Results 41 to 50 of about 2,878 (188)

Cosmic-ray secondary nuclei and the structure of the galaxy [PDF]

The Astrophysical Journal, 1985
The consequencies of diffusive acceleration of cosmic rays in supernova shocks propagation through an inhomogeneous interstellar medium are explored. The acceleration takes place in the hot, tenuous, intercloud gas, while nuclear collisions, leading to the production of cosmic ray secondaries, predominantly occur in those regions where the supernova ...
G. E. Morfill, P. Meyer, R. Luest
openaire   +1 more source

High‐Throughput Screening for Accelerated Oxide Glass Discovery

Advanced Science, EarlyView.
A high‐throughput screening platform is presented that allows for accelerating laboratory glass synthesis by a factor of 102, using multicomponent stereolithographic printing. Automatic sample evaluation is achieved via Raman spectroscopy and similarity analysis without any sample preparation.
Igor Seibel‐Geraschenko, Josef Slowik, Franziska Scheffler, Alexis Duval, N. M. Anoop Krishnan, Lothar Wondraczek   +5 more
wiley   +1 more source

Spectra of He Isotopes and the 3He/4He Ratio

The Astrophysical Journal
Since its launch, the Alpha Magnetic Spectrometer-02 (AMS-02) has delivered outstanding quality measurements of the spectra of cosmic-ray (CR) species, e ^± , $\bar{p}$ , and nuclei (H–Si, S, Fe), which have resulted in a number of breakthroughs. Besides
M. J. Boschini, S. Della Torre, M. Gervasi, D. Grandi, G. Jóhannesson, G. La Vacca, N. Masi, I. V. Moskalenko, S. Pensotti, T. A. Porter, L. Quadrani, P. G. Rancoita, D. Rozza, M. Tacconi   +13 more
doaj   +1 more source

Multifunctional Nanovaccine‐Radiotherapy Synergy Drives Anti‐Tumor Immunity via Multi‐Cascade Cell Death for Pancreatic Cancer Therapy

Advanced Science, EarlyView.
Machine‐learning‐driven transcriptomic analysis identifies FSTL3 as a key tumor‐microenvironment regulator in desmoplastic pancreatic adenocarcinoma. A cRGD‐modified liposome co‐loading gemcitabine and siFSTL3 serves as an irradiation‐triggered in situ nanovaccine. It synergizes with radiotherapy to induce ferroptosis and immunogenic cell death through
Chengyi Huang, Yushu Han, Xiang Liu, Chuanhao Wang, Xiaofei Zhu, Di Chen, Yangyang Gong, Liang Chen, Wenjuan Chen, Zhenyuan Miao, Bufu Tang, Huojun Zhang   +11 more
wiley   +1 more source

Study of Flat-spectrum Radio Quasars and BL Lacertae Objects as Sources of Diffusive Ultrahigh-energy Cosmic Rays

The Astrophysical Journal
We examine whether flat-spectrum radio quasars (FSRQs) and BL Lac objects can act as plausible astrophysical sources of diffuse ultrahigh-energy cosmic rays (UHECRs).
Swaraj Pratim Sarmah, Umananda Dev Goswami   +1 more
doaj   +1 more source

New Calculation of Secondary Antiprotons in Cosmic Rays [PDF]

Proceedings of The 34th International Cosmic Ray Conference — PoS(ICRC2015), 2016
A dramatic increase in the accuracy and statistics of space-borne cosmic ray (CR) measurements has yielded several breakthroughs over the last several years. The most puzzling is the rise in the positron fraction above 10 GeV over the predictions of the propagation models assuming pure secondary production.
Moskalenko, Igor V., Jóhannesson, Gudlaugur, Kachelriess, Michael, Orlando, E, Ostapchenko, Sergey, Porter, T.A.   +5 more
openaire   +2 more sources

TNAP and PHOSPHO1 Function Synergistically to Afford Critical Control Over the Mineralization of the Postnatal Murine Skeleton

Advanced Science, EarlyView.
Biomineralization underpins skeletal development, yet its molecular control remains incompletely understood. Using a novel murine knockout model, this study reveals the essential and complementary roles of PHOSPHO1 and TNAP in postnatal skeletal development.
Lucie E. Bourne, Aikta Sharma, Scott Dillon, Jacob Keen, Soher N. Jayash, Natalie Crump, Lucinda A.E. Evans, Maya Karmali, Worachet Promruk, Claire E. Clarkin, Sonoko Narisawa, Louise Stephen, Brian L. Foster, José Luis Millán, Colin Farquharson, Katherine A. Staines   +15 more
wiley   +1 more source

Characterization of Thermoluminescent Dosimeters for Neutron Dosimetry at High Altitudes

Sensors, 2022
Neutrons constitute a significant component of the secondary cosmic rays and are one of the most important contributors to natural cosmic ray radiation background dose. The study of the cosmic ray neutrons’ contribution to the dose equivalent received by
Vittoria D’Avino, Fabrizio Ambrosino, Roberto Bedogni, Abner Ivan C. Campoy, Giuseppe La Verde, Silvia Vernetto, Carlo Francesco Vigorito, Mariagabriella Pugliese   +7 more
doaj   +1 more source

Uniaxial Strain‐Driven Ferroelastic Domain Tuning in LaAlO3${\rm LaAlO}_3$

Advanced Science, EarlyView.
The present work demonstrates based on AFM, μ$\umu$‐Raman spectroscopy, XRD, and first‐principles, that uniaxial strain provides a handle for tuning the ferroelastic domain populations in lanthanum aluminate, driving a continuous and controlled phase transition from a four‐variant rhombohedral crystal system to a two‐variant orthorhombic crystal system
Matthias Roeper, Robin Buschbeck, Jakob Wetzel, Tobias Ritschel, Anna‐Lena Hofmann, Vladyslav Kovtunovych, Mike N. Pionteck, Javier Taboada‐Gutiérrez, Alexey B. Kuzmenko, Martina Basini, Vivek Unikandanunni, Iuliia Kiseleva, Jochen Geck, Susanne C. Kehr, Maximilian Lederer, Simone Sanna, Lukas M. Eng, Samuel D. Seddon   +17 more
wiley   +1 more source

Geometry, Not Calorimetry, Drives the Radio–Infrared–γ Ray Correlation

The Astrophysical Journal
We investigate whether the observed radio–infrared (IR)– γ ray correlation in star-forming galaxies is a geometric effect rather than a signature of local cosmic-ray (CR) calorimetry.
T. A. Porter, I. V. Moskalenko, G. Jóhannesson   +2 more
doaj   +1 more source