Results 81 to 90 of about 6,360,569 (404)

Multifrequency VLBI Observations of the Broad Absorption Line Quasar J1020+4320: Recently Restarted Jet Activity?

, 2013
This paper reports very-long-baseline interferometry observations of the radio-loud broad absorption line (BAL) quasar J1020+4320 at 1.7, 2.3, 6.7, and 8.4 GHz using the Japanese VLBI network (JVN) and European VLBI network (EVN). The radio morphology is
Asada, Keiichi, Doi, Akihiro, Fujisawa, Kenta, Hayashi, Takayuki J., Honma, Mareki, Jike, Takaaki, Kimura, Kimihiro, Kobayashi, Hideyuki, Koyama, Shoko, Mochizuki, Nanako, Murata, Yasuhiro, Nagai, Hiroshi, Ogawa, Hideo, Oyama, Tomoaki, Shibata, Katsunori M., Sugiyama, Koichiro, Takeuchi, Hiroshi   +16 more
core   +1 more source

Tracing Ghost Cavities with Low Frequency Radio Observations [PDF]

, 2006
We present X-ray and multi-frequency radio observations of the central radio sources in several X-ray cavity systems. We show that targeted radio observations are key to determining if the lobes are being actively fed by the central AGN.
A.C. Fabian, A.C. Fabian, B.R. McNamara, C.L. Sarazin, C.P. O’Dea, E.L. Blanton, J.R. Peterson, P. Parma, R.P. Kraft, S. Heinz, T.A. Ensslin, T.E. Clarke, W.R. Oegerle, Y.-Y. Choi, Z. Huang   +14 more
core   +4 more sources

System-level modeling with temperature compensation for a CMOS-MEMS monolithic calorimetric flow sensing SoC

Microsystems & Nanoengineering
We present a system-level model with an on-chip temperature compensation technique for a CMOS-MEMS monolithic calorimetric flow sensing SoC. The model encompasses mechanical, thermal, and electrical domains to facilitate the co-design of a MEMS sensor ...
Linze Hong, Ke Xiao, Xiangyu Song, Liwei Lin, Wei Xu   +4 more
doaj   +1 more source

A stepwise emergence of evolution in the RNA world

FEBS 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

Multi-messenger astronomy of gravitational-wave sources with flexible wide-area radio transient surveys [PDF]

, 2015
We explore opportunities for multi-messenger astronomy using gravitational waves (GWs) and prompt, transient low-frequency radio emission to study highly energetic astrophysical events.
Akukwe, Bernadine, Bear, Brandon E., Chen, Kevin, Dowell, Jayce, Gough, Jonathan D., Kanner, Jonah, Kavic, Michael, Obenberger, Kenneth, Shawhan, Peter, Simonetti, John H., Taylor, Gregory B., Tsai, Jr-Wei, Yancey, Cregg C.   +12 more
core   +2 more sources

Federated Reinforcement Learning in Stock Trading Execution: The FPPO Algorithm for Information Security

IEEE Access
Stock trading execution is a critical component in the complex financial market landscape, and the development of a robust trade execution framework is essential for financial institutions pursuing profitability.
Haogang Feng, Yue Wang, Shida Zhong, Tao Yuan, Zhi Quan   +4 more
doaj   +1 more source

Radio, optical and X-ray nuclei in nearby 3CRR radio galaxies [PDF]

, 1999
HST observations have shown that low-redshift 3CR radio galaxies often exhibit a point-like optical component positionally coincident with the GHz-frequency radio core. In this paper we discuss the correlation between the luminosities of the radio, optical and X-ray cores in these objects, and argue that all three components have a common origin at the
arxiv   +1 more source

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

FEBS 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, Marco Cellani, Cristina Scielzo   +2 more
wiley   +1 more source

Radio precursors to neutron star binary mergings

, 2010
We discuss a possible generation of radio bursts preceding final stages of binary neutron star mergings which can be accompanied by short gamma-ray bursts.
B. Giacomazzo, B.M.S. Hansen, D. Burlon, D. Burlon, D. Eichler, D. Guetta, D.R. Lorimer, E. Nakar, G.V. Lipunova, J. Leeuwen van, J.A. Faber, K. A. Postnov, K. Kiuchi, K.A. Postnov, K.A. Postnov, M. Anderson, M. Nysewander, M. Ruffert, M. S. Pshirkov, M. Shibata, M.D. Duez, M.V. Barkov, N.D.R. Bhat, R.N. Manchester, S.E. Woosley, S.I. Blinnikov, T. Regimbau, V.M. Lipunov, V.V. Usov, W. Kluźniak, Y.-T. Liu, Y.E. Lyubarsky   +31 more
core   +1 more source

PREPARATION AND PHYSICAL PROPERTIES OF OPAL MATRICES WITH NANOPARTICLES OF TITANIUM AND IRON OXIDES

Тонкие химические технологии, 2016
The article considers specific features of the formation of nanocomposites based on the lattice packing of SiO2 nanospheres (opal matrices) with clusters of titanium and iron compounds (FeTiO3, FeTi2O5, TiO2, Fe2O3) embedded into nanopores between ...
M. I. Samoylovich, А. F. Belyanin, A. S. Bagdasaryan   +2 more
doaj   +1 more source