Results 101 to 110 of about 29,567,174 (335)

Spinal Cord Infarction Versus Idiopathic Transverse Myelitis: Clinical, Radiological, and Functional Insights From a Retrospective Cohort Study

open access: yesAnnals of Clinical and Translational Neurology, EarlyView.
ABSTRACT Introduction Spinal cord infarction (SCI) is a rare but devastating myelopathy, characterized by a high disability rate and an unfavorable prognosis. It has often been underdiagnosed and misdiagnosed as idiopathic transverse myelitis (ITM). This study aimed to describe the clinical features, radiological biomarkers, treatments, and functional ...
Zeqiang Ji   +13 more
wiley   +1 more source

The empirical TES methodology: modeling empirical time series

open access: yesInternational Journal of Stochastic Analysis, 1997
TES (Transform‐Expand‐Sample) is a versatile class of stochastic sequences defined via an autoregressive scheme with modulo‐1 reduction and additional transformations. The scope of TES encompasses a wide variety of sample path behaviors, which in turn give rise to autocorrelation functions with diverse functional forms ‐ monotone, oscillatory ...
openaire   +1 more source

Model Checks Using Residual Marked Empirical Processes [PDF]

open access: yes
This paper proposes omnibus and directional tests for testing the goodness-of-fit of a parametric regression time series model. We use a general class of residual marked empirical processes as the building-blocks for estimation and testing of such models.
Juan Carlos Escanciano
core  

Empirical likelihood test in a posteriori change-point nonlinear model

open access: yes, 2014
In this paper, in order to test whether changes have occurred in a nonlinear parametric regression, we propose a nonparametric method based on the empirical likelihood.
Ciuperca, Gabriela, Salloum, Zahraa
core   +3 more sources

Clustering Algorithm Reveals Dopamine‐Motor Mismatch in Cognitively Preserved Parkinson's Disease

open access: yesAnnals of Clinical and Translational Neurology, EarlyView.
ABSTRACT Objective To explore the relationship between dopaminergic denervation and motor impairment in two de novo Parkinson's disease (PD) cohorts. Methods n = 249 PD patients from Parkinson's Progression Markers Initiative (PPMI) and n = 84 from an external clinical cohort.
Rachele Malito   +14 more
wiley   +1 more source

An overview of water erosion modeling in China: a bibliometric and statistical analysis [PDF]

open access: yesFrontiers of Agricultural Science and Engineering
Soil erosion models are effective tools for assessing soil erosion indicators and simulating erosion processes. China has some of the most severe soil erosion in the world.
Wenli RAO   +6 more
doaj   +1 more source

An Empirical Model for Durations in Stocks [PDF]

open access: yes
This paper considers an extension of the univariate autoregressive conditional duration model to which durations from a second stock are added. The model is empirically used to study durations in two traded stocks, Ericsson B and AstraZeneca, on the ...
Simonsen, Ola
core   +1 more source

A Refinancing Model of Decentralization with Empirical Evidence from China [PDF]

open access: yes, 2002
Decentralization can complement market liberalization by strengthening incentives of agents to exploit local information in response to market signals. In China, however, banks centralized lending authority following financial reforms in the mid-1990s.
Park, Albert, Shen, Minggao
core  

Adjusted Empirical Likelihood for Long-memory Time Series Models

open access: yes, 2016
Empirical likelihood method has been applied to short-memory time series models by Monti (1997) through the Whittle's estimation method. Yau (2012) extended this idea to long-memory time series models. Asymptotic distributions of the empirical likelihood
Gamage, Ramadha D. Piyadi   +2 more
core   +1 more source

A 73‐Year‐Old Man With Several Years of Difficulty Climbing Stairs and Frequent Tripping

open access: yesAnnals of Clinical and Translational Neurology, EarlyView.
ABSTRACT A 73‐year‐old man presented with progressive weakness and atrophy predominantly affecting the distal finger flexors and quadriceps muscles. Electrophysiological studies demonstrated mixed myogenic and neurogenic features. Muscle MRI showed inflammatory changes, and muscle biopsy revealed granulomatous myositis with histologic features ...
Mehmet Can Sari   +3 more
wiley   +1 more source

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