Log in

Relevant bibliographies by topics / Sutherlandia / Dissertations / Theses

To see the other types of publications on this topic, follow the link: Sutherlandia.

Dissertations / Theses on the topic 'Sutherlandia'

Author: Grafiati

Published: 4 June 2021

Last updated: 18 February 2022

Create a spot-on reference in APA, MLA, Chicago, Harvard, and other styles

Select a source type:

Consult the top 50 dissertations / theses for your research on the topic 'Sutherlandia.'

Next to every source in the list of references, there is an 'Add to bibliography' button. Press on it, and we will generate automatically the bibliographic reference to the chosen work in the citation style you need: APA, MLA, Harvard, Chicago, Vancouver, etc.

You can also download the full text of the academic publication as pdf and read online its abstract whenever available in the metadata.

Browse dissertations / theses on a wide variety of disciplines and organise your bibliography correctly.

1

Daghman, Mohamed Ibrahim. "Comparison of the physicochemical characteristics and flavonoid release profiles of Sutherlandia frutescens phytosomes versus liposomes." University of the Western Cape, 2016. http://hdl.handle.net/11394/5055.

Full text

Abstract:

Magister Pharmaceuticae - MPharm<br>Sutherlandia frutescens is a traditional plant medicine widely used in South Africa. Traditionally, the leaves of S. frutescens are mainly used as a tea, but these traditional dosage forms have several disadvantages, including that they are not particularly convenient to prepare and store, encourage dosage inaccuracy and are highly susceptible to microbial contamination. To solve these problems, dried aqueous extract forms, e.g. freeze dried aqueous extract (FDAE) of S. frutescens were prepared, but they, in turn, may still suffer from instability

APA, Harvard, Vancouver, ISO, and other styles

2

Mbamalu, Oluchi Nneka. "Content levels, in vitro dissolution and predicted bioavailability of flavonoids from Sutherlandia frutescens leaf powder and aqueous extracts." University of the Western Cape, 2015. http://hdl.handle.net/11394/4817.

Full text

Abstract:

Philosophiae Doctor - PhD<br>Various formulations of the popular South African medicinal plant, Sutherlandia frutescens,are commercially available, with no documented specifications for quality assessment. With plans already underway for a clinical trial to assess its efficacy in HIV patients, there is a need for scientifically validated tests for the quality control of products of this plant. Chemical constituents of the plant are many and varied but it is still unclear which might be the most appropriate ones to monitor for activity or to describe the quality of the plant’s products. For qua

APA, Harvard, Vancouver, ISO, and other styles

3

Kisten, Najwa. "The immune-modulating activity of Sutherlandia frutescens." Thesis, University of the Western Cape, 2010. http://etd.uwc.ac.za/index.php?module=etd&action=viewtitle&id=gen8Srv25Nme4_6371_1299578884.

Full text

Abstract:

<p>The aim of this study was to investigate the effects of Sutherlandia frutescens on the inflammatory response and T cell differentiation in vitro using cytokines as biomarkers. Whole blood cells containing various concentrations of Sutherlandia frutescens were stimulated in vitro with either Lipopolysaccharide (LPS) or Phytohaemagglutinin (PHA). Results show that Sutherlandia frutescens is not toxic at any of the concentrations tested. The addition of Sutherlandia frutescens at high concentrations to the stimulated whole blood cell cultures reflects a significant down regulation of Interleuk

APA, Harvard, Vancouver, ISO, and other styles

4

Adefuye, Ogheneochuko Janet. "Anti-diabetic and phytochemical analysis of sutherlandia frutescens extracts." Thesis, Nelson Mandela Metropolitan University, 2016. http://hdl.handle.net/10948/3549.

Full text

Abstract:

In Africa, the importance of medicinal plants in folklore medicine and their contribution to primary healthcare is well recognized. Across the continent, local herbal mixtures still provide the only therapeutic option for about 80% of the population. The vast floral diversity and the intrinsic ethnobotanical knowledge has been the backbone of localized traditional herbal medical practices. In Africa, an estimated 5400 of the 60000 described plant taxa possess over 16300 therapeutic uses. Similarly, with a therapeutic flora comprising of approximately 650 species, herbal medical practitioners i

APA, Harvard, Vancouver, ISO, and other styles

5

Clarke, Stephen. "Liver steatosis and insulin-resistance : reversal by Sutherlandia frutescens." Thesis, Nelson Mandela Metropolitan University, 2014. http://hdl.handle.net/10948/d1020788.

Full text

Abstract:

Type 2 diabetes mellitus (T2DM) is rapidly emerging as one of the greatest global health issues of the 21st century. Insulin-resistance is a condition associated with T2DM and in the cell it is defined as the inadequate strength of insulin signalling from the insulin receptor downstream to the final substrates of insulin action involved in multiple metabolic, gene expression, and mitogenic aspects of cellular function. To investigate the potential mechanisms involved in the development of insulin-resistance, two in vitro liver cell models were established using palmitate or a combination of in

APA, Harvard, Vancouver, ISO, and other styles

6

Chen, Yi-Chun. "Bioactivities of selected Sutherlandia frutescens (L.) R. Br. leaf extracts." Diss., Columbia, Mo. : University of Missouri-Columbia, 2007. http://hdl.handle.net/10355/5035.

Full text

Abstract:

Thesis (M.S.)--University of Missouri-Columbia, 2007.<br>The entire dissertation/thesis text is included in the research.pdf file; the official abstract appears in the short.pdf file (which also appears in the research.pdf); a non-technical general description, or public abstract, appears in the public.pdf file. Title from title screen of research.pdf file (viewed on October 23, 2007) Includes bibliographical references.

APA, Harvard, Vancouver, ISO, and other styles

7

Egbichi, Ifeanyi M. "An investigation into the bioactivity of Sutherlandia frutescens (Cancer bush)." Thesis, Stellenbosch : University of Stellenbosch, 2009. http://hdl.handle.net/10019.1/1777.

Full text

Abstract:

Thesis (MSc (Biochemistry))--University of Stellenbosch, 2009.<br>Sutherlandia frutescens (S. frutescens), sub-species microphylla, is a member of the Fabacea family and is used as a herbal remedy for the treatment of several ailments which include influenza, diabetes, cancer, tuberculosis, chronic fatigue syndrome, rheumatoid arthritis, anxiety, clinical depression, and more recently, those living with human immunodeficiency virus/ acquired immune deficiency syndrome (HIV/AIDS) (1-4). Many of the symptoms of these ailments are associated with a perturbation of the stress response which m

APA, Harvard, Vancouver, ISO, and other styles

8

Whisgary, Darryn. "Effects of environmental growth conditions on the levels of sutherlandins 3 and 4 and sutherlandiosides B and D, in Sutherlandia frutescens (L.) R. Br." University of the Western Cape, 2011. http://hdl.handle.net/11394/5410.

Full text

Abstract:

>Magister Scientiae - MSc<br>Sutherlandia frutescens (L.) R. Br. (Fabaceae), indigenous to the Western Cape region of South Africa, is found in a Mediterranean-type climate known for its many environmental stressors that can influence the levels of metabolites found in plants. Sutherlandia frutescens contains many known potential active constituents among them, flavonoids such as sutherlandins 3 and 4 (Su3 and Su4) and terpenoids such as sutherlandiosides B and D (SuB and SuD). Whether the profiles and levels of Su3, Su4, SuB and SuD are significantly affected by the environmental factors foun

APA, Harvard, Vancouver, ISO, and other styles

9

Colling, Janine. "Towards understanding the metabolism of in vitro Sutherlandia frutescens (L.)R.Br. cultures." Thesis, Stellenbosch : University Stellenbosch, 2009. http://hdl.handle.net/10019.1/4601.

Full text

Abstract:

Thesis (MSc (Plant Biotechnology))--University of Stellenbosch, 2009.<br>ENGLISH ABSTRACT: Sutherlandia frutescens (L.) R. Br., also regarded as Lessertia frutescens, is a leguminous, perennial shrub indigenous to South Africa. Extracts prepared from the leaves have traditionally been used for the treatment of various diseases. Reports have also indicated that S. frutescens provides certain health benefits to cancer and HIV/AIDS patients. Analysis of extracts indicated the presence of several compounds (bitter triterpenoid glycosides, several flavonoids, amino acids, small amounts of saponi

APA, Harvard, Vancouver, ISO, and other styles

10

Harnett, Siobhán Margaret. "In vitro anti-HIV activities of Sutherlandia frutescens and Lobostemon trigonum extracts." Thesis, University of Port Elizabeth, 2004. http://hdl.handle.net/10948/347.

Full text

Abstract:

Currently, the approved anti-HIV drugs on the market only target the three HIV enzymes: reverse transcriptase, protease and more recently, integrase. Due to the limited nature of the current therapy, it is possible that a multi-drug resistant virus can emerge. The main concerns in developing countries however, are the expense and availability of the drugs and because of this, it is essential to investigate all alternatives. Traditional medicine offers many advantages as compared to allopathic treatment in so far as being relatively cheaper, accessible and it is broadly accepted in the populati

APA, Harvard, Vancouver, ISO, and other styles

11

Grobbelaar, Maria Catharina. "Influence of strigolactones and auxin on Sutherlandia (Lessertia) frutescens in vitro plant tissue cultures." Stellenbosch : Stellenbosch University, 2013. http://hdl.handle.net/10019.1/85701.

Full text

Abstract:

Thesis (MSc)--Stellenbosch University, 2013.<br>ENGLISH ABSTRACT: Sutherlandia frutescens (L.) R. Br., also known as Lessertia frutescens, is a leguminous shrub indigenous to southern Africa. Traditionally this plant has been used for the treatment of various ailments; current interest in this plant has escalated after it was announced that extracts could aid in the relief and treatment of HIV/AIDS. These extracts contain an array of metabolites, including sutherlandins, sutherlandiosides L-arginine, L-canavanine, asparagine, gamma-aminobutyric acid (GABA), and various other amino acids, which

APA, Harvard, Vancouver, ISO, and other styles

12

Müller, Adrienne Carmel. "African traditional medicine-antiretroviral interactions : effects of Sutherlandia frutescens on the pharmacokinetics of Atazanavir." Thesis, Rhodes University, 2011. http://hdl.handle.net/10962/d1013373.

Full text

Abstract:

In response to the urgent call for investigations into antiretroviral (ARV)-African traditional medicine (ATM) interactions, this research was undertaken to ascertain whether chronic administration of the ATM, Sutherlandia frutescens (SF) may alter the bioavailability of the protease inhibitor (PI), atazanavir (ATV), which may impact on the safety or efficacy of the ARV. Prior to investigating a potential interaction between ATV and SF in vitro and in vivo, a high performance liquid chromatography method with ultraviolet detection (HPLC-UV) was developed and validated for the bioanalysis of AT

APA, Harvard, Vancouver, ISO, and other styles

13

King, Maria Catharina. "Bioactive actinobacteria associated with two South African medicinal plants, Aloe ferox and Sutherlandia frutescens." University of Western Cape, 2021. http://hdl.handle.net/11394/8382.

Full text

Abstract:

Philosophiae Doctor - PhD<br>Actinobacteria, a Gram-positive phylum of bacteria found in both terrestrial and aquatic environments, are well-known producers of antibiotics and other bioactive compounds. The isolation of actinobacteria from unique environments has resulted in the discovery of new antibiotic compounds that can be used by the pharmaceutical industry. In this study, the fynbos biome was identified as one of these unique habitats due to its rich plant diversity that hosts over 8500 different plant species, including many medicinal plants. In this study two medicinal plants from the

APA, Harvard, Vancouver, ISO, and other styles

14

Wickens, Nicolas John. "Histopathological changes in male wistar rats maintained on a water-based sutherlandia frutescens extract." Thesis, Nelson Mandela Metropolitan University, 2012. http://hdl.handle.net/10948/4742.

Full text

Abstract:

In this study a standardized 46 week chronic drinking water toxicity protocol was used to elucidate the toxic potential of Sutherlandia frutescens (S. frutescens) using histopathologic, morphometric and transmission electron microscopic analysis. The histopathologic changes in the duodenum, heart, kidney, liver, lung, pancreas and spleen of male Wistar rats were evaluated. Fifty-four rats were randomly divided into four groups: Group 1 – Normal diet control (ND control), n=7, Group 2 – Normal diet + plant extract (ND + p), n=9, Group 3 – High fat diet control (HFD control), n=19Group 4 – High

APA, Harvard, Vancouver, ISO, and other styles

15

Fortuin, Melissa. "The medicinal plant Sutherlandia Frutescens regulates gene expression to reverse insulin resistace in rats." Thesis, Nelson Mandela Metropolitan University, 2013. http://hdl.handle.net/10948/d1020823.

Full text

Abstract:

Obesity can lead to Type 2 Diabetes, both conditions increase in association with physical inactivity and high-energy diets, resulting in elevated blood glucose, decreased insulin sensitivity and increased insulin resistance. Sutherlandia frutescens (S.frutescens), an anti-diabetic plant, reverses and prevents insulin resistance in a rat model and human cell culture model. Gene expression analysis in hepatocyte cultures, identified genes down regulated in insulin resistance and up regulated by S.frutescens. These included genes encoding vesicle transporter proteins, hypothesised to be linked t

APA, Harvard, Vancouver, ISO, and other styles

16

Hess, Meggan Sade. "Use of antioxidant activity and flavonoid levels to assess the quality of commercially available solid dose Sutherlandia frutescens products." Thesis, University of the Western Cape, 2010. http://etd.uwc.ac.za/index.php?module=etd&action=viewtitle&id=gen8Srv25Nme4_5979_1317643628.

Full text

Abstract:

The overall aims of this project were to assess the pharmaceutical quality and consistency of commercially available solid dose Sutherlandia frutescens containing products (viz. tablets & capsules) by exploring the use of monitoring the pharmaceutical presentation, flavonoid profile and antioxidant activity levels and to develop/or adapt methods and specifications that may be used for the quality control of such products.Stability tests were conducted on all of the selected SCP. The products were stored under elevated temperatures and environmental humidity conditions and total phenol, antioxi

APA, Harvard, Vancouver, ISO, and other styles

17

Prevoo, Desiree. "An investigation into the stress relieving properties of Sutherlandia frutescens : inhibition of steroidogenic cytochrome P450 enzymes." Thesis, Stellenbosch : Stellenbosch University, 2005. http://hdl.handle.net/10019.1/50270.

Full text

Abstract:

Thesis (MSc)--Stellenbosch University, 2005.<br>ENGLISH ABSTRACT: This study: I. Investigates the influence of S. frutescens on the binding properties of cytochrome P450-dependent enzymes in ovine adrenocortical mitochondria and microsomes, demonstrating that S. frutescens extracts elicit difference spectra and inhibit the Type 1 difference spectra induced by natural steroids. II. Indicates inhibition by S. frutescens extracts of the catalytic activity of cytochrome P450-dependent-17a-hydroylase and cytochrome P450-dependentsteroid- 21-hydroxylase enzymes in ovine adrenocortical micros

APA, Harvard, Vancouver, ISO, and other styles

18

Msebele, Bongiwe. "Application of Sutherlandia flutescens in cosmetic skin industry (phytochemical fingerprinting and its activity against skin immune diseases." University of the Western Cape, 2019. http://hdl.handle.net/11394/7368.

Full text

Abstract:

>Magister Scientiae - MSc<br>Hyperpigmentation disorders such as melasma, freckles and black-pigmented spots on the surface of the skin are often a result of increased over production and accumulation of melanin pigments in the skin. In melanin biogenesis, tyrosinase is the key enzyme that catalysis the synthesis of melanin, thus the most effective and easiest way to reduce melanin synthesis is by inhibiting tyrosinase. There are a large number of reported tyrosinase inhibitors, their identification and isolation from natural sources is highly important because when natural tyrosinase in

APA, Harvard, Vancouver, ISO, and other styles

19

Neethling, Ian Garth. "Can the Sutherlandia herb or resistance exercise reverse the stress inducing effects of a mild-intermittent stress procedure." Thesis, Stellenbosch : University of Stellenbosch, 2006. http://hdl.handle.net/10019.1/2465.

Full text

Abstract:

Thesis (MSc (Physiological Sciences))--University of Stellenbosch, 2006.<br>This study aimed to assess the effect of mild psychological stress in male Wistar rats using incremental, intermittent stress on parameters of atrophy, including body mass, soleus and extensor digitorum longus (EDL) muscle mass, and mechanisms possibly contributing to atrophy. Serum corticosterone concentrations, 20s proteasome activity, glutamine synthetase (GS) and tyrosine amino-transferase (TAT) activities were determined. I also assessed whether Sutherlandia (Su) or resistance exercise was able to reverse the effe

APA, Harvard, Vancouver, ISO, and other styles

20

Mackenzie, Janine. "Development of insulin resistance in a rat model and the effects of sutherlandia frutescens as treatment and prevention." Thesis, Nelson Mandela Metropolitan University, 2010. http://hdl.handle.net/10948/d1016216.

Full text

Abstract:

The global number of obese people has reached pandemic proportions. High caloric diets and reduced physical exercise are to blame for this growing epidemic. Obesity has a very complex association with several other metabolic disorders, such as insulin resistance (IR), diabetes mellitus type 2 (DMT2) and cardiovascular disease. This puts a huge burden on health care systems world wide and claims many lives. Sutherlandia frutescens is a traditionally used herb, which is known to have anti-diabetic properties. However, the direct mode of action of S. frutescens still remains to be elucidated. The

APA, Harvard, Vancouver, ISO, and other styles

21

Elliot, Gayle Pamela. "Implementation of novel flow cytometric methods to assess the in vitro antidiabetic mechanism of a Sutherlandia Frutescens extract." Thesis, Nelson Mandela Metropolitan University, 2010. http://hdl.handle.net/10948/1439.

Full text

Abstract:

The ability of insulin to stimulate glucose uptake into muscle and adipose tissue is central to the maintenance of whole-body glucose homeostasis. Deregulation of insulin action manifests itself as insulin resistance, a key component of type 2 diabetes. Insulin resistance is also observed in HIV patients receiving protease inhibitors. An agent that can reversibly induce an insulin-resistant state would be a very useful tool in developing model systems that mimic the pathogenesis of type 2 diabetes. Insulin resistance can arise from defects in insulin signal transduction, changes in the express

APA, Harvard, Vancouver, ISO, and other styles

22

Sergeant, Catherine Anne. "The influence of S. frutescens on adrenal cytochrome P450 11B-hydroxylase." Thesis, Stellenbosch : University of Stellenbosch, 2009. http://hdl.handle.net/10019.1/2488.

Full text

Abstract:

Thesis (MSc (Biochemistry))--University of Stellenbosch, 2009.<br>ENGLISH ABSTRACT: This study: 1. describes the preparation of a methanol extract of Sutherlandia frutescens and the HPLC fractionation of the methanol extract. 2. investigates the influence of S. frutescens on the binding properties of mitochondrial cytochrome 11 -hydroxylase (CYP11B1) to deoxycorticosterone (DOC) and deoxycortisol, demonstrating that methanol extracts of S. frutescens inhibit the Type I substrate-induced difference spectra. 3. investigates the influence of S. frutescens on the catalytic activity of CYP1

APA, Harvard, Vancouver, ISO, and other styles

23

Dambuza, Ntokozo Shirley. "Isolation of bioactive metabolites with activity against HIV-1 target proteins from extracts of Sutherlandia frutescens and Lobostemon trigonus." Thesis, Nelson Mandela Metropolitan University, 2007. http://hdl.handle.net/10948/492.

Full text

Abstract:

Acquired Immunodeficiency Syndrome (AIDS) is a human disease caused by the human immunodeficiency virus type 1 (HIV-1) and it is one of the biggest social, economic and health challenges in the world. The Joint United Nations Programme on HIV/AIDS (UNAIDS) and World Health Organization (WHO) estimated that between 33.4 to 46.0 million people around the world were living with HIV/AIDS in December 2005 and the highest estimates are in the Sub-Saharan Africa (around 25 million). In more developed countries a combined antiretroviral therapy called highly active antiretroviral therapy (HAART) is us

APA, Harvard, Vancouver, ISO, and other styles

24

Tili, Siphokazi Pamphilia. "Observed pathological changes in male Wistar rats after co-treatment of Type II Diabetes with metformin and sutherlandia frutescens." Thesis, Nelson Mandela Metropolitan University, 2012. http://hdl.handle.net/10948/d1012644.

Full text

Abstract:

Diabetes is a serious condition that affects all the body’s systems including kidneys, heart, eyes and limbs. This alone makes type II diabetes a life threatening disease; an expensive disease and economic burden that many individuals struggle to cope with.The rapid growth type II diabetes in South Africa is associated with the change of life style, and environmental factors brought by westernized way of life living in rural areas. Despite the technical advances in diagnosis and therapy of diabetes many people still use alternative forms of therapy due to the cost, traditional reasons and reli

APA, Harvard, Vancouver, ISO, and other styles

25

Joseph, Ashton Edward. "Comparison of the sutherlandioside B levels in two commercially available Sutherlandia frutescence preparations and the effect of elevated temperature and humidity on these levels." Thesis, University of the Western Cape, 2009. http://etd.uwc.ac.za/index.php?module=etd&action=viewtitle&id=gen8Srv25Nme4_1532_1299237071.

Full text

Abstract:

<p>Sutherlandia frutescens (tribe Galegeae, Fabaceae), is a popular medicinal plant traditionally used in South Africa. In 2000, a company called Phyto Nova (Pty) Ltd. initiated large-scale cultivation and contract manufacturing of tablets, made from the powdered herb (i.e. thin stems and leaves). Most of these commercial Sutherlandia solid dosage forms are made from the dried leaf powder but recently a new product, viz. Promune&trade<br>capsules, made from a freeze-dried aqueous extract, came on the market and was claimed to be &ldquo<br>better&rdquo<br>as it mimics the traditional tea. Howev

APA, Harvard, Vancouver, ISO, and other styles

26

Chadwick, Wayne. "Observed metabolic changes in male Wistar rats after treatment with an antidepressant implied in undesirable weight gain, or Sutherlandia frutescens for Type II diabetes." Thesis, University of Port Elizabeth, 2003. http://hdl.handle.net/10948/313.

Full text

Abstract:

Type II diabetes is fast becoming a growing problem in developed countries worldwide. Traditionally the median age for diagnosis was around sixty, but recent surveys have shown that the entire age distribution curve has shifted to the left. Western countries boast the worst statistics in which type II diabetes is being reported in children under the age of ten. At such a young age the disease often goes undiagnosed for long periods of time allowing considerable damage to occur. The incidence of type II diabetes is thought to be parallel with the growing rate of obesity associated with a charac

APA, Harvard, Vancouver, ISO, and other styles

27

Swead, Ramadan. "The development of a study protocol, and ethics and regulatory approval documentation, for evaluation of clinical efficacy of Sutherlandia frutescens in adult type-2 diabetics." University of the Western Cape, 2018. http://hdl.handle.net/11394/5943.

Full text

Abstract:

Magister Scientiae - MSc (Pharmacy Administration and Policy Regulation)<br>The prevalence of diabetes mellitus is increasing worldwide and it is becoming a significant medical problem in low- and middle-income countries. The condition can be controlled with a lifelong commitment to blood sugar monitoring, weight management, proper nutrition, exercise, and pharmacotherapy. Additional new pharmacotherapies are however needed to combat the increased prevalence and various traditionally used herbs, such as Sutherlandia frutescens (S, frutescens), are being advocated to supplement the management o

APA, Harvard, Vancouver, ISO, and other styles

28

Stander, Barend Andre. "Differential effects of Sutherlandia frutescens subs. microphylla on cell numbers, morphology, gene and protein expression in a breast adenocarcinoma and a normal breast epithelial cell line." Diss., Access to E-Thesis, 2007. http://upetd.up.ac.za/thesis/available/etd-08052008-093345/.

Full text

APA, Harvard, Vancouver, ISO, and other styles

29

Ebrahim, Mozaffar. "The implementation of in vitro assays to screen environmental samples for male reproductive toxicity." Thesis, University of the Western Cape, 2010. http://etd.uwc.ac.za/index.php?module=etd&action=viewtitle&id=gen8Srv25Nme4_1166_1361368371.

Full text

Abstract:

<p>Endocrine&ndash<br>disrupting compounds (EDCs) are exogenous compounds/chemicals which interfere with, or have adverse effects on the production, distribution and function of natural hormones, thereby affecting normal endocrine activity, health and quality of life of both humans and wildlife. The reproductive system is highly susceptible to EDCs due to it being controlled by an array of hormonal signals. The effects of EDCs on the male reproductive system include infertility, decreased sperm count, function and morphology, abnormal development of secondary sex characteristics, reproductive

APA, Harvard, Vancouver, ISO, and other styles

30

Africa, Luan Dane. "HIV-1 associated neuroinflammation : effects of two complimentary medicines illustrated in an in vitro model of the blood-brain barrier." Thesis, Stellenbosch : Stellenbosch University, 2014. http://hdl.handle.net/10019.1/95869.

Full text

Abstract:

Thesis (MSc)--Stellenbosch University, 2014.<br>ENGLISH ABSTRACT: Background: Neuroinflammation is central to the aetiology of HIV-associated neurocognitive disorders (HAND) that are prevalent in late stage AIDS. ARV treatments are rolled out relatively late in the context of neuroinflammatory changes, so that their usefulness in directly preventing HAND is probably limited. It is common practice for HIV+ individuals in developing countries to make use of traditional/complimentary medicines. One such medicine is Sutherlandia frutescens - commonly consumed as a water infusion. We have also iden

APA, Harvard, Vancouver, ISO, and other styles

31

Kühn, Axel D. "A.S. Neill und Summerhill eine Rezeptions- und Wirkungsanalyse /." [S.l. : s.n.], 2002. http://deposit.ddb.de/cgi-bin/dokserv?idn=965433013.

Full text

APA, Harvard, Vancouver, ISO, and other styles

32

Janse, van Vuuren Marthinus. "Hypothalamic-pituitary-adrenal-axis vs. the sympatho-adrenal medullary system in the acute response to psychological stress." Thesis, Stellenbosch : University of Stellenbosch, 2011. http://hdl.handle.net/10019.1/6738.

Full text

Abstract:

Thesis (MSc (Physiological Sciences))--University of Stellenbosch, 2011.<br>Includes bibliography.<br>ENGLISH ABSTRACT: The hypothalamic-pituitary-adrenal-(HPA) axis has long been closely associated with psychological stress-induced activation of the adrenal cortex and subsequent glucocorticoid production. Another, less known peripheral limb of the psychological stress response, is the sympatho adrenal medullary pathway. We hypothesized that the sympatho-adrenal medullary system constitutes the primary response to acute psychological stress, with the HPA-axis functioning as a secondary re

APA, Harvard, Vancouver, ISO, and other styles

33

Viljoen, K. S. "Petrology of the Sutherland Commonage melilitite intrusives." Master's thesis, University of Cape Town, 1988. http://hdl.handle.net/11427/22496.

Full text

Abstract:

The petrology of the Sutherland Commonage olivine melilitite intrusives have been investigated using petrographic and chemical methods. The occurrence consists of a ring dyke which surrounds a centrally located sill complex. The rock of the ring dyke is a typical melilitite which consists of olivine in a groundmass of melilite, clinopyroxene, opaque spinel, nepheline and perovskite. The sill complex is a multiple intrusion and is comprised of a lower green melilitite and an overlying (and younger) grey melilitite. The green melilitite is deuterically altered and the original mineralogy is dest

APA, Harvard, Vancouver, ISO, and other styles

34

Lapointe, Luc. "Modèles de Calogero et Sutherland, fonctions spéciales et symétries." Thesis, National Library of Canada = Bibliothèque nationale du Canada, 1997. http://www.collectionscanada.ca/obj/s4/f2/dsk2/ftp02/NQ32653.pdf.

Full text

APA, Harvard, Vancouver, ISO, and other styles

35

Gunter, Leah. "Kunstdiva versus Stimmediva Callas and Sutherland in Bellini’s Norma." Master's thesis, Faculty of Humanities, 2019. http://hdl.handle.net/11427/30511.

Full text

Abstract:

The focus of this dissertation is to analyse the balance between interpretative and vocal ability in bel canto opera, which is traditionally considered as the principal domain of the Stimmediva. The dissertation includes a survey of the characteristics of bel canto, Bellini’s contribution to it and the performance history of his opera Norma. Furthermore, it investigates the German differentiation between Kunstdiva and Stimmediva as exemplified by two major sopranos of the twentieth century, Maria Callas and Joan Sutherland. Callas’s performance of Norma is universally recognised as a watershe

APA, Harvard, Vancouver, ISO, and other styles

36

Acott, Timothy G. "Soil micromorphology and image analysis : a study of Bronze Age to recently improved soils at Lairg, Sutherland, Scotland." Thesis, University of Stirling, 1993. http://hdl.handle.net/1893/1784.

Full text

Abstract:

The applications of multispectral and morphometric image analysis to soil thin section descriptions is examined. It is shown that unsupervised classification and contrast stretching can be used to enhance and label features of interest. Morphometric measurements, allow the shape and abundance of features in thin sections to be compared and statistical relationships established. This method of analysis offers a precision beyond that which is possible using a qualitative approach. Using soil micromorphology as the main analytical technique a case study was carried out to evaluate the applicabili

APA, Harvard, Vancouver, ISO, and other styles

37

Brunt, Daniel C. "Magnetic properties of frustrated Shastry-Sutherland magnets : rare earth tetraborides." Thesis, University of Warwick, 2017. http://wrap.warwick.ac.uk/98779/.

Full text

Abstract:

Geometrically frustrated magnetism arises when the competing interactions are incompatible with the geometry of the lattice. This leads to a large ground state degeneracy and the system typically has difficulty establishing a unique ground state, often giving rise complex intermediate magnetic phases and other unusual phenomena. Recently the rare-earth tetraborides, RB4, family of compounds has garnered attention as it is a rare experimental realisation of the frustrated Shastry-Sutherland lattice. Here the R3+ ions form a network of squares and triangles which is topologically equivalent to t

APA, Harvard, Vancouver, ISO, and other styles

38

Atai, Farrokh. "Anyons in (1 + 1) dimensions and the deformed Calogero-Sutherland model." Thesis, KTH, Teoretisk fysik, 2011. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-34281.

Full text

Abstract:

This thesis deals with a conformal field theoretical treatment of abelian anyons in (1 + 1)-dimensions and their relation to the integrable Calogero-Sutherland models. We generalize previous work relating anyons to the Calogero-Sutherland model by showing that the correlation function of the anyon field operators corresponds to the eigenfunctions of the deformed Calogero-Sutherland model. Our results suggest a physical application of the deformed Calogero-Sutherland model in the context of the fractional quantum Hall effect (FQHE). A key aspect for this work is the introduction of the dual any

APA, Harvard, Vancouver, ISO, and other styles

39

Desrosiers, Patrick. "Les modèles Calogero-Moser-Sutherland supersymétriques et les superpolynômes de Jack." Thesis, National Library of Canada = Bibliothèque nationale du Canada, 2001. http://www.collectionscanada.ca/obj/s4/f2/dsk3/ftp04/MQ60712.pdf.

Full text

APA, Harvard, Vancouver, ISO, and other styles

40

Bangor-Jones, Malcolm. "Aspects of landholding in Ross and Cromarty and Sutherland c1600-1850." Thesis, University of Dundee, 1986. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.511644.

Full text

APA, Harvard, Vancouver, ISO, and other styles

41

Ronquillo, David C. "Identifying topological order in the Shastry-Sutherland model via entanglement entropy." Thesis, California State University, Long Beach, 2015. http://pqdtopen.proquest.com/#viewpdf?dispub=1596474.

Full text

Abstract:

<p> It is known that for a topologically ordered state the area law for the entanglement entropy shows a negative universal additive constant contribution, –γ, called the topological entanglement entropy. We theoretically study the entanglement entropy of the two-dimensional Shastry-Sutherland quantum antiferromagnet using exact diagonalization on clusters of 16 and 24 spins. By utilizing the Kitaev-Preskill construction, we extract a finite topological term, –γ , in the region of bond-strength parameter space corresponding to high geometrical frustration. Thus, we prov

APA, Harvard, Vancouver, ISO, and other styles

42

Sköldberg, Andrea. ""Det finns inga problembarn, bara problemföräldrar" : Alexander Sutherland Neill (1883-1973)." Thesis, Stockholms universitet, Juridiska institutionen, 2015. http://urn.kb.se/resolve?urn=urn:nbn:se:su:diva-124479.

Full text

APA, Harvard, Vancouver, ISO, and other styles

43

Du, Toit Werner. "'n Ekonomiese analise van die potensiaal van Sutherland as verbouingsarea vir die uitvoer van tulpbolle na Nederland." Thesis, Stellenbosch : University of Stellenbosch, 2005. http://hdl.handle.net/10019.1/3471.

Full text

Abstract:

Thesis (MComm (Business Management))--University of Stellenbosch, 2005.<br>Tulips are the second largest floral commodity that is traded globally. Currently Holland controls half of the 20 billion Dollar tulip bulb market, although immense pressure from European institutions may serve to change this phenomenon in the near future. Not only do increasing labour costs and stricter legislation on the usage of pesticides impair this industry, but the Dutch government also places huge pressure on its own producers to convert scarce agricultural land into residential areas. These conditions cou

APA, Harvard, Vancouver, ISO, and other styles

44

Du, Plessis Jacobus Johannes. "Die invloed van plattelandse toerisme op die ontwikkeling en struktuur van Sutherland." Thesis, Stellenbosch : University of Stellenbosch, 2009. http://hdl.handle.net/10019.1/4031.

Full text

Abstract:

Thesis (MA (Geography and Environmental Studies))--University of Stellenbosch, 2009.<br>This study combines qualitative and quantitative techniques in an inquiry into the influence of rural tourism on the development and structure of Sutherland from 2001 till 2005. Sutherland, like most small rural towns in the Central and Western Karoo, is/was in the process of decline. Rural tourism is seen as a solution to curb the process of decline. The study investigates this assumption by analyzing the positive and negative impacts of tourism on the economic, social and environmental spheres of Su

APA, Harvard, Vancouver, ISO, and other styles

45

Sutherland, Richard Daniel. "Performance of different proton exchange membrane water electrolyser components / cRichard Daniel Sutherland." Thesis, North-West University, 2012. http://hdl.handle.net/10394/9214.

Full text

Abstract:

Water electrolysis is one of the first methods used to generate hydrogen and is thus not considered to be a new technology. With advances in proton exchange membrane technology and the global tendency to implement renewable energy, the technology of water electrolysis by implementation of proton exchange membrane as solid electrolyte has developed into a major field of research over the last decade. To gain an understanding of different components of the electrolyser it is best to conduct a performance analysis based on hydrogen production rates and polarisation curves. The study aim was to co

APA, Harvard, Vancouver, ISO, and other styles

46

Alarie-Vézina, Ludovic. "Les superpolynômes de Jack et le modèle Calogero-Moser-Sutherland N = 2." Doctoral thesis, Université Laval, 2017. http://hdl.handle.net/20.500.11794/28194.

Full text

Abstract:

Dans cet ouvrage, on présente une généralisation des polynômes symétriques de Jack, les superpolynômes de Jack N = 2, et on discute de ses connections avec le modèle Calogero-Moser-Sutherland trigonométrique (tCMS) supersymétrique N = 2. On fait d’abord une brève introduction à la théorie des polynômes symétriques pour ensuite définir le polynôme symétrique de Jack. On le définit de trois façons : combinatoirement, en tant que fonction propre du modèle tCMS et comme le résultat de la symétrisation du polynôme de Jack non symétrique. On introduit ensuite la théorie des superpolynômes symétrique

APA, Harvard, Vancouver, ISO, and other styles

47

Pelz, Myra Bennett. "Three-dimensional data input using Sutherland's two-dimensional tablet strategies plus enhanced user feedback /." Online version of thesis, 1989. http://hdl.handle.net/1850/10593.

Full text

APA, Harvard, Vancouver, ISO, and other styles

48

Burns, Ian Marcus. "Tectonothermal evolution and petrogenesis of the Navier and Kirtomy Nappes, North Sutherland, Scotland." Thesis, Oxford Brookes University, 1994. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.261600.

Full text

APA, Harvard, Vancouver, ISO, and other styles

49

Atai, Farrokh. "A kernel function approach to exact solutions of Calogero-Moser-Sutherland type models." Doctoral thesis, KTH, Teoretisk fysik, 2016. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-193322.

Full text

Abstract:

This Doctoral thesis gives an introduction to the concept of kernel functionsand their signicance in the theory of special functions. Of particularinterest is the use of kernel function methods for constructing exact solutionsof Schrodinger type equations, in one spatial dimension, with interactions governedby elliptic functions. The method is applicable to a large class of exactlysolvable systems of Calogero-Moser-Sutherland type, as well as integrable generalizationsthereof. It is known that the Schrodinger operators with ellipticpotentials have special limiting cases with exact eigenfunctio

APA, Harvard, Vancouver, ISO, and other styles

50

Tindley, Anne Marie. "The Sutherland estate, c. 1860-1914 : aristocratic decline, estate management and land reform." Thesis, University of Edinburgh, 2006. http://hdl.handle.net/1842/29401.

Full text

Abstract:

The Sutherland estate in the north of Scotland was one of the most famous, or infamous, of all Highland estates. Despite its high profile, only limited use has been made of the principal source for its study: the huge collection of estate records deposited in the National Library of Scotland and Staffordshire County Record Office. Historians of late nineteenth century Highland history have instead tended to rely on newspaper and other published accounts. The present study tries to set the Sutherland estate into its Highland context, politically, financially and organisationally. Of course, the

APA, Harvard, Vancouver, ISO, and other styles

We offer discounts on all premium plans for authors whose works are included in thematic literature selections. Contact us to get a unique promo code!