Search results for "Ave"

Fibronectin-binding nanoparticles for intracellular targeting addressed by B. burgdorferi BBK32 protein fragments.

2011

Virus-like particles (VLPs) are created by the self-assembly of multiple copies of envelope and/or capsid proteins from many viruses, mimicking the conformation of a native virus. Such noninfectious nanostructures are mainly used as antigen-presenting platforms, especially in vaccine research; however, some of them recently were used as scaffolds in biotechnology to produce targeted nanoparticles for intracellular delivery. This study demonstrates the creation of fusion VLPs using hepatitis B core protein-based system maintaining a fibronectin-binding property from B. burgdorferi BBK32 protein, including the evidence of particles’ transmission to BHK-21 target cells via caveolae/rafts endoc…

Hydrography and food distribution during a tidal cycle above a cold-water coral mound

2022

Cold-water corals (CWCs) are important ecosystem engineers in the deep sea that provide habitat for numerous species and can form large coral mounds. These mounds influence surrounding currents and induce distinct hy- drodynamic features, such as internal waves and episodic downwelling events that accelerate transport of organic matter towards the mounds, supplying the corals with food. To date, research on organic matter distribution at coral mounds has focussed either on seasonal timescales or has provided single point snapshots. Data on food distribution at the timescale of a diurnal tidal cycle is currently limited. Here, we integrate physical, biogeochemical, and biological data throug…

Consumo de drogas y Sida

2002

El consumo de drogas intravenoso (CDI), por compartir materiales no estériles de inyección ha estado muy asociado a la difusión de la infección por VIH y el desarrollo del SIDA desde el inicio de la epidemia, fundamentalmente en los países del sur de Europa y de forma especial en España y algunos años más tarde en Portugal. En la actualidad países del Este del continente presentan una afectación creciente, como por ejemplo Ucrania, y el CDI constituye una forma principal de transmisión en casi todas las zonas del mundo. La gran afectación de España muestra una evolución desigual entre las comunidades autónomas, ya que mientras algunas, como Madrid o el País Vasco, presentan altas tasas de S…

Ēģiptē viss citādi: ceļojuma novērojumi un iespaidi Ēģiptē 1937. gadā

1937

Aspectos pragmático-lingüísticos del discurso del turismo de aventura: estudio de un caso: estudio de un caso

2014

El objetivo de este trabajo es ofrecer una visión general del discurso turístico con respecto a sus principales características pragmático-lingüísticas y contrastarlo con un subsegmento turístico concreto. En este caso, nos aproximaremos al turismo de aventura, un tipo de turismo que está creciendo exponencialmente en los últimos años y que, por tanto, está ganando importancia en el sector turístico en España. Para ello, analizaremos un corpus de textos promocionales sobre este tipo de turismo a fin de ejemplificar dichas características e ilustrar a los traductores profesionales acerca de las posibles dificultades que puedan encontrar durante la traducción de este tipo de textos al español…

Effects of Long-Term Habitat Protection on Montane Small Mammals: Are Sorex araneus and S. minutus More Sensitive Than Previously Considered?

2022

Protection of natural areas by restricting human activities aims to preserve plant and animal populations and whole communities, ensuring the conservation of biological diversity and enhancement of ecosystem services. Therefore, it is expected that the longer the protection, the stronger the desired effects. We evaluated the responses of small mammals at the population and community levels under protection in the southern Carpathian Mountains. We surveyed small mammals for five years in sites with long- and short-term protection and non-protected. Besides protection status, we included elevation, habitat heterogeneity, and the month of survey as predictors in our models. As response variabl…

Synthesis and characterization of chalcogenide glasses from the system Ga-Ge-Sb-S and preparation of a single-mode fiber at 1.55 μm

2008

International audience; The aim of this work is to study different compositions in the Ga-Ge-Sb-S system for the definition of two compositions compatible with the elaboration of a single-mode fiber at the 1.55 μm telecom wavelength. The variations of the glass transition temperature (Tg), the dilatation coefficient (α) and the refractive index (n) have been studied for two glasses series: GaxGe25−xSb10S65 (series 1), Ga5Ge25−xSb10S60+x (series 2). This study has lead to the choice of the Ga4Ge21Sb10S65 composition as clad glass for the preparation of the single-mode fiber and Ga5Ge20Sb10S65 composition as the core. The discrepancies for the studied parameters between the core and clad comp…

Multiple scattering approach for two-electron resonant emission studied by angle-resolved coincidence spectroscopy.

2008

International audience; We have developed a generalization of the multiple-scattering formalism to deal with Auger-photoelectron coincidence spectroscopy APECS in the solid state. We have merged the exact atomic treatment of the angular correlations between the two electrons and the single-particle approach, on which the multiplescattering description of condensed matter relies. This allows the recovering, even in extended systems, of the entangled form of the electron-pair wave function characterizing the coincidence angular diffraction pattern. In the atomic limit our formalism correctly reproduces the cross section, as calculated within the statistical-tensors approach, usually employed …

Monte Carlo simulations of the solid-liquid transition in hard spheres and colloid-polymer mixtures

2010

Monte Carlo simulations at constant pressure are performed to study coexistence and interfacial properties of the liquid-solid transition in hard spheres and in colloid-polymer mixtures. The latter system is described as a one-component Asakura-Oosawa (AO) model where the polymer's degrees of freedom are incorporated via an attractive part in the effective potential for the colloid-colloid interactions. For the considered AO model, the polymer reservoir packing fraction is eta_p^r=0.1 and the colloid-polymer size ratio is q=sigma_p/\sigma=0.15 (with sigma_p and sigma the diameter of polymers and colloids, respectively). Inhomogeneous solid-liquid systems are prepared by placing the solid fc…

On the carrier of inertia

2018

A change in momentum will inevitably perturb the all-embracing vacuum, whose reaction we understand as inertia. Since the vacuum's physical properties relate to light, we propose that the vacuum embodies photons, but in pairs without net electromagnetic fields. In this physical form the free space houses energy in balance with the energy of matter in the whole Universe. Likewise, we reason that a local gravitational potential is the vacuum in a local balance with energy that is bound to a body. Since a body couples to the same vacuum universally and locally, we understand that inertial and gravitational masses are identical. By the same token, we infer that gravity and electromagnetism shar…