Results 21 to 30 of about 80,730 (306)

Labisia pumila extract protects skin cells from photoaging caused by UVB irradiation [PDF]

open access: yes, 2010
Labisia pumila (Myrsinaceae), known as "Kacip Fatimah," has been used by many generations of Malay women to induce and facilitate child birth as well as a post partum medicine. However, its topical application on skin has not been reported yet.
Choi, Hyun-kyung   +5 more
core   +1 more source

Experience of using an excimer lamp equipped with UVB dose control system in dermatology

open access: yesBiomedical Photonics, 2020
Intermediate ultraviolet (UVB) therapy is considered a relatively safe method of treating skin diseases with an autoimmune component in development compared to medical drug methods, including PUVA therapy. This is due to the small depth of penetration of
D. V. Schitz   +3 more
doaj   +1 more source

Equine sarcoids: Bovine Papillomavirus type 1 transformed fibroblasts are sensitive to cisplatin and UVB induced apoptosis and show aberrant expression of p53 [PDF]

open access: yes, 2012
Bovine papillomavirus type 1 infects not only cattle but also equids and is a causative factor in the pathogenesis of commonly occurring equine sarcoid tumours.
Campo, M.   +4 more
core   +3 more sources

Implications of an updated ultraviolet background for the ionization mechanisms of intervening Ne VIII absorbers [PDF]

open access: yes, 2016
Ne VIII absorbers seen in QSO spectra are useful tracers of warm ionized gas, when collisional ionization is the dominant ionization process. While photoionization by the ultraviolet background (UVB) is a viable option, it tends to predict large line-of ...
Hussain, Tanvir   +4 more
core   +3 more sources

Photolyzable Polymer Brushes: Subtractive 3D Structuring of Surfaces Using Water and Light

open access: yesAngewandte Chemie, EarlyView.
Facile structuring of polymer brushes is achieved by flipping the process from controlled growth to controlled brush photolysis. Using surface‐initiated radical ring‐opening polymerization of cyclic monomers with photocleavable cyclobutane rings, photodegradable targets are embedded into the polymer chains. The enabled continuous subtractive patterning
Henrik Kalmer   +11 more
wiley   +2 more sources

Platelet-Activating Factor-Induced Reduction in Contact Hypersensitivity Responses Is Mediated by Mast Cells via Cyclooxygenase-2-Dependent Mechanisms [PDF]

open access: yes, 2018
Platelet-activating factor (PAF) stimulates numerous cell types via activation of the G protein-coupled PAF receptor (PAFR). PAFR activation not only induces acute proinflammatory responses, but it also induces delayed systemic immunosuppressive effects ...
FitzGerald, Garret A.   +6 more
core   +1 more source

Testing of resveratrol microemulsion photostability and protective effect against UV induced oxidative stress

open access: yesActa Pharmaceutica, 2017
Resveratrol is well known for its antioxidant activity and susceptibility to ultraviolet radiation. Development of formulations providing improved stability and relevant drug delivery of resveratrol is still a challenging task.
Juškaitė Vaida   +2 more
doaj   +1 more source

Deterioration rate of renewable polyurethanes composites prior to ultra violet irradiation exposure [PDF]

open access: yes, 2019
Polyurethanes (PU's) made from renewable and sustainable materials are one of the most important groups of polymers because of their versatility with wide range of grades, densities and stiffness.
Abdullah, Nur Munirah   +1 more
core   +1 more source

The depletion of gas in high-redshift dwarf galaxies from an inhomogeneous reionization [PDF]

open access: yes, 2013
The reionization of the intergalactic medium (IGM) was likely inhomogeneous and extended. By heating the IGM and photo-evaporating gas from the outskirts of galaxies, this process can have a dramatic impact on the growth of structures.
Mesinger, Andrei, Sobacchi, Emanuele
core   +1 more source

UVB solar radiation climatology for Mexico

open access: yesGeofísica Internacional, 2013
La medición de la radiación solar ultravioleta B de banda (UVB) debe considerarse como una prioridad debido a las implicaciones de este tipo de radiación en la salud pública en todo el país (población nacional total, 108 millones), pero esto no se lleva ...
Mauro Valdés-Barrón   +5 more
doaj   +1 more source

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