Results 111 to 120 of about 4,745,474 (343)
A Study of Be Star Variability [PDF]
Symposium - International Astronomical Union, 1982 Variations of Balmer emission line strength for Be stars are compared to simultaneously measured photometric light-curves in the visual and infrared regions of the spectrum. Three different types of correlations between photometric and spectrometric variations are described. Variable intensity of continuous recombination radiation from ionized hydrogen
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FEBS Letters, EarlyView.In lymphoid organs, antigen recognition and B cell receptor signaling rely on integrins and the cytoskeleton. Integrins act as mechanoreceptors, couple B cell receptor activation to cytoskeletal remodeling, and support immune synapse formation as well as antigen extraction.
Abhishek Pethe, Tanja Nicole Hartmann
wiley +1 more source
An Investigation into the Variability of Luminous Blue Variable Stars with TESS
The Astronomical JournalLuminous blue variables (LBVs) are enigmatic, evolved, massive stars. Their variability has been observed to be episodic with large eruptions, along with variations on timescales of days to decades.
Becca Spejcher +5 more
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Variable Star T Cassiopeiæ [PDF]
Nature, 1892 FROM long-continued observations of the above star, irregularities in the ascending light curve may be expected about October or November next. I shall be happy to supply a diagram of the field to any one interested in the question.
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Social context prevents heat hormetic effects against mutagens during fish development
FEBS Letters, EarlyView.This study shows that sublethal heat stress protects fish embryos against ultraviolet radiation, a concept known as ‘hormesis’. However, chemical stress transmission between fish embryos negates this protective effect. By providing evidence for the mechanistic molecular basis of heat stress hormesis and interindividual stress communication, this study ...
Lauric Feugere +5 more
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Molecular Oncology, EarlyView.The number of circulating tumor cells obtained from prostate cancer patients was increased approximately 5‐fold compared to regular CellSearch when processing 2 mL diagnostic leukapheresis material aliquots and increased by 44‐fold when processing 20 mL DLA aliquots using the flow enrichment target capture Halbach‐array.
Michiel Stevens +8 more
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TESS Light Curves of Cataclysmic Variables. V. Improved or Corrected Orbital Periods of 53 Systems
The Astronomical JournalThe long and continuous high-time-resolution coverage of many stars by the Kepler and TESS space missions permit to explore periodic phenomena with a much higher precision than is possible with terrestrial observations.
Albert Bruch
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, 2011 This is the triennial report of IAU Commission 27, mostly presenting a review of recent advances in the field.
Handler, G. +12 more
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The Dynamics of Variable Stars [PDF]
SIAM Review, 1968 Several closely related classes of variable stars—here called Cepheid variables—have long been known, as a result of detailed observation, to be vibrating in a spherically symmetric dilational mode. The purpose of the work described here has been to understand this motion and thereby to be able to apply the extensive data on variable stars in ...
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