Results 51 to 60 of about 804,926 (346)

Optical Appearance of Eccentric Tidal Disruption Events

The Astrophysical Journal Letters
Stars approaching supermassive black holes can be tidally disrupted. Despite being expected to emit X-rays, tidal disruption events (TDEs) have been largely observed in optical bands, which is poorly understood.
Fangyi (Fitz) Hu, Daniel J. Price, Ilya Mandel   +2 more
doaj   +1 more source

Spatiotemporal and quantitative analyses of phosphoinositides – fluorescent probe—and mass spectrometry‐based approaches

FEBS Letters, EarlyView.
Fluorescent probes allow dynamic visualization of phosphoinositides in living cells (left), whereas mass spectrometry provides high‐sensitivity, isomer‐resolved quantitation (right). Their synergistic use captures complementary aspects of lipid signaling. This review illustrates how these approaches reveal the spatiotemporal regulation and quantitative
Hiroaki Kajiho, Shin Morioka, Junko Sasaki, Takehiko Sasaki   +3 more
wiley   +1 more source

Search for neutrinos from transient sources with the ANTARES telescope and optical follow-up observations

, 2009
The ANTARES telescope has the opportunity to detect transient neutrino sources, such as gamma-ray bursts, core-collapse supernovae, flares of active nuclei...
Basa, S., Bertin, V., Boer, M., Brunner, J., Busto, J., Dornic, D., Escoffier, S., Gendre, B., Klotz, A., Mazure, A., Samarai, I. Al, Vallage, B.   +11 more
core   +3 more sources

By dawn or dusk—how circadian timing rewrites bacterial infection outcomes

FEBS Letters, EarlyView.
The circadian clock shapes immune function, yet its influence on infection outcomes is only beginning to be understood. This review highlights how circadian timing alters host responses to the bacterial pathogens Salmonella enterica, Listeria monocytogenes, and Streptococcus pneumoniae revealing that the effectiveness of immune defense depends not only
Devons Mo, Catherine S. Palmer, Jacqueline M. Kimmey   +2 more
wiley   +1 more source

Late-time Radio Flares in Tidal Disruption Events

The Astrophysical Journal
Radio monitoring unveiled late (hundreds to a thousand days) radio flares in a significant fraction of tidal disruption events. We propose that these late-time radio flares are a natural outcome if the surrounding density profile flattens outside the ...
Tatsuya Matsumoto, Tsvi Piran
doaj   +1 more source

IMPLEMENTATION OF THE COMBINED RELAY PROTECTION SYSTEMS IN DISTRIBUTION GRIDS WITH SEVERAL SOURCES [PDF]

, 2018
Creation and integration of relay protection combined structures based on microelectronic and electromechanical elements into distributed electric networks for costs reducing and improvement of their operation modes reliability ...
KOSHELENKO, Ievgenii, LUTSENKO, Ivan, RUKHLOVA, Nataliia, TSYHAN, Pavlo   +3 more
core  

Hematopoietic (stem) cells—The elixir of life?

FEBS Letters, EarlyView.
The aging of HSCs (hematopoietic stem cells) and the blood system leads to the decline of other organs. Rejuvenating aged HSCs improves the function of the blood system, slowing the aging of the heart, kidney, brain, and liver, and the occurrence of age‐related diseases.
Emilie L. Cerezo, Jonah Anderson, Emilie Dinh Vedrenne, Noël Yeh Martín, Jette Lengefeld   +4 more
wiley   +1 more source

A Possible Periodic Rotation Measure Evolution in the Repeating FRB 20220529

The Astrophysical Journal Letters
Fast radio bursts (FRBs) are mysterious millisecond-duration radio transients of extragalactic origin. Some of them repeat, while others apparently do not.
Yi-Fang Liang, Ye Li, Zhen-Fan Tang, Xuan Yang, Song-Bo Zhang, Yuan-Pei Yang, Fa-Yin Wang, Bao Wang, Di Xiao, Qing Zhao, Jun-Jie Wei, Jin-Jun Geng, Jia-Rui Niu, Jun-Shuo Zhang, Guo Chen, Min Fang, Xue-Feng Wu, Zi-Gao Dai, Wei-Wei Zhu, Peng Jiang, Bing Zhang   +20 more
doaj   +1 more source

First Results from Fermi GBM Earth Occultation Monitoring: Observations of Soft Gamma-Ray Sources Above 100 keV [PDF]

, 2010
The NaI and BGO detectors on the Gamma-ray Burst Monitor (GBM) on Fermi are now being used for long-term monitoring of the hard X-ray/low energy gamma-ray sky.
A. Camero-Arranz, A. von Kienlin, Atwood, Bouchet, C. A. Meegan, C. A. Wilson-Hodge, Caballero-García, Cadolle Bel, Case, Case, Case, Connaughton, Cowley, E. Beklen, Fishman, G. L. Case, Gehrels, Harmon, Harmon, Homan, Hoover, J. C. Rodi, J. Greiner, Jourdain, Levine, Ling, Ling, Ling, M. H. Finger, M. L. Cherry, M. S. Briggs, Markwardt, Markwardt, Matsuoka, McClintock, McConnell, Meegan, Miller, Much, Muñoz-Darias, Muñoz-Darias, Negoro, Negoro, P. Jenke, P. N. Bhat, Paczynski, Palmer, Petry, R. M. Kippen, R. Preece, Rothschild, Shaposhnikov, Smith, Steinle, Tueller, US Committee on Extension to the Standard Atmosphere., V. Chaplin, V. Connaughton, W. S. Paciesas, Wilson-Hodge, Wilson-Hodge, Wilson-Hodge, Wilson-Hodge, Yamaoka, Zdziarski   +64 more
core   +3 more sources

Molecular bases of circadian magnesium rhythms across eukaryotes

FEBS Letters, EarlyView.
Circadian rhythms in intracellular [Mg2+] exist across eukaryotic kingdoms. Central roles for Mg2+ in metabolism suggest that Mg2+ rhythms could regulate daily cellular energy and metabolism. In this Perspective paper, we propose that ancestral prokaryotic transport proteins could be responsible for mediating Mg2+ rhythms and posit a feedback model ...
Helen K. Feord, Gerben van Ooijen
wiley   +1 more source