Browsing by Title
Now showing items 7533-7552 of 19423
-
Extractives from the Meliaceae and Icacinaceae.
(1990)The wood, leaf and seed extracts of Apodytes dimidiata, Turraea floribunda and Turraea obtusifolia were examined. Two new limonoids belonging to the Toonafolin group were isolated from the seeds, two known havanensin-type ... -
Extractives from the Meliaceae and Melianthaceae, and investigations into enamine chemistry.
(1997)Part A of this thesis is an account of the extractives isolated from one member of the Melianthaceae and two members of the Meliaceae. Plants belonging to these families are known to produce compounds with medicinal ... -
Extractives from the Meliaceae and Ptaeroxylaceae.
(2001)This work is an account of the extractives from one member of the Meliaceae and one member of the Ptaeroxylaceae. In all, thirteen compounds have been isolated, of which four have not been described previously. Neobeguea ... -
Extractives from the Meliaceae and Simaroubaceae of Madagascar.
(2001)This work describes the isolation and structural elucidation of extractives from four species of the Meliaceae and one of the Simaroubaceae families. All five species examined are endemic to the island of Madagascar. One ... -
Extractives from the ptaeroxylaceae and the mesembryanthemaceae.
(2001)This work is an account of the investigations into the chemistry of two Cedrelopsis species from the Ptaeroxylaceae, Cedrelopsis grevei and Cedrelopsis microfoliata and a species from the Mesembryanthemaceae, Khadia alticola, ... -
Extractives of three southern African medicinal plants.
(1998)In this investigation the chemistry of three southern African plants used for medicinal purposes was investigated. The plants were Dioscorea dregeana, Avonia rhodesica and Equisetum ramossisimum. Extracts of all three ... -
Extradural spinal mass lesions in HIV sero-positive adults.
(2017)Abstract available in PDF file. -
Extrapulmonary tuberculosis at King Edward hospital : a descriptive retrospective study.
(2016)Background Globally, South Africa remains one of the top twenty high tuberculosis(TB) burden countries. In addition, South Africa has the highest burden of tuberculosis/Human Immunodeficiency virus (TB/HIV) coinfection in ... -
Extraversion, neuroticism and coping as variables in the stress and burnout process : a pilot study using a population of child care workers.
(1997)Personality, ways of coping and occupational burnout were examined within the context of child care work, using a number of self-report questionnaires. Subjects included 70 full-time child care workers from children's homes ... -
Extreme weather survival strategies for agriculturally based organisations : a case study of Blinkwater Mills.
(2017)Extreme weather conditions demand extreme weather survival strategies. In recent months, South Africa has been drastically affected by extreme weather conditions exasperated by the presence of the El Niño Southern Oscillating ... -
Eye movement desensitisation and reprocessing therapy in the treatment of sugars addiction (a derivative of heroin) : gaining control over cue reactivity and cravings.
(2021)Eye movement desensitization and reprocessing therapy (EMDR) developed by Francine Shapiro is an integrative psychotherapeutic approach that has been described as one of the most well researched forms of psychological ... -
Étude comparative sur le rôle de la langue et du lieu dans les œuvres autofictionnelles de deux auteures postcoloniales, Nina Bouraoui et Marita van der Vyver.
(2018)This dissertation compares and contrasts Nina Bouraoui and Marita van der Vyver, exploring the role of language and place in their quest for identity and a feeling of belonging. It provides three key theoretical insights ... -
Effect of coral reefs on wave attenuation and erosion: Mnemba Island, Zanzibar.
(2017)Global warming and sea level rise are some of the greatest threats humanity faces today with low-lying coral reef islands most vulnerable to these threats and their repercussions. This study focuses on the mechanisms that ... -
Fabricated honesty: an original collection of poems, including a critical examination of the impact of twentieth century confessional poetry on my writing.
(2018)This dissertation consists of two sections: a creative section and a theoretical section. The first section of this paper will be the creative section which consists of a collection of 40 original poems that can be generally ... -
Fabrication and characterization of metal oxide nanostructured thin film for photovoltaic application.
(2018)This study focused on fabrication and characterization of nanostructured metal oxide heterojunction solar cells for photovoltaic application. The study involved experimental fabrication of the device and modelling and ... -
Fabrication and characterization of solution processed thin film solar cells.
(2018)This research focused on developing new organic and inorganic semiconductor materials and techniques for use in design and fabrication of organic photovoltaic solar cells. Despite OPVs having benefitted from material ... -
Fabrication of affordable and sustainable solar cells using NiO/TiO2 P-N heterojunction.
(Hindawi., 2018)The need for affordable, clean, efficient, and sustainable solar cells informed this study. Metal oxide TiO²/NiO heterojunction solar cells were fabricated using the spray pyrolysis technique. The optoelectronic properties ... -
Fabrication of dye-sensitized solar cells using heteroatom-doped reduced graphene oxide, and metal oxide-based nanocomposites as a counter electrode or photoanode.
(2021)Recent advancements in technology have led to an exponential increase in global energy demand. Non-renewable energy sources have been widely used to meet this demand; however, they are prone to depletion ...