Browsing Natural and Agricultural Sciences by Title

Browsing Natural and Agricultural Sciences by Title

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  • Can the carbon and nitrogen isotope values of offspring be used as a proxy for their mother’s diet? Using foetal physiology to interpret bulk tissue and amino acid δ15N values 
    Lubcker, Nico; Whiteman, John P.; Newsome, Seth D.; Millar, Robert P.; De Bruyn, P.J. Nico (Oxford University Press, 2020-07)
    Please read abstract in the article.
  • Can vegetation be discretely classified in species-poor environments? Testing plant community concepts for vegetation monitoring on sub-Antarctic Marion Island 
    Van der Merwe, Stephni; Greve, Michelle; Skowno, Andrew Luke; Hoffman, Michael Timm; Cramer, Michael Denis (Wiley, 2023-01)
    The updating and rethinking of vegetation classifications is important for ecosystem monitoring in a rapidly changing world, where the distribution of vegetation is changing. The general assumption that discrete and ...
  • Can we improve postgraduate degree throughput rates? 
    Wingfield, Brenda D. (Academy of Science of South Africa, 2011)
    Student throughput rates have become a much debated topic, not only in the South African academic environment but in many parts of the world. Of particular concern are Master's and PhD degrees: how many years should students ...
  • Can you show you are a good lecturer? 
    Wood, Leigh N.; Harding, Ansie (Taylor & Francis, 2007-01)
    Measurement of the quality of teaching activities is becoming increasingly important since universities are rewarding performance in terms of promotion, awards and bonuses and research is no longer the only key performance ...
  • Canard solutions in equations with backward bifurcations of the quasi-steady state manifold 
    Banasiak, Jacek; Seuneu Tchamga, M.S.; Szymańska-Dȩbowska, Katarzyna (Elsevier, 2019-03)
    In this paper we consider a delayed exchange of stability for solutions of a singularly perturbed nonautonomous equation in the case when a backward bifurcation of its quasi-steady (critical) manifolds occurs. This result ...
  • Cancer prevalence in 129 breast-ovarian cancer families tested for BRCA1 and BRCA2 mutations 
    Schlebusch, Carina M.; Dreyer, Greta; Sluiter, M.D.; Yawitch, T.M.; Van den Berg, H.J.; Jansen van Rensburg, Elizabeth (Health and Medical Publishing Group, 2010-02)
    BACKGROUND: Women who carry germline mutations in the breast-ovarian cancer susceptibility genes, BRCA1 and BRCA2, are at very high risk of developing breast and / or ovarian cancer. Both genes are tumour suppressor genes ...
  • Candidate genetic modifiers for breast and ovarian cancer risk in BRCA1 and BRCA2 mutation carriers 
    Dorfling, Cecilia Maria; Peterlongo, Paolo; Chang-Claude, Jenny; Moysich, K.B.; Rudolph, A.; Schmutzler, Rita Katharina; Simard, Jacques; Soucy, Penny; Eeles, Rosalind A.; Easton, Douglas F.; Hamann, Ute; Wilkening, S.; Chen, B.; Rookus, Matti A.; Schmidt, Marjanka K.; Van Der Baan, F.H.; Spurdle, Amanda B.; Walker, L.C.; Lose, F.; Maia, A-T.; Montagna, Marco; Matricardi, L.; Lubinski, Jan; Jakubowska, Anna; Garcia, E.B.G.; Olopade, Olufunmilayo I.; Nussbaum, R.L.; Nathanson, Katherine L.; Domchek, Susan M.; Rebbeck, Timothy R.; Arun, Banu K.; Karlan, Beth Y.; Orsulic, Sandra; Lester, Jenny; Chung, Wendy K.; Miron, Alexander; Southey, Melissa C.; Goldgar, David E.; Buys, Saundra S.; Janavicius, Ramunas; Jansen van Rensburg, Elizabeth; Ding, Yuan Chun; Neuhausen, Susan L.; Hansen, Thomas V.O.; Gerdes, Anne-Marie; Ejlertsen, Bent; Jønson, L.; Osorio, Ana; Martínez-Bouzas, C.; Benitez, Javier; Conway, E.E.; Blazer, K.R.; Weitzel, Jeffrey N.; Manoukian, Siranoush; Peissel, Bernard; Zaffaroni, D.; Scuvera, G.; Barile, Monica; Ficarazzi, F.; Mariette, F.; Fortuzzi, S.; Viel, Alessandra; Gianotti, Giacomo; Papi, Laura; Martayan, A.; Tibiletti, Maria Grazia; Radice, Paolo; Fostira, Florentia; Garber, Judy; Donaldson, Alan; Brewer, Carole; Foo, Claire; Evans, D.G.R.; Frost, Debra; Eccles, Diana M.; Brady, A.; Cook, Jackie; Tischkowitz, Marc; Adlard, Julian; Barwell, J.; Walker, L.; Izatt, Louise; Side, Lucy E.; Kennedy, M.J.; Rogers, Mark T.; Porteous, Mary E.; Morrison, Patrick J.; Platte, Radka; Davidson, Richard S.; Hodgson, Shirley V.; Ellis, Steve; Cole, T.; Godwin, Andrew K.; Claes, Kathleen; Van Maerken, T.; Meindl, Alfons; Gehrig, Andrea; Sutter, Christian; Engel, Christoph; Niederacher, Dieter; Steinemann, Doris; Plendl, Hansjoerg; Kast, Karin; Rhiem, Kerstin; Ditsch, Nina; Arnold, Norbert; Varon-Mateeva, Raymonda; Wappenschmidt, Barbara; Wang-Gohrke, S.; Bressac-De Paillerets, B.; Buecher, B.; Delnatte, Capucine; Houdayer, Claude; Stoppa-Lyonnet, Dominique; Damiola, Francesca; Coupier, Isabelle; Barjhoux, Laure; Venat-Bouvet, Laurence; Golmard, Lisa; Boutry-Kryza, N.; Sinilnikova, Olga M.; Caron, O.; Pujol, Pascal; Mazoyer, Sylvie; Belotti, Muriel; Piedmonte, Marion; Friedlander, Michael L.; Rodriguez, Gustavo C.; Copeland, L.J.; De la Hoya, Miguel; Segura, P.P.; Nevanlinna, Heli; Aittomäki, K.; Van Os, Theo A.M.; Meijers-Heijboer, Hanne E.J.; Van der Hout, Annemarie H.; Vreeswijk, Maaike P.G.; Hoogerbrugge, N.; Ausems, Margreet G.E.M.; Van Doorn, H.C.; Collee, J.M.; Olah, Edith; Diez, Orland; Blanco, Ignacio; Lazaro, Conxi; Brunet, Joan; Feliubadalo, Lidia; Cybulski, C.; Gronwald, Jacek; Durda, Katarzyna; Jaworska-Bieniek, K.; Sukiennicki, G.; Arason, Adalgeir; Chiquette, J.; Teixeira, M.R.; Olswold, Curtis; Couch, Fergus J.; Lindor, Noralane M.; Wang, Xianshu; Szabo, Csilla I.; Offit, Kenneth; Corines, Marina J.; Jacobs, L. (Liesel); Robson, Mark E.; Zhang, L.; Joseph, V.; Berger, Andreas; Singer, Christian F.; Rappaport, Christine; Kaulich, D.G.; Pfeiler, Georg; Tea, Muy-Kheng M.; Phelan, Catherine M.; Greene, Mark H.; Mai, Phuong L.; Rennert, Gad; Mulligan, Anna Marie; Glendon, Gord; Tchatchou, S.; Andrulis, Irene L.; Toland, Amanda Ewart; Bojesen, Anders; Pedersen, Inge Sokilde; Thomassen, Mads; Jensen, Uffe Birk; Laitman, Yael; Rantala, J.; Von Wachenfeldt, A.; Ehrencrona, Hans; Askmalm, M.S.; Borg, Ake; Kuchenbaecker, Karoline B.; McGuffog, Lesley; Barrowdale, Daniel; Healey, Sue; Lee, Adam; Pharoah, Paul D.P.; Chenevix-Trench, Georgia; Antoniou, Antonis C.; Friedman, Eitan (American Association for Cancer Research, 2015-01)
    BACKGROUND: BRCA1 and BRCA2 mutation carriers are at substantially increased risk for developing breast and ovarian cancer. The incomplete penetrance coupled with the variable age at diagnosis in carriers of the same ...
  • Candidatus liberibacterafricanus in non-rutaceous alternate host species from South Africa 
    Janse van Rensburg, Rochelle (University of Pretoria, 2019)
    Non-rutaceous plant species, potentially hosts to ‘Candidatus Liberibacter africanus’ (Laf) sensu lato, were sampled throughout the Cape Floristic Region from the Fynbos and Succulent Karoo biomes in South Africa, and ...
  • ‘Candidatus Liberibacter’ in four indigenous Rutaceous species from South Africa 
    Viljoen, Ronel (University of Pretoria, 2013)
    Greening disease in South Africa is associated with a phloem-limited member of the Alphaproteobacteria known as ‘Candidatus Liberibacter africanus’ (Laf). Spread of this bacterium is assisted by the flight and feeding ...
  • Cannabidiol-mediated green synthesis, characterization, and cytotoxicity of metal nanoparticles in human keratinocyte cells 
    Josiah, Andrea Jess; Pillai, Sreejarani Kesavan; Cordier, Werner; Nell, Margo Judith; Twilley, Danielle; Lall, Namrita; Ray, Suprakas Sinha (American Chemical Society, 2021-10-21)
    This study investigated a unique one-pot microwave- assisted green synthesis method of gold (Au) and silver (Ag) nanoparticles (NPs) using cannabidiol (CBD) as a capping and reducing agent. Furthermore, Au and Ag NPs ...
  • Cannabis legalisation and testing for cannabis use in safety- and risk-sensitive environments 
    Laurens, Johannes B.; Carstens, Pieter Albert, 1960- (Health and Medical Publishing Group, 2020-10)
    The legalisation of cannabis by the High Court of South Africa, which was confirmed by the Constitutional Court, imposes challenges to occupational medical practitioners acting as medical review officers in compliance ...
  • A canonical EF-loop directs Ca2+-sensitivity in phospholipase C-η2 
    Popovics, Petra; Lu, Jin; Nadia Kamil L.; Morgan, Kevin; Millar, Robert P.; Schmid, Ralf; Blindauer, Claudia A.; Stewart, Alan J. (Wiley-Blackwell, 2014-03)
    Please read abstract in the article.
  • Canthonini (Scarabaeidae: Scarabaeinae) of Gondwana : comparison of male genitalia evolutionary trends and phylogeny 
    Medina Uribe, C.A. (Claudia Alejandra) (University of Pretoria, 2015)
    The current study is about the evolution and the morphology of dung beetles, subfamily Scarabaeinae. The study includes the systematics of the tribe Canthonini and an exhaustive analysis of the morphological variation ...
  • Capacitating local governments for the digital earth vision : lessons learnt from the role of municipalities in the South African spatial data infrastructure 
    Siebritz, Lindy-Anne; Desai, Ahmad; Coetzee, Serena Martha; Cooper, Antony Kyle (Taylor and Francis, 2021)
    The Digital Earth vision foresees the availability and accessibility of geospatial information to achieve the goals of sustainable development, economic growth and social well-being. In the case of urban areas, up-to-date ...
  • Capacity building efforts for rabies diagnosis in resource-limited countries in Sub-Saharan Africa : a case report of the Central Veterinary Laboratory in Benin (Parakou) 
    Djegui, Fidelia; Gourlaouen, Morgane; Coetzer, Andre; Adjin, Rachidatou; Tohozin, Rogatien; Leopardi, Stefania; Mauti, Stephanie; Akpo, Yao; Gnanvi, Corneille; Nel, Louis Hendrik; De Benedictis, Paola (Frontiers Media, 2022-01-18)
    Rabies has been listed as a priority zoonotic disease in many African countries and the countdown to reach the goal of eliminating dog-mediated human rabies deaths by 2030 means that disease controlmeasures need to be ...
  • Capacity building in food composition for Africa 
    Schonfeldt, H.C. (Hettie Carina); Hall, Nicolette Gibson (Elsevier, 2013-03)
    Capacity building in food and nutrition involves more than formal training and individual development. Such a process is long term and continues, requiring lasting mentorship, coaching and leadership development, including ...
  • Capacity building in taxonomy and systematics 
    Smith, G.F. (Gideon Francois), 1959-; Figueiredo, Estrela (International Association for Plant Taxonomy, 2009-08)
    Needs-driven capacity building is required as a matter of urgency to overcome the present lack of taxonomists and systematists who are skilled in natural history and collections. This must necessarily include the training ...
  • Cape fur seals (Arctocephalus pusillus pusillus) adjust traversing behaviour with lunar conditions in the high white shark (Carcharodon carcharias) density waters of Mossel Bay, South Africa 
    Morse, P.; Mole, Michael Austin; Bester, Marthan Nieuwoudt; Johnson, R.; Scacco, U.; Gennari, E. (Inter Research, 2019-07)
    White sharks Carcharodon carcharias are highly visual predators, leading to the hypothesis that the predation risk for foraging Cape fur seals Arctocephalus pusillus pusillus might differ with ambient light conditions. ...
  • Cape mountain zebra in the Baviaanskloof Nature Reserve, South Africa : resource use reveals limitations to zebra performance in a dystrophic mountainous ecosystem 
    Weel, Silvia; Watson, Laurence H.; Wheelo, Joana; Venter, Jan A.; Reeves, Brain (Wiley`, 2015-12)
    Resource use of Cape mountain zebra was studied in the Baviaanskloof Nature Reserve (BNR) over concerns of the poor performance in population growth. We assessed the seasonal diet, habitat suitability and forage quality ...
  • Capital budgeting practices used by selected listed South African firms 
    Hall, J.H. (John Henry); Millard, Sollie M. (Juta, 2010-03)
    This article investigates the application of capital budgeting techniques and the incorporation of risk into the capital budgeting process among a sample of South African industrial firms listed on the JSE Securities ...