Results 71 to 80 of about 3,080 (225)

Disordered N‐termini enhance the thermostability of SGNH‐hydrolase family polyesterases

Protein Science, Volume 35, Issue 1, January 2026.
Abstract Polyesters are widely used plastics that persist in the environment due to their resistance to degradation. Microbial polyesterases potentially offer recycling and remediation solutions. However, most polyesterases lack the thermostability and catalytic efficiency required for practical application.
F. Hafna Ahmed, Lygie Esquirol, Santana Royan, Mitchell M. Birgan, Nigel G. French, Sophia Newton, Alessandro T. Caputo, Colin Scott   +7 more
wiley   +1 more source

Probing the Sources of Ultra-High-Energy Cosmic Rays—Constraints from Cosmic-Ray Measurements

Universe
Ultra-high-energy cosmic rays (UHECRs) are the most energetic particles known—and yet their origin is still an open question. However, with the precision and accumulated statistics of the Pierre Auger Observatory and the Telescope Array, in combination ...
Teresa Bister
doaj   +1 more source

Polydopamine‐Based Antioxidant Countermeasures Against Spaceflight‐Induced Neurodegeneration

Small Science, Volume 6, Issue 1, January 2026.
Polydopamine nanoparticles (PDNPs) protect neuron‐like cells from microgravity‐ and cosmic radiation‐induced oxidative stress. Through in‐flight and ground‐based experiments, it has been shown that PDNPs preserve neuronal and mitochondrial function, markedly mitigating transcriptional dysregulation caused by spaceflight.
Alessio Carmignani, Attilio Marino, Matteo Battaglini, Melike Belenli Gümüş, Elisa Carrubba, Michele Balsamo, Giovanni Valentini, Gabriele Mascetti, Marco Vukich, Giada Graziana Genchi, Gianni Ciofani   +10 more
wiley   +1 more source

The importance of atmospheric monitoring at the Pierre Auger Observatory

EPJ Web of Conferences, 2017
The Pierre Auger Observatory is an ultra-high energy cosmic ray experiment employing a giant surface array of particle detectors together with telescopes to image fluorescence light from extensive air showers in the atmosphere.
Dawson Bruce R.
doaj   +1 more source

On ultra-high energy cosmic rays [PDF]

Proceedings of Neutrino Oscillation Workshop — PoS(NOW2018), 2019
This paper summarizes some results on our understanding of the origin of ultra-high energy cosmic rays.
openaire   +1 more source

Short‐Term Effect of Mars‐Like Radiation on Carbon and Oxygen Isotope Compositions of Carbonates

Journal of Geophysical Research: Planets, Volume 131, Issue 1, January 2026.
Abstract The stable isotope composition of carbonates records the environmental formation conditions and can indicate potential biosignatures if formed biologically. Martian meteorite carbonates display unusually high δ13C values, not explained using known terrestrial processes.
Nicolas Randazzo, Sang‐Tae Kim, Fabien Stalport, Maikel C. Rheinstäder, Hervé Cottin, Patrice Coll   +5 more
wiley   +1 more source

Acceleration of Ultra High Energy Cosmic Rays: Cosmic Zevatrons? [PDF]

, 2003
In this lecture I outline some of the underlying physics issues associated with accelerators plausibly capable of explaining the UHECRs up to ZeV energies. I concentrate on the concentrate on mechanisms and their constraints, but provide a brief background on on observations and the constraints they supply, as well.
openaire   +2 more sources

Results from the Telescope Array and review of HiRes

EPJ Web of Conferences, 2013
A new measurement of the cosmic ray spectrum using the Telescope Array surface arrays is presented. Results on the composition of ultra-high energy cosmic rays from air-fluorescence measurements of shower maximum distributions are presented.
Sokolsky P.
doaj   +1 more source

Joint analysis of the energy spectrum of ultra-high-energy cosmic rays as measured at the Pierre Auger Observatory and the Telescope Array [PDF]

, 2021
Y. Tsunesada, Rasha Abbasi, T. Abu‐Zayyad, Monica Allen, Yuto Arai, Ryuhei Arimura, E. Barcikowski, John Belz, D. R. Bergman, Samuel Blake, R. Cady, ByongGu Cheon, Jyunsei Chiba, Michiyuki Chikawa, Toshihiro Fujii, Kozo Fujisue, K. Fujita, Ryota Fujiwara, M. Fukushima, Ryota Fukushima, Greg Furlich, Ricardo González, W. Hanlon, Motoki Hayashi, N. Hayashida, K. Hibino, Ryo Higuchi, Ken Honda, D. Ikeda, Taichi Inadomi, Naoya Inoue, Takaaki Ishii, Hirotaka Ito, D. Ivanov, Hirokazu Iwakura, Aoi Iwasaki, Hyoming Jeong, Soomin Jeong, Charlie Jui, K. Kadota, F. Kakimoto, O. Kalashev, K. Kasahara, Saori Kasami, Hideyuki Kawai, S. Kawakami, S. Kawana, Katsumasa Kawata, Ivan Kharuk, E. Kido, HangBae Kim, Jihee Kim, Jihyun Kim, Min Hyo Kim, Sang‐Woo Kim, Yusuke Kimura, Shoichi Kishigami, Yuto Kubota, Shinnosuke Kurisu, Vladim Kuzmin, M. Kuznetsov, Youngjoon Kwon, Kwang‐Ho Lee, BayarJon Paul Lubsandorzhiev, Jon Paul Lundquist, Kazuhiro Machida, Hiroyuki Matsumiya, Toshio Matsuyama, J. N. Matthews, R. Mayta, M. Minamino, Keijiro Mukai, I. Myers, Shigehiro Nagataki, Kei Nakai, Ryo Nakamura, Toru Nakamura, Tomoyuki Nakamura, Yuya Nakamura, Arata Nakazawa, Eiji Nishio, T. Nonaka, Hiroyuki Oda, S. Ogio, M. Ohnishi, H. Ohoka, Yuya Oku, Takeshi Okuda, Yugo Omura, M. Ono, R. Onogi, A. Oshima, S. Ozawa, Il Hung Park, Matt Potts, М. С. Пширков, Jackson Remington, Doug Rodriguez, Г. И. Рубцов, Dongsu Ryu   +99 more
openalex   +1 more source

Observations of ultra-high energy cosmic rays

Journal of Physics: Conference Series, 2006
The status of measurements of the arrival directions, mass composition and energy spectrum of cosmic rays above 3 x 10^18 eV (3 EeV) is reviewed using reports presented at the 29th International Cosmic Ray Conference held in Pune, India, in August 2005.
openaire   +2 more sources