Results 31 to 40 of about 580,702 (219)

Doubly Special Relativity with a minimum speed and the Uncertainty Principle

open access: yes, 2017
The present work aims to search for an implementation of a new symmetry in the space-time by introducing the idea of an invariant minimum speed scale ($V$).
CLÁUDIO NASSIF   +14 more
core   +1 more source

“El cántaro” o la creatividad de lo vacuo en la poesía de José Ángel Valente

open access: yesArbor: Ciencia, Pensamiento y Cultura, 2007
A través del comentario de “El cántaro”, uno de los poemas más importantes del Valente de Poemas a Lázaro (1960), se estudia la importancia de la androginia en la poesía y en la poética valentianas.
José Andrés Calvo Rodríguez
doaj   +1 more source

On the spherically symmetric Einstein-Yang-Mills-Higgs equations in Bondi coordinates

open access: yes, 2012
We revisit and generalize, to the Einstein-Yang-Mills-Higgs system, previous results of D. Christodoulou and D. Chae concerning global solutions for the Einstein-scalar field and the Einstein-Maxwell-Higgs equations.
Tadmon, Calvin   +1 more
core   +1 more source

Noncommutative General Relativity [PDF]

open access: yes, 2005
We define a theory of noncommutative general relativity for canonical noncommutative spaces. We find a subclass of general coordinate transformations acting on canonical noncommutative spacetimes to be volume-preserving transformations.
A. Einstein   +4 more
core   +3 more sources

Circulating tumor cells: advancing personalized therapy in small cell lung cancer patients

open access: yesMolecular Oncology, EarlyView.
Small cell lung cancer (SCLC) is an aggressive form of lung cancer that spreads rapidly to secondary sites such as the brain and liver. Cancer cells circulating in the blood, “circulating tumor cells” (CTCs), have demonstrated prognostic value in SCLC, and evaluating biomarkers on CTCs could guide treatment decisions such as for PARP inhibitors ...
Prajwol Shrestha   +6 more
wiley   +1 more source

Late-time behaviour of the Einstein-Vlasov system with Bianchi I symmetry

open access: yes, 2010
The late-time behaviour of the Einstein-dust system is well understood for homogeneous spacetimes. For the case of Bianchi I we have been able to show that the late-time behaviour of the Einstein-Vlasov system is well approximated by the Einstein-dust ...
Calogero S   +8 more
core   +2 more sources

EDIÇÃO COMEMORATIVA DO CENTENÁRIO DA RELATIVIDADE ESPECIAL

open access: yesRevista Brasileira de História da Matemática, 2020
EDIÇÃO COMEMORATIVA DO CENTENÁRIO DA RELATIVIDADE ...
Albert Einstein
doaj   +1 more source

The evolution of radiation towards thermal equilibrium: A soluble model which illustrates the foundations of Statistical Mechanics

open access: yes, 2003
In 1916 Einstein introduced the first rules for a quantum theory of electromagnetic radiation, and he applied them to a model of matter in thermal equilibrium with radiation to derive Planck's black-body formula.
Boltzmann L.   +7 more
core   +1 more source

Patient Selection in Deep Brain Stimulation: A Role for Transcranial Direct Current Stimulation to Enhance the Levodopa Challenge?

open access: yesAnnals of Clinical and Translational Neurology, EarlyView.
ABSTRACT Dopaminergic medication and deep brain stimulation (DBS) improve motor symptoms in Parkinson's disease (PD), but levodopa response alone may not predict DBS outcomes. We retrospectively analyzed 19 PD patients undergoing levodopa challenges with and without prior transcranial direct current stimulation targeting a defined PD response network ...
Lukas L. Goede   +3 more
wiley   +1 more source

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