Results 191 to 200 of about 1,914,179 (372)

Hot White Dwarfs

open access: yes, 2011
The article covers the physical properties and evolution of single white dwarfs ranging in temperature from 20,000K to 200,000 and higher, the hottest know electron-degenerate stars. After discussing the classification of their spectra, the author reviews the known properties, parameters, evolutionary state, as well as persisting and new puzzles ...
openaire   +3 more sources

Characterization of faculty practice evaluation processes within US schools of pharmacy

open access: yesJACCP: JOURNAL OF THE AMERICAN COLLEGE OF CLINICAL PHARMACY, EarlyView.
Abstract Introduction A prior study found that less than half of colleges/schools of pharmacy had policies and procedures for evaluating practice faculty roles. A 2017 Delphi consensus provided recommendations for formal evaluation mechanisms. This study aims to determine the implementation of key recommendations from the consensus paper at colleges ...
Mojdeh S. Heavner   +4 more
wiley   +1 more source

Investigating the reasons behind a later or missed diagnosis of attention‐deficit/hyperactivity disorder in young people: A population cohort study

open access: yesJCPP Advances, EarlyView.
Abstract Background Attention Deficit Hyperactivity Disorder (ADHD) is a common neurodevelopmental condition, more often diagnosed in males. In many individuals, particularly females, ADHD is diagnosed later or missed, the reasons for this are not fully understood.
Isabella Barclay   +7 more
wiley   +1 more source

A Middle and Late Devensian sequence from the northern part of Kents Cavern (Devon, UK)

open access: yesJournal of Quaternary Science, EarlyView.
Abstract 1920s/30s excavation of a Middle Devensian sequence in the northern part of Kents Cavern recovered important Late Middle and Early Upper Palaeolithic archaeological material, including Britain's oldest known Homo sapiens remains. Questions remain about this material, including how it came to be in the cave.
Rob Dinnis   +11 more
wiley   +1 more source

The Impact of Breathing Pulses during Core Helium Burning on the Core Chemical Structure and Pulsations of Hydrogen-rich Atmosphere White Dwarfs

open access: yesThe Astrophysical Journal
Breathing pulses are mixing episodes that could develop during the core helium-burning phase of low- and intermediate-mass stars. The occurrence of breathing pulses is expected to bear consequences on the formation and evolution of white dwarfs ...
Alejandro H. Córsico   +1 more
doaj   +1 more source

Vegetation and environmental dynamics in the central part of the Kola Peninsula during the past 13.3 ka as reflected by ancient plant DNA on sediments from Lake Imandra

open access: yesJournal of Quaternary Science, EarlyView.
ABSTRACT The first high‐resolution reconstruction of the vegetation and environmental changes during the last ca 13 300 cal a BP in the central part of the Kola Peninsula (NW Russia) was reconstructed based on sedimentary ancient DNA (sedaDNA) metabarcoding on sediment core Co1410 from Lake Imandra.
Anastasia Poliakova   +5 more
wiley   +1 more source

A Short Intense Dynamo at the Onset of Crystallization in White Dwarfs

open access: yesThe Astrophysical Journal Letters
The origin of large magnetic fields (≳10 ^6 G) in isolated white dwarfs is not clear. One possible explanation is that crystallization of the star’s core drives compositional convection, which when combined with the star’s rotation, can drive a dynamo ...
J. R. Fuentes   +2 more
doaj   +1 more source

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