Results 91 to 100 of about 2,074,910 (325)

Continuum

, 2022
Category: Report Review, Sector: Energy, Issuer type: Corporate, Shading: N ...
openaire   +3 more sources

Atomoicity of mappings

International Journal of Mathematics and Mathematical Sciences, 1998
A mapping f:X→Y between continua X and Y is said to be atomic at a subcontinuumK of the domain X provided that f(K) is nondegenerate and K=f−1(f(K)).
Janusz J. Charatonik, Włodzimierz J. Charatonik   +1 more
doaj   +1 more source

VLT spectropolarimetry of two powerful radio galaxies at z~1.4: UV continuum, emission-line properties and the nature of high-redshift dust

, 2004
(Abridged) Deep VLT spectropolarimetric observations are presented for two powerful radio galaxies, 0850-206 and 1303+091. These observations cover the rest-frame wavelength range ~ 1450 - 3750 A.
A. Cimatti, Antonucci, Antonucci, Athreya, Barthel, Baum, Best, Best, Best, Best, Best, Best, Best, Binette, Bruzual, Bruzual, C. Solórzano-Iñarrea, Calzetti, Carilli, Carilli, Cimatti, Cimatti, Cimatti, Cimatti, Clark, Cohen, Cohen, Cohen, Dey, Dey, di Serego Alighieri, di Serego Alighieri, di Serego Alighieri, di Serego Alighieri, Dickson, Dopita, Dunlop, Fabian, H. J. A. Röttgering, Kapahi, Kishimoto, Maddox, Manzini, Mathis, McCarthy, McCarthy, McCarthy, McLure, Mellema, Osterbrock, P. N. Best, Rees, Röttgering, Schmidt, Seaton, Serkowski, Shaw, Solórzano-Iñarrea, Solórzano-Iñarrea, Stockman, Tadhunter, Tadhunter, Tadhunter, Telfer, Turnshek, Vernet, Zubko   +66 more
core   +1 more source

Real‐time assay of ribonucleotide reductase activity with a fluorescent RNA aptamer

FEBS Letters, EarlyView.
Ribonucleotide reductases (RNR) synthesize DNA building blocks de novo, making them crucial in DNA replication and drug targeting. FLARE introduces the first single‐tube real‐time coupled RNR assay, which enables isothermal tracking of RNR activity at nanomolar enzyme levels and allows the reconstruction of allosteric regulatory patterns and rapid ...
Jacopo De Capitani, Noemi E. Nwosu, Viktoria Gocke, Müge Kasanmascheff, Hannes Mutschler   +4 more
wiley   +1 more source

Bound states in the continuum in anisotropic plasmonic metasurfaces.

Nano letters (Print), 2020
The concept of optical bound states in the continuum (BICs) currently drives the field of dielectric resonant nanophotonics, providing an important physical mechanism for engineering high-quality (high-Q) optical resonances in high-index dielectric ...
Yao Liang, K. Koshelev, Fengchun Zhang, Han Lin, Shirong Lin, Jiayang Wu, B. Jia, Y. Kivshar   +7 more
semanticscholar   +1 more source

Dynamic properties of the dynamical system SFnm(X), SFnm(f))

Applied General Topology, 2020
Let X be a continuum and let n be a positive integer. We consider the hyperspaces Fn(X) and SFn(X). If m is an integer such that n > m ≥ 1, we consider the quotient space SFnm(X). For a given map f : X → X, we consider the induced maps Fn(f) : Fn(X) → Fn(
Franco Barragán, Alicia Santiago-Santos, Jesús F. Tenorio   +2 more
doaj   +1 more source

Magnetic excitation spectrum of dimerized antiferromagnetic chains

, 1996
Motivated by recent measurements on CuGeO$_3$ the spectrum of magnetic excitations of an antiferromagnetic $S=\frac{1}{2}$ chain with alternating coupling strength is investigated.
A. B. Harris, A. Luther, A. M. Tsvelik, F. D. M. Haldane, F. D. M. Haldane, G. Castilla, G. Müller, G. Spronken, Götz S. Uhrig, H. A. Bethe, H. Bergknoff, H. J. Schulz, H. J. Schulz, I. Affleck, J. C. Bonner, J. P. Pouget, J. Riera, K. Hirota, L. D. Faddeev, L. P. Regnault, M. C. Cross, M. C. Martin, M. Hase, M. Nishi, P. Fulde, P. Jordan, R. Chitra, S. Haas, Z. G. Soos   +28 more
core   +1 more source

Disordered but rhythmic—the role of intrinsic protein disorder in eukaryotic circadian timing

FEBS Letters, EarlyView.
Unstructured domains known as intrinsically disordered regions (IDRs) are present in nearly every part of the eukaryotic core circadian oscillator. IDRs enable many diverse inter‐ and intramolecular interactions that support clock function. IDR conformations are highly tunable by post‐translational modifications and environmental conditions, which ...
Emery T. Usher, Jacqueline F. Pelham
wiley   +1 more source

The Polynomial Pivots as Initial Values for a New Root-Finding Iterative Method

Journal of Applied Mathematics, 2015
A new iterative method for polynomial root-finding based on the development of two novel recursive functions is proposed. In addition, the concept of polynomial pivots associated with these functions is introduced.
Mario Lázaro, Pedro Martín, Antonio Agüero, Ignacio Ferrer   +3 more
doaj   +1 more source

Protein pyrophosphorylation by inositol pyrophosphates — detection, function, and regulation

FEBS Letters, EarlyView.
Protein pyrophosphorylation is an unusual signaling mechanism that was discovered two decades ago. It can be driven by inositol pyrophosphate messengers and influences various cellular processes. Herein, we summarize the research progress and challenges of this field, covering pathways found to be regulated by this posttranslational modification as ...
Sarah Lampe, Tanmay Kumar Mohanty, Rashna Bhandari, Dorothea Fiedler   +3 more
wiley   +1 more source