Results 41 to 50 of about 246,176 (312)

Black Holes: from Speculations to Observations [PDF]

open access: yes, 2006
This paper provides a brief review of the history of our understanding and knowledge of black holes. Starting with early speculations on ``dark stars'' I discuss the Schwarzschild "black hole" solution to Einstein's field equations and the development of
Baumgarte, Thomas W.
core   +2 more sources

Cognitive Behavioral Therapy for Youth with Childhood‐Onset Lupus: A Randomized Clinical Trial

open access: yesArthritis Care &Research, Accepted Article.
Objective Our objective was to determine the feasibility and acceptability of the Treatment and Education Approach for Childhood‐onset Lupus (TEACH), a six‐session cognitive behavioral intervention addressing depressive, fatigue, and pain symptoms, delivered remotely to individual youth with lupus by a trained interventionist.
Natoshia R. Cunningham   +29 more
wiley   +1 more source

Cirurgia robótica em Cardiologia: um procedimento seguro e efetivo

open access: yesEinstein (São Paulo)
OBJETIVO: Avaliar os resultados em curto e médio prazo dos pacientes submetidos à cirurgia cardíaca minimamente invasiva robô-assistida. MÉTODOS: De março de 2010 a março de 2013, 21 pacientes foram submetidos à cirurgia cardíaca robô-assistida.
Robinson Poffo   +10 more
doaj   +1 more source

Synchrotron Radiation for Quantum Technology

open access: yesAdvanced Functional Materials, EarlyView.
Materials and interfaces underpin quantum technologies, with synchrotron and FEL methods key to understanding and optimizing them. Advances span superconducting and semiconducting qubits, 2D materials, and topological systems, where strain, defects, and interfaces govern performance.
Oliver Rader   +10 more
wiley   +1 more source

Photoactivation of NV Centers in Diamond via Continuous Wave Laser Illumination of Shallow As‐Implanted Nitrogen

open access: yesAdvanced Functional Materials, EarlyView.
This study demonstrates an alternative method of creating charge‐stable negatively charged nitrogen vacancy (NV−) centers close to the diamond surface without high‐temperature annealing. By illuminating nitrogen‐implanted regions with a continuous‐wave 405 nm laser, NV− centers are induced, exhibiting electron spin coherence properties suitable for ...
Jens Fuhrmann   +4 more
wiley   +1 more source

Isolamento, cultivo e caracterização de células-tronco CD133+ de glioblastoma humano [PDF]

open access: yes, 2012
OBJECTIVE: To establish the method of isolation and culture of human glioblastoma neurospheres, and the purification of their stem cells, followed by the process of obtaining tumor subspheres, immunophenotypically characterizing this clonogenic set ...
Brandt, Reynaldo Andre   +11 more
core   +2 more sources

Multimodal Structural Color Graphics Based on Colloidal Photonic Microdome Arrays

open access: yesAdvanced Functional Materials, EarlyView.
A hybrid photonic system combining colloidal crystals and microscale domes is designed to achieve four switchable optical states via the interplay of Bragg reflection and TIR interference. The graphics composed of the photonic microdome arrays provide tunable, angle‐sensitive structural coloration and concealed‐to‐revealed transitions, offering a ...
Jun‐Gu Kang   +4 more
wiley   +1 more source

Albert Einstein: Un Sionismo Pacifista Albert Einstein: Un Sionismo Pacifista

open access: yesActa Universitaria, 2012
Además del científico más conocido en el pasado siglo XX, Albert Einstein (1879-1955) fue un activo militante por el pacifismo a la vez que un nacionalista judío firme partidario de un estado para su pueblo.
Francisco A. Laca Arocena
doaj  

Low compliance with alcohol gel compared with chlorhexidine for hand hygiene in ICU patients: results of an alcohol gel implementation program

open access: yesBrazilian Journal of Infectious Diseases
Although the introduction of alcohol based products have increased compliance with hand hygiene in intensive care units (ICU), no comparative studies with other products in the same unit and in the same period have been conducted.
Luis Fernando Aranha Camargo   +7 more
doaj   +1 more source

Axoval neuropathy as initial manifestation of primary amyloidosis: report of a case submitted to bone marrow transplantation [PDF]

open access: yesArquivos de Neuro-Psiquiatria, 2004
Amyloidosis is a syndrome characterized by deposition of a highly insoluble protein material in the extracellular space that may affect several organs. It may be generalized and idiopathic (primary amyloidosis).
Orlando G. Povoas Barsottini   +6 more
doaj   +1 more source

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