Results 111 to 120 of about 5,591,095 (382)
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
VLT/X-shooter observations of the low-metallicity blue compact dwarf galaxy PHL 293B including a luminous blue variable star [PDF]
(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
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?
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
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
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
Multiperiodicity, modulations and flip-flops in variable star light curves I. Carrier fit method [PDF]
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 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