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A study of the rabbit eye test system to determine the activity of acidic non-steroidal anti-inflammatory agents

  • Authors: Wiseman, Ian Charles
  • Date: 1977
  • Subjects: Nonsteroidal anti-inflammatory agents , Anti-inflammatory agents
  • Language: English
  • Type: Thesis , Masters , MSc
  • Identifier: vital:3855 , http://hdl.handle.net/10962/d1013276
  • Description: From introduction : "Inflammation per se, has been defined sufficiently to permit a rational approach to the search for drugs that modify this process, but satisfactory animal models for most rheumatoid diseases are not available". (Swingle 1974) In the search for new meaningful procedures for the detection and evaluation of anti-inflammatory drugs, the rabbit eye as a test system was studied.
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  • Date Issued: 1977

Die psigopaat as kliënt in die Maatskaplike Werk

  • Authors: Venter, Pieter Viviers
  • Date: 1977
  • Language: Afrikaans
  • Type: Thesis , Masters , MSocSc
  • Identifier: vital:21106 , http://hdl.handle.net/10962/6410
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  • Date Issued: 1977

Gewestelike verskynsels in die Afrikaanse spreektaal van Oos-Kaapland met spesiale verwysing na Albanie

  • Authors: Van der Mescht, J W F (Johannes Willem Frederik)
  • Date: 1977
  • Subjects: Afrikaans language -- Dialects
  • Language: Afrikaans
  • Type: Thesis , Masters , MA
  • Identifier: vital:3643 , http://hdl.handle.net/10962/d1014568
  • Description: By 'n dialekgeografiese studie van hierdie aard sal dit by uitstek die verstandigste wees om te begin by 'n omgewing waarin die ondersoeker gebore is en grootgeword het. Die omgang van die ondersoek en die uitgestrektheid van die gebied wat hierby betrokke is maak dit egter vir 'n boorling net so moeilik as vir 'n goeie waarnemer uit enige ander spraakgebied wat ook daartoe in staat behoort te wees om bepaalde foniese, leksikale, grammatiese, semantiese en sintaktiese verskynsels, eienaardighede en tendensies in die spreektaal op te merk. My bekendheid en omgang met Afrikaanssprekendes in hierdie streek wil ek nietemin kortliks soos volg aandui: (a) Wat vir hierdie studie as "randgebiede" beskou kan word. Gebore en opgegroei in Willowmore (19 jaar), onderwysopleiding op Graaff-Reinet (3 jaar). Onderwysondervinding In die distrik Steytlerville (2 ½ jaar). (b) Die eintlike ondersoekgebied. Onderwysondervinding in Oos-Londen en omgewing (6 jaar) , Grahamstad (10 ½ jaar) afgesien van talle lisensies in Oos-Londen en Port E1izabeth en besoeke aan omliggende dorpe en distrikte.
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  • Date Issued: 1977

Colour vision of the citrus psylla Trioza erytreae (Del Guercio) (Homoptera: Psyllidae) in relation to alightment colour preferences

  • Authors: Urban, Alan Joseph
  • Date: 1977
  • Subjects: Trioza , Homoptera , Jumping plant-lice , Color vision
  • Language: English
  • Type: Thesis , Doctoral , PhD
  • Identifier: vital:5885 , http://hdl.handle.net/10962/d1013286
  • Description: The colour vision of adult citrus psylla, Trioza erytreae, was investigated in the laboratory using the behavioural parameters: alightment and walking. Light green flushing leaves (under which the nymphs develop) were significantly preferred, visually, to dark green mature leaves for alightment. Diffuse reflectance spectroscopy showed (when expressed in the parameters of human colour vision) that flush has a very slightly longer dominant wavelength, and roughly double the reflectance and purity. Alightrnent frequency correlated almost equally well with "purity" (as noted by Moericke, 1952 et seq., in "yellow-sensitive" aphids) as with the aphidological colour parameter "long/short ratio" developed by Kennedy et al. (1961). Elucidation of the mechanism underlying the citrus psylla's alightment colour preference was initially attempted with a printed spectrum and several paint series of measured spectral characteristics. It was clear that T.erytreae belongs to the "yellow-sensitive" group of Homoptera, but it was impossible to distinguish which pararneter(s) of colour the psyllids were responding to. Phototactic (walking) response to the individual parameters of colour was therefore measured using a monochromator. The phototactic action spectrum (against wavelength) was tri-modal, with peaks in the yellow-green (YG), blue (B), and ultra= violet (UV). Rate of phototaxis was not influenced by bandwidth (roughly equivalent to purity), but was proportional to intensity (roughly equivalent to reflectance). To investigate the influence of the above three wavelength regions on alightment, use was made of a very simple flight chamber incorporating a target of coloured light. Yellow-green and UV light both independently stimulated alightment . Their effect was additive. Different thresholds indicated distinct YG and UV receptor systems. Blue light alone did not stimulate alightment, and was strongly alightment-inhibitory in combination both with YG and with UV light. On the basis of the above physiological/behavioural findings, a new alightment formula was drawn up for describing the hamopteran's apparent manner of alightment determining integration of surface reflectance. The flush preference and alightment distributions on the series of artificial surfaces were found to correlate slightly more accurately, on average, as well as more consistently, with the new formula than with previously-available colour parameters. These findings are placed in perspective to the literature, and their possible economic relevance is discussed.
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  • Date Issued: 1977

Hugh Tracey memorial service

Hugh Tracey memorial service 4

Nkondo kuLibya

Hugh Tracey's favourite recordings and others made for his memorial service

African art and myth

Plan showing proposed subdivisions of Erf 2918, Grahamstown, September 1977

Poetry's next-door neighbour: inaugural lecture delivered at Rhodes University

An investigation of the relationship between acculturation, n achievement and n affiliation in Owambo

  • Authors: Steyn, Daniël Marthinus
  • Date: 1977
  • Subjects: Ovambo (African people) , Acculturation -- Namibia , Achievement motivation , Affiliation (Psychology)
  • Language: English
  • Type: Thesis , Doctoral , PhD
  • Identifier: vital:3241 , http://hdl.handle.net/10962/d1013295
  • Description: The contents of this thesis were mainly determined by the traditional methodological requirements for a thesis of this nature. However a need was felt to include a somewhat expanded survey of the interrelationship between anthropology and psychology. This "need" developed during a review of the above-mentioned interrelationship especially when we found that the historical interaction between these two disciplines had never been followed from the earliest times to the present. Furthermore, although different writers have treated different aspects of this interaction, not one could be found that had treated all the different angles of the relationship. Thus although it is a well known fact that there is a prominent relationship between these two disciplines this was found to be quite inadequately documented. Furthermore, it is usually discussed from either a psychological or an anthropological viewpoint. The hazy view of the interrelationship between these two disciplines is naturally a frustrating situation for any researcher in this field - especially one who would prefer to have a view of the position of his research within the wider panorama of research surrounding it. Intro., p. 1.
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  • Date Issued: 1977

Title Not Specified

Title Not Specified

Masithi Amen

Hugh Tracey memorial service 4

Hugh Tracey memorial service

Hugh Tracey memorial service 1

  • Authors: Stanley Grassow (1st speaker) , Dennis Etheredge (2nd speaker) , Dr Philip Tobias (3rd Speaker) , Tracey, Andrew T N
  • Date: 1977
  • Subjects: Tracey, Hugh , Memorial service , Autobiography , Ethnomusicology , Sub-Saharan African music , Africa South Africa Saronde Farm f-sa
  • Language: English
  • Type: sound recordings , field recordings , sound recording-musical
  • Identifier: http://hdl.handle.net/10962/112171 , vital:33555 , International Library of African Music, Rhodes University, Grahamstown, South Africa , ATC127a-01
  • Description: Stanley Grassow talking about Hugh Tracey's background of his cresendo music followed by prayer , Dennis Etheredge giving a brief background on Hugh Tracey autobiography which he had read entitled "A river left for me" and also how ILAM came into being in 1953 , Philip Tobias speaking of his first encounter with Hugh Tracey's; Hugh Tracey's contribution on his works of anthropology; his pioneer study of African music termed as ethnomusicology; summary of Hugh Tracey as black man with a white face whose writings were excellent, great communicator and that Hugh Tracey saw music of Africa as the voice of the soul of Africa
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  • Date Issued: 1977

Aloe bainesii in Grahamstown, 1977

  • Authors: Skead, C J (Cuthbert John)
  • Date: 1977
  • Subjects: Aloe -- South Africa -- Eastern Cape -- Photographs
  • Language: English
  • Type: mixed material , photographs , landscape photographs
  • Identifier: http://hdl.handle.net/10962/72811 , vital:30117
  • Description: Caption: "Two of five magnificent Aloe Bainesii at entrance to Mr. Basil Gowie's property in Oatlands, Grahamstown, July 1977, the site of the old firm of W.C. Gowie & Sons, nurserymen & seedsmen."The scar at the base of the lefthand tree occurred in June 1977 when this whole section of the tree 'calved' from the main stem on its own. Two other large A.bainesii trees, almost as large grow to the left, out of the picture, and a fifth can be seen in the near distance behind the two figured. These pictures may prove to be significant in that trees of comparable size nearby in Oatlands are gradually collapsing as if having reached their limits."
  • Full Text: false
  • Date Issued: 1977

Hugh Tracey's favourite recordings and others made for his memorial service

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