Articles with "sigma" as a keyword



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Application of Sigma metrics in the quality control strategies of immunology and protein analytes.

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Published in 2021 at "Journal of clinical laboratory analysis"

DOI: 10.1002/jcla.24041

Abstract: BACKGROUND Six Sigma (6σ) is an efficient laboratory management method. We aimed to analyze the performance of immunology and protein analytes in terms of Six Sigma. METHODS Assays were evaluated for these 10 immunology and… read more here.

Keywords: immunology protein; protein analytes; sigma; quality control ... See more keywords

Sigma-1 Receptor Antagonists: A New Class of Neuromodulatory Analgesics.

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Published in 2017 at "Advances in experimental medicine and biology"

DOI: 10.1007/978-3-319-50174-1_9

Abstract: The sigma-1 receptor is a unique ligand-operated chaperone present in key areas for pain control, in both the peripheral and central nervous system. Sigma-1 receptors interact with a variety of protein targets to modify their… read more here.

Keywords: sigma; sigma receptors; sigma antagonists; sigma receptor ... See more keywords

Nicolai maps for supersymmetric sigma models

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Published in 2024 at "Journal of High Energy Physics"

DOI: 10.1007/jhep02(2025)065

Abstract: Supersymmetric field theories can be characterized by their Nicolai map, which is a nonlinear and nonlocal field transformation to their free-field limit. The systematic construction of such maps has recently been outlined for actions with… read more here.

Keywords: field; nicolai maps; maps supersymmetric; sigma ... See more keywords
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Integrable deformed T1,1 sigma models from 4D Chern-Simons theory

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Published in 2021 at "Journal of High Energy Physics"

DOI: 10.1007/jhep09(2021)037

Abstract: Abstract Recently, a variety of deformed T1,1 manifolds, with which 2D non-linear sigma models (NLSMs) are classically integrable, have been presented by Arutyunov, Bassi and Lacroix (ABL) [46]. We refer to the NLSMs with the… read more here.

Keywords: chern simons; integrable deformed; sigma; model ... See more keywords
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Beta functions for the duality-invariant sigma model

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Published in 2021 at "Journal of High Energy Physics"

DOI: 10.1007/jhep10(2021)192

Abstract: Abstract The O(d, d) invariant worldsheet theory for bosonic string theory with d abelian isometries is employed to compute the beta functions and Weyl anomaly at one-loop. We show that vanishing of the Weyl anomaly… read more here.

Keywords: duality invariant; invariant sigma; weyl anomaly; functions duality ... See more keywords

On the image, characterization, and automatic continuity of $$\varvec{(\sigma }, \varvec{\tau }$$(σ,τ)-derivations

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Published in 2017 at "Archiv der Mathematik"

DOI: 10.1007/s00013-017-1082-8

Abstract: The first main theorem of this paper asserts that any $$(\sigma , \tau )$$(σ,τ)-derivation d, under certain conditions, either is a $$\sigma $$σ-derivation or is a scalar multiple of ($$\sigma - \tau $$σ-τ), i.e. $$d… read more here.

Keywords: tau; varvec; sigma tau; sigma ... See more keywords
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The Integral Cosine Addition and Sine Subtraction Laws

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Published in 2018 at "Results in Mathematics"

DOI: 10.1007/s00025-018-0858-x

Abstract: In the present paper we characterize the solutions of each of the integral functional equations $$\begin{aligned}&\int _{G}g(xyt)d\mu (t) =g(x)g(y)-f(x)f(y),\quad x,y\in G, \\&\int _{G}f(x\sigma (y)t)d\mu (t) =f(x)g(y)-f(y)g(x),\quad x,y\in G, \end{aligned}$$∫Gg(xyt)dμ(t)=g(x)g(y)-f(x)f(y),x,y∈G,∫Gf(xσ(y)t)dμ(t)=f(x)g(y)-f(y)g(x),x,y∈G,where G is a locally compact Hausdorff… read more here.

Keywords: addition sine; cosine addition; sine subtraction; integral cosine ... See more keywords

Validation of the implementation of phased-array heating systems in Plan2Heat

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Published in 2024 at "Strahlentherapie Und Onkologie"

DOI: 10.1007/s00066-024-02264-0

Abstract: Hyperthermia treatment planning can be supportive to ensure treatment quality, provided reliable prediction of the heating characteristics (i.e., focus size and effects of phase-amplitude and frequency steering) of the device concerned is possible. This study… read more here.

Keywords: treatment; sar; sigma; heating systems ... See more keywords

On the heterogeneous distortion inequality

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Published in 2021 at "Mathematische Annalen"

DOI: 10.1007/s00208-021-02315-2

Abstract: We study Sobolev mappings $f \in W_{\mathrm{loc}}^{1,n} (\mathbb{R}^n, \mathbb{R}^n)$, $n \ge 2$, that satisfy the heterogeneous distortion inequality \[\left|Df(x)\right|^n \leq K J_f(x) + \sigma^n(x) \left|f(x)\right|^n\] for almost every $x \in \mathbb{R}^n$. Here $K \in [1,… read more here.

Keywords: heterogeneous distortion; sigma; distortion inequality; mathbb ... See more keywords

Sigma-1 receptor ligand PD144418 and sigma-2 receptor ligand YUN-252 attenuate the stimulant effects of methamphetamine in mice

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Published in 2019 at "Psychopharmacology"

DOI: 10.1007/s00213-019-05268-2

Abstract: RationalePrevious research indicates that the selective sigma-1 receptor ligand PD144418 and the selective sigma-2 ligands YUN-252 can inhibit cocaine-induced hyperactivity. The effects of these ligands on other stimulants, such as methamphetamine, have not been reported.ObjectivesThe… read more here.

Keywords: methamphetamine; receptor ligand; sigma; yun 252 ... See more keywords

The Localised Bounded $$L^2$$L2-Curvature Theorem

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Published in 2019 at "Communications in Mathematical Physics"

DOI: 10.1007/s00220-019-03458-9

Abstract: In this paper, we prove a localised version of the bounded $$L^2$$L2-curvature theorem of (Klainerman et al. Invent Math 202(1):91–216, 2015). More precisely, we consider initial data for the Einstein vacuum equations posed on a… read more here.

Keywords: bounded curvature; localised bounded; sigma; curvature theorem ... See more keywords