Results 51 to 60 of about 69,486 (315)

White Dwarfs and Dark Matter [PDF]

open access: yesScience, 2001
Accepted for publication as a Technical Comment in Science, in response to Oppenheimer et al. (2001, Science, 292, 698)
Gibson, B. K., Flynn, Chris
openaire   +5 more sources

AASLD practice guidance on drug, herbal, and dietary supplement–induced liver injury

open access: yes, 2022
Hepatology, EarlyView.
Robert J. Fontana   +6 more
wiley   +1 more source

A systematic review of obesity as a barrier to accessing cancer screening services

open access: yesObesity Science &Practice, Volume 8, Issue 6, Page 715-727, December 2022., 2022
Abstract Introduction Obesity is a known risk factor for the development of cancers, and a significant proportion of the population may be at risk of developing cancer owing to their weight status. There is acknowledged societal stigma towards people living with obesity, which can influence health behaviors and deter help seeking, such as cancer ...
Yitka Graham   +5 more
wiley   +1 more source

A consistency test of white dwarf and main sequence ages: NGC 6791

open access: yesEPJ Web of Conferences, 2013
NGC 6791 is an open cluster that it is so close to us that can be imaged down to very faint luminosities. The main sequence turn-off age (∼8 Gyr) and the age derived from the cut-off of the white dwarf luminosity function (∼6 Gyr) were found to be ...
Córsico A.H.   +5 more
doaj   +1 more source

A population synthesis study of the luminosity function of hot white dwarfs [PDF]

open access: yes, 2014
We present a coherent and detailed Monte Carlo simulation of the population of hot white dwarfs. We assess the statistical significance of the hot end of the white dwarf luminosity function and the role played by the bolometric corrections of hydrogen-rich white dwarfs at high effective temperatures.
arxiv   +1 more source

Features of the mass transfer in magnetic cataclysmic variables with fast-rotating white dwarfs

open access: yesEPJ Web of Conferences, 2014
The flow structure in magnetic cataclysmic variables was investigated taking into account the effects of strong magnetic field and fast rotation of the white dwarf. We modeled the AE Aqr system as a unique object that has the rotation period of the white
Isakova Polina   +2 more
doaj   +1 more source

Improving Light Outcoupling and Addressing Measurement Specifics in Perovskite Light‐Emitting Diodes with Light Management Foils

open access: yesAdvanced 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

Evolution models of helium white dwarf--main-sequence star merger remnants: the mass distribution of single low-mass white dwarfs [PDF]

open access: yes, 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

Gaiaphotometry for white dwarfs [PDF]

open access: yesAstronomy & Astrophysics, 2014
Context. White dwarfs can be used to study the structure and evolution of the Galaxy by analysing their luminosity function and initial mass function. Among them, the very cool white dwarfs provide the information for the early ages of each population.
Piotr M. Kowalski   +8 more
openaire   +8 more sources

The Awakening Brain is Characterized by a Widespread and Spatiotemporally Heterogeneous Increase in High Frequencies

open access: yesAdvanced Science, EarlyView.
This work explores the process of morning awakening of the human brain using polysomnography paired with simultaneous stereo‐electroencephalography, a method that provides high spatial and temporal resolution for examining brain activity. Awakening is characterized by an increase in high‐frequency spectral power and connectivity.
Tamir Avigdor   +5 more
wiley   +1 more source

Home - About - Disclaimer - Privacy