Search
Now showing items 41-50 of 706
Perpendicular diffusion of solar energetic particles: when is the diffusion approximation valid?
(IOP Publishing, 2020)
Multi-spacecraft observations of widespread solar energetic particle (SEP) events indicate that perpendicular (to the mean field) diffusion is an important SEP transport mechanism. However, this is in direct contrast to ...
Multifrequency observations of the candidate neutrino-emitting blazar BZB J0955+3551
(IOP Publishing, 2020)
The recent spatial and temporal coincidence of the blazar TXS 0506+056 with the IceCube-detected neutrino event IC-170922A has opened up a realm of multimessenger astronomy with blazar jets as a plausible site of cosmic-ray ...
SNR G39.2-0.3, an hadronic cosmic rays accelerator
(Oxford Univ Press, 2020)
Recent results obtained with gamma-ray satellites have established supernova remnants as accelerators of GeV hadronic cosmic rays. In such processes, CRs accelerated in SNR shocks interact with particles from gas clouds ...
Mechanical and physical behavior of fibrin clot formation and lysis in combined oral contraceptive users
(Cambridge Univ Press, 2020)
Combined oral contraceptives (COCs) are commonly prescribed and increase the risk of venous thromboembolism (VTE). We have previously found that two COCs, both containing drospirenone (DRSP) and ethinyl estradiol (EE), ...
A generalized Fisk-type HMF: implications of spatially dependent photospheric differential rotation
(IOP Publishing, 2020)
The existence of a Fisk-type heliospheric magnetic field (HMF) has been debated ever since Fisk proposed an alternative to the traditional view of the HMF first proposed by Parker. Several modifications of the original ...
An overview of goodness-of-fit tests for the Poisson distribution
(SASA, 2020)
The Poisson distribution has a large number of applications and is often used as a model in both a practical and a theoretical setting. As a result, various goodness-of-fit tests have been developed for this distribution. ...
Prevalence, antibiotic resistance and virulence of Enterococcus spp. From wastewater treatment plant effluent and receiving waters in South Africa
(IWA Publishing, 2020)
Poorly operating wastewater treatment plants (WWTPs) result in faecal pollution of receiving waters, posing a health risk to humans and animals. The aim of this study was to determine the antimicrobial resistance patterns ...
New records of Amphibiophilus spp. (Nematoda: Amphibiophilidae) parasitic in Strongylopus grayii (Smith) and Amietia delalandii (Duméril & Bibron) (Amphibia: Anura: Pyxicephalidae) in South Africa, with a description of Amphibiophilus bialatus n. sp.
(Springer, 2020)
Nematodes of the genus Amphibiophilus Skrjabin, 1916 are a small group of parasites restricted to pyxicephalid frogs in southern Africa. In the present study, the new species A. bialatus parasitising the clicking stream ...
Fourth harmonic behaviour of the 27-day periodicity in galactic cosmic rays during different solar magnetic polarity intervals
(Springer, 2020)
Galactic cosmic rays as observed by the Hermanus and Jungfraujoch Neutron Monitors between 1960 and 2018 have been analysed using various spectral analysis techniques. Daily mean neutron monitor measurements are used to ...
A new species of Neocirolana Hale, 1925 (Crustacea: Isopoda: Cirolanidae) collected during the Royal Society Expedition to Aldabra 1967–69, western Indian Ocean
(Taylor & Francis, 2020)
Neocirolana taylori sp. nov. is described from Picard Island, Aldabra Atoll, Seychelles, the first record of the genus from the tropical Western Indian Ocean and the eleventh species in the genus. The species is characterised ...