Results 191 to 200 of about 1,914,179 (372)
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
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
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)
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
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
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
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
The Large Proper Motion White Dwarf vA-C216 (=LP9-231) [PDF]
W. F. van Altena
openalex +1 more source