Results 61 to 70 of about 452,519 (325)

Variably Protease‐Sensitive Prionopathy: Two New Cases With Motor Neuron‐Dementia Syndrome

open access: yesAnnals of Clinical and Translational Neurology, EarlyView.
ABSTRACT We describe two patients with variably protease‐sensitive prionopathy (VPSPr) who developed progressive upper motor neuron symptoms, insomnia, behavioral and cognitive decline, compatible with primary lateral sclerosis associated with frontotemporal dementia (FTD).
María Elena Erro   +10 more
wiley   +1 more source

Formation of "Lightnings" in a Neutron Star Magnetosphere and the Nature of RRATs

open access: yes, 2011
The connection between the radio emission from "lightnings" produced by the absorption of high-energy photons from the cosmic gamma-ray background in a neutron star magnetosphere and radio bursts from rotating radio transients (RRATs) is investigated ...
A. A. Abdo   +39 more
core   +1 more source

Clinical Spectrum and Outcomes of SOX1 Antibody‐Associated Paraneoplastic Neurological Syndromes: A Chinese Cohort Study

open access: yesAnnals of Clinical and Translational Neurology, EarlyView.
ABSTRACT Background SOX1 antibody‐positive paraneoplastic neurological syndromes (PNS) exhibit significant population‐specific clinical heterogeneity. While Western cohorts predominantly manifest Lambert‐Eaton myasthenic syndrome (65%–80%), comprehensive clinical characterization and treatment response data in Asian populations remain critically ...
Jin‐Long Ye   +11 more
wiley   +1 more source

Deep learning based bilateral filtering for edge-preserving denoising of respiratory-gated PET

open access: yesEJNMMI Physics
Background Residual image noise is substantial in positron emission tomography (PET) and one of the factors limiting lesion detection, quantification, and overall image quality. Thus, improving noise reduction remains of considerable interest.
Jens Maus   +6 more
doaj   +1 more source

Amelioration of Glioblastoma Multiforme via the Combination of Simulated Microgravity and Oncolytic Viral Therapy

open access: yesMedical Sciences Forum, 2023
Glioblastoma multiforme (GBM) is the most common aggressive malignant primary brain tumor, afflicting approximately 3.19 per 100,000 persons in the United States with an incidence 1.6 times higher in males compared to females.
Tarek Elshourbagy, James Robert Brašić
doaj   +1 more source

Electromagnetic cascade in high energy electron, positron, and photon interactions with intense laser pulses

open access: yes, 2013
The interaction of high energy electrons, positrons, and photons with intense laser pulses is studied in head-on collision geometry. It is shown that electrons and/or positrons undergo a cascade-type process involving multiple emissions of photons. These
Bulanov, S. S.   +3 more
core   +1 more source

CX3CL1 in Early Detection of Alzheimer's Disease: Plasma Dynamics Across Age and Disease Stages

open access: yesAnnals of Clinical and Translational Neurology, EarlyView.
ABSTRACT Backgrounds Alzheimer's disease (AD) is characterized by amyloid‐beta plaques, tau tangles, and neuroinflammation. C‐X3‐C motif chemokine ligand 1 (CX3CL1, also known as fractalkine), a neuroimmune chemokine implicated in AD pathogenesis, shows inconsistent alterations in plasma/serum across studies.
Ling Wang   +6 more
wiley   +1 more source

Negative-continuum dielectronic recombination into excited states of highly-charged ions

open access: yes, 2009
The recombination of a free electron into a bound state of bare, heavy nucleus under simultaneous production of bound-electron--free-positron pair is studied within the framework of relativistic first--order perturbation theory. This process, denoted as "
Artemyev, A. N.   +3 more
core   +1 more source

Ultrasonography Compared With Computed Tomography in Identifying Thoracic Aortic Aneurysms in Patients With Giant Cell Arteritis

open access: yesArthritis Care &Research, EarlyView.
Objective The objectives of this study were to evaluate the correlation and agreement between ultrasonography and computed tomography (CT) in measuring ascending aorta diameter in patients with giant cell arteritis (GCA) and to investigate the development of new ascending aortic aneurysms in patients with newly diagnosed GCA.
Anne C. Bull Haaversen   +4 more
wiley   +1 more source

Positron spectra from internal pair conversion observed in {238}U + {181}Ta collisions [PDF]

open access: yes, 2000
We present new results from measurements and simulations of positron spectra, originating from 238U + 181Ta collisions at beam energies close to the Coulomb barrier.
Berdermann, E.   +12 more
core   +3 more sources

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