Results 111 to 120 of about 792,098 (298)

Reduced Muscular Carnosine in Proximal Myotonic Myopathy—A Pilot 1H‐MRS Study

open access: yesAnnals of Clinical and Translational Neurology, EarlyView.
ABSTRACT Objective Myotonic dystrophy type 2 (proximal myotonic myopathy, PROMM) is a progressive multisystem disorder with muscular symptoms (proximal weakness, pain, myotonia) and systemic manifestations such as diabetes mellitus, cataracts, and cardiac arrhythmias.
Alexander Gussew   +11 more
wiley   +1 more source

Developing a Multi-Objective Guidance Scenario for the Entry to the Earth’s Atmosphere [PDF]

open access: yesفصلنامه علوم و فناوری فضایی, 2014
In this paper, a multi-objective guidance scenario has been developed which could be used to improve the accuracy of sub-orbital modules at the entry to the earth’s atmosphere. Developed algorithm could be used for the trajectory shaping and adjusting of
A. R. Alemi Naeeni, J. Roshanian
doaj  

A preliminary design and implementation of the low-thrust simulation and trajectory search program (LOWTRAJ) [PDF]

open access: yes
The results are presented of one phase of research conducted for the JPL Solar Electric Propulsion (SEP) Navigation Software System development program.
Yen, C. L.
core   +1 more source

Berry phase due to quantum measurements [PDF]

open access: yes, 1999
The usual, "static" version of the quantum Zeno effect consists in the hindrance of the evolution of a quantum systems due to repeated measurements. There is however a "dynamic" version of the same phenomenon, first discussed by von Neumann in 1932 and ...
Facchi, P., Pascazio, S.
core   +1 more source

An analysis of chaos via contact transformation

open access: yes, 2003
Transition from chaotic to quasi-periodic phase in modified Lorenz model is analyzed by performing the contact transformation such that the trajectory in ${\Vec R}^3$ is projected on ${\Vec R}^2$.
Aizawa   +21 more
core   +1 more source

Acoustic Measures Capture Speech Dysfunction in Spinocerebellar Ataxia

open access: yesAnnals of Clinical and Translational Neurology, EarlyView.
ABSTRACT Objective Spinocerebellar ataxias (SCA) are hereditary cerebellar degenerative disorders with a common feature of dysarthria, involving impaired phonatory and articulatory control of speech, thereby affecting social communication. In this study, we investigated whether acoustic measures could objectively measure speech dysfunction and identify
Zena Fadel   +5 more
wiley   +1 more source

Trajectory Convex Optimization and Tracking Guidance for Hypersonic Vehicle [PDF]

open access: yesHangkong bingqi
In order to improve the penetration and survival performance of hypersonic vehicles in the unpowered glide section under incomplete guidance and detection information or interference of detection equipment, this paper establishes a dynamic model of ...
Wang Jirui, Xia Fengling
doaj   +1 more source

A windowed mean trajectory approximation for condensed phase dynamics [PDF]

open access: yesThe Journal of Chemical Physics
We propose a trajectory-based quasi-classical method for approximating dynamics in condensed phase systems. Building upon the previously developed optimized mean trajectory approximation that has been used to compute linear and nonlinear spectra, we borrow some ideas from filtering trajectory methods to obtain a novel semiclassical method for the ...
openaire   +4 more sources

Reconciliation of generalized refraction with diffraction theory

open access: yes, 2012
When an electromagnetic wave is obliquely incident on the interface between two homogeneous media with different refractive indices, the requirement of phase continuity across the interface generally leads to a shift in the trajectory of the wave. When a
David R. Smith   +9 more
core   +1 more source

Functional Connectivity Linked to Cognitive Recovery After Minor Stroke

open access: yesAnnals of Clinical and Translational Neurology, EarlyView.
ABSTRACT Objective Patients with minor stroke exhibit slowed processing speed and generalized alterations in functional connectivity involving frontoparietal cortex (FPC). The pattern of connectivity evolves over time. In this study, we examine the relationship of functional connectivity patterns to cognitive performance, to determine ...
Vrishab Commuri   +7 more
wiley   +1 more source

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