Results 31 to 40 of about 248,294 (326)

The Influence of Longitudinal Space Charge Fields on the Modulation Process of Coherent Electron Cooling

open access: yes, 2014
The initial modulation in the scheme for Coherent electron Cooling (CeC) rests on the screening of the ion charge by electrons. However, in a CeC system with a bunched electron beam, inevitably, a long-range longitudinal space charge force is introduced.
Blaskiewicz, Michael   +2 more
core   +2 more sources

Tuning the Dielectric Properties of Individual Clay Nanosheets by Interlayer Composition: Toward Nano‐Electret Materials

open access: yesAdvanced Functional Materials, EarlyView.
The dielectric properties of clays are studied on the level of individual monolayers and functional double stacks. The material breakdown characteristics and charge storage performance are analyzed. For illustration, a defined charge pattern representing a cuneiform character is produced, written into a microscopic clay tile, referencing the origins of
Sebastian Gödrich   +6 more
wiley   +1 more source

Local Chemical Gradients in a Mammalian Cortex Measured In Vivo With a Silicon Nanodialysis Mass Spectrometry Platform

open access: yesAngewandte Chemie, EarlyView.
Fluorescence image of the coronal slice of mouse brain where multiple neurochemicals have been measured in vivo with a nanodialysis platform coupled to CE‐MS to reveal strong millimeter‐scale spatial chemical gradients. Formation and maintenance of such local chemical compartments in the otherwise diffusion‐homogeneous cortex indicates strong ...
Weihua Shi   +5 more
wiley   +2 more sources

A Recomendação Geral N.º 24 da Convenção para a Eliminação de todas as Formas de Discriminação contra a Mulher amplia ou constrói uma interpretação aos Estados Partes?

open access: yesCadernos Ibero-Americanos de Direito Sanitário
Objetivos: analisar se a Recomendação Geral n.º 24, sobre saúde da mulher, amplia ou constrói interpretações para os Estados Partes da Convenção para a Eliminação de todas as Formas de Discriminação contra a Mulher.
Andressa Felix Lisboa   +2 more
doaj   +1 more source

The Interdependence between Rainfall and Temperature: Copula Analyses

open access: yesThe Scientific World Journal, 2012
Rainfall and temperature are important climatic inputs for agricultural production, especially in the context of climate change. However, accurate analysis and simulation of the joint distribution of rainfall and temperature are difficult due to possible
Rong-Gang Cong, Mark Brady
doaj   +1 more source

Furan‐Substituted Phosphine‐Oxide as an Efficient Interfacial Modifier for Wide‐Bandgap Perovskite Solar Cells

open access: yesAdvanced Functional Materials, EarlyView.
We report phosphine‐oxide interlayers for wide‐bandgap perovskite solar cells, in which tuned P = O Lewis basicity enables selective passivation of buried NiOx/perovskite interfaces and introduces interfacial dipoles that strengthen the built‐in field.
JeeHee Hong   +6 more
wiley   +1 more source

Multivalent Glycopolymer Design Unlocks Antimicrobial Activity of 2‐Deoxyglucose

open access: yesAngewandte Chemie, EarlyView.
New approaches to combat antimicrobial‐resistant pathogens are needed. Here, scaffolding a nonmetabolizable sugar (2DG) on a polymer backbone is shown to significantly improve its antimicrobial activity. ABSTRACT With the increasing prevalence of multidrug‐resistant (MDR) pathogens, last‐line therapeutics such as cyclic peptides are insufficient ...
Sungjin Jeon   +4 more
wiley   +2 more sources

A crónica como prática narrativa da cidade: entre conservação e acção

open access: yesForma Breve, 2010
Neste ensaio, estudam-se as relações entre a crónica a vida urbana.
Ana Filipa Prata
doaj   +1 more source

Small Extracellular Vesicles from Neural Cells: Physiological and Pathological Roles, and Potential in Neurodegenerative Therapy

open access: yesAdvanced Healthcare Materials, EarlyView.
Neural cell–derived small extracellular vesicles (sEVs) are emerging as pivotal mediators in neurodegenerative diseases, exerting both pathogenic and therapeutic functions. This review synthesizes current evidence on how sEVs from distinct neural cell types regulate neurodegeneration, neuroprotection, biomarker discovery, and targeted drug delivery ...
Muhammad Waqas Salim   +4 more
wiley   +1 more source

The Status of Latin in Portugal: Resilience and Resistance

open access: yesThe Journal of Classics Teaching, 2018
In our present times Languages and Humanities seem to be neglected in lieu of Science and Technology courses, and both teachers and parents redirect students towards courses that are said to make them more employable.
Susana Marta Pereira
doaj   +1 more source

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