Results 121 to 130 of about 23,658,748 (362)

Observational constraint on generalized Chaplygin gas model [PDF]

open access: yes, 2009
We investigate observational constraints on the generalized Chaplygin gas (GCG) model as the unification of dark matter and dark energy from the latest observational data: the Union SNe Ia data, the observational Hubble data, the SDSS baryon acoustic ...
A. Dev   +69 more
core   +2 more sources

Recursion relations for tree-level amplitudes in the $SU(N)$ nonlinear sigma model [PDF]

open access: yes, 2012
It is well-known that the standard BCFW construction cannot be used for on-shell amplitudes in effective field theories due to bad behavior for large shifts. We show how to solve this problem in the case of the SU(N) non-linear sigma model, i.e.
K. Kampf, J. Novotný, J. Trnka
semanticscholar   +1 more source

STAT3 expression is reduced in cardiac pericytes in HFpEF and its loss reduces cellular adhesion and induces pericyte senescence

open access: yesFEBS Letters, EarlyView.
Heart failure with preserved ejection fraction (HFpEF) accounts for half of the heart failure cases. It is characterised by microvascular dysfunction, associated with reduced pericyte coverage and diminished STAT3 expression in pericytes. Loss of STAT3 impairs pericyte adhesion, promotes senescence, and activates a pro‐fibrotic gene program.
Leah Rebecca Vanicek   +15 more
wiley   +1 more source

Significant Factors of the Successful Lean Six-Sigma Implementation [PDF]

open access: yesInternational Journal of Mathematical, Engineering and Management Sciences, 2017
Based on an extensive literature review we have selected factors critical for Lean Six Sigma implementation success. Four variables were selected to be used as output variables measuring this project success: project on time completion, achievement of ...
Ljubisa Papic   +3 more
doaj   +1 more source

Bulk viscosity and the phase transition of the linear sigma model [PDF]

open access: yes, 2012
In this work we deal with the critical behavior of the bulk viscosity in the linear sigma model (LSM) as an example of a system which can be treated by using different techniques. Starting from the Boltzmann-Uehling-Uhlenbeck equation we compute the bulk
A. Dobado, J. Torres-Rincon
semanticscholar   +1 more source

Grassmannian Sigma - Models [PDF]

open access: yes, 2012
We study solutions of Grassmannian sigma-model both in finite-dimensional and infinite-dimensional settings. Mathematically, such solutions are described by harmonic maps from the Riemann sphere $\mathbb C\mathbb P^1$ or, more generally, compact Riemann surfaces to Grassmannians.
openaire   +3 more sources

Cytoplasmic delivery of antibodies through grafting a functional single complementarity‐determining region loop

open access: yesFEBS Letters, EarlyView.
We achieved cytoplasmic delivery of non‐cell‐penetrating IgGs by grafting a single functional complementarity‐determining region 1 (CDR1) from the light chain variable region (VL) of the cell‐internalizable 3D8 antibody. The engineered IgG acquired cell‐penetrating ability while maintaining antigen affinity, highlighting CDR1 grafting as a promising ...
Yerin Jeon   +5 more
wiley   +1 more source

Asymptotic behavior of solutions of a Fisher equation with free boundaries and nonlocal term

open access: yesElectronic Journal of Qualitative Theory of Differential Equations, 2019
We study the asymptotic behavior of solutions of a Fisher equation with free boundaries and the nonlocal term (an integral convolution in space). This problem can model the spreading of a biological or chemical species, where free boundaries represent ...
Jingjing Cai   +3 more
doaj   +1 more source

On Semantic Generalizations of the Bernays-Schönfinkel-Ramsey Class with Finite or Co-finite Spectra [PDF]

open access: yesarXiv, 2010
Motivated by model-theoretic properties of the BSR class, we present a family of semantic classes of FO formulae with finite or co-finite spectra over a relational vocabulary \Sigma. A class in this family is denoted EBS_\Sigma(\sigma), where \sigma is a subset of \Sigma. Formulae in EBS_\Sigma(\sigma) are preserved under substructures modulo a bounded
arxiv  

BRST symmetry of doubled membrane sigma-models

open access: yes, 2019
Courant sigma-models encode the geometric and non-geometric fluxes of compactified closed string theory as generalized Wess-Zumino terms and exhibit their relation to Courant algebroids.
Chatzistavrakidis, Athanasios   +4 more
core   +1 more source

Home - About - Disclaimer - Privacy