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Using gamma-ray data collected by the AGILE satellite over a period of almost one year (from 2007 July to 2008 June), we searched for pulsed signal from 35 potentially interesting radio pulsars, ordered according to F γ ∝ √ ˙ Ed −2 and for which contemporary or recent radio data were available. AGILE detected 3 new top-ranking nearby and Vela-like pulsars(More)
The well-known Crab Nebula is at the center of the SN1054 supernova remnant. It consists of a rotationally powered pulsar interacting with a surrounding nebula through a relativistic particle wind. The emissions originating from the pulsar and nebula have been considered to be essentially stable. Here, we report the detection of strong gamma-ray (100(More)
The need for a suitable tissue-engineered scaffold that can be used to heal load-bearing segmental bone defects (SBDs) is both immediate and increasing. During the past 30 years, various ceramic and polymer scaffolds have been investigated for this application. More recently, while composite scaffolds built using a combination of ceramics and polymeric(More)
Very high energy (VHE) γ-ray emission from the flat spectrum radio quasar (FSRQ) PKS 1222+21 (4C 21.35, z=0.432) was detected with the MAGIC Cherenkov telescopes during a short observation (∼0.5 hr) performed on 2010 June 17. The MAGIC detection coincides with high energy MeV/GeV γ-ray activity measured by the Large Area Telescope (LAT) on board the Fermi(More)
AGILE is a small gamma-ray astronomy satellite mission of the Italian Space Agency dedicated to high-energy astrophysics launched in 2007 April. Its ∼1 µs absolute time tagging capability coupled with a good sensitivity in the 30 MeV–30 GeV range, with simultaneous X-ray monitoring in the 18–60 keV band, makes it perfectly suited for the study of gamma-ray(More)
BACKGROUND The effects of microchannel diameter in hydroxyapatite (HAp) substrates on osteoblast behavior were investigated in this study. Microchannels of 100, 250 and 500 μm diameter were created on hydroxyapatite disks. The changes in osteoblast precursor growth, differentiation, extra cellular matrix (ECM) secretion and cell attachment/orientation were(More)
Pulsars are known to power winds of relativistic particles that can produce bright nebulae by interacting with the surrounding medium. These pulsar wind nebulae are observed by their radio, optical, and x-ray emissions, and in some cases also at TeV (teraelectron volt) energies, but the lack of information in the gamma-ray band precludes drawing a(More)
Context. We report the detection by the AGILE satellite of a rapid γ-ray flare from the source 1AGL J1511−0908, associated with the powerful γ-ray quasar PKS 1510−089, during a pointing centered on the Galactic Center region from 1 March to 30 March 2008. This source has been con-tinuosly monitored in the radio-to-optical bands by the GLAST-AGILE Support(More)
Super-massive black holes in active galaxies can accelerate particles to relativistic energies, producing jets with associated gamma-ray emission. Galactic 'microquasars', which are binary systems consisting of a neutron star or stellar-mass black hole accreting gas from a companion star, also produce relativistic jets, generally together with radio flares.(More)