Results 31 to 40 of about 418,242 (295)

Do the polyphenolic compounds from natural products can protect the skin from ultraviolet rays?

Results in Chemistry, 2022
Excessive exposure to the sun is a major cause that augment the skin cancer, erythema, edema, abnormal pigmentation and finally suppress the immune system.
Sara Ghazi
doaj   +1 more source

Some of the uses of ultra-violet rays in dermatology

South African Journal of Physiotherapy, 1953
No abstract available.
R. M.B MacKenna, T. Wareham
doaj   +1 more source

Potensi Ekstrak Bawang Hitam sebagai Tabir Surya terhadap Paparan Sinar Ultraviolet

Keluwih, 2020
—Skin cancer is in the third rank in Indonesia. One of the causes of skin cancer is excessive exposure to ultraviolet rays from the sun. Ultraviolet radiation forms Reactive Oxygen Species that disrupts the regulation of the cell-matrix and causes ...
Putu Srinata Dampati, Elvina Veronica
doaj   +1 more source

Ultraviolet Rays-Shielding Efficiency of Clothing Materials [PDF]

, 1993
The shielding ability of the ultraviolet rays (UV-ray) through fabrics were inves tigated by the measurement of the transmittance of the UV-ray (the sun' rays) through the fabrics.
チョウチ, キヌヨ, 石橋, 博, 帖地, 絹代, CHOCHI, Kinuyo, ISHIBASHI, Hiroshi, イシバシ, ヒロシ   +5 more
core   +1 more source

Bat eyes have ultraviolet-sensitive cone photoreceptors [PDF]

, 2009
Mammalian retinae have rod photoreceptors for night vision and cone photoreceptors for daylight and colour vision. For colour discrimination, most mammals possess two cone populations with two visual pigments (opsins) that have absorption maxima at short
Josef Ammermüller, Leo Peichl, Ammermüller Josef, Knop Gabriel C., Peichl, Leo, Glösmann, Martin, Brigitte Müller, Müller Brigitte, Hagemann Cornelia, Knop, Gabriel C., Glösmann, M., Hagemann, Cornelia, Knop, G., Ammermüller, J., Glösmann Martin, Müller, B., Hagemann, C., Martin Glösmann, Ammermüller, Josef, Müller, Brigitte, Peichl Leo, Gabriel C Knop, Cornelia Hagemann, Peichl, L.   +23 more
core   +2 more sources

Glasses with a nano-layer coating for ultraviolet blocking, utilizing computer tools, design, and analysis

Journal of the Turkish Chemical Society, Section A: Chemistry
Several designs have been done using computer software. This scientific research involves applying calculations and designing nano-layer software for eyeglass lenses to protect against ultraviolet rays.
Shakir M. Lafta, Amel Naji, Omar Adnan Ibrahim, Omar Abdulsada Ali, Olfat A. Nief   +4 more
doaj   +1 more source

Regulation of the lncRNA NEAT1 by p53‐ΔNp63 crosstalk modulates the DNA damage response and therapeutic efficacy in HNSCC

Molecular Oncology, EarlyView.
In head and neck squamous cell carcinoma (HNSCC) p53 and p63 exert opposite roles on the transcription regulation of the lncRNA NEAT1. Under basal conditions, p53 levels are low and p63 represses NEAT1 expression. Upon genotoxic stress, p53 is rapidly induced, displacing p63 from the NEAT1 promoter leading to NEAT1 transcriptional activation and ...
Sara De Domenico, Veronica La Banca, Silvia D'Amico, Stefano Scalera, Sara Nicolai, Angelo Peschiaroli   +5 more
wiley   +1 more source

Comparison of X-ray and gamma-ray dose-response curves for pink somatic mutations in Tradescantia clone 02 [PDF]

, 1976
Microdosimetric data indicate that the mean specific energy,zeta, produced by individual charged particles from X rays and gamma rays is different for the two radiation qualities by nearly a factor of two.
Mills, R. E., Kellerer, Albrecht M., Sparrow, A. H., Underbring, A. G.   +3 more
core   +1 more source

A light‐triggered Time‐Resolved X‐ray Solution Scattering (TR‐XSS) workflow with application to protein conformational dynamics

FEBS Open Bio, EarlyView.
Time‐resolved X‐ray solution scattering captures how proteins change shape in real time under near‐native conditions. This article presents a practical workflow for light‐triggered TR‐XSS experiments, from data collection to structural refinement. Using a calcium‐transporting membrane protein as an example, the approach can be broadly applied to study ...
Fatemeh Sabzian‐Molaei, Fredrik Orädd, Konstantinos Magkakis, Magnus Andersson   +3 more
wiley   +1 more source

On the Ultraviolet Rays.

JOURNAL OF THE ILLUMINATING ENGINEERING INSTITUTE OF JAPAN, 1928
此の講演は自分の研究の結果を發表したのではなく, 今日まで多くの人々によつて研究された事柄を目次に示すやうに分類し, 紫外線の呈する多くの作用を述べ, それが實際上如何なる方面に應用されて居るかを解説したものである。日光は保健上有効であると云ふことは二千年の昔から知られて居たが, それは學術的に根据はなかつた。日光の中に紫外線のあることは十九世紀の始めに發見された。それから漸次日光の中の紫外線が人體に有効であると云ふことが知られ, 紫外線の分量の多い高山に療養所が出來るやうになつた。而して今日では尚張い紫外線を出す人工的の光源を病症治癒のために用ひるやうになつた。既は紫外線の有する殺菌作用及生理的亢進作用に依るのである。又紫外線の有する螢光作用及燐光作用は寳石, 手形 ...
openaire   +2 more sources