Results 41 to 50 of about 3,715,768 (201)

Radiation reaction effects in cascade scattering of intense, tightly focused laser pulses by relativistic electrons: Classical approach

Physical Review Special Topics. Accelerators and Beams, 2014
Nonlinear cascade scattering of intense, tightly focused laser pulses by relativistic electrons is studied numerically in the classical approximation including radiation damping for the quantum parameter ⟨ℏω_{x ray ...
A. Zhidkov, S. Masuda, S. S. Bulanov, J. Koga, T. Hosokai, R. Kodama   +5 more
doaj   +1 more source

p190A/ARHGAP35 and p190B/ARHGAP5 proteins in endometrial cancer: a novel cancer‐relevant paralog interplay

Molecular Oncology, EarlyView.
This study identifies ARHGAP5, in addition to the frequently mutated ARHGAP35, as significantly mutated in endometrial cancer. Mutations in both genes co‐occur and are associated with their correlated downregulation. Functional CRISPR studies show that both paralogs regulate similar pathways, including actin cytoskeleton organization.
Mathilde Pinault, Capucine Heraud, Mélissa Correia de Oliveira, Véronique Neaud, Valérie Valesco, Valérie Prouzet‐Mauleon, Béatrice Turcq, Jean‐William Dupuy, Anne‐Aurélie Raymond, Sabrina Croce, Frédéric Saltel, Valérie Lagrée, Violaine Moreau   +12 more
wiley   +1 more source

Ionization-Induced Self-Compression of Tightly Focused Femtosecond Laser Pulses

, 2014
As lasers become progressively higher in power, optical damage thresholds will become a limiting factor. Using the nonlinear optics of plasma may be a way to circumvent these limits.
Hou, B., He, Z-H, Nees, J. A., Krushelnick, K., Thomas, A. G. R.   +4 more
core   +4 more sources

RoundMi: A quantitative method to analyze mitochondrial morphology in mitotic cells

FEBS Open Bio, EarlyView.
RoundMi is a workflow for rapid analysis of mitochondrial morphology in mitotic cells. By combining adaptive preprocessing with automated segmentation and quantification, it enables accurate measurements from single focal plane images, reducing acquisition time and computational demands while remaining compatible with high‐throughput fixed and live ...
Elmira Parvindokht Bararpour, Christine Volmert, Valentina Piano   +2 more
wiley   +1 more source

Polarization engineering with ultrafast laser writing in transparent media

, 2012
In this thesis novel developments in the field of femtosecond laser material processing are reported. Thanks to the unique properties of light-matter interaction on ultrashort time scales, this direct writing technique allowed the observation of unique ...
Beresna, Martynas
core   +1 more source

Scattered field formalism in the particle-in-cell method for plasma acceleration in tightly focused ultrashort laser beams

, 2023
The scattered field formalism is combined to the particle-in-cell method to model relativistic laser-plasma dynamics in complex field configurations.
Lytova, M., Vallières, S., Légaré, F., Fillion-Gourdeau, F., MacLean, S.   +4 more
core   +2 more sources

Characterising Spatio-Temporal Coupling of Tightly Focused Femtosecond Laser Pulses in Micro-Structured Dispersive Materials

Photonics
A 2D numerical model based on the finite-difference time-domain (FDTD) method had been developed to investigate the correspondence between the spatio-temporal aspects and intensity evolution of a focused laser beam after the propagation through micro ...
Laura Ionel
doaj   +1 more source

Optical Interference and Self-Scattering Effect On Laser Ablation of Thin Silicon Films

MATEC Web of Conferences, 2013
We report measurement of the ablation depth and self-reflectivity from thin silicon films illuminated by a single tightly focused femtosecond laser pulse.
Zhang Hao, van Oosten D., Krol D. M., Dijkhuis J. I.   +3 more
doaj   +1 more source

Optical tweezers for a bottom-up assembly of few-atom systems

Advances in Physics: X, 2022
Tightly focused laser beams form optical tweezers that can hold and manipulate individual atoms. They give superb control over microscopic quantum systems and have paved the way for bottom up assembly of few-atom systems.
Mikkel F. Andersen
doaj   +1 more source

Hyperosmotic stress‐induced redistribution of pre‐mRNA cleavage factor I subunits is associated with shifts in alternative polyadenylation

FEBS Open Bio, EarlyView.
Hyperosmotic stress triggers the relocation of the CFIm complex from the nucleus to the cytoplasm. This shift creates a nuclear ‘stoichiometric bottleneck’, limiting CFIm availability for mRNA processing. Consequently, specific mRNAs like NUDT21 and DICER1 undergo targeted 3′UTR shortening, demonstrating how spatial protein dynamics drive rapid ...
Hitomi Soumiya, Masatake Osawa, Hidefumi Fukumitsu   +2 more
wiley   +1 more source