (or
American Society for Microbiology.
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23. Optimal Thermal Environments for Plant Metabolic Processes (Cucumis sativus L.) (Light-Harvesting Chlorophyll a/b Pigment-Protein Complex of Photosystem II and Seedling Establishment in Cucumber).
Analysis of the temperatures providing maximal photosystem II fluorescence reappearance following illumination and thermal kinetic windows (TKWs), obtained from the temperature characteristics of enzyme apparent Km values, have been proposed as indicators of the bounds of thermal stress in plants. In this study, we have evaluated the temperature optimum for
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24. Mechanical Removal of F Pili, Type I Pili, and Flagella from Hfr and RTF Donor Cells and the Kinetics of Their Reappearance
The effect of mechanical agitation (blending) on the removal of F pili, type I pili, and flagella from Hfr (high-frequency recombinant) and resistance transfer factor (RTF) fi+Escherichia coli cells was studied by electron microscopy. The reduction in number and length of appendages was measured as a function of blendor speed under standard conditions of tem