1,071 research outputs found
Letter from Melvin J. Voigt and Robert L. Talmadge to Dr. M.C. Cunningham recommending construction of a new library
A letter from Melvin J. Voigt, Director of the Kansas State University Library, and Robert L. Talmadge, Acting Director of the University of Kansas Library, to Dr. Morton C. Cunningham, President of Fort Hays Kansas State College, recommending construction of a new library building for Forsyth Library.https://scholars.fhsu.edu/library_bldg/1079/thumbnail.jp
The 6 minute walk in idiopathic pulmonary fibrosis: longitudinal changes and minimum important difference
The response characteristics of the 6 minute walk test (6MWT) in studies of idiopathic pulmonary fibrosis (IPF) are only poorly understood, and the change in walk distance that constitutes the minimum important difference (MID) over time is unknown
Comparison of local and global gyrokinetic calculations of collisionless zonal flow damping in quasi-symmetric stellarators
The linear collisionless damping of zonal flows is calculated for
quasi-symmetric stellarator equilibria in flux-tube, flux-surface, and
full-volume geometry. Equilibria are studied from the quasi-helical symmetry
configuration of the Helically Symmetric eXperiment (HSX), a broken symmetry
configuration of HSX, and the quasi-axial symmetry geometry of the National
Compact Stellarator eXperiment (NCSX). Zonal flow oscillations and long-time
damping affect the zonal flow evolution, and the zonal flow residual goes to
zero for small radial wavenumber. The oscillation frequency and damping rate
depend on the bounce-averaged radial particle drift in accordance with theory.
While each flux tube on a flux surface is unique, several different flux tubes
in HSX or NCSX can reproduce the zonal flow damping from a flux-surface
calculation given an adequate parallel extent. The flux-surface or flux-tube
calculations can accurately reproduce the full-volume long-time residual for
moderate , but the oscillation and damping time scales are longer in local
representations, particularly for small approaching the system size.Comment: The following article has been accepted by Physics of Plasmas. After
it is published, it will be found at https://aip.scitation.org/journal/php.
33 pages, 18 figure
Comparison of local and global gyrokinetic calculations of collisionless zonal flow damping in quasi-symmetric stellarators
The linear collisionless damping of zonal flows is calculated for quasi-symmetric stellarator equilibria in flux-tube, flux-surface, and full-volume geometry. Equilibria are studied from the quasi-helical symmetry configuration of the Helically Symmetric eXperiment (HSX), a broken symmetry configuration of HSX, and the quasi-axial symmetry geometry of the National Compact Stellarator eXperiment (NCSX). Zonal flow oscillations and long-time damping affect the zonal flow evolution, and the zonal flow residual goes to zero for small radial wavenumber. The oscillation frequency and damping rate depend on the bounce-averaged radial particle drift in accordance with theory. While each flux tube on a flux surface is unique, several different flux tubes in HSX or NCSX can reproduce the zonal flow damping from a flux-surface calculation given an adequate parallel extent. The flux-surface or flux-tube calculations can accurately reproduce the full-volume long-time residual for moderate kx, but the oscillation and damping time scales are longer in local representations, particularly for small kx approaching the system size.</p
Senator James O. Eastland; Herman E. Talmadge; Bob Dole; Dick Clark; Edward Zorinsky; Walter D. Huddleston; S.I. Hayakawa; James B. Allen; Dick Stone; Hubert H. Humphrey; John Melcher; George McGovern; Carl T. Curtis; Milton Young; Patrick Leahy; Jesse Helms; & Richard Lugar to President Jimmy Carter, 20 October 1977
Copy typed letter signed dated 20 October 1977 from Eastland; Herman E. Talmadge; Bob Dole; Dick Clark; Edward Zorinsky; Walter D. Huddleston; S.I. Hayakawa; James B. Allen; Dick Stone; Hubert H. Humphrey; John Melcher; George McGovern; Carl T. Curtis; Milton Young; Patrick Leahy; Jesse Helms; & Richard Lugar to Carter, re: agricultural exports, farm prices, Commodity Credit Corporation; 2 pages.https://egrove.olemiss.edu/joecorr_h/1075/thumbnail.jp
Senator James O. Eastland; Herman E. Talmadge; Bob Dole; George McGovern; James B. Allen; Milton Young; Jesse Helms; Patrick Leahy; Henry Bellmon; S.I. Hayakawa; Carl T. Curtis; Richard Lugar; John Melcher; & Dick Clark to President Jimmy Carter, 14 October 1977
Copy typed letter signed dated 14 October 1977 from Eastland; Herman E. Talmadge; Bob Dole; George McGovern; James B. Allen; Milton Young; Jesse Helms; Patrick Leahy; Henry Bellmon; S.I. Hayakawa; Carl T. Curtis; Richard Lugar; John Melcher; & Dick Clark to Carter, re: New Orleans strike of International Longshoremens Association, grain exports; 2 pages.https://egrove.olemiss.edu/joecorr_h/1069/thumbnail.jp
Bob Dole, [Carl T. Curtis, Herman E. Talmadge, James O. Eastland, S.I. Hykawa possibly] to President Jimmy Carter, 31 January 1978
Copy typed letter signed dated 31 January 1978 from Bob Dole, [Curtis, Talmadge, Eastland, Hykawa possibly] to Carter, re: European Community trade negotiations, soybeans.https://egrove.olemiss.edu/joecorr_h/1090/thumbnail.jp
Using binary stars to bound the mass of the graviton
Interacting white dwarf binary star systems, including helium cataclysmic
variable (HeCV) systems, are expected to be strong sources of gravitational
radiation, and should be detectable by proposed space-based laser
interferometer gravitational wave observatories such as LISA. Several HeCV star
systems are presently known and can be studied optically, which will allow
electromagnetic and gravitational wave observations to be correlated.
Comparisons of the phases of a gravitational wave signal and the orbital light
curve from an interacting binary white dwarf star system can be used to bound
the mass of the graviton. Observations of typical HeCV systems by LISA could
potentially yield an upper bound on the inverse mass of the graviton as strong
as km (
eV), more than two orders of magnitude better than present solar system derived
bounds.Comment: 21 pages plus 4 figures; ReVTe
The Role of Media and Popular Culture in the Mis/Education of Adults
The purpose of this symposium is to explore multiple perspectives on the role of media in the education and mis-education of adults, and to consider how educators might draw on media in developing a critical public pedagogy
Depressed Neuromuscular Transmission Causes Weakness in Mice Lacking BK Potassium Channels
Mice lacking functional large-conductance voltage- and Ca2+-activated K+ channels (BK channels) are viable but have motor deficits including ataxia and weakness. The cause of weakness is unknown. In this study, we discovered, in vivo, that skeletal muscle in mice lacking BK channels (BK−/−) was weak in response to nerve stimulation but not to direct muscle stimulation, suggesting a failure of neuromuscular transmission. Voltage-clamp studies of the BK−/− neuromuscular junction (NMJ) revealed a reduction in evoked endplate current amplitude and the frequency of spontaneous vesicle release compared with WT littermates. Responses to 50-Hz stimulation indicated a reduced probability of vesicle release in BK−/− mice, suggestive of lower presynaptic Ca2+ entry. Pharmacological block of BK channels in WT NMJs did not affect NMJ function, surprisingly suggesting that the reduced vesicle release in BK−/− NMJs was not due to loss of BK channel–mediated K+ current. Possible explanations for our data include an effect of BK channels on development of the NMJ, a role for BK channels in regulating presynaptic Ca2+ current or the effectiveness of Ca2+ in triggering release. Consistent with reduced Ca2+ entry or effectiveness of Ca2+ in triggering release, use of 3,4-diaminopyridine to widen action potentials normalized evoked release in BK−/− mice to WT levels. Intraperitoneal application of 3,4-diaminopyridine fully restored in vivo nerve-stimulated muscle force in BK−/− mice. Our work demonstrates that mice lacking BK channels have weakness due to a defect in vesicle release at the NMJ
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