Results 61 to 70 of about 922,464 (301)

UNA PROPUESTA PARA REGISTRAR EL DESPLAZAMIENTO DOPPLER DE ONDAS DE LUZ Y “OÍR” SUS BATIDOS

open access: yesAnales (Asociación Física Argentina), 2012
A pesar que el corrimiento Doppler es un tópico bien conocido, el diseño de experimentos para su enseñanza utilizando ondas de luz no es simple. Esta es una de las razones por la que generalmente, en cursos de física básica, la enseñanza de este tema se ...
G G Romero   +3 more
doaj  

Self-calibrating d-scan: measuring ultrashort laser pulses on-target using an arbitrary pulse compressor

open access: yesScientific Reports, 2018
In most applications of ultrashort pulse lasers, temporal compressors are used to achieve a desired pulse duration in a target or sample, and precise temporal characterization is important.
Benjamín Alonso   +2 more
doaj   +1 more source

Generating clean few-cycle pulses in an all-bulk multipass cell scheme [PDF]

open access: yesEPJ Web of Conferences
We theoretically demonstrate the generation of clean few-cycle pulses in a three-stage all-bulk multipass cell scheme. By meticulously selecting the number of round trips and the width of the material used in each cell, we are able to keep the three ...
Segundo Staels Víctor Wilfried   +2 more
doaj   +1 more source

Valores DIAGNOdent en esmalte temporal después de la irradiación con láser Er:YAG Vs CO2 [PDF]

open access: yes, 2017
El presente trabajo tuvo como objetivo determinar los valores DIAGNOdent en esmalte temporal después de la irradiación con láser Er:YAG vs. CO2.La detección oportuna de las lesiones de caries antes de que se presente una ruptura del esmalte es ...
Avilés Hurtado, Mario Alberto   +1 more
core  

Validez y fiabilidad del sensor láser del sistema BioLaserSport® para el análisis de la velocidad de la carrera [PDF]

open access: yes, 2012
El análisis de la velocidad de carrera mediante sensores láser permite la obtención de datos en tiempo real siendo ventajosos frente a otros sistemas.
Aguado-Gomez, Raquel   +3 more
core   +5 more sources

Multi‐omics and low‐input proteomics profiling reveals dynamic regulation driving pluripotency initiation in early mouse embryos

open access: yesFEBS Open Bio, EarlyView.
Mouse pre‐implantation development involves a transition from totipotency to pluripotency. Integrating transcriptomics, epigenetic profiling, low‐input proteomics and functional assays, we show that eight‐cell embryos retain residual totipotency features, whereas cytoskeletal remodeling regulated by the ubiquitin‐proteasome system drives progression ...
Wanqiong Li   +8 more
wiley   +1 more source

Topological high-harmonic spectroscopy

open access: yesCommunications Physics
Linearly polarized vector beams are structured lasers whose topology is characterized by a well-defined Poincaré index, which is a topological invariant during high-order harmonic generation.
Ana García-Cabrera   +6 more
doaj   +1 more source

El láser: una contundente arma de guerra o un afilado bisturí [PDF]

open access: yes, 1983
José Antonio Martín Pereda, vicerrector de Investigación de la Universidad Politécnica de Madrid en 1983, nos cuenta cómo en 1957 el norteamericano Townes y los soviéticos Basov y Prokorov desarrollaron, al mismo tiempo, el primer máser, apareciendo ...
Martín Pereda, José Antonio
core   +1 more source

HIV‐1 establishes immediate latency in T cells expressing the viral Nef protein

open access: yesFEBS Open Bio, EarlyView.
Nef is a viral protein often omitted from HIV‐1 reporter viruses. Consequently, its role in viral latency is unclear. We developed three novel dual reporter HIV‐1 derivatives that express Nef and allow for detection of latent and productive infection. Using these reporters, we show that Nef does not affect the establishment of immediate viral latency ...
Cindy Lam, Ivan Sadowski
wiley   +1 more source

Análisis Geométrico y Microestructural de Recubrimientos de NiCoCrAlYTa proyectados por láser sobre láminas de acero inoxidable AISI 316L

open access: yes, 2014
[EN] In this work, the NiCoCrAlYTa Alloy was deposited by laser cladding with different processing parameters (flow rate of powder supplied, feed speed and laser power), in order to analyze the effects of processing on the geometry, microstructure and properties of the coating.
Pereira F, Juan C   +3 more
openaire   +3 more sources

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