Results 81 to 90 of about 32,951 (214)
A linear/quadratic order parameter coupling description of the Verwey transition in magnetite, Fe3O4
Acta Crystallographica Section B, Volume 81, Issue 4, Page 427-436, August 2025.The change in symmetry at the Verwey transition in magnetite puts it in an important class of phase transitions with linear/quadratic coupling between two separate order parameters. We use group theory to characterize the form of the coupling between charge order and an electronic instability, and test the model with structural data.The change in ...
Michael A. Carpenter +5 more
wiley +1 more source
Circumference of 3-connected cubic graphs
, 2017 The circumference of a graph is the length of its longest cycles. Jackson established a conjecture of Bondy by showing that the circumference of a 3-connected cubic graph of order $n$ is $\Omega(n^{0.694})$.
Liu, Qinghai, Yu, Xingxing, Zhang, Zhao
core +1 more source
Two Key Ferredoxins for Nitrogen Fixation Have Different Specificities and Biophysical Properties
Chemistry – A European Journal, Volume 31, Issue 37, July 2, 2025.Two ferredoxins, FdC and FdN, are collectively essential for the process of nitrogen fixation by the iron nitrogenase in R. capsulatus. We explore the biophysical factors, through spectroscopic and structural characterizations, which determine ferredoxin functionality and pathway specificity. The structure of FdC (PDB: 9I2A) and model of FdN (AF‐D5ARY6)
Holly Addison +5 more
wiley +1 more source
, 2011 Belgium is amongst few artificial countries, established on purpose, when Dutch and French speaking parts were joined in a single unit. This makes Belgium a particularly interesting testbed for studying bio-inspired techniques for simulation and analysis
Adamatzky, Andrew +2 more
core +1 more source
Health Promotion Journal of Australia, Volume 36, Issue 3, July 2025.ABSTRACT Sport‐related concussion is a rising public health concern with claims that there is a concussion crisis in sport. An estimated 36% of Aboriginal and Torres Strait Islander peoples participate in sport‐related activity at least once per week; yet, there is a paucity of information relating to concussion assessment in this population.
Kahlia McCausland +5 more
wiley +1 more source
Lecturas de Economía, 2007 Este artículo analiza los impactos monetarios e institucionales de la deuda pública interna en Colombia en el siglo XIX. Se expone la naturaleza de esta deuda y su evolución institucional, con el fin de bosquejar una parte de la matriz institucional del ...
Angela Milena Rojas
doaj
GCB Bioenergy, Volume 17, Issue 7, July 2025.We analyze sequence‐structure–function relationships, particularly interface mutations, in cellulose synthase (CESA) complexes (CSCs), which evolved from homomeric to heteromeric forms in seed plants. Heterologous expression of an evolutionarily divergent CESA minimizes interference with endogenous CSCs, promoting homomeric CSC formation and enhanced ...
Linfang Wei +9 more
wiley +1 more source
, 1996 We describe the twisted affine superalgebra $sl(2|2)^{(2)}$ and its quantized version $U_q[sl(2|2)^{(2)}]$. We investigate the tensor product representation of the 4-dimensional grade star representation for the fixed point subsuperalgebra $U_q[osp(2|2)]$
Gould, Mark D. +3 more
core +1 more source
Devaluation-bias and the Bretton Woods System. A comment
PSL Quarterly Review, 2013 In this brief note, the author comments on Samual I. Katz’ “Devaluation-Bias and the Bretton Woods System”, arguing that the alleged devaluation-bias of the Bretton Woods system may have reflected prevailing conditions and circumstances rather than any ...
J. HEIN
doaj +1 more source
PSL Quarterly Review, 2014 Although Carlo M. Cipolla’s book Le avventure della lira, which covers twelve centuries of monetary history, is very interesting and authoritative, it is also unlikely to to become available in English.
D.M. STREET
doaj +1 more source