Hill S Series
Mostrando 1-9 de 9 artigos, teses e dissertações.
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1. A mata ripária influencia a composição e estrutura da comunidade zooplanctônica de poças temporárias?
RESUMO Poças temporárias são importantes ampliadores da biodiversidade local, sobretudo em áreas florestadas estacionais. Alterações na cobertura vegetal ao longo das margens desses corpos hídricos podem alterar a composição e estrutura da sua comunidade zooplanctônica. Nesse sentindo, testamos a hipótese de que a presença de mata ripária altera
Iheringia, Sér. Zool.. Publicado em: 11/11/2019
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2. VALUE AT RISK A COMPARISON OF METHODS TO CHOOSE THE SAMPLE FRACTION IN TAIL INDEX ESTIMATION OF GENERALIZED EXTREME VALUE DISTRIBUTION / VALOR EM RISCO UMA COMPARAÇÃO ENTRE MÉTODOS DE ESCOLHA DA FRAÇÃO AMOSTRAL NA ESTIMAÇÃO DO ÍNDICE DE CAUDA DE DISTRIBUIÇÕES GEV
Value at Risk -VaR- is already part of the toolkit of financial analysts assessing market risk. In order to implement VaR it is needed to estimate low quantiles of the portfolio returns distribution. Traditional methodologies combine a normal conditional distribution together with ARCH type models to accomplish this goal. Albeit well succeed in evaluating ri
Publicado em: 2002
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3. The maximum speed of shortening in living and skinned frog muscle fibres.
This study was performed to determine whether Viso (the maximum speed of shortening extrapolated from force-velocity curves) equalled Vu (the unloaded speed of shortening determined by the slack test) in both living fibres from Rana temporaria and mechanically skinned fibres from Rana pipiens. In living fibres (R. temporaria) we obtained improved estimates o
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4. Effect of Dark Repair on Ultraviolet Sensitivity of Bacteriophage-Infected Bacteria
Feiner, R. R. (Columbia University, New York, N.Y.), and R. F. Hill. Effect of dark repair on ultraviolet sensitivity of bacteriophage-infected bacteria. J. Bacteriol. 91:1239–1247. 1966.—Changes in ultraviolet (UV) sensitivity of phage-host complexes during phage development have been studied for the following systems: T1 and Escherichia coli B, T1 and
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5. RNA-RNA recombination in Sindbis virus: roles of the 3' conserved motif, poly(A) tail, and nonviral sequences of template RNAs in polymerase recognition and template switching.
Sindbis virus (SIN), a mosquito-transmitted animal RNA virus, carries a 11.7-kb positive-sense RNA genome which is capped and polyadenylated. We recently reported that the SIN RNA-dependent RNA polymerase (RdRp) could initiate negative-strand RNA synthesis from a 0.3-kb 3'-coterminal SIN RNA fragment and undergo template switching in vivo (M. Hajjou, K. R. H
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6. Regions of Yersinia pestis V antigen that contribute to protection against plague identified by passive and active immunization.
V antigen of Yersinia pestis is a multifunctional protein that has been implicated as a protective antigen, a virulence factor, and a regulatory protein. A series of V-antigen truncates expressed as glutathione S-transferase (GST) fusion proteins (GST-V truncates) have been cloned and purified to support immunogenicity and functionality studies of V antigen.
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7. The magnitude, time course and spatial distribution of current induced in salamander rods by cyclic guanine nucleotides.
1. Cyclic GMP was introduced into isolated salamander rods through a tight-seal electrode attached to the inner segment while the outer segment was held in a suction electrode; nucleotide-induced membrane current was recorded by both electrodes. After 3-15s of nucleotide exposure the cells were stimulated with intense, brief flashes, which suppressed 90-95%
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8. The inhibition of rabbit skeletal muscle contraction by hydrogen ions and phosphate.
1. The effects of phosphate and protons on the mechanics and energetics of muscle contraction have been investigated using glycerinated rabbit psoas muscle. 2. Fibres were fully activated by addition of Ca2+ (pCa 4-5) at 10 degrees C. The velocities of contraction were measured in isotonic load clamps, and the velocities of unloaded fibres were measured by a
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9. Opsonophagocytosis-Inhibiting Mac Protein of Group A Streptococcus: Identification and Characteristics of Two Genetic Complexes
Recently, it was reported that a streptococcal Mac protein (designated Mac5005) made by serotype M1 group A Streptococcus (GAS) is a homologue of human CD11b that inhibits opsonophagocytosis and killing of GAS by human polymorphonuclear leukocytes (PMNs) (B. Lei, F. R. DeLeo, N. P. Hoe, M. R. Graham, S. M. Mackie, R. L. Cole, M. Liu, H. R. Hill, D. E. Low, M
American Society for Microbiology.