Logarithms
Mostrando 13-24 de 47 artigos, teses e dissertações.
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13. Classification of hypergeometric identities for π and other logarithms of algebraic numbers
This paper provides transcendental and algebraic framework for the classification of identities expressing π and other logarithms of algebraic numbers as rapidly convergent generalized hypergeometric series in rational parameters. Algebraic and arithmetic relations between values of p+1Fp hypergeometric functions and their values are analyzed. The existing
The National Academy of Sciences.
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14. HAMARTIEXÉRESIS AS APPLIED TO TABLES INVOLVING LOGARITHMS
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15. HAMARTIEXÉRESIS AS APPLIED TO TABLES INVOLVING LOGARITHMS
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16. Interrelationship of Heat and Relative Humidity in the Destruction of Clostridium botulinum Type E Spores on Whitefish Chubs
Heat destruction of types B and E Clostridium botulinum spores on whitefish chubs was observed to be dependent upon the relative humidity (RH) in the chamber in which fish were heated. Experimental conditions were designed to simulate those attainable in commercial fish-smoking plants. Low numbers of type E spores were destroyed with regularity, within 30 mi
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17. Reduction of oral flora with rifampin in healthy volunteers.
The effect of a short course of rifampin on the oral microflora was evaluated in 17 healthy volunteers. Salivary specimens were collected before and after two 600-mg doses of rifampin administered 6 h apart. Salivary bacteria were identified to species, and total quantitative colony counts were determined for each isolate. For all 17 subjects, treatment with
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18. Pseudo-Poles in the Theory of Emden's Equation
It is known that Emden's equation y″ = x1-mym has movable singularities where the solution becomes infinite for one-sided approach. If m = (p + 2)/p, p positive integer, the singularities look like poles of order p. In this note expansions in terms of powers and logarithms are obtained from which the nonpolar nature of these “pseudo-poles” becomes evid
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19. Correlations between holo-transcobalamin II, holo-haptocorrin, and total B12 in serum samples from healthy subjects and patients.
AIMS--To study the correlations between total vitamin B12(B12), holo-haptocorrin, and holo-transcobalamin II (holo-TCII) concentrations in human sera; the association between reduced holo-TCII concentrations and macrocytosis attributable to B12 deficiency. METHODS--Serum samples from 38 healthy volunteers, 113 patients with normal total serum B12 concentrati
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20. Convexity properties of products of random nonnegative matrices
Consider a sequence of N × N random nonnegative matrices in which each element depends on a vector u of parameters. The nth partial product is the random matrix formed by multiplying, from right to left, the first n of these random matrices in order. Under certain conditions, the elements of the nth partial product grow asymptotically exponentially as n inc
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21. Atypical regions in large genomic DNA sequences.
Large genomic DNA sequences contain regions with distinctive patterns of sequence organization. We describe a method using logarithms of probabilities based on seventh-order Markov chains to rapidly identify genomic sequences that do not resemble models of genome organization built from compilations of octanucleotide usage. Data bases have been constructed f
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22. Renin Release during Acute Reduction of Arterial Pressure in Normotensive Subjects and Patients with Renovascular Hypertension*
In normotensive subjects, acute reduction of mean arterial pressure to from 60 to 75 mm Hg by infusion of sodium nitroprusside caused significant increase in renin activity of renal venous plasma and also in the renal-systemic difference of renin activity. At the same time, the products of the renal-systemic difference of renin activity and renal plasma flow
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23. Photophobe (Ppb), a Drosophila mutant with a reversed sign of phototaxis; the mutation shows an allele-specific interaction with sevenless.
We have isolated a dominant behavioral mutation, Photophobe (Ppb), on the second chromosome of Drosophila melanogaster. Although wild-type flies are attracted towards green light, flies homozygous for the Ppb mutation avoid it over an intensity range of six logarithms. Ppb interacts in a dominant way with mutations in the sevenless (sev) gene, an X-chromosom
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24. DIFFERENCES IN LEVELS OF XANTHINE DEHYDROGENASE ACTIVITY BETWEEN INBRED AND OUTBRED STRAINS OF Drosophila melanogaster*
Levels of activity of xanthine dehydrogenase in homogenates of individual flies were measured by fluorometry for three inbred strains and two large, randomly breeding, laboratory populations of Drosophila melanogaster. The patterns of activity during the first five days following eclosion differed significantly between the inbred strains and the randomly bre