نتایج جستجو برای: magnetic matter

تعداد نتایج: 540637  

1998
Y. F. Yuan

As a strange star spins down, the nuclear matter in its crust contracts continuously into the quark core. The confined nuclear matter is dissolved into quark matter, liberating a lot of thermal energy. This process is called deconfinement heating. It is found that deconfinement heating dramatically changes the thermal evolution of a strange star. For a strange star with a strong surface magneti...

2004
Daniel J. Cross Robert Gilmore

Mach’s principle states that the local inertial properies of matter are determined by the global matter distribution in the universe. In 1958 Cocconi and Salpeter suggested that due to the quadrupolar assymetry of matter in the local galaxy about the earth, inertia on earth would be slightly anisotropic, leading to unequal level splittings of nuclei in a magnetic field [1,2]. Hughes, et al., Dr...

2018
Ji-Woo Seok Jin-Hun Sohn

Citation: Seok J-W and Sohn J-H (2018) Altered Gray Matter Volume and Resting-State Connectivity in Individuals With Internet Gaming Disorder: A Voxel-Based Morphometry and Resting-State Functional Magnetic Resonance Imaging Study. Front. Psychiatry 9:77. doi: 10.3389/fpsyt.2018.00077 altered gray Matter Volume and resting-state connectivity in individuals With internet gaming Disorder: a Voxel...

1996
A. Y. Potekhin D. G. Yakovlev

We derive practical expressions for a rapid and accurate evaluation of electric and thermal conductivities and thermopower of degenerate relativistic electrons along quantizing magnetic elds in outer neutron star crusts. We consider the electron Coulomb scattering on ions in liquid matter, as well as on high-temperature phonons or charged impurities in solid matter. We propose also a reasonable...

Journal: :Archives of general psychiatry 1990
G Fein C Van Dyke L Davenport B Turetsky M Brant-Zawadzki L Zatz W Dillon P Valk

Although deep white-matter brain lesions are seen on magnetic resonance imaging in about one third of elderly subjects, their clinical significance is not known. In 1984, we studied three retired teachers who had extensive deep white-matter brain lesions on magnetic resonance imaging, yet functioned cognitively at an above-average level. Blinded review of 1981 computed tomographic scans reveale...

2015
Samuel N. Lockhart Steven J. Luck Joy Geng Laurel Beckett Elizabeth A. Disbrow Owen Carmichael Charles DeCarli

The mechanisms by which aging and other processes can affect the structure and function of brain networks are important to understanding normal age-related cognitive decline. Advancing age is known to be associated with various disease processes, including clinically asymptomatic vascular and inflammation processes that contribute to white matter structural alteration and potential injury. The ...

1995
A. Y. Potekhin D. G. Yakovlev

We derive practical expressions for a rapid and accurate evaluation of electric and thermal conductivities and thermopower of degenerate relativistic electrons along quantizing magnetic fields in outer neutron star crusts. We consider the electron Coulomb scattering on ions in liquid matter, as well as on high-temperature phonons or charged impurities in solid matter. We propose also a reasonab...

2000
D. Blaschke

We investigate magnetic properties of color superconducting quark matter within a Ginzburg-Landau approach. The simultaneous coupling of the quark fields to gluonic and electromagnetic gauge fields leads to “rotated electromagnetism” with a massive (Higgsed) and a massless photon-gluon field. We derive the Ginzburg-Landau equations for superconducting quark matter taking into account the “rotat...

Journal: :Neuroreport 2006
Jinna Kim Yong Wook Kim Chang-Il Park Eun Sook Park Hyang-Hee Kim Seung-Koo Lee Dong Ik Kim

We evaluated the integrity of the white matter tract using diffusion-tensor magnetic resonance imaging in children with language impairments who exhibited a structurally normal brain on conventional magnetic resonance imaging, and compared it with age-matched normal children. After generating fractional anisotropy and color-coded vector maps, fractional anisotropy values of the major white matt...

Journal: :Physical review letters 2016
Yonatan Kahn Benjamin R Safdi Jesse Thaler

When ultralight axion dark matter encounters a static magnetic field, it sources an effective electric current that follows the magnetic field lines and oscillates at the axion Compton frequency. We propose a new experiment to detect this axion effective current. In the presence of axion dark matter, a large toroidal magnet will act like an oscillating current ring, whose induced magnetic flux ...

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