Results 111 to 120 of about 12,843,547 (264)

Second-order mollified derivatives and optimization [PDF]

open access: yes
The class of strongly semicontinuous functions is considered. For these functions the notion of mollified derivatives, introduced by Ermoliev, Norkin and Wets, is extended to the second order.
Rocca Matteo   +2 more
core  

A Two‐Stage Questionnaire and Actigraphy Screening for iRBD in a Multicenter Retrospective Cohort

open access: yesAnnals of Clinical and Translational Neurology, EarlyView.
ABSTRACT Objective Isolated rapid‐eye‐movement sleep behavior disorder is a prodromal marker of synucleinopathies. However, most cases remain undiagnosed due to the insufficient predictive value of questionnaires and limited access to confirmatory video‐polysomnography. We assessed a two‐stage screening strategy combining a brief questionnaire on rapid‐
Caleb A. Massimi   +17 more
wiley   +1 more source

Digital Cognitive Phenotyping for Differential Diagnosis and Monitoring in Neurological Conditions

open access: yesAnnals of Clinical and Translational Neurology, EarlyView.
ABSTRACT Objective To assess the utility, accessibility, and equivalence to supervised scales of online cognitive assessment in older individuals with cognitive impairment. Methods Patients with Alzheimer's disease (AD, n = 31), idiopathic normal pressure hydrocephalus (iNPH, n = 26), and traumatic brain injury (TBI, n = 23) completed online cognitive ...
Martina Del Giovane   +10 more
wiley   +1 more source

Strongly Sequentially Continuous Functions

open access: yes, 2004
unavailable at this time...Mathematics Subject Classification (2000): 26A99, 45E99, 46B99 Keywords: continuous functions, topological groups, completeness, Schur property, Dirichlet's Theorem, strongly sequential continuity, study, Banach, Banach ...
Borichev, A, Deville, R, Matheron, E
core  

Optimizing second-order differential equation systems

open access: yesElectronic Journal of Differential Equations, 2011
In this article we study some continuous versions of the Fletcher-Reeves iteration for minimization described by a system of second-order differential equations.
Tamas Hajba
doaj  

Observation of multiple time crystals in a driven-dissipative system with Rydberg gas

open access: yesNature Communications
Time crystals, as temporal analogs of space crystals, manifest as stable and periodic behavior that breaks time translation symmetry. In an open quantum system, many-body interaction subjected to dissipation allows one to develop the time crystalline ...
Yuechun Jiao   +7 more
doaj   +1 more source

Upper Cervical Cord Area as a Biomarker of Conversion to Secondary Progressive Multiple Sclerosis

open access: yesAnnals of Clinical and Translational Neurology, EarlyView.
ABSTRACT Objective This study assessed whether upper cervical cord area (UCCA) measured on routine brain MRI can serve as a biomarker of conversion to SPMS. Methods This is a single‐center retrospective cohort study of RRMS patients with cross‐sectional and longitudinal analyses of clinical and MRI data. Future SPMS converters were matched by age, sex,
Nabil K. El Ayoubi   +8 more
wiley   +1 more source

Almost strongly theta-e-continuous functions

open access: yes, 2016
WOS: 000373507700019We introduce and investigate a new class of functions called almost strongly theta-e-continuous functions, containing the classes of almost strongly theta-precontinuous [J. H. Park, S. W. Bae, Y. B. Park, Chaos Soli tons Fractals, 28 (
Ayhan, Burcu Sünbül, Özkoç, Murad
core  

Integrating Time‐Adjusted Imaging Instability Into Functional Outcome Prediction After Intracerebral Hemorrhage: Development and Validation of the HAGIV Score

open access: yesAnnals of Clinical and Translational Neurology, EarlyView.
ABSTRACT Objective Early risk stratification may support clinical decision‐making in spontaneous intracerebral hemorrhage (ICH). We aimed to develop and internally validate HAGIV, a score integrating frequency of imaging markers (FIM), a time‐adjusted non‐contrast computed tomography (CT) metric of hematoma expansion, with established predictors for 90‐
Lei Song   +10 more
wiley   +1 more source

A Continuous-Time Measurement of the Buy-Sell Pressure in a Limit Order Book Market [PDF]

open access: yes
In this paper, we investigate the buy and sell arrival process in a limit order book market. Using an intensity framework allows to estimate the simultaneous buy and sell intensity and to derive a continuous-time measure for the buy-sell pressure in the ...
Anthony D. Hall, Nikolaus Hautsch
core  

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