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Now showing items 1471-1480 of 3091
Fermi LAT pulsed detection of PSR J0737-3039A in the double pulsar system
(IOP Publishing, 2013)
We report the Fermi Large Area Telescope discovery of γ-ray pulsations from the 22.7 ms pulsar A in the double pulsar system J0737−3039A/B. This is the first mildly recycled millisecond pulsar (MSP) detected in the GeV ...
A seasonal trend of single scattering albedo in southern African biomass-burning particles: implications for satellite products and estimates of emissions for the world's largest biomass-burning source
(Wiley, 2013)
As a representative site of the southern African biomass-burning region, sun-sky data from the 15 year Aerosol Robotic Network (AERONET) deployment at Mongu, Zambia, was analyzed. For the biomass-burning season months ...
Oorlewing van die skerpioen Opistophthalmus pugnax (Scorpionidae) ná blootstelling aan n letale dosis SO2–gas
(AOSIS, 2013)
Survival of the scorpion Opistophthalmus pugnax (Scorpionidae) after exposure to a lethal
dosage SO2
gas. Scorpions are well known for their ability to adapt to dry habitats, scarcity of
food and radioactive radiation. ...
Application of membrane technology in a base metal refinery
(SAIMM, 2013)
Nanofiltration (NF) has attracted much attention over the past few
years due to the reduced energy consumption compared to reverse
osmosis (RO) and better separation performance compared to
ultrafiltration (UF). Although ...
Addressing multi-language diversity in mathematics teacher education programs
(Springer, 2016)
In this chapter, mathematics teacher educators (MTEs) from two different environments, namely South Africa (RSA) and the United States (US), join together to share our insights on the role that MTEs might play in the ...
Application of multivariate statistics and toxicity indices to evaluate the water quality suitability for fish of three rivers in the Kruger National Park, South Africa
(NISC, 2015)
The water quality of the Olifants, Letaba and Luvuvhu rivers within the Kruger National Park was assessed for their suitability to sustain fish populations. Since water quality assessments result in huge datasets, principal ...
The state of the psychological contract and employees' intention to leave: the mediating role of employee well-being
(Sage Publications, 2013)
Changes in the work environment can influence employees’ perception of the employment relationship, their psychological contracts, and consequently, their work-related attitudes and behaviour. The study aimed to demonstrate ...
Review of subnational credit rating methodologies and the applicability in the South African context
(Taylor & Francis / Unisa Press, 2013)
A credit rating is a prerequisite to enter financial markets. While most sovereigns have assigned credit ratings, many subnational governments (i.e. states, provinces or counties) do not, despite the considerable benefits ...
Deliberate strategy and the tangible link to performance: lessons from South African higher education
(Academic Journals [©2011 Academic Journals], 2011)
The notion of deliberate versus emergent strategy has long been debated. However, researchers have failed to show which method will bring about an increase in organisational performance, which is the bottom line for business ...
Simulation experiments for maximising the availability of a commercial octene production facility
(2010)
Overall availability of a chemical process is of critical importance in industry. In this paper we evaluate the process design factors that influence the availability of a new chemical production facility by performing ...