Results 111 to 120 of about 5,764,285 (387)
Optics Express, 2014 The star tracker is one of the most promising attitude measurement devices widely used in spacecraft for its high accuracy. High dynamic performance is becoming its major restriction, and requires immediate focus and promotion.
Ting Sun +4 more
semanticscholar +1 more source
Astronomische Nachrichten, 1896 18 new variable stars have been found among a previously published list of M-type stars. Their photographic stellar magnitudes are determined from observations made in 1970 and 1971.
openaire +2 more sources
Taurine promotes glucagon‐like peptide‐1 secretion in enteroendocrine L cells
FEBS Letters, EarlyView.Taurine, a sulfur‐containing amino acid, is likely taken up by enteroendocrine L cells via the taurine transporter. This process increases the levels of cytosolic ATP. The increase in intracellular Ca2+ concentrations and glucagon‐like peptide‐1 secretion through membrane depolarization is caused by the closure of ATP‐sensitive potassium channels ...
Yuri Osuga +6 more
wiley +1 more source
Variability survey of brightest stars in selected OB associations [PDF]
A&A 598, A108 (2017), 2016 The stellar evolution theory of massive stars remains uncalibrated with high-precision photometric observational data mainly due to a small number of luminous stars that are monitored from space. Automated all-sky surveys have revealed numerous variable stars but most of the luminous stars are often overexposed.
arxiv +1 more source
Multicolour time series photometry of the variable star 1SWASP J234401.81−212229.1
, 2014 1SWASP J234401.81-212229.1 may be one of a handful of contact binaries comprising two M dwarfs. Modelling of the available observations is complicated by the fact that the radiation of the eclipsing system is dominated by a third star, a K dwarf.
C. Koen
semanticscholar +1 more source
Variable rotational line broadening in the Be star Achernar [PDF]
, 2013 The main theoretical problem for the formation of a Keplerian disk around Be stars is how to supply angular momentum from the star to the disk, even more so since Be stars probably rotate somewhat sub-critically.
T. Rivinius +4 more
semanticscholar +1 more source
Pleione as a Variable Star [PDF]
Symposium - International Astronomical Union, 1976 The well-known shell star Pleione is also an interesting variable star, BU Tau. Its variability was first discovered by Calder (1937) from photoelectric observations in the 1930's. The light curve of this star from the end of the 19th century to 1954 was studied by Binnendijk (1949, 1955).
V. M. Lyuty, A. S. Sharov
openaire +2 more sources
FEBS Letters, EarlyView.The NlpC_P60 superfamily of peptidases is recognised by its key role in bacterial cell wall homeostasis. Recently, studies have also described the involvement of NlpC_P60‐like enzymes in bacterial competitive mechanisms and pathogenesis across several lineages.
Catharina dos Santos Silva +1 more
wiley +1 more source
CAN RELATIONSHIP BENEFITS MAKE CUSTOMERS COMMITTED AND LOYAL?
Jurnal Manajemen dan Wirausaha, 2019 Tough competition has pushed four-star hotels in Surabaya to manage their competitive strategies. One of them is by providing relational benefits to maintain customer commitment and loyalty.
Fransisca Andreani +2 more
doaj +1 more source