Conveners
AfLS Contribution
- Tshepo Ntsoane (Necsa)
AfLS Contribution
- Abidemi Paul Kappo (University of Johannesburg)
AfLS Contribution
- Kudakwashe Jakata (European Synchrotron)
AfLS Contribution: AfLS Contribution
- Collieus Lebudi (Botswana International University of Science and Technology)
AfLS Contribution: IMA
- Gihan Kamel (SESAME Light Source)
AfLS Contribution
- Loan Truong ()
AfLS Contribution
- Lawrence Norris (National Society of Black Physicists)
AfLS Contribution
- Mashikoane Mogodi (University of Cape Town)
AfLS Contribution
- Emmanuel Igumbor (University of Johannesburg)
AfLS Contribution
- There are no conveners in this block
AfLS Contribution
- Robert Kingsford-Adaboh (University of Ghana)
AfLS Contribution
- Marcus Newton (University of Southampton)
Description
AfLS Contribution
- Introduction
Keratin is a hardy fibrous protein found in all vertebrates with many varying types, and α and β keratin are the most abundant. α-Keratin is found in all vertebrates and consists of α-helix secondary structural elements. In contrast, β-keratin is found only in sauropsids such as reptiles and birds, and is formed out of β-sheet secondary structural elements [1]. Because of...
Humanity needs alternative energy solutions as fossil fuels deplete and climate change threatens our world. Solid Oxide Fuel and electrolyzer cells (SOFCs and SOECs) may not solve the problem but provide diversity to the world’s energy sources portfolio, these electrochemical converters improve the efficiency at which we utilise our dwindling resources. SOECs could prove particularly useful in...
Investigation of Biomimetic Coatings on Glassy Carbon and Ti-6Al-4V Substrates: Impact of Varying Surface Preparation Methods
Unaisa Dockrat1, Johan.B. Malherbe 1, Tshepo.P. Ntsoane2, Thabsile.T. Thabethe1
1Physics Department, University of Pretoria, Hatfield, South Africa.
2Physics Department, South African Nuclear Energy Corporation, Pretoria, South Africa.
Corresponding...
Morgan Madhuku1, Rudolph Nchodusup>1, Gillian Arendsesup>1
1 NRF-iThemba LABS, P O Box 722 Somerset West 7129, South Africa
Corresponding author e-mail address: m.madhuku@ilabs.nrf.ac.za
Since its establishment, iThemba Laboratories for Accelerator-based Sciences (iThemba LABS) has advanced knowledge, research, and development in the domains of particle...
Subduction zones link the mass transfer, element cycling and magma differentiation processes in which the release of C-O-H fluids from the slab plays a key role. Geochemical characteristics of basaltic magmas suggest that olivine-poor lithologies like pyroxenites may be produced from the reaction between subducting slab and ambient mantle peridotite in conjunction with variable additions of a...
Synthesis and characterization of Iron tungstate Nanoparticles as a Photocatalyst and Nano-adsorbent
O.J. Ajala1,3, J.O. Tijani1,3, R.B Salau1, A.S. Abdulkareem1,2
1 Department of Chemistry, Federal University of Technology, P. M. B. 65, Bosso Campus, Minna, Niger state, Nigeria.
2 Department of Chemical Engineering, Federal University of...
Sociality in the vertebrate fossil record is a dynamic and fast-expanding area of research. Natural history observations of living animals are crucial for understanding and categorising sociality, but these observations are not feasible for extinct species. Some monotaxic bonebeds may provide unique opportunities to conceptualise the social behaviours of these extinct animals. An unusual...
To be added
Fibre optic sensing (FOS) is being developed for in-core, online, real-time sensing of state parameters for a nuclear reactor at full power. This study focusses on assessing the damage incurred by optical fibres when exposed to a mixed radiation field in a nuclear reactor. Both the high neutron flux and the ionizing radiation in a nuclear reactor can cause physical damage to optical fibres by...
NEutrons and PHotons Elevating Worldwide Science (NEPHEWS) delivers access to the world-class collective of Europe’s premiere open advanced neutron (N), synchrotron (SR) and free-electron laser (FEL) complementary research infrastructures (RI), to promote curiosity driven excellence in research. In NEPHEWS the RI institute a novel approach with their 40k+ user base of scientists through Users...
A number of initiatives are in progress for creating and enhancing research and training via the utilization of synchrotron light sources and crystallography. For synchrotrons, there are the African Light Source, Greater Caribbean Light Source, and Central Asian Synchrotron Light Source inititiaves. For crystallography research and training hubs, there are X-TechLab in Benin (currently...
Carbon dioxide (CO2) is a major greenhouse gas that significantly contributes to climate change, highlighting the urgent need for effective capture and conversion technologies ¹. This research explores the development of palladium-immobilized metal-organic frameworks (MOFs) as catalysts for transforming CO2 into formate, a valuable chemical for various industrial applications ². By utilizing...
Nowadays, one of the most intensive investigation subject in field of materials science is organic-inorganic salts(OIHSs) of owing to their intriguing aesthetic structures and their numerous potential applications as polyfunctional materials [1]. With respect to the very large number of homometallic oxalatometalate(III) salts, the heterometal oxalato-bridged complexes have been much less...
Synchrotron techniques have been used extensively to characterize the structure and interactions of the perovskite crystals and their complexes with both ex situ/in situ approaches. From the Grazing Incident Wide Angle X-ray Scattering/Small Angle X-ray Scattering (GIWAXS/GISAXS), literature reports the chemical pathways from the plumbate intermediates or meta-stable phase to perovskite...
Barium titanate (BaTiO3) has great prospects in integrated and high-performance electro-optic (EO) devices due to its large EO coefficient and its ability to fabricated as thin films on commercially substrates using conventional deposition techniques. However, when grown as films, the EO performance of BaTiO3 considerably degrades with minimal improvement upon adjusting deposition parameters....
Crimean-Congo haemorrhagic fever (CCHF) is a life-threatening anthropo-zoonosis that is characterized by high fatality rates 5-40%. Currently there are no approved vaccines or treatment available. Recently, antibody-based therapies have proved promising approaches to mitigating severe disease caused by other haemorrhagic viruses . CCHFV is made up of two structural glycoproteins, Gc and Gn,...
ZnO and Zn1-(y+x) O /CuyTix , (Ti, Cu, Cu/Ti-doped ZnO) were synthesized by modified oxalate route using carambola fruit juice as a precipitating agent. The wurtzite hexagonal structure formed saw the space group change from P63mc to p3 with crystallite sizes varying from 15.1 to 17.5 nm. Infrared spectra (IR)of the single molecular precursor, indicated the formation of metallic oxalates. The...
HIV-1 protease (HIV PR) is an aspartic protease which is considered vital in the cleaving of new viral polyprotein into functional units [1]. These polyproteins are needed in the maturation stage of the viral replication cycle to infect other host cells, this makes the HIV PR a significant drug target for possible therapeutic agents [2]. Due to the distinctive patterns of pharmaceutical drug...
X-ray phase contrast imaging: An alternative approach to laboratory-based sources
Gideon Chinamatira1, Kudakwashe Jakata2, Hillary Masenda1, Josephine Gutekunst3, Anton Du Plessis4,5
1University of the Witwatersrand, 1 Jan Smuts Ave, Braamfontein, Johannesburg, 2000, South Africa
2Diamond Light Source, Harwell Science and Innovation Campus, Fermi Ave, Didcot OX11 0DE, United...
A study aimed at unravelling arsenic (As) speciation in the carbonate sediments and the total suspended particulate (TSP) occurring at the Carletti spring system (CSS), part of the larger Bullicame (Viterbo, Central Italy) system, by means of XAS spectroscopy, has been undertaken.
In the CSS, As occurs as a geogenic anomaly, its mobility and speciation being likely affected by inorganic...
- Introduction
The project focuses on training Machine Learning (ML) algorithms to detect pulmonary Tuberculosis (TB) infections in clinical imaging. We have identified 5 publicly available datasets of TB infected lung radiographs in medical literature. These datasets have been used repeatedly to train ML algorithms to detect TB.1 The main reason for improvements in accuracy of TB...
Sotirios Charisopoulos, Danas Ridikas, Alessandro Migliori
Physics Section, Division of Physical and Chemical Sciences
Department of Nuclear Sciences and Applications, International Atomic Energy Agency
Vienna International Centre, PO Box 100, A-1400 Vienna, Austria
Promotion of nuclear applications for peaceful purposes and related capacity building is among the missions of...
Emileo Naicker1, Caren Billing1,2, David G. Billing1,2
1 Molecular Science Institute, School of Chemistry,University of the Witwatersrand, Johannesburg, South Africa
2 DSI-NRF Centre of Excellence in Strong Materials, University of the Witwatersrand, Private Bag X3, Johannesburg, 2050, South Africa
emileo.naicker1@students.wits.ac.za
Fuel cells provide a...
Introduction
Recent developments in plasma wakefield technology have enhanced the potential of compact particle accelerators with high energy efficiency and minimal energy spread. At the FLASHForward facility at Deutsches Elektronen-Synchrotron (DESY), researchers have experimentally validated optimal beam loading in a nonlinear plasma wakefield, achieving excellent energy-transfer...
Introduction
The flexibility of diarylformamidine ligands to coordinate either as monodentate or as chelating ligands render their respective complexes very promising for application in catalysis [1]. N-hydroxy-N,N’-diarylformamidine complexes have been reported by our research group to be significant initiators in ring opening polymerization [2]. In this work, we explore the synthesis and...
1. Introduction
The seismic model, the Preliminary Reference Earth Model (PREM) [1], provides the profiles of sound velocity and density as a function of depth. Comparing the model with laboratory high-pressure experiments, pure iron cannot explain the sound velocity and density of the PREM core [e.g., 2]. Therefore, the density deficit of the core suggests some light elements may be...
1.Introduction
Ensuring the sustainability of cement production is crucial in the construction sector. One effective approach to achieve this goal is by integrating suitable additives into traditional cement formulations. Layered Double Hydroxides (LDHs) offer promising potential as additives, as they can capture CO$_2$, enhance the carbonation resistance of cement, and remove CO$_2$,...
