Results 111 to 120 of about 2,550,397 (296)

Fluid Biomarkers of Disease Burden and Cognitive Dysfunction in Progressive Supranuclear Palsy

open access: yesAnnals of Clinical and Translational Neurology, EarlyView.
ABSTRACT Objective Identifying objective biomarkers for progressive supranuclear palsy (PSP) is crucial to improving diagnosis and establishing clinical trial and treatment endpoints. This study evaluated fluid biomarkers in PSP versus controls and their associations with regional 18F‐PI‐2620 tau‐PET, clinical, and cognitive outcomes.
Roxane Dilcher   +10 more
wiley   +1 more source

Accurate Approximation for Resource Queuing Systems with Losses and Signals

open access: yesMathematics
We consider a queuing system with a finite number of servers and a finite pool of resources, where an arriving customer requires a server and random number of resources.
Alexander Maslov   +2 more
doaj   +1 more source

On Drift Parameter Estimation in Models with Fractional Brownian Motion by Discrete Observations

open access: yesAustrian Journal of Statistics, 2014
We study a problem of an unknown drift parameter estimation in a stochastic differen- tial equation driven by fractional Brownian motion. We represent the likelihood ratio as a function of the observable process.
Yuliya Mishura, Kostiantyn Ralchenko
doaj   +1 more source

Continuous Probability

open access: yes, 2001
The learner will review of some of the pertinent probability concepts that will be used in many of the other mathematical finance ...
Smith, David
core  

Basic elements and problems of probability theory [PDF]

open access: yes, 1999
After a brief review of ontic and epistemic descriptions, and of subjective, logical and statistical interpretations of probability, we summarize the traditional axiomatization of calculus of probability in terms of Boolean algebras and its set ...
Primas, Hans, Hans Primas
core  

Baseline Regional Cholinergic Denervation Predicts Cognitive Trajectories in Moderate Parkinson Disease

open access: yesAnnals of Clinical and Translational Neurology, EarlyView.
ABSTRACT Objective Cognitive decline is a disabling and variable feature of Parkinson disease (PD). While cholinergic system degeneration is linked to cognitive impairments in PD, most prior research reported cross‐sectional associations. We aimed to fill this gap by investigating whether baseline regional cerebral vesicular acetylcholine transporter ...
Taylor Brown   +6 more
wiley   +1 more source

The Holling Type II Population Model Subjected to Rapid Random Attacks of Predator

open access: yesJournal of Applied Mathematics, 2018
We present the analysis of a mathematical model of the dynamics of interacting predator and prey populations with the Holling type random trophic function under the assumption of random time interval passage between predator attacks on prey. We propose a
Jevgeņijs Carkovs   +2 more
doaj   +1 more source

A Prospective Study of Individuals at Risk of Multiple Sclerosis Informs the Design of Primary Prevention Studies

open access: yesAnnals of Clinical and Translational Neurology, EarlyView.
ABSTRACT Objective In multiple sclerosis, the optimal time for deploying a therapeutic intervention is before the central nervous system is damaged; given the success of trials treating the earliest stage of MS, the radiologically isolated syndrome, developing primary prevention strategies is an important next challenge.
Amy W. Laitinen   +7 more
wiley   +1 more source

Positive Correlation between Normal Serum Gastrin Concentrations and Antral and Duodenal G Cells

open access: yesCanadian Journal of Gastroenterology, 1994
It is controversial whether there is a correlation between serum gastrin concentrations and the density of G cells in the antral or duodenal mucosa. In this study, endoscopically obtained antral and duodenal biopsies were stained immunocytochemically for
WR Yacoub   +4 more
doaj   +1 more source

Two-Person Red-and-Black Games with Bet-Dependent Win Probability Functions

open access: yes, 2013
[[abstract]]In this paper a two-person red-and-black game is investigated. We suppose that, at every stage of the game, player I's win probability, f, is a function of the ratio of his bet to the sum of both players' bets. Two results are given: (i) if f
Chen, May-Ru; Hsiau, Shoou-Ren
core  

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