Results 61 to 70 of about 713,115 (228)

Betweenness of partial orders [PDF]

open access: yesarXiv, 2020
We construct a monadic second-order sentence that characterizes the ternary relations that are the betweenness relations of finite or infinite partial orders. We prove that no first-order sentence can do that. We characterize the partial orders that can be reconstructed from their betweenness relations. We propose a polynomial time algorithm that tests
arxiv  

A stochastic approach to a new type of parabolic variational inequalities [PDF]

open access: yesarXiv, 2012
We study the following quasilinear partial differential equation with two subdifferential operators: $${\frac{\partial u}{\partial s}(s,x)} + (\mathcal{L}u)(s,x,u(s,x),(\nabla u(s,x))^\ast\sigma(s,x,u(s,x))) + f(s,x,u(s,x),(\nabla u(s,x))^\ast\sigma(s,x,u(s,x))) \in \partial\varphi(u(s,x)) + <\partial\psi(x),\nabla u(s,x)>, (s,x) \in[0,T]\times Dom\
arxiv  

Clot waveform analysis of prolonged activated partial thromboplastin time in various disorders

open access: yesIndian Journal of Pathology and Microbiology
Introduction: The prolongation in APTT reflects various disorders affecting the blood coagulation system. Automated coagulation analyzers such as ACL TOP, help in evaluating the clotting cascade by displaying clot reaction curves or waveforms. The fibrin
Apeksha Kadu, Ami M. Shah, Hansa Goswami
doaj   +1 more source

Preservers of partial orders on the set of all variance-covariance matrices [PDF]

open access: yesarXiv, 2019
Let $H_{n}^{+}(\mathbb{R})$ be the cone of all positive semidefinite $n\times n$ real matrices. Two of the best known partial orders that were mostly studied on subsets of square complex matrices are the L\"owner and the minus partial orders. Motivated by applications in statistics we study these partial orders on $H_{n}^{+}(\mathbb{R})$.
arxiv  

On solvability of a partial integral equation in the space ${L_2(Ω\timesΩ)}$ [PDF]

open access: yesarXiv, 2008
In this paper we investigate solvability of a partial integral equation in the space $L_2(\Omega\times\Omega),$ where $\Omega=[a,b]^\nu.$ We define a determinant for the partial integral equation as a continuous function on $\Omega$ and for a continuous kernels of the partial integral equation we give explicit description of the solution.
arxiv  

The frequency and timing of sepsis-associated coagulopathy in the neonatal intensive care unit

open access: yesFrontiers in Pediatrics
IntroductionSepsis is a common cause of morbidity and mortality in the neonatal intensive care unit (NICU). The frequency and severity of sepsis-associated coagulopathy as well as its relationship to illness severity are unclear.MethodsWe performed a ...
Khyzer B. Aziz   +4 more
doaj   +1 more source

Medical conditions associated with Prolonged Activated Partial Thromboplastin time in Swat

open access: yesGomal Journal of Medical Sciences, 2010
Background: APPT is a commonly requested laboratory test in various bleeding conditions and as a screening test preoperatively. It is also used to monitor heparin therapy.
Mukamil Shah   +4 more
doaj  

OMG-RL:Offline Model-based Guided Reward Learning for Heparin Treatment [PDF]

open access: yesarXiv
Accurate medication dosing holds an important position in the overall patient therapeutic process. Therefore, much research has been conducted to develop optimal administration strategy based on Reinforcement learning (RL). However, Relying solely on a few explicitly defined reward functions makes it difficult to learn a treatment strategy that ...
arxiv  

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