Results 21 to 30 of about 3,675 (259)

‘Corona’ versus ‘coronary’ [PDF]

open access: yesEuropean Heart Journal, 2020
nd
Ferrari, Roberto   +2 more
openaire   +3 more sources

Femtosecond laser filament guided negative coronas

open access: yesAIP Advances, 2020
We report on the experimental investigation of femtosecond laser filament guided negative coronas. When the coupling between the filament and negative corona was weak, the side fluorescence spectral analysis confirmed the existence of impact ionization ...
Tie-Jun Wang   +9 more
doaj   +1 more source

Spectra of coronae

open access: yesLinear Algebra and its Applications, 2011
We introduce a new invariant, the coronal of a graph, and use it to compute the spectrum of the corona $G\circ H$ of two graphs $G$ and $H$. In particular, we show that this spectrum is completely determined by the spectra of $G$ and $H$ and the coronal of $H$. Previous work has computed the spectrum of a corona only in the case that $H$ is regular. We
McLeman, Cam, McNicholas, Erin
openaire   +3 more sources

Adaptación marginal de coronas de disilicato de litio obtenidas mediante técnicas de escaneo (CAD/CAM): análisis in vitro con microscopía confocal

open access: yesOdontología Sanmarquina, 2021
Objetivo. El objetivo de este estudio fue evaluar la adaptación marginal de coronas de disilicato de litio obtenidas mediante técnicas de escaneo (CAD/CAM), antes y después de la cristalización, a través de análisis in vitro con microscopía confocal (MC).
Bruna Neves de Freitas   +7 more
doaj   +1 more source

Corona Triage [PDF]

open access: yes, 2020
Verfassungsblog: On Matters ...
openaire   +1 more source

A Pragmatic Perspective of the Antibacterial Properties of Metal-Based Nanoparticles

open access: yesNanomaterials, 2021
A consideration of the antibacterial efficacy of metal-based nanoparticles, from the point of view of their physicochemical properties, suggests that such efficacy arises from the protein coronas that form around them, and that the contents of the ...
Edward Sacher, Arthur Yelon
doaj   +1 more source

Stellar coronae [PDF]

open access: yesSymposium - International Astronomical Union, 1997
The last two decades have seen the emergence of a new field in stellar astrophysics, the study of stellar coronae mostly in X-ray domain. With the advent of soft X-ray imagery X-ray emission was found from many thousands of solar-like stars. I will summarize the most important findings of X-ray surveys of late type stars and put the results in the ...
openaire   +1 more source

On a generalization of the corona problem [PDF]

open access: yesInternational Journal of Mathematics and Mathematical Sciences, 1986
Let g, f1, …, fm ∈ H∞(Δ). We provide conditions on f1, …, fm in order that |g(z)| ≤ |f1(z)| + …+|fm(z)|, for all z in Δ, imply that g, or g2, belong to the ideal generated by f1, …, fm in H∞.
GENTILI, GRAZIANO, D. STRUPPA
openaire   +5 more sources

Evidence of a largely staminal origin for the Jaltomata calliantha (Solanaceae) floral corona

open access: yesEvoDevo, 2019
Background Understanding the evolution of novel features requires homology assessments at different levels of biological organization. In flowering plants, floral coronas that play various roles in plant–pollinator interactions have evolved multiple ...
Jamie L. Kostyun   +2 more
doaj   +1 more source

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