Results 51 to 60 of about 2,127,671 (356)

Interacting Two-Time Physics Field Theory With a BRST Gauge Invariant Action

open access: yes, 2006
We construct a field theoretic version of 2T-physics including interactions in an action formalism. The approach is a BRST formulation based on the underlying Sp(2,R)gauge symmetry, and shares some similarities with the approach used to construct string ...
I. Bars   +5 more
core   +4 more sources

Dendritic cells steering antigen and leukocyte traffic in lymph nodes

open access: yesFEBS Letters, EarlyView.
Dendritic cells are key players in the activation of T cells and their commitment to effector function. In this In a Nutshell Review, we will discuss how dendritic cells guide the trafficking of antigen and leukocytes in the lymph node, thus influencing T‐cell activation processes. Dendritic cells (DCs) play a central role in initiating and shaping the
Enrico Dotta   +3 more
wiley   +1 more source

A non-abelian analogue of DBI from $T \overline{T}$

open access: yesSciPost Physics, 2020
The Dirac action describes the physics of the Nambu-Goldstone scalars found on branes. The Born-Infeld action defines a non-linear theory of electrodynamics. The combined Dirac-Born-Infeld (DBI) action describes the leading interactions supported on a
T. Daniel Brennan, Christian Ferko, Savdeep Sethi
doaj   +1 more source

Physicalism and the determination of action [PDF]

open access: yes, 2011
There is no single version of physicalism. There is no single argument for physicalism. There is, accordingly, no standard answer concerning the implications of physicalism for the causation of human action by mental states. This chapter begins by describing a preferred version of physicalism and its implications about the connection between subjects ...
openaire   +1 more source

Exploring the action landscape with trial world-lines

open access: yes, 2010
The Hamilton action principle, also known as the principle of least action, and Lagrange equations are an integral part of advanced undergraduate mechanics.
  +14 more
core   +1 more source

The cytoskeletal control of B cell receptor and integrin signaling in normal B cells and chronic lymphocytic leukemia

open access: yesFEBS Letters, EarlyView.
In lymphoid organs, antigen recognition and B cell receptor signaling rely on integrins and the cytoskeleton. Integrins act as mechanoreceptors, couple B cell receptor activation to cytoskeletal remodeling, and support immune synapse formation as well as antigen extraction.
Abhishek Pethe, Tanja Nicole Hartmann
wiley   +1 more source

Girls in the physics classroom: a review of the research on the participation of girls in physics [PDF]

open access: yes, 2006
A review of research spanning the past 15 years into the participation of girls in physics at secondary school level. The review was commissioned by the Institute of Physics in order to inform policy setting agendas for the Institute and to reveal ...
Murphy, Patricia, Whitelegg, Elizabeth
core  

New Einstein-Hilbert-type Action and Superon-Graviton Model(SGM) of Nature

open access: yes, 2004
A nonlinear supersymmetric(NLSUSY) Einstein-Hilbert(EH)-type new action for unity of nature is obtained by performing the Einstein gravity analogue geomtrical arguments in high symmetry spacetime inspired by NLSUSY.
Baaklini N. S.   +7 more
core   +1 more source

Interaction vesicles as emerging mediators of host‐pathogen molecular crosstalk and their implications for infection dynamics

open access: yesFEBS Letters, EarlyView.
Interaction extracellular vesicles (iEVs) are hybrid vesicles formed through host‐pathogen communication. They facilitate immune evasion, transfer pathogens' molecules, increase host cell uptake, and enhance virulence. This Perspective article illustrates the multifunctional roles of iEVs and highlights their emerging relevance in infection dynamics ...
Bruna Sabatke   +2 more
wiley   +1 more source

Laser physics: Quantum controversy in action [PDF]

open access: yesReviews of Modern Physics, 1999
Laser physics is a subject whose roots go back to the very source of quantum thought, namely, blackbody radiation and the Planck distribution. But the road to the first maser device showing radiation amplification by stimulated emission was rocky indeed. Likewise, the struggle to produce the first laser was hampered by much false “wisdom.” Furthermore,
Charles H. Townes   +4 more
openaire   +2 more sources

Home - About - Disclaimer - Privacy