Results 101 to 110 of about 4,473,381 (352)

Active 2D materials for on-chip nanophotonics and quantum optics

open access: yesNanophotonics, 2017
Two-dimensional materials have emerged as promising candidates to augment existing optical networks for metrology, sensing, and telecommunication, both in the classical and quantum mechanical regimes.
Shiue Ren-Jye   +5 more
doaj   +1 more source

A synthesis of optically active key intermediate for the synthesis of optically active thromboxanes.

open access: yesAgricultural and Biological Chemistry, 1977
An optically active key intermediate, methyl 2, 4-dideoxy-4-C-carboxymethylene-α-d-ribo-hexopyranoside 2′→3 lactone (XII), for the syntheses of optically active Thromboxanes was prepared from d-glucose.
Sakae Emoto, Hiroshi Ohrui
openaire   +3 more sources

Aberrant expression of nuclear prothymosin α contributes to epithelial‐mesenchymal transition in lung cancer

open access: yesMolecular Oncology, EarlyView.
Nuclear prothymosin α inhibits epithelial‐mesenchymal transition (EMT) in lung cancer by increasing Smad7 acetylation and competing with Smad2 for binding to SNAI1, TWIST1, and ZEB1 promoters. In early‐stage cancer, ProT suppresses TGF‐β‐induced EMT, while its loss in the nucleus in late‐stage cancer leads to enhanced EMT and poor prognosis.
Liyun Chen   +12 more
wiley   +1 more source

HSI-IPNet: Hyperspectral Imagery Inpainting by Deep Learning With Adaptive Spectral Extraction

open access: yesIEEE Journal of Selected Topics in Applied Earth Observations and Remote Sensing, 2020
Feature representation is the key to the hyperspectral images (HSI) inpainting. Existing works mainly focus on using spectral and temporal auxiliary images to inpainting the corrupted region, which were proved to be low robust for all bands missing and ...
Rong Wong   +4 more
doaj   +1 more source

Tunable and reconfigurable metasurfaces and metadevices

open access: yesOpto-Electronic Advances, 2018
Metasurfaces, two-dimensional equivalents of metamaterials, are engineered surfaces consisting of deep subwavelength features that have full control of the electromagnetic waves.
Nemati Arash   +3 more
doaj   +1 more source

On the classical theory of molecular optical activity [PDF]

open access: yesarXiv, 2010
The basic principles of classical and semi-classical theories of molecular optical activity are discussed. These theories are valid for dilute solutions of optically active organic molecules. It is shown that all phenomena known in the classical theory of molecular optical activity can be described with the use of one pseudo-scalar which is a uniform ...
arxiv  

Optical Bistability in Active Devices [PDF]

open access: yesOptical Bistability, 1988
Optical bistability in both FP and DFB type LDs is an interesting subject because they have optical gain. Optical gain results in advantages such as low switching optical power, high ON-OFF ratio, and large fan-out. Bistable LDs can also operate faster than one nanosecond.
openaire   +3 more sources

Understanding and measuring mechanical signals in the tumor stroma

open access: yesFEBS Open Bio, EarlyView.
This review discusses cancer‐associated fibroblast subtypes and their functions, particularly in relation to extracellular matrix production, as well as the development of 3D models to study tumor stroma mechanics in vitro. Several quantitative techniques to measure tissue mechanical properties are also described, to emphasize the diagnostic and ...
Fàtima de la Jara Ortiz   +3 more
wiley   +1 more source

Expression and purification of E140 protein antigen fragments of Plasmodium vivax and Plasmodium berghei for serological assays

open access: yesFEBS Open Bio, EarlyView.
We provide a step‐by‐step guide for producing E140 antigen fragments from Plasmodium berghei (Pb1) and Plasmodium vivax (Pv1). Pb1/Pv1 are expressed in E. coli, solubilized by freeze–thawing, refolded by slow dilution, purified by affinity chromatography (IMAC), then concentrated and subjected to quality control.
Rodolfo Ferreira Marques   +5 more
wiley   +1 more source

Optical activity of a neutrino sea in the Standard Model [PDF]

open access: yesarXiv, 2000
We present the Standard Model calculation of the optical activity of a neutrino ...
arxiv  

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