Results 101 to 110 of about 1,358,906 (294)

Preconditioners for state constrained optimal control problems\ud with Moreau-Yosida penalty function tube [PDF]

open access: yes, 2010
Optimal control problems with partial differential equations play an important role in many applications. The inclusion of bound constraints for the state poses a significant challenge for optimization methods.
Stoll, M., Wathen, A. J.
core  

Sparse recovery via differential inclusions

open access: yesApplied and Computational Harmonic Analysis, 2016
In this paper, we recover sparse signals from their noisy linear measurements by solving nonlinear differential inclusions, which is based on the notion of inverse scale space (ISS) developed in applied mathematics. Our goal here is to bring this idea to address a challenging problem in statistics, \emph{i.e.} finding the oracle estimator which is ...
Stanley Osher   +4 more
openaire   +4 more sources

Dietary Protein Intake and Peritoneal Protein Losses in Peritoneal Dialysis Patients

open access: yesTherapeutic Apheresis and Dialysis, EarlyView.
ABSTRACT Introduction Peritoneal dialysis (PD) patients lose protein in their waste dialysate, potentially increasing their risk for malnutrition. We wished to determine whether there was any association between losses and dietary protein intake (DPI). Methods DPI was assessed from 24‐h dietary recall using Nutrics software.
Haalah Shaaker, Andrew Davenport
wiley   +1 more source

Effects of the Fluid Replacement Method During Online Hemodiafiltration on the Solute Removal Performance and Biocompatibility Using the Asymmetric Cellulose Triacetate Membrane

open access: yesTherapeutic Apheresis and Dialysis, EarlyView.
ABSTRACT Introduction Pre‐dilution online hemodiafiltration (Pre‐HDF) is predominantly used in Japan, whereas post‐dilution online HDF (Post‐HDF) is more common in Europe. An asymmetric cellulose triacetate (ATA) membrane may improve biocompatibility.
Kenji Sakurai   +4 more
wiley   +1 more source

On Viable Solutions for Uncertain Systems [PDF]

open access: yes, 1986
One of the problems that arises in the theory of evolution and control under uncertainty is to specify the set of all the solutions to a differential inclusion that also satisfy a preassigned restriction on the state space variables (the "viability ...
Filippova, T.F., Kurzhanski, A.B.
core  

Fetal Brain Tumor Harboring a Unique ROCK1::BRAF Fusion

open access: yes
Pediatric Blood &Cancer, EarlyView.
Marllon Cindra Sant'Ana   +8 more
wiley   +1 more source

Infection Control Practices for Vascular Access Management in Hemodialysis: Results From a Nationwide Survey of Japanese National University Hospitals

open access: yesTherapeutic Apheresis and Dialysis, EarlyView.
ABSTRACT Introduction Bloodstream infections due to repeated vascular access (VA) puncture and circuit connections remain major concerns in hemodialysis. Therefore, we examined current practices for glove, disinfectant, and personal protective equipment (PPE) use according to VA type in national university hospitals in Japan.
Aiko Yamada   +6 more
wiley   +1 more source

Second-order differential inclusions with almost convex right-hand sides

open access: yesElectronic Journal of Qualitative Theory of Differential Equations, 2011
We study the existence of solutions of a boundary second order differential inclusion under conditions that are strictly weaker than the usual assumption of convexity on the values of the right-hand side.
D. Azzam-Laouir, D. Affane
doaj   +1 more source

Revealing the structure of land plant photosystem II: the journey from negative‐stain EM to cryo‐EM

open access: yesFEBS Letters, EarlyView.
Advances in cryo‐EM have revealed the detailed structure of Photosystem II, a key protein complex driving photosynthesis. This review traces the journey from early low‐resolution images to high‐resolution models, highlighting how these discoveries deepen our understanding of light harvesting and energy conversion in plants.
Roman Kouřil
wiley   +1 more source

Differential inclusion for the evolution p(x)-Laplacian with memory

open access: yesElectronic Journal of Differential Equations, 2019
We consider the evolution differential inclusion for a nonlocal operator that involves p(x)-Laplacian, $$ u_t-\Delta_{p(x)} u-\int_0^{t}g(t-s)\Delta_{p(x)} u(x,s)\,ds\in \mathbf{F}(u) \quad \text{in } Q_T=\Omega\times (0,T), $$ where $\Omega\subset
Stanislav Antontsev   +3 more
doaj  

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