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Background and aims – While some plants achieve reproductive success through wind or deceptive pollination strategies, many animal-pollinated species depend on mutualistic interactions with pollinators, supported by fl...

We have reported the effect of Co and Ni doping on structural and optical properties of ZnO thin films prepared by RF reactive sputtering technique. The composite targets were formed by mixing and pressing of ZnO, Mn3O4,...

Background: The transition from arithmetic to algebra remains a persistent challenge in early mathematics education. While structural awareness is widely recognised as foundational to this shift, the developmental mecha...

Context. The star V426 Sge (HBHA 1704-05), originally classified as an emission-line object and a semi-regular variable, brightened at the beginning of August 2018, showing signatures of a symbiotic star outburst. Aims. ...

The main objectives of the study are to develop a generalized thermo-electromechanical model of a solid-state heat engine based on a Ni-Ti-Cu shape memory alloy for converting low-grade thermal energy (30-100 °C) into e...

In this study, we investigated the thermal stability of polymer networks, which plays an important role in the function of polymer network-liquid crystal composite films. A glass transition temperature of the polymer net...

The GaAs-based material system is well-known for hosting InAs quantum dots (QDs) with outstanding optical properties, typically emitting at a wavelength of around 900 nm. The insertion of a metamorphic buffer (MMB) can ...

Introduction Lung cancer (LC) is the leading cause of cancer-related mortality worldwide, primarily due to diagnosis at advanced stages. Although low-dose computed tomography (LDCT) screening reduces lung cancer mortalit...

"High-Impact Polystyrene (HIPS) is a heterogeneous material constituted by a rubber (PB) particles dispersed in a vitreous polystyrene (PS) matrix. Two typical morphologies are usually identified: ‘salami’ (larger r...

Las sociedades tradicionales presentan tasas de natalidad y mortalidad altas, lo contrario sucede en las modernas. El cambio demográfico temporal de una a otra condición se denomina transición demográfica (TD). La Ar...

High entropy alloys (HEAs) are barely 12 years old. The field has stimulated new ideas and has inspired the exploration of the vast composition space offered by multi-principal element alloys (MPEAs). Here we present a c...

"High-temperature renewable and industrial heat applications require efficient and compact solutions to address their inherent intermittency. Latent heat thermal energy storage is one such solution, acting as a buffer be...

Various heterogeneous catalytic reactions, when performed on a flux reactor (i.e. on open systems) under UHV conditions display complex spatiotemporal patterns. Specifically, TPR, Work Function (WF) measurements (both g...

En esta tesis se analizan experimental y teóricamente distintos aspectos relacionados con procesos de relajación hacia el equilibrio y transiciones de fase en copol´ımeros bloque confinados en la nanoescala. Median...

De acordo com a literatura, sabe-se que a talidomida apresenta formas polimórficas, refletindo em distintos hábitos cristalinos, tamanhos de partícula e velocidades de dissolução intrínseca. Levando-se em considera...

Recently, it has been proposed by Maldacena that large N limits of certain conformal field theories in d dimensions can be described in terms of supergravity (and string theory) on the product of d 4-1dimensional AdS spa...

The standard model of hot big-bang cosmology requires initial conditions which are problematic in two ways: (1) The early universe is assumed to be highly homogeneous, in spite of the fact that separated regions were cau...

A theory of superconductivity is presented, based on the fact that the interaction between electrons resulting from virtual exchange of phonons is attractive when the energy difference between the electrons states involv...

The concept of social change refers to alterations and modifications in the social behavior and the cultural values of determinated social systems and structures. In opposition to the so called social progress, social ch...

Fil: Rubio Vega, Blanca Aurora. Universidad Nacional Autónoma de México. Instituto de Investigaciones Sociales; México. El objetivo del artículo consiste en analizar el movimiento campesino que surge en América Lati...

Esta Tesis está dedicada al desarrollo de un modulador de ancho de pulso (PWM) para el control de inversores de potencia trifásicos. Los moduladores de PWM se utilizan ampliamente en la industria, para el control de mo...

This paper describes a rapid (2.0 min) and sensitive (LLOQ 5 ng/mL) analytical method for the quantitation of hydrochlorothiazide (HCTZ) in human plasma. The method is based on High-performance Liquid chromatography-tand...

A simple and sensitive liquid chromatography tandem mass spectrometry (LC-MS/MS) method was established and validated for the determination of prodrug of ginkgolide B (PGB) and its metabolite, ginkgolide B (GB) in rat pl...