Results 21 to 30 of about 127,759 (346)

Sunscreens: Time to think beyond UV rays

Pigment International, 2018
It has been known to us that solar radiation contributes to photoaging. Until recently, it was thought to be due to ultraviolet rays alone. However, a growing number of evidence confirms that visible and infrared (IR) rays also contribute to extrinsic ...
Chitralekha Keisham, Nelson Elangbam, Rashmi Sarkar   +2 more
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

Correlated X-ray/UV/optical emission and short term variability in a Seyfert 1 galaxy NGC 4593

, 2017
We present a detailed multi-frequency analysis of an intense monitoring programme of Seyfert 1 galaxy NGC 4593 over a duration of nearly for a month with Swift observatory. We used 185 pointings to study the variability in six ultraviolet/optical and two
Naik, Sachindra, Pal, Main
core   +1 more source

Mass-loss rates for transiting exoplanets

, 2011
Exoplanets at small orbital distances from their host stars are submitted to intense levels of energetic radiations, X-rays and extreme ultraviolet (EUV).
Anderson, Anderson, Asplund, Bakos, Bakos, Bakos, Bakos, Bakos, Bakos, Baraffe, Baraffe, Baraffe, Barge, Barros, Batalha, Bonomo, Bordé, Borucki, Bouchy, Bouchy, Bouchy, Bouchy, Brown, Buchhave, Burke, Butler, Cabrera, Cecchi-Pestellini, Charbonneau, Christian, Christiansen, Collier Cameron, Collier-Cameron, D. Ehrenreich, Davis, Deeg, Deleuil, Dunham, Ehrenreich, Ehrenreich, Enoch, Fossati, Fridlund, Gandolfi, García-Muñoz, Gillon, Gillon, Hartman, Hartman, Hartman, Hebb, Hebb, Hellier, Hellier, Hellier, Holman, Holmström, Hébrard, J.-M. Désert, Jackson, Jaritz, Jenkins, Johns-Krull, Joshi, Kashyap, Kipping, Koch, Kovács, Lammer, Lammer, Latham, Latham, Laughlin, Lecavelier des Etangs, Lecavelier des Etangs, Lecavelier des Etangs, Li, Lin, Linsky, Lister, Léger, Maxted, McCullough, Moutou, Moutou, Noyes, Pillitteri, Pont, Poppenhaeger, Pál, Pál, Queloz, Queloz, Queloz, Rauer, Reiners, Sanz-Forcada, Sato, Saumon, Schporer, Simpson, Skillen, Smalley, Snellen, Sozzetti, Stone, Street, Tian, Torres, Torres, Torres, Torres, Valencia, Vidal-Madjar, Vidal-Madjar, Vidal-Madjar, Watson, West, Wilson, Winn, Winn, Wood, Yelle, Yelle   +123 more
core   +1 more source

Panspermia, Past and Present: Astrophysical and Biophysical Conditions for the Dissemination of Life in Space

, 2010
Astronomically, there are viable mechanisms for distributing organic material throughout the Milky Way. Biologically, the destructive effects of ultraviolet light and cosmic rays means that the majority of organisms arrive broken and dead on a new world.
A.A. Sharov, A.D. Panov, A.J. Nicastro, B.C. Clark, C. Mileikowsky, C. Woese, C.E. Cleland, C.T. Russell, D. Warmflash, E. Argyle, E. Rabbow, E. Willerslev, E.V. Koonin, F. Hoyle, F. Hoyle, F.C. Adams, F.H.C. Crick, G. Basri, G. Horneck, G. Horneck, G. Horneck, G. Horneck, G. Horneck, G. Marcy, H. Kuhn, H.D. Mennigman, H.J. Melosh, H.J. Melosh, J. Nagyvary, J. Overmann, J. Parnell, J. Scalo, J. Secker, J.D. Barrow, J.M. Greenberg, J.M. Overduin, J.T. Trevors, J.W. Schopf, K. Dose, K. Dose, L. Spitzer, M. Burchell, M. Burchell, M. Valtonen, M.H. Hart, M.K. Wallis, N. Meyer-Vernet, N.J. Dimmock, P. Weber, P.S. Wesson, P.S. Wesson, P.S. Wesson, P.S. Wesson, Paul S. Wesson, R. Shapiro, R.D. Noetzel, R.E. Dickerson, R.H. Vreeland, R.W. Court, S. Arrhenius, Steering Group, T. Lindahl, W.K. Hartmann, W.L. Nicholson, W.M. Napier, Z.P. Zagorski   +65 more
core   +1 more source

The radio-ultraviolet spectral energy distribution of the jet in 3C273 [PDF]

, 2004
We present deep VLA and HST observations of the large-scale jet in 3C 273 matched to 0.3" resolution. The observed spectra show a significant flattening in the infrared-ultraviolet wavelength range. The jet's emission cannot therefore be assumed to arise
Bahcall, Begelman, Bell, Biretta, Blandford, Blundell, Celotti, Conway, Conway, Foley, Georganopoulos, Greenstein, Guthrie, H.-J. Röser, Harris, Harris, Harris, Heavens, Heinz, Jester, Jester, K. Meisenheimer, Laing, Litvinenko, Marshall, Marshall, Martel, Meisenheimer, Meisenheimer, Meisenheimer, Meisenheimer, Meisenheimer, Meisenheimer, Miley, Neumann, Neumann, Perley, Perlman, Perlman, Perlman, R. Perley, Rieger, Röser, Röser, Röser, Röser, S. Jester, Sambruna, Scarpa, Schreier, Schwartz, Sparks, Stawarz, Tavecchio, Wilson, Wilson, Wilson   +56 more
core   +1 more source

The role of histone modifications in transcription regulation upon DNA damage

FEBS Letters, EarlyView.
This review discusses the critical role of histone modifications in regulating gene expression during the DNA damage response (DDR). By modulating chromatin structure and recruiting repair factors, these post‐translational modifications fine‐tune transcriptional programmes to maintain genomic stability.
Angelina Job Kolady, Siyao Wang
wiley   +1 more source

Developing evidence‐based, cost‐effective P4 cancer medicine for driving innovation in prevention, therapeutics, patient care and reducing healthcare inequalities

Molecular Oncology, EarlyView.
The cancer problem is increasing globally with projections up to the year 2050 showing unfavourable outcomes in terms of incidence and cancer‐related deaths. The main challenges are prevention, improved therapeutics resulting in increased cure rates and enhanced health‐related quality of life.
Ulrik Ringborg, Joachim von Braun, Julio Celis, Anton Berns, Michael Baumann, Tit Albreht, Nancy Abou‐Zeid, Vanderlei Bagnato, Christian Brandts, Chien‐Jen Chen, Massimiliano di Pietro, Manjit Dosanjh, Thomas Dubois, Alexander Eggermont, Angelika Eggert, Ingemar Ernberg, Sara Faithfull, Johannes Förner, Stefan Fröhling, Manuel Heitor, Leroy Hood, Wei Jiang, Bengt Jönsson, Ravi Kannan, Maria Leptin, Su Li, Peter Lindgren, Douglas Lowy, Jun Ma, Alex Markham, Péter Nagy, Simon Oberst, M. Iqbal Parker, Danielle Rodin, Kevin Ryan, Joachim Schüz, Richard Sullivan, Josep Tabernero, Peter Turkson, Oliver Várhelyi, Harold Varmus, Chijie Wang, Elisabete Weiderpass, Nils Wilking   +43 more
wiley   +1 more source

Scenario for adequate cutaneous vitamin D 3 synthesis due to solar radiation in Poland for people with phototype II and III

Przegląd Dermatologiczny, 2016
Introduction. The limited outdoor activity of contemporary people results in deficiency of vitamin D. An adequate vitamin D level cannot be achieved due to random insolation.
Joanna Narbutt, Aleksandra Lesiak, Janusz Krzyścin, Bonawentura Rajewska-Więch   +3 more
doaj   +1 more source