Results 111 to 120 of about 2,375,680 (397)

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

High-temperature-radiation analyzer [PDF]

open access: yes, 1973
Six-channel radiometer with three ultraviolet detection channels measures temperatures at 2-millisecond intervals. One infrared channel measures total radiation, and two infrared channels measure radiation in discrete spectral intervals at rate of 40 ...
Farwell, R. P.
core   +1 more source

Designing of Self‐Dispersing Soft Dendritic Microcleaners for Microplastics Capture and Recovery

open access: yesAdvanced Functional Materials, EarlyView.
The capture and recovery of microplastics from open aquatic systems is a complex problem, which necessitates nontrivial solutions. The principles of a comprehensive multistage process based on sustainably sourced microcleaners with hierarchical morphology are demonstrated.
Haeleen Hong   +3 more
wiley   +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

Photoswitchable Conductive Metal–Organic Frameworks

open access: yesAdvanced Functional Materials, EarlyView.
A conductive material where the conductivity can be modulated remotely by irradiation with light is presented. It is based on films of conductive metal–organic framework type Cu3(HHTP)2 with embedded photochromic molecules such as azobenzene, diarylethene, spiropyran, and hexaarylbiimidazole in the pores.
Yidong Liu   +5 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

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

Exploring Electronic States and Ultrafast Electron Dynamics in AlInP Window Layers: The Role of Surface Reconstruction

open access: yesAdvanced Functional Materials, EarlyView.
This study examines the surface characteristics of AlInP (001), crucial for advanced solar cells and photoelectrochemical devices. Using theoretical modeling and experiments, it identifies how phosphorus‐rich and indium‐rich surfaces create mid‐gap states that pin the Fermi level and influence ultrafast electron dynamics.
Mohammad Amin Zare Pour   +11 more
wiley   +1 more source

Solar Ultraviolet Radiation in a Changing Climate

open access: yes, 2014
The projected large increases in damaging ultraviolet radiation as a result of global emissions of ozone-depleting substances have been forestalled by the success of the Montreal Protocol. New challenges are now arising in relation to climate change.
C. Williamson   +13 more
semanticscholar   +1 more source

Research in extreme ultraviolet and far ultraviolet astronomy [PDF]

open access: yes
Instruments designed to explore different aspects of far and extreme ultraviolet cosmic radiation were studied. The far ultraviolet imager (FUVI) was flown on the Aries sounding rocket. Its unique large format 75mm detector mapped out the far ultraviolet
Labov, S. E.
core   +1 more source

Home - About - Disclaimer - Privacy