Results 71 to 80 of about 144,391 (309)
From mice to humans—divergent strategies for intestinal homeostasis and regeneration
Recent advances such as organoid genome editing, xenotransplantation, imaging, and whole‐genome sequencing have enabled direct studies of human intestinal stem cells (ISCs). These studies reveal species‐specific features, including slower ISC proliferation, distinct injury responses, slower somatic mutation accumulation in humans, and an inverse ...
Keiko Ishikawa +2 more
wiley +1 more source
Manipulating line waves in flat graphene for agile terahertz applications
Reducing open waveguides enabled by surface waves, such as surface plasmon polaritons, to a one-dimensional line is attractive due to the potentially enhanced control over light confinement and transport.
Bisharat Dia’aaldin J. +1 more
doaj +1 more source
Structural insights and therapeutic targets in Acinetobacter baumannii capsule biosynthesis
Hypervirulent KL49 A. baumannii's capsular polysaccharide contains the nonulosonic acid 8‐epi‐Leg5,7Ac2, synthesized by epimerization via ElaA, ElaB, and ElaC. Crystal structures of ElaA, ElaB, and ElaC reveal their role in CMP‐Leg5,7Ac2 synthesis and regioselective C8 epimerization.
Woo Cheol Lee +7 more
wiley +1 more source
This paper focuses on the deduction of surface impedance and absorption coefficient of locally and non-locally reactive materials in free field. A sound wave model based on the complex image theory is introduced and used for deducing the characteristics ...
Yahu Zhang +3 more
doaj +1 more source
α‐Synuclein aggregation landscape from phase separation to neurotoxic intermediates
Alpha‐synuclein aggregation in Parkinson's disease involves a complex landscape of transient intermediates, including oligomers, fibrils and liquid–liquid phase separation (LLPS). A view is emerging in which LLPS maturation into solid‐like condensates may contribute to the formation of neurotoxic species.
Silvia Arino +2 more
wiley +1 more source
Measurement of the specific surface area of loose copper deposit by electrochemical methods
In the work the surface area of the electrode with dispersed copper deposit obtained within 30 seconds was evaluated by techniques of chronopotentiometry (CPM) and impedance spectroscopy.
E. A. Dolmatova +2 more
doaj +1 more source
Inositol pyrophosphates are energy‐rich signaling molecules that perform critical functions in cells. Three different families of phosphatases hydrolyze the β phosphate of the inositol pyrophosphate molecules: two have narrow specificities and one is promiscuous.
Ronda J. Rolfes
wiley +1 more source
Humidity dependent impedance of Zn(_x)Co(_2-x)GeO(_4) [PDF]
Zn(_x)Co(_2-x)GeO(_4) materials were prepared and the variation in structure with composition was investigated using XED, SEM and EDX analysis. Limited series of solid solution were identified at both ends of the compositional range.
Hales, Debbie
core
Reconstructing enzyme evolution by protein engineering
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 +2 more
wiley +1 more source
High-Frequency Electrodynamics of Nanostructured Multiband Superconductors
The effect of artificially created 0D and 1D structural defects’ nanostructure formed by implanted dielectric nanoparticles or irradiation defects on microwave properties of high-Tc superconductor films is analysed based on the phenomenological theory ...
O.L. Kasatkin, O.A. Kalenyuk, A.O. Pokusinskyi, S.I. Futimsky, and A.P. Shapovalov
doaj +1 more source

