Results 81 to 90 of about 8,708,943 (308)

Digital Cognitive Testing in Mitochondrial Disease: Validity and Challenges for Clinical Trial Use

open access: yesAnnals of Clinical and Translational Neurology, EarlyView.
ABSTRACT Background Primary mitochondrial disease is a group of genetic disorders caused by pathogenic variants in nuclear or mitochondrial DNA, often resulting in progressive neurodegeneration and cognitive decline. Current management is primarily supportive, though recent research offers hope for disease‐modifying treatments in the future.
Oksana Pogoryelova   +9 more
wiley   +1 more source

Discrete Choice Survey Experiments: A Comparison Using Flexible Models [PDF]

open access: yes
This study investigates the convergent validity of discrete choice contingent valuation (CV) and contingent rating/ranking (CR) methods using flexible econometric methods. Our results suggest that CV and CR can produce consistent data (achieve convergent
Siikamaki, Juha, Layton, David F.
core  

Gravity‐Dependent Modulation of Downbeat Nystagmus: Insights From Velocity‐Storage Dysfunction

open access: yesAnnals of Clinical and Translational Neurology, EarlyView.
ABSTRACT Objective Downbeat nystagmus varies with head position, a phenomenon termed gravity‐dependent modulation. We aimed to clarify its mechanism using a velocity‐storage model. Methods In 10 patients with downbeat nystagmus due to cerebellar disorders, we recorded eye movements at different pitch‐ and roll‐axis head positions.
Ji‐Hyung Park   +5 more
wiley   +1 more source

The Use of Binary Choice Forests to Model and Estimate Discrete Choice Models

open access: yesSSRN Electronic Journal, 2019
Problem definition. In retailing, discrete choice models (DCMs) are commonly used to capture the choice behavior of customers when offered an assortment of products. When estimating DCMs using transaction data, flexible models (such as machine learning models or nonparametric models) are typically not interpretable and hard to estimate, while tractable
Ningyuan Chen   +2 more
openaire   +2 more sources

The role of the reference alternative in the specification of asymmetric discrete choice models [PDF]

open access: yes
Within the discrete choice modelling literature, there has been growing interest in including reference alternatives within stated choice survey tasks.
John M. Rose, Lorenzo Masiero
core  

Computation, efficiency and endogeneity in discrete choice models [PDF]

open access: yes, 2001
This thesis is a collection of five essays on different research problems related to discrete choice models. The problems, besides being different from each other in nature, also originate from different subdisciplines in economics. However, they have in
Sándor, Zsolt,, Sándor, Zsolt
core   +13 more sources

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

ADALS – Beitrag zur DEM-Partikelsimulation in der Landmaschinentechnik

open access: yesLandtechnik, 2014
The Discrete Element Method (DEM) is the tool of choice for simulation of agricultural material’s processing. For this are needed granular matter models, whose generation and parametrization is costly.
Andreas Prüfer   +2 more
doaj   +1 more source

CSF Cytokine Network Organization Predicts Progression Independent of Relapse and MRI Activity in Multiple Sclerosis

open access: yesAnnals of Clinical and Translational Neurology, EarlyView.
ABSTRACT Objective Progression independent of relapse activity is a major determinant of long‐term disability in multiple sclerosis, but its immunopathologic basis remains incompletely understood. We investigated whether relapse‐independent progression in radiologically stable relapsing–remitting multiple sclerosis is associated with distinct ...
Antonio Bruno   +19 more
wiley   +1 more source

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