Results 141 to 150 of about 396,394 (172)

An investigation into the feasibility and efficacy of stereotactic radiosurgery for 1–3 cm single brain lesions on the ring‐mounted Halcyon LINAC

Journal of Applied Clinical Medical Physics, EarlyView.
Abstract Purpose An evaluation of the accuracy, safety, and efficiency of the Halcyon ring delivery system (RDS) for stereotactic radiosurgery (SRS) treatment to relatively small (1–3 cm) brain lesions. Methods After completing the extensive in‐house quality assurance checks including Winston–Lutz test and independent dose verification via MD Anderson ...
Kate Hazelwood, Shane McCarthy, Josh Misa, David Castelvetere, William St. Clair, Damodar Pokhrel   +5 more
wiley   +1 more source

Claustrum Volume Is Reduced in Multiple Sclerosis and Predicts Disability

Annals of Clinical and Translational Neurology, EarlyView.
ABSTRACT Objective The claustrum is a small, thin structure of predominantly gray matter with broad connectivity and enigmatic function. Little is known regarding the impact of claustrum pathology in multiple sclerosis (MS). Methods This study assessed whether claustrum volume was reduced in MS and whether reductions were associated with specific ...
Nicole Shelley, Bradley Judge, Dmitriy A. Yablonskiy, Robert T. Naismith, Matthew R. Brier, Anne H. Cross   +5 more
wiley   +1 more source

Music Interventions in Hyperacute and Acute Stroke Patients: A Randomized Controlled Pilot Feasibility Study

Annals of Clinical and Translational Neurology, EarlyView.
ABSTRACT Objective Music interventions have been shown to have beneficial effects on hemodynamic parameters, pain, and anxiety in various medical settings. However, music interventions in the setting of acute stroke have not been studied. The objective of this trial was to perform a pilot feasibility study of music interventions in the setting of acute
Jeffrey J. Fletcher, Allison Edberg, Ronald Grifka, Joan Westendorp, Augusto Elias, Jacquie Knott, Elizabeth Martin, Fazeel Siddiqui   +7 more
wiley   +1 more source

Fault, error, and failure

Journal of Applied Clinical Medical Physics, EarlyView.
Mohammad Bakhtiari
wiley   +1 more source

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Analytical Mechanics

2006
Abstract Analytical Mechanics is the investigation of motion with the rigorous tools of mathematics. Rooted in the works of Lagrange, Euler, Poincaré (to mention just a few), it is a very classical subject with fascinating developments and still rich of open problems. It addresses such fundamental questions as: Is the solar system stable?
MARMI, Stefano, FASANO A.
openaire   +2 more sources

Introduction to Analytical Mechanics

2019
This chapter presents several of the most important concepts from analytical dynamics. We derive Lagrange’s equation and how it can be used for the derivation of governing equations of motion. It is, especially, useful for the derivation of the equations of motion for systems, discrete or continuous, with more than one degree-of-freedom, where the ...
Haym Benaroya, Rene Gabbai, Sohrob Mottaghi   +2 more
openaire   +2 more sources

Principles of Analytical Mechanics

2012
As we have already mentioned in Chap. 1, a particle (or a system of particles) is subject to constraints if its motion is restricted by a constraint force on a certain surface, or on some curve, etc. The notion of constraint is essential in understanding the analytical mechanics formalism, and we shall begin this chapter with a thorough analysis of ...
Ioan Merches, Masud Chaichian, Anca Tureanu   +2 more
openaire   +2 more sources

Analytic Geometry and Singularities of Mechanisms

ZAMM, 1998
In this article, we analyse the geometrical structure of the set M of configurations of a mechanism. Using Lie groups language and without any hypothesis of regularity, one can attach to this set a structure of an analytic variety. We shall then compute the tangent cone at cach point of this set without introducing any coordinates and we shall deduce ...
openaire   +6 more sources

Review of Analytical Mechanics

2017
This chapter treats simple structural members based on two different analytical approaches. On the one hand based on fundamental equations of continuum mechanics, i.e., the kinematics, the equilibrium and the constitutive equation, the describing partial differential equations are provided, including their general solution based on constants of ...
openaire   +2 more sources

THE ANALYTICAL FOUNDATIONS OF CELESTIAL MECHANICS [PDF]

Nature, 1942
FROM the beginning of civilization one need must make itself felt, namely, for some form of calendar. In turn, this gives rise to the primitive study of astronomy, involving some knowledge of the sun and the moon. When the planets are added in the next stage, the astronomer needs an ephemeris or almanac ; the modern Nautical Almanac, with its ...
openaire   +1 more source