Results 31 to 40 of about 4,652,142 (278)

Relation between Left Atrial Remodeling in Young Patients with Cryptogenic Stroke and Normal Inter-atrial Anatomy [PDF]

Journal of Stroke, 2015
Background and Purpose To investigate an association between left atrial (LA) structural and P wave dispersion (PWD) during sinus rhythm, and electrical remodeling in cryptogenic stroke (CS) patients. Methods Forty CS patients and 40 age- and sex-matched
Mustafa Gökhan Vural, Suha Cetin, Murat Yilmaz, Ramazan Akdemir, Huseyin Gunduz   +4 more
doaj   +1 more source

Salmonella lipopolysaccharide‐containing supported lipid bilayers as platforms to study bacteriophage interactions

FEBS Letters, EarlyView.
We present robust protocols for the preparation of supported lipid bilayers (SLBs) incorporating either Salmonella smooth LPS or outer membrane vesicles (OMVs). We use a combination of quartz crystal microbalance with dissipation (QCM‐D) and fluorescence microscopy to both characterize the SLBs of various compositions and to probe their interactions ...
Hudson P. Pace, Alyssa Borges, Charles Arnaud, Tove Karlsson, Nina K. Bröker, Stefanie Barbirz, Marta Bally   +6 more
wiley   +1 more source

Thermoelastic Wave Dispersion in Nonlocal Media

Alpha Journal of Engineering and Applied Sciences
This study investigates wave dispersion in a heat-conducting thermoelastic medium by integrating nonlocal elasticity with generalized thermoelastic theories.
Kishori Lal Verma
doaj   +1 more source

Traveling waves for a nonlocal dispersal SIR epidemic model with the mass action infection mechanism [PDF]

, 2021
This paper is concerned with a nonlocal dispersal susceptible–infected–recovered (SIR) epidemic model adopted with the mass action infection mechanism. We mainly study the existence and non-existence of traveling waves connecting the infection-free equilibrium state and the endemic equilibrium state.
Xin Wu, Zhaohai Ma
openaire   +1 more source

Ligand‐dependent transcriptional heterogeneity in cell cycle gene expression delays G1/S entry

FEBS Letters, EarlyView.
EGF and HRG induce distinct G1/S progression programs in ErbB2‐amplified BT474 breast cancer cells. Despite activating the potent ErbB2–ErbB3 heterodimer, HRG does not accelerate cell‐cycle entry. Instead, EGF promotes earlier restriction‐point passage via ERK–FOS signaling, whereas HRG activates the AKT–MYC axis, driving transcriptional heterogeneity ...
Ririn Rahmala Febri, Ayaka Nagasato‐Ichikawa, Keita Iida, Shuhei Kimura, Akira Imamoto, Mariko Okada   +5 more
wiley   +1 more source

Implementation of dispersion-free slow acoustic wave propagation and phase engineering with helical-structured metamaterials [PDF]

, 2016
The ability to slow down wave propagation in materials has attracted significant research interest. A successful solution will give rise to manageable enhanced wave-matter interaction, freewheeling phase engineering and spatial compression of wave ...
Zhang, Peng, Zhang, Jintao, Zhu, Xuefeng, Li, K, Zhang, P, Liu, Shengchun, Liu, S, Tian, Chao, Zhu, J, Tian, C, Li, Kun, Zhu, X, Zhu, Jie, Zhang, J   +13 more
core   +1 more source

Structural and biochemical analysis of a B12 superbinder

FEBS Letters, EarlyView.
BtuG proteins are vitamin B12 scavengers in Bacteroides thetaiotaomicron, a dominant human gut bacterium. We present crystal structures of three BtuG homologs bound to cobalamin and its precursor cobinamide, revealing picomolar binding affinities, among the highest known for any natural protein.
Jose M. Martinez Felices, Jacob J. Whittaker, Dirk J. Slotboom, Albert Guskov   +3 more
wiley   +1 more source

Effect of viscoelastic medium on wave propagation along protein microtubules

AIP Advances, 2019
An Orthotropic Kelvin-like model is developed here to study wave dispersion relation along microtubules when they are embedded in viscoelastic material.
Muhammad Safeer, M. Taj, Syed Solat Abbas   +2 more
doaj   +1 more source

Extracellular matrix remodeling and immune reprogramming drive residual tumor progression of liver cancer after incomplete microwave ablation

Molecular Oncology, EarlyView.
Incomplete microwave ablation (iMWA) of liver cancer triggers a biphasic progression in residual tumors. At Day 3, the microenvironment is characterized by acute inflammatory responses and extracellular matrix (ECM) remodeling. By Day 14, a profound shift occurs toward oncogenic signal transduction and immunosuppression, marked by macrophage ...
Yu Liu, Yubei He, Nikolaus Berndt, Michael Mülleder, Kathrin Textoris‐Taube, Jing Guo, Matthias Stechele, Justus Ramtke, Shraga Nahum Goldberg, Lynn Jeanette Savic   +9 more
wiley   +1 more source

Momentary giant T‐waves hint the genesis of the electrocardiographic T‐wave in human

Journal of Arrhythmia, 2018
T‐wave morphology changes are linked to dispersion of ventricular repolarization. I encountered an 80‐year‐old man on hemodialysis manifesting momentary giant T‐waves and QT prolongation on the 12‐lead electrocardiogram, soon after initiating mechanical ...
Tomiya Yasumasu
doaj   +1 more source