Results 71 to 80 of about 3,188,796 (338)

Observation of a New Mechanism of Spontaneous Generation of Magnetic Flux in a Superconductor

, 2004
We report the discovery of a new mechanism of spontaneous generation of a magnetic flux in a superconductor cooled through $T_c$. The sign of the spontaneous flux changes randomly from one cooldown to the next, and follows a Gaussian distribution.
Ariel Maniv, Bernd-Uwe Runge, Björn Biehler, Boris Shapiro, Emil Polturak, Gad Koren, Irena Shapiro, Paul Leiderer, T. W. B. Kibble, V. L. Ginzburg, V. L. Ginzburg, Yuri Bliokh   +11 more
core   +1 more source

Dendritic cells steering antigen and leukocyte traffic in lymph nodes

FEBS 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, Agnieszka Katarzyna Maciola, Tania Baccega, Giulia Pasqual   +3 more
wiley   +1 more source

On a Neumann Problem with an Intrinsic Operator

Axioms
This paper investigates the existence and location of solutions for a Neumann problem driven by a (p,q) Laplacian operator and with a reaction term that depends not only on the solution and its gradient but also incorporates an intrinsic operator, which ...
Dumitru Motreanu, Angela Sciammetta
doaj   +1 more source

Diffusion MRI with free gradient waveforms on a high-performance gradient system: Probing restriction and exchange in the human brain

NeuroImage, 2023
The dependence of the diffusion MRI signal on the diffusion time carries signatures of restricted diffusion and exchange. Here we seek to highlight these signatures in the human brain by performing experiments using free gradient waveforms designed to be
Arthur Chakwizira, Ante Zhu, Thomas Foo, Carl-Fredrik Westin, Filip Szczepankiewicz, Markus Nilsson   +5 more
doaj  

Limit theorems for gradient-dependent elastoplastic geomaterials

International Journal of Solids and Structures, 2007
AbstractIn this paper, the limit theorems proposed by Drucker and co-workers are reformulated to address a class of gradient-dependent elastoplastic geomaterials. The gradient effects are accounted for by incorporating strain gradients and their conjugate higher-order stresses into the constitutive descriptions. Gradient-dependent equilibrium equations
Zhao, Jidong, Sheng, Daichao, Sloan, Scott W., Krabbenhoft, Kristian   +3 more
openaire   +3 more sources

Making tau amyloid models in vitro: a crucial and underestimated challenge

FEBS Letters, EarlyView.
This review highlights the challenges of producing in vitro amyloid assemblies of the tau protein. We review how accurately the existing protocols mimic tau deposits found in the brain of patients affected with tauopathies. We discuss the important properties that should be considered when forming amyloids and the benchmarks that should be used to ...
Julien Broc, Clara Piersson, Yann Fichou
wiley   +1 more source

Surface-to-volume ratio with oscillating gradients

, 2011
Restrictions to diffusion result in the dispersion of the bulk diffusion coefficient. We derive the exact universal high-frequency behavior of the diffusion coefficient in terms of the surface-to-volume ratio of the restrictions.
Kiselev, Valerij G., Novikov, Dmitry S.
core   +1 more source

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

FEBS 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, Izadora Volpato Rossi, Marcel I. Ramirez   +2 more
wiley   +1 more source

Macroscopic limit of the Becker-D\"oring equation via gradient flows

, 2018
This work considers gradient structures for the Becker-D\"oring equation and its macroscopic limits. The result of Niethammer [17] is extended to prove the convergence not only for solutions of the Becker-D\"oring equation towards the Lifshitz-Slyozov ...
Schlichting, André
core   +1 more source

Semilocal and hybrid meta-generalized gradient approximations based on the understanding of the kinetic-energy-density dependence. [PDF]

Journal of Chemical Physics, 2013
We present a global hybrid meta-generalized gradient approximation (meta-GGA) with three empirical parameters, as well as its underlying semilocal meta-GGA and a meta-GGA with only one empirical parameter.
Jianwei Sun, R. Haunschild, B. Xiao, Ireneusz W. Bulik, G. Scuseria, J. Perdew   +5 more
semanticscholar   +1 more source