An investigation into the application of Austrian didactics and methods of elementary musical education in South African school
- Authors: Nowotny, Ingrid Heidelinde
- Date: 1970
- Subjects: School music -- Instruction and study -- South Africa , Music -- Study and teaching (Elementary) , Music theory -- Elementary works
- Language: English
- Type: Thesis , Masters , MMus
- Identifier: vital:2688 , http://hdl.handle.net/10962/d1012970
- Description: Why teach music? To answer this question one has to be able to see the full value of musical education. One has to recognize its effect on the unfolding of character and personality on the one hand and, on the other, its value for the development and sharpening of the intellect. In ancient Greece, the cradle of Western culture, the significance of music for man, the people, and the state was frequently emphasized. The Greeks regarded music almost as a magic force, the inherent harmony of which was capable of transforming things and creating order by reconciling contrarieties. Similarly they believed that the power of music could restore the harmony in man's soul. Intro., p.1.
- Full Text:
- Date Issued: 1970
- Authors: Nowotny, Ingrid Heidelinde
- Date: 1970
- Subjects: School music -- Instruction and study -- South Africa , Music -- Study and teaching (Elementary) , Music theory -- Elementary works
- Language: English
- Type: Thesis , Masters , MMus
- Identifier: vital:2688 , http://hdl.handle.net/10962/d1012970
- Description: Why teach music? To answer this question one has to be able to see the full value of musical education. One has to recognize its effect on the unfolding of character and personality on the one hand and, on the other, its value for the development and sharpening of the intellect. In ancient Greece, the cradle of Western culture, the significance of music for man, the people, and the state was frequently emphasized. The Greeks regarded music almost as a magic force, the inherent harmony of which was capable of transforming things and creating order by reconciling contrarieties. Similarly they believed that the power of music could restore the harmony in man's soul. Intro., p.1.
- Full Text:
- Date Issued: 1970
An investigation into the loss of preservatives from opthalmic solutions, during filtration sterilization
- Authors: Naidoo, Nadasen T
- Date: 1970
- Subjects: Filters and filtration , Sterilization
- Language: English
- Type: Thesis , Masters , MSc
- Identifier: vital:3851 , http://hdl.handle.net/10962/d1012931
- Description: Most eye drops are dispensed in multi-dose containers, hence protection should be given against microbial contamination during use. To remain sterile during it's use, the solution should contain a preservative in such concentration so that it kills micro-organisms in a short time. It has been stated in the literature that the instillation of contaminated eye drops constitutes a greater danger than the intravenous injection of a contaminated solution since the cornea is nonvascular and lacks the normal antimicrobial defences of the blood stream. Amongst the preservatives used, those included in the official formulations for eye drops are Chlorhexidine Acetate, Phenyl Mercuric Nitrate, Benzalkonium Chloride, and to some extent Phenylethanol, which may be used in combination with Benzalkonium Chloride. The main purpose of this investigation has been to determine the adsorption of these preservatives by different filters during sterilization by filtration. Part 1, p. 2.
- Full Text:
- Date Issued: 1970
- Authors: Naidoo, Nadasen T
- Date: 1970
- Subjects: Filters and filtration , Sterilization
- Language: English
- Type: Thesis , Masters , MSc
- Identifier: vital:3851 , http://hdl.handle.net/10962/d1012931
- Description: Most eye drops are dispensed in multi-dose containers, hence protection should be given against microbial contamination during use. To remain sterile during it's use, the solution should contain a preservative in such concentration so that it kills micro-organisms in a short time. It has been stated in the literature that the instillation of contaminated eye drops constitutes a greater danger than the intravenous injection of a contaminated solution since the cornea is nonvascular and lacks the normal antimicrobial defences of the blood stream. Amongst the preservatives used, those included in the official formulations for eye drops are Chlorhexidine Acetate, Phenyl Mercuric Nitrate, Benzalkonium Chloride, and to some extent Phenylethanol, which may be used in combination with Benzalkonium Chloride. The main purpose of this investigation has been to determine the adsorption of these preservatives by different filters during sterilization by filtration. Part 1, p. 2.
- Full Text:
- Date Issued: 1970
An investigation into the relationship between creativity and academic performance in school children
- Authors: Noble, Sybil
- Date: 1970
- Subjects: Creative ability , Academic achievement , Performance in children
- Language: English
- Type: Thesis , Masters , MA
- Identifier: vital:3221 , http://hdl.handle.net/10962/d1012964
- Description: The subject of creativity is of interest not only to the research worker and educationist but also, with its related mental health aspect, to the clinical psychologist. As the writer's interest is in clinical psychology the opportunity, which occurred in 1968, to undertake research on creativity, was welcomed. This opportunity arose out of a larger piece of research into the relationships between personality variables and mathematical ability in school children. This involved the administration of personality tests and tests of arithmetic and mathematical ability to all the English speaking school children in Grahamstown from Standard 2 to Standard 10. The writer assisted in this testing program and did the greater part of the marking, scoring and entering on computer sheets. Thus personality test scores for over 2,000 children from the age of 8 or 9 to 17 or 18, both boys and girls were available. It was found possible to extend the computer program to calculate a score for creativity based on a combination of Cattell's personality factors and it was decided to compare these creativity scores with actual school performance, as measured by internal school examinations, which with the cooperation and agreement of the Cape Education Department and local schools, the writer was able to obtain. Intro., p.1.
- Full Text:
- Date Issued: 1970
- Authors: Noble, Sybil
- Date: 1970
- Subjects: Creative ability , Academic achievement , Performance in children
- Language: English
- Type: Thesis , Masters , MA
- Identifier: vital:3221 , http://hdl.handle.net/10962/d1012964
- Description: The subject of creativity is of interest not only to the research worker and educationist but also, with its related mental health aspect, to the clinical psychologist. As the writer's interest is in clinical psychology the opportunity, which occurred in 1968, to undertake research on creativity, was welcomed. This opportunity arose out of a larger piece of research into the relationships between personality variables and mathematical ability in school children. This involved the administration of personality tests and tests of arithmetic and mathematical ability to all the English speaking school children in Grahamstown from Standard 2 to Standard 10. The writer assisted in this testing program and did the greater part of the marking, scoring and entering on computer sheets. Thus personality test scores for over 2,000 children from the age of 8 or 9 to 17 or 18, both boys and girls were available. It was found possible to extend the computer program to calculate a score for creativity based on a combination of Cattell's personality factors and it was decided to compare these creativity scores with actual school performance, as measured by internal school examinations, which with the cooperation and agreement of the Cape Education Department and local schools, the writer was able to obtain. Intro., p.1.
- Full Text:
- Date Issued: 1970
An investigation of compounds occurring in leonotis species
- Authors: Naidu, Krishna
- Date: 1970
- Subjects: Leonotis -- Analysis , Chemistry -- Analytic , Nuclear magnetic resonance
- Language: English
- Type: Thesis , Masters , MSc
- Identifier: vital:3852 , http://hdl.handle.net/10962/d1012934
- Description: Two labdane diterpenoids 8-hydroxymarrubiin and leonitin were isolated from Leonotis dysophylla (Benth.) and Leonotis leonitis respectively. Spectral studies of 8-hydroxymarrubiin, C₂₀H₂₈ O₅ʻ showed the presence of a β -substituted furan, a Ϫ-lactone, three tertiary methyl groups and tertiary hydroxyl group (s). The NMR spectrum of 8-hydroxymarrubiin and marrubiin C₂₀H₂₈O₄ʻ were almost identical with the exception of the C₁₇- methyl group which appeared as a singlet in 8-hydroxymarrubiin and as a doublet in marrubiin. The extra oxygen atom was therefore assumed to be present as a hydroxyl group substituted in the C₈₋ position. This was further confirmed by the formation of an epoxide and a Ϫό-dilactone. Leonitin, C₂₀H₂₈O₇ʻ was shown by spectral and chemical evidence to be a diterpenoid dilactone possessing an ester function and an ether linkage. Comparison of the NMR spectra of compound X and leonitin suggested that the acetoxy function occurs in the C₂₀- position. This was further supported by the formation of a 'Ϫό -dilactone. The absence of a β -furan moiety was apparent from chemical and spectral evidence, A structure for leonitin is proposed and aspects of its stereochemistry discussed.
- Full Text:
- Date Issued: 1970
- Authors: Naidu, Krishna
- Date: 1970
- Subjects: Leonotis -- Analysis , Chemistry -- Analytic , Nuclear magnetic resonance
- Language: English
- Type: Thesis , Masters , MSc
- Identifier: vital:3852 , http://hdl.handle.net/10962/d1012934
- Description: Two labdane diterpenoids 8-hydroxymarrubiin and leonitin were isolated from Leonotis dysophylla (Benth.) and Leonotis leonitis respectively. Spectral studies of 8-hydroxymarrubiin, C₂₀H₂₈ O₅ʻ showed the presence of a β -substituted furan, a Ϫ-lactone, three tertiary methyl groups and tertiary hydroxyl group (s). The NMR spectrum of 8-hydroxymarrubiin and marrubiin C₂₀H₂₈O₄ʻ were almost identical with the exception of the C₁₇- methyl group which appeared as a singlet in 8-hydroxymarrubiin and as a doublet in marrubiin. The extra oxygen atom was therefore assumed to be present as a hydroxyl group substituted in the C₈₋ position. This was further confirmed by the formation of an epoxide and a Ϫό-dilactone. Leonitin, C₂₀H₂₈O₇ʻ was shown by spectral and chemical evidence to be a diterpenoid dilactone possessing an ester function and an ether linkage. Comparison of the NMR spectra of compound X and leonitin suggested that the acetoxy function occurs in the C₂₀- position. This was further supported by the formation of a 'Ϫό -dilactone. The absence of a β -furan moiety was apparent from chemical and spectral evidence, A structure for leonitin is proposed and aspects of its stereochemistry discussed.
- Full Text:
- Date Issued: 1970
An investigation of the structural problems in relation to some synthetic waxes
- Authors: Stokhuyzen, Rolf
- Date: 1970
- Subjects: Chemistry, Analytic , Waxes , Synthetic products
- Language: English
- Type: Thesis , Masters , MSc
- Identifier: vital:4443 , http://hdl.handle.net/10962/d1007695 , Chemistry, Analytic , Waxes , Synthetic products
- Description: From Introduction: Wax and wax-like substances have been defined in many ways. One reasonably extensive definition, by Hatt and Lamberton (1956) is given below: "The term "wax" seems best used to denote a group of substances which qualitatively have certain physical properties in common. These properties are familiar ones, for in almost all countries some natural wax - beeswax, Japan wax, Chinese insect wax, the carnauba and candelilla waxes of the Americas - has been an important material in art and industry from prehistoric times. Waxes are understood to be opaque or translucent solids, which melt without decomposition to form mobile liquids at temperatures in the region of 100⁰C. They differ in hardness, but are all essentially soft substances with poor mechanical strength. Most waxes can be easily shaped or kneaded at a little above ambient temperatures. In fact, the term could easily have been made to cover the whole class now named thermoplastics." Pure n-paraffins would be too crystalline and brittle for use as waxes, whereas mixtures of n-paraffins have some valuable properties. The molecules bear such close resemblance to one another that they form mixed crystals of lowered crystallinity and the melting point is a function of the mean molecular weight. This is a desirable feature for it permits crystallinity and brittleness to be reduced without a marked loss in the melting point or hardness. It also allows a mixture to simulate a pure compound very closely. Waxes, in general, have been put to a large number of uses. They are used, for example, in candles, polishes, paper-coating, plastics, printing, matches, rust protectants and insulation. Each application requires its own appropriate range of wax properties.
- Full Text:
- Date Issued: 1970
- Authors: Stokhuyzen, Rolf
- Date: 1970
- Subjects: Chemistry, Analytic , Waxes , Synthetic products
- Language: English
- Type: Thesis , Masters , MSc
- Identifier: vital:4443 , http://hdl.handle.net/10962/d1007695 , Chemistry, Analytic , Waxes , Synthetic products
- Description: From Introduction: Wax and wax-like substances have been defined in many ways. One reasonably extensive definition, by Hatt and Lamberton (1956) is given below: "The term "wax" seems best used to denote a group of substances which qualitatively have certain physical properties in common. These properties are familiar ones, for in almost all countries some natural wax - beeswax, Japan wax, Chinese insect wax, the carnauba and candelilla waxes of the Americas - has been an important material in art and industry from prehistoric times. Waxes are understood to be opaque or translucent solids, which melt without decomposition to form mobile liquids at temperatures in the region of 100⁰C. They differ in hardness, but are all essentially soft substances with poor mechanical strength. Most waxes can be easily shaped or kneaded at a little above ambient temperatures. In fact, the term could easily have been made to cover the whole class now named thermoplastics." Pure n-paraffins would be too crystalline and brittle for use as waxes, whereas mixtures of n-paraffins have some valuable properties. The molecules bear such close resemblance to one another that they form mixed crystals of lowered crystallinity and the melting point is a function of the mean molecular weight. This is a desirable feature for it permits crystallinity and brittleness to be reduced without a marked loss in the melting point or hardness. It also allows a mixture to simulate a pure compound very closely. Waxes, in general, have been put to a large number of uses. They are used, for example, in candles, polishes, paper-coating, plastics, printing, matches, rust protectants and insulation. Each application requires its own appropriate range of wax properties.
- Full Text:
- Date Issued: 1970
Religious orders and personal and group attitudes and values
- Authors: Wright, Beryl
- Date: 1970
- Subjects: Church and social problems -- South Africa , Christians -- South Africa -- Grahamstown -- Attitudes
- Language: English
- Type: Thesis , Masters , MSocSc
- Identifier: vital:3358 , http://hdl.handle.net/10962/d1007685 , Church and social problems -- South Africa , Christians -- South Africa -- Grahamstown -- Attitudes
- Description: From Introduction: For many years I have been interested in the relationship between ethical and moral attitudes and values and religious belief. I became aware of a conflict in attitudes concerning the role of the Church in society as a member of the Methodist Church, and this stimulated me to study seriously the role of the Church in present day society. I found that members of the Wesley Guild, of which I myself was a member, conceived of the Guild in three forms: (a) as a social club; (b) as an institution for training in Christian service, both at the level of spiritual belief and practice and at the level of practical help to those in human need; (c) as an assooiation where individual spiritual values are fostered. Members differed in their view of the Guild, some seeing it in terms of all three enumerated forms, others emphasising one or two of these forms. This induced tension within the Guild. Wider observation led me to the view that this diffused concept of the Church and its functions was not peculiar to the Wesley Guild. It seemed to be general to the South African Church. I became confirmed in this view when, as a student at Rhodes University, I found that many theological students of different denominations shared it.
- Full Text:
- Date Issued: 1970
- Authors: Wright, Beryl
- Date: 1970
- Subjects: Church and social problems -- South Africa , Christians -- South Africa -- Grahamstown -- Attitudes
- Language: English
- Type: Thesis , Masters , MSocSc
- Identifier: vital:3358 , http://hdl.handle.net/10962/d1007685 , Church and social problems -- South Africa , Christians -- South Africa -- Grahamstown -- Attitudes
- Description: From Introduction: For many years I have been interested in the relationship between ethical and moral attitudes and values and religious belief. I became aware of a conflict in attitudes concerning the role of the Church in society as a member of the Methodist Church, and this stimulated me to study seriously the role of the Church in present day society. I found that members of the Wesley Guild, of which I myself was a member, conceived of the Guild in three forms: (a) as a social club; (b) as an institution for training in Christian service, both at the level of spiritual belief and practice and at the level of practical help to those in human need; (c) as an assooiation where individual spiritual values are fostered. Members differed in their view of the Guild, some seeing it in terms of all three enumerated forms, others emphasising one or two of these forms. This induced tension within the Guild. Wider observation led me to the view that this diffused concept of the Church and its functions was not peculiar to the Wesley Guild. It seemed to be general to the South African Church. I became confirmed in this view when, as a student at Rhodes University, I found that many theological students of different denominations shared it.
- Full Text:
- Date Issued: 1970
Some aspects of the Franco-German economic relations between the two world wars
- Authors: Wolf, Hans J
- Date: 1970
- Subjects: Economic history -- 1918-1945 , France -- Economic conditions -- 20th century , Germany -- Economic conditions -- 20th century , France -- Foreign relations -- Germany , Germany -- Foreign relations -- France
- Language: English
- Type: Thesis , Masters , MA
- Identifier: vital:1067 , http://hdl.handle.net/10962/d1007687
- Description: From Preface: In this thesis I have aimed at covering a field in Economic History where not many suitable publications are available in English. During the interwar period, the maintenance of peace and harmonious international relations was directly dependent on a reconciliation of the conflicting interests between France and Germany. In studying the economic implications of the Franco-German antagonism, I have tried to throw light upon the crucial role which this relationship played. The Appendix offers a quantitative survey of economic conditions in the two countries and of the relevant production and exchange problems. To assist the reader who is not completely familiar with this period, a brief summary of the relevant conferences, agreements and treaties is also offered in the Appendix, as well as some short biographical notes. I would like to make it clear, however, that this thesis is neither supposed to be a paraphrase of the Appendix, nor a mere treatise on the commercial relations between the two countries concerned. I aimed rather at revealing the forces behind the events and at illustrating how economic problems became quite often subject to political and military considerations. When trying to attain some understanding of Franco-German relations, it seems advisable to look not only at the interbellum period, but in the first instance to become aware of the currents of history which finally led to the two disastrous World Wars.
- Full Text:
- Date Issued: 1970
- Authors: Wolf, Hans J
- Date: 1970
- Subjects: Economic history -- 1918-1945 , France -- Economic conditions -- 20th century , Germany -- Economic conditions -- 20th century , France -- Foreign relations -- Germany , Germany -- Foreign relations -- France
- Language: English
- Type: Thesis , Masters , MA
- Identifier: vital:1067 , http://hdl.handle.net/10962/d1007687
- Description: From Preface: In this thesis I have aimed at covering a field in Economic History where not many suitable publications are available in English. During the interwar period, the maintenance of peace and harmonious international relations was directly dependent on a reconciliation of the conflicting interests between France and Germany. In studying the economic implications of the Franco-German antagonism, I have tried to throw light upon the crucial role which this relationship played. The Appendix offers a quantitative survey of economic conditions in the two countries and of the relevant production and exchange problems. To assist the reader who is not completely familiar with this period, a brief summary of the relevant conferences, agreements and treaties is also offered in the Appendix, as well as some short biographical notes. I would like to make it clear, however, that this thesis is neither supposed to be a paraphrase of the Appendix, nor a mere treatise on the commercial relations between the two countries concerned. I aimed rather at revealing the forces behind the events and at illustrating how economic problems became quite often subject to political and military considerations. When trying to attain some understanding of Franco-German relations, it seems advisable to look not only at the interbellum period, but in the first instance to become aware of the currents of history which finally led to the two disastrous World Wars.
- Full Text:
- Date Issued: 1970
The Cape Midlands: its demography (1911-1960) and regional income (1954/55-1959/60)
- Authors: Banach, John A
- Date: 1970 , 2013-12-09
- Subjects: Demography , Eastern Cape (South Africa) -- Population , Cape of Good Hope (South Africa) -- Economic conditions , Cape of Good Hope (South Africa) -- Population
- Language: English
- Type: Thesis , Masters , MCom
- Identifier: vital:1062 , http://hdl.handle.net/10962/d1007585 , Demography , Eastern Cape (South Africa) -- Population , Cape of Good Hope (South Africa) -- Economic conditions , Cape of Good Hope (South Africa) -- Population
- Description: The area covered in this survey of the Cape Midlands is roughly that portion of the Eastern Cape Province which looks to Port Elizabeth as its principal industrial and market centre where the density of the population is the closest. It lies generally within the geographical region described by Professor J.V.L. Rennie as the Eastern Province Midlands Area. "The Midlands area appears to include all that part of the Eastern Province lying west of the Great Fish and Tark rivers and at least as far inland as the Great Escarpment. The term (Cape Midlands) is commonly applied to local organisations in the larger inland centres of Graaff-Reinet and Port Elizabeth interests. Intro. p.1-2
- Full Text:
- Date Issued: 1970
- Authors: Banach, John A
- Date: 1970 , 2013-12-09
- Subjects: Demography , Eastern Cape (South Africa) -- Population , Cape of Good Hope (South Africa) -- Economic conditions , Cape of Good Hope (South Africa) -- Population
- Language: English
- Type: Thesis , Masters , MCom
- Identifier: vital:1062 , http://hdl.handle.net/10962/d1007585 , Demography , Eastern Cape (South Africa) -- Population , Cape of Good Hope (South Africa) -- Economic conditions , Cape of Good Hope (South Africa) -- Population
- Description: The area covered in this survey of the Cape Midlands is roughly that portion of the Eastern Cape Province which looks to Port Elizabeth as its principal industrial and market centre where the density of the population is the closest. It lies generally within the geographical region described by Professor J.V.L. Rennie as the Eastern Province Midlands Area. "The Midlands area appears to include all that part of the Eastern Province lying west of the Great Fish and Tark rivers and at least as far inland as the Great Escarpment. The term (Cape Midlands) is commonly applied to local organisations in the larger inland centres of Graaff-Reinet and Port Elizabeth interests. Intro. p.1-2
- Full Text:
- Date Issued: 1970
The religious system of the Ndlambe of East London district
- Authors: Bigalke, Erich Heinrich
- Date: 1970
- Subjects: Xhosa (African people) -- Religion
- Language: English
- Type: Thesis , Masters , MA
- Identifier: vital:2113 , http://hdl.handle.net/10962/d1007648
- Description: From conclusion: This study has had a twofold objective, to present ethnographic data on a people who belong to the Xhosa tribal cluster and more specifically, to throw light on aspects of the ancestor cult among the Xhosa. In particular an attempt has been made to explore the nature of the interrelation between the social structure and the ancestor cult. Attention has been focussed on the lineage as an institution, on the rituals devoted to the ancestors and on the means of explaining misfortune. Though the Ndlambe, in common with other groups of indigenous people in the Eastern Cape, have been experiencing developments brought about by social change during the better part of two centuries, the recent implementation of the Betterment Scheme has resulted in drastic demographic changes. The former settlement pattern of scattered homesteads has given way before village formation. Beyond the fact that it has resulted in the closer proximity of homesteads, with the opportunities for cooperation and conflict that this situation implies, nothing is known of the direct organizational influence of this development. More…
- Full Text:
- Date Issued: 1970
- Authors: Bigalke, Erich Heinrich
- Date: 1970
- Subjects: Xhosa (African people) -- Religion
- Language: English
- Type: Thesis , Masters , MA
- Identifier: vital:2113 , http://hdl.handle.net/10962/d1007648
- Description: From conclusion: This study has had a twofold objective, to present ethnographic data on a people who belong to the Xhosa tribal cluster and more specifically, to throw light on aspects of the ancestor cult among the Xhosa. In particular an attempt has been made to explore the nature of the interrelation between the social structure and the ancestor cult. Attention has been focussed on the lineage as an institution, on the rituals devoted to the ancestors and on the means of explaining misfortune. Though the Ndlambe, in common with other groups of indigenous people in the Eastern Cape, have been experiencing developments brought about by social change during the better part of two centuries, the recent implementation of the Betterment Scheme has resulted in drastic demographic changes. The former settlement pattern of scattered homesteads has given way before village formation. Beyond the fact that it has resulted in the closer proximity of homesteads, with the opportunities for cooperation and conflict that this situation implies, nothing is known of the direct organizational influence of this development. More…
- Full Text:
- Date Issued: 1970
A critical investigation of the problems of teaching poetry to English-speaking pupils in South African senior schools
- Authors: Durham, Ken
- Date: 1969
- Subjects: Poetry -- Study and teaching (Secondary) -- South Africa
- Language: English
- Type: Thesis , Masters , MA
- Identifier: vital:2293 , http://hdl.handle.net/10962/d1011609 , Poetry -- Study and teaching (Secondary) -- South Africa
- Description: This thesis is a study of the problems of teaching poetry to English speaking pupils at South African senior schools. It is a study of what is generally agreed to be 'a peculiarly difficult department of teaching' Reeves 1958. Some would go as far as to suggest that the teaching of poetry is the most difficult aspect of any school subject : "No topic in the school curriculum has so many pitfalls as the teaching of poetry in the classroom: it is easier to go astray in attempting to promote aesthetic responses to a poem than in any other kind of lesson. 'Currey {19S8) p. 126.' If one may judge too by the number of complaints from a large body of teachers (see Chapter Four) about the difficulty of teaching poetry successfully the assessments given by Reeves and Currey appear to be well- founded. Additional weight is given by some of the attitudes of pupils themselves towards poetry and the poetry lesson (see Chapter Three). Further confirmation is evident at Teachers' Conferences and from examiners' reports that examination questions on poetry are often among the most badly answered and the least popular of all questions set. Even more significant, perhaps. were the responses from two separate graduate student teacher groups (U.E.D. English Method classes, Rhodes University 1965, 1967). When asked at the beginning of the course to name the one type of English lesson they felt least confident in handling, 42 of the 64 student teachers answered, 'The poetry lesson'. Into. p. 1.
- Full Text:
- Date Issued: 1969
- Authors: Durham, Ken
- Date: 1969
- Subjects: Poetry -- Study and teaching (Secondary) -- South Africa
- Language: English
- Type: Thesis , Masters , MA
- Identifier: vital:2293 , http://hdl.handle.net/10962/d1011609 , Poetry -- Study and teaching (Secondary) -- South Africa
- Description: This thesis is a study of the problems of teaching poetry to English speaking pupils at South African senior schools. It is a study of what is generally agreed to be 'a peculiarly difficult department of teaching' Reeves 1958. Some would go as far as to suggest that the teaching of poetry is the most difficult aspect of any school subject : "No topic in the school curriculum has so many pitfalls as the teaching of poetry in the classroom: it is easier to go astray in attempting to promote aesthetic responses to a poem than in any other kind of lesson. 'Currey {19S8) p. 126.' If one may judge too by the number of complaints from a large body of teachers (see Chapter Four) about the difficulty of teaching poetry successfully the assessments given by Reeves and Currey appear to be well- founded. Additional weight is given by some of the attitudes of pupils themselves towards poetry and the poetry lesson (see Chapter Three). Further confirmation is evident at Teachers' Conferences and from examiners' reports that examination questions on poetry are often among the most badly answered and the least popular of all questions set. Even more significant, perhaps. were the responses from two separate graduate student teacher groups (U.E.D. English Method classes, Rhodes University 1965, 1967). When asked at the beginning of the course to name the one type of English lesson they felt least confident in handling, 42 of the 64 student teachers answered, 'The poetry lesson'. Into. p. 1.
- Full Text:
- Date Issued: 1969
A geographical study of the Cape Midlands and Eastern Karoo area with reference to the physiography and elements of land use
- Authors: Badenhorst, J J
- Date: 1969 , 2013-11-14
- Subjects: Land use -- South Africa , Geomorphology -- South Africa
- Language: English
- Type: Thesis , Masters , MA
- Identifier: vital:4867 , http://hdl.handle.net/10962/d1007581 , Land use -- South Africa , Geomorphology -- South Africa
- Description: The subject has been approached in the conventional geographic manner in successive chapters, Relief, Geology, Soil, Climate, etc. In practice, the relationship between geographic factors and land use is so close that it is usually very difficult to separate the one from the other. When there is any reference to a specific relationship in any chapter, it must be borne in mind that one must always take the other geographic factors into account. In this study the stress falls on an evaluation of the present land use. Even if there is no recommendation regarding the way in which the land should be used, this survey can still be used as the basis for future planning. Intro. p.viii , KMBT_363 , Adobe Acrobat 9.54 Paper Capture Plug-in
- Full Text:
- Date Issued: 1969
- Authors: Badenhorst, J J
- Date: 1969 , 2013-11-14
- Subjects: Land use -- South Africa , Geomorphology -- South Africa
- Language: English
- Type: Thesis , Masters , MA
- Identifier: vital:4867 , http://hdl.handle.net/10962/d1007581 , Land use -- South Africa , Geomorphology -- South Africa
- Description: The subject has been approached in the conventional geographic manner in successive chapters, Relief, Geology, Soil, Climate, etc. In practice, the relationship between geographic factors and land use is so close that it is usually very difficult to separate the one from the other. When there is any reference to a specific relationship in any chapter, it must be borne in mind that one must always take the other geographic factors into account. In this study the stress falls on an evaluation of the present land use. Even if there is no recommendation regarding the way in which the land should be used, this survey can still be used as the basis for future planning. Intro. p.viii , KMBT_363 , Adobe Acrobat 9.54 Paper Capture Plug-in
- Full Text:
- Date Issued: 1969
An analysis of Wesleyan missionary strategy in the eastern districts of the Cape Colony and "Caffreland" between 1823 and 1838, and an attempt to determine how far it reacted to government policies in the Cape
- Authors: Duff, Allen Ernest George
- Date: 1969
- Subjects: Wesleyan Methodist Missionary Society , Missions -- South Africa -- Cape of Good Hope -- History -- Sources , Cape of Good Hope (South Africa) -- History -- 1795-1872
- Language: English
- Type: Thesis , Masters , MA
- Identifier: vital:1250 , http://hdl.handle.net/10962/d1011606 , Wesleyan Methodist Missionary Society , Missions -- South Africa -- Cape of Good Hope -- History -- Sources , Cape of Good Hope (South Africa) -- History -- 1795-1872
- Description: The purpose of this thesis has been to trace and examine the development of Wesleyan attitudes, and the actions which resulted therefrom towards the task of the evangelisation of the eastern districts of the Cape Colony and "Caffreland". These attitudes were conditioned throughout by the fact that they held certain religious principles as paramount. It is an attempt to clarify what was involved on the ecclesiastical side in this period of Wesleyan and South African history. A considerable amount of attention has been given, by various writers, to the history of the south-eastern area of South Africa in the first half of the nineteenth century. Some works have either been concerned with the more general history of the time or with the position of all the missionaries within the total political sphere. Others have concentrated on the Wesleyans particularly, either in a very general sense or in relation to one particular event, or the later decades or this half century. The period 1823 to 1833 was chosen because it covered the period of the origin of Wesleyan strategy and its first distinct phases. Where after it may be considered to have reached full maturity and become the basis of all future action in the succeeding decades. Wesleyan strategy was, to a large extent, a reaction to government policies and requires, throughout, such a consideration. The Wesleyan Missionary Society was chosen, not because on any denominational affiliations, but because of the part which it played in these areas during that time and has since played in the annuals of eastern Cape history. The approach has been to present the relevant documents in chronological order. This was done to emphasise the development over the years. Chapters have consequently been divided according to the stages or phases of this development. It has meant that subsidiary question which arise from this development have not been dealt with separately, but simply referred to as they occur. One point remains. Wesleyan correspondence from the Eastern Cape between 1837 and 1857 has disappeared from the archives of the Methodist Missionary Society in London. All attempts to trace these letters have proved futile. Consequently, it was necessary to reproduce a couple of quotes from letters contained in this correspondence which is referred to by D. Williams and C. Roxborough who had access to this material.
- Full Text:
- Date Issued: 1969
- Authors: Duff, Allen Ernest George
- Date: 1969
- Subjects: Wesleyan Methodist Missionary Society , Missions -- South Africa -- Cape of Good Hope -- History -- Sources , Cape of Good Hope (South Africa) -- History -- 1795-1872
- Language: English
- Type: Thesis , Masters , MA
- Identifier: vital:1250 , http://hdl.handle.net/10962/d1011606 , Wesleyan Methodist Missionary Society , Missions -- South Africa -- Cape of Good Hope -- History -- Sources , Cape of Good Hope (South Africa) -- History -- 1795-1872
- Description: The purpose of this thesis has been to trace and examine the development of Wesleyan attitudes, and the actions which resulted therefrom towards the task of the evangelisation of the eastern districts of the Cape Colony and "Caffreland". These attitudes were conditioned throughout by the fact that they held certain religious principles as paramount. It is an attempt to clarify what was involved on the ecclesiastical side in this period of Wesleyan and South African history. A considerable amount of attention has been given, by various writers, to the history of the south-eastern area of South Africa in the first half of the nineteenth century. Some works have either been concerned with the more general history of the time or with the position of all the missionaries within the total political sphere. Others have concentrated on the Wesleyans particularly, either in a very general sense or in relation to one particular event, or the later decades or this half century. The period 1823 to 1833 was chosen because it covered the period of the origin of Wesleyan strategy and its first distinct phases. Where after it may be considered to have reached full maturity and become the basis of all future action in the succeeding decades. Wesleyan strategy was, to a large extent, a reaction to government policies and requires, throughout, such a consideration. The Wesleyan Missionary Society was chosen, not because on any denominational affiliations, but because of the part which it played in these areas during that time and has since played in the annuals of eastern Cape history. The approach has been to present the relevant documents in chronological order. This was done to emphasise the development over the years. Chapters have consequently been divided according to the stages or phases of this development. It has meant that subsidiary question which arise from this development have not been dealt with separately, but simply referred to as they occur. One point remains. Wesleyan correspondence from the Eastern Cape between 1837 and 1857 has disappeared from the archives of the Methodist Missionary Society in London. All attempts to trace these letters have proved futile. Consequently, it was necessary to reproduce a couple of quotes from letters contained in this correspondence which is referred to by D. Williams and C. Roxborough who had access to this material.
- Full Text:
- Date Issued: 1969
An historical survey of the organs, organists and music of St. George's Cathedral, Cape Town, from 1834 to 1952
- Authors: Smith, Barry, 1939-
- Date: 1969
- Subjects: St. George's Cathedral (Cape Town, South Africa) , Organ (Musical instrument) -- South Africa -- Cape Town -- History , Organists
- Language: English
- Type: Thesis , Masters , MA
- Identifier: vital:2665 , http://hdl.handle.net/10962/d1004745 , St. George's Cathedral (Cape Town, South Africa) , Organ (Musical instrument) -- South Africa -- Cape Town -- History , Organists
- Description: From Introduction: The first recorded Church of England service at the Cape took place in 1749, but for almost a century after that date Anglicans had no place of worship of their own. From about 1807 onwards the Groote Kerk in Adderley Street was regularly lent to the Chaplain on Sundays and the Kerkraad even allowed their bells to be rung to inform 'the British that it was time for their service'. In October 1827, for the first time in history, a bishop of the Church of England visited Cape Town. This was Dr. J.T. James, Bishop of Calcutta, who landed for a few days on his first voyage to India and was met by the Governor and his staff in great state. A meeting was held at which Bishop James was present and the eighteen gentlemen discussed proposals for the building of an English Church in Cape Town. "It was proposed that the building should hold at least 1,000 people. The Bishop said that the Home Government would grant ground and half the expenses... He reminded them of their obligation to the Dutch Church, who for so many years had allowed them to use their sanctuary, and he exhorted them to be active and persevering and remain attached to the doctrine and discipline of the Church of their forefathers, that venerable Church based on the foundation of Christ and His Apostles." As a result of t his meeting the Governor gave the site in the Gardens (at the foot of the Avenue) on which St . George's Cathedral now stands, and the site was consecrated by Bishop James on October 23rd, just before he sailed for Calcutta . "But after his departure the glow faded away, difficulties and quarrels appeared... and the scheme was shelved for two years." However, on St. George's Day, 23rd April 1830, the foundation stone of St. George's Church was laid by the Governor, Sir Lowry Cole,with military and Masonic honours. A triumphal arch was erected and troops lined the streets through which the procession was to pass. The name of the street at the head of which the Cathedral stands was changed from Bergh Street to St. George' s Street, and the contract was exclusive of enclosure, gates, bells and organ, but including pulpit, reading and clerk 's desks and all the work of the altar."
- Full Text:
- Date Issued: 1969
- Authors: Smith, Barry, 1939-
- Date: 1969
- Subjects: St. George's Cathedral (Cape Town, South Africa) , Organ (Musical instrument) -- South Africa -- Cape Town -- History , Organists
- Language: English
- Type: Thesis , Masters , MA
- Identifier: vital:2665 , http://hdl.handle.net/10962/d1004745 , St. George's Cathedral (Cape Town, South Africa) , Organ (Musical instrument) -- South Africa -- Cape Town -- History , Organists
- Description: From Introduction: The first recorded Church of England service at the Cape took place in 1749, but for almost a century after that date Anglicans had no place of worship of their own. From about 1807 onwards the Groote Kerk in Adderley Street was regularly lent to the Chaplain on Sundays and the Kerkraad even allowed their bells to be rung to inform 'the British that it was time for their service'. In October 1827, for the first time in history, a bishop of the Church of England visited Cape Town. This was Dr. J.T. James, Bishop of Calcutta, who landed for a few days on his first voyage to India and was met by the Governor and his staff in great state. A meeting was held at which Bishop James was present and the eighteen gentlemen discussed proposals for the building of an English Church in Cape Town. "It was proposed that the building should hold at least 1,000 people. The Bishop said that the Home Government would grant ground and half the expenses... He reminded them of their obligation to the Dutch Church, who for so many years had allowed them to use their sanctuary, and he exhorted them to be active and persevering and remain attached to the doctrine and discipline of the Church of their forefathers, that venerable Church based on the foundation of Christ and His Apostles." As a result of t his meeting the Governor gave the site in the Gardens (at the foot of the Avenue) on which St . George's Cathedral now stands, and the site was consecrated by Bishop James on October 23rd, just before he sailed for Calcutta . "But after his departure the glow faded away, difficulties and quarrels appeared... and the scheme was shelved for two years." However, on St. George's Day, 23rd April 1830, the foundation stone of St. George's Church was laid by the Governor, Sir Lowry Cole,with military and Masonic honours. A triumphal arch was erected and troops lined the streets through which the procession was to pass. The name of the street at the head of which the Cathedral stands was changed from Bergh Street to St. George' s Street, and the contract was exclusive of enclosure, gates, bells and organ, but including pulpit, reading and clerk 's desks and all the work of the altar."
- Full Text:
- Date Issued: 1969
An investigation into chemical and biological assays of new compounds from aloes
- Authors: Mapp, R K
- Date: 1969
- Subjects: Medicinal plants -- Research -- South Africa , Botanical chemistry , Aloe -- Analysis , Aloe -- Research -- South Africa , Aloe , Aloin
- Language: English
- Type: Thesis , Masters , MSc
- Identifier: vital:3850 , http://hdl.handle.net/10962/d1012830
- Description: The drug aloes has been known since earliest times and is mentioned in the Ebers papyrus of circa 1,500 B.C. Alexander the Great is reported to have sent a commission to Socotra to investigate the aloes grown there. The chemical composition of aloes is complex, and being of plant origin, subject to variation. Both the complexity of the chemical constituents and their biological variation has resulted in a very large volume of conflicting material being published on this drug export. Since aloes is used as a purgative for both human and veterinary use, it is obviously important that the dosage and consequently the active constituents, should comply to an accurate means of standardisation. To date, despite extensive world wide research into this drug such standardisation has not been achieved. Even the methods used for the assay of the principal constituent, aloin, vary considerably in their results, and to complicate matters new chemical principles have been isolated from aloes in recent years. Consequently the purpose of this work has been to investigate the main chemical assay methods currently in use, and to determine which was the most accurate, and why discrepancies occurred in the selected assay methods. furthermore the results obtained by chemical assay have been compared with those obtained by biological assay in an attempt to correlate aloin content with purgative activity. Newly isolated compounds have been investigated biologically for the first time, and the biological assays of the resinous, glycosidal and other compounds of aloes have been performed. Intro. p.1-2.
- Full Text:
- Date Issued: 1969
- Authors: Mapp, R K
- Date: 1969
- Subjects: Medicinal plants -- Research -- South Africa , Botanical chemistry , Aloe -- Analysis , Aloe -- Research -- South Africa , Aloe , Aloin
- Language: English
- Type: Thesis , Masters , MSc
- Identifier: vital:3850 , http://hdl.handle.net/10962/d1012830
- Description: The drug aloes has been known since earliest times and is mentioned in the Ebers papyrus of circa 1,500 B.C. Alexander the Great is reported to have sent a commission to Socotra to investigate the aloes grown there. The chemical composition of aloes is complex, and being of plant origin, subject to variation. Both the complexity of the chemical constituents and their biological variation has resulted in a very large volume of conflicting material being published on this drug export. Since aloes is used as a purgative for both human and veterinary use, it is obviously important that the dosage and consequently the active constituents, should comply to an accurate means of standardisation. To date, despite extensive world wide research into this drug such standardisation has not been achieved. Even the methods used for the assay of the principal constituent, aloin, vary considerably in their results, and to complicate matters new chemical principles have been isolated from aloes in recent years. Consequently the purpose of this work has been to investigate the main chemical assay methods currently in use, and to determine which was the most accurate, and why discrepancies occurred in the selected assay methods. furthermore the results obtained by chemical assay have been compared with those obtained by biological assay in an attempt to correlate aloin content with purgative activity. Newly isolated compounds have been investigated biologically for the first time, and the biological assays of the resinous, glycosidal and other compounds of aloes have been performed. Intro. p.1-2.
- Full Text:
- Date Issued: 1969
An investigation into some aspects of Jovian decametric radiation
- Authors: Hill, I. E.
- Date: 1969
- Subjects: Jupiter (Planet) , Radiation , Magnetosphere
- Language: English
- Type: Thesis , Masters , MSc
- Identifier: vital:5552 , http://hdl.handle.net/10962/d1015034
- Description: This thesis describes observations of the flne structure in Jovian decametric radiation made at Grahamstown during the 1967-68 apparition. It was found that pulses with duration less than 0.5 milliseconds were common during fine structure storms. The restrictions placed on the source for different theories of origin of the short pulses are discussed. The variation of the probability of occurrence from year to year is analysed on the assumption that the radiation is found in directions fixed with respect to the planet's magnetic field. It is concluded that there is a factor other than the declination of Earth and the Io effect which controls the probability of occurrence. A detailed analysis suggests a beam width of 3° in latitude at Jupiter but further work is necessary to check this.
- Full Text:
- Date Issued: 1969
- Authors: Hill, I. E.
- Date: 1969
- Subjects: Jupiter (Planet) , Radiation , Magnetosphere
- Language: English
- Type: Thesis , Masters , MSc
- Identifier: vital:5552 , http://hdl.handle.net/10962/d1015034
- Description: This thesis describes observations of the flne structure in Jovian decametric radiation made at Grahamstown during the 1967-68 apparition. It was found that pulses with duration less than 0.5 milliseconds were common during fine structure storms. The restrictions placed on the source for different theories of origin of the short pulses are discussed. The variation of the probability of occurrence from year to year is analysed on the assumption that the radiation is found in directions fixed with respect to the planet's magnetic field. It is concluded that there is a factor other than the declination of Earth and the Io effect which controls the probability of occurrence. A detailed analysis suggests a beam width of 3° in latitude at Jupiter but further work is necessary to check this.
- Full Text:
- Date Issued: 1969
An investigation into some aspects of the thin layer chromatographic assay of Pregnanediol with emphasis on the suitability of this method as a clinical laboratory routine
- Authors: Paton, L T
- Date: 1969
- Subjects: Thin layer chromatography , Pregnanediol
- Language: English
- Type: Thesis , Masters , MSc
- Identifier: vital:3853 , http://hdl.handle.net/10962/d1013023
- Description: Pregnanediol (5B Pregnane- 3⋉- 20⋉- dial) is the chief urinary metabolite of progesterone, and as such is important in that variations in its concentration reflect variations in progesterone secretion. Estimations of pregnanediol concentration are therefore of considerable interest to the obstetrician and gynaecologist. Pregnanediol was first identified in the urine of pregnant women in 1929 by Marrian. Nearly ten years later Venning developed a method by which the glucuronic acid ester of pregnanediol could be extracted from the urine and its concentration gravimetrically determined. Numerous variations of the Venning theme were published in the next few years, each being claimed by its authors to be an improvement on the original. Most of these involved the estimation of the conjugated form, and it was a while before the advantage of estimating the hydrolysed aglycone was realized. Hydrolysis, when it was practised, resolved itself into two methods - namely, hydrolysis by heating the urine with a mineral acid, and enzymic hydrolysis by incubation with beta-glucuronidase. Acid hydrolysis, while producing a less clean hydrolysate, is more rapid and convenient than enzyme hydrolysis, and is used in the Klapper method which is presently the most widely used method in clinical studies. Klapper employs a double chromategraphic column separation of pregnanediol followed by colorimetric evaluation. Variations of Klapper's method have also appeared and not a few investigators have published comparisons of the various methods. Klapper himself compared his method to certain other methods and concluded that his was definitely superior. Of the accuracy of the Klapper method there is no doubt. Subsequent methods have proved more sensitive, but in terms of practicability Klapper's is the method of choice. As was pointed out with some complacency, "practicability is most satisfactory, one technician readily performing some twenty determinations in one week." In contrast to the flood of criticisms, comparisons, variations, claims and counter-claims which accompanied the publication of the abovementioned methods, the thin layer chromatographic method perfected by Waldi attracted very little attention. It is very much more rapid than all other existing techniques, is very sensitive, specific and of acceptable accuracy. In an attempt to ensure its usefulness for clinical and medical research laboratories, the Waldi method has been marketed in 'kit' form. It is intended primarily as a diagnostic aid in establishing pregnancy, and as such it might have enjoyed considerable application had it not been for the advent of the immunological method of pregnancy diagnosis which is very much more rapid. Nevertheless, the Waldi method, used purely as a means of assessing the pregnanediol content of the urine is extremely useful, and it is the purpose of this investigation to establish this usefulness, especially with respect to routine clinical investigations. The validity of some diagnoses which are based on pregnanediol assay results, is also investigated. As it is impossible to explain the significance or usefulness of a pregnanediol assay without first explaining the functions of progesterone, some time and space must be expended in a brief description, firstly, of the role played by progesterone in the phenomenon of the menstrual cycle, and secondly, of its vital importance in pregnancy. It must be realized that progesterone is only one of the many hormones involved in these events, but, in order to limit the introduction of extraneous detail, no mention is made of the other hormonal participants except when necessary for the understanding of the whole. It may be mentioned here that much of the evidence that was used for the elucidation of the functions and origins of progesterone, was derived from studies of its metabolite, pregnanediol.
- Full Text:
- Date Issued: 1969
- Authors: Paton, L T
- Date: 1969
- Subjects: Thin layer chromatography , Pregnanediol
- Language: English
- Type: Thesis , Masters , MSc
- Identifier: vital:3853 , http://hdl.handle.net/10962/d1013023
- Description: Pregnanediol (5B Pregnane- 3⋉- 20⋉- dial) is the chief urinary metabolite of progesterone, and as such is important in that variations in its concentration reflect variations in progesterone secretion. Estimations of pregnanediol concentration are therefore of considerable interest to the obstetrician and gynaecologist. Pregnanediol was first identified in the urine of pregnant women in 1929 by Marrian. Nearly ten years later Venning developed a method by which the glucuronic acid ester of pregnanediol could be extracted from the urine and its concentration gravimetrically determined. Numerous variations of the Venning theme were published in the next few years, each being claimed by its authors to be an improvement on the original. Most of these involved the estimation of the conjugated form, and it was a while before the advantage of estimating the hydrolysed aglycone was realized. Hydrolysis, when it was practised, resolved itself into two methods - namely, hydrolysis by heating the urine with a mineral acid, and enzymic hydrolysis by incubation with beta-glucuronidase. Acid hydrolysis, while producing a less clean hydrolysate, is more rapid and convenient than enzyme hydrolysis, and is used in the Klapper method which is presently the most widely used method in clinical studies. Klapper employs a double chromategraphic column separation of pregnanediol followed by colorimetric evaluation. Variations of Klapper's method have also appeared and not a few investigators have published comparisons of the various methods. Klapper himself compared his method to certain other methods and concluded that his was definitely superior. Of the accuracy of the Klapper method there is no doubt. Subsequent methods have proved more sensitive, but in terms of practicability Klapper's is the method of choice. As was pointed out with some complacency, "practicability is most satisfactory, one technician readily performing some twenty determinations in one week." In contrast to the flood of criticisms, comparisons, variations, claims and counter-claims which accompanied the publication of the abovementioned methods, the thin layer chromatographic method perfected by Waldi attracted very little attention. It is very much more rapid than all other existing techniques, is very sensitive, specific and of acceptable accuracy. In an attempt to ensure its usefulness for clinical and medical research laboratories, the Waldi method has been marketed in 'kit' form. It is intended primarily as a diagnostic aid in establishing pregnancy, and as such it might have enjoyed considerable application had it not been for the advent of the immunological method of pregnancy diagnosis which is very much more rapid. Nevertheless, the Waldi method, used purely as a means of assessing the pregnanediol content of the urine is extremely useful, and it is the purpose of this investigation to establish this usefulness, especially with respect to routine clinical investigations. The validity of some diagnoses which are based on pregnanediol assay results, is also investigated. As it is impossible to explain the significance or usefulness of a pregnanediol assay without first explaining the functions of progesterone, some time and space must be expended in a brief description, firstly, of the role played by progesterone in the phenomenon of the menstrual cycle, and secondly, of its vital importance in pregnancy. It must be realized that progesterone is only one of the many hormones involved in these events, but, in order to limit the introduction of extraneous detail, no mention is made of the other hormonal participants except when necessary for the understanding of the whole. It may be mentioned here that much of the evidence that was used for the elucidation of the functions and origins of progesterone, was derived from studies of its metabolite, pregnanediol.
- Full Text:
- Date Issued: 1969
Aspects of the ecology of piscivorous birds of Lake Kyle Rhodesia
- Authors: Junor, F J R
- Date: 1969
- Subjects: Bird populations -- Zimbabwe , Water birds -- Zimbabwe
- Language: English
- Type: Thesis , Masters , MSc
- Identifier: vital:5909 , http://hdl.handle.net/10962/d1015201
- Description: [From Introduction]. From an early period in the lake's history research was undataken to determine the potential of Kyle as a source of edible fish, In such a study, knowledge of the number and weight of fish consumed by piscivorous birds would seem to be an obvious consideration. Accordingly special investigation was undertaken into the food requirements of fish eating birds which live in the lake area. The method employed, on this occasion, to obtain the required information has differed radically from that more generally used by investigators working with similar objects in view. The common practise has been to examine the stomach contents of a considerable number of birds of the same species, which have been destroyed in order to make information available.
- Full Text:
- Date Issued: 1969
- Authors: Junor, F J R
- Date: 1969
- Subjects: Bird populations -- Zimbabwe , Water birds -- Zimbabwe
- Language: English
- Type: Thesis , Masters , MSc
- Identifier: vital:5909 , http://hdl.handle.net/10962/d1015201
- Description: [From Introduction]. From an early period in the lake's history research was undataken to determine the potential of Kyle as a source of edible fish, In such a study, knowledge of the number and weight of fish consumed by piscivorous birds would seem to be an obvious consideration. Accordingly special investigation was undertaken into the food requirements of fish eating birds which live in the lake area. The method employed, on this occasion, to obtain the required information has differed radically from that more generally used by investigators working with similar objects in view. The common practise has been to examine the stomach contents of a considerable number of birds of the same species, which have been destroyed in order to make information available.
- Full Text:
- Date Issued: 1969
Novel components of Acacia mearnsii
- Authors: Ilsley, Anthony Hugh
- Date: 1969
- Language: English
- Type: Thesis , Masters , MSc
- Identifier: vital:21164 , http://hdl.handle.net/10962/6673
- Description: From Summary: From the complex mixture of flavonoid components present in the heartwood of the black wattle tree (Acacia mearnsii) four new compounds have been isolated. These include a novel dioxane-linked dimeric proanthocyanidin based on leucofisetinidin. This is the first proanthocyanidin of its type to be isolated from a natural source. I solation was achieved by standard counter current partition separation and preparative paper chromatographic techniques. The compound, which forms an anthocyanidin, was identified by micro-degradation, and n.m.r. and mass spectrometry. Comparison of the spin-spin coupling constants of the heterocylic rings' protons with those of authentic monomeric flavan-3, 4-diols showed that the heterocyclic rings of the two symmetrical flavan moeities have 2,3-trans-3,4-cis configurations. Dreiding models suggest that the central dioxane ring has a half-boat conformation while the heterocyclic rings of the two flavan units have five point coplanar conformations. Two possible absolute configurations have been proposed
- Full Text:
- Date Issued: 1969
- Authors: Ilsley, Anthony Hugh
- Date: 1969
- Language: English
- Type: Thesis , Masters , MSc
- Identifier: vital:21164 , http://hdl.handle.net/10962/6673
- Description: From Summary: From the complex mixture of flavonoid components present in the heartwood of the black wattle tree (Acacia mearnsii) four new compounds have been isolated. These include a novel dioxane-linked dimeric proanthocyanidin based on leucofisetinidin. This is the first proanthocyanidin of its type to be isolated from a natural source. I solation was achieved by standard counter current partition separation and preparative paper chromatographic techniques. The compound, which forms an anthocyanidin, was identified by micro-degradation, and n.m.r. and mass spectrometry. Comparison of the spin-spin coupling constants of the heterocylic rings' protons with those of authentic monomeric flavan-3, 4-diols showed that the heterocyclic rings of the two symmetrical flavan moeities have 2,3-trans-3,4-cis configurations. Dreiding models suggest that the central dioxane ring has a half-boat conformation while the heterocyclic rings of the two flavan units have five point coplanar conformations. Two possible absolute configurations have been proposed
- Full Text:
- Date Issued: 1969
Ray tracing at very low frequencies when the effects of heavy ions are considered
- Authors: Terry, Patrick D.
- Date: 1969
- Subjects: Ionospheric radio wave propagation , Ionosphere -- Graphic methods , Ray tracing algorithms
- Language: English
- Type: Thesis , Masters , MSc
- Identifier: vital:5542 , http://hdl.handle.net/10962/d1013350
- Description: The behaviour of very low frequency (V.L.F.) radio waves propagating in an ionlzed medium, such as the ionosphere and exosphere, may exhibit markedly different characteristics from those of frequencies such as are used for communication in the short-wave bands. The anisotropy introduced into the medium by the presence of the earth's magnetic field has a significant effect, while at frequencies below about 5KHz the presence of heavy positive ions may further affect propagation. In particular it is found that, under suitable conditions, V.L.F. signals may propagate along paths closely following the lines of force of the earth's magnetic field. The study of such signals has a practical interest in that, from consideration of their propagation times and dispersion properties, they can provide an inexpensive method of determining electron densities at well beyond the range of satellite investigation. For this reason, if for no other, theoretical investigation of the paths traced in a model exosphere may indicate how closely the model exosphere approximates the true one. A powerful method of tracing out these paths is by the use of "ray-tracing", provided the properties of the medium vary slowly in space, a condition not always fulfilled in practice. It has been the subject of this thesis to carry out ray-tracing studies, in particular noting the effects of the positive ions in the exosphere; effects which have not received much notice before as they were thought to be unimportant. Intro., p. 1-2.
- Full Text:
- Date Issued: 1969
- Authors: Terry, Patrick D.
- Date: 1969
- Subjects: Ionospheric radio wave propagation , Ionosphere -- Graphic methods , Ray tracing algorithms
- Language: English
- Type: Thesis , Masters , MSc
- Identifier: vital:5542 , http://hdl.handle.net/10962/d1013350
- Description: The behaviour of very low frequency (V.L.F.) radio waves propagating in an ionlzed medium, such as the ionosphere and exosphere, may exhibit markedly different characteristics from those of frequencies such as are used for communication in the short-wave bands. The anisotropy introduced into the medium by the presence of the earth's magnetic field has a significant effect, while at frequencies below about 5KHz the presence of heavy positive ions may further affect propagation. In particular it is found that, under suitable conditions, V.L.F. signals may propagate along paths closely following the lines of force of the earth's magnetic field. The study of such signals has a practical interest in that, from consideration of their propagation times and dispersion properties, they can provide an inexpensive method of determining electron densities at well beyond the range of satellite investigation. For this reason, if for no other, theoretical investigation of the paths traced in a model exosphere may indicate how closely the model exosphere approximates the true one. A powerful method of tracing out these paths is by the use of "ray-tracing", provided the properties of the medium vary slowly in space, a condition not always fulfilled in practice. It has been the subject of this thesis to carry out ray-tracing studies, in particular noting the effects of the positive ions in the exosphere; effects which have not received much notice before as they were thought to be unimportant. Intro., p. 1-2.
- Full Text:
- Date Issued: 1969
Static and ultrasonic elastic moduli of wool, mohair and kemp fibres
- Authors: King, Neville Edwin
- Date: 1969
- Subjects: Moduli theory , Mohair , Wool
- Language: English
- Type: Thesis , Masters , MSc
- Identifier: vital:5528 , http://hdl.handle.net/10962/d1012640 , Moduli theory , Mohair , Wool
- Description: Fibres used in textiles can be classified broadly into natural fibres and synthetic fibres. Natural fibres can be either animal, such as wool, mohair and camel hair, or vegetable such as cotton, flax and hemp. In the development of synthetic fibres numerous polymers have emerged which have no real natural counterpart and are unique in their mechanical and chemical behaviour. Often the synthetic counterpart of a natural fibre has properties with certain advantages from the textile point of view, but, simultaneously, may exhibit other properties which have disadvantages. Nylon 6 and nylon 6-6, for exemple, are extremely strong and generally easier to dye than animal fibres. On the other hand, they absorb relatively little water vapour and therefore do not give the buffering action characteristic of hygroscopic fibres, once they are woven or knitted into cloth. All textile fibres belong to the chemical class of polymers, i.e. they are made up of repeating molecular units which are linked together to form long chains. In wool the chains are made up of amino-acids which cluster together to form protein chains. Three of these protein chains, coil around each other to form what is termed a proto-fibril. The proto-fibrils make up the micro-fibrils, each of these consisting of eleven of the three chain proto-fibrils. The micro-fibrils, in turn, pack together in bundles which run parallel to the length of the wool fibre and are termed macro-fibrils. Sulphur rich amino-acids fill up the spaces between the micro-fibrils forming a matrix which binds the system into a continuous material. Intro., p. 1.
- Full Text:
- Date Issued: 1969
- Authors: King, Neville Edwin
- Date: 1969
- Subjects: Moduli theory , Mohair , Wool
- Language: English
- Type: Thesis , Masters , MSc
- Identifier: vital:5528 , http://hdl.handle.net/10962/d1012640 , Moduli theory , Mohair , Wool
- Description: Fibres used in textiles can be classified broadly into natural fibres and synthetic fibres. Natural fibres can be either animal, such as wool, mohair and camel hair, or vegetable such as cotton, flax and hemp. In the development of synthetic fibres numerous polymers have emerged which have no real natural counterpart and are unique in their mechanical and chemical behaviour. Often the synthetic counterpart of a natural fibre has properties with certain advantages from the textile point of view, but, simultaneously, may exhibit other properties which have disadvantages. Nylon 6 and nylon 6-6, for exemple, are extremely strong and generally easier to dye than animal fibres. On the other hand, they absorb relatively little water vapour and therefore do not give the buffering action characteristic of hygroscopic fibres, once they are woven or knitted into cloth. All textile fibres belong to the chemical class of polymers, i.e. they are made up of repeating molecular units which are linked together to form long chains. In wool the chains are made up of amino-acids which cluster together to form protein chains. Three of these protein chains, coil around each other to form what is termed a proto-fibril. The proto-fibrils make up the micro-fibrils, each of these consisting of eleven of the three chain proto-fibrils. The micro-fibrils, in turn, pack together in bundles which run parallel to the length of the wool fibre and are termed macro-fibrils. Sulphur rich amino-acids fill up the spaces between the micro-fibrils forming a matrix which binds the system into a continuous material. Intro., p. 1.
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- Date Issued: 1969