Results 101 to 110 of about 7,163,355 (354)

Nitric oxide‐forming nitrite reductases in the anaerobic ammonium oxidizer Kuenenia stuttgartiensis

FEBS Open Bio, EarlyView.
Anammox bacteria remove fixed nitrogen from their environment via anaerobic ammonium oxidation (anammox) with nitrite as electron acceptor and dinitrogen gas as product. The first anammox step is the conversion of nitrite to nitric oxide by nitrite reductase.
Femke J. Vermeir, Lotte W. Nijman, Robert S. Jansen, Laura van Niftrik, Wouter Versantvoort   +4 more
wiley   +1 more source

Critical behavior of rumor propagation on random networks of cliques

Papers in Physics
We disclose a critical phenomenon induced by structural properties of the contact pattern in a stylized model of rumor propagation over a population of agents.
Lucas A. Sobehart, Damián H. Zanette
doaj   +1 more source

Type II critical phenomena of neutron star collapse

, 2007
We investigate spherically-symmetric, general relativistic systems of collapsing perfect fluid distributions. We consider neutron star models that are driven to collapse by the addition of an initially "in-going" velocity profile to the nominally static ...
C. Gundlach, F. Eulderink, J. A. Font, J. M. Martí, M. W. Choptuik, Matthew W. Choptuik, P. L. Roe, R. Arnowitt, R. C. Tolman, R. J. LeVeque, R. J. LeVeque, R. M. Wald, Scott C. Noble   +12 more
core   +1 more source

Polydatin ameliorates ovalbumin‐induced asthma in a rat model through NCOA4‐mediated ferroautophagy and ferroptosis pathway

FEBS Open Bio, EarlyView.
In this research, a rat model of asthma was created using OVA, and polydatin served as an intervention. By inhibiting ferroautophagy mediated by NCOA4 and averting ferroptosis, polydatin has been demonstrated to reduce asthma. This work presents new ideas for investigating the mechanism of polydatin's ability to alleviate asthma, in addition to ...
Wei Li, Yuwei Tang, Wenkang Liu, Fang Fang, Jiepeng Wang, Chaoyi Fang   +5 more
wiley   +1 more source

Local vs. Long-Range Infection in Unidimensional Epidemics

Frontiers in Physics, 2019
We study the effects of local and distance interactions in the unidimensional contact process (CP). In the model, each site of a lattice is occupied by an individual, which can be healthy or infected.
Priscila R. Silveira, Marcelo M. de Oliveira, Sidiney G. Alves   +2 more
doaj   +1 more source

Critical phenomena at perfect and non-perfect surfaces

, 1997
The effect of imperfections on surface critical properties is studied for Ising models with nearest-neighbour ferromagnetic couplings on simple cubic lattices.
Pleimling, M., Selke, W.
core   +2 more sources

Blocking the voltage‐gated sodium channel hNav1.5 as a novel pH‐dependent mechanism of action for tamoxifen

FEBS Open Bio, EarlyView.
Patch‐clamp recordings revealed that tamoxifen inhibits voltage‐gated sodium channels, especially under acidic conditions, both common in metastatic cancer cells. These effects may explain certain antitumor properties of tamoxifen, highlighting a novel mechanism of action beyond its known endocrine effects.
Karl Josef Föhr, Michael Fauler, Thomas Zimmer, Bettina Jungwirth, Hubert Schrezenmeier, David Alexander Christian Messerer   +5 more
wiley   +1 more source

Critical Exponents and Universality for Fractal Time Processes above the Upper Critical Dimensionality

Fractal and Fractional
We study the critical behaviors of systems undergoing fractal time processes above the upper critical dimension. We derive a set of novel critical exponents, irrespective of the order of the fractional time derivative or the particular form of ...
Shaolong Zeng, Yangfan Hu, Shijing Tan, Biao Wang   +3 more
doaj   +1 more source

Quantum Field Theories and Critical Phenomena on Defects

, 2005
We construct and investigate quantum fields induced on a d-dimensional dissipationless defect by bulk fields propagating in a (d+1)-dimensional space. All interactions are localized on the defect. We derive a unitary non-canonical quantum field theory on
Albeverio, Binder, Campostrini, Campostrini, Campostrini, Cherednik, Davide Fichera, Delfino, Deng, Di Francesco, Diehl, Ettore Vicari, Fisher, Jost, Kosterlitz, Lawrie, Mermin, Mihail Mintchev, Mintchev, Mintchev, Mintchev, Mintchev, Pelissetto, Pelissetto, Sak, Saleur, Suzuki, Suzuki, Suzuki, Zinn-Justin   +29 more
core   +1 more source

Structural and functional characterization of chitinase from carnivorous plant Drosera adelae

FEBS Open Bio, EarlyView.
A class I chitinase from the carnivorous plant Drosera adelae was expressed and purified using a yeast system, revealing high enzymatic activity. Structural analyses of the catalytic and chitin‐binding domains identified key tyrosine residues involved in substrate binding, offering insights into the enzyme's adaptation for insect digestion.
Kazunari Yoneda, Yuki Naruse, Yusaku Suizu, Tomohiro Araki, Yoshikazu Hoshi, Haruhiko Sakuraba, Junji Hayashi, Toshihisa Ohshima   +7 more
wiley   +1 more source