Results 71 to 80 of about 3,033 (224)

Systemic effects of sunlight: 10‐year review of cardiovascular, infection and cancer outcomes

Journal of the European Academy of Dermatology and Venereology, EarlyView.
This review highlights the systemic effects of sunlight and ultraviolet radiation. While UV radiation exposure has known cutaneous risks including photoaging and skin cancer, evidence suggests potential associations with reduced all‐cause mortality, improved infectious disease outcomes and reduced blood pressure.
Jasira A. Ziglar, Rebecca L. Quiñonez, Lydiah Fridah M. Mpyisi, Indermeet Kohli, Yolanda Gilaberte, Henry W. Lim   +5 more
wiley   +1 more source

Reassessing the organic carbon budget in the Murchison meteorite through an extraction–recovery mass‐balance approach

Meteoritics &Planetary Science, EarlyView.
Abstract A substantial fraction of organic carbon in carbonaceous chondrites has long been described as “missing,” reflecting incomplete recovery and limited resolution of operationally defined organic components. Here, we present a quantitative reassessment of the carbon budget in the Murchison meteorite using an integrated extraction–recovery mass ...
Hina Dohi, Minako Hashiguchi, Koichi Mimura   +2 more
wiley   +1 more source

Thin Film Heater for Removable Volatile Protecting Coatings

The Scientific World Journal, 2013
Freshly coated aluminum mirrors have excellent reflectivity at far ultraviolet wavelengths. However, reflectivity rapidly degrades when the mirror surfaces are exposed to atmosphere.
Abid Karim
doaj   +1 more source

Raman analysis of organic refractory materials after energetic processing: Evidence for amorphous carbon on TNOs and comets

Meteoritics &Planetary Science, EarlyView.
Abstract Amorphous carbon (αC) is found in various extraterrestrial particles, including those thought to originate from the outer Solar System. αC can form through two main processes involving C‐rich materials: exposure to energetic charged particles and thermal processing.
M. Germanà, A. Vyjidak, G. A. Baratta, B. M. Giuliano, R. G. Urso, C. Scirè, D. Fulvio, T. Grassi, P. Jusko, P. Caselli, M. E. Palumbo   +10 more
wiley   +1 more source

Massive photinos and ultraviolet astronomy

Physics Letters B, 1982
Abstract The ionisation of hydrogen and helium in the intergalactic medium and of silicon and carbon in galactic halos, including our own, have already tentatively been attributed to photons emitted by decaying neutrinos created in the hot big bang. This hypothesis would require a neutrino mass ∼ 100 eV and a radiative lifetime ∼ 10 27 s.
openaire   +1 more source

Nanoscale space weathering features in mature lunar soil revealed by TEM and APT

Meteoritics &Planetary Science, EarlyView.
Abstract Space weathering significantly alters the optical, chemical, and structural properties of lunar regolith at micro‐ and nanoscales; yet detailed nanoscale variability within individual soils remains underexplored. Here we apply transmission electron microscopy (TEM) and atom probe tomography to four mineral grains (olivine, ilmenite, and two ...
Jennika Greer, Alexander M. Kling, Luke Daly, Dieter Isheim, David N. Seidman, Michelle S. Thompson, Philipp R. Heck   +6 more
wiley   +1 more source

Far-ultraviolet to Far-infrared Spectral Energy Distribution Modeling of the Star Formation History across M31

The Astronomical Journal
Our neighboring galaxy M31 has been recently surveyed at the far- and near-ultraviolet (FUV and NUV) with the UVIT telescope on AstroSat, which provides unprecedented sensitivity to young stellar populations.
Denis A. Leahy, Jakob Hansen, Andrew M. Hopkins   +2 more
doaj   +1 more source

Methods for substituting onsite ambient ultraviolet radiation measurements for personal exposure studies

Photochemistry and Photobiology, EarlyView.
Three methods for substituting on‐site ambient ultraviolet radiation measurements for personal exposure measurements were investigated. Assuming spatial persistency of measurements from high‐grade instruments delivers lowest uncertainties up to distances of 82 km.
F. Lubitz, S. Helletzgruber, H. Danhel, D. Radmanovac, A. Dzwonek, E. Kitz, P. Weihs, A. W. Schmalwieser   +7 more
wiley   +1 more source

Spin–orbit torque-assisted switching in magnetic insulator thin films with perpendicular magnetic anisotropy

Nature Communications, 2016
By virtue of strong spin-orbit coupling, a current-carrying heavy metal may generate a torque on the magnetization of an interfaced ferromagnetic metal.
Peng Li, Tao Liu, Houchen Chang, Alan Kalitsov, Wei Zhang, Gyorgy Csaba, Wei Li, Daniel Richardson, August DeMann, Gaurab Rimal, Himadri Dey, J. S. Jiang, Wolfgang Porod, Stuart B. Field, Jinke Tang, Mario C. Marconi, Axel Hoffmann, Oleg Mryasov, Mingzhong Wu   +18 more
doaj   +1 more source

Anomalous Emission from Li- and Na-like Ions in the Corona Heated via Alfvén Waves

The Astrophysical Journal
The solar ultraviolet intensities of spectral lines originating from Li- and Na-like ions have been observed to surpass the expectations derived from plasmas with coronal approximation.
Takuma Matsumoto
doaj   +1 more source