crudity

　

PrepTutorEJDIC

1. 〈U〉天然のままであること,なま[の状態] / 〈U〉未熟;〈C〉未熟なもの / 〈U〉粗雑,粗野;〈C〉粗雑(粗野)なもの

English Journal

• Calculation of x-ray spectra emerging from an x-ray tube. Part I. electron penetration characteristics in x-ray targets.

• Poludniowski GG1, Evans PM.Author information 1Joint Department of Physics, Institute of Cancer Research and The Royal Marsden NHS Foundation Trust, Downs Road, Sutton, Surrey SM2 5PT, United Kingdom. gavin.poludniowski@icr.ac.ukAbstractThe penetration characteristics of electron beams into x-ray targets are investigated for incident electron kinetic energies in the range 50-150 keV. The frequency densities of electrons penetrating to a depth x in a target, with a fraction of initial kinetic energy, u, are calculated using Monte Carlo methods for beam energies of 50, 80, 100, 120 and 150 keV in a tungsten target. The frequency densities for 100 keV electrons in Al, Mo and Re targets are also calculated. A mixture of simple modeling with equations and interpolation from data is used to generalize the calculations in tungsten. Where possible, parameters derived from the Monte Carlo data are compared to experimental measurements. Previous electron transport approximations in the semiempirical models of other authors are discussed and related to this work. In particular, the crudity of the use of the Thomson-Whiddington law to describe electron penetration and energy loss is highlighted. The results presented here may be used towards calculating the target self-attenuation correction for bremsstrahlung photons emitted within a tungsten target.
• Medical physics.Med Phys.2007 Jun;34(6):2164-74.
• The penetration characteristics of electron beams into x-ray targets are investigated for incident electron kinetic energies in the range 50-150 keV. The frequency densities of electrons penetrating to a depth x in a target, with a fraction of initial kinetic energy, u, are calculated using Monte Ca
• PMID 17654919

• Higher cortical function deficits after stroke: an analysis of 1,000 patients from a dedicated cognitive stroke registry.

• Hoffmann M.Author information Department of Neurology, The Nelson Mandela Medical School, University of Natal, Durban, South Africa. mhoff2@pop.uky.eduAbstractOBJECTIVE: Despite spectacular success of animal model neuroprotective therapy in stroke, these agents have been uniformly unsuccessful in humans. One possible explanation is the crudity of cerebral measurement by insensitive of stroke scales comprising scant or absent higher cortical-function parameters and the heterogeneity of stroke syndromes and etiology. We sought to determine the frequency and extent of cognitive disorders after stroke and their relation to stroke risk factors, syndromes, lesion site, and etiology.
• Neurorehabilitation and neural repair.Neurorehabil Neural Repair.2001;15(2):113-27.
• OBJECTIVE: Despite spectacular success of animal model neuroprotective therapy in stroke, these agents have been uniformly unsuccessful in humans. One possible explanation is the crudity of cerebral measurement by insensitive of stroke scales comprising scant or absent higher cortical-function param
• PMID 11811253

• Macromolecular crowding: effects on actin polymerisation.

• Lindner RA1, Ralston GB.Author information 1Department of Biochemistry, University of Sydney, NSW, Australia.AbstractDextran has been found to enhance the polymerisation of actin. This enhancement increases exponentially with increasing mass concentrations of dextran, in a manner that is consistent with excluded volume theory. Mathematical prediction of experimental results is difficult due to the fact that all participating species, namely F-actin, G-actin and dextran are best represented by differently shaped hard particles. Modelling dextran as a sphere of radius defined by an effective thermodynamic radius (Reff), we have predicted our experimental results to an acceptable degree, given the relative crudity of the model. The results imply that the highly crowded cellular environment may help to stabilise the filamentous actin network in vivo.
• Biophysical chemistry.Biophys Chem.1997 May 21;66(1):57-66.
• Dextran has been found to enhance the polymerisation of actin. This enhancement increases exponentially with increasing mass concentrations of dextran, in a manner that is consistent with excluded volume theory. Mathematical prediction of experimental results is difficult due to the fact that all pa
• PMID 9203331

Japanese Journal

• 宮城県の旧石器時代前・中期

• 第四紀研究 28(4), 283-292, 1989
• NAID 130001563113

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