Results 81 to 90 of about 119,289 (331)

Gut microbiome and aging—A dynamic interplay of microbes, metabolites, and the immune system

FEBS Letters, EarlyView.
Age‐dependent shifts in microbial communities engender shifts in microbial metabolite profiles. These in turn drive shifts in barrier surface permeability of the gut and brain and induce immune activation. When paired with preexisting age‐related chronic inflammation this increases the risk of neuroinflammation and neurodegenerative diseases.
Aaron Mehl, Eran Blacher
wiley   +1 more source

Regression model optimization using least square algorithms for streamflow data transposition in tropical humid Water Basin

HydroResearch
Several projects are under consideration within the Anambra-Imo River Basin (AIRB). However, the location of these projects differs from established gauging stations, necessitating transposition of hydrological information for ungauged sites.
Benjamin Nnamdi Ekwueme
doaj   +1 more source

Transposition and Adaptation of Models in Post-Conflict Northern Ireland: The Personal Experience of Brandon Hamber

Itinéraires, 2016
In deeply-divided societies coming out of conflict the role of mediators from the “middle-ground” according to John Paul Lederach’s theory is an asset.
Fabrice Mourlon
doaj   +1 more source

Metrics for pitch collections [PDF]

, 2010
Models of the perceived distance between pairs of pitch collections are a core component of broader models of the perception of tonality as a whole. Numerous different distance measures have been proposed, including voice-leading, psychoacoustic, and ...
Laney, Robin, Milne, Andrew J., Sethares, William A., Sharp, David B.   +3 more
core  

Frustration, Entanglement, and Correlations in Quantum Many Body Systems

, 2013
We derive an exact lower bound to a universal measure of frustration in degenerate ground states of quantum many-body systems. The bound results in the sum of two contributions: entanglement and classical correlations arising from local measurements.
Giampaolo, S. M., Illuminati, F., Marzolino, U.   +2 more
core   +1 more source

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

Le manga est-il nécessairement lié à un contexte de production ?

Alternative Francophone, 2016
Le manga est-il nécessairement lié à un contexte de production ? Si ce format s’avère indissociable de son origine, alors il ne peut s’exporter et se réimplanter en France.
Laurent Pendarias, Adrien Pendarias
doaj   +1 more source

Some formal results for the valence bond basis

, 2006
In a system with an even number of SU(2) spins, there is an overcomplete set of states--consisting of all possible pairings of the spins into valence bonds--that spans the S=0 Hilbert subspace. Operator expectation values in this basis are related to the
Anders W. Sandvik, Anderson, Anderson, Balint-Kurti, Bethe, Binder, Bose, Capriotti, Evertz, Fazekas, Figueirido, Gros, Havilio, Havilio, Havilio, Hulthén, K.S.D. Beach, Kivelson, Kohmoto, Kohmoto, Liang, Liang, Lin, Lou, Majumdar, Marshall, Nussinov, Pauling, Poilblanc, Raman, Ramasesha, Read, Read, Rokhsar, Rumer, Sachdev, Sachdev, Sandvik, Sandvik, Santoro, Senthil, Sondhi, Soos, Sutherland, Sutherland, Syljuåsen, Vishwanath   +46 more
core   +1 more source

Hyperosmotic stress induces PARP1‐mediated HPF1‐dependent mono(ADP‐ribosyl)ation

FEBS Letters, EarlyView.
Sorbitol‐induced hyperosmotic stress rapidly induces reversible mono(ADP‐ribosyl)ation (MARylation) on PARP1 without the signs of genotoxic signaling. We show that PARP1 autoMARylation is HPF1 dependent and forms hydroxylamine‐resistant O‐glycosidic linkages.
Anna Georgina Kopasz, Mihály Mérey, Rebeka Vásárhelyi, Ramóna Pék, Victor Imburchia, László Henn, Adrián Kószó, Nicholas D. Lakin, Ivan Ahel, Sébastien Huet, Ágnes Czibula, Gyula Timinszky   +11 more
wiley   +1 more source

Comparing the use of carotid-subclavian bypass and subclavian-carotid transposition for zone 2 aortic repair

JVS-Vascular Insights
Objective: Left subclavian artery revascularization is indicated in most cases of zone 2 aortic repair. This is commonly accomplished via left carotid to subclavian bypass (SB) or transposition.
Farhad R. Udwadia, MD, MBE, Eimaan S. Shergill, Kian Draper, MD, Maja Grubisic, BSc, MSc, Kirk Lawlor, MD, MSc, FRCSC, Jonathan Misskey, MD, MSc, FRCSC, Jason Faulds, MD, MHSc, FRCSC   +6 more
doaj   +1 more source