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Evidence-informed decision making for nutrition: African experiences and way forward
(Cambridge Univ Press, 2017)
Although substantial amount of nutrition research is conducted in Africa, the research agenda is mainly donor-driven. There is a clear need for a revised research agenda in Africa which is both driven by and responding to ...
Evaluation of bio-char based products as hydrotreating catalysts for the production of renewable fuel
(2017)
Increasing demand for alternative fuel from fossil fuel exists which has led to the development of new technologies for the production of bio-fuels. One such technology involves the hydrotreatment of vegetable oils such ...
Centaurus A: hard X-ray and soft gamma-ray lightcurve correlation
(Sissa Medialab, 2017)
Centaurus A (Cen A), powered by a 55 million solar mass supermassive black hole, has been intensively monitored in all accessible wavelength ranges of the electromagnetic spectrum. However, its gamma-ray flux, both in the ...
Why the universe is unexpectedly transparent to very high energy gamma rays
(Sissa Medialab, 2017)
Recent observations of distant gamma ray sources indicate that the universe may be more transparent to VHE-gamma-rays than expected. In this paper we study the reduction of the EBL gamma-gamma opacity due to the existence ...
Modelling energy-dependent pulsar light curves due to curvature radiation
(Sissa Medialab, 2017)
Pulsars emit pulsed emission across the entire electromagnetic spectrum and their light curve phenomenology is strongly dependent on energy. This is also true for the gamma-ray waveband. Continued detections by Fermi Large ...
Simultaneous spectral and spatial modelling of young pulsar wind nebulae
(Sissa Medialab, 2017)
We model the morphology and spectrum of a pulsar wind nebula using a leptonic emission
code. This code is a time-dependent, multi-zone model that investigates the changes in
the particle spectrum as they traverse the ...
Harmonic emission assessment on a distribution network: the opportunity for the prevailing angle in harmonic phasors
(IET, 2017)
Harmonic emission assessment in high-voltage networks with a number of renewable power plants (RPP)
interconnected is challenging. A sound scientific methodology readily accessible to engineers is needed to validate ...
Assessment of a statistical approach that facilitates the constraint of pulsar geometry via dualband light curve fitting
(Sissa Medialab, 2017)
The Large Area Telescope aboard the Fermi spacecraft has detected more than 200 γ-ray pulsars
since its launch in 2008. By concurrently fitting standard geometric model light curves onto Fermi
and radio data, researchers ...
Studies of optical/gamma-ray flares of blazar 4C+01.02: recent updates from the 2016-2017 observations
(Sissa Medialab, 2017)
The flat spectrum radio quasar 4C +01.02 became one of the brightest active galactic nuclei detected at high redshift (z = 2.1) in gamma rays when it underwent a series of outbursts during several months in 2016. We monitored ...
Multi-wavelength observations of flaring blazars with ATOM and Fermi-LAT
(Sissa Medialab, 2017)
The Automatic Telescope for Optical Monitoring is a 75cm optical telescope located at the H.E.S.S. site in Namibia. Since 2005, it monitors around 250 gamma-ray emitting AGN and has observed numerous blazar flares in several ...