Browsing by Title
Now showing items 635-654 of 7879
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Biodegradable ceramics consisting of hydroxyapatite for orthopaedic implants
(MDPI, 2017)This study aims to analyze hydroxyapatite (HAP) coatings enriched with Mg and Ti prepared by a magnetron sputtering technique on Ti6Al4V substrate. For preparation of the coatings, three magnetron targets (HAP, MgO and ... -
Biodegradation of high-concentration isopropanol by a solvent-tolerant thermophile, Bacillus pallidus
(Springer Verlag, 2002)The aerobic biodegradation of high-concentration, to 24 g l –1 , 2-propanol (IPA) by a thermophilic isolate ST3, identified as Bacillus pallidus , was successfully carried out for the first time. This solvent-tolerant B. ... -
Biodiversity: so much more than legs and leaves
(AOSIS OpenJournals, 2013)Microorganisms inhabit virtually every possible niche on Earth, including those at the outer envelope of survival. However, the focus of most conservation authorities and ecologists is the ‘legs and leaves’ side of biology ... -
The biofuels boom and bust in Africa: A timely lesson for the New Alliance initiative
(Institute for Poverty, Land and Agrarian Studies, University of the Western Cape, 2015)Policies promoting biofuels development through financial incentives in Europe and in the United States of America are major drivers of the ‘land rush’ in many African countries. Yet, we know that most of the first projects ... -
The biofuels boom and bust in Africa: a timely lesson for the New Alliance initiative
(Institute for Poverty Land and Agrarian Studies (PLAAS), 2015)Policies promoting biofuels development through financial incentives in Europe and in the United States of America are major drivers of the ‘land rush’ in many African countries. Yet, we know that most of the first projects ... -
Biofuels investments in Tanzania: Policy options for sustainable business models
(2013-03-14) Biofuels: globally advocated as an environmentally friendly alternative source for energy US and Brazil: global producers of biodiesel and ethanol Southern African Nations: the “Middle East” of biofuels -Chief ... -
Biological synthesis of gold and silver nanoparticles using leaf extracts of Crassocephalum rubens and their comparative in vitro antioxidant activities
(Elsevier, 2020)The use of plant and plant products in the synthesis of silver nanoparticles (AgNPs) and gold nanoparticles (AuNPs) is made possible because of the natural inherent phytochemicals responsible for the reduction of respective ... -
Biomass Energy Dependence in South Africa: Are the Western Cape Province households descending the energy ladder after improvement in electricity access?
(Elsevier, 2020)South Africa was considered to have attained universal access to modern energy from 1994 to 2012. This meant that the number of households that moved away from the use of dirty energy to ... -
Biomass partitioning in an endemic southern African salt marsh species Salicornia tegetaria (Chenopodiaceae)
(Taylor and Francis Group, 2020)The below ground biomass of salt marsh species accounts for more than half of the total plant biomass in salt marsh systems, yet no biomass data exist for salt marsh species in South Africa. ... -
Biomass-derived activated carbon as high-performance non-precious electrocatalyst for oxygen reduction
(Royal Society of Chemistry, 2013)A new type of Fe and N doped carbon material is synthesized by pyrolyzing ferric chloride doped egg white (EW) and the proposed synthetic route is easy, green, and low-cost. In addition, the as-prepared sample exhibits ... -
Biomaterials and designer functional applications in oral cavity
(Nova Science Publishers, 2016-05-10)Dental biomaterials and natural products represent two growing research fields, revealing that plant¬derived compounds may play a role not only as nutraceuticals in affecting oral health but also in improving physicochemical ... -
Biomedical Relevance of Novel Anticancer Peptides in the Sensitive Treatment of Cancer
(MDPI, 2021)The global increase in cancer mortality and economic losses necessitates the cautious quest for therapeutic agents with compensatory advantages over conventional therapies. Anticancer peptides (ACPs) are a subset of host ... -
Bioprospecting of Helichrysum species: Chemical profile, phytochemical properties, and antifungal efficacy against botrytis cinerea
(MDPI, 2023)Variation in plant species and extraction solvents play a crucial role in the recovery of their bioactive compounds and antifungal efficacy. Thus, in this study, a comparative investigation was carried out using extraction ... -
Biosynthesis of silver nanoparticles using Bersama engleriana fruits extracts and their potential inhibitory effect on resistant bacteria
(MDPI, 2022)The absence of novel, safe, and effective bactericide is an urgent concern worldwide and remains a challenge in scientific communities. The unique proprieties of silver nanoparticles (SNPs) synthesized from plant extracts ... -
Biosynthesis of silver nanoparticles using bitter leave (Veronica amygdalina) for antibacterial activities
(ScienceDirect, 2019)A green and facile biosynthesis of silver nanoparticles (SNPs) using dry Bitter leaves (DBL) (Vernonia amygdalina) aqueous extract as a capping and reducing agent was demonstrated in this work. The effect of the precursor's ... -
Biosynthesis, Characterization, and Biological Activities of Procyanidin Capped Silver Nanoparticles
(Multidisciplinary Digital Publishing Institute, 2020-09-19)In this study, procyanidin dimers and Leucosidea sericea total extract (LSTE) were employed in the synthesis of silver nanoparticles (AgNPs) and characterized by ultraviolet-visible (UV-Visible) spectroscopy, high-resolution ... -
Birds and bees, the ‘r’ word and zuma’s p*nis: censorship avoidance strategies in a south african online newspaper’s comments section
(Springerlink, 2019)Although linguistic practices in online platforms continue to receive fair scholarly attention, limited research has been conducted on online censorship avoidance strategies in South Africa about online newspapers. We use ... -
Birth, stillbirth and death registration data completeness, quality and utility in population-based surveys: EN-INDEPTH study
(BioMed Central Ltd, 2021)Birth registration is a child’s first right. Registration of live births, stillbirths and deaths is foundational for national planning. Completeness of birth registration for live births in low- and middle-income countries ... -
Bis(ferrocenylimine)palladium(II) and platinum(II) complexes: synthesis, molecular structures and evaluation as antitumor agents
(Elsevier, 2012)Compounds (ferrocenyl-2-furylmethyl)imine (L1), (ferrocenyl-2-thiophenemethyl)imine (L2) and (ferrocenyl-2-thiopheneethyl)imine (L3) were synthesized by condensation reactions and obtained in very good yields. Reactions ... -
Bitcoin regulation? Imperfect knowledge of identities and the money laundering risk: A West African perspective
(University of the Western Cape, 2018)Arguments for regulating Bitcoin are built mainly on the technologically disruptive nature of the currency and its susceptibility to facilitating financial crimes on a scale larger than financial institutions. This paper ...
