Results 21 to 30 of about 24,963,787 (378)

The Fucik spectrum and critical groups [PDF]

open access: yesProceedings of the American Mathematical Society, 2001
We compute critical groups of zero for variational functionals arising from semilinear elliptic boundary value problems with jumping nonlinearities when the asymptotic limits of the nonlinearity fall in certain parts of Type (II) regions between curves of the Fucik spectrum.
Perera, Kanishka, Schechter, Martin
openaire   +2 more sources

Non-Critical Confining Strings and the Renormalization Group [PDF]

open access: yes, 1999
String vacua for non critical strings satisfying the requirements of Zig-Zag invariance are constructed. The Liouville mode is shown to play the r\^ole of scale in the Renormalization Group operation.
Alvarez   +7 more
core   +2 more sources

Critical assessment of methods of protein structure prediction (CASP)—Round XIV

open access: yesProteins: Structure, Function, and Bioinformatics, 2021
Critical assessment of structure prediction (CASP) is a community experiment to advance methods of computing three‐dimensional protein structure from amino acid sequence. Core components are rigorous blind testing of methods and evaluation of the results
A. Kryshtafovych   +4 more
semanticscholar   +1 more source

Effect of tocilizumab on clinical outcomes at 15 days in patients with severe or critical coronavirus disease 2019: randomised controlled trial

open access: yesBritish medical journal, 2021
Objective To determine whether tocilizumab improves clinical outcomes for patients with severe or critical coronavirus disease 2019 (covid-19). Design Randomised, open label trial. Setting Nine hospitals in Brazil, 8 May to 17 July 2020.
V. Veiga   +35 more
semanticscholar   +1 more source

Dynamics near QCD critical point by dynamic renormalization group [PDF]

open access: yes, 2011
We work out the basic analysis of dynamics near QCD critical point (CP) by dynamic renormalization group (RG). In addition to the RG analysis by coarse graining, we construct the nonlinear Langevin equation as a basic equation for the critical dynamics ...
Minami, Yuki
core   +2 more sources

A Remark on Critical Groups [PDF]

open access: yesJournal of the Australian Mathematical Society, 1969
Problem 24 of Hanna Neumann's book [3] reads: Does there exist, for a given integer n > 0, a Cross variety that is generated by its k-generator groups and contains (k+n)-generator critical groups? In such a variety, is every critical group that needs more than k generators a factor of a k-generator critical group, or at least of the free group of ...
openaire   +1 more source

Small clique number graphs with three trivial critical ideals

open access: yesSpecial Matrices, 2018
The critical ideals of a graph are the determinantal ideals of the generalized Laplacian matrix associated to a graph. Previously, they have been used in the understanding and characterizing of the graphs with critical group with few invariant factors ...
Alfaro Carlos A., Valencia Carlos E.
doaj   +1 more source

Cryptanalysing the critical group: efficiently solving Biggs's discrete logarithm problem

open access: yesJournal of Mathematical Cryptology, 2009
Biggs has recently proposed the critical group of a certain class of finite graphs as a platform group for cryptosystems relying on the difficulty of the discrete log problem. The paper uses techniques from the theory of Picard groups on finite graphs to
Blackburn Simon R.
doaj   +1 more source

Protection of the public in a large-scale radiation accident: mitigation of negative social consequences of protective actions. Part 1. Interpretation of dose characteristics of emergency

open access: yesРадиационная гигиена, 2019
The protective actions which were carried out with the purpose to reduce public exposure to radiation derived from the accidents at Chernobyl and Fukushima-1 nuclear power plants have caused negative consequences of social – psychological both social ...
Yu. O. Konstantinov
doaj   +1 more source

A clinically relevant sheep model of orthotopic heart transplantation 24 h after donor brainstem death

open access: yesIntensive Care Medicine Experimental, 2021
Background Heart transplantation (HTx) from brainstem dead (BSD) donors is the gold-standard therapy for severe/end-stage cardiac disease, but is limited by a global donor heart shortage.
Louise E. See Hoe   +42 more
doaj   +1 more source

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