Results 51 to 60 of about 64,388 (220)

Optical and Infrared Lightcurve Modeling of the Gamma-ray Millisecond Pulsar 2FGL J2339.6-0532 [PDF]

Journal of Astronomy and Space Sciences, 2013
We report the detection of a quasi-sinusoidally modulated optical flux with a period of 4.6343 hour in the optical and infrared band of the Fermi source 2FGL J2339.7-0531.
Tzu-Ching Yen, Albert Kwok-Hing Kong, Yoichi Yatsu, Hidekazu Hanayama, Takahiro Nagayama, on behalf of OISTER   +5 more
doaj   +1 more source

Discovery of two new pulsars in 47 Tucanae (NGC 104) [PDF]

, 2016
We report the discovery of two new millisecond pulsars (PSRs J0024$-$7204aa and J0024$-$7204ab) in the globular cluster 47\,Tucanae (NGC 104). Our results bring the total number of pulsars in 47\,Tucanae to 25.
Z. Pan, G. Hobbs, Di Li, A. Ridolfi, Pei Wang, P. Freire   +5 more
semanticscholar   +1 more source

A Hydrodynamic Bioreactor for High‐Yield Production of Extracellular Vesicles from Stem Cell Spheroids with Defined Cargo Profiling

Advanced Science, EarlyView.
This study harnesses hydrodynamic flows to generate, confine and stimulate stem cell spheroids, enabling the large‐scale production of extracellular vesicles (EVs). This innovative method not only streamlines spheroid formation and subsequent EV release in a single, integrated process, but also ensures the generation of EVs with enhanced biological ...
Solène Lenoir, Elliot Thouvenot, Giacomo Gropplero, Léonie Dec, Damarys Loew, Clotilde Théry, Jose E Perez, Claire Wilhelm   +7 more
wiley   +1 more source

The Emission Geometry of Pulsars with Interpulses

The Astrophysical Journal
We present polarization profiles of 23 pulsars exhibiting interpulse (IP) emissions using the Five-hundred-meter Aperture Spherical Radio Telescope. By applying the rotating vector model (RVM), we measured the inclination and impact angles for 16 pulsars,
S. N. Sun, N. Wang, W. M. Yan, S. Q. Wang   +3 more
doaj   +1 more source

A LOFAR census of non-recycled pulsars: average profiles, dispersion measures, flux densities, and spectra [PDF]

, 2015
We present first results from a LOFAR census of non-recycled pulsars. The census includes almost all such pulsars known (194 sources) at declinations Dec > 8° and Galactic latitudes |Gb| > 3°, regardless of their expected flux densities and scattering ...
A. Bilous, V. Kondratiev, M. Kramer, E. Keane, J. Hessels, B. Stappers, V. Malofeev, C. Sobey, R. Breton, S. Cooper, H. Falcke, A. Karastergiou, D. Michilli, S. Osłowski, S. Sanidas, S. Veen, J. V. Leeuwen, J. Verbiest, P. Weltevrede, P. Zarka, J. Grießmeier, M. Serylak, Morag Bell, J. Broderick, J. E. FF. el, S. M. ff, A. Rowlinson   +26 more
semanticscholar   +1 more source

Single‐Position Peptide Clustering for Peptidomics Reveals Novel Disease Biomarkers and Dysregulated Proteolytic Characteristics

Advanced Science, EarlyView.
A novel amino acid (aa)‐score‐based single‐position peptide clustering strategy is developed for peptidomics, enabling precise profiling of protein proteolysis in plasma from β‐thalassemia cohort. The method identifies new aa position‐based peptide cluster biomarkers validated by heavy‐labeled peptides, visualizes aggregated changes, uncovers disease ...
Na Li, Yaxin Zhu, Yumeng Yan, Jifeng Wang, Lili Niu, Xiang Ding, Mengmeng Zhang, Zhensheng Xie, Tanxi Cai, Xiaojing Guo, Jianming Luo, Peng An, Xiangqian Guo, Fuquan Yang   +13 more
wiley   +1 more source

FAST Discovery of Eight Isolated Millisecond Pulsars in NGC 6517

The Astrophysical Journal Letters
We present the discovery of eight isolated millisecond pulsars in globular cluster (GC) NGC 6517 using the Five-hundred-meter Aperture Spherical radio Telescope (FAST).
Dejiang Yin, Li-yun Zhang, Lei Qian, Ralph P. Eatough, Baoda Li, Duncan R. Lorimer, Yinfeng Dai, Yaowei Li, Xingnan Zhang, Minghui Li, Tianhao Su, Yuxiao Wu, Yu Pan, Yujie Lian, Tong Liu, Zhen Yan, Zhichen Pan   +16 more
doaj   +1 more source

Recent H-alpha Results on Pulsar B2224+65’s Bow-Shock Nebula, the “Guitar” [PDF]

Journal of Astronomy and Space Sciences, 2016
We used the 4 m Discovery Channel Telescope (DCT) at Lowell observatory in 2014 to observe the Guitar Nebula, an Hα bow-shock nebula around the high-velocity radio pulsar B2224+65.
Timothy Dolch, Shami Chatterjee, Dan P. Clemens, James M. Cordes, Lauren R. Cashmen, Brian W. Taylor   +5 more
doaj   +1 more source

A study of multifrequency polarization pulse profiles of millisecond pulsars [PDF]

, 2015
We present high signal-to-noise ratio, multifrequency polarization pulse profiles for 24 millisecond pulsars that are being observed as part of the Parkes Pulsar Timing Array project.
S. Dai, G. Hobbs, R. Manchester, M. Kerr, R. M. Shannon, W. Straten, A. Mata, M. Bailes, N. Bhat, S. Burke-Spolaor, W. Coles, S. Johnston, Michael J. Keith, Y. Levin, S. Osłowski, D. Reardon, Vikram Ravi, J. Sarkissian, C. Tiburzi, L. Toomey, H. Wang, Jie Wang, L. Wen, Renxin Xu, W. M. Yan, Xingjiang Zhu   +25 more
semanticscholar   +1 more source

Leveraging Compressed Sensing and Radiomics for Robust Feature Selection for Outcome Prediction in Personalized Ultra‐Fractionated Stereotactic Adaptive Radiotherapy

Advanced Intelligent Systems, EarlyView.
A compressed sensing (CS)‐based feature selection method is proposed to select the most informative elements in the radiomic features extracted from medical images of personalized ultra‐fractionated stereotactic adaptive treatment. The CS‐based approach is able to simplify the feature selection process and enhance the accuracy and robustness of a ...
Yajun Yu, Steve Jiang, Robert Timmerman, Hao Peng   +3 more
wiley   +1 more source