Results 81 to 90 of about 1,946,431 (327)

A color representation of two-dimensional discontinuous seismic structures [PDF]

open access: yesGeofísica Internacional, 2002
We present a computational procedure to represent with colors two-dimensional piecewise continuous functions. Seismic wave velocities are used as examples.
J. Acosta, J. Frez
doaj  

An Improved Material Point Method with Aggregated and Smoothed Bernstein Functions

open access: yesMathematics, 2023
Nodal shape functions and their gradients are vital in transferring physical information within the material point method (MPM). Their continuity is related to numerical stability and accuracy, and their support domain size affects computational ...
Zheng Zhu   +5 more
doaj   +1 more source

Engineered extracellular vesicles enriched with the miR‐214/199a cluster enhance the efficacy of chemotherapy in ovarian cancer

open access: yesMolecular Oncology, EarlyView.
Loss of the miR‐214/199a cluster is associated with recurrence in ovarian cancer. Engineered small extracellular vesicles (m214‐sEVs) elevate miR‐214‐3p/miR‐199a‐5p in tumor cells, suppress β‐catenin, TLR4, and YKT6 signaling, reprogram tumor‐derived sEV cargo, reduce chemoresistance and migration, and enhance carboplatin efficacy and survival in ...
Weida Wang   +12 more
wiley   +1 more source

An allometric smoothing function to describe the relation between otolith and somatic growth over the lifespan of walleye pollock (Theragra chalcogramma) [PDF]

open access: yes, 2007
We propose a new equation to describe the relation between otolith length (OL) and somatic length (fork length [FL]) of fish for the entire lifespan of the fish.
Ikeda, Hisatoshi   +4 more
core   +1 more source

Separating the scales in a compressible interstellar medium

open access: yes, 2018
We apply Gaussian smoothing to obtain mean density, velocity, magnetic and energy density fields in simulations of the interstellar medium based on three-dimensional magnetohydrodynamic equations in a shearing box $1\times1\times2 \, \rm{kpc}$ in size ...
Evirgen, Cetin Can   +5 more
core   +1 more source

CD47 promotes mitogen‐activated protein kinase and epithelial‐to‐mesenchymal transition molecular programs to drive prometastatic phenotypes in non‐small cell lung cancer

open access: yesMolecular Oncology, EarlyView.
Beyond its role in immune evasion, this study identified that CD47 drives tumor‐intrinsic signaling in non‐small cell lung cancer (NSCLC). Transcriptomic profiling and functional studies revealed that CD47 regulates cell adhesion, migration, and metastasis through an ERK–EMT signaling axis.
Asa P.Y. Lau   +8 more
wiley   +1 more source

Handling Overlapping Asymmetric Data Sets—A Twice Penalized P-Spline Approach

open access: yesMathematics
Aims: Overlapping asymmetric data sets are where a large cohort of observations have a small amount of information recorded, and within this group there exists a smaller cohort which have extensive further information available.
Matthew McTeer   +3 more
doaj   +1 more source

The work of Professor Andrzej Lasota on asymptotic stability and recent progress [PDF]

open access: yesOpuscula Mathematica, 2008
The paper is devoted to Professor Andrzej Lasota's contribution to the ergodic theory of stochastic operators. We have selected some of his important papers and shown their influence on the evolution of this topic. We emphasize the role A.
Wojciech Bartoszek
doaj  

A method for reducing sampling jitter in digital control systems [PDF]

open access: yes, 1969
Digital phase lock loop system is designed by smoothing the proportional control with a low pass filter. This method does not significantly affect the loop dynamics when the smoothing filter bandwidth is wide compared to loop ...
Anderson, T. O.   +2 more
core   +1 more source

Towards Smooth Particle Methods Without Smoothing [PDF]

open access: yesJournal of Scientific Computing, 2014
In this article we present a new class of particle methods which aim at being accurate in the uniform norm with a minimal amount of smoothing. The crux of our approach is to compute local polynomial expansions of the characteristic flow to transport the particle shapes with improved accuracy.
openaire   +3 more sources

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