Results 71 to 80 of about 5,950,394 (339)

Habitual tea and coffee consumption and mean reaction time among Qatari adults [PDF]

open access: green, 2021
Alaa Jaber Heggy   +5 more
openalex   +1 more source

Controlling spatiotemporal chaos in oscillatory reaction-diffusion systems by time-delay autosynchronization [PDF]

open access: yes, 2004
Diffusion-induced turbulence in spatially extended oscillatory media near a supercritical Hopf bifurcation can be controlled by applying global time-delay autosynchronization. We consider the complex Ginzburg-Landau equation in the Benjamin-Feir unstable
A.S. Mikhailov   +35 more
core   +2 more sources

Peptide‐based ligand antagonists block a Vibrio cholerae adhesin

open access: yesFEBS Letters, EarlyView.
The structure of a peptide‐binding domain of the Vibrio cholerae adhesin FrhA was solved by X‐ray crystallography, revealing how the inhibitory peptide AGYTD binds tightly at its Ca2+‐coordinated pocket. Structure‐guided design incorporating D‐amino acids enhanced binding affinity, providing a foundation for developing anti‐adhesion therapeutics ...
Mingyu Wang   +9 more
wiley   +1 more source

Decay Process for Three - Species Reaction - Diffusion System

open access: yes, 1999
We propose the deterministic rate equation of three-species in the reaction - diffusion system. For this case, our purpose is to carry out the decay process in our three-species reaction-diffusion model of the form $A+B+C\to D$.
Avnir D.   +9 more
core   +1 more source

Real‐time assay of ribonucleotide reductase activity with a fluorescent RNA aptamer

open access: yesFEBS Letters, EarlyView.
Ribonucleotide reductases (RNR) synthesize DNA building blocks de novo, making them crucial in DNA replication and drug targeting. FLARE introduces the first single‐tube real‐time coupled RNR assay, which enables isothermal tracking of RNR activity at nanomolar enzyme levels and allows the reconstruction of allosteric regulatory patterns and rapid ...
Jacopo De Capitani   +4 more
wiley   +1 more source

Observation of a bacteriochlorophyll anion radical during the primary charge separation in a reaction center [PDF]

open access: yes, 1989
The primary light-induced charge separation in reaction centers of Rhodobacter sphaeroides was investigated with femtosecond time resolution. The absorption changes in the time range 100 fs to 1 ns observed after direct excitation of the primary donor P ...
Finkele, Ulrich   +6 more
core   +2 more sources

Disordered but rhythmic—the role of intrinsic protein disorder in eukaryotic circadian timing

open access: yesFEBS Letters, EarlyView.
Unstructured domains known as intrinsically disordered regions (IDRs) are present in nearly every part of the eukaryotic core circadian oscillator. IDRs enable many diverse inter‐ and intramolecular interactions that support clock function. IDR conformations are highly tunable by post‐translational modifications and environmental conditions, which ...
Emery T. Usher, Jacqueline F. Pelham
wiley   +1 more source

Study on the manifestation of reaction speed at young athletes (basketball vs football players)

open access: yesAnnals of the “Ştefan cel Mare” University: Physical Education and Sport Section - The Science and Art of Movement
The present study tries to make a comparison between the specific performances of the reaction speed between 2 groups of subjects, basketball and football athletes – Under 10 category, boys.
LAKOTOS Ilie Ionuț   +5 more
doaj   +1 more source

Effects of HRV biofeedback training on recovery, stress management, reaction time and concentration in competitive rowing – preliminary study [PDF]

open access: yesEuropean Journal of Translational and Clinical Medicine
Background: Our aim was to determine the effect of HRV biofeedback (HRVB) training on psychophysiological factors, e.g. reaction time, stress management and concentration during the starting period in competitive rowing.
Zuzanna Myszka   +3 more
doaj   +1 more source

Protein pyrophosphorylation by inositol pyrophosphates — detection, function, and regulation

open access: yesFEBS Letters, EarlyView.
Protein pyrophosphorylation is an unusual signaling mechanism that was discovered two decades ago. It can be driven by inositol pyrophosphate messengers and influences various cellular processes. Herein, we summarize the research progress and challenges of this field, covering pathways found to be regulated by this posttranslational modification as ...
Sarah Lampe   +3 more
wiley   +1 more source

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