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Rhodes eResearch Repository (2,340 recursos)
Repository of the academic and research output of the Rhodes University community.

Mostrando recursos 101 - 120 de 457

101. In search of optimal stocking regimes in semi-arid grazing lands: One size does not fit all - Campbell, Bruce M.; Gordon, Iain J.; Luckert, Martin K.; Petheram, Lisa; Vetter, Susanne
We discuss the search for optimal stocking regimes in semi-arid grazing lands.

102. Electrochemical properties of benzylmercapto and dodecylmercapto tetra substituted nickel phthalocyanine complexes: Electrocatalytic oxidation of nitrite - Agboola, Bolade; Ozoemena, K.I.; Nyokong, Tebello
The NiTBMPc complex was successfully deposited on both gold and glassy carbon electrodes by electropolymerisation while NiTDMPc complex was deposited on gold electrode only.

103. In vitro permeation of progesterone from a gel through the shed skin of three different snake species - Haigh, J.M.; Beyssac, E.; Chanet, L.; Aiache, J-M.
The membranes used were the dorsal and ventral portions of the shed skin of three different species of snake.

104. Analysis of chromameter results obtained from corticosteroid-induced skin blanching assay: comparison of visual and chromameter data - Schwarb, F.P.; Smith, E.W.; Haigh, J.M.; Surber, C.
In a Guidance document, the American FDA recommends the use of a Minolta chromameter rather than the human eye for the quantitative assessment of the pharmacodynamic blanching response produced by topical application of corticosteroids.

105. On the correlation between annealing and variabilities in pulsed-luminescence from quartz - Chithambo, M.L.
Properties of luminescence lifetimes in quartz related to annealing between 500 and 900ºC have been investigated.

106. Regulation within the supracellular highway - plasmodesma are the key - Botha, C.E.J.; Cross, R.H.M.
Plasmodesmal connections are unique, highly dynamic intercellular structures that are lined by the plasmamembrane.

107. The effect of fluctuating substrate salinity on the yield and flag leaf photosynthesis of wheat. - Beckett, R.P.; Drennan, P.M.; Botha, C.E.J.
The effects of constant and fluctuating substrate salinity on flag leaf photosynthesis and grain yield of wheat were investigated.

108. Water resources in Botswana with particular reference to the savanna regions - du Plessis, A.J.E.; Rowntree, K.M.
Good planning, focussing on both the short and long-term effects of water use, is needed in water management strategies.

109. The thermal decomposition of copper(II) oxalate revisited - Lamprecht, E.; Watkins, G.M.; Brown, M.E.
DSC, TG and TG-FT-IR, and XRPD have been used to examine the effects of supposedly inert atmospheres of argon and nitrogen on the mechanism of the thermal decomposition of copper(II) oxalate.

110. Novel amperometric glucose biosensor based on an ether-linked cobalt(II) phthalocyanine–cobalt(II) tetraphenylporphyrin pentamer as a redox mediator - Ozoemena, K.I.; Nyokong, Tebello
The development of cobalt(II) phthalocyanine–cobalt(II) tetra(5-phenoxy-10,15,20-triphenylporphyrin), (CoPc–(CoTPP)[subscript 4]) pentamer as a novel redox mediator for amperometric enzyme electrode sensitive to glucose is described.

111. Cellulases (CMCases) and polyphenol oxidases from thermophilic Bacillus spp. isolated from compost - Mayende, L.; Wilhelmi, B.S.; Pletschke, B.I.
Maximal cellulase activity was determined as 1.333 mg glucose released ml[superscript ?1] min[superscript ?1].

112. Farming against the odds : an examination of the challenges facing farming and rural development in the Eastern Cape province of South Africa - Nel, E.L.; Davies, J.
Through the medium of a case study of the Eastern Cape province, the obstacles and opportunities facing the two predominant farming groups —emerging black small-scale farmers and white commercial farmers — are examined.

113. Rural self-reliance strategies in South Africa: community initiatives and external support in the former black homelands - Nel, E.L.; Binns, T.
This paper examines the relevance of the concept of self-reliance in the context of rural community economic development in South Africa.

114. The role of ‘African Chemists’ in the health care system of the Eastern Cape province of South Africa - Cocks, M.L.; Dold, A.P.
Self-medication is documented as an integral part of health care therapy in developing countries such as Ethiopia, Cameroon, Uganda and Mexico.

115. Effects of temperature and salinity on the standard metabolic rate (SMR) of the caridean shrimp Palaemon peringueyi - Allan, E.L.; Froneman, P.W.; Hodgson, A.N.
The standard metabolic rate (SMR) of the caridean shrimp Palaemon peringueyi to changes in temperature (15–30 °C), salinity (0–45‰) and a combination thereof was investigated.

116. Sedimentology of the upper Karoo fluvial strata in the Tuli Basin, South Africa - Bordy, E.M.; Catuneanu, O.
The sedimentary rocks of the Karoo Supergroup in the Tuli Basin (South Africa) may be grouped in four stratigraphic units: the basal, middle and upper units, and the Clarens Formation.

117. Deconstructing the Transvaal Supergroup, South Africa: implications for Palaeoproterozoic palaeoclimate models - Moore, J.M.; Tsikos, H.; Polteau, S.
The new stratigraphy documents an extensive (100 Ma) and continuous cold-climate episode with a glacial maximum at the Makganyene Formation diamictite.

118. Magma flow inferred from AMS fabrics in a layered mafic sill, Insizwa, South Africa - Ferré, E.C.; Bordarier, C.; Marsh, J.S.
Throughout the 78 stations of this study (699 specimens), magnetic susceptibilities (K[subscript m]) range from 750 to 10,000×10[superscript (?6)] SI.

119. Electrocatalysis of oxidation of 2-mercaptoethanol, l-cysteine and reduced glutathione by adsorbed and electrodeposited cobalt tetra phenoxypyrrole and tetra ethoxythiophene substituted phthalocyanines - Sehlotho, N.; Nyokong, Tebello; Zagal, J.H.; Bedioui, F.
Catalytic activity of cobalt tetra ethoxythiophene and cobalt tetra phenoxypyrrole phthalocyanine complexes towards oxidation of 2-mercaptoethanol, L-cysteine and reduced glutathione is reported.

120. Symplastic Solute Transport and Avocado Fruit Development: A Decline in Cytokinin/ABA Ratio is Related to Appearance of the Hass Small Fruit Variant - Moore-Gordon, C.S.; Cowan, A.K.; Bertling, I.; Botha, C.E.J.; Cross, R.H.M.
Studies on the effect of fruit size on endogenous ABA and isopentenyladenine (iP) in developing avocado (Persea americana Mill.

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