• Phytoplankton photophysiology utilities: A python toolbox for the standardization of processing active chlorophyll-a fluorescence data

  

  Author: Ryan-Keogh, Thomas J Date: Jul 2021 The uptake and application of single turnover chlorophyll fluorometers to the study of phytoplankton ecosystem status and microbial functions has grown considerably in the last two decades. However, standardization of measurement protocols, ... Read more
• Blockchain-based security model for LoRaWAN firmware updates

  

  Author: Mtetwa, NS ; Tarwireyi, P ; Sibeko, CN ; Abu-Mahfouz, Adnan MI ; Adigun, M Date: Jan 2022 The Internet of Things (IoT) is changing the way consumers, businesses, and governments interact with the physical and cyber worlds. More often than not, IoT devices are designed for specific functional requirements or use cases without paying ... Read more
• Comparison of the antiviral activity of the microbicide candidate griffithsin and its tandemers derivatives against different modes of HIV-1 transmission

  

  Author: Alexander, Kabamba ; Malatji, Kanyane ; Mulaudzi, Takalani Date: May 2020 Tandemers 2MG, 2MG3, 3MG and 4MG are derivatives of the potent anti-HIV-1 microbicide candidate griffithsin (GRFT). We compared these compounds anti-HIV-1 activity to GRFT using the viruses CAP206.08 and CAAN5342.A2 that have decreased ... Read more
• Stirring of sea-ice meltwater enhances submesoscale fronts in the Southern Ocean

  

  Author: Giddy, Isabelle ; Swart, S ; Du Plessis, Marcel ; Thompson, AF ; Nicholson, Sarah-Anne Date: Mar 2021 In the sea-ice-impacted Southern Ocean, the spring sea-ice melt and its impact on physical processes set the rate of surface water mass modification. These modified waters will eventually subduct near the polar front and enter the global ... Read more
• The influence of stemming practice on ground vibration and airblast

  

  Author: Mpofu, Mvikel ; Ngobese, Sibusiso SG ; Maphalala, B ; Roberts, David P ; Khan, Sumaya Date: Jan 2021 This paper details an assessment of stemming practices at a South African opencast coal mine and their influence on ground vibration and air blast. Quantitative and qualitative analysis methods were used for the study. The parameters assessed ... Read more
• Adapting environmental management systems for African ports

  

  Author: Arabi, Sumaiya ; Taljaard, Susan ; Weerts, Steven P Date: Mar 2022 Globally sustainable environmental practices in ports have been linked to socio-economic benefits. While African ports are increasingly acknowledging environmental issues and starting to address these in environmental policy, many are still ... Read more
• The IPCC assessment report six working group 1 report and southern Africa: Reasons to take action

  

  Author: Engelbrecht, FA ; Monteiro, Pedro MS Date: Nov 2021 The release of the Intergovernmental Panel on Climate Change (IPCC) Assessment Report Six (AR6) Working Group I (WG1) report in August 2021 brought to completion what is arguably the most thorough and scrutinised assessment of climate knowledge ... Read more
• Winter Biogeochemical Cycling of Dissolved and Particulate Cadmium in the Indian Sector of the Southern Ocean (GEOTRACES GIpr07 Transect)

  

  Author: Cloete, R ; Loock, JC ; Van Horsten, Natasha R ; Fietz, S ; Mtshali, TN ; Planquette, H ; Roychoudhury, AN Date: Jul 2021 Winter distributions of dissolved cadmium (dCd) and particulate cadmium (pCd) were measured for the first time in the Indian sector of the Southern Ocean thereby contributing a unique spatial and seasonal dataset. Seven depth profiles, between ... Read more
• Remote Sensing of Aerosol Optical Depth (AOD) over Pretoria, South Africa

  

  Author: Faniso, Zimbini ; Magimisha, E ; Malatji, T Date: Jul 2021 This paper presents the analysis of Aerosol Optical Depth (AOD) level data monitored through the Cimel CE 318A Sun-photometer over the year seasons of 2014. The data was collected at the Council for Scientific and Industrial Research (CSIR), ... Read more
• Biodiesel production potential of an indigenous South African microalga, Acutodesmus bajacalifornicus

  

  Author: Grobler, J ; Harding, KG ; Smit, Monique ; Ramchuran, Santosh O ; Durand, P ; Low, M Date: Sep 2021 In this study, a South African indigenous microalga Acutodesmus bajacalifornicus was evaluated in different cultivation media. Eleven potential cultivation media were identified and tested on A. bajacalifornicus, a potential source for biodiesel ... Read more
• Identifying surface degradation, mechanical failure, and thermal instability phenomena of high energy density Ni-rich NCM cathode materials for lithium-ion batteries: A review

  

  Author: Geldasa, FT ; Kebede, Mesfin A ; Shura, MW ; Hone, FG Date: Feb 2022 Among the existing commercial cathodes, Ni-rich NCM are the most promising candidates for next-generation LIBs because of their high energy density, relatively good rate capability, and reasonable cycling performance. However, the surface ... Read more
• Ex vivo drug sensitivity screening in multiple myeloma identifies drug combinations that act synergistically

  

  Author: Giliberto, M ; Thimiri Govindaraj, Deepak B ; Cremaschi, A ; Skånland, SS ; Gade, A ; Tjønnfjord, GE ; Schjesvold, F ; Munthe, LA ; Taskén, K Date: Mar 2022 The management of multiple myeloma (MM) is challenging: An assortment of available drug combinations adds complexity to treatment selection, and treatment resistance frequently develops. Given the heterogeneous nature of MM, personalized ... Read more
• Advancing cybersecurity capabilities for South African organisations through R&D

  

  Author: Dawood, Zubeida C ; Mkuzangwe, Nenekazi NP Date: Mar 2022 There is a growth of cyber-attacks in South Africa. Seeing that there are over 38 million Internet users in South Africa, this is no surprise. The South African government has published the National Cybersecurity Policy Framework (NCPF) and ... Read more
• The combination of low level laser therapy and efavirenz drastically reduces HIV infection in TZM-bl cells

  

  Author: Lugongolo, Masixole Y ; Manoto, Sello L ; Ombinda-Lemboumba, Saturnin ; Maaza, M ; Mthunzi-Kufa, Patience Date: Jun 2020 Human immunodeficiency virus (HIV) infection remains a global health challenge despite the use of antiretroviral therapy, which has led to a significant decline in the mortality rates. Owing to the unavailability of an effective treatment to ... Read more
• Evaluation of waste chicken feather protein hydrolysate as a bio-based binder for particleboard production

  

  Author: Fagbemi, Olajumoke D ; Sithole, Bishop B Date: Sep 2021 The present study investigate the beneficiation potential of extracted keratin protein hydrolysate from chicken feather waste biomass as bio-adhesive for the production of particleboard. Chicken feathers were hydrolyzed using hybrid alkaline ... Read more
• Co-existence of Pd, Bi2O3 and CuO supported on porous activated biocarbon for electrochemical conversion and energy storage

  

  Author: Fuku, Xolile G ; Modibedi, Remegia M ; Mkhohlakali, Andile ; Mathe, Mahlanyane K Date: Aug 2021 The co-existence of metal oxides (MO) and activated carbon (AC) causes changes in the catalytic behaviour and activity which would contribute greatly to a number of applications. Pd–AC/Bi2O3/CuO synthesized via the green process was used as ... Read more
• Influence of Co doping on physiochemical properties of MnFe2O4/C nano compounds toward oxygen reduction reaction

  

  Author: Matseke, Mphoma, S ; Zheng, Haitao ; Mathe, Mkhulu K ; Carleschi, E ; Doyle, B Date: Dec 2021 Recently, several researchers have found that the manganese ferrite (MnFe2O4) nanoparticle can be a promising candidate for the oxygen reduction reaction (ORR). However, the MnFe2O4 nanoparticles still face challenges on their ORR activity ... Read more
• The response of military lower extremity and Hybrid III leg using the Hybrid III and EuroSID-2 ATD in vertical loading impacts

  

  Author: Pandelani, Thanyani A ; Modungwa, Dithoto M Date: Apr 2022 Objective: Antivehicular landmines (AVLs) and underbelly improvised explosive devices (IEDs) are found to be some of the major threats for military vehicles and their occupants. Anthropomorphic test devices (ATDs) such as the 50th percentile ... Read more
• Evaluating available solar photovoltaic business opportunities in coal phase-out regions – An energy transition case of Steve Tshwete Local Municipality in South Africa

  

  Author: Semelane, Maphumzane S ; Nwulu, N ; Kambule, N ; Tazvinga, H Date: Aug 2021 The global energy transition may have unintended consequences for businesses that provide services to the coal sector. Businesses operating in coal regions like Steve Tshwete Local Municipality (STLM) might be left stranded due to the coal ... Read more
• Machine learning modelling of crop structure within the Maize Triangle of South Africa

  

  Author: Naidoo, Laven ; Main, Russell, S ; Cho, Moses, A ; Madonsela, Sabelo ; Majozi, Nobuhle, P Date: Jan 2022 Maize has been identified as a strategic commodity for the reduction of poverty and enhancement of food security in the African continent. Climate variability and difficult economic conditions are pressuring farmers to produce higher (maize) ... Read more

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