Results 121 to 130 of about 143,775 (300)

Origin of radio polarization in pulsar polar caps

Astronomy & Astrophysics
Context. It is crucial to know the polarization properties of coherent radio waves that escape from pulsar polar caps to calculate the radiative transfer through the magnetosphere and to predict observable radio properties. Aims.
Benáček Jan, Jessner Axel, Pohl Martin, Rievajová Tatiana, Oswald Lucy S.   +4 more
doaj   +1 more source

Molecular characterization of covRS mutations in M1UK Streptococcus pyogenes

FEBS Open Bio, EarlyView.
Group A Streptococcus (GAS) acquires covRS mutations driving a hypervirulent bacterial state, frequently associated with invasive disease‐like necrotizing fasciitis. We demonstrate that the newly emerged M1UK GAS lineage can also acquire these mutations.
Jarrad Pritchard, Emma‐Jayne Proctor, Jiawa Wang, Nikolas P. Johnston, Andrew Hayes, Georgia McCorkell, Haibo Yu, Jai Tree, Mark R. Davies, Mark J. Walker, Ronald Sluyter, Stephan Brouwer, Martina L. Sanderson‐Smith   +12 more
wiley   +1 more source

Modeling the Martian bow shock: A novel approach using magnetic field distributions in Martian and upstream space

Astronomy & Astrophysics
Context. Traditional Martian bow shock (BS) modeling methods, which identify BS crossings as temporal midpoints between upstream and downstream boundaries and fit them with conic sections, introduce a systematic overestimation of altitude.
Huang Hui, Ye Shengyi
doaj   +1 more source

Effects of IGFBP4 deficiency on human preadipocyte proliferation and differentiation through the IGF1R/AKT pathway

FEBS Open Bio, EarlyView.
IGFBP4 knockdown (KD) impairs preadipocyte proliferation and is associated with IGF1R protein downregulation and attenuated AKT phosphorylation. The mechanisms by which IGFBP4 KD influences the IGF1R/AKT signaling pathway involve newly synthesized proteins and lysosomal degradation pathways. Created in BioRender.
Yujia Guo, Sandy Richter, Christoph Bach, Wieland Kiess, Anna Kirstein, Diana Le Duc, Antje Garten   +6 more
wiley   +1 more source

Analysis of wave processes using beam-driven Langmuir/𝒵-mode waveforms generated in particle-in-cell simulations

Astronomy & Astrophysics
During Type III solar radio bursts, beam-driven Langmuir/𝒵-mode (upper-hybrid) wave turbulence is converted into electromagnetic emissions at the fundamental plasma frequency and its harmonics, through a chain of various linear and nonlinear wave ...
Polanco-Rodríguez F. J., Krafft C., Savoini P.   +2 more
doaj   +1 more source

From energy provision to protein synthesis: Tunnelling nanotubes as mediators of intercellular metabolic cooperation in cancer

FEBS Open Bio, EarlyView.
The cytoskeleton‐mediated transport of mitochondria via tunnelling nanotubes restores respiration, increases ATP production, rescues cells from apoptosis, activates the AKT/mTOR signalling pathway, promotes cell migration and invasiveness, contributes to cancer progression and treatment resistance.
Stanislava Martínková, Jan Trnka
wiley   +1 more source

Complex plasmas: Interaction potentials and non-Hamiltonian dynamics [PDF]

, 2007
This thesis is a cumulative dissertation that consists of three papers. The first paper addresses the issue of screening of a charged dust particle suspended in the plasma-wall transition layer of a plasma discharge.
Kompaneets, Roman, Kompaneets, R.
core   +1 more source

Impact of heat flux and suprathermal electrons on steady-state solar wind modelling with Icarus

Astronomy & Astrophysics
Context. Suprathermal electrons significantly contribute to the heat flux in the solar wind (SW), making their treatment essential for improved SW modelling.
Vinogradov A., Lazar M., Poedts S., Fichtner H., Baratashvili T., Dakeyo J.-B., Scherer K., Wijsen N.   +7 more
doaj   +1 more source

A new flow chip in combination with multiphoton microscopy as a protocol for longitudinal 3D imaging of tissue calcification under shear stress

FEBS Open Bio, EarlyView.
Miniaturized flow chip platform enabling continuous perfusion and longitudinal multiphoton 3D imaging of vascular smooth muscle cell constructs under physiological flow. Brightfield imaging guides region selection, while CellTracker Green and mRuby‐labeled fetuin‐A visualize cells and mineral deposition, respectively. Magnesium supplementation markedly
Vytautas Kučikas, Aaron D. Morgan, Ignas Čiurlionis, Christian Böhm, Stefan Jockenhövel, Willi Jahnen‐Dechent, Marc A. M. J. van Zandvoort   +6 more
wiley   +1 more source

Distinctive plume formation in atmospheric pressure Ar and He plasmas in microwave frequency band and suitability for biomedical applications

, 2018
Distinctive discharge formation in atmospheric Ar and He plasmas was observed in the microwave frequency band using coaxial transmission line resonators. Ar plasmas formed a plasma plume whereas He formed only confined plasmas. As the frequency increased
Kim, HY, Kwon, HC, LEE, JAE KOO, Kang, SK, Won, IH, H. Wk. Lee, Sim, JY   +6 more
core   +1 more source