Results 41 to 50 of about 159,943 (267)

INFORMATION MODELING AND SYSTEM DYNAMICS INTERPRETATION OF CONVENTIONAL ENGINES

open access: yesAdvanced Engineering Research, 2010
An original improvement of modern information models of conventional engine is proposed. Within the model all internal as well as external processes related to engine are integrated to a general system.
Evgeny N. LADOSHA   +2 more
doaj  

ARBTools: A Tricubic Spline Interpolator for Three-Dimensional Scalar or Vector Fields

open access: yesJournal of Open Research Software, 2019
ARBTools is a Python library containing a Lekien-Marsden type tricubic spline method for interpolating three-dimensional scalar or vector fields presented as a set of discrete data points on a regular cuboid grid.
Paul Walker, Ulrich Krohn, David Carty
doaj   +1 more source

EDNRB‐dependent endothelin signaling reduces proliferation and promotes proneural‐to‐mesenchymal transition in gliomas

open access: yesMolecular Oncology, EarlyView.
Glioma cells mainly express the endothelin receptor EDNRB, while EDNRA is restricted to a perivascular tumor subpopulation. Endothelin signaling reduces glioma cell proliferation while promoting migration and a proneural‐to‐mesenchymal transition associated with poor prognosis. This pathway activates Ca2+, K+, ERK, and STAT3 signalings and is regulated
Donovan Pineau   +36 more
wiley   +1 more source

Optimal bandwidth selection for recursive Gumbel kernel density estimators

open access: yesDependence Modeling, 2019
In this paper, we propose a data driven bandwidth selection of the recursive Gumbel kernel estimators of a probability density function based on a stochastic approximation algorithm.
Slaoui Yousri
doaj   +1 more source

CollocInfer: Collocation Inference in Differential Equation Models

open access: yesJournal of Statistical Software, 2016
This monograph details the implementation and use of the CollocInfer package in R for smoothing-based estimation of continuous-time nonlinear dynamic systems.
Giles Hooker, James O. Ramsay, Luo Xiao
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

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  

Time Series Smoothing Improving Forecasting

open access: yesApplied Computer Systems, 2021
Both statistical and neural network methods may fail in forecasting time series even operating on a great amount of data. It is an open question of which amount fits best to make sufficiently accurate forecasts on it. This implies that the length or time
Romanuke Vadim
doaj   +1 more source

Using a Vegetation Index as a Proxy for Reliability in Surface Reflectance Time Series Reconstruction (RTSR)

open access: yesRemote Sensing, 2023
Time series of optical remote sensing data are instrumental for monitoring vegetation dynamics, but are hampered by missing or noisy observations due to varying atmospheric conditions.
Pieter Kempeneers   +2 more
doaj   +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

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