One-Shot Laser-Pulse Modification of Bare and Silica-Coated Gold Nanoparticles of Various Morphologies.

Gold nanoparticles are widely used in laser biomedical applications due to their favorable properties, mainly localized plasmon resonance. However, laser radiation can cause a change in the shape and size of plasmonic nanoparticles, thus resulting in an unwanted reduction of their photothermal and photodynamic efficiency due to a drastic alteration of optical properties. Most previously reported experiments were carried out with bulk colloids where different particles were irradiated by different numbers of laser pulses, thus making it difficult to accurately evaluate the laser power photomodification (PM) threshold.

[New approaches for prevention of complications after Lichtenstein surgery].

Objective: To describe the new approaches for prevention of complications after hernia repair.

Material And Methods: We have proposed the method of combined hernia repair including 2 new techniques to prevent complications after Lichtenstein surgery. The results of 100 surgeries over 5 years (2017-2021) for oblique inguinal hernias were analyzed.

Search for the Exotic Meson X(5568) with the Collider Detector at Fermilab.

A search for the exotic meson X(5568) decaying into the B_{s}^{0}π^{±} final state is performed using data corresponding to 9.6  fb^{-1} from pp[over ¯] collisions at sqrt[s]=1960  GeV recorded by the Collider Detector at Fermilab. No evidence for this state is found and an upper limit of 6.