Results 41 to 50 of about 172,722 (314)
Policy &Internet, Volume 14, Issue 4, Page 824-844, December 2022., 2022 Abstract Digital inequality is a critical issue in our knowledge economy. Often digital inequality is framed as a problem that only older people encounter. This rather stereotypical portrayal can result in improvised and unsuccessful policy actions. The goal of the article is to take the experiences of citizens who never or seldom use information and ...
Nicole S. Goedhart +2 more
wiley +1 more source
Rotation in sdB stars as revealed by stellar oscillations
Open Astronomy, 2018 An interesting opportunity offered by the detection of stellar oscillations is the possibility to infer the internal rotation rate of a star through the so-called rotational splittings. Such seismic measurements remained rather scarce for hot B subdwarf (
Charpinet Stephane +5 more
doaj +1 more source
AASLD practice guidance on drug, herbal, and dietary supplement–induced liver injury
, 2022 Hepatology, EarlyView.
Robert J. Fontana +6 more
wiley +1 more source
Journal of Polymer Science, Volume 60, Issue 24, Page 3318-3330, 15 December 2022., 2022 Abstract Poly(lactic acid) (PLA) is a commercially available bio‐based polymer that is a potential alternative to many commodity petrochemical‐based polymers. However, PLA's thermomechanical properties limit its use in many applications. Incorporating polymer‐grafted cellulose nanocrystals (CNCs) is one potential route to improving these mechanical ...
Nicholas Macke +2 more
wiley +1 more source
Permafrost and Periglacial Processes, Volume 34, Issue 1, Page 22-36, January/March 2023., 2023 Abstract Current climate change in the Arctic is unprecedented in the instrumental record, with profound consequences for the environment and landscape. In Arctic Sweden, aeolian sand dunes have been impacted by climatic changes since their initial formation after the retreat of the last glacial ice sheet.
Melanie Stammler +2 more
wiley +1 more source
White Dwarf Sequences in Dense Star Clusters [PDF]
Astrophys.J. 589 (2003) 179-198, 2003 We use the results of realistic N-body simulations to investigate the appearance of the white dwarf population in dense star clusters. We show that the presence of a substantial binary population in a star cluster, and the interaction of this population with the cluster environment, has serious consequences for the morphology of the observed white ...
arxiv +1 more source
Evolution models of helium white dwarf--main-sequence star merger remnants: the mass distribution of single low-mass white dwarfs [PDF]
, 2017 It is not known how single white dwarfs with masses less than 0.5Msolar -- low-mass white dwarfs -- are formed. One way in which such a white dwarf might be formed is after the merger of a helium-core white dwarf with a main-sequence star that produces a red giant branch star and fails to ignite helium. We use a stellar-evolution code to compute models
arxiv +1 more source
Advanced Photonics Research, EarlyView.The necessity and feasibility of enhancing light outcoupling in perovskite light‐emitting diodes (PeLEDs) is highlighted. On near‐IR PeLEDs, low‐cost, micro‐textured light management (LM) foils demonstrate boost in light extraction. Optimizing perovskite thickness and the optical cavity in synergy with LM foils is crucial for maximizing performance ...
Milan Kovačič +3 more
wiley +1 more source
Stellar Archeology: What White Dwarf Stars Tell Us About the History of the Galaxy [PDF]
Journal of Astronomy and Space Sciences, 2012 White dwarf stars have played important roles in rather diverse areas of astrophysics. This paper outlines how these stellar remnants, especially those in widely separated “fragile” binaries, have provided unique leverage on difficult astrophysical ...
Terry D. Oswalt
doaj +1 more source
New white dwarf stars in the Sloan Digital Sky Survey Data Release 10 [PDF]
, 2014 We report the discovery of 9 089 new spectroscopically confirmed white dwarfs and subdwarfs in the Sloan Digital Sky Survey Data Release 10. We obtain Teff, log g and mass for hydrogen atmosphere white dwarf stars (DAs) and helium atmosphere white dwarf stars (DBs), and estimate the calcium/helium abundances for the white dwarf stars with metallic ...
arxiv +1 more source