Results 1 to 10 of about 1,550,293 (402)

520 CTSA Search Solutions

open access: yesJournal of Clinical and Translational Science, 2022
OBJECTIVES/GOALS: CTSA Search Solutions (https://ctsa-search.rutgers.edu/search/) is a database that allows users to systematically conduct structured searches among the 60+ CTSA hub websites for information related to NCATS goals and CTSA hub activities.
Barbara Tafuto, Riddhi Vyas, Trish Pruis
doaj   +2 more sources

A solution of Sun's $520 challenge concerning 520/pi [PDF]

open access: yesInternational Journal of Number Theory, 2012
We prove a Ramanujan-type formula for $520/\pi$ conjectured by Sun. Our proof begins with a hypergeometric representation of the relevant double series, which relies on a recent generating function for Legendre polynomials by Wan and Zudilin. After showing that appropriate modular parameters can be introduced, we then apply standard techniques, going ...
Armin Straub, Mathew D. Rogers
arxiv   +6 more sources

A Dark Core in Abell 520

open access: yesThe Astrophysical Journal, 2007
The rich cluster Abell 520 (z=0.201) exhibits truly extreme and puzzling multi-wavelength characteristics. It may best be described as a "cosmic train wreck." It is a major merger showing abundant evidence for ram pressure stripping, with a clear offset ...
Andisheh Mahdavi   +6 more
core   +3 more sources

Cluster Abell 520: a perspective based on member galaxies. A cluster forming at the crossing of three filaments? [PDF]

open access: yes, 2008
The connection of cluster mergers with the presence of extended, diffuse radio sources in galaxy clusters is still debated. An interesting case is the rich, merging cluster Abell 520, containing a radio halo. A recent gravitational analysis has shown in this cluster the presence of a massive dark core suggested to be a possible problem for the current ...
Abell   +80 more
arxiv   +3 more sources

Radio observations of the merging galaxy cluster Abell 520 [PDF]

open access: yesAstronomy & Astrophysics, 2019
Context. Extended synchrotron radio sources are often observed in merging galaxy clusters. Studies of the extended emission help us to understand the mechanisms in which the radio emitting particles gain their relativistic energies. Aims. We examine the possible acceleration mechanisms of the relativistic particles that are responsible for the extended
D. A. Rafferty   +17 more
openaire   +9 more sources

A non-commutative algorithm for multiplying (7 $\times$ 7) matrices using 250 multiplications [PDF]

open access: yesarXiv, 2017
We present a non-commutative algorithm for multiplying (7x7) matrices using 250 multiplications and a non-commutative algorithm for multiplying (9x9) matrices using 520 multiplications. These algorithms are obtained using the same divide-and-conquer technique.
Sedoglavic, Alexandre
arxiv   +2 more sources

Sparse Bayesian mass-mapping with uncertainties: hypothesis testing of structure [PDF]

open access: yes, 2018
A crucial aspect of mass-mapping, via weak lensing, is quantification of the uncertainty introduced during the reconstruction process. Properly accounting for these errors has been largely ignored to date. We present a new method to reconstruct maximum a posteriori (MAP) convergence maps by formulating an unconstrained Bayesian inference problem with ...
Cai, Xiaohao   +4 more
arxiv   +5 more sources

The radiosensitization effects of Endostar on human lung squamous cancer cells H-520 [PDF]

open access: yesCancer Cell International, 2010
Background The present study mainly aimed to investigate the direct effects of Endostar (ES) on the proliferation and radiosensitivity of human lung squamous cancer cell line H-520.
Zhang Ying D   +4 more
doaj   +4 more sources

Near-infrared line imaging of the starburst galaxies NGC 520, NGC 1614 and NGC 7714 [PDF]

open access: bronze, 2000
We present high spatial resolution (0.6 arcsec) near-infrared broad-band JHK images and Br_gamma 2.1661 micron and H_2 1-0 S(1) 2.122 micron emission line images of the nuclear regions in the interacting starburst galaxies NGC 520, NGC 1614 and NGC 7714. The near-infrared emission line and radio morphologies are in general agreement, although there are
Jari Kotilainen   +3 more
arxiv   +3 more sources

520 The immune landscape of pediatric tumors [PDF]

open access: yesJournal for ImmunoTherapy of Cancer, 2020
Background It is now well established that the immune system has a substantial role in controlling cancer growth and progression. Immunotherapy is quickly coming to the forefront of cancer treatment,however the implementation of immunotherapy in pediatric solid cancers, which classically display a low mutational load, is hindered by insufficient ...
Davide Bedognetti   +11 more
doaj   +2 more sources

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