Results 111 to 120 of about 2,439,137 (360)

Promieniowanie słoneczne a witamina D i nowotwory skóry

open access: yesStudia Ecologiae et Bioethicae, 2008
Solar radiation is a part of the environment of man. Ultraviolet В radiation in required for the biosynthesis of vitamin D, which is generally associated with calcium metabolism and significantly influences a wide range of metabolic systems, therefore ...
Grażyna Nowicka
doaj   +1 more source

Molecular Mechanisms of Ultraviolet Radiation-Induced DNA Damage and Repair

open access: yesJournal of Nucleic Acids, 2010
DNA is one of the prime molecules, and its stability is of utmost importance for proper functioning and existence of all living systems. Genotoxic chemicals and radiations exert adverse effects on genome stability.
R. P. Rastogi   +4 more
semanticscholar   +1 more source

Wavelength‐Dependent Differential Amplification of Raman Scattering by Chiral Gold Nanorods for Multiplexed Encoding

open access: yesAdvanced Functional Materials, EarlyView.
The SERS spectra of reporter molecules adsorbed on chiral gold nanorods depends on the handedness of circularly polarized light (CPL‐SERS). The bisignate plasmonic CD spectra of chiral nanorods provides wavelength‐dependent CPL‐SERS. Selective discrimination of chiral nanorod handedness and different Raman reporters allow highly sensitive codification ...
Andrés Serrano‐Freijeiro   +9 more
wiley   +1 more source

Demethoxycurcumin in combination with ultraviolet radiation B induces apoptosis through the mitochondrial pathway and caspase activation in A431 and HaCaT cells

open access: yesTumor Biology, 2017
Photodynamic therapy is widely used in the clinical treatment of tumors, especially skin cancers. It has been reported that the photosensitizer curcumin, in combination with ultraviolet radiation B, induces HaCaT cell apoptosis, and this effect may be ...
Yong Xin   +5 more
doaj   +1 more source

Changes in physico-chemical properties of milk under ultraviolet radiation

open access: yesFoods and Raw Materials, 2019
The use of ultraviolet radiation in the treatment of milk and other liquid foods is a very promising field of study since it reduces their bacterial load.
Vladimir D. Kharitonov   +4 more
doaj   +1 more source

Demonstration of an All‐Optical AND Gate Mediated by Photochromic Molecules

open access: yesAdvanced Functional Materials, EarlyView.
A logic AND gate that runs on photons is demonstrated. It relies on two spatially separated photochromic molecules that work in tandem. Abstract The realization of a photonic logic AND gate, i.e. a logic AND gate that runs on photons rather than electrons, and where all steps are controlled by light, is demonstrated. In a proof‐of‐principle experiment,
Heyou Zhang   +7 more
wiley   +1 more source

The space environment - 100 to 500 kilometers [PDF]

open access: yes
Aeronomy study of nitrogen ultraviolet radiation from IBC 3 ...
Green, A. E. S.
core   +1 more source

Laser‐Induced Graphene from Waste Almond Shells

open access: yesAdvanced Functional Materials, EarlyView.
Almond shells, an abundant agricultural by‐product, are repurposed to create a fully bioderived almond shell/chitosan composite (ASC) degradable in soil. ASC is converted into laser‐induced graphene (LIG) by laser scribing and proposed as a substrate for transient electronics.
Yulia Steksova   +9 more
wiley   +1 more source

The effect of carotenoids of Rhodotorula glutinis and probiotic of Lactobacillus acidophilus on some physiological and histological variables of the pancreas and liver in male rats exposed to ultraviolet radiation.

open access: yesTikrit Journal for Agricultural Sciences
This study was conducted in the laboratory animal house at the College of Education/University of Samarra to establish and evaluate and treatment the effect of ultraviolet radiation (UV) on the health and functions of the pancreas and liver by use the ...
Wijdan I.A. Abd-alwahab   +3 more
doaj   +1 more source

Home - About - Disclaimer - Privacy