Results 31 to 40 of about 611,408 (289)

A methionine‐lined active site governs carbocation stabilization and product specificity in a bacterial terpene synthase

FEBS Letters, EarlyView.
This study reveals a unique active site enriched in methionine residues and demonstrates that these residues play a critical role by stabilizing carbocation intermediates through novel sulfur–cation interactions. Structure‐guided mutagenesis further revealed variants with significantly altered product profiles, enhancing pseudopterosin formation. These
Marion Ringel, Carl P. O. Helmer, Shani Zev, Ronja Driller, Emily Buhr, Markus Reinbold, Renana Schwartz, Gabriel Foley, Mikael Boden, Daniel Garbe, Gerhard Schenk, Dan Thomas Major, Bernhard Loll, Thomas Brück   +13 more
wiley   +1 more source

An equation of state for oxygen and nitrogen [PDF]

, 1973
Recent measurements of thermodynamic properties of oxygen and nitrogen have provided data necessary for development of a single equation of state for both fluids.
Jacobsen, R. T., Myers, A. F., Stewart, R. B.   +2 more
core   +1 more source

Molecular dynamics simulations of positively selected codons in FcγRI reveal novel biochemical binding properties

FEBS Open Bio, EarlyView.
Evolutionary analysis across 32 placental mammals identified positive selection at residues H148 and W149 in the immune receptor FcγR1. Ancestral reconstruction combined with molecular dynamics simulations reveals how these mutations may influence receptor structure and dynamics, providing insight into the evolution of antibody recognition and immune ...
David A. Young, Omar Arias‐Gaguancela, Fiona Gibson, Morgan Grainger, Jodie Score, Amit Nathubhai, Mauricio Cafiero, Lee Richard Machado   +7 more
wiley   +1 more source

Phase transitions in geometrothermodynamics

, 2010
Using the formalism of geometrothermodynamics, we investigate the geometric properties of the equilibrium manifold for diverse thermodynamic systems. Starting from Legendre invariant metrics of the phase manifold, we derive thermodynamic metrics for the ...
Alberto Sánchez, Alejandro Vázquez, B. Mirza, C. Caratheodory, C.R. Rao, F. Weinhold, G. Ruppeiner, G. Ruppeiner, G. Ruppeiner, H. Quevedo, H. Quevedo, H. Quevedo, H. Quevedo, H.B. Callen, Hernando Quevedo, J. Åman, J.L. Álvarez, J.W. Gibbs, K. Huang, L.D. Landau, P.C.W. Davies, R. Cai, R. Hermann, S. Amari, Safia Taj, V.I. Arnold, W.L. Burke   +26 more
core   +1 more source

Thermodynamic, structural, surface and transport properties of Au-Ni liquid alloy at 1150 K

Bibechana, 2021
Thermodynamic, structural, surface, and transport properties of Au-Ni liquid alloy at 1150 K were computed using different theoretical approaches. The thermodynamic properties, such as excess Gibbs free energy of mixing, enthalpy of mixing, activity and
S K Yadav, N Chaudhary, D Adhikari
doaj   +3 more sources

Mechanochemical Synthesis and Characterization of Nanostructured ErB4 and NdB4 Rare‐Earth Tetraborides

Advanced Engineering Materials, Volume 27, Issue 6, March 2025.
ErB4 and NdB4 nanostructured powders are produced by mechanochemical synthesis. 5 h mechanical alloying and 4 M HCl acid leaching are used in the production. ErB4 and NdB4 powders exhibit maximum magnetization of 0.4726 emu g−1 accompanied with an antiferromagnetic‐to‐paramagnetic phase transition at about TN = 18 K and 0.132 emu g−1 with a maximum at ...
Burçak Boztemur, Faruk Kaya, Bora Derin, Mustafa Lütfi Öveçoğlu, Ju Li, Duygu Ağaoğulları   +5 more
wiley   +1 more source

2+1-dimensional electrically charged black holes in Einstein - Power Maxwell Theory

, 2012
A large family of new black hole solutions in 2+1-dimensional Einstein-Power-Maxwell (EPM) gravity with prescribed physical properties is derived. We show with particular examples that according to the power parameter k of the Maxwell field, the obtained
Gurtug, O., Halilsoy, M., Mazharimousavi, S. Habib   +2 more
core   +1 more source

Magnetic models on Apollonian networks [PDF]

, 2004
Thermodynamic and magnetic properties of Ising models defined on the triangular Apollonian network are investigated. This and other similar networks are inspired by the problem of covering an Euclidian domain with circles of maximal radii.
A. A. Migdal, D. W. Boyd, Hans J. Herrmann, M. Kaufman, Roberto F. S. Andrade   +4 more
core   +1 more source

Revisiting Stability Criteria in Ball‐Milled High‐Entropy Alloys: Do Hume–Rothery and Thermodynamic Rules Equally Apply?

Advanced Engineering Materials, Volume 27, Issue 6, March 2025.
The stability criteria affecting the formation of high‐entropy alloys, particularly focusing in supersaturated solid solutions produced by mechanical alloying, are analyzed. Criteria based on Hume–Rothery rules are distinguished from those derived from thermodynamic relations. The formers are generally applicable to mechanically alloyed samples.
Javier S. Blázquez, Alejandro F. Manchón‐Gordón, Antonio Vidal‐Crespo, Rafael Caballero‐Flores, Jhon J. Ipus, Clara F. Conde   +5 more
wiley   +1 more source

A model for nuclear matter fragmentation: phase diagram and cluster distributions

, 1998
We develop a model in the framework of nuclear fragmentation at thermodynamic equilibrium which can be mapped onto an Ising model with constant magnetization. We work out the thermodynamic properties of the model as well as the properties of the fragment
A. Tarancón, Bondorf, Borderie, Brézin, Campi, Coniglio, Dorso, Falcioni, Ferrenberg, Fisher, Fukugita, Gross, Gross, Gross, Hauger, J. Richert, J.M. Carmona, Kawasaki, Kertész, Lee, Ma, Metropolis, Pan, Pan, Pan, Pochodzalla, Richert, Schüttauf, Sokal, Stauffer, Zheng, Zinn-Justin   +31 more
core   +1 more source