Results 131 to 140 of about 585,688 (307)

Homogeneity on three-dimensional contact metric manifolds

open access: yes, 1999
We study ball-homogeneity, curvature homogeneity, natural reductivity, conformal flatness and phi-symmetry for three-dimensional contact metric manifolds.
L. VANHECKE   +2 more
core   +1 more source

Problem perception and problem regulation during online collaborative learning: what is important for successful collaboration?

open access: yesFrontiers in Psychology
BackgroundUniversity students frequently prepare for exams or presentations in self-organized study groups. For this purpose, they often use videoconferencing software.
Martin Greisel   +3 more
doaj   +1 more source

A Satellite-Based Surface Radiation Climatology Derived by Combining Climate Data Records and Near-Real-Time Data

open access: yesRemote Sensing, 2013
This study presents a method for adjusting long-term climate data records (CDRs) for the integrated use with near-real-time data using the example of surface incoming solar irradiance (SIS).
Bodo Ahrens   +4 more
doaj   +1 more source

Association Between Motor Pathway Damage and Motor Deficit in Upper and Lower Limb in People With MS

open access: yesAnnals of Clinical and Translational Neurology, EarlyView.
ABSTRACT Objective Corticospinal tract damage is common in people with MS, but the degree of clinical symptoms varies. We hypothesize that corticospinal tract lesions are more extensive and severe in people with MS with motor impairments in both upper and lower limbs.
Mathilde Liffran   +13 more
wiley   +1 more source

Interlaboratory comparison material homogeneity testing [PDF]

open access: yes, 2015
The homogeneity of fertilizer samples for interlaboratory gamma-ray spectrometry comparison was tested by determination of the total. count rate and the count rates for two U-238. lines, one K-40 line and one common U-235 and Ra-226 line.
Pantelić, Gordana K.   +3 more
core   +1 more source

Study of component distribution in pharmaceutical binary powder mixtures by near infrared chemical imaging

open access: yesJournal of Spectral Imaging, 2012
Near infrared chemical imaging (NIR-CI) has recently emerged as an effective technique for extracting spatial information from pharmaceutical products in an expeditious, non-destructive and non-invasive manner. These features have turned it into a useful
Manel Bautista   +2 more
doaj   +1 more source

Sex‐Stratified Association of Regional Dopamine Transporter Binding With Disease Progression in Amyotrophic Lateral Sclerosis

open access: yesAnnals of Clinical and Translational Neurology, EarlyView.
ABSTRACT Objective To clarify the clinical relevance of dopamine transporter single‐photon emission computed tomography (DAT‐SPECT) abnormalities in amyotrophic lateral sclerosis (ALS), with a prespecified focus on sex‐stratified associations with disease progression and short‐term prognosis.
Tomoya Kawazoe   +7 more
wiley   +1 more source

Free Movement of Persons in the EU v. in the EEA: Of Effect-related Homogeneity and a Reversed Polydor Principle

open access: yesEuropean Papers, 2019
(Series Information) European Papers - A Journal on Law and Integration, 2018 3(3), 1429-1451 | Article | (Table of Contents) I. Introduction. - II. The incorporation of Directive 2004/38 into EEA law: legal framework. - III.
Christa Tobler
doaj   +1 more source

Electroencephalographic Normalization as a Biomarker of Clinical Recovery in Down Syndrome Regression Disorder

open access: yesAnnals of Clinical and Translational Neurology, EarlyView.
ABSTRACT Objective Down syndrome regression disorder is a syndrome characterized by subacute loss of cognitive, behavioral, and functional abilities in individuals with Down syndrome. Electroencephalography abnormalities are frequently observed during evaluation, but it remains unclear whether these findings represent a dynamic marker of disease ...
Jonathan D. Santoro   +14 more
wiley   +1 more source

Characterizing Cutaneous α‐Synuclein Deposition and Seeding Activity in Parkinson's Disease Subtypes

open access: yesAnnals of Clinical and Translational Neurology, EarlyView.
ABSTRACT Objective Cutaneous phosphorylated α‐synuclein (p‐syn) and α‐synuclein seeding activity are promising biomarkers for Parkinson's disease (PD), but their clinical value remains uncertain due to disease heterogeneity. This study evaluates these two biomarkers in PD patients to inform phenotype‐specific diagnosis and disease severity assessment ...
Yuting Jin   +8 more
wiley   +1 more source

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