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Mostrando ítems 241-250 de 261
Reducción de claridad en función de la posición angular de una fuente deslumbranteBrightness reduction as a function of the angular position of a glare source
(Sociedad Española de Óptica, 2009-12)
El efecto de difusión intraocular de luz generada por una fuente deslumbrante periférica se cuantifica mediante un modelo formulado empíricamente en términos de la luminancia de velo. Esta luminancia es directamente ...
Downscaling extreme month-long anomalies in southern South America
(Springer, 2010-01)
We investigate the performance of one stretched-grid atmospheric global model, five different regional climate models and a statistical downscaling technique in simulating 3 months (January 1971, November 1986, July 1996) ...
α-Amylase kinetic parameters modulation by lecithin vesicles: Binding versus entrapment
(Elsevier Science, 2000-06-15)
The effect of α-amylase-lipid interaction and entrapment inside lipidic soybean lecithin (PC) vesicles on the kinetic parameters of the enzyme was investigated. Human saliva was used as enzyme source and starch as substrate. ...
Molecular implications in the nanoencapsulation of the anti-tuberculosis drug rifampicin within flower-like polymeric micelles
(Elsevier Science, 2010-09)
Tuberculosis (TB) is the second most deadly infectious disease behind the Human Immunodeficiency Virus (HIV). An effective pharmacotherapy has been available for more than 5 decades. However, the length of the treatment ...
Atmospheric particulate matter from an industrial area as a source of metal nanoparticle contamination in aquatic ecosystems
(Elsevier B.V., 2021-01-20)
Air pollution legislation and control worldwide is based on the size of particulate matter (PM) to evaluate the effects on environmental and human health, in which the small diameter particles are considered more dangerous ...
Arm and interarm abundance gradients in CALIFA spiral galaxies
(EDP Sciences, 2017-07)
Spiral arms are the most singular features in disc galaxies. These structures can exhibit different patterns, namely grand design and flocculent arms, with easily distinguishable characteristics. However, their origin and ...
Novel Soluplus®-TPGS mixed micelles for encapsulation of paclitaxel with enhanced in vitro cytotoxicity on breast and ovarian cancer cell lines
(Elsevier Science, 2016-04)
The aim of this work was to develop mixed micelles based on two biocompatible copolymers of polyvinyl caprolactam-polyvinyl acetate-polyethylene glycol (Soluplus®) and D-α-tocopheryl polyethylene-glycol 1000 succinate ...
Los guardianes silenciosos de la Quebrada de Humahuaca: etnobotánica del “cardón” (Trichocereus atacamensis, Cactaceae) entre pobladores originarios en el Departamento Tilcara, Jujuy, ArgentinaThe silent guardians of the Quebrada de Humahuaca: the ethnobotany of the “cardón” (Trichocereus atacamensis, Cactaceae) among indigenous people of the Department of Tilcara (Jujuy, Argentina)
(Instituto de Botánica del Nordeste, 2018-05)
El “cardón”, Trichocereus atacamensis es una especie emblemática en la Quebrada de Humahuaca. Si bien hay datos dispersos en la literatura, hasta hoy su etnobotánica no ha sido foco de investigaciones. El objetivo del ...
Canopy active fluorescence spectrum tracks ANPP changes upon irrigation treatments in soybean crop
(Elsevier Science Inc., 2021-09)
Accurate estimation of aerial net primary production (ANPP) using remotely acquired data is one of the main challenges in both environmental monitoring and precision agriculture. Reflectance-based techniques have been ...
Formation and characterization of self-assembled bovine serum albumin nanoparticles as chrysin delivery systems
(Elsevier Science, 2019-01-01)
Chrysin (5,7-dihydroxyflavone) (Chrys) is a natural flavone extracted from many plants, and it has been proposed as a bioactive agent for cancer therapy. Nevertheless, its use is limited mainly due to its poor water ...