https://commons.ufh.ac.za/vital/access/manager/Index en-us 5 Photodynamic therapy using morpholine substituted porphyrins in the presence of cancer specific molecules linked to graphene quantum dots https://commons.ufh.ac.za/vital/access/manager/Repository/vital:71947 Thu 04 Apr 2024 20:36:15 SAST ]]> Factors influencing the number of non-timber forest product species used at the individual, household and village levels in Vhembe, Limpopo Province, South Africa https://commons.ufh.ac.za/vital/access/manager/Repository/vital:71946 Thu 04 Apr 2024 20:35:40 SAST ]]> Crop fields abandonment: assessing the dynamics of degradation in relation to leverage points for sustainable land management in the Macubeni catchment, South Africa https://commons.ufh.ac.za/vital/access/manager/Repository/vital:71945 Thu 04 Apr 2024 20:28:09 SAST ]]> Pharmaco-chemical investigation of Erythrina caffra: extracts, isolated compounds and their biological activities https://commons.ufh.ac.za/vital/access/manager/Repository/vital:71944 Thu 04 Apr 2024 20:13:57 SAST ]]> Mineral paragenesis of olmiite/poldevaartite and rhodochrosite/shigaite occurrences in the Kalahari Manganese Field, and their relation to the formation of high-grade manganese ore of Nchwaning II mine, Black Rock, South Africa https://commons.ufh.ac.za/vital/access/manager/Repository/vital:71943 Thu 04 Apr 2024 20:04:46 SAST ]]> The development of a low-cost real- time bacterial plate culture monitoring system https://commons.ufh.ac.za/vital/access/manager/Repository/vital:71942 Thu 04 Apr 2024 20:00:08 SAST ]]> Selection of DNA aptamers against Cancer-Targeting Murine Antibodies https://commons.ufh.ac.za/vital/access/manager/Repository/vital:71941 Thu 04 Apr 2024 19:53:03 SAST ]]> Expression, partial characterisation and utilization of a GH11 xylanase (Xyn2A) from Trichoderma viride as an additive in monogastric animal feeds https://commons.ufh.ac.za/vital/access/manager/Repository/vital:71940 Thu 04 Apr 2024 19:46:33 SAST ]]> Biochemical and genetic analysis of the Mycobacterium smegmatis CnoX Chaperedoxin https://commons.ufh.ac.za/vital/access/manager/Repository/vital:71939 Thu 04 Apr 2024 19:46:24 SAST ]]> Enhancing the use of large-scale assessment data in South Africa: Multidimensional Item Response Theory https://commons.ufh.ac.za/vital/access/manager/Repository/vital:71938 Thu 04 Apr 2024 19:37:42 SAST ]]> Semantic segmentation of astronomical radio images: a computer vision approach https://commons.ufh.ac.za/vital/access/manager/Repository/vital:71937 Thu 04 Apr 2024 19:33:11 SAST ]]> MeerKAT observations of three high-redshift galaxy clusters https://commons.ufh.ac.za/vital/access/manager/Repository/vital:71936 6×1014 M⊙ at intermediate redshifts (0.3 < z < 0.4), providing support to their connection between mergers, which provide the necessary energy to re-accelerate particles via turbulence. Probing the redshift evolution of radio halos is an important test of the turbulent re-acceleration scenario, as fewer halos are expected at high redshift, given the same mass interval. In this thesis, we present MeerKAT observations at 1.28 GHz of three high-redshift (PSZ2G254.08- 58.45, PSZ2G255.60-46.18 and PSZ2G277.76-51.74, in the 0.42 ≲ z ≲ 0.46 range) clusters, with masses M500 ≳ 6.2 × 1014 M⊙, selected for their disturbed dynamical state – inferred from existing X-ray observations. Our observations reached rms noise values between 20 and 23.5 μJy beam−1, with ∼ 4′′ angular resolution. No evidence of diffuse emission is found at ii full resolution. Low-resolution (∼ 30′′) images achieved rms noise levels of 30-50 μJy beam−1, amongst the deepest observations of high-redshift targets. One radio halo was detected in the least massive cluster PSZ2G254.08-58.45 extending over ∼ 500 kpc, with a 1.20 } 0.08 mJy integrated flux density. We placed a ∼1 mJy upper limit at 95% confidence level on the radio halo flux density for the other two targets. The radio-halo detection is consistent with the recent P1.4 GHz − M500 correlation from Cuciti et al. (2021b), while the upper limit on PSZ2G255.60-46.18 is consistent with being on the correlation. On the other hand, the upper limit on PSZ2G277.76-51.74 places the radio halo well below the correlation. Recently a 1.5 GHz survey (Giovannini et al., 2020) detected a slightly higher fraction of radio halos in clusters in the same redshift range, with power and size typically higher than what we found in our observations. Both observations are, however, not inconsistent with each other. Our results, although with limited statistics, do not disfavour the current scenario of radiohalo formation based on the turbulent re-acceleration model.]]> Thu 04 Apr 2024 19:25:15 SAST ]]> Implications of changing land use and introducing extralimital giraffe on vegetation in the subtropical thicket, South Africa https://commons.ufh.ac.za/vital/access/manager/Repository/vital:71935 Thu 04 Apr 2024 19:11:09 SAST ]]> Quantifying feed intake and feeding intensity using two experimental conditions and the effect of different feeding strategies on the production parameters of farmed South African abalone, haliotis midae https://commons.ufh.ac.za/vital/access/manager/Repository/vital:71932 Thu 04 Apr 2024 19:04:28 SAST ]]> Source of introduced populations of Hemidactylus mabouia (Moreau de Jonnès, 1818) into the Eastern Cape Province and the potential spread to other South African regions https://commons.ufh.ac.za/vital/access/manager/Repository/vital:71933 Thu 04 Apr 2024 19:04:14 SAST ]]> Coastal movements and estuarine use of sub-adult and adult leervis, lichia amia: results from long-term acoustic tracking https://commons.ufh.ac.za/vital/access/manager/Repository/vital:71930 Thu 04 Apr 2024 18:57:36 SAST ]]> Distribution and conservation status assessment of the freshwater fishes in the Krom River system in the Eastern Cape Province, South Africa https://commons.ufh.ac.za/vital/access/manager/Repository/vital:71929 Thu 04 Apr 2024 18:50:26 SAST ]]> Biological longitudinal aspects of the Kabompo River, a significant tributary of the upper Zambezi sub-catchment, North-west Province, Zambia https://commons.ufh.ac.za/vital/access/manager/Repository/vital:71928 Thu 04 Apr 2024 17:34:04 SAST ]]> A Comparison of Mitochondrial Heat Shock Protein 70 and Hsp70 Escort Protein 1 Orthologues from Trypanosoma brucei and Homo sapiens https://commons.ufh.ac.za/vital/access/manager/Repository/vital:71927 Thu 04 Apr 2024 17:12:57 SAST ]]> The influence of immuno-contraception on the ecology of African savanna elephants (Loxodonta africana) in a small game reserve in the Eastern Cape, South Africa https://commons.ufh.ac.za/vital/access/manager/Repository/vital:71926 Thu 04 Apr 2024 16:59:13 SAST ]]> Microbial and extracellular polymeric substance dynamics in arid–zone temporary pan ecosystems https://commons.ufh.ac.za/vital/access/manager/Repository/vital:71925 Thu 04 Apr 2024 16:51:48 SAST ]]> The nature of Visual Representations of multiplication and division exercises in nine Grades 1 to 3 South African textbooks https://commons.ufh.ac.za/vital/access/manager/Repository/vital:71959 Sat 06 Apr 2024 14:17:40 SAST ]]> Prosecution of forced marriage by international courts and tribunals in light of the principle of legality https://commons.ufh.ac.za/vital/access/manager/Repository/vital:71772 Sat 02 Mar 2024 08:27:50 SAST ]]> The proprietary consequences of foreign marriages for the purposes of estate planning and succession in South Africa https://commons.ufh.ac.za/vital/access/manager/Repository/vital:71773 Sat 02 Mar 2024 08:27:37 SAST ]]> Optimization of an intranasal levodopa nanocrystalline formulation for delivery to the brain https://commons.ufh.ac.za/vital/access/manager/Repository/vital:71771 Sat 02 Mar 2024 08:09:23 SAST ]]> An in vitro investigation of novel quinolone derivatives on selected pharmacological targets for diabetes mellitus and associated complications https://commons.ufh.ac.za/vital/access/manager/Repository/vital:70632 Mon 13 May 2024 15:48:08 SAST ]]>