Results 61 to 70 of about 49,381 (294)

Effects of Molecular Designs and Double‐Network Morphologies for Bioadhesive Semiconductors

open access: yesAdvanced Functional Materials, EarlyView.
This study establishes molecular‐to‐mesoscale design rules for bioadhesive semiconducting polymers (BASCs). It identifies how side‐chain length, double‐network formation, and film thickness modulate adhesion strength and electronic performance, providing insight into the rational design of intrinsically adhesive semiconductors for stable and efficient ...
Zhichang Liu   +8 more
wiley   +1 more source

The Contribution of a Community Event to Expert Work: An Activity Theoretical Perspective

open access: yesOutlines, 2004
Becoming an expert in any knowledge domain takes time and a great deal of learning, both theoretical and experiential.  The individual’s knowledge is often supplemented through knowledge exchanges with other experts.
Alanah Kazlauskas, Kathryn Crawford
doaj  

Cidades Novas [PDF]

open access: yes, 2020
Uma viagem ao universo das cidades novas, esse é o convite que essa obra vem oferecer aos leitores a fim de transitar, a partir da visão particular do autor, pelo contexto, pelos conceitos e pelos aspectos inerentes a esse tipo urbanístico, ainda pouco explorado pela literatura especializada brasileira.
openaire   +2 more sources

Fabrication of Pyridinic Nitrogen‐Functionalized Carbon Cloth for High‐Performance Iron‐Chromium Flow Batteries

open access: yesAdvanced Functional Materials, EarlyView.
The carbon cloth electrode with targeted pyridinic nitrogen doping, achieved via urea pyrolysis, effectively modulates the adsorption of Cr(II) species and enhances electron transfer, leading to significantly improved kinetics of the Cr(II)/Cr(III) reaction. The material demonstrates a high discharge capacity of 689.3 mAh and an energy efficiency of 72.
Jinfeng Yi   +9 more
wiley   +1 more source

On the Light Curves of Disk and Bulge Novae

open access: yesThe Astrophysical Journal
We examine the light curves of a sample of novae, classifying them into single-peaked and multiple-peaked morphologies. Using accurate distances from Gaia, we determine the spatial distribution of these novae by computing their heights, Z , above the ...
Asaf Cohen   +6 more
doaj   +1 more source

A systematic search for novae in M31 on a large set of digitized archival Schmidt plates

open access: yes, 2007
This paper reports on the detection of optical novae in our neighbour galaxy M31 based on digitized historical Tautenburg Schmidt plates. The accurate positions of the detected novae lead to a much larger database when searching for recurrent novae in ...
Henze, M., Meusinger, H., Pietsch, W.
core   +3 more sources

Nova AQL 1918: A Nude Old Nova [PDF]

open access: yesInternational Astronomical Union Colloquium, 1981
AbstractIUE observations at high and low resolution of Nova Aql 1918 show neither evidence of outflow nor the presence of nebular lines. This indicates that the shell ejected at the time of the outburst and surrounding the system for many years (Mustel and Boyarchuck, 1970) has by now disappeared.The high excitation spectrum presents rapid variations ...
P.L. Selvelli, A. Cassatella
openaire   +1 more source

Medical Fabrics with Non‐Antibiotic, Supramolecular Antimicrobial Coatings: A Preventive Approach to Combat Biofilm Formation and Bacterial Dissemination

open access: yesAdvanced Healthcare Materials, EarlyView.
The study presents an antibiotic‐free strategy using medical fabrics coated with supramolecular assemblies of polyarginine and hyaluronic acid. These coatings showed strong antimicrobial and anti‐biofilm activity in vitro and in vivo, achieving major bacterial load reductions, including against MRSA.
Adjara Diarrassouba   +18 more
wiley   +1 more source

Evolution of cataclysmic variables under different magnetic braking prescriptions

open access: yesAstronomy & Astrophysics
Context. The evolution of cataclysmic variables (CVs) – interacting binaries where a low-mass donor transfers matter to a white dwarf via an accretion disk – is critically controlled by magnetic braking (MB).
Zhou Bingyao   +5 more
doaj   +1 more source

Macrophage Membrane‐Cloaked, ROS‐Triggered Quercetin Nanocarriers Target Ovarian Lesions to Treat Polycystic Ovary Syndrome

open access: yesAdvanced Healthcare Materials, EarlyView.
The synthesis process of MM@PCD@QNPs and its potential mechanism for treating PCOS. (A) Assembly steps of MM@PCD@QNPs. (B) Synthesis and decomposition of MM@PCD@QNPs. (C) Potential therapeutic mechanisms of MM@PCD@QNPs for PCOS. PCD, PABP conjugated with DEX polymer; QUR, quercetin; CDI, N, N′‐carbonyldiimidazole; DEX, dextran; PABP, 4‐(hydroxymethyl ...
Wenzhu Li   +9 more
wiley   +1 more source

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