Browsing Faculty of Natural Science by Title
Now showing items 721-740 of 2560
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The effect of maternal oral health on pregnancy outcomes
(University of the Western Cape, 2014)Adverse pregnancy outcomes such as preterm birth and low birth weight are major causes of maternal and neonatal morbidity and mortality. Increasing evidence points to an association between periodontal disease and adverse ... -
The effect of methamphetamine on the blood-testis barrier
(University of the Western Cape, 2018)Introduction The blood-testis barrier (BTB) is formed by tight junctions between adjacent Sertoli cells. The barrier formed by these tight junction helps to create a specialized environment for spermatogenesis and provide ... -
The effect of nicotine and prostaglandin A2 on the lung cancer cell line NCI-H157
(2009)Lung cancer is the most common fatal cancer in terms of both incidence and mortality in the world. The most important cause of lung cancer is exposure to tobacco smoke through active or passive smoking. Nicotine which is ... -
The effect of Nicotine exposure on aspects of liver Carbohydrate metabolism
(University of the Western Cape, 1989)The liver plays an important role in maintaining the blood glucose concentration. In this respect glycogenolysis and gluconeogenesis play an important role. Interference with these pathways may therefore have an effect on ... -
The effect of nigella sativa oil on male reproductive function in male Wistar rats exposed to an obesogenic diet
(University of Western Cape, 2020)Obesity is a growing public health concern globally, particularly in developed countries such as the United States (US). More than 30% of Americans are considered obese. In the past 20 years in America, incidence of ... -
The effect of particle size separation on the enrichment and recovery of rare earth elements from South African coal fly ash
(University of Western Cape, 2021)There has been increasing interest in finding alternative sources for Rare Earth Elements (REEs) due to their application in green energy and Coal Fly Ash (CFA) has been found to be a viable potential source. Thus ... -
The effect of phytonanotherapy on diabetic rats
(University of the Western Cape, 2021)Diabetes Mellitus is a major global health issue, affecting over 463 million adults in the world. Metformin is the standard drug administered to most people suffering fromdiabetes; however, this medication is contraindicated ... -
The effect of rooibos and green tea flavnoids on the physiology of TM3 Leydig cells
(University of the Western Cape, 2018)Camellia sinensis (C.sinesis) and Aspalathus linearis (A.linearis) are popular beverages consumed in many countries. Consumption of these plants may protect against cardiovascular disease, neurodegenerative disease, various ... -
Effect of simulated acid rain on seed germination and on growth and mineral nutrition of Lycopersicon esculentum var. Red kaki
(University of the Western Cape, 1993)The phenomenon of acid rain is not new. It has been active for more than a billion years (Abelson, 1983). The term "acid rain" was introduced as early as 1872 by Robert Angus Smith, the world's first air pollution control ... -
The effect of sunitinib on neuroblastoma and glioblastoma cell growth
(University of the Western Cape, 2020)Cancer is a global health catastrophe, with neuroblastoma, the most common solid childhood tumor, and glioblastoma, a deadly brain tumor, being aggressive and unresponsive to current treatment modalities. These tumors are ... -
Effect of synthetic methods on the characteristics and performance of IrO2 catalysts
(University of the Western Cape, 2022)For many years fossil fuel has been the primary source of energy worldwide though, the environment is negatively affected because of the high carbon dioxide (CO2) emissions associated with the use of fossil fuels. Hydrogen ... -
Effect of tea and herbal infusions on mammalian reproduction and fertility
(University of the Western Cape, 2013)Camellia sinensis (tea) and Aspalathus linearis (rooibos) may improve reproductive function owing to their antioxidant properties. To test this hypothesis, male and female rats were given 2% and 5% green tea (Gt), black ... -
Effect of the additional electron acceptor in hybrid ZnO: P3HT:PCBM spin-coated films for photovoltaic application
(University of the Western Cape, 2015)In a quest for low operational and maintenance cost solar cell devices, organic photovoltaics remain a potential source of energy worthy to be explored. In order to generate cost- effective electricity from solar energy, ... -
Effect of Tulbaghia violacea on the blood pressure and heart rate in male spontaneously hypertensive wistar rats
(University of the Western Cape, 2011)Tulbaghia violacea Harv. (Alliaceae) is a small bulbous herb which belongs to the family, Alliaceae, most commonly associated with onions and garlic. In South Africa (SA), this herb has been traditionally used in the ... -
Effect of zinc oxide nanoridge height on solar cell performance
(University of Western Cape, 2021)Environmentally friendly photovoltaic devices make use of solar radiation as the energy source to generate electricity. Organic solar cells (OSCs) have been making headway in the last decade due to their cost-effectiveness ... -
The effectiveness of using pictograms and text on medication labels at primary healthcare facilities in Cape Town
(University of the Western Cape, 2020)Medication labels are often the only information available to patients after obtaining medication 3 from the pharmacy or other healthcare practitioners. Inappropriately designed medicine labelling 4 contributes to poor ... -
Effects of acid concentration on the extraction of rare earth elements from South African Coal Fly Ash
(University of Western Cape, 2021)Coal is seen as a reliable and secure energy source in many countries around the world despite the development of a number of alternative sources of energy. A rise in global energy demand has led to an increase in coal ... -
The effects of anthropogenic disturbance upon African penguin colonies
(University of Western Cape, 2020)African penguin (Spheniscus demersus) mainland colonies are a popular tourist attraction in the Western Cape of South Africa. The African penguin population is in decline and the species is listed as endangered on the ... -
The effects of artificial and natural sweeteners on various physiological systems
(University of the Western Cape, 2011)This study aimed to investigate the effects of commercially available natural (sugar cane molasses, white sugar and brown sugar) and artificial (Canderel, Equal, Natreen, Sweetex, Splenda and Swheet) sweeteners on various ... -
The Effects of Cadmium and Lead on Phaseolus vulgaris
(University of the Western Cape, 2012)The demand for better quality produce by consumers is on the increase, as higher heavy metal concentrations pose a problem in agriculture. They result in decreased yield and unsuitable food for human consumption. This ...