Results 91 to 100 of about 12,795,735 (305)

Imaging the environmental ultraviolet [PDF]

open access: yes, 2008
A technique has been developed to visually represent measured environmental ultraviolet radiation using a digital photograph and measurements of the UV and visible light intensity.
Parisi, A. V., Downs, N. J.
core   +1 more source

Comparative Study between Ultraviolet-B Phototherapy Alone and Ultraviolet-B  Phototherapy with Topical Tacrolimus in the Treatment of Vitiligo

open access: yesPakistan Armed Forces Medical Journal
Objective: To compare the combined effect of Ultraviolet-B plus Tacrolimus Vs Ultraviolet-B alone in the treatment of Vitiligo. Study Design: Randomized-controlled trial (ClinicalTrials.gov: NCT05577637).
Rohida Rahmat   +5 more
doaj   +1 more source

A Randomized Controlled Trial with a Medical Device Containing Sodium Hyaluronate and Nicotinic Acid to Increase the Efficacy of Ultraviolet Phototherapy in Psoriasis

open access: yesDermatology and Therapy, 2020
Introduction The dry and scaly skin of psoriatic patients decreases the efficacy of ultraviolet B (UVB) phototherapy. Different agents are used to facilitate the transmission of light, but most of these preparations are cosmetically unfavorable.
Balázs Bende   +7 more
doaj   +1 more source

Structural and biochemical insights into the thermostable esterase Ta0887 from Thermoplasma acidophilum

open access: yesFEBS Open Bio, EarlyView.
In this study, a novel esterase from the thermoacidophilic archaeon Thermoplasma acidophilum was biochemically and structurally characterized. Our results demonstrate that Ta0887 is a highly thermostable esterase that preferentially hydrolyzes p‐nitrophenyl hexanoate and possesses an α‐helical cap domain that likely contributes to its substrate ...
Alejandro Delgado‐Rey   +4 more
wiley   +1 more source

Upper-Room Ultraviolet Light and Negative Air Ionization to Prevent Tuberculosis Transmission [PDF]

open access: yes, 2009
Background Institutional tuberculosis (TB) transmission is an important public health problem highlighted by the HIV/AIDS pandemic and the emergence of multidrug- and extensively drug-resistant TB.
Ticona, E.   +70 more
core   +2 more sources

Identification and characterization of a gene conferring stress resistance in Escherichia coli and cyanobacteria

open access: yesFEBS Open Bio, EarlyView.
Functional screening identified PcSyn14890, a cyanobacteria‐specific protein that enhances growth and stress resistance in E. coli and Synechocystis PCC6803. Although we expected it to function as a molecular chaperone, it was unable to protect against thermal aggregation of GAPDH.
Akiyo Yamada   +7 more
wiley   +1 more source

UV radiation‐induced peptides in frog skin confer protection against cutaneous photodamage through suppressing MAPK signaling

open access: yesMedComm
Overexposure to ultraviolet light (UV) has become a major dermatological problem since the intensity of ultraviolet radiation is increasing. As an adaption to outside environments, amphibians gained an excellent peptide‐based defense system in their ...
Tingyi Yang   +10 more
doaj   +1 more source

Food allergy is linked to season of birth, sun exposure, and vitamin D deficiency

open access: yesAllergology International, 2019
The season of birth and ultraviolet B exposure have been related to the occurrence of food allergy. The levels of vitamin D produced from skin by ultraviolet B exposure might reflect this relationship. Vitamin D is known to induce antimicrobial peptides,
Teruaki Matsui   +8 more
doaj   +1 more source

Chronobiology of Cancer: How Aging Fuels Oncogenesis at the Molecular Level

open access: yesAging and Cancer, EarlyView.
This graphical abstract illustrates the key biological pathways linking aging with cancer development and progression. In the upper left, cumulative exposure to ultraviolet radiation, toxins, and reactive oxygen species (ROS) causes DNA damage and genomic instability, whereas age‐related decline in repair mechanisms, such as ATM/ATR, BER, and NER ...
Anu Singh, Aroonima Misra, Sufian Zaheer
wiley   +1 more source

Respostas de aclimatação de Acrostichum danaeifolium Langsd. & Fisch. (Polypodiopsida, Pteridaceae) à radiação ultravioleta B [PDF]

open access: yes, 2015
Dissertação (mestrado) - Universidade Federal de Santa Catarina, Centro de Ciências Biológicas, Programa de Pós-Graduação em Biologia de Fungos, Algas e Plantas, Florianópolis, 2015.A destruição da camada de ozônio na estratosfera principalmente pela ...
Fonini, Adriano Moratelli
core  

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