Results 91 to 100 of about 1,951,720 (286)

Narcolepsy: immunity, neural circuitry, and brain network reconfiguration

open access: yesFrontiers in Immunology
IntroductionNarcolepsy is a rare sleep disorder characterized by cataplexy and excessive daytime sleepiness. The hallmark neuropathological feature is the selective loss of hypothalamic hypocretin (HCRT) neurons. This review systematically summarizes the
Jiajia Chen   +4 more
doaj   +1 more source

A Novel KCNA1 Variant in a Patient With Tremor and Autism Spectrum Disorder Causes Mixed LOF/GOF Defects of Kv1.1 Channels

open access: yesAnnals of Clinical and Translational Neurology, EarlyView.
ABSTRACT Variants in KCNA1, encoding the Kv1.1 potassium channel, cause neurological disorders including episodic ataxia and developmental and epileptic encephalopathy. We identified a novel KCNA1 variant (A401T) in a 16‐year‐old patient with autism spectrum disorder, borderline intellectual disability, and tremor, without episodic ataxia or epilepsy ...
Juan Darío Ortigoza‐Escobar   +7 more
wiley   +1 more source

Symmetry‐Guided Multifunctional Acoustic System Based on Mechanically Actuated Sonic Crystals

open access: yesAdvanced Engineering Materials, EarlyView.
This study presents the design, simulation, and experimental validation of amultifunctional acoustic metamaterial based on rotationally engineered sonic crystals.By tuning cylinder orientations, controllable band gaps and six distinct functionalities—including switching, topological insulation, beam splitting, and logic operations—areachieved ...
Yuanyan Zhao   +2 more
wiley   +1 more source

Anaesthetic breathing circuit obstruction due to blockage of tracheal tube connector by a foreign body - two cases [PDF]

open access: yes, 1999
Publisher's copy made available with the permission of the publisher© 1999 Australian Society of AnaesthetistsTwo cases are presented which illustrate the disastrous consequences possible when an anaesthetic breathing circuit is obstructed by a foreign ...
Moyes, Donald George, Foreman, M. J.
core  

Effectiveness of conceptual-framework-based instruction on promoting knowledge integration in learning simple electric circuit

open access: yesPhysical Review Physics Education Research
Student learning in simple electric circuits has been an important area in physics education research. This study builds off a previous investigation that applied the conceptual framework model to examine knowledge integration in student learning of ...
Zengze Liu, Sudong Pan, Lei Bao
doaj   +2 more sources

Entropy‐Driven Design of Low‐Melting‐Point Alloys via Compositionally Complex Strategy

open access: yesAdvanced Engineering Materials, EarlyView.
Conventional low‐melting‐point alloys (LMPAs) are limited by a narrow compositional space and inherent property trade‐offs. This review presents an entropy‐driven design strategy that overcomes these limitations, ushering in a new class of low‐melting‐point compositionally complex alloys (LMCCAs).
Yinghui Shang   +6 more
wiley   +1 more source

An efficient nonlinear circuit simulation technique [PDF]

open access: yes, 2004
This paper proposes a new and efficient approach for the analysis and simulation of circuits subject to input signals with widely separated rates of variation.
Condon, Marissa   +5 more
core   +3 more sources

Materials‐Driven Additive Manufacturing for Electrical Machines: Qualification‐Oriented Design Beyond Geometric Freedom

open access: yesAdvanced Engineering Materials, EarlyView.
This perspective reframes additive manufacturing for electrical machines as a qualification‐limited materials and architecture design problem. It links process–structure–property–performance relationships to magnetic, conducting, dielectric, and thermal property windows, highlighting where AM can enable segmented magnetic circuits, permanent magnet ...
Dénes Fodor, Loránd Szabó
wiley   +1 more source

Incorporating business requirements and constraints in database conceptual models

open access: yes, 2004
Entity relationship (ER) approach is predominantly used for conceptual modelling of database systems in terms of entities and their relationships. The approach does not provide sufficient support for incorporating business constraints and their impact on
Khan, Khaled M.   +2 more
core  

Circuit Based Quantification: Back to State Set Manipulation within Unbounded Model Checking [PDF]

open access: yes, 2005
In this paper a non-canonical circuit-based state set representation is used to efficiently perform quantifier elimination. The novelty of this approach lies in adapting equivalence checking and logic synthesis techniques, to the goal of compacting ...
Crivellari, M.   +4 more
core  

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