Results 81 to 90 of about 158,251 (314)
FEBS Open Bio, EarlyView.The crystal structure of Borrelia burgdorferi nicotinamidase (PncA/BBE22) reveals the correct full‐length protein initiated from a non‐canonical AUU start codon. The structure validates previous biochemical findings and resolves a long‐standing annotation error, demonstrating that the truncated database sequence is structurally incompatible with the ...
Kalvis Brangulis
wiley +1 more source
Body-centered cubic (BCC) metals, extensively utilized in low-alloy high-strength steels and heat-resistant alloys, exhibit a pronounced ductile–brittle transition (DBT) at cryogenic temperatures, marked by a well-defined yet narrow ductile&ndash ...
Tianliang Zhao +4 more
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GeodermaThe passive sampler DGT (Diffusive Gradients in Thin-films) can assess the availability of various trace elements and pollutants—including transition metals (e.g. Hg, Ni, Cu, Cd, Zn or Pb), platinum group elements, organic contaminants (e.g. antibiotics,
Josep Galceran +6 more
doaj +1 more source
Directed evolution of enzymes at the crossroads of tradition and innovation
FEBS Open Bio, EarlyView.An iterative cycle of data‐driven enzyme optimization comprising four stages: genetic diversification of a template enzyme, expression of protein variants, high‐throughput evaluation, and machine‐learning‐guided redesign of the next variant library.
Maria Tomkova +2 more
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Hardness in arthropod exoskeletons in the absence of transition metals
, 2010 The arthropod cuticle is a remarkable and versatile biological material commonly composed of chitin and proteins Lessons can be learned from the way it is adapted to fit its functions The larval jewel beetle, Pseudotaenia frenchi, demonstrates hardness ...
Rasch, R. +11 more
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Annals of Clinical and Translational Neurology, EarlyView.ABSTRACT Objective Considerable efforts have been dedicated to developing effective treatments for post‐stroke executive impairment (PSEI), among which repetitive transcranial magnetic stimulation (rTMS) has shown great potential. This study aimed to investigate the therapeutic effects of high‐frequency rTMS on working memory (WM) and response ...
Mengting Lao +6 more
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Synthesis of guanidine from ammonium thiocyanate in solid state
Journal of the Brazilian Chemical Society, 2004 Guanidine is an important substance for modern living beings as well as for the prebiotic chemistry. We studied the reaction between ammonium and thiocyanate species in solid state with different substances (river sand, kaolin, transition metals, salts ...
Zaia Dimas A. M. +3 more
doaj
Preparation Process and Performance Analysis of Oxygen-containing Coating on Transition Metal
Yuanzineng kexue jishuAs candidate materials for the collector in thermionic energy converters (TECs), reducing the surface work function of transition metals can lower the barrier index between TEC electrodes, thereby improving their thermoelectric conversion efficiency and ...
MA Ru, ZHONG Wuye, JIN Rui, REN Siqi, YAO Siyu, QI Lijun
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Advanced Engineering Materials, Volume 27, Issue 6, March 2025.ErB4 and NdB4 nanostructured powders are produced by mechanochemical synthesis. 5 h mechanical alloying and 4 M HCl acid leaching are used in the production. ErB4 and NdB4 powders exhibit maximum magnetization of 0.4726 emu g−1 accompanied with an antiferromagnetic‐to‐paramagnetic phase transition at about TN = 18 K and 0.132 emu g−1 with a maximum at ...
Burçak Boztemur +5 more
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Advanced Engineering Materials, Volume 27, Issue 6, March 2025.The stability criteria affecting the formation of high‐entropy alloys, particularly focusing in supersaturated solid solutions produced by mechanical alloying, are analyzed. Criteria based on Hume–Rothery rules are distinguished from those derived from thermodynamic relations. The formers are generally applicable to mechanically alloyed samples.
Javier S. Blázquez +5 more
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