Results 91 to 100 of about 6,229,843 (307)

Calpain small subunit homodimerization is robust and calcium‐independent

open access: yesFEBS Letters, EarlyView.
Calpains dimerize via penta‐EF‐hand (PEF) domains. Using single‐molecule force spectroscopy, we measured the strength and kinetics of PEF–PEF homodimer binding. The interaction is robust, shows a transient conformational step before dissociation, and remains largely insensitive to Ca2+.
Nesha May O. Andoy   +4 more
wiley   +1 more source

Direct Acceleration of an Electron Beam with a Radially Polarized Long-Wave Infrared Laser

open access: yesPhotonics
Direct laser acceleration with radially polarized lasers is an intriguing variant of laser-based particle acceleration that has the potential of offering GeV/cm-level energy while avoiding the instabilities and complex beam dynamics associated with ...
William H. Li   +2 more
doaj   +1 more source

Evaluation of the Sigma Quality level for Serum Iron determination by two colorimetric methods, Ferrozine and Ferene S [PDF]

open access: yes, 2019
Iron plays important functions in the body such as the formation and functioning of hemoglobin and it’s disorders are among the most common diseases of human1.
Faria, Ana Paula   +3 more
core  

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

open access: yesFEBS 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   +5 more
wiley   +1 more source

Structural and Optical Properties of Amorphous Al2O3 Thin Film Deposited by Atomic Layer Deposition

open access: yesAdvances in Condensed Matter Physics, 2018
Aluminum oxide (Al2O3) amorphous structure with short-range order and long-range disorder has presented promising applications in optical and optoelectronic devices.
Shuzheng Shi   +5 more
doaj   +1 more source

COMPETENCY ENHANCEMENT MICROBIOLOGY TESTING OF FISH QUARANTINE LABORATORY OFFICHER AT FISH QUARANTINE AND INSPECTION AGENCY, QUALITY CONTROL, AND SAFETY OF FISHERY PRODUCT THROUGH EDUCATION AND TRAINING [PDF]

open access: yes, 2013
The pace of globalization is increasingly apparent demanding technological advances in all fields. Government officials serve as the subject of development practitioners have the required competence.
Yahya, Tri Laksana
core  

Gut microbiome and aging—A dynamic interplay of microbes, metabolites, and the immune system

open access: yesFEBS Letters, EarlyView.
Age‐dependent shifts in microbial communities engender shifts in microbial metabolite profiles. These in turn drive shifts in barrier surface permeability of the gut and brain and induce immune activation. When paired with preexisting age‐related chronic inflammation this increases the risk of neuroinflammation and neurodegenerative diseases.
Aaron Mehl, Eran Blacher
wiley   +1 more source

Automated seizure detection in epilepsy using a novel dynamic temporal-spatial graph attention network

open access: yesScientific Reports
Epilepsy is a neurological disorder characterized by recurrent seizures caused by excessive electrical discharges in brain cells, posing significant diagnostic and therapeutic challenges.
Kunxian Yan   +11 more
doaj   +1 more source

A methionine‐lined active site governs carbocation stabilization and product specificity in a bacterial terpene synthase

open access: yesFEBS 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   +13 more
wiley   +1 more source

Space shuttle engineering and operations support. Avionics system engineering [PDF]

open access: yes
The shuttle avionics integration laboratory (SAIL) requirements for supporting the Spacelab/orbiter avionics verification process are defined. The principal topics are a Spacelab avionics hardware assessment, test operations center/electronic systems ...
Broome, P. A.   +2 more
core   +1 more source

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