Results 41 to 50 of about 18,701 (299)

Two statistical regimes in the transition to filamentation

open access: yes, 2023
We experimentally investigate fluctuations in the spectrum of ultrashort laser pulses propagating in air, close to the critical power for filamentation.
Jérôme Kasparian (2945787)   +4 more
core   +1 more source

Ultrafast laser filamentation in ethanol for nanomaterials synthesis

open access: yes, 2022
Ultrafast laser filamentation occurs when laser light propagating in nondiffracting regime, at high laser intensity for distance greater than Rayleigh length in transparent media. An extended high intensity core with clamped intensity, supercontinuum and
Tan, Han Yi
core   +1 more source

The Shewanella oneidensis Fic enzyme SoFic targets the switch‐I region of EF‐Tu for AMPylation

open access: yesFEBS 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   +6 more
wiley   +1 more source

Chiral separation of chloroalkanes with the chromatographic column onboard Martian rovers

open access: yesFEBS Letters, EarlyView.
Computer image of the Rosalind Franklin Rover of ESA's ExoMars mission. ExoMars is scheduled to land on planet Mars in Oxia Planum in 2029. This area represents an interesting spot to look for biosignatures. Investigations of ExoMars include measurement on molecular chirality. We show that chiral chloroalkanes, that have been identified on Mars, can be
Asma Merzougui   +4 more
wiley   +1 more source

Multiple filamentation of laser pulses in the glass [PDF]

open access: yes, 2015
Results are presented of experiments on investigation of the spatial characteristics of multi-filamentation region of giga- and terawatt pulses of a Ti:sapphire laser in a glass.
Apeksimov, Dmitrij V.   +10 more
core   +2 more sources

Femtosecond filamentation by intensity clamping at a Freeman resonance [PDF]

open access: yes, 2014
We demonstrate that Freeman resonances have a strong impact on the nonlinear optical response in femtosecond filaments. These resonances decrease the transient refractive index within a narrow intensity window and strongly affect the filamentation ...
Hofmann, Michael, Brée, Carsten
core   +1 more source

Smaller is better: nanobodies meet NMR

open access: yesFEBS 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

TUP1-mediated filamentation in Candida albicans leads to inability to colonize the mouse gut

open access: yes, 2018
Aim: To investigate the role of Candida albicans TUP1-mediated filamentation in the colonization of the mice gut. Materials & methods: We used molecular genetics to generate a strain where filamentation is regulated by altering the expression of the
Blanca Huertas   +9 more
core   +1 more source

Invisible but not inaccessible—Revealing transient oligomers formed by intrinsically disordered proteins with solution NMR and complementary methods

open access: yesFEBS Letters, EarlyView.
Transient oligomers formed by intrinsically disordered proteins may be ‘invisible’ to direct detection yet remain accessible to solution NMR through equilibrium‐exchange measurements and pressure‐jump experiments. Complementary methods report on mass, stoichiometry, selected distance distributions, morphology, and internal packing.
Martin D. Gelenter, Ad Bax
wiley   +1 more source

The role of the C. albicans transcriptional repressor NRG1 during filamentation and disseminated candidiasis is strain dependent

open access: yesmSphere
Candida albicans is one of the most common causes of superficial and invasive fungal diseases in humans. Its ability to cause disease is closely linked to its ability to undergo a morphological transition from budding yeast to filamentous forms (hyphae ...
Rohan S. Wakade   +2 more
doaj   +1 more source

Home - About - Disclaimer - Privacy