Results 61 to 70 of about 2,497 (152)

Comorbidities and HIV‐related factors associated with mental health symptoms and unhealthy substance use among older adults living with HIV in low‐ and middle‐income countries: a cross‐sectional study

Journal of the International AIDS Society, Volume 28, Issue 3, March 2025.
Abstract Introduction People with HIV (PWH) are vulnerable to mental health and substance use disorders (MSDs), but the extent to which these are associated with other non‐communicable diseases in ageing PWH populations remains poorly documented. We assessed comorbidities associated with symptoms of MSD among PWH ≥40 years in the Sentinel Research ...
Jeremy L. Ross, Dhanushi Rupasinghe, Thida Chanyachukul, Brenda Crabtree Ramírez, Gad Murenzi, Edith Kwobah, Fiona Mureithi, Albert Minga, Ivan Marbaniang, Hugo Perazzo, Angela Parcesepe, Suzanne Goodrich, Cleophas Chimbetete, Ephrem Mensah, Fernanda Maruri, Dung Thi Hoai Nguyen, Alvaro López‐Iñiguez, Kathryn Lancaster, Helen Byakwaga, Mpho Tlali, Marie K. Plaisy, Smita Nimkar, Rodrigo Moreira, Kathryn Anastos, Aggrey Semeere, Gilles Wandeler, Antoine Jaquet, Annette Sohn, the Sentinel Research Network of the International epidemiology Databases to Evaluate AIDS   +28 more
wiley   +1 more source

Semi‐implicit Lagrangian Voronoi approximation for the incompressible Navier–Stokes equations

International Journal for Numerical Methods in Fluids, Volume 97, Issue 1, Page 88-115, January 2025.
We introduce semi‐implicit Lagrangian Voronoi approximation (SILVA), a novel numerical method for the solution of the incompressible Euler and Navier–Stokes equations, which combines semi‐implicit time marching with time‐dependent Voronoi tessellations with topology changes.
Ondřej Kincl, Ilya Peshkov, Walter Boscheri   +2 more
wiley   +1 more source

Hybrid incompressible SPH–machine learning approach for simulating natural convection in a porous intricate domain

Case Studies in Thermal Engineering
This study explores the double-diffusive convection of nano-enhanced phase change material (NEPCM) inside a intricate-shaped cavity partially filled with porous media, integrating Incompressible Smoothed Particle Hydrodynamics (ISPH) with an Artificial ...
Noura Alsedais, Abdelraheem M. Aly
doaj   +1 more source

Learning Correlations Between Computational Scale and Performance for Accurate Numerical Modeling: Application Case of Dam‐Break Flood Processes

Advances in Civil Engineering, Volume 2025, Issue 1, 2025.
Scientists aim to accurately simulate and characterize complex natural phenomena, thus revealing the underlying natural laws or physical mechanisms governing these phenomena. Conventional physical experiments require significant time and cost, and numerical methods offer an alternative solution. However, modeling complex phenomena such as fluid flow in
Xiaoyu Qi, Gang Mei, Mimi Luo, Nengxiong Xu, H. Naderpour   +4 more
wiley   +1 more source

Study of IspH, a Key Enzyme in the Methylerythritol Phosphate Pathway Using Fluoro-Substituted Substrate Analogues

, 2016
IspH, a [4Fe-4S]-cluster-containing enzyme, catalyzes the reductive dehydroxylation of 4-hydroxy-3-methyl-butenyl diphosphate (HMBPP) to isopentenyl diphosphate (IPP) and dimethylallyl diphosphate (DMAPP) in the methylerythritol phosphate pathway ...
Hung-wen Liu (1279131), Pinghua Liu (1316268), Youli Xiao (1409170), Wei-chen Chang (1530808)   +3 more
core   +1 more source

Double-diffusive natural convection in an enclosure filled with nanofluid using ISPH method

Alexandria Engineering Journal, 2016
The double-diffusive natural convection in an enclosure filled with nanofluid is studied using ISPH method. The model used for the nanofluid incorporates the effects of Brownian motion and thermophoresis.
Abdelraheem M. Aly, Zehba A.S. Raizah
doaj   +1 more source

Capabilities and limitations of smoothed particle hydrodynamics for the simulation of two‐phase flow instabilities

Proceedings in Applied Mathematics and Mechanics, Volume 24, Issue 4, December 2024.
Abstract Smoothed particle hydrodynamics (SPH) is a mesh‐free, Lagrangian particle‐based method that is able to simulate multiphase flows in an economical manner. However, its ability to capture the flow regimes and regime transitions in two phase (liquid‐gas) internal flows, such as pipe or channel flows is not yet generally established.
Rishindra Vallem, Marten Klein, Heiko Schmidt   +2 more
wiley   +1 more source

"IspH - RPS1 ""Rosetta Stone"" Protein"

, 2016
IspH is a 4-Hydroxy-3-methyl-but-2-enyl pyrophosphate reductase enzyme. It is the last essential reducing enzyme in the methyerithritol pathway which is parallel to the mevalonate pathway that exists in humans.
Haleem, Armaan
core  

A smoothed particle hydrodynamics solver for hydroelastic interactions between fluid and structure [PDF]

AIP Advances
There is still a lack of accurate and stable numerical solvers for Fluid–Structure Interaction (FSI) problems involving violent fluid flows and large deformations of structures.
Takafumi Gotoh, Abbas Khayyer, Dongfang Liang, Hitoshi Gotoh   +3 more
doaj   +1 more source

Uncoupled thermoelasticity problem for a finite rectangular composite

ZAMM - Journal of Applied Mathematics and Mechanics / Zeitschrift für Angewandte Mathematik und Mechanik, Volume 104, Issue 12, December 2024.
Abstract The stretching of a composite specimen taking into account temperature influence is modelled in terms of tensile stress applied at the opposite boundaries of the elastic rectangular domain. Two other boundaries are supposed to be fixed, it allows to formulate the stated problem as a boundary value problem.
Huang Sheng, Natalya Vaysfeld, Zinaida Zhuravlova   +2 more
wiley   +1 more source