Browsing Natural and Agricultural Sciences by Title

Browsing Natural and Agricultural Sciences by Title

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  • Mabula, M.D.; Cobzas, Stefan (Elsevier, 2015-04)
    Some versions of the fundamental principles of the functional analysis in asymmetric normed spaces – the Open Mapping Theorem, the Closed Graph Theorem and the Uniform Boundedness Principle – are proved. The proofs are ...
  • Lindsey, Peter Andrew; Barnes, Jonathan I.; Nyirenda, Vincent R.; Pumfrett, Belinda; Tambling, Craig J.; Taylor, William Andrew; t'Sas-Rolfes, Michael; Roberts, David L. (Public Library of Science, 2013-12-18)
    The number and area of wildlife ranches in Zambia increased from 30 and 1,420 km2 in 1997 to 177 and ,6,000 km2 by 2012. Wild ungulate populations on wildlife ranches increased from 21,000 individuals in 1997 to ,91,000 ...
  • Swanepoel, Wessel (National Botanical Institute, 2013-01)
    Zanha africana (Radlk.) Exell is a tropical African savanna tree with a distribution that extends from Kenya southwards through Tanzania, Malawi, Mozambique, Zambia, Zimbabwe and southern Angola (Exell 1966; Beentje ...
  • Courbin, Nicolas; Loveridge, Andrew J.; Fritz, Hervé; Macdonald, David W.; Patin, Rémi; Valeix, Marion; Chamaillé-Jammes, Simon (Wiley, 2019-01)
    1. Diel migrations (DM; back and forth diel movements along an ecological gradient) undertaken by prey to avoid predators during the day have been demonstrated in many taxa in aquatic ecosystems. In terrestrial ecosystems, ...
  • Olaide, Olabimpe Yewande; Tchouassi, David P.; Yusuf, Abdullahi Ahmed; Pirk, Christian Walter Werner; Masiga, Daniel K.; Sain, Rajinder K.; Torto, Baldwyn (Public Library of Science, 2019-06-10)
    BACKGROUND : African trypanosomosis, primarily transmitted by tsetse flies, remains a serious public health and economic challenge in sub-Saharan Africa. Interventions employing natural repellents from non-preferred hosts ...
  • Mafusire, Cosmas; Kruger, T.P.J. (Tjaart) (Taylor and Francis, 2020)
    We present a derivation of a formula for Zernike-Gauss circle coefficients expressed in terms of Zernike circle coefficients for a circular Gaussian pupil by revisiting a method in which theorthonormal Zernike-Gauss circle ...
  • Madanha, Sesuai Yasha (University of Pretoria, 2019)
    This work is a contribution to the classification of finite groups with an irreducible character that vanishes on exactly one conjugacy class. Specifically, in this thesis we study finite non-solvable groups G that satisfy ...
  • Jooste, Alta (University of Pretoria, 2012)
    Read abstract in the document
  • Driver, Kathy (Cathryn Helena Stanford); Jordaan, Kerstin Heidrun (Elsevier, 2009)
    We study interlacing properties of the zeros of two types of linear combinations of Laguerre polynomials with different parameters, namely Rn = Lαn + aL α’n and Sn = Lαn + bLα’n-1. Proofs and numerical counterexamples are ...
  • Beardon, Alan; Driver, Kathy (Cathryn Helena Stanford); Jordaan, Kerstin Heidrun (Springer, 2011-07)
    Please read abstract in article.
  • Madanha, Sesuai Yasha (De Gruyter, 2020-03)
    We classify finite non-solvable groups with a faithful primitive complex irreducible character that vanishes on a unique conjugacy class. Our results answer a question of Dixon and Rahnamai Barghi and suggest an extension ...
  • Driver, Kathy; Jordaan, Kerstin Heidrun (National Academy of Science of Ukraine, 2016)
    Please read abstract in the article.
  • Robertson, Courtney; Dovi, Pamela; Smith, Lauren; Mangoma, Kudzai (New Media Publishing, 2012-01)
    Over three-billion people worldwide are afflicted with micronutrient malnutrition, caused largely by a dietary deficiency of vitamins and minerals. Zinc deficiency is endemic amongst developing countries, and ...
  • Gore, Dominic Lado Marino; Lehloenya, Khoboso Christina (Science Publications, 2020)
    The present study evaluated the effect of β-carotene supplementation and oestrous synchronization protocol on ovarian activity and fertility of Saanen does during the breeding season. The supplemented group received 100 ...
  • Didenko, P.; Selyshchev, Pavel (G.V. Kurdyumov Institute for Metal Physics, 2016)
    В работе теоретически получена временная зависимость скорости ползу- чести металла под облучением. Установлены условия существования рав- ных нулю минимумов скорости ползучести и времена их появления. Ис- следовано, как ...