1,425 research outputs found
A Possible Origin of Magnetic Fields in Galaxies and Clusters: Strong Magnetic fields at z~10?
We propose that strong magnetic fields should be generated at shock waves
associated with formation of galaxies or clusters of galaxies by the Weibel
instability, an instability in collisionless plasmas. The strength of the
magnetic fields generated through this mechanism is close to the order of those
observed in galaxies or clusters of galaxies at present. If the generated
fields do not decay rapidly, this indicates that strong amplification of
magnetic fields after formation of galaxies or clusters of galaxies is not
required. This mechanism could have worked even at a redshift of ~10, and
therefore the generated magnetic fields may have affected the formation of
stars in protogalaxies. This model will partially be confirmed by future
observations of nearby clusters of galaxies. Mechanisms that preserve the
magnetic fields for a long time without considerable decay are discussed.Comment: Accepted for publication in MNRA
INFLUENCE OF NATURAL ENVIRONMENTAL CONDITIONS ON THE VERTEBRAL NUMBER OF THE POND SMELT, HYPOMESUS OLIDUS (PALLAS)
Complement Activation Product and Cytokine in Pachychoroid Neovasculopathy and Neovascular Age-Related Macular Degeneration
博士(医学)福島県立医科大
National Culture and the Preference for Management Controls: An exploratory Study of the Firm- Labor Market Interface
Abstract
This study uses Hofstede's taxonomy of work-related national cultural dimensions to analyze preferences for specific management controls at the interface between the organization and the external labor market. Four experiments were conducted with samples of last-semester Japanese and U.S. MBA students. Most of the results did not provide support for the four hypotheses. These findings used as the basis for suggesting
potential directions for future empirical refinements and theory construction
100KW Klasse-Elektronenstrahlen-SchweiBtechnologie (Bericht II) : Charakterristik der SchweiBraupen und deren Analyse
Effects of the Zero-Mode Landau Level on Inter-Layer Magnetoresistance in Multilayer Massless Dirac Fermion Systems
We report on the experimental results of interlayer magnetoresistance in
multilayer massless Dirac fermion system -(BEDT-TTF)I under
hydrostatic pressure and its interpretation. We succeeded in detecting the
zero-mode Landau level (n=0 Landau level) that is epected to appear at the
contact points of Dirac cones in the magnetic field normal to the
two-dimensional plane. The characteristic feature of zero-mode Landau carriers
including the Zeeman effect is clearly seen in the interlayer
magnetoresistance.Comment: 2 pages, 2 figure
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