Results 181 to 190 of about 11,568 (231)
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Microwave dielectric properties of Ba3La2Ti2Nb2−Ta O15 ceramics
Materials Letters, 2007Abstract High dielectric constant and low loss ceramics in the system Ba 3 La 2 Ti 2 Nb 2− x Ta x O 15 ( x = 0–2) have been prepared by conventional solid-state ceramic route. Ba 3 La 2 Ti 2 Nb 2− x Ta x O 15 solid solutions adopted A 5 B 4 O 15 cation-deficient hexagonal perovskite structure for all compositions.
Liang Fang +3 more
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Low frequency vibrational modes in Ba2 NaNb5 O15
Ferroelectrics, 1970We have measured the Raman spectra of Ba2 NaNb5 O15 at temperatures from liquid nitrogen to 570°C. In the x(zzy scattering configuration a heavily damped mode was identified; and, its temperature dependence was sufficient to account for the dielectric anomaly found in this material. It is concluded that Ba2 NaNb5 O15 has a 'soft' A, vibrational mode as
L. C. Bobb +3 more
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Structures of the O-polysaccharides of Salmonella enterica O59 and Escherichia coli O15
Carbohydrate Research, 2011The O-polysaccharide of Salmonella enterica O59 was studied using sugar analysis and 2D (1)H and (13)C NMR spectroscopy, and the following structure of the tetrasaccharide repeating unit was established: →2)-β-d-Galp-(1→3)-α-d-GlcpNAc-(1→4)-α-l-Rhap-(1→3)-β-d-GlcpNAc-(1→ Accordingly, the O-antigen gene cluster of S.
Andrei V, Perepelov +7 more
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Escherichia coli Serotype O15:K52:H1 as a Uropathogenic Clone
Journal of Clinical Microbiology, 2000ABSTRACT To clarify the clinical and bacteriological correlates of urinary-tract infection (UTI) due to Escherichia coli O15:K52:H1, during a 1-year surveillance period we prospectively screened all 1,871 significant E. coli urine isolates at the Hospital de la Santa Creu i Sant Pau,
G, Prats +7 more
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Right frontotemporal activation by tonal memory in dyslexia, an O15 PET study
Biological Psychiatry, 1994A prior study documented the failure of dyslexic men to activate left temporoparietal cortex during phonologic processing. Because of reports of an anomalous right planum temporale in developmental dyslexia, the functional implications of which are unknown, this study examined the ability of dyslexics to activate right temporal cortex.
J M, Rumsey +8 more
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The Minor Planet Electronic Circulars contain information on unusual minor planets, routine data on comets and natural satellites, and occasional editorial announcements. They are published on behalf of Division F of the International Astronomical Union by the Minor Planet Center, Smithsonian Astrophysical Observatory, Cambridge, MA 02138, U.S.A.
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The Minor Planet Electronic Circulars contain information on unusual minor planets, routine data on comets and natural satellites, and occasional editorial announcements. They are published on behalf of Division F of the International Astronomical Union by the Minor Planet Center, Smithsonian Astrophysical Observatory, Cambridge, MA 02138, U.S.A.
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O15 Vax to the max: a race to stop pox
Oral Presentations, 2023Joseph Heskin +11 more
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O15 Ceramides mediate the resolution of psoriasis-like skin inflammation
British Journal of DermatologyAbstract Introduction and aims Psoriasis is a chronic inflammatory disease associated with keratinocyte hyperproliferation and immune cell accumulation in skin. However, much research has focused on the role of proteins in psoriasis and less on lipids, despite their prevalence in skin ...
Anna Hains +5 more
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