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The influence of an Acacia karroo tree on grass production in its vicinity
Item type: Journal Article • Journal: Journal of the Grassland Society of Southern Africa • Authors: G.C. Stuart‐Hill --- Department of Agriculture and Water Supply (East Cape Region), N.N. Tainton --- Department of Agriculture and Water Supply (East Cape Region), H.J. Barnard --- Department of Agriculture and Water Supply (East Cape Region),The investigation was concerned with the impact of an Acacia karroo tree on the productivity of the surrounding herbaceous layer. -
An overview of insulin pump therapy: appropriate use of an expensive resource
Item type: Journal Article • Journal: Journal of Endocrinology, Metabolism and Diabetes of South Africa • Authors: VJ Brown --- Diabetes Education, Centre for Diabetes and Endocrinology,Insulin pump therapy is an option for intensive insulin therapy in patients with type l diabetes who meet the criteria described in this article. Pump therapy may assist in the reduction of haemoglobin A1c (HbA1c) and the frequency of severe... -
Elective use of intra-aortic balloon pumping during Whipple's procedure in a patient with ischaemic heart disease
Item type: Journal Article • Journal: Southern African Journal of Anaesthesia and Analgesia • Authors: K Subramanayam --- Department of Anaesthesiology, B Babu --- Department of Cardiothoracic Surgery, R Bhat --- Department of Surgical Gastroenterology, S Reddy --- Department of Cardiothoracic Surgery, IndiaA 61-year-old man with diabetes who presented with carcinoma of the head of the pancreas was detected to have severe coronary artery disease. Coronary artery bypass grafting was advised. In view of the urgent nature of the abdominal surgery, resection... -
Nonerosive reflux disease as a presentation of gastro-oesophageal reflux disease
Item type: Journal Article • Journal: South African Family Practice • Authors: WM Simmonds --- Department of Internal Medicine,Up to 70% of patients with typical symptoms of gastro-oesophageal reflux disease have neither definite endoscopic oesophageal erosions nor Barrett's oesophagus on upper endoscopy. These patients suffer from nonerosive reflux disease (NERD). There is no gold standard for the diagnosis... -
The use of technology in a water treatment process
Item type: Journal Article • Journal: African Journal of Science, Technology, Innovation and Development • Authors: Magdi Osman Ali --- Faculty of Science and Arts and Community - Muhyil Assir, Saudi Arabia Abdalrasol J. Alzubaidi --- Faculty of Engineering, SudanAutomation is an essential part of producing drinking water in the necessary quantities at the right time with high levels of efficiency in water production, energy and chemical materials consumption. The primary objective of this paper is to propose strategies... -
Design of a hand water pump using a quick-return crank mechanism
Item type: Journal Article • Journal: African Journal of Science, Technology, Innovation and Development • Authors: C. A. Okoronkwo --- Department of Mechanical Engineering, Nigeria B. O. Ezurike --- Department of Mechanical Engineering, Nigeria R. Uche --- Department of Mechanical Engineering, Nigeria J. O. Igbokwe --- Department of Mechanical Engineering, Nigeria O. N. Oguoma --- Department of Mechanical Engineering, NigeriaThe detailed design procedure for a quick-return mechanism hand water pump is presented. The system designed is basically a modification to reciprocating lift pumps also known as India mark III. The modified pump is operated by the up and down... -
Wind energy potential and economic evaluation of WPS using WECSs in three selected locations of Northern Ethiopia
Item type: Journal Article • Journal: African Journal of Science, Technology, Innovation and Development • Authors: Shiva Prashanth Kumar Kodicherla --- Department of Civil Engineering, College of Engineering & Technology, Ethiopia Satyanarayana Gaddada --- Department of Electrical and Computer Engineering, College of Engineering & Technology, Ethiopia Nagaraju Shaik --- Department of Construction Management, College of Engineering & Technology, EthiopiaThis paper analyzes wind energy potential and economic evaluation of water pumping system (WPS) employed by various wind energy conversion systems (WECSs). The wind speed data gathered from three different locations of Northern Ethiopia are analyzed using the Weibull probability... -
Modelling and performance of an automated small hybrid plant
Item type: Journal Article • Journal: African Journal of Science, Technology, Innovation and Development • Authors: Samuel Ilupeju --- Discipline of Mechanical Engineering, Durban, South Africa Freddie Inambao --- Discipline of Mechanical Engineering, Durban, South Africa Yetunde Ilupeju --- Discipline of Mechanical Engineering, Durban, South Africa Taha Selim Ustun --- Electrical Engineering, Carnegie Mellon University, USASmall rivers that can generate useful quantities of electricity are freely and proportionally distributed in Africa. Thousands of potential sites are available in South Africa, capable of generating hundreds of megawatts. Small hydropower generation is not a new approach in... -
Xylocaine® 10% Pump Spray as topical anaesthetic for venepuncture pain
Item type: Journal Article • Journal: Southern African Journal of Anaesthesia and Analgesia • Authors: A van Straten --- Department of Anaesthesiology and Critical Care, South Africa AA Murray --- Department of Anaesthesiology and Critical Care, South Africa AI Levin --- Department of Anaesthesiology and Critical Care, South AfricaBackground: Cutaneous analgesia for venepuncture pain can be achieved using various topically applied local anaesthetic formulations. Xylocaine® 10% Pump Spray containing lignocaine hydrochloride and 95% ethanol is exclusively recommended for mucosal anaesthesia. However, this formulation is readily able to penetrate... -
The behavioural response of an estuarine teleost (Cape stumpnose Rhabdosargus holubi) to angler bait collection in two adjacent Eastern Cape estuaries, South Africa
Item type: Journal Article • Journal: African Journal of Marine Science • Authors: EC Butler --- Rhodes University, South Africa B van Heerden --- Rhodes University, South Africa MW Farthing --- Rhodes University, South Africa A-R Childs --- Rhodes University, South Africa WM Potts --- Rhodes University, South AfricaReports of learned behavioural adaptations of wild Cape stumpnose Rhabdosargus holubi (family Sparidae) were investigated in two estuarine systems in the Eastern Cape Province, South Africa. Underwater observational trials using video cameras demonstrated that fish rapidly responded to bait collection...