Certainty Effect
Mostrando 13-24 de 24 artigos, teses e dissertações.
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13. The impact of the certainty context on the process of choice
In this study we examine how the introduction of a reference lottery with nonrandom outcomes alters the way in which choices among pairs of lotteries are made, even if it does not alter the choices. We use different domains (some of the lotteries produce gains, other losses) and different contexts (one member of the pair, the reference lottery, may be either
National Academy of Sciences.
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14. Recognizing and reporting adverse drug reactions.
Although physicians in practice are most likely to see patients with adverse drug reactions, they may fail to recognize an adverse effect or to attribute it to a drug effect and, when recognized, they may fail to report serious reactions to the US Food and Drug Administration (FDA). To recognize and attribute an adverse event to a drug effect, physicians sho
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15. Job related mortality risks of Hanford workers and their relation to cancer effects of measured doses of external radiation.
This paper continues the series by Mancuso, Stewart, and Kneale (MSK) on studies of cancer risks for radiation workers at Hanford. It concentrates on the statistical problems posed by the need to estimate and control for job related mortality risks when there are several changes of occupation and no certainty about how different occupations are related to tw
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16. The Isolation of Polygenic Factors Controlling Bristle Score in Drosophila Melanogaster. II. Distribution of Third Chromosome Bristle Effects within Chromosome Sections
In the present study an attempt has been made to characterize the genetic ``factors'' controlling quantitative characters, bristle numbers, in Drosophila melanogaster. A low sternopleural bristle multiple recessive marker third chromosome was used to analyze a high sternopleural third chromosome, in a high sternopleural bristle background. An attempt was mad
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17. Calcium block of Na+ channels and its effect on closing rate
Calcium ion transiently blocks Na+ channels, and it shortens the time course for closing of their activation gates. We examined the relation between block and closing kinetics by using the Na+ channels natively expressed in GH3 cells, a clonal line of rat pituitary cells. To simplify analysis, inactivation of the Na+ channels was destroyed by including
The National Academy of Sciences.
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18. Identification by computer sequence analysis of transcriptional regulator proteins in Dictyostelium discoideum and Serratia marcescens.
We have performed computer searches in the database of known protein sequences for proteins similar in sequence to bacteriophage regulatory proteins of known 3-D structure. The searches are more selective than other methods due to the use of a length-dependent threshold in sequence similarity, above which structural homology is implied with high certainty. T
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19. Rheumatoid arthritis: effects of a new agent (ICI 55 897) on serum acute phase proteins and the erythrocyte sedimentation rate.
Thirty-four patients with rheumatoid arthritis (RA) were treated with a new agent (ICI 55 897) in addition to basic therapy with nonsteroid anti-inflammatory drugs. Five patients had the drug for less than 28 days; the remaining 29 were observed for periods up to a year. At 140 days, when all but 2 patients were in the study, there had been statistically sig
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20. Exposure to nickel compounds and smoking in relation to incidence of lung and nasal cancer among nickel refinery workers.
OBJECTIVES: To investigate the relation between occupational hazards among nickel refinery workers and their exposure to different forms of nickel over time and the interaction between smoking and total exposure to nickel. METHODS: The cohort consisted of 379 workers with first employment 1916-40 and at least three years of employment and 4385 workers with a
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21. Can Ca2+ Fluxes to the Root Xylem Be Sustained by Ca2+-ATPases in Exodermal and Endodermal Plasma Membranes?1
The pathway of Ca2+ movement from the soil solution into the root stele has been a subject of controversy. If transport through the endodermis is assumed to be through the cytoplasm, the limiting factor is believed to be the active pumping of Ca2+ from the cytoplasm into the stele apoplast through the plasma membrane lying on the stele side of the Casparian
American Society of Plant Biologists.
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22. Live Borrelia burgdorferi preferentially activate interleukin-1 beta gene expression and protein synthesis over the interleukin-1 receptor antagonist.
Lyme arthritis is one of the few forms of chronic arthritis in which the cause is known with certainty. Because cytokines are thought to contribute to the pathogenesis of chronic arthritis, we investigated the effect of the Lyme disease spirochete, Borrelia burgdorferi, on the gene expression and synthesis of IL-1 beta and the IL-1 receptor antagonist (IL-1r
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23. Circulating DNA in systemic lupus erythematosus. Isolation and characterization.
Immunoprecipitable double-stranded (dsDNA) was previously shown to persist in the circulation of a clinically recognizable subgroup of patients with systemic lupus erythematosus (SLE). Plasma from 10 such patients was subjected to a DNA isolation procedure that used a combination of proteolysis, phenol extraction, and hydroxylapatite adsorption and elution i
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24. Asbestosis: a study of dose-response relationships in an asbestos textile factory
ABSTRACT A group of 379 men who had worked at an asbestos textile factory for at least 10 years has been followed up. The prevalence of crepitations, 'possible asbestosis', certified asbestosis, small opacities in the chest radiograph and values of lung function have been related to dust levels. The type of asbestos processed was predominantly chrysotile alt