ultraviolet light
Effect of ultraviolet light on mood, depressive disorders and well-being
... UV light, 4 examined the effect of sunlight on mood on sub- jects while staying indoors (no direct contact of ultraviolet light to skin or eyes), 4 did not measure mood variables but preference for ...
10
Analysis of Using Ultraviolet Light to Test Color Mothball
... with light test is to determine how much the color will fade when exposed to a known ultraviolet light ...of light fastness with Kubel- ka-Munk equation and color spaces of CIE Lab & CIE ...
12
Postharvest Ultraviolet Light Treatment of Fresh Berries for Improving Quality and Safety
... recalls. Ultraviolet light is a promising sanitation technology to enhance food safety in produce ...germicidal ultraviolet in fresh produce in general and berries in ...of ultraviolet ...
12
Analysis of tumor necrosis factor promoter responses to ultraviolet light
... macrophages. These observations suggest that the TNF gene (and/or its mRNA product) responds to signals elicited by UV light. To identify transcriptional UV response elements within the TNF promoter, and to ...
8
ULTRAVIOLET LIGHT INDUCED MUTATION AND DEOXYRIBONUCLEIC ACID REPLICATION IN BACTERIA
... The data of DOUDNEY and YOUNG (1962) would suggest that the RNA synthesis (or specific enzymatic activity) involved is restricted to the specific region of damage of the[r] ...
14
Formation of Secondary Organic Aerosols by Germicidal Ultraviolet Light
... particulate matter (PM2.5) size range was measured, and significant levels of particle formation 17.. were observed for UV exposure periods of as short as 5 minutes.[r] ...
8
Pulsed ultraviolet light decontamination of artificially-generated microbiological aerosols
... UV-rich light emitted from a xenon-filled ...UV-rich light (P=<0.0002). Inactivation using continuous UV light was also investigated in order to quantify the comparative efficacy of these ...
5
Torsional motion of the chromophore catechol following the absorption of ultraviolet light
... Following photoexcitation from the planar S0 ground state, a coherent superposition of one and two quanta in the O–H torsional mode creates a vibrational wave packet in the nonplanar exc[r] ...
6
Power scaling of an extreme ultraviolet light source for future lithography
... For 256 consecutive discharge pulses, the discharge voltage and the in-band EUV energy are measured for every pulse separately. The measured values of only the second pulses of the double pulse are averaged, giving EUV ...
15
MUTANTS OF YEAST DEFECTIVE IN MUTATION INDUCED BY ULTRAVIOLET LIGHT
... it is not ochre suppressible and it complements other arg4 alleles (MORTIMER, personal communication). UV dose in REV and reu haploid strains.. REV segregants exhibited UV re[r] ...
13
Cockayne Syndrome: A Cellular Sensitivity to Ultraviolet Light
... The cellular UV light sensitivity and lack of x-ray sensitivity is a characteristic these cells share with xeroderma pigmentosum cells.35 However, the Cockayne cells differ in that they [r] ...
7
Bumblebee search time without ultraviolet light
... The colour hexagon has a built-in assumption of adaptation to the background stimulus that simulates von Kries colour constancy. However, the von Kries model of colour constancy does not predict a perfect colour ...
6
Ultraviolet Light: A Hazard to Children
... uncomfortable light and heat, they should be moved under a tree, umbrella, or the stroller canopy, although on reflective surfaces an umbrella or canopy may reduce UVR exposure by only ...
8
THE EFFECT OF ULTRAVIOLET LIGHT ON RECOMBINATION IN YEAST
... The frequency of homozygosis of individual genes on diff went chromosomes shows no correlation with centromere linkage, a result which would be expected on the basis of crossing [r] ...
16
SENSITIVITY OF MEIOTIC YEAST CELLS TO ULTRAVIOLET LIGHT
... An increase in viability was obtained when irradiated cells were exposed (on the plates) to photoreactivating light immediately after the irradiation, but not when the exposure [r] ...
11
Shape Evolution of Hierarchical W18O49 Nanostructures: A Systematic Investigation of the Growth Mechanism, Properties and Morphology-Dependent Photocatalytic Activities
... without light irradiation are shown in Figure ...irradiation light causes the small arc radius for all samples, meaning an effective separation of photogenerated electron-hole pairs ...under ...
13
Heterogeneous Photocatalysis in Wastewater Treatment-A Review
... Heterogeneous photocatalysis is a low-cost, sustainable and environment friendly advanced oxidation process. It is a process in which highly oxidative OH* free radicals are produced due to the oxidation and reduction ...
5
MEDICAL APPLICATION OF ELECTROMAGNETIC WAVES
... of photons travelling in waves. The quantum theory is based on the fact that electromagnetic waves consist of discrete “packets” of electromagnetic radiation, called protons, which have neither mass nor charge and have ...
9
Applying the mutation of Bacillus subtilis and the optimization of feather fermentation medium to improve Keratinase activity
... the ultraviolet ray produced by ultraviolet light and the compound mutation of sodium nitrite solution, a mutated strain was produced which can yield Kerati- nase with a high ...
6
Evaluation of some plant extracts on mycelial growth and sporulation density of fungal pathogens of groundnut (arachis hypogaea l ) in vitro
... and ultraviolet light-sterilized aqueous extracts of Tithonia diversifolia, Chromolaena odorata and Tridax procumbens on mycelial growth and sporulation density of fungal pathogens were also determined in ...
7