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Early‐onset Alzheimer's disease shows a distinct neuropsychological profile and more aggressive trajectories of cognitive decline than late‐onset

open access: yesAnnals of Clinical and Translational Neurology, Volume 9, Issue 12, Page 1962-1973, December 2022., 2022
Abstract Objectives Early‐ and late‐onset Alzheimer's disease (EOAD and LOAD) share the same neuropathological traits but show distinct cognitive features. We aimed to explore baseline and longitudinal outcomes of global and domain‐specific cognitive function in a well characterized cohort of patients with a biomarker‐based diagnosis.
Adrià Tort‐Merino   +16 more
wiley   +1 more source

Weak Alternating Timed Automata [PDF]

open access: yesLogical Methods in Computer Science, 2012
Alternating timed automata on infinite words are considered. The main result is a characterization of acceptance conditions for which the emptiness problem for these automata is decidable.
Pawel Parys, Igor Walukiewicz
doaj   +1 more source

Lindstrom theorems for fragments of first-order logic [PDF]

open access: yesLogical Methods in Computer Science, 2009
Lindstr\"om theorems characterize logics in terms of model-theoretic conditions such as Compactness and the L\"owenheim-Skolem property. Most existing characterizations of this kind concern extensions of first-order logic.
Johan van Benthem   +2 more
doaj   +1 more source

Untyping Typed Algebras and Colouring Cyclic Linear Logic [PDF]

open access: yesLogical Methods in Computer Science, 2012
We prove "untyping" theorems: in some typed theories (semirings, Kleene algebras, residuated lattices, involutive residuated lattices), typed equations can be derived from the underlying untyped equations.
Damien Pous
doaj   +1 more source

Constraining the Galaxy's dark halo with RAVE stars [PDF]

open access: yes, 2014
We use the kinematics of ∼200000 giant stars that lie within ∼1.5kpc of the plane to measure the vertical profile of mass density near the Sun. We find that the dark mass contained within the isodensity surface of the dark halo that passes through the ...
T. Piffl   +19 more
semanticscholar   +1 more source

Sampled Semantics of Timed Automata [PDF]

open access: yesLogical Methods in Computer Science, 2010
Sampled semantics of timed automata is a finite approximation of their dense time behavior. While the former is closer to the actual software or hardware systems with a fixed granularity of time, the abstract character of the latter makes it appealing ...
Pavel Krcal   +2 more
doaj   +1 more source

Reachability and liveness in parametric timed automata [PDF]

open access: yesLogical Methods in Computer Science, 2022
We study timed systems in which some timing features are unknown parameters. Parametric timed automata (PTAs) are a classical formalism for such systems but for which most interesting problems are undecidable.
Étienne André   +2 more
doaj   +1 more source

Dense-Timed Petri Nets: Checking Zenoness, Token liveness and Boundedness [PDF]

open access: yesLogical Methods in Computer Science, 2007
We consider Dense-Timed Petri Nets (TPN), an extension of Petri nets in which each token is equipped with a real-valued clock and where the semantics is lazy (i.e., enabled transitions need not fire; time can pass and disable transitions).
Parosh Abdulla   +2 more
doaj   +1 more source

Massively parallel pattern recognition with link failures [PDF]

open access: yes, 2000
The capabilities of reliable computations in linear cellular arrays with communication failures are investigated in terms of pattern recognition. The defective processing elements (cells) that cause the misoperations are assumed to behave as follows ...
Kutrib, Martin, Löwe, Jan-Thomas
core   +1 more source

Piecewise testable tree languages [PDF]

open access: yesLogical Methods in Computer Science, 2012
This paper presents a decidable characterization of tree languages that can be defined by a boolean combination of Sigma_1 sentences. This is a tree extension of the Simon theorem, which says that a string language can be defined by a boolean combination
Mikołaj Bojańczyk   +2 more
doaj   +1 more source

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