Results 111 to 120 of about 2,172 (231)

Coupled Clustering in Hierarchical Matrices for the Oseen Problem

International Journal for Numerical Methods in Fluids, Volume 98, Issue 6, Page 751-765, June 2026.
Fluid flow problems can be modelled by the Navier‐Stokes or, after linearization, by the Oseen equations. Their discretization results in linear systems in saddle point form which are typically very large and need to be solved iteratively. We propose a novel block structure for hierarchical matrices which is then used to build preconditioners for the ...
Jonas Grams, Sabine Le Borne
wiley   +1 more source

Access to diagnosis using liquid biopsy (ADLiB): Identifying lymphoma in a tuberculosis‐endemic setting

HemaSphere, Volume 10, Issue 6, June 2026.
Abstract In HIV‐ and tuberculosis (TB)‐endemic regions, lymphoma diagnosis is often delayed because symptoms can overlap with TB, and access to biopsy and specialized pathology is limited. To address this, we developed and internally evaluated the Access to Diagnosis using Liquid Biopsy (ADLiB) platform—a plasma cell‐free DNA (cfDNA)‐based approach ...
Katherine Antel, Nina Xiong, Mwanasha Merrill, Taiyang Chen, Lauren McGrath, Clara Droessler, Maxine van der Schyff, Meng‐Xuan Wu, Dylan Cheddie, Charlotte Slome, Liam McBride, Jonathan Day, Zainab Mohamed, Nazia Fakie, Nomonde Mbatani, Charlotte Shultz, Graeme Meintjes, Svitlana Tyekucheva, Elizabeth F. Cohen, Michael Y. Tolstorukov, Estelle Verburgh, Mark A. Murakami   +21 more
wiley   +1 more source

Benthic contributions to the chemical seascape: Insights from Mediterranean underwater caves

Limnology and Oceanography, Volume 71, Issue 6, June 2026.
Abstract Chemical mediation plays a major role in the functioning of marine ecosystems, yet most of the molecules sustaining species interactions remain largely unknown. As an initial step toward clarifying these processes, this study investigates how benthic biodiversity shapes the chemical composition of seawater, using underwater caves as model ...
Marie Derrien, Pierre Chevaldonné, Charlotte Simmler, Thierry Pérez   +3 more
wiley   +1 more source

An Efficient Iteration Method for Fixed-Point Approximation and Its Application to Fractional Volterra–Fredholm Integro–Differential Equations

Axioms
This paper proposes an efficient iteration method for fixed-point approximation in Banach spaces. The method accelerates convergence by incorporating a squared operator term within the iteration process.
Ekta Sharma, Shubham Kumar Mittal, Sunil Panday, Lorentz Jäntschi   +3 more
doaj   +1 more source

CHD4 Orchestrates Chromatin Remodeling to Activate the c‐Myc Signaling Pathway in Cancer Pathogenesis

MedComm – Oncology, Volume 5, Issue 2, June 2026.
CHD4 plays an essential role as an epigenetic regulator in the pathogenesis of multiple myeloma. The chromatin remodeling protein initially resolves G‐quadruplex (G4) secondary structures within the c‐Myc promoter region, thereby enhancing chromatin accessibility and promoting transcriptional activation.
Pinggang Ding, Yuhao Cao, Zihao Liu, Jingru Xie, Lingling Liu, Shanliang Sun, Xichao Yu, Zhendong Deng, Zhimin Fan, Ye Yang, Chunyan Gu   +10 more
wiley   +1 more source

Deep Picard Iteration for High-Dimensional Nonlinear PDEs

SIAM Journal on Scientific Computing
We present the Deep Picard Iteration (DPI) method, a new deep learning approach for solving high-dimensional partial differential equations (PDEs). The core innovation of DPI lies in its use of Picard iteration to reformulate the typically complex training objectives of neural network-based PDE solutions into much simpler, standard regression tasks ...
Jiequn Han, Wei Hu, Jihao Long, Yue Zhao 0043   +3 more
openaire   +2 more sources

An Augmented Lagrangian Preconditioner for Navier–Stokes Equations With Runge–Kutta in Time

Numerical Linear Algebra with Applications, Volume 33, Issue 3, June 2026.
ABSTRACT We consider an implicit Runge–Kutta method for the numerical time integration of the nonstationary incompressible Navier–Stokes equations. This yields a sequence of nonlinear problems to be solved for the stages of the Runge–Kutta method. The resulting nonlinear system of differential equations is discretized using a finite element method.
Santolo Leveque, Yunhui He, Maxim Olshanskii   +2 more
wiley   +1 more source

Fixed point problems of the Picard-Mann hybrid iterative process for continuous functions on an arbitrary interval

, 2013
In this paper, we consider the iteration method called 'Picard-Mann hybrid iterative process' for finding a fixed point of continuous functions on an arbitrary interval.
ÖZDEMİR, Murat, KARAHAN, İBRAHİM
core   +1 more source

Clinicopathological characteristics of patients with inoperable non‐small cell lung cancer harboring circulating NRF2 pathway mutations

The Journal of Pathology, Volume 269, Issue 2, Page 164-181, June 2026.
Abstract Lung cancer is the leading cause of global cancer‐related morbidity and mortality, with tobacco smoking as its strongest risk factor. Nuclear factor erythroid 2‐related factor 2 (NRF2) is a redox‐regulated transcription factor frequently dysregulated in non‐small cell lung cancer (NSCLC), leading to aggressive disease and resistance to therapy.
Jouni Härkönen, Satu Tiainen, Jouni Kujala, Linnea Muhonen, Ponnuswamy Mohanasundaram, Tuomas Tikkanen, Ina Pöhner, Tommi Patinen, Simone Adinolfi, Juha P Väyrynen, Päivi Auvinen, Arto Mannermaa, Petri Pölönen, Tuomas Rauramaa, Anna‐Liisa Levonen   +14 more
wiley   +1 more source

MICOS and MIMAS, multifunctional assemblies linking mitochondrial biogenesis, architecture, and function

Protein Science, Volume 35, Issue 6, June 2026.
Abstract Mitochondrial cristae architecture is central for optimal oxidative phosphorylation and a healthy mitochondrial physiology. The intricate architecture of the inner mitochondrial membrane relies on protein complexes that compartmentalize the membrane by imposing membrane curvature, forming membrane contact sites or membrane subdomains ...
Patrick Horten, Kuo Song, Nikolaus Pfanner, Heike Rampelt   +3 more
wiley   +1 more source