Results 111 to 120 of about 5,591,095 (382)

Variable Stars

open access: yes, 2011
This is the triennial report of IAU Commission 27, mostly presenting a review of recent advances in the field.
Handler, G.   +12 more
openaire   +2 more sources

Notes on variable stars [PDF]

open access: yesAstronomische Nachrichten, 1913
n ...
openaire   +2 more sources

VLT/X-shooter observations of the low-metallicity blue compact dwarf galaxy PHL 293B including a luminous blue variable star [PDF]

open access: yes, 2011
(abridged) We present VLT/X-shooter spectroscopic observations in the wavelength range 3000-23000A of the extremely metal-deficient blue compact dwarf (BCD) galaxy PHL 293B containing a luminous blue variable (LBV) star.
Y. Izotov   +15 more
semanticscholar   +1 more source

The Gaia Parallax Discrepancy for the Cluster Pismis 19 and Separating δ Scutis from Cepheids

open access: yesThe Astrophysical Journal
Pre-Gaia distances for the open cluster Pismis 19 disagree with Gaia parallaxes. A Two Micron All Sky Survey (2MASS) JK _s red clump distance was therefore established for Pismis 19 (2.90 ± 0.15 kpc), which reaffirms that zero-point corrections for Gaia ...
Daniel Majaess   +12 more
doaj   +1 more source

CAN RELATIONSHIP BENEFITS MAKE CUSTOMERS COMMITTED AND LOYAL?

open access: yesJurnal 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

A stepwise emergence of evolution in the RNA world

open access: yesFEBS Letters, EarlyView.
How did biological evolution emerge from chemical reactions? This perspective proposes a gradual scenario of self‐organization among RNA molecules, where catalytic feedback on random mixtures plays the central role. Short oligomers cross‐ligate, and self‐assembly enables heritable variations. An event of template‐externalization marks the transition to
Philippe Nghe
wiley   +1 more source

Machine learning techniques to select Be star candidates. An application in the OGLE-IV Gaia south ecliptic pole field

open access: yes, 2017
Statistical pattern recognition methods have provided competitive solutions for variable star classification at a relatively low computational cost.
García-Varela, A.   +4 more
core   +1 more source

Notes on variable stars [PDF]

open access: yesAstronomische Nachrichten, 1899
n ...
openaire   +2 more sources

Multiperiodicity, modulations and flip-flops in variable star light curves I. Carrier fit method [PDF]

open access: yes, 2011
Context. The light curves of variable stars are commonly described using simple trigonometric models, that make use of the assumption that the model parameters are constant in time.
J. Pelt   +3 more
semanticscholar   +1 more source

B cell mechanobiology in health and disease: emerging techniques and insights into therapeutic responses

open access: yesFEBS Letters, EarlyView.
B cells sense external mechanical forces and convert them into biochemical signals through mechanotransduction. Understanding how malignant B cells respond to physical stimuli represents a groundbreaking area of research. This review examines the key mechano‐related molecules and pathways in B lymphocytes, highlights the most relevant techniques to ...
Marta Sampietro   +2 more
wiley   +1 more source

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