Results 21 to 30 of about 1,023,245 (285)

On Quantum Field Theory with Nonzero Minimal Uncertainties in Positions and Momenta [PDF]

open access: yes, 1996
We continue studies on quantum field theories on noncommutative geometric spaces, focusing on classes of noncommutative geometries which imply ultraviolet and infrared modifications in the form of nonzero minimal uncertainties in positions and momenta ...
Achim Kempf   +6 more
core   +2 more sources

Pulsed Broad-Spectrum UV Light Effectively Inactivates SARS-CoV-2 on Multiple Surfaces and N95 Material

open access: yesViruses, 2021
The ongoing SARS-CoV-2 pandemic has resulted in an increased need for technologies capable of efficiently disinfecting public spaces as well as personal protective equipment. UV light disinfection is a well-established method for inactivating respiratory
Alexander S. Jureka   +2 more
doaj   +1 more source

Features of Oil Spills Monitoring on the Water Surface by the Russian Federation in the Arctic Region

open access: yesJournal of Marine Science and Engineering, 2023
Given that the recent rapid growth of offshore production, especially in the Arctic region of the Russian Federation, is causing increased concern about oil spills on the water surface, this issue is especially relevant and important today.
Artem Alekseevich Khalturin   +2 more
doaj   +1 more source

Wnt Genes in Wing Pattern Development of Coliadinae Butterflies

open access: yesFrontiers in Ecology and Evolution, 2020
Wnt genes are major developmental genes highly conserved across all animals. Yet, our understanding of the Wnt gene repertoire and their functions is still largely incomplete.
Jennifer Fenner   +11 more
doaj   +1 more source

DNA Damage Response Differentially Affects BoHV-1 Gene Transcription in Cell Type-Dependent Manners

open access: yesBiomedicines, 2022
Bovine herpesvirus 1 (BoHV-1), an important pathogen of cattle, is also a promising oncolytic virus. Recent studies have demonstrated that the virus infection induces DNA damage and DNA damage response (DDR), potentially accounting for virus infection ...
Linke Tang   +4 more
doaj   +1 more source

Characteristic Study of Non-Line-of-Sight Scattering Ultraviolet Communication System at Small Elevation Angle

open access: yesPhotonics, 2022
Ultraviolet (UV) communication is considered an effective complement to traditional wireless communication. However, the scattering models of existing non-line-of-sight (NLOS) UV, which are complex, are difficult to combine with the test.
Axin Du   +5 more
doaj   +1 more source

Spectral Observation of Solar Photosynthetically Active Radiation on Clear Days in Qinghai-Xizang Plateau

open access: yesGaoyuan qixiang
Photosynthetically Active Radiation (PAR) spectrum, in visible light, is the wavelength range sensitive to plants and can be absorbed by them for photosynthesis.The characteristics of ground PAR spectrum directly affect the growth, development ...
Min SHENG   +6 more
doaj   +1 more source

THE PERMEABILITY OF THE SCLERAL TISSUE FOR ULTRAVIOLET A IN THE EXPERIMENT

open access: yesOftalʹmologiâ, 2017
Purpose: to evaluate the permeability of the scleral tissue for ultraviolet A (UVA).Materials and Methods. The study was conducted on 15 cadaver porcine eyes. Rectangular scleral flap 12*15 mm was cut out from each eyeball.
M. M. Bikbov   +5 more
doaj   +1 more source

Enhancing Light Extraction Efficiency of Vertical Emission of AlGaN Nanowire Light Emitting Diodes With Photonic Crystal

open access: yesIEEE Photonics Journal, 2019
AlGaN alloys have been widely used to make ultraviolet light-emitting diodes (UV-LEDs) because its energy bandgap covers 200–360 nm wavelength range.
Pengwei Du, Zhiyuan Cheng
doaj   +1 more source

Laser-stimulated fluorescence reveals unseen details in fossils from the Upper Jurassic Solnhofen Limestones

open access: yesRoyal Society Open Science, 2021
Laser-stimulated fluorescence (LSF) has seen increased use in palaeontological investigations in recent years. The method uses the high flux of laser light of visible wavelengths to reveal details sometimes missed by traditional long-wave ultraviolet (UV)
Luke A. Barlow   +4 more
doaj   +1 more source

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