Results 51 to 60 of about 13,259,157 (240)

Microfluidic Passive Flow Regulatory Device with an Integrated Check Valve for Enhanced Flow Control

Micromachines, 2019
A passive microvalve has appealing advantages in cost-effective and miniaturized microfluidic applications. In this work, we present a passive flow regulatory device for enhanced flow control in a microfluidic environment.
Xinjie Zhang, Zhenyu Zhang
doaj   +1 more source

An outer membrane vesicle‐associated two‐track model for enterotoxigenic Bacteroides fragilis oncogenesis

Molecular Oncology, EarlyView.
Enterotoxigenic Bacteroides fragilis is a gut bacterium linked to bowel cancer. We propose that its toxin acts along two routes: at the cell surface, cutting the adhesion protein E‐cadherin and triggering inflammation; and inside the cell, delivered by bacterial vesicles, switching on NOD1 and cancer stem cell programs.
Kangchan Choi, Sang‐Hyeon Yoo, Ki‐Jong Rhee   +2 more
wiley   +1 more source

Passive Control Measures of Wind Flow around Tall Buildings

Buildings
The growth and diversification of tall buildings demands higher performance standards that encompass serviceability and resilience. In this respect, the control of air flow around tall buildings poses challenges to minimising the energy that could induce
Mario A. Aguirre-López, Filiberto Hueyotl-Zahuantitla, Pedro Martínez-Vázquez   +2 more
doaj   +1 more source

Single‐molecule DNA flow‐stretch assays for high‐throughput DNA–protein interaction studies

FEBS Open Bio, EarlyView.
We describe an optimised single‐molecule DNA flow‐stretch assay that visualises DNA–protein interactions in real time. Linear DNA fragments are tethered to a surface and stretched by buffer flow for fluorescence imaging. Using λ and φX174 DNA, this protocol enhances reproducibility and accessibility, providing a versatile approach for studying diverse ...
Ayush Kumar Ganguli, Mohammad Nour Alsamsam, Ugnė Bagdonaitė, Van Truc Vu, Chun‐Jen Huang, Polina Kuzhir, Mindaugas Zaremba, Aurimas Kopūstas, Marijonas Tutkus   +8 more
wiley   +1 more source

Importin 7 mediates the nuclear import of HIV‐1 integrase via a specific interacting interface

FEBS Open Bio, EarlyView.
HIV‐1 integrase enables viral DNA integration into the host genome. By binding to the core domain of the host protein Importin 7 via its C‐terminal domain, the integrase is transported across the nuclear membrane into the nucleus, where integration of the viral genome into host DNA takes place. This translocation is a critical step for subsequent viral
Juana Bana, Avigail Yariv, Tal Oppenheim, Hadar Amartely, Dana Reichmann, Oded Livnah   +5 more
wiley   +1 more source

An improved passive vortex generator model for flow separation control

, 2010
Modeling arrays of passive vortex generators (VGs) pairs located in the fully turbulent boundary layer of a two-dimensional flat plate, generating streamwise counterrotating vortex structures is investigated. Usually, a sound computational fluid dynamics
Johansson, Arne V.,, Arne Johansson, Wallin, Stefan,, Florian von Stillfried, Von Stillfried, Florian,, Stefan Wallin   +5 more
core   +1 more source

Experimental Aerodynamics of a Small Fixed-Wing Unmanned Aerial Vehicle Coated with Bio-Inspired Microfibers Under Static and Dynamic Stall

Aerospace
A passive flow control technique in the form of microfiber coatings with a diverging pillar cross-section area was applied to the wing suction surface of a small tailless unmanned aerial vehicle (UAV). The coatings are inspired from ‘gecko feet’ surfaces,
Dioser Santos, Guilherme D. Fernandes, Ali Doosttalab, Victor Maldonado   +3 more
doaj   +1 more source

Effects of Active and Passive Control Techniques on Mach 1.5 Cavity Flow Dynamics

International Journal of Aerospace Engineering, 2017
Supersonic flow over cavities has been of interest since 1960s because cavities represent the bomb bays of aircraft. The flow is transient, turbulent, and complicated. Pressure fluctuations inside the cavity can impede successful weapon release.
Selin Aradag, Kubra Asena Gelisli, Elcin Ceren Yaldir   +2 more
doaj   +1 more source

Dose‐dependent hepatotoxicity of hydrogen peroxide in HepG2 cells and its modulation by CYP450 induction

FEBS Open Bio, EarlyView.
NMR metabolomics revealed concentration‐dependent metabolic perturbations in HepG2 cells exposed to H2O2. Rifampicin pretreatment enhanced metabolic competence, attenuated toxin‐induced alterations and produced metabolite profiles more consistent with human liver physiology, supporting the use of CYP450‐induced HepG2 models for improved in vitro ...
Maren Jinks, Garth L. Maker, Emily C. Davies, Berin A. Boughton, Samantha Lodge   +4 more
wiley   +1 more source

Suppression of Fluid Forces Acting on Two Square Prisms in Tandem Arrangement by Passive Control. [PDF]

The aim of the present study is to suppress the fluid forces acting on two square prisms in tandem arrangement, which is found in many cases in structures on land and in the ocean, by exerting passive control on an approaching flow using a small flat ...
坂本, 弘志, Alam, Md.Mahbub, 高井, 和紀, Takai, kazunori, 森谷, 優   +4 more
core   +1 more source