Buscar recursos académicos

Materias / palabras clave: Color.; Óptica.

Materias / palabras clave: Color (Filosofía); Óptica.

Pocas cosas hay en nuestro universo más fascinantes que la luz. La naturaleza de la luz y de la visión ha sido siempre uno de los temas más apasionantes en la historia de la humanidad. La luz es además uno de los pri...

La forma óptica de la epidemia de neuropatía, aparecida en el decenio pasado en Cuba, ha sido motivo de discusión por el posible hiperdiagnóstico, de los más de 22 000 casos notificados. El propósito principal de e...

ABSTRACT For different dyes like methyl green, methyl orange, methyl red, malachite green, crystal violate, safranin, and methylene blue. We calculated their optical constants like wavelengths of maximum absorption, mol...

Understanding how plasmonic nanostructures generate heat upon exposure to light, and thus increase the local temperature of the surrounding medium is important for many applications. Reliable temperature manipulation req...

Optical imaging and single-molecule imaging, in particular, utilize fluorescent tags in order to differentiate observed species by color. The degree of color multiplexing is dependent on the available spectral detection ...

Abstract Digital medicine leverages digital biomarkers by algebraically integrating multiple biomarkers to reflect disease status. Colorimetric analysis offers an intuitive readout, but colorimetric-based digital medicin...

Diabetes is a growing global health concern that requires continuous glucose monitoring. Conventional methods involve painful blood sampling, which is particularly challenging for young and elderly patients. Microneedle ...

An optical vortex possesses a ring-shaped spatial profile and orbital angular momentum (OAM) owing to its helical wavefront. This form of structured light has garnered significant attention in recent years, and it has e...

Abstract Campylobacteriosis is a common cause of gastrointestinal disease. In this study, we suggest a general strategy of applying gold nanoparticles (AuNPs) in colorimetric biosensors to detect Campylobacter in chicken...

Abstract Background: Colonoscopy is an essential procedure that allows screening for colorectal cancer and other lower bowel diseases. However, the procedure itself poses the risk of inducing bleeding and perforation tha...

In this study, thin nickel oxide nanomembranes were obtained using thermal chemical spraying technology, which involves spraying a green-colored chemical solution at a rate of 30 sprays onto glass substrates with an area...

Galaxies are often modeled as composites of separable components with distinct spectral signatures, implying that different wavelength ranges are only weakly correlated. They are not. We present a data-driven model that ...

Structural colors generated by optical micro-/nanostructures offer a notable advantage over traditional chemical pigments, including higher purity, greater brightness, resistance to fading, and enhanced environmental fri...

The image of Our Lady of Copacabana is a gilded polychrome sculpture manufactured in maguey wood at the end of the 16th century. It is a highly devotional image in the Andean region and her sanctuary lays at the shores o...

Context. Globular clusters (GCs) are witnesses of the past accretion events onto the Milky Way. In particular, the GCs of the Sagittarius (Sgr) dwarf galaxy are important probes of an on-going merger. Aims. Our main goal...

This study provides valuable insights into mineralogy and geology by detailing the preparation of geological thin sections and the use of light microscopy for mineral analysis. A total of 120 thin sections were prepared ...

Herein, the radiation patterns of single-split ring resonators (SSRRs) and double-split ring resonators (DSRRs) in the vertical direction are tailored by reconfiguring the resonator geometries. To design unequal arm leng...

Abstract Background This in vitro study aims to evaluate the effects of two different surface finishing procedures-glazing and polishing-on the stability of colour, the translucency, and the roughness of surface with thr...

The materials that compose the urban envelope are determinant for the reduction of heat gains and overheating of a city. Increasing the solar reflection of vertical materials is an efficient strategy to reduce urban temp...

The nitrogen-vacancy (NV) color center in diamond has rapidly emerged as an important solid-state system for quantum information processing. Whereas individual spin registers have been used to implement small-scale diamo...

Purpose: To evaluate postoperative results of pars plana vitrectomy combined with an inverted internal limiting membrane-flap technique and intravitreal injection of viscoelastic material for optic disc pit maculopathy c...