Results 61 to 70 of about 22,727 (221)
Photochemistry and Photobiology, EarlyView.This study evaluated the photodegradation of commercial insect repellents containing DEET and IR‐3535 under UV‐A and UV‐B irradiation using Raman spectroscopy. Pure DEET and IR‐3535 showed intrinsic photostability, whereas DEET diluted in ethanol and a commercial DEET‐based formulation exhibited significant spectral changes after UV exposure.
Viviane Gadret Borio +4 more
wiley +1 more source
Ultra-high-energy Cosmic-Ray Sources Can Be Gamma-Ray Dim
The Astrophysical Journal LettersUltra-high-energy cosmic rays (UHECRs), accelerated hadrons that can exceed energies of 10 ^20 eV, are the highest-energy particles ever observed. While the sources producing UHECRs are still unknown, the Pierre Auger Observatory has detected a large ...
Angelina Sherman +3 more
doaj +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
Spaceborne and spaceborn: Physiological aspects of pregnancy and birth during interplanetary flight
Experimental Physiology, EarlyView.Abstract Crewed interplanetary return missions that are on the planning horizon will take years, more than enough time for initiation and completion of a pregnancy. Pregnancy is viewed as a sequence of processes – fertilization, blastocyst formation, implantation, gastrulation, placentation, organogenesis, gross morphogenesis, birth and neonatal ...
Arun V. Holden
wiley +1 more source
Atmospheric Cerenkov astronomy of cataclysmic variables & other potential gamma ray sources [PDF]
, 1993 Recent developments in the application of the atmospheric Cerenkov technique to 7-ray astronomy are reviewed here. These include new methods of signal to noise enhancement and the increasing diversity of stellar systems positively identified as Very High
Bradbury, S.M, Bradbury, Stella Marie
core
Ultra-high-energy cosmic-ray nuclei and neutrinos in models of gamma-ray bursts and extragalactic propagation [PDF]
, 2020 The propagation code PriNCe, which is discussed in Chapter 4 of this thesis, has since been published. The open-source code is available at https://github.com/joheinze/PriNCe.Utrahochenergetische kosmische Strahlung (ultra-high-energy cosmic rays ...
Heinze, Jonas
core +1 more source
Ultra-high-energy cosmic rays and inflation relics [PDF]
Physics Reports, 1999 Submitted to Physics ...
Kuzmin, Vadim A., Tkachev, Igor I.
openaire +2 more sources
La Espiritualidad: Transmitting Peruvian Culturo‐Spiritual Elements into Occidental Systemic Spaces
Australian and New Zealand Journal of Family Therapy, Volume 47, Issue 2, June 2026.ABSTRACT This paper is a decolonising, Indigenous qualitative inquiry that integrates elements of critical autoethnography, narrative methods and conceptual analysis to explore how Peruvian Andean cosmology can inform contemporary systems thinking and family therapy practice.
Deisy Amorin‐Woods
wiley +1 more source
Very High Energy Gamma-Rays from Binary Systems [PDF]
, 2010 This thesis presents a study of the very high energy (VHE) gamma-ray emission from X-ray binary systems using the H.E.S.S. imaging atmospheric Cherenkov array.
DICKINSON, HUGH,JOHN +1 more
core
Ultra high-energy cosmic ray observations
Journal of Physics: Conference Series, 2008 The year 2007 has furnished us with outstanding results about the origin of the most energetic cosmic rays: a flux suppression as expected from the GZK-effect has been observed in the data of the HiRes and Auger experiments and correlations between the positions of nearby AGN and the arrival directions of trans-GZK events have been observed by the ...
openaire +2 more sources