Results 81 to 90 of about 3,423,079 (298)

Nanosecond ablation of alumina with an ytterbium fibre-laser: experimental study, topography and damage evaluation [PDF]

open access: yes, 2014
Dissertação (mestrado) - Universidade Federal de Santa Catarina, Programa de Pós-Graduação em Ciência e Engenharia de Materiais, Florianópolis, 2014.Abstract : The use of advanced ceramics has been limited by the high machining costs, with grinding and ...
Gomes, Diego Ribas
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

Research on dynamic ablative behavior of contact during breaking of DC circuit breaker

open access: yesAIP Advances
During the circuit breaker’s breaking process, an arc is generated, which exerts an ablative effect on the contacts and significantly impacts the electrical life of the circuit breaker.
Ze Guo   +4 more
doaj   +1 more source

Missing pouches in high‐density mapping of atrial tachyarrhythmia in congenital heart diseases

open access: yesJournal of Arrhythmia, 2019
Background The use of high‐density electroanatomical mapping in the Chinese population for congenital heart disease (CHD) is not well reported. Methods Retrospective review of consecutive transcatheter ablation of atrial tachyarrhythmia using high ...
Sit‐Yee Kwok   +5 more
doaj   +1 more source

Diversity and complexity in neural organoids

open access: yesFEBS Letters, EarlyView.
Neural organoid research aims to expand genetic diversity on one side and increase tissue complexity on the other. Chimeroids integrate multiple donor genomes within single organoids. Self‐organising multi‐identity organoids, exogenous cell seeding, or enforced assembly of region‐specific organoids contribute to tissue complexity.
Ilaria Chiaradia, Madeline A. Lancaster
wiley   +1 more source

The human gut microbiome across the life course

open access: yesFEBS Letters, EarlyView.
Despite significant individual variation and continuous change throughout life, the human gut microbiome follows some life stage‐specific trends. This article provides a brief overview of how gut microbiome composition shifts across different phases of life. Created in BioRender. Özkurt, E. (2026) https://BioRender.com/8q4nrnc.
Alise J. Ponsero   +4 more
wiley   +1 more source

Preparation of SiC/TiC composite ceramics by precursor conversion method and their oxy-propane ablation behavior at 1600 ℃

open access: yesJournal of Aeronautical Materials
To address the issues of volatile oxide scale and insufficient oxidation/ablation resistance of monolithic SiC ceramics in extreme environments,this study employs polysiloxane as a ceramic precursor and titanium acetylacetonate (TiO(acac)2) as a modifier.
CAO Yongbo   +4 more
doaj   +1 more source

Conditional cell ablation by stringent tetracycline-dependent regulation of barnase in mammalian cells [PDF]

open access: yes, 2001
Leuchtenberger S, Perz A, Gatz C, Bartsch JW. Conditional cell ablation by stringent tetracycline-dependent regulation of barnase in mammalian cells. Nucleic Acids Research.
Gatz, Christiane   +10 more
core   +1 more source

Degradation mechanism of the von Willebrand factor A2 domain by nattokinase

open access: yesFEBS Letters, EarlyView.
Nattokinase, a natto‐derived protease, exhibits potent antithrombotic effects. This study demonstrates that nattokinase directly cleaves the von Willebrand factor (vWF) A2 domain in vitro. Unlike the native regulator ADAMTS13, nattokinase degrades folded vWF independently of shear stress.
Ryuichi Hyakumoto   +3 more
wiley   +1 more source

Modeling of pulsed laser ablation of aluminum under the action of infrared nanosecond laser pulses

open access: yesEPJ Web of Conferences, 2019
The paper presents the results of numerical simulation of aluminum ablation process that is caused by a series of incident nanosecond pulses on a wavelength λ=1064 nm. The mechanism of normal evaporation and the effect of plasma shielding were taken into
Rubtsov Nikolay   +2 more
doaj   +1 more source

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