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Now showing items 4738-4757 of 7883
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Nitric oxide affects salt-induced changes in free amino acid levels in maize
(Elsevier, 2013)It was assumed that salt-induced redox changes affect amino acid metabolism in maize (Zea mays L.), and this influence may be modified by NO. The applied NaCl treatment reduced the fresh weight of shoots and roots. This ... -
Nitrogen fertilization increases the growth and nutritional quality of the forage legume, Calobota sericea – A preliminary investigation
(Elsevier, 2023)Calobota sericea is being evaluated as a forage for drought stressed areas. The nutritional quality of C. sericea from native populations are poor, and this is believed to be due to poor soil fertility. Therefore, a ... -
Nitrogen fertilization increases the growth and nutritional quality of the forage legume, calobota sericea – A preliminary investigation
(Heliyon, 2023)Calobota sericea is being evaluated as a forage for drought stressed areas. The nutritional quality of C. sericea from native populations are poor, and this is believed to be due to poor soil fertility. Therefore, a ... -
Nitrogen plasma treatment of zno and tio2 nanowire arrays for polymer photovoltaic applicationS
(ScienceDirect, 2019)This work reports on a simple, yet unique approach to improving the opto-electronic properties of vertically-aligned arrays of rutile TiO2 and Wurzite ZnO nanowires by means of controlled nitrogen doping during exposure ... -
Nitrogen-doped carbon coated ZeO2 as a support to Pt nanoparticles in the oxygen reduction reaction
(Elsevier, 2013)A new nitrogen-doped carbon (CNx) support for Pt electrocatalysts was prepared by carbonizing polypyrrole on the surface of ZrO2 (ZrO2@CNx) at high temperature. Well-dispersed Pt nanoparticles were easily formed on the ... -
No association between cumulative traumatic experiences and sex in risk for posttraumatic stress disorder among human immunodeficiency virus-positive adults
(Lippincott, Williams & Wilkins, 2013)This study examined the association between the type and number of traumatic experiences and the conditional risk for posttraumatic stress disorder (PTSD), stratified by sex, in human immunodeficiency virus (HIV). We ... -
No one knows what will happen after these five years': narratives of ART, access and agency in Nigeria
(Sage Publications, 2013)Rural Nigerians pursue a range of strategies to maximize current and future access to HIV treatment in the context of securing livelihoods and minimizing the social and economic risks of stigma. This study reports on ... -
No pandemic preparedness and research without gender equality
(NLM (Medline), 2023)The covid-19 emergency may have been declared over, but its effects are not. Pre-existing inequities worsened during the pandemic, and the crisis has hardened societal fault lines. Sex and gender mark many of these. ... -
Nodulation, leaf harvesting intensity and interval of the black-eyed bean (BEB) (Vigna unguiculata L. Walpers) cowpea type at the University of Zimbabwe, Harare, Zimbabwe
(Academic Journals, 2012)A glasshouse pot experiment was carried out at the University of Zimbabwe, Crop Science Department in 2006 to 2007 rainy season to determine the effect of leaf harvesting intensity and interval on cowpea biological nitrogen ... -
NOEMA redshift measurements of bright Herschel galaxies
(EDP Sciences, 2020)Using the IRAM NOrthern Extended Millimeter Array (NOEMA), we conducted a program to measure redshifts for 13 bright galaxies detected in the Herschel Astrophysical Large Area Survey with S500 μm ≥ 80 mJy. We report reliable ... -
Non-alignment in the current world order. The impact of the rise of China
(Institute for Strategic Studies at the University of Pretoria, 2008)The relevance of the Non-Aligned Movement has been in question since the end of Cold War bipolarity. In the post-Cold War order, whether interpreted as cosmopolitan, unipolar, multipolar or globalised in nature, there are ... -
Non-booking for antenatal care and risks for vertical HIV transmission among women in Chitungwiza, Zimbabwe: a cross-sectional study
(BMC Pregnancy and Childbirth, 2022)Background: The success of prevention of mother to child transmission of HIV (PMTCT) programs dependents on pregnant women accessing antenatal care (ANC) services. Failure to access ANC throughout the course of pregnancy ... -
Non-cognitive support for postgraduate studies: A systematic review
(Frontiers Media, 2022)Retention of postgraduate students is a complex problem at higher education institutions. To address this concern, various forms of academic support are offered by higher education institutions to nurture and develop the ... -
Non-discrimination in socio-economic rights : CESCR general comment
(ESR Review : Economic and Social Rights in South Africa, 2009)In May 2009, the United Nations (UN) Committee on Economic, Social and Cultural Rights (CESCR) adopted General Comment 20 (UN doc. E/C.12/GC/20[2009]) on non-discrimination in economic, social and cultural (ESC) rights. -
Non-Gaussianity constraints using future radio continuum surveys and the multitracer technique
(Oxford University Press, 2019)Tighter constraints on measurements of primordial non-Gaussianity (PNG) will allow the differentiation of inflationary scenarios. The cosmic microwave background bispectrum – the standard method of measuring the local ... -
Non-governmental organisations and the South African state: present and future relations.
(Community Development Journal, 1993)The article explores the relationship between the state and NGOs in order to address the question: Is there a place for non-governmental, community based organisations in a democratic South African state? Section One ... -
Non-implementation of court orders in socioeconomic rights litigation in South Africa Is the cancer here to stay?
(2008)Over 12 years have elapsed since the South African Constitution was adopted, and the jurisprudence on socio-economic rights has increased considerably. Yet a majority of the population remain entrapped in poverty. -
Non-linear damping of superimposed primordial oscillations on the matter power spectrum in galaxy surveys
(IOP Publishing Ltd, 2020)Galaxy surveys are an important probe for superimposed oscillations on the primordial power spectrum of curvature perturbations, which are predicted in several theoretical models of inflation and its alternatives. In order ... -
Non-racialism and the African National Congress: views from the branch
(Taylor & Francis group, 2014)South Africa’s ruling party is well known as an organisation that supports the ideal of non-racialism. However, the extent to which the African National Congress (ANC) has defined and instrumentalised the concept of ... -
Non-specificity of Staphylococcus generic primers
(Society for General Microbiology, 2003)Our results allow us to conclude that there appears to be significant conservation between the tuf genes of Planococcus, Planomicrobium and Staphylococcus spp., and that although the primer set TstaG422/TStag765 has ...