Results 71 to 80 of about 9,537,873 (210)

Heat treatment of steel 100CrMn6: Influence of temperature and austenitization time [PDF]

This study deals with influence of temperature and time of austenitization on final mechanical properties, especially Rockwell hardness (HRC), obtained after heat treatment of steel 100CrMn6 (1.3520).
Staněk, Michal, Bednařík, Martin, Ovsík, Martin   +2 more
core   +2 more sources

Structural and biochemical analysis of a B12 superbinder

FEBS Letters, EarlyView.
BtuG proteins are vitamin B12 scavengers in Bacteroides thetaiotaomicron, a dominant human gut bacterium. We present crystal structures of three BtuG homologs bound to cobalamin and its precursor cobinamide, revealing picomolar binding affinities, among the highest known for any natural protein.
Jose M. Martinez Felices, Jacob J. Whittaker, Dirk J. Slotboom, Albert Guskov   +3 more
wiley   +1 more source

Influence of Inoculum Content on Performance of Anaerobic Reactors for Treating Cattle Manure using Rumen Fluid Inoculum [PDF]

, 2009
Biogas productions of cattle manure using rumen fluid inoculums were determined using batch anaerobic digesters at mesophilic temperatures (room and 38.5 oC). The aim of this paper was to analyze the influence of rumen fluid contents on biogas yield from
Seno, Johari, Budiyono, Budiyono, B. , Budiyono, I N. , Widiasa, Sunarso, Sunarso, Seno , Johari, I.N. , Widiasa   +6 more
core   +3 more sources

Impact of temperature on the brightening of neutral and charged dark excitons in WSe2 monolayer

Nanophotonics
Optically dark states play an important role in the electronic and optical properties of monolayers (MLs) of semiconducting transition metal dichalcogenides.
Kipczak Łucja, Zawadzka Natalia, Jana Dipankar, Antoniazzi Igor, Grzeszczyk Magdalena, Zinkiewicz Małgorzata, Watanabe Kenji, Taniguchi Takashi, Potemski Marek, Faugeras Clément, Babiński Adam, Molas Maciej R.   +11 more
doaj   +1 more source

Structures of mycobacterial 3‐methylcrotonyl‐CoA carboxylase reveal carrier‐domain translocation between catalytic sites

FEBS Letters, EarlyView.
Mycobacterial 3‐methylcrotonyl‐CoA carboxylase uses a mobile biotin‐carrying domain to shuttle a carboxyl group between two catalytic sites, enabling carboxylation of 3‐methylcrotonyl‐CoA during leucine breakdown. Cryo‐electron microscopy captures the carrier at both sites and reveals an inward loop movement that may prevent futile rebinding to the ...
Ajit Yadav, Bogdan I. Florea, Sebastian Geibel   +2 more
wiley   +1 more source

Influence of temperature fluctuations on the shape of the spectral continuum [PDF]

, 2008
We investigate the influence of stochastic temperature fluctuations on the observed spectra in continuum. Temperature fluctuations exist in the photospheres and atmospheres of stars, in interstellar media, and in the vicinity of AGN and quasars. In these
NICOLAY SILANTIEV ALEKSEEVICH
core  

The Shewanella oneidensis Fic enzyme SoFic targets the switch‐I region of EF‐Tu for AMPylation

FEBS Letters, EarlyView.
Fic enzymes mediate diverse post‐translational modifications across all domains of life, including AMPylation. Prokaryotic EF‐Tu can be AMPylated and deAMPylated by the conserved Fic enzyme SoFic. Structural and biochemical approaches were used to characterize the effect of AMPylation on EF‐Tu, SoFic's enzymatic activities, and the enzyme‐target ...
Svenja Runge, Vivian Pogenberg, Alexander Baumgart, Bente Siebels, Hartmut Schlüter, Michael Hecht‐Bucher, Aymelt Itzen   +6 more
wiley   +1 more source

Predation life history responses to increased temperature variability [PDF]

, 2014
This study was funded by a Postdoctoral fellowship to MB (SFRH/BPD/82259/2011) Fundacao para a Ciencia e Tecnologia (www.fct.pt/index.phtml.pt) and with a ‘‘Bolsista CAPES/BRASIL’’, (Project A058/2013) to AMVMS.The evolution of life history traits is ...
Barbosa, Miguel, Miguel Barbosa (633512), Pestana, Joao, Joao Pestana (633513), Miguel Barbosa, Amadeu M. V. M. Soares (324654), Soares, Amadeu M V M, Joao Pestana, Amadeu M. V. M. Soares, Soares, Amadeu M. V. M., Amadeu M V M Soares   +10 more
core   +2 more sources

Chiral separation of chloroalkanes with the chromatographic column onboard Martian rovers

FEBS Letters, EarlyView.
Computer image of the Rosalind Franklin Rover of ESA's ExoMars mission. ExoMars is scheduled to land on planet Mars in Oxia Planum in 2029. This area represents an interesting spot to look for biosignatures. Investigations of ExoMars include measurement on molecular chirality. We show that chiral chloroalkanes, that have been identified on Mars, can be
Asma Merzougui, Agnes Banreti, Armelle L. Ernst, Guillaume Leseigneur, Uwe J. Meierhenrich   +4 more
wiley   +1 more source

Automated in-situ calibrations at the Curie temperature of ferroelectric materials [PDF]

At industrial process conditions, the reading of thermometers can change or drift over time. To reduce the risk of having such undetected errors in the measurement, thermometers can be recalibrated periodically off-process, which is an elaborate and ...
Schalles, Marc, Vrdoljak, Pavo
core   +1 more source