Results 51 to 60 of about 939,728 (251)

INFLUENCIA DE LA MAGNIFICACIÓN SOBRE LA EFICIENCIA ÓPTICA EN LÁSERES CON RESONADORES INESTABLES

open access: yesAnales (Asociación Física Argentina), 2006
La magnificación y el número de Fresnel determinan los modos y pérdidas de un resonador inestable vacío. Aquellos se ven alterados por la inclusión de un medio con ganancia más marcadamente que en una cavidad estable porque en una de este tipo el perfil
M. G. González   +3 more
doaj  

Raman‐based label‐free microscopic analysis of the pancreas in living zebrafish larvae

open access: yesFEBS Open Bio, EarlyView.
Forward stimulated Raman scattering (F‐SRS) and epi coherent anti‐Stokes Raman scattering (E‐CARS) allow label‐free discrimination of distinct subcellular structures in the pancreas of living zebrafish larvae. Given the straightforward applicability, we anticipate broad implementation of Raman microscopy in other organs and across various biomedical ...
Noura Faraj   +3 more
wiley   +1 more source

Excited States of Proton-bound DNA/RNA Base Homo-dimers: Pyrimidines [PDF]

open access: yes, 2014
We are presenting the electronic photo fragment spectra of the protonated pyrimidine DNA bases homo-dimers. Only the thymine dimer exhibits a well structured vibrational progression, while protonated monomer shows broad vibrational bands. This shows that
Adesokan A. a   +55 more
core   +5 more sources

Polarization‐resolved femtosecond Vis/IR spectroscopy tailored for resolving weak signals in biological samples using minimal sample volume

open access: yesFEBS Open Bio, EarlyView.
Unique biological samples, such as site‐specific mutant proteins, are available only in limited quantities. Here, we present a polarization‐resolved transient infrared spectroscopy setup with referencing to improve signal‐to‐noise tailored towards tracing small signals. We provide an overview of characterizing the excitation conditions for polarization‐
Clark Zahn, Karsten Heyne
wiley   +1 more source

Soldadura de aleaciones de aluminio con láseres de Nd:YAG de alta potencia

open access: yesRevista de Metalurgia, 1998
El uso del Al y sus aleaciones es creciente en la fabricación de vehículos de transporte. Su soldabilidad es menor que la de otros materiales y las aleaciones presentan cierta disminución de propiedades por pérdida de aleantes y/o de su tratamiento ...
J. A. García Orza
doaj   +1 more source

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

Enfermedad de Urbach-Wiethe: presentación de un caso con afectación bucal tratado con láser de CO2 [PDF]

open access: yes, 2015
Se presenta un caso de enfermedad de Urbach-Wiethe o lipoidoproteinosis con extensas lesiones orales que dificultaban la masticación. Se efectuó un remodelado gingival con fotobisturí de láser C02 en dos tiempos, con lo que se obtuvo un resultado ...
Berini Aytés, Leonardo   +3 more
core  

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

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  

Dapagliflozin prevents methylglyoxal‐induced retinal cell death in ARPE‐19 cells

open access: yesFEBS Open Bio, EarlyView.
Diabetic macular oedema is a diabetes complication of the eye, which may lead to permanent blindness. ARPE‐19 are human retinal cells used to study retinal diseases and potential therapeutics. Methylglyoxal is a compound increased in uncontrolled diabetes due to elevated blood glucose.
Naina Trivedi   +7 more
wiley   +1 more source

Home - About - Disclaimer - Privacy