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Showing 1–14 of 14 results

Advanced filters: Author: Silvia Zane Clear advanced filters

Genomic predictors of response to PD-1 inhibition in children with germline DNA replication repair deficiency

Hypermutation and microsatellite burden determine responses and long-term survival following PD-1 blockade in children and young adults with refractory cancers resulting from germline DNA replication repair deficiency.

Anirban Das
Sumedha Sudhaman
Uri Tabori
ResearchOpen Access06 Jan 2022
Nature Medicine

Volume: 28, P: 125-135
Complex rotational dynamics of the neutron star in Hercules X-1 revealed by X-ray polarization

IXPE has revealed how the spin of the accreting neutron star Hercules X-1 changes in three dimensions. The spin axis of the star moves both through the star and across the sky, hinting that the crust of the star is asymmetric by almost one part in a million.

Jeremy Heyl
Victor Doroshenko
Silvia Zane
Research18 Jun 2024
Nature Astronomy

Volume: 8, P: 1047-1053
Cygnus X-3 revealed as a Galactic ultraluminous X-ray source by IXPE

The accretion geometry of X-ray binary Cygnus X-3 is determined here from IXPE observations. X-ray polarization reveals a narrow funnel with reflecting walls, which focuses emission, making Cyg X-3 appear as an ultraluminous X-ray source.

Alexandra Veledina
Fabio Muleri
Silvia Zane
Research21 Jun 2024
Nature Astronomy

Volume: 8, P: 1031-1046
A variable absorption feature in the X-ray spectrum of a magnetar

The X-ray spectrum of the soft-γ-ray repeater SGR 0418+5729 is found to exhibit an absorption line, the properties of which depend strongly on the star’s rotational phase; this line is interpreted as a proton cyclotron feature and its energy implies a magnetic field ranging from 2 × 10¹⁴ gauss to more than 10¹⁵ gauss.

Andrea Tiengo
Paolo Esposito
Giovanni F. Bignami
Research14 Aug 2013
Nature

Volume: 500, P: 312-314
IL-15 constrains mast cell–dependent antibacterial defenses by suppressing chymase activities

Zane Orinska
Marcus Maurer
Silvia Bulfone-Paus
Research22 Jul 2007
Nature Medicine

Volume: 13, P: 927-934
X-ray polarization evidence for a 200-year-old flare of Sgr A^*

A study reports the measurement of the polarization degree and angle of X-rays from Sagittarius A^* reflected off a nearby cloud, indicating an X-ray flare about 200 years ago.

Frédéric Marin
Eugene Churazov
Silvia Zane
Research21 Jun 2023
Nature

Volume: 619, P: 41-45
Simultaneous space and phase resolved X-ray polarimetry of the Crab pulsar and nebula

X-ray polarization measurements of the Crab nebula and pulsar by the IXPE satellite reveal a global toroidal magnetic field with large variations in local polarization, suggesting a more complex turbulence distribution than anticipated.

Niccolò Bucciantini
Riccardo Ferrazzoli
Silvia Zane
Research06 Apr 2023
Nature Astronomy

Volume: 7, P: 602-610
Determination of X-ray pulsar geometry with IXPE polarimetry

X-ray polarimetry observations with the Imaging X-ray Polarimetry Explorer constrain the accretion geometry in an X-ray pulsar and provide evidence for a misalignment of the spin, magnetic and orbital axes in Her X-1.

Victor Doroshenko
Juri Poutanen
Fei Xie
Research24 Oct 2022
Nature Astronomy

Volume: 6, P: 1433-1443
Vela pulsar wind nebula X-rays are polarized to near the synchrotron limit

Polarization can exceed 60% at the leading edge of the inner part of the Vela pulsar wind nebula; in contrast with the case of the supernova remnant, the electrons in the pulsar wind nebula are accelerated with little or no turbulence in a highly uniform magnetic field.

Fei Xie
Alessandro Di Marco
Silvia Zane
Research21 Dec 2022
Nature

Volume: 612, P: 658-660
Polarized blazar X-rays imply particle acceleration in shocks

Polarization measurements are reported for the blazar Mk501, revealing a degree of X-ray polarization that is more than twice the optical value and supporting the shock-accelerated energy-stratified electron population scenario.

Ioannis Liodakis
Alan P. Marscher
Silvia Zane
ResearchOpen Access23 Nov 2022
Nature

Volume: 611, P: 677-681
Discovery of X-ray polarization angle rotation in the jet from blazar Mrk 421

In June 2022, the IXPE satellite observed a shock passing through the jet of active galaxy Markarian 421. The rotation of the X-ray-polarized radiation over a 5-day period revealed that the jet contains a helical magnetic field.

Laura Di Gesu
Herman L. Marshall
Silvia Zane
Research17 Jul 2023
Nature Astronomy

Volume: 7, P: 1245-1258
DNA methylation-based classification of central nervous system tumours

An online approach for the DNA methylation-based classification of central nervous system tumours across all entities and age groups has been developed to help to improve current diagnostic standards.

David Capper
David T. W. Jones
Stefan M. Pfister
Research14 Mar 2018
Nature

Volume: 555, P: 469-474
High dose CD11c-driven IL15 is sufficient to drive NK cell maturation and anti-tumor activity in a trans-presentation independent manner

Julia K. Polansky
Rajia Bahri
Silvia Bulfone-Paus
ResearchOpen Access29 Jan 2016
Scientific Reports

Volume: 6, P: 1-14
Selection-driven adaptation to the extreme Antarctic environment in the Emperor penguin

Federica Pirri
Lino Ometto
Emiliano Trucchi
Research07 Oct 2022
Heredity

Volume: 129, P: 317-326