Results 141 to 150 of about 14,285,590 (338)

Phase transitions in ethylene oxide – methyl methacrylate block copolymers [PDF]

open access: yes, 1993
This thesis describes the methods of anionic polymerisation and characterisation of poly(ethylene oxide) - poly(methyl methacrylate) block copolymers. Several experimental techniques have been used to study the phase transitions in these block copolymers
Richardson, Paul H.
core  

Global Rather Than Vertical‐Selective Saccadic Abnormalities in Progressive Supranuclear Palsy

open access: yesAnnals of Clinical and Translational Neurology, EarlyView.
ABSTRACT Objective To test whether vertical saccades are preferentially affected in Progressive Supranuclear Palsy (PSP). Methods PSP patients (n = 24) were compared to age‐matched controls (n = 94) and two degenerative groups (Alzheimer's disease, n = 20; Lewy body disease, n = 50).
Duy Duan Nguyen   +6 more
wiley   +1 more source

Stage‐Dependent β‐Synuclein Links MRI and Cognitive Decline in Alzheimer's Disease

open access: yesAnnals of Clinical and Translational Neurology, EarlyView.
ABSTRACT Objective Synaptic degeneration drives cognitive decline in Alzheimer's disease (AD), but synaptic biomarkers are scarce. Brain‐enriched β‐synuclein emerged as a synaptic damage marker. We investigated its diagnostic, prognostic, and structural correlates across the AD continuum.
Ulaş Ay   +15 more
wiley   +1 more source

Comparative Analysis of Choroid Plexus Volume Between MOG Antibody Associated Disease and Multiple Sclerosis

open access: yesAnnals of Clinical and Translational Neurology, EarlyView.
ABSTRACT Choroid plexus volume (CPV) has been proposed as a neuro‐immunological marker of multiple sclerosis (MS), but its relevance in myelin oligodendrocyte glycoprotein antibody–associated disease (MOGAD) remains uncertain. We analyzed CPV in 43 individuals with MOGAD, 48 with MS, and 44 healthy controls using a Bayesian Gaussian mixture modeling ...
Jae‐Won Hyun   +4 more
wiley   +1 more source

CALCULATION OF PHASE AND GROUP ANGLES, SLOWNESS SURFACES AND RAY TRACING IN TRANSVERSELY ISOTROPIC MEDIA Cálculo de ángulos de fase y grupo, superficies de lentitud y trazado de rayos en medios transversalmennte isótropos

open access: yesCT&F Ciencia, Tecnología & Futuro, 2006
This paper presents some fundamental concepts of seismic anisotropy specifically those which have hexagonal symmetry (ordinarily called transversely isotropic in geophysics jargon).
Karen Pachano   +5 more
doaj  

Loading Distributions in Asphalt Mixtures with the Virtual Dynamic Modulus Test

open access: yesCivilEng
The dynamic modulus of asphalt mixtures is a key design parameter in pavement design, which significantly impacts the mechanical properties of asphalt pavements.
Hui Yao   +5 more
doaj   +1 more source

Snapshot conical diffraction phase image measurement in angle-resolved microellipsometry

open access: yes, 2013
We describe a snapshot conical diffraction phase image measurement method in angle resolved microelliposometry employing an objective lens for incidence angle modulation.
Magnusson, Robert   +9 more
core   +1 more source

White Matter and Perivascular Imaging Changes in Alzheimer's Disease and Cerebral Amyloid Angiopathy

open access: yesAnnals of Clinical and Translational Neurology, EarlyView.
ABSTRACT Objective Peak‐width of skeletonized mean diffusivity (PSMD) and diffusion tensor imaging–analysis along the perivascular space (DTI‐ALPS), reflecting white matter integrity and glymphatic function, are altered in Alzheimer's disease (AD).
Debina Laishram   +3 more
wiley   +1 more source

Multi-Parameter Coupled Thermodynamic Analysis and Optimization of a Free-Piston Stirling Air Conditioner

open access: yesModelling
To enhance the thermal performance of a Stirling air conditioner, this study applies Schmidt-based dimensionless analysis to systematically investigate the influence of key structural parameters on its cooling and heating characteristics. A dimensionless
Yajuan Wang   +4 more
doaj   +1 more source

Revisão dos protocolos de tratamento para a maloclusão de Classe II de Angle [PDF]

open access: yes, 2012
TCC (graduação) - Universidade Federal de Santa Catarina. Centro de Ciências da Saúde. Odontologia.O objetivo desta revisão de literatura foi de apresentar os protocolos de tratamento para a maloclusão Classe II de Angle nas diferentes fases de ...
Iannuzzi, Carla Caroline Pauletto
core  

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