Results 301 to 310 of about 20,975 (356)

Mapping Neurodegenerative Changes in Clinically Uncertain Parkinsonian Syndrome Patients Using Fast MR Spin TomogrAphy in Time‐Domain (MR‐STAT) Relaxometry at 3T

open access: yesJournal of Magnetic Resonance Imaging, EarlyView.
ABSTRACT Background MR Spin TomogrAphy in Time‐domain (MR‐STAT) enables accelerated multiparametric relaxometry (T1/T2). Previous relaxometry studies predominantly compared Parkinson's disease patients with healthy controls (HC). The potential of relaxometry to distinguish neurodegenerative from non‐neurodegenerative parkinsonism in clinically ...
Martin B. Schilder   +15 more
wiley   +1 more source

MRI Diffusion Tensor Image Analysis Along the Perivascular Space: Effects of Mean Tract Orientation Divergence

open access: yesJournal of Magnetic Resonance Imaging, EarlyView.
ABSTRACT Background The diffusion tensor image analysis along the perivascular space (DTI‐ALPS) index is an established term, and ongoing research aims to explore underlying mechanisms. Hypothesis DTI‐ALPS measures are influenced by subject‐specific orientational differences of the projection and association fibers. Study Type Prospective.
Dávid Bognár   +9 more
wiley   +1 more source

Cartesian beams

Optics Letters, 2007
A new and very general beam solution of the paraxial wave equation in Cartesian coordinates is presented. We call such a field a Cartesian beam. The complex amplitude of the Cartesian beams is described by either the parabolic cylinder functions or the confluent hypergeometric functions, and the beams are characterized by three parameters that are ...
Miguel A, Bandres   +1 more
openaire   +2 more sources

CARTESIAN PASSIONS AND CARTESIAN DUALISM

Pacific Philosophical Quarterly, 1990
Abstract Descartes’s most famous and important metaphysical thesis is mind-body dualism. Mind and body are distinct substances having different natures or essences. The essence of mind is the attribute thought, and the essence of body is the attribute extension.
openaire   +1 more source

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