Results 81 to 90 of about 2,423,805 (191)

Transport of secondary electrons and reactive species in ion tracks

, 2015
The transport of reactive species brought about by ions traversing tissue-like medium is analysed analytically. Secondary electrons ejected by ions are capable of ionizing other molecules; the transport of these generations of electrons is studied using ...
Solov'yov, Andrey V., Surdutovich, Eugene   +1 more
core   +1 more source

Radial and vertical angular momentum transport in protostellar discs

, 2007
Angular momentum in protostellar discs can be transported either radially, through turbulence induced by the magnetorotational instability (MRI), or vertically, through the torque exerted by a large-scale magnetic field.
A. Königl, A. Königl, A. Königl, Arieh Königl, F. Casse, F. Casse, G.I. Ogilvie, J. Goodman, J. Hawley, M. Wardle, M. Wardle, Mark Wardle, P. Hartigan, R. Krasnopolsky, R. Salmeron, R. Salmeron, R. Salmeron, R.D. Blandford, R.V.E. Lovelace, Raquel Salmeron, S.A. Balbus, T. Sano, T. Sano, T. Sano, T. Sano, Z.-Y. Li, Z.-Y. Li   +26 more
core   +1 more source

Cosmic-ray induced diffusion in interstellar ices

, 2014
Cosmic rays are able to heat interstellar dust grains. This may enhance molecule mobility in icy mantles that have accumulated on the grains in dark cloud cores.
Kalvans, Juris
core   +2 more sources

The impact of optic nerve movement on optic nerve magnetic resonance diffusion parameters

South African Journal of Radiology, 2014
Background: Optic nerve diffusion imaging is a useful investigational tool of optic nerve microstructure, but is limited by eye-movement-induced optic nerve movement and artifacts from surrounding cerebrospinal fluid, fat, bone and air.
Anand Moodley, William I.D. Rae, Yarish Brijmohan, Miranda Durand, Catherine Connolly, Andrew Michowicz, Ahmed Bhigjee   +6 more
doaj   +1 more source

Assessment of validity of local neoclassical transport theory for studies of electric-field root-transitions in the W7-X stellarator

Nuclear Fusion
The neoclassical ambipolarity condition governing the radial electric field in stellarators can have several solutions, and sudden transitions (in radius) between these can then take place. The radial position and structure of such a transition cannot be
M.D. Kuczyński, R. Kleiber, H.M. Smith, P. Helander, C.D. Beidler, M. Wappl, M. Borchardt, J. Geiger, S. Bozhenkov, A. Langenberg, T. Andreeva, the W7-X Team   +11 more
doaj   +1 more source

A Mechanism for the Oxygen and Iron Bimodal Radial Distribution Formation in the Disc of our Galaxy

, 2009
Recently it has been proposed that there are two types of SN Ia progenitors -- short-lived and long-lived. On the basis of this idea, we develope a theory of a unified mechanism for the formation of the bimodal radial distribution of iron and oxygen in ...
A. V. Tutukov, Acharova, Andrievsky, Asplund, B. M. Shustov, Chiappini, Chiosi, Clemens, Colavitti, D. S. Wiebe, Elmegreen, Fu, I. A. Acharova, Iben, J. R. D. Lépine, Kennicutt, Lacey, Landau, Lin, Luck, Lépine, Magrini, Mannucci, Massevich, Matteucci, Matteucci, Mishurov, Naab, Oort, Portinari, Portinari, Schönrich, Sellwood, Shaver, Tinsley, Tsujimoto, Tutukov, Twarog, Weinberg, Wiebe, Wielen, Woosley, Yu. N. Mishurov   +42 more
core   +1 more source

Lossy radial diffusion of relativistic Jovian electrons [PDF]

The radial diffusion equation with synchrotron losses was solved by the Laplace transform method for near-equatorially mirroring relativistic electrons.
Barbosa, D. D., Coroniti, F. V.
core   +1 more source

Modeling Enzymes Inhibition During Microparticles Formation

Nonlinear Analysis, 2003
A mathematical model of enzymes inhibition during microparticles formation has been developed. The model is based on radial substrate diffusion through diffusion layer that surrounds microparticle.
J. Kulys
doaj   +1 more source

\u3cem\u3eEx Vivo\u3c/em\u3e Diffusion Tensor Imaging of Spinal Cord Injury in Rats of Varying Degrees of Severity [PDF]

, 2013
The aim of this study was to characterize magnetic resonance diffusion tensor imaging (DTI) in proximal regions of the spinal cord following a thoracic spinal cord injury (SCI). Sprague–Dawley rats (n = 40) were administered a control, mild, moderate, or
Jirjis, Michael, Kurpad, Shekar N., Schmit, Brian D.   +2 more
core   +1 more source

Atividades hidrolíticas de amostras de conteúdo do intestino delgado de bovinos adultos, infectados ou não por Eurytrema sp, determinadas por difusão radial enzimática Hydrolytic activities of small intestine content as determined by radial enzyme diffusion in Eurytrema sp infected or non infected cattle

Ciência Rural, 2000
Empregando-se difusão radial enzimática em ágar gel, atividades hidrolíticas de amostras de conteúdo do intestino delgado de 38 bovinos adultos de matadouro foram mensuradas em animais agrupados como possuidores de pâncreas hígidos (controle) e ...
Pacífico Antônio Diniz Belém, Carlos Batista de Assis, Marcelo Lopes de Santana   +2 more
doaj   +1 more source