Results 121 to 130 of about 2,127,671 (356)

Optimizing the Chiral Properties of Lattice Fermion Actions [PDF]

arXiv, 1998
We describe a way to optimize the chiral behavior of Wilson-type lattice fermion actions by studying the low energy real eigenmodes of the Dirac operator. We find a candidate action, the clover action with fat links with a tuned clover term. We present a calculation of spectroscopy and matrix elements at Wilson gauge coupling $\beta=5.7$.
arxiv  

Bioengineering facets of the tumor microenvironment in 3D tumor models: insights into cellular, biophysical and biochemical interactions

FEBS Open Bio, EarlyView.
The tumor microenvironment is a dynamic, multifaceted complex system of interdependent cellular, biochemical, and biophysical components. Three‐dimensional in vitro models of the tumor microenvironment enable a better understanding of these interactions and their impact on cancer progression and therapeutic resistance.
Salma T. Rafik, Deniz Bakkalci, Alexander J. MacRobert, Umber Cheema   +3 more
wiley   +1 more source

Induced Rigid String Action From Fermions [PDF]

Lett.Math.Phys. 48 (1999) 243-250, 1998
From the Dirac action on the world sheet, an effective action is obtained by integrating over the 4-dimensional fermion fields pulled back to the world sheet. This action consists of the Nambu-Goto area term with right dimensionful constant in front, extrinsic curvature action and the topological Euler characteristic term.
arxiv  

Least Action Principle in Physics

, 2018
We learn physics by starting it from classical problem, where Newton's laws govern the classical physics. In high school or often in early physics in undergraduate, we still solve classic problem with newton's equation of motion. In this article, I will show that there's more alternative way to see classical problem instead seeing from Newton's law ...
openaire   +2 more sources

Analog gravity from field theory normal modes?

, 2001
We demonstrate that the emergence of a curved spacetime ``effective Lorentzian geometry'' is a common and generic result of linearizing a field theory around some non-trivial background. This investigation is motivated by considering the large number of `
, Alarcón S G, Barceló C, Barceló C, Barton G, Birrell N D, Bondi H, Carlos Barceló, Chapline G, Corley S, Corley S, Courant R, de Felice F, de Lorenci V A, DeWitt B S, Dittrich W, Donoghue J F, Donoghue J F, Donoghue J F, Donoghue J F, Donoghue J F, Feynman R P, Fischer U R, Fischer U R, Garay L J, Garay L J, Gies H, Gordon W, Hawking S W, Hawking S W, Hehl F W, Ito K, Itzykson C, Jacobson T, Jacobson T A, Jacobson T A, Kopnin N B, Kopnin N B, Leonhardt U, Leonhardt U, Leonhardt U, Liberati S, Liberati S, Liberati S, Matarrese S, Matarrese S, Matarrese S, Matt Visser, Mijic M B, Novello M, Novello M, Obukhov Y N, Obukhov Y N, Plebañski J, Regge T, Reznik B, Reznik B, Reznik B, Sakharov A, Scharnhorst K, Skrotskii G V, Stefano Liberati, Stephens G J, Unruh W G, Utiyama R, Visser M, Visser M, Visser M, Visser M, Visser M, Visser M, Volovik G E, Volovik G E, Volovik G E, Volovik G E, Volovik G E, Volovik G E, Volovik G E, Volovik G E Links between gravity, Weinberg S, Weinberg S   +80 more
core   +1 more source

Possible role of human ribonuclease dicer in the regulation of R loops

FEBS Open Bio, EarlyView.
R loops play an important role in regulating key cellular processes such as replication, transcription, centromere stabilization, or control of telomere length. However, the unscheduled accumulation of R loops can cause many diseases, including cancer, and neurodegenerative or inflammatory disorders. Interestingly, accumulating data indicate a possible
Klaudia Wojcik, Paulina Krzeminska, Anna Kurzynska‐Kokorniak   +2 more
wiley   +1 more source

Light meson physics and scale setting from a mixed action with Wilson twisted mass valence quarks [PDF]

, 2022
Gregorio Herdoíza, Andrea Bussone, Alessandro Conigli, Julien Frison, Carlos Pena, David Preti, José Ángel Romero, Alejandro Saez, Javier Ugarrio   +8 more
openalex   +1 more source

BV Yang-Mills as a Homotopy Chern-Simons via SFT

, 2009
We show explicitly how BV Yang-Mills action emerges as a homotopy generalization of Chern-Simons theory from the algebraic constructions arising from String Field Theory.Comment: LaTeX2e, 22 pages, minor revisions, typos corrected, references added ...
Zeitlin, Anton M.
core   +1 more source

Matrigel inhibits elongation and drives endoderm differentiation in aggregates of mouse embryonic stem cells

FEBS Open Bio, EarlyView.
Stem cell‐based embryo models (SCBEMs) are valuable to study early developmental milestones. Matrigel, a basement membrane matrix, is a critical substrate used in various SCBEM protocols, but its role in driving stem cell lineage commitment is not clearly defined.
Atoosa Amel, Rachel Brown, Alexa Rabeling, Mubeen Goolam   +3 more
wiley   +1 more source

The principle of least action and teleological explanation in physics [PDF]

, 2023
David Glick
openalex   +1 more source