Results 1 to 10 of about 1,797,780 (305)

Fermion-induced quantum critical points [PDF]

open access: yesNature Communications, 2017
Quantum phase transitions are governed by Landau-Ginzburg theory and the exceptions are rare. Here, Li et al. propose a type of Landau-forbidden quantum critical points induced by gapless fermions in two-dimensional Dirac semimetals.
Zi-Xiang Li   +3 more
doaj   +3 more sources

Relative Critical Points [PDF]

open access: yesSymmetry, Integrability and Geometry: Methods and Applications, 2013
Relative equilibria of Lagrangian and Hamiltonian systems with symmetry are critical points of appropriate scalar functions parametrized by the Lie algebra (or its dual) of the symmetry group.
Debra Lewis
doaj   +4 more sources

Hazard Analysis Critical Control Points (HACCP) Principle 2: Determine Critical Control Points (CCPs)

open access: yesEDIS, 2007
FSHN07-04, a 5-page factsheet by Ronald H. Schmidt and Debby Newslow, explains the process of determining Critical Control Points in a HACCP system. Includes a helpful decision tree.
Ronald H. Schmidt, Debby L. Newslow
doaj   +6 more sources

Hazard Analysis Critical Control Points (HACCP) – Principle 3: Establish Critical Limits and Principle 4: Monitoring Critical Control Points (CCPs)

open access: yesEDIS, 2007
FSHN07-05, a 7-page fact sheet by Ronald H. Schmidt and Debby Newslow, takes readers through the process of establishing Critical Limits and monitoring Critical Control Points to ensure food safety in a HACCP system.
Ronald H. Schmidt, Debby L. Newslow
doaj   +6 more sources

CRASHES AS CRITICAL POINTS [PDF]

open access: yesInternational Journal of Theoretical and Applied Finance, 2000
We study a rational expectation model of bubbles and crashes. The model has two components: (1) our key assumption is that a crash may be caused by local self-reinforcing imitation between noise traders. If the tendency for noise traders to imitate their nearest neighbors increases up to a certain point called the "critical" point, all noise traders ...
Johansen, Anders   +2 more
openaire   +4 more sources

A note on the structure of the zeros of a polynomial and Sendov's conjecture

open access: yesCubo, 2023
In this note we prove a result that highlights an interesting connection between the structure of the zeros of a polynomial \(p(z)\) and Sendov's conjecture.
G. M. Sofi, W. M. Shah
doaj   +1 more source

Nonlinear elliptic equations involving the p-Laplacian with mixed Dirichlet-Neumann boundary conditions [PDF]

open access: yesOpuscula Mathematica, 2019
In this paper, a nonlinear differential problem involving the \(p\)-Laplacian operator with mixed boundary conditions is investigated. In particular, the existence of three non-zero solutions is established by requiring suitable behavior on the ...
Gabriele Bonanno   +2 more
doaj   +1 more source

Dilution in pressurized enclosures – critical points [PDF]

open access: yesMATEC Web of Conferences, 2022
The risk of explosion can occur in all activities involving flammable substances which, when mixed with air, can form an explosive atmosphere. Explosion protection is intended to prevent the ignition of explosive atmospheres. Pressurization, as a type of
Pupazan Gabriela, Grecea Dănuț
doaj   +1 more source

Critical points and the presence of pathogenic bacteria in iced beverage processing lines

open access: yesJournal of Infection in Developing Countries, 2017
Introduction: Ice can be contaminated by pathogenic bacteria. This study aimed to identify critical points in iced beverage production and distribution lines to examine the presence of pathogenic bacteria in a beverage and its processing environment, as
Halim Nababan   +8 more
doaj   +1 more source

Risk-based Approach in Obtaining and Analysing the Characteristics of Baikal Skullcap Suspension Cultures

open access: yesРазработка и регистрация лекарственных средств, 2022
Introduction. The use of biologically active compounds of Baikal skullcap (Scutellaria baicalensis Georgi) becomes especially important under pandemic conditions. The plant's value becomes the cause of overexploitation of the skullcap subterranean parts,
A. A. Shmarova   +2 more
doaj   +1 more source

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