Results 31 to 40 of about 279,876 (309)

Understanding magma genesis through analysis of melt inclusions: application of innovative micro-sampling techniques [PDF]

, 2007
Melt entrapped as inclusions in early-formed phenocrysts provide geochemists with an exceptional opportunity to study sample material from the earliest stages in the formation of a suite of lavas.
Harlou, Rikke
core  

Reconstructing enzyme evolution by protein engineering

FEBS Letters, EarlyView.
Natural enzyme evolution can be retraced by protein engineering methods such as directed evolution, rational design, and ancestral sequence reconstruction. These approaches reveal how enzymes emerged from ligand‐binding scaffolds, developed varying substrate preferences, formed oligomeric complexes, adapted to environmental changes, and evolved novel ...
Lukas Drexler, Markus R. Busch, Reinhard Sterner   +2 more
wiley   +1 more source

Effect of ferrochromium (FeCr) and ferroniobium (FeNb) alloys on inclusion and precipitate characteristics in austenitic stainless steels

Journal of Materials Research and Technology, 2023
Lab-scale alloying experiments were carried out by first adding commercial low-carbon ferrochrome (LCFeCr) alloys and then adding ferroniobium (FeNb) alloys in 316-grade austenitic stainless steel in this study.
Yong Wang, Chengsong Liu, Hongwei Ni, Andrey Karasev, Wangzhong Mu, Pär G. Jönsson, Joo Hyun Park   +6 more
doaj   +1 more source

(Table 2) Chemical composition of homogenized melt inclusions in clinopyroxenes from rocks of the Malaita Island

, 2005
(Table 2) Chemical composition of homogenized melt inclusions in clinopyroxenes from rocks of the Malaita ...
Vladimir A Simonov (6960893), YuR Vasil'ev (6960899), Kovyazin, S V, S V Kovyazin (6960896), John J Mahoney (6960902), Vasil'ev, YuR, Simonov, Vladimir A, Mahoney, John J   +7 more
core   +1 more source

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

L‐aspartate oxidase provides new insights into fumarate reduction in anaerobic darkness in Synechocystis sp. PCC6803

FEBS Letters, EarlyView.
Synechocystis strains deficient in succinate dehydrogenase (SDH) secrete more succinate than the WT under dark anaerobic conditions, supporting that SDH then primarily acts as SDH, not as a fumarate reductase. L‐aspartate oxidase (Laspo) from Synechocystis is functional under anaerobic conditions, reducing fumarate to succinate.
Kateryna Kukil, Jeffrey A. Hawkes, Cecilia Blikstad, Pia Lindberg   +3 more
wiley   +1 more source

Assessment and Improvement of Melt Quality of Recycled Secondary A357 Alloy by Application of the High Shear Melt Conditioning (HSMC) Technology

Crystals
In addition to impurities in recycled aluminum alloys, non-metallic inclusions are a significant factor that deteriorates the material’s castability and final mechanical properties.
Zhichao Niu, Zhongping Que, Jayesh B. Patel, Zhongyun Fan   +3 more
doaj   +1 more source

Effect of Nitrogen Content on the Formation of Inclusions in Fe-5Mn-3Al Steels

Crystals, 2020
The effect of N content on the characteristics and formation of inclusions in the Fe-5Mn-3Al steels was investigated in this study. Two synthetic steel melts were produced by two different methods—N2 gas purging and injecting—to introduce nitrogen into ...
Michelia Alba, Muhammad Nabeel, Neslihan Dogan   +2 more
doaj   +1 more source

Chemical zonation in olivine-hosted melt inclusions [PDF]

, 2014
International audienceSignificant zonation in major, minor, trace, and volatile elements has been documented in naturally glassy olivine-hosted melt inclusions from the Siqueiros Fracture Zone and the Galapagos Islands.
Zhang, Youxue, Guan, Y, Ma, C., Fabbrizio, Alessandro, Newcombe, M.E., Saal, A.E, Eiler, J.M., Stolper, E.M., Le Voyer, Marion   +8 more
core   +1 more source

Smaller is better: nanobodies meet NMR

FEBS Letters, EarlyView.
Nanobodies are single‐domain antigen‐binding fragments derived from camelid heavy chain antibodies. Their small size, high stability, and exceptional specificity make nanobodies uniquely useful probes for NMR studies of protein dynamics, transient conformational states, and protein–protein interactions.
Oleg Y. Dmitriev
wiley   +1 more source