Results 131 to 140 of about 1,570 (159)

Time trends in the burden of non-COVID-19 lower respiratory tract infections among children aged 0 to 14 years. [PDF]

open access: yesFront Cell Infect Microbiol
Lu W   +11 more
europepmc   +1 more source

Electric Resonance Spectrum of NaLi

The Journal of Chemical Physics, 1972
Δ M J =± 1 transitions from the J =1, MJ =0 and the J =2, MJ =0 molecular rotational states of 23Na7Li have been observed by the molecular beam electric resonance method at 1–15 MHz. With an experimental linewidth of 7.5 kHz, the nuclear hyperfine pattern consisted of six unresolved doublets.
J. Graff, P. J. Dagdigian, L. Wharton
openaire   +1 more source

Four Ghazals by Nali

2021
This is an English translation of four ghazals by Nalî (c. 1800 – c. 1856). Mallah Khidir, known by his pen name Nalî, was the most important Kurdish poet of the nineteenth century. He founded the Sorani School of Kurdish poetry, a literary movement which remains influential in the Sorani dialect of Kurdish today.
openaire   +1 more source

Laser-spectroscopic investigations of NaLi (A1Σ+)

Journal of Quantitative Spectroscopy and Radiative Transfer, 1991
Abstract Dunham coefficients for the A 1 Σ + state of the heteronuclear alkali dimer NaLi have been determined spectroscopically, using a CW ring dye laser, a heat pipe and a measurement of the fluorescence emitted from different parts of the cell.
K. Jungnickel, H.-G. Rubahn
openaire   +1 more source

Theoretical study on the electronic states of NaLi

The Journal of Chemical Physics, 2008
Configuration interaction calculations have been carried out on electronic states of the NaLi molecule and the cation NaLi+. Potential energy curves are presented for the lowest nine Σ1+, seven Π1, four Δ1, eight Σ3+, seven Π3, and four Δ3 states of NaLi as well as for the lowest ten Σ2+, six Π2, and two Δ2 states of NaLi+.
Petsalakis, Ioannis D.   +2 more
openaire   +2 more sources

Theoretical Study of the Σ+1, 3Σ+, 3Π, 1Π States of NaLi and the Σ+2 State of NaLi+

The Journal of Chemical Physics, 1970
Ab initio calculations have been performed for the NaLi molecule at a series of internuclear distances. The Hartree–Fock and extended Hartree–Fock optimized valence configuration (OVC) approximations of Das and Wahl are compared for the Σ+1 ground-state potential curve.
P. J. Bertoncini, G. Das, Arnold C. Wahl
openaire   +1 more source

Stark Effect of NaLi X 1Σ+

The Journal of Chemical Physics, 1971
The polarizabilities of the (J=1, M=0) and the (J=2, M=0) rotational states of the gaseous NaLi molecule have been measured by observing the refocusing voltages of a supersonic molecular beam with an electric quadrupole state selector. From these measurements the molecular electric dipole moment μ = 0.47 ± 0.03 D and the molecular electric ...
P. J. Dagdigian, J. Graff, L. Wharton
openaire   +1 more source

Collision-induced rotational transitions in nali(1Π)

Chemical Physics, 1973
Abstract Collision-induced rotational transitions in the electronically excited NaLi molecule have been studied using laser excited fluorescence. Due to the greater number of allowed transitions as compared with Na2 and Li2, more cases were found of transitions +ΔJ and −ΔJ having greatly different cross sections (“+/ - asymmetry”).
openaire   +1 more source

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