Results 71 to 80 of about 2,270,542 (300)

Spectroscopy studies of straincompensated mid-infrared QCL active regions on misoriented substrates [PDF]

, 2014
In this work, we perform spectroscopic studies of AlGaAs/InGaAs quantum cascade laser structures that demonstrate frequency mixing using strain-compensated active regions.
Cheng, Emily, Grayer, Justin, Meyer, Charles, Roberts, Denzil, Triplett, Gregory Edward   +4 more
core   +1 more source

Stellar Magnetism and starspots: the implications for exoplanets [PDF]

, 2013
Stellar variability induce by starspots can hamper the detection of exoplanets and bias planet property estimations. These features can also be used to study star-planet interactions as well as inferring properties from the underlying stellar dynamo ...
del Burgo, Carlos, Southworth, John, Vilela, Conrad   +2 more
core   +1 more source

Tau acetylation at K331 has limited impact on tau pathology in vivo

FEBS Letters, EarlyView.
We mapped tau post‐translational modifications in humanized MAPT knock‐in mice and in amyloid‐bearing double knock‐in mice. Acetylation within the repeat domain, particularly around K331, showed modest increases under amyloid pathology. To test functional relevance, we generated MAPTK331Q knock‐in mice.
Shoko Hashimoto, Yukio Matsuba, Mika Takahashi, Takaomi C. Saido   +3 more
wiley   +1 more source

Bacterial capsular polysaccharides with antibiofilm activity share common biophysical and electrokinetic properties

Nature Communications, 2023
Bacterial biofilms are surface-attached communities that are difficult to eradicate due to a high tolerance to antimicrobial agents. The use of non-biocidal surface-active compounds to prevent the initial adhesion and aggregation of bacterial pathogens ...
Joaquín Bernal-Bayard, Jérôme Thiebaud, Marina Brossaud, Audrey Beaussart, Céline Caillet, Yves Waldvogel, Laetitia Travier, Sylvie Létoffé, Thierry Fontaine, Bachra Rokbi, Philippe Talaga, Christophe Beloin, Noëlle Mistretta, Jérôme F. L. Duval, Jean-Marc Ghigo   +14 more
doaj   +1 more source

The core fundamental plane of B2 radio galaxies

, 2009
The photometric, structural and kinematical properties of the centers of elliptical galaxies, harbor important information of the formation history of the galaxies.
Balmaverde, Bernardi, Bettoni, Bettoni, Capetti, Capetti, Capetti, Colla, D. Bettoni, De Juan, De Koff, de Ruiter, de Ruiter, de Ruiter, Desroches, Emonts, Emonts, Faber, Fanti, Fanti, Ferrarese, González-Serrano, H. de Ruiter, Hyde, Jaffe, Jørgensen, Kormendy, Lauer, Massaglia, Morganti, Morganti, Noel-Storr, Ochsenbein, P. Parma, Parma, Paturel, R. Falomo, R. Fanti, Sargent, Trussoni, Verdoes Kleijn   +40 more
core   +1 more source

Structural insights into an engineered feruloyl esterase with improved MHET degrading properties

FEBS Letters, EarlyView.
A feruloyl esterase was engineered to mimic key features of MHETase, enhancing the degradation of PET oligomers. Structural and computational analysis reveal how a point mutation stabilizes the active site and reshapes the binding cleft, expading substrate scope.
Panagiota Karampa, Konstantinos Makryniotis, Theofani‐Iosifina Sousani, Evangelos Topakas, Vangelis Daskalakis, Maria Dimarogona   +5 more
wiley   +1 more source

Resolution of water in crude oil emulsion by some novel aromatic amine polyesters

Egyptian Journal of Petroleum, 2015
In this work, three aromatic amines (p-toluidine, p-nitroaniline and p-chloroaniline) were chosen as bases for the repatriation of some nonionic polyesters. These amines were ethoxylated with different total number of ethylene oxide units 6, 12, 18.
A.M. Al-Sabagh, N.M. Nasser, E.A. Khamis, M. Abd-El-Raouf   +3 more
doaj   +1 more source

Structure, reactivity and electronic properties of V-doped Co clusters

, 2009
Structures, physical and chemical properties of V doped Co$_{13}$ clusters have been studied in detail using density functional theory based first-principles method.
Datta, Soumendu, Kabir, Mukul, Mookerjee, Abhijit, Saha-Dasgupta, Tanusri   +3 more
core   +1 more source

Observations of snowpack properties to evaluate ground-based microwave remote sensing [PDF]

, 2013
Active microwave radar has been shown to have great potential for estimating snow water equivalent (SWE) globally from space. To help evaluate optimal active microwave sensor configurations to observe SWE, we evaluated ground-based Frequency Modulated ...
Emad Tajkhorshid (243146), Günther H. Peters (1517515), Jesper J. Madsen (1517524), Johan H. Faber (146290), Ole H. Olsen (1517518), Y. Zenmei Ohkubo (1517521)   +5 more
core   +2 more sources

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