Browsing Faculty of Natural Science by Title
Now showing items 699-718 of 2597
-
Effect of a material science course on the perceptions and understanding of teachers in Zimbabwe regarding content and instructional practice in design and technology
(2007)The purpose of this study was therefore to address the following primary research question: ‘What effect would a specially designed, developed, implemented and evaluated Material Science (MS) course have on serving teachers ... -
Effect of basella alba and hibiscus macranthus on tm4 sertoli cell functions
(University of the Western Cape, 2009)Basella alba (BA) and Hibiscus macranthus (HM) are used by traditional healers in Cameroon to treat male sexual fertility problems. Previous studies showed that in vivo administration of the leaf extracts of both plants ... -
The effect of blocking selected endocytic mechanisms on heterologous protein secretion in the yeast saccharomyces cerevisiae
(University of the Western Cape, 2018)The yeast Saccharomyces cerevisiae is considered a good host used for heterologous protein production due to the organism’s microbial safety, rapid growth and eukaryotic post- translational processing. As a fermentative ... -
The effect of chitosan in the germination and growth of sorghum bicolor under salt stress
(University of the Western Cape, 2022)The agricultural sector has been facing enormous challenges including reduced crop yield and increased food production demand to cater for the growing population. Crop production is severely affected by abiotic and biotic ... -
The effect of cissampelos capensis extract on prostate cancer, sertoli and leydig cell function
(University of the Western Cape, 2014)This study investigated the effect of the C. capensis extract (0.001, 0.01, 0.1, 1, 10, 100 1000 μg/ml) on LNCaP prostate cancer, TM3 Leydig and TM4 Sertoli cells for 24 and 96 hours. The following parameters were investigated: ... -
Effect of cissampelos capensis rhizome extract on human sperm capacitation and acrosome reaction
(2013)Cissampelos capensis, is commonly known by the Afrikaans name ‟dawidjies” or ‟dawidjieswortel”. C. capensis is the most important and best known medicinal plant of the family Menispermaceae used by the Khoisan and other ... -
The effect of co-crystallization and polymorphism on the physicochemical properties of amoxicillin tri-hydrate
(University of the Western Cape, 2013)Many active pharmaceutical ingredients (APIs) have poor physicochemical properties such as solubility, dissolution and chemical stability. Several strategies are used to enhance and improve these properties of the API. ... -
The effect of copper on the growth, development and chemical composition of some dryland wheat cultivars
(University of the Western Cape, 2005)Heavy metal accumulation in arable land as a result of mining activities, pesticides and fertilisers has become a global concern. Steinkopf and Concordia in the Northern Cape are well-known for subsistence farming, but ... -
The effect of diet on the mucus histochemistry and adjacent histology of the digestive tract in Vervet monkeys.
(University of the Western Cape, 1993)There is a need for defined models of human nutritional disorders partly because serious misconceptions about models are common amongst researchers. Historically a large variety of species has been used including primates, ... -
The effect of dossier farming on medicine registration in South Africa.
(University of the Western Cape, 2020)In this study, the researcher wanted to determine the effect of dossier farming in medicine registration in South Africa by comparing the number of generic registrations of products tendered for the government for the ... -
The effect of doxorubicin encapsulated chitosan alginate nanoparticles and curcumin on multidrug resistant colon cancer cell lines
(University of the Western Cape, 2024)Purpose: Although chemotherapeutic drugs have improved the survival rate of patients diagnosed with colorectal cancer, resistance to chemotherapy frequently leads to therapeutic failure and poor patient outcomes. Multidrug ... -
Effect of Eurycoma longifolia (Tongkat Ali) on the prostate cancer cell line LNCaP
(2013)Eurycoma Longfolia Jack, also known as Tongkat Ali (TA) is a tropical plant belonging to the family of Simaroubaceae is widely distributed in South East Asian countries. The extracts of TA have been proven to have ... -
The effect of exogenous growth regulators on salinity tolerance in Erucastrum strigosum
(University of the Western Cape, 2003)Randomized block experiments were conducted to examine the putative amelioratory effects of kinetin or gibberellic acid at concentrations (0, 4, 12.5, 40, and 125 μM) in Erucastrum strigosum plants subjected to a salinity ... -
The effect of flavonoids on the in vitro activity of antibiotics against Staphylococcus aureus
(University of the Western Cape, 2012)Staphylococcus aureus is a Gram-positive coccus belonging to the Stapylococcaeae family. S. aureus causes a wide range of infections that range from skin infections to lifethreatening infections such as pneumonia and ... -
The effect of flow field design on the degradation mechanisms and long term stability of HT-PEM fuel cell
(University of the Western Cape, 2018)Fuel cells are long term solution for global energy needs. In current fuel cell technologies, Proton Exchange Membrane (PEM) fuel cells are known for quick start-up and ease of operation compared to other types of fuel ... -
Effect of Fusarium oxysporum on the physiological and molecular responses of cowpea plants
(The University of the Western Cape, 2017)Cowpea is a tropical, drought-tolerant legume crop that is indigenous to Africa. The crop is of nutritional importance to both animals and humans as part of their diet. Stress to crop plants is defined as any factor that ... -
The effect of glycine supplementation on the skeletal muscle properties of captive cheetahs (Acinonyx jubatus)
(University of the Western Cape, 2022)The fastest known land mammal – the cheetah, possesses many anatomical adaptations that enables high-speed running. Current literature regarding the physiological aspects that facilitate their incredible sprinting ability, ... -
The effect of gonadotropin-releasing hormones (GnRH) I & II on sperm motility and acrosome status of the Vervet monkey (Chlorocebus aethiops) in vitro
(University of the Western Cape, 2006)Gonadotropin Releasing Hormone (GnRH) is a hypothalmic decapeptide, which regulates mammalian gonadotropin secretions by binding to specific, high affinity receptors in the pituitary. Two forms of GnRH (GnRH I and GnRH II) ... -
Effect of inhaled cationic poly-peptides on respiratory mechanics in the isolated perfused rat lung
(University of the Western Cape, 1998)The inhalation route is increasingly being considered as a viable option to deliver protein drugs into the body, but there has been few studies dealing with the safety of this strategy. The results of in vitro studies have ... -
The effect of insulin, leptin and inflammatory cytokines on reproductive health and hypogonadism in males diagnosed with the metabolic syndrome
(2013)The metabolic syndrome (MetS) is a collection of various metabolic, hormonal and immunological risk factors that cluster together, closely related to poorly understood phenomena such a hyperinsulinaemia (insulin resistance), ...