Results 261 to 270 of about 389,945 (292)
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Mobilities and interaction potentials for Rb+–Ar, Rb+–Kr, and Rb+–Xe
The Journal of Chemical Physics, 1978The mobilities of Rb+ ions in Kr and Xe gases have been measured at 300°K in a drift tube mass spectrometer over a wide range of the ionic energy parameter E/N (the ratio of the electric field intensity to the neutral gas number density). The Viehland–Mason kinetic theory of ionic mobility (valid for arbitrary E/N) is used to derive theoretical ...
I. R. Gatland +6 more
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Evidence for predissociation of Rb*2(C 1Πu) into Rb*(2P12) and Rb(2S12)
Chemical Physics, 1976Abstract A nozzle beam of rubidium is irradiated by the 4765 A line of the argon ion laser, and the resulting fluorescence is spectroscopically analyzed. Under these collision-free conditions, the emission consists of molecular fluorescence from the Rb2 C 1Π - X 1Σ+g electronic system as well as atomic fluorescence from the Rb 2P 3 2 fine ...
Diane L. Feldman, Richard N. Zare
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The Rb pathway in neurogenesis
Neuroreport, 2001Cell division during embryogenesis plays a crucial role in the formation of the nervous system. During this developmental process, proliferating neural precursor cells commit to a neuronal fate and, as a consequence, undergo terminal mitosis and adopt a neuronal phenotype.
K L, Ferguson, R S, Slack
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Low-velocity elastic scattering of Rb-Rb
Physical Review A, 1997With reference to recent progress in preparing slow and intense Rb beams ({ital rubidium atomic funnel} and {ital low-velocity intense source of atoms from a magneto-optical trap}) we have calculated total and differential elastic scattering cross sections and scattering lengths for ground-state collisions of {sup 85}Rb as well as {sup 87}Rb.
P. Westphal +4 more
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[Energy-pooling collisions of rubidium atoms: Rb (5P(J)) + Rb (5P(J))--> Rb (5S) + Rb (nl = 5D,7S)].
Guang pu xue yu guang pu fen xi = Guang pu, 2010An experimental study of rubidium energy pooling collisions, Rb(5P(J)) + Rb(5P(J))-->Rb(nlJ') + Rb(5S), at thermal energies, was carried out in a cell. Atoms were excited to either the 5P 1/2 or 5P 3/2 state using a single-mode diode laser. The excited atom density and spatial distribution were mapped by monitoring the absorption of a counter ...
Bao-Xia, Mu +6 more
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Absorption of Rb-D Limes by Rb Filter Cell
Japanese Journal of Applied Physics, 1975The effects of absorption of Rb-D lines are studied with the combination of natural Rb lamps and natural Rb filter cells containing nitrogen at the pressures of 100 Tori and 152 Torr. It is found that the hyperfine components of D lines effective for optical pumping is obtained with Rb atoms of natural abundance both for lamps and for cells.
Toshiharu Tako +3 more
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Continuum- and bound-state pair absorption in Cs-Cs, Rb-Rb and Cs-Rb systems
Journal of Physics B: Atomic and Molecular Physics, 1980The absorption spectra of pure Cs and Rb vapours and a mixture of both have been measured in the wavelength region from 2300 to 3100 AA (photoionisation continuum of the atoms) in the temperature range from 410 to 540 degrees C. Pronounced absorption bands can be detected in this wavelength region.
R Hotop, K Niemax
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RB kinases and RB-binding proteins: new points of view
Trends in Biochemical Sciences, 1997The retinoblastoma protein (RB) binds to a variety of cellular proteins and suppresses cellular growth. Such interactions are regulated by phosphorylation during the cell cycle by several cyclin-dependent kinases, known as RB kinases. Clues to the specific physiological roles of different RB kinases have been obtained.
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Aşırı-soğuk gazda atomik(Rb+Rb, K+K, Rb+K) saçılma
AŞIRI-SOĞUK GAZDA ATOMİK(Rb+Rb, K+K, Rb+K) SAÇILMA(DOKTORA Tezi)M. Kemal ÖZTÜRKGAZİ ÜNİVERSİTESİFEN BİLİMLERİ ENSTİTÜSÜOcak 2007ÖZET85Rb, 39K ve Rb-K izotop çarpışmalarıBu çalışmada aşırı düşük sıcaklıklardaiçin literatürde bulunan ab-initio ...
MUSTAFA KEMAL ÖZTÜRK
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Rb(5 ) and Rb(6 ) formation in Rb(5 )+Rb+( ) collisions by crossed molecular beams
Chemical Physics Letters, 1998T. Romero +6 more
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