Results 51 to 60 of about 197,512 (314)

Micro/nanorobots for detecting and eliminating biological and chemical warfare agents

open access: yesBMEMat, EarlyView.
Fuel‐powered and field‐driven micro/nanorobots provide a cutting‐edge platform to safeguard national security and defense. This review reports the latest research progress in micro/nanorobots in sensing and detoxifying biological and chemical warfare agents.
Song Li   +4 more
wiley   +1 more source

Research progress on space radiation shielding materials

open access: yesJournal of Aeronautical Materials
Radiation environments such as galactic cosmic rays,solar cosmic rays and radiation belts produce various space radiation effects on the components and astronauts,threaten the normal operation of spacecraft and life and health of astronauts.
GAO Dawei   +6 more
doaj   +1 more source

Decoherence in the cosmic background radiation [PDF]

open access: yes, 2011
In this paper we analyze the possibility of detecting nontrivial quantum phenomena in observations of the temperature anisotropy of the cosmic background radiation (CBR), for example, if the Universe could be found in a coherent superposition of two ...
Dodelson S   +13 more
core   +2 more sources

Plasmakristall‐4 Experiment: 10 Years of Operation in Orbit

open access: yesContributions to Plasma Physics, EarlyView.
ABSTRACT Plasmakristall‐4 (PK‐4) is a microgravity complex plasma laboratory operated for 10 years on board the International Space Station. Its main purpose is the particle‐resolved investigation of generic condensed matter phenomena using strongly coupled suspensions of microparticles immersed in low‐pressure gas‐discharge plasmas.
M. Pustylnik   +3 more
wiley   +1 more source

Constraining the Emissivity of Ultrahigh Energy Cosmic Rays in the Distant Universe with the Diffuse Gamma-ray Emission

open access: yes, 2011
Ultra-high cosmic rays (UHECRs) with energies >10^19 eV emitted at cosmological distances will be attenuated by cosmic microwave and infrared background radiation through photohadronic processes.
Cavallo   +20 more
core   +1 more source

Severity of effect considerations regarding the use of mutation as a toxicological endpoint for risk assessment: A report from the 8th International Workshop on Genotoxicity Testing (IWGT)

open access: yesEnvironmental and Molecular Mutagenesis, EarlyView.
Abstract Exposure levels without appreciable human health risk may be determined by dividing a point of departure on a dose–response curve (e.g., benchmark dose) by a composite adjustment factor (AF). An “effect severity” AF (ESAF) is employed in some regulatory contexts.
Barbara L. Parsons   +17 more
wiley   +1 more source

Cosmic Dark Radiation and Neutrinos

open access: yesAdvances in High Energy Physics, 2013
New measurements of the cosmic microwave background (CMB) by the Planck mission have greatly increased our knowledge about the universe. Dark radiation, a weakly interacting component of radiation, is one of the important ingredients in our cosmological ...
Maria Archidiacono   +3 more
doaj   +1 more source

Effect of Cosmic UV Background on Star Formation in High Redshift Galaxies

open access: yes, 2010
The effect of the cosmic UV background on star formation in high redshift galaxies is explored by means of high resolutions cosmological simulations.
Ceverino   +21 more
core   +1 more source

Personal radio use and risk of cancers among police officers in Great Britain: Results from the airwave health monitoring study

open access: yesInternational Journal of Cancer, EarlyView.
What's New? Terrestrial trunked radio (TETRA) is the standard digital communication system used by police and other emergency services in Great Britain. During active use, TETRA emits radiofrequency electromagnetic fields, which are potentially carcinogenic in humans.
Chiara Di Gravio   +2 more
wiley   +1 more source

Geochronology of the Whittlesey sedimentary succession, eastern England: The ‘Pompeii’ of the British late Middle Pleistocene to Holocene record

open access: yesJournal of Quaternary Science, EarlyView.
Abstract The sedimentary succession at Whittlesey preserves a unique British late Middle Pleistocene to Holocene record back to a time equivalent to at least marine oxygen isotope stage 8 (ca. 250 ka). This study builds on previously published sedimentology, geochronology and palaeoecology results to establish 20 sedimentary facies associations, with ...
H. E. Langford   +3 more
wiley   +1 more source

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