Zobrazeno 1 - 10
of 10
pro vyhledávání: '"R. B. Siegel"'
Publikováno v:
The Auk. 116:842-847
The lives of most temperate-latitude birds are organized on an annual cycle that includes reproduction, molt, dispersal and/or migration, and winter maintenance. How food and energy requirements vary with stage of the annual cycle, and which stage (i
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::30592c255cda8a8d80c4747d12a4e2e7
https://doi.org/10.2307/4089348
https://doi.org/10.2307/4089348
Publikováno v:
International Journal of Mass Spectrometry. 188:147-153
A combination of electron scattering and laser-induced fluorescence (LIF) techniques has been employed in the direct experimental determination of the N 2 + ( X 2 Σ g + ) ionization cross section as a function of electron energy from threshold to 20
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::5d95ab2b5d8a7a447b6c5449995ae00c
https://doi.org/10.1016/s1387-3806(99)00018-4
https://doi.org/10.1016/s1387-3806(99)00018-4
Publikováno v:
Journal of Physics B: Atomic, Molecular and Optical Physics. 32:L247-L254
A combination of electron scattering and laser-induced fluorescence (LIF) techniques has been employed in an absolute experimental determination of the N2+ (X 2g+) ionization cross section as a function of electron energy from threshold to 200 eV. N2
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::969c189c7cbe4ed887264d5e2127bea6
https://doi.org/10.1088/0953-4075/32/10/102
https://doi.org/10.1088/0953-4075/32/10/102
Publikováno v:
Journal of Applied Physics. 73:7203-7206
The optical emission spectrum in the spectral region 200–800 nm produced by electron impact on tetra‐ethoxysilane (TEOS) under controlled single‐collision conditions is analyzed. Absolute emission cross sections (at an impact energy of 100 eV)
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::7fea39c9d4da1884f310f107f50e2062
https://doi.org/10.1063/1.352393
https://doi.org/10.1063/1.352393
Publikováno v:
The Journal of Chemical Physics. 94:341-350
We studied the emission of the fluorine (2p43s) 2,4P→(2p5) 2P resonance lines in the vacuum ultraviolet (VUV) at 95.5 and 97.5 nm, respectively, following dissociative excitation of SF6, CF4, NF3, and CCl2F2 by controlled electron impact under sing
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::deed429be6c1e5ef18480dc2caa7660c
https://doi.org/10.1063/1.460348
https://doi.org/10.1063/1.460348
Publikováno v:
Physical Review A. 41:5594-5599
We report absolute photoemission cross sections and appearance potentials for the most intense ultraviolet emissions produced by electron-impact dissociation of boron trichloride, ${\mathrm{BCl}}_{3}$. The emission features studied include two atomic
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::956e0a83bf9abc98c18e772abd5e84d3
https://doi.org/10.1103/physreva.41.5594
https://doi.org/10.1103/physreva.41.5594
Autor:
J. Kop, R. Brosius, Linda J. Magrum, Robin R. Gutell, Carl R. Woese, Ramesh Gupta, David A. Stahl, Harry F. Noller, James J. Hogan, R. B. Siegel, N. Crawford
Publikováno v:
Nucleic Acids Research. 8:2275-2294
We have derived a secondary structure model for 16S ribosomal RNA on the basis of comparative sequence analysis, chemical modification studies and nuclease susceptibility data. Nucleotide sequences of the E. coli and B. brevis 16S rRNA chains, and of
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::aa3c717981e9a853fa2736ac2f83a652
https://doi.org/10.1093/nar/8.10.2275
https://doi.org/10.1093/nar/8.10.2275
Autor:
Harry F. Noller, R. B. Siegel, J. Kop, Carl R. Woese, Ramesh Gupta, Linda J. Magrum, A M Kopylov
Publikováno v:
Journal of Biological Chemistry. 259:15287-15293
A majority (approximately 89%) of the nucleotide sequence of Bacillus brevis 16 S rRNA has been determined by a combination of RNA sequencing methods. Several experimental approaches have been used to probe its structure, including (a) partial RNase
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::b51d552b87fc107e88a8cf76575cae0f
https://doi.org/10.1016/s0021-9258(17)42547-6
https://doi.org/10.1016/s0021-9258(17)42547-6
Publikováno v:
Theriogenology. 13(5)
The effects of selenium (Se) on motility of bovine spermatozoa were evaluated in two experiments. In Experiment 1, increasing doses of Se alone or with vitamin E were found to increase motility in Se concentrations up to 1 mug/ml. However, Se alone h
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=pmid________::9dc1a6dffdbe382e87edac388942ce15
https://pubmed.ncbi.nlm.nih.gov/16725505
https://pubmed.ncbi.nlm.nih.gov/16725505
Autor:
R B, Siegel, W C, Summers
Publikováno v:
Journal of molecular biology. 49(1)
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=pmid________::7e66755427628dd540526060bd90ab59
https://pubmed.ncbi.nlm.nih.gov/4915857
https://pubmed.ncbi.nlm.nih.gov/4915857