Browsing Faculty of Natural Sciences by Title

The 1.28 GHz MeerKAT DEEP2 Image

Asad, K; Cotton, W; Mauch, T (2020)

We present the confusion-limited 1.28 GHz MeerKAT DEEP2 image covering one qb » ¢ 68 FWHM primarybeam area with θ = 7 6 FWHM resolution and s =  m - n 0.55 0.01 Jy beam 1 rms noise. Its J2000 center position α = 04h 13m ...

16 S rDNA primers and the unbiased assessment of thermophile diversity

Baker, Gillian; Cowan, Donald A. (Portland Press, 2004)

Our understanding of thermophile diversity is based predominantly on PCR studies of community DNA. ‘Universal’ and domain-specific rRNA gene PCR primers have historically been used for the assessment of microbial diversity ...

1D NiHPO4 nanotubes prepared using dissolution equilibrium as bifunctional electrocatalyst for high-efficiency water splitting

Ji, Shan; Wang, Zining; Wu, Yutai (Journal of Power Sources, 2021)

In this work, one-dimensional NiHPO4 nanotubes are successfully fabricated on nickel foam by hydrothermal reaction, in which a dissolution equilibrium between phosphates is controlled by tuning the proportion of the mixed ...

The 2020 release of the ExoMol database: Molecular line lists for exoplanet and other hot atmospheres

Lynas-Gray, A.E.; Tennyson, Jonathan; Yurchenko, Sergey (Elsevier, 2020)

The ExoMol database (www.exomol.com) provides molecular data for spectroscopic studies of hot atmospheres. While the data are intended for studies of exoplanets and other astronomical bodies, the dataset is widely applicable. ...

A 35-gene signature discriminates between rapidly- and slowly-progressing glioblastoma multiforme and predicts survival in known subtypes of the cancer

Fatai, Azeez A.; Gamieldien, Junaid (BioMed Central, 2018)

BACKGROUND: Gene expression can be employed for the discovery of prognostic gene or multigene signatures cancer. In this study, we assessed the prognostic value of a 35-gene expression signature selected by pathway ...

3D-QSAR and docking studies of pentacycloundecylamines at the sigma-1 (σ1) receptor

Geldenhuys, Werner J.; Novotny, Nicholas; Malan, Sarel F.; Van der Schyf, Cornelis J. (Elsevier, 2013)

Pentacycloundecylamine (PCU) derived compounds have been shown to be promising lead structures for the development of novel drug candidates aimed at a variety of neurodegenerative and psychiatric diseases. Here we show for ...

4-Oxatricyclo[5.2.1.02,6]dec-8-ene-3,5-dione derivatives as NMDA receptor- and VGCC blockers with neuroprotective potential

Egunlusi, Ayodeji O; Omoruyi, Sylvester I; Malan, Sarel F (MDPI, 2020)

The impact of excitotoxicity mediated by N-methyl-D-aspartate (NMDA) receptor overactivation and voltage gated calcium channel (VGCC) depolarization is prominent among the postulated processes involved in the development ...

4-oxatricyclo[5.2.1.02,6]dec-8-ene-3,5-dione derivatives as nmda receptor- And VGCC blockers with neuroprotective potential

Egunlusi, Ayodeji O.; Malan, Sarel F.; Omoruyi, Sylvester Ifeanyi (MPDI, 2020)

The impact of excitotoxicity mediated by N-methyl-D-aspartate (NMDA) receptor overactivation and voltage gated calcium channel (VGCC) depolarization is prominent among the postulated processes involved in the development ...

4-Oxatricyclo[5.2.1.02,6]dec-8-ene-3,5-dione Derivatives as NMDA Receptor- and VGCC Blockers with Neuroprotective Potential

Egunlusi, A; Malan, S; Omoruyi, S (MDPI, 2020)

The impact of excitotoxicity mediated by N-methyl-D-aspartate (NMDA) receptor overactivation and voltage gated calcium channel (VGCC) depolarization is prominent among the postulated processes involved in the development ...

A new route to control texture of materials: Nanostructured ZnFe2O4 photoelectrodes

Tahir, Asif Ali; Burch, Henry A.; Wijayantha, K.G. Upul; Pollet, Bruno G. (2013)

Studies were conducted to investigate the influence of deposition solution composition (methanol ≤ the deposition solvent ≤ ethanol) on their physical and chemical properties that matters in the aerosol formation and ...

Abalone farming in South Africa: an overview with perspectives on kelp resources, abalone feed, potential for on-farm seaweed production and socio-economic importance

Troella, M. D.; Robertson-Andersson, Deborah; Anderson, Robert J.; Bolton, John J.; Maneveldt, Gavin; Halling, C.; Probyn, T. (Elsevier, 2006)

The South African abalone cultivation industry has developed rapidly and is now the largest producer outside Asia. With a rapid decline in wild abalone fisheries, farming now dominates the abalone export market in South ...

Abstractions for designing and evaluating communication bridges for people in developing regions

Tucker, William David; Blake, Edwin H. (ACM, 2010)

This paper describes two novel abstractions that help soft- ware engineers work in developing regions to align social and technical factors when building communication systems. The abstractions extend two concepts familiar ...

Abundance and species composition of non-geniculate coralline red algae epiphytic on the South African populations of the rocky shore seagrass Thalassodendron leptocaule M.C. Duarte, Bandeira & Romeiras

Browne, Catherine M.; Maneveldt, Gavin; Bolton, John J.; Anderson, Robert J. (Elsevier, 2013)

Seagrasses support a great diversity of epiphytic organisms and new research has shown that non-geniculate coralline red algae are important occupiers of space on the fronds of seagrasses. Except for a few scant records, ...

Abundance of no3 derived organo-nitrates and their importance in the atmosphere

Foulds, Amy; Khan, M. Anwar H.; Shallcross, Dudley E. (MPDI, 2021)

The chemistry of the nitrate radical and its contribution to organo-nitrate formation in the troposphere has been investigated using a mesoscale 3-D chemistry and transport model, WRFChem-CRI. The model-measurement ...

Access to chronic medicines: patients’ preferences for a last kilometre medicine delivery service in Cape Town, South Africa

Adams, S; Mulubwa, M; van Huyssteen, M (Springer Nature, 2021)

: Chronic patients are required to access their chronic medicines on a regular basis, often only to refill their repeat prescriptions. Adherence to chronic medicines is challenging and has stimulated health care providers to ...