Zobrazeno 1 - 10
of 35
pro vyhledávání: '"D. B. Hoover"'
Publikováno v:
Brazilian Journal of Geophysics. 13
Autor:
Joachim Karfunkel, Frederico Sousa Guimarães, A. I. C. Persiano, Ariete Righi, Maurício V. B. Pinheiro, D. B. Hoover, Roberto M. Paniago, Klaus Krambrock
Publikováno v:
Physics and Chemistry of Minerals. 40:555-562
Fine gem-quality, purplish-red garnets from the Tocantins State, Brazil, were investigated for their crystal chemistry and optical properties by several spectroscopic techniques, including electron microprobe analysis, Mossbauer, Raman spectroscopy a
Publikováno v:
The Journal of Gemmology. 31:91-103
Using a new, non-destructive method of gem testing, magnetic susceptibility, the authors show how the major end- member composition of any garnet may be confi dently predicted by plotting RI against measured susceptibility. On this diagram, eight end
Autor:
D. B. Hoover, C. Williams
Publikováno v:
The Journal of Gemmology. 30:287-296
Publikováno v:
Journal of South American Earth Sciences. 14:277-289
Diamond-bearing deposits from the Espinhaco Range are associated with three distinct periods in the geologic record. During a Precambrian magmatic period (≥1.75 Ga), diamondiferous rocks were introduced into the crust; the location of these rocks r
Autor:
D. B. Hoover
Publikováno v:
The Journal of Gemmology. 30:103-105
Publikováno v:
The Journal of pharmacology and experimental therapeutics. 294(1)
Selective tachykinin agonists were used to identify cardiac and coronary responses mediated by specific tachykinin receptor subtypes in isolated, perfused guinea pig hearts. Receptor desensitization with selective agonists and blockade with selective
Autor:
Y, Zhang, D B, Hoover
Publikováno v:
The Journal of pharmacology and experimental therapeutics. 293(1)
Signaling mechanisms for muscarinic receptor-mediated vasoconstriction in coronary resistance arteries were studied in potassium-arrested isolated rat hearts perfused at a constant flow rate. The cholinergic agonist bethanechol was given by bolus inj
Autor:
D B, Hoover, D A, Neely
Publikováno v:
The Journal of pharmacology and experimental therapeutics. 282(3)
The primary goal of this study was to determine the extent that selective muscarinic receptor antagonists could discriminate between the chronotropic and coronary vasoconstrictor responses to acetylcholine in isolated rat hearts perfused at constant
Autor:
Y, Chen, D B, Hoover
Publikováno v:
The Journal of pharmacology and experimental therapeutics. 267(3)
The pharmacological effects of substance P (SP), neurokinin A (NKA), an amino terminal fragment of SP and related tachykinin receptor agonists on renal resistance vessels were assessed in isolated rat kidney perfused at constant rate (3 ml min-1 g-1