http://vital.seals.ac.za:8080/vital/access/manager/Index ${session.getAttribute("locale")} 5 http://vital.seals.ac.za:8080/vital/access/manager/Repository/vital:884 Wed 12 May 2021 23:47:47 SAST ]]> http://vital.seals.ac.za:8080/vital/access/manager/Repository/vital:1484 Wed 12 May 2021 22:50:04 SAST ]]> http://vital.seals.ac.za:8080/vital/access/manager/Repository/vital:4009 50%). Thus, it can be concluded that the cavities of apoferitin and GroEL acted as nanobiofactories for the synthesis and confinement of the size and shape of nanoparticles. Furthermore, the interior of these proteins provided a shielding effect for these nanoparticles and thus reduced/prevented their possible neurotoxic effect and confirmed safety in their method of production and application. The findings from this study would prove beneficial in the application of these nanoparticles as a potential drug/drug delivery vehicle for the prevention, treatment/management of diseases associated with these enzymes/proteins.]]> Wed 12 May 2021 22:22:09 SAST ]]> http://vital.seals.ac.za:8080/vital/access/manager/Repository/vital:1609 Wed 12 May 2021 21:05:25 SAST ]]> http://vital.seals.ac.za:8080/vital/access/manager/Repository/vital:1657 Wed 12 May 2021 21:03:23 SAST ]]> http://vital.seals.ac.za:8080/vital/access/manager/Repository/vital:774 Wed 12 May 2021 20:57:54 SAST ]]> http://vital.seals.ac.za:8080/vital/access/manager/Repository/vital:5249 Wed 12 May 2021 20:52:43 SAST ]]> http://vital.seals.ac.za:8080/vital/access/manager/Repository/vital:4670 Wed 12 May 2021 20:21:05 SAST ]]> http://vital.seals.ac.za:8080/vital/access/manager/Repository/vital:1889 Wed 12 May 2021 20:19:54 SAST ]]> http://vital.seals.ac.za:8080/vital/access/manager/Repository/vital:5534 Wed 12 May 2021 20:15:43 SAST ]]> http://vital.seals.ac.za:8080/vital/access/manager/Repository/vital:5986 Wed 12 May 2021 20:07:25 SAST ]]> http://vital.seals.ac.za:8080/vital/access/manager/Repository/vital:1605 Wed 12 May 2021 19:59:21 SAST ]]> http://vital.seals.ac.za:8080/vital/access/manager/Repository/vital:1622 Wed 12 May 2021 19:41:02 SAST ]]> http://vital.seals.ac.za:8080/vital/access/manager/Repository/vital:4825 Wed 12 May 2021 19:22:58 SAST ]]> http://vital.seals.ac.za:8080/vital/access/manager/Repository/vital:784 Wed 12 May 2021 19:18:23 SAST ]]> http://vital.seals.ac.za:8080/vital/access/manager/Repository/vital:4607 Wed 12 May 2021 19:09:32 SAST ]]> http://vital.seals.ac.za:8080/vital/access/manager/Repository/vital:788 Wed 12 May 2021 19:08:56 SAST ]]> http://vital.seals.ac.za:8080/vital/access/manager/Repository/vital:4654 Wed 12 May 2021 19:01:39 SAST ]]> http://vital.seals.ac.za:8080/vital/access/manager/Repository/vital:577 Wed 12 May 2021 18:57:58 SAST ]]> http://vital.seals.ac.za:8080/vital/access/manager/Repository/vital:4752 Wed 12 May 2021 18:49:36 SAST ]]> http://vital.seals.ac.za:8080/vital/access/manager/Repository/vital:777 Wed 12 May 2021 18:39:03 SAST ]]> http://vital.seals.ac.za:8080/vital/access/manager/Repository/vital:1007 Wed 12 May 2021 18:31:06 SAST ]]> http://vital.seals.ac.za:8080/vital/access/manager/Repository/vital:1488 Wed 12 May 2021 18:17:34 SAST ]]> http://vital.seals.ac.za:8080/vital/access/manager/Repository/vital:4656 Wed 12 May 2021 18:14:54 SAST ]]> http://vital.seals.ac.za:8080/vital/access/manager/Repository/vital:1913 Wed 12 May 2021 17:38:01 SAST ]]> http://vital.seals.ac.za:8080/vital/access/manager/Repository/vital:1961 Wed 12 May 2021 17:36:20 SAST ]]> http://vital.seals.ac.za:8080/vital/access/manager/Repository/vital:1596 Wed 12 May 2021 17:33:33 SAST ]]> http://vital.seals.ac.za:8080/vital/access/manager/Repository/vital:3591 Wed 12 May 2021 17:32:26 SAST ]]> http://vital.seals.ac.za:8080/vital/access/manager/Repository/vital:1646 Wed 12 May 2021 17:27:17 SAST ]]> http://vital.seals.ac.za:8080/vital/access/manager/Repository/vital:4586 Wed 12 May 2021 17:23:55 SAST ]]> http://vital.seals.ac.za:8080/vital/access/manager/Repository/vital:5454 Wed 12 May 2021 17:16:47 SAST ]]> http://vital.seals.ac.za:8080/vital/access/manager/Repository/vital:1516 Wed 12 May 2021 17:16:32 SAST ]]> http://vital.seals.ac.za:8080/vital/access/manager/Repository/vital:1536 Wed 12 May 2021 17:16:23 SAST ]]> http://vital.seals.ac.za:8080/vital/access/manager/Repository/vital:2784 Wed 12 May 2021 17:15:53 SAST ]]> http://vital.seals.ac.za:8080/vital/access/manager/Repository/vital:4769 Wed 12 May 2021 17:15:16 SAST ]]> http://vital.seals.ac.za:8080/vital/access/manager/Repository/vital:888 Wed 12 May 2021 17:09:46 SAST ]]> http://vital.seals.ac.za:8080/vital/access/manager/Repository/vital:4665 Wed 12 May 2021 17:05:33 SAST ]]> http://vital.seals.ac.za:8080/vital/access/manager/Repository/vital:1147 Wed 12 May 2021 16:53:10 SAST ]]> http://vital.seals.ac.za:8080/vital/access/manager/Repository/vital:1456 Wed 12 May 2021 16:46:45 SAST ]]> http://vital.seals.ac.za:8080/vital/access/manager/Repository/vital:1048 Wed 12 May 2021 16:28:27 SAST ]]> http://vital.seals.ac.za:8080/vital/access/manager/Repository/vital:1006 Wed 12 May 2021 16:27:00 SAST ]]> http://vital.seals.ac.za:8080/vital/access/manager/Repository/vital:5644 Wed 12 May 2021 16:23:44 SAST ]]> http://vital.seals.ac.za:8080/vital/access/manager/Repository/vital:4410 Wed 12 May 2021 16:23:34 SAST ]]> http://vital.seals.ac.za:8080/vital/access/manager/Repository/vital:4320 99%) oxidation was achieved for an extended period. In addition, leaching of vanadium was mitigated by modification of the attached ligand or polymer material.]]> Wed 12 May 2021 16:19:47 SAST ]]> http://vital.seals.ac.za:8080/vital/access/manager/Repository/vital:1602 Wed 12 May 2021 16:19:26 SAST ]]> http://vital.seals.ac.za:8080/vital/access/manager/Repository/vital:5229 0.05) amount of variability (63%) was explained by a predictive model incorporating these variables as investigations were constrained by small sample sizes and aggregated catch information. Scientific survey data provided multi-species information and highlighted the high proportion of non-native fish species in Eastern Cape impoundments. Gillnet catches were influenced primarily by species composition and were less subject to fluctuations induced by environmental factors. Overall standardised gillnet CPUE was influenced by surface area, conductivity and age of impoundment. Although the model fit was not significant at the p<0.05 level, 23% of the variability in the data was explained by a predictive model incorporating these variables. The presence of species which could be effectively targeted by gillnets was hypothesised to represent the most important factor influencing catch rates. Investigation of factors influencing CPUE in impoundments dominated by Clarias gariepinus and native cyprinids indicated that warmer, younger impoundments and smaller, colder impoundments produced higher catches of C. gariepinus and native cyprinids respectively. A predictive model for C. gariepinus abundance explained a significant amount of variability (77%) in CPUE although the small sample size of impoundments suggests that predictions from this model may not be robust. CPUE of native cyprinids was influenced primarily by the presence of Labeo umbratus and constrained by small sample size of impoundments and the model did not adequately explain the variability in the data (r² = 0.31, p>0.05). These results indicate that angling catch- and scientific survey data can be useful in providing predictions of fish abundance that are biologically realistic. However, more data over a greater spatial scale would allow for more robust predictions of catch rates. This could be achieved through increased monitoring of existing resource users, the creation of a centralised database for catch records from angling competitions, and increased scientific surveys of South African impoundments conducted by a dedicated governmental function.]]> Wed 12 May 2021 16:19:14 SAST ]]> http://vital.seals.ac.za:8080/vital/access/manager/Repository/vital:780 Wed 12 May 2021 16:17:41 SAST ]]> http://vital.seals.ac.za:8080/vital/access/manager/Repository/vital:3778 Wed 12 May 2021 16:16:36 SAST ]]> http://vital.seals.ac.za:8080/vital/access/manager/Repository/vital:775 Wed 12 May 2021 16:14:12 SAST ]]> http://vital.seals.ac.za:8080/vital/access/manager/Repository/vital:1631 Wed 12 May 2021 16:05:22 SAST ]]> http://vital.seals.ac.za:8080/vital/access/manager/Repository/vital:41186 Wed 12 May 2021 14:40:49 SAST ]]> http://vital.seals.ac.za:8080/vital/access/manager/Repository/vital:1617 Thu 27 Jul 2023 12:44:46 SAST ]]> http://vital.seals.ac.za:8080/vital/access/manager/Repository/vital:6042 Thu 15 Jul 2021 20:34:36 SAST ]]> http://vital.seals.ac.za:8080/vital/access/manager/Repository/vital:2839 Thu 13 May 2021 16:32:51 SAST ]]> http://vital.seals.ac.za:8080/vital/access/manager/Repository/vital:1714 Thu 13 May 2021 10:03:21 SAST ]]> http://vital.seals.ac.za:8080/vital/access/manager/Repository/vital:3308 Thu 13 May 2021 09:48:29 SAST ]]> http://vital.seals.ac.za:8080/vital/access/manager/Repository/vital:5510 Thu 13 May 2021 07:44:17 SAST ]]> http://vital.seals.ac.za:8080/vital/access/manager/Repository/vital:783 Thu 13 May 2021 07:18:10 SAST ]]> http://vital.seals.ac.za:8080/vital/access/manager/Repository/vital:5767 Thu 13 May 2021 07:13:47 SAST ]]> http://vital.seals.ac.za:8080/vital/access/manager/Repository/vital:3867 Thu 13 May 2021 07:08:36 SAST ]]> http://vital.seals.ac.za:8080/vital/access/manager/Repository/vital:1180 Thu 13 May 2021 07:03:59 SAST ]]> http://vital.seals.ac.za:8080/vital/access/manager/Repository/vital:885 Thu 13 May 2021 06:58:08 SAST ]]> http://vital.seals.ac.za:8080/vital/access/manager/Repository/vital:5227 Thu 13 May 2021 06:47:50 SAST ]]> http://vital.seals.ac.za:8080/vital/access/manager/Repository/vital:5580 Thu 13 May 2021 06:37:27 SAST ]]> http://vital.seals.ac.za:8080/vital/access/manager/Repository/vital:3444 Thu 13 May 2021 06:33:09 SAST ]]> http://vital.seals.ac.za:8080/vital/access/manager/Repository/vital:1618 Thu 13 May 2021 06:14:11 SAST ]]> http://vital.seals.ac.za:8080/vital/access/manager/Repository/vital:6041 Thu 13 May 2021 06:03:25 SAST ]]> http://vital.seals.ac.za:8080/vital/access/manager/Repository/vital:5573 Thu 13 May 2021 05:44:28 SAST ]]> http://vital.seals.ac.za:8080/vital/access/manager/Repository/vital:3321 Thu 13 May 2021 05:18:26 SAST ]]> http://vital.seals.ac.za:8080/vital/access/manager/Repository/vital:3052 Thu 13 May 2021 05:17:05 SAST ]]> http://vital.seals.ac.za:8080/vital/access/manager/Repository/vital:1629 Thu 13 May 2021 05:12:33 SAST ]]> http://vital.seals.ac.za:8080/vital/access/manager/Repository/vital:5372 Thu 13 May 2021 05:05:59 SAST ]]> http://vital.seals.ac.za:8080/vital/access/manager/Repository/vital:5464 Thu 13 May 2021 05:04:36 SAST ]]> http://vital.seals.ac.za:8080/vital/access/manager/Repository/vital:1542 Thu 13 May 2021 04:43:44 SAST ]]> http://vital.seals.ac.za:8080/vital/access/manager/Repository/vital:5916 2.5 % TFA) and exhibited intermediate omnivory (intermediate levels of 20:1n-11 and 20:1n-9, intermediate 18:1n-9/18:1n-7 ratios at ~1.3, less enriched δ¹⁵N values at ~7.9 ‰; zooplankton contribution of 10-15 % of the diet). The more depleted nitrogen signatures in the mussels relative to the barnacles and polychaetes possibly illustrated a stronger preference for autotrophic food. Polychaetes mainly consumed plant food sources (i.e. microalgae, macroalgae and detritus; high levels of i-18:0, 18:1n-9, 18:4n-3 and 20:5n-3) and displayed little omnivory (low levels of 20:1n-11 and 20:1n-9, low 18:1n-9/18:1n-7 ratios at ~0.4, intermediate δ¹⁵N values at ~9.1 ‰; zooplankton contribution of <10 % of the diet). The barnacles, mussels and polychaetes are all suspension-feeders, originally presumed to consume the same food sources. The variations observed among the species, therefore, may result from differences in the proportional contributions of the various food sources to their diets as well as distinctions in metabolism. The distinct changes in the fatty acid and stable isotope signatures in all three filter-feeders in the Kariega and Great Fish regions are likely influenced by the diversity in regional vegetation and hydrology in the different systems, combined with interspecific differences in resource partitioning among the species.]]> Thu 13 May 2021 04:32:19 SAST ]]> http://vital.seals.ac.za:8080/vital/access/manager/Repository/vital:1181 Thu 13 May 2021 04:29:25 SAST ]]> http://vital.seals.ac.za:8080/vital/access/manager/Repository/vital:1508 Thu 13 May 2021 04:17:36 SAST ]]> http://vital.seals.ac.za:8080/vital/access/manager/Repository/vital:1420 Thu 13 May 2021 04:06:14 SAST ]]> http://vital.seals.ac.za:8080/vital/access/manager/Repository/vital:4314 Thu 13 May 2021 04:04:18 SAST ]]> http://vital.seals.ac.za:8080/vital/access/manager/Repository/vital:1013 Thu 13 May 2021 03:58:59 SAST ]]> http://vital.seals.ac.za:8080/vital/access/manager/Repository/vital:5636 Thu 13 May 2021 03:50:03 SAST ]]> http://vital.seals.ac.za:8080/vital/access/manager/Repository/vital:4313 Thu 13 May 2021 03:38:11 SAST ]]> http://vital.seals.ac.za:8080/vital/access/manager/Repository/vital:3870 Thu 13 May 2021 03:35:30 SAST ]]> http://vital.seals.ac.za:8080/vital/access/manager/Repository/vital:814 Thu 13 May 2021 03:30:21 SAST ]]> http://vital.seals.ac.za:8080/vital/access/manager/Repository/vital:3681 Thu 13 May 2021 03:08:45 SAST ]]> http://vital.seals.ac.za:8080/vital/access/manager/Repository/vital:5724 Thu 13 May 2021 03:05:16 SAST ]]> http://vital.seals.ac.za:8080/vital/access/manager/Repository/vital:2983 Thu 13 May 2021 02:58:57 SAST ]]> http://vital.seals.ac.za:8080/vital/access/manager/Repository/vital:1004 Thu 13 May 2021 02:46:55 SAST ]]> http://vital.seals.ac.za:8080/vital/access/manager/Repository/vital:3317 Thu 13 May 2021 02:44:43 SAST ]]> http://vital.seals.ac.za:8080/vital/access/manager/Repository/vital:1912 Thu 13 May 2021 02:43:46 SAST ]]> http://vital.seals.ac.za:8080/vital/access/manager/Repository/vital:1633 Thu 13 May 2021 02:27:53 SAST ]]> http://vital.seals.ac.za:8080/vital/access/manager/Repository/vital:1614 Thu 13 May 2021 02:01:03 SAST ]]> http://vital.seals.ac.za:8080/vital/access/manager/Repository/vital:3006 Thu 13 May 2021 01:54:52 SAST ]]> http://vital.seals.ac.za:8080/vital/access/manager/Repository/vital:1532 Thu 13 May 2021 01:53:50 SAST ]]> http://vital.seals.ac.za:8080/vital/access/manager/Repository/vital:4309 97 % in selectively extracting the aflatoxins (AFB1, AFB2, AFG1 and AFG2). High reproducibility marked by the low %RSDs of < 1% and low LODs of ≤ 0.02 ng/g were calculated in all cases. The LODs were within the monitoring requirements of the European Commission. The results were validated with a peanut butter certified reference material. The chlorophyll MIP on the other hand selectively removed chlorophyll that would otherwise interfere during pesticide residue analysis (PRA) from > 0.6 to <0.09 Au in green plants extracts. The extracted chlorophyll was removed to far below the level of ≥ 0.399 Au that is usually associated with interference during PRA. Furthermore, the MIP demonstrated better selectivity by removing only chlorophyll (> 99%) in the presence of planar pesticides than the currently employed graphitized carbon black (GCB) that removed both the chlorophyll (> 88%) and planar pesticides (> 89%). For the interfering cholic acid during drug residue analysis, cholic acid MIP electrospun nanofibers demonstrated to be more sensitive and possessing higher loading capacity than the MIP particles. 100% cholic acid was removed by the nanofibers from standard solutions relative to 80% by the particles. This showed that the nanofibers have better performance than the micro particles and as such have potential to replace the particle based SPE sorbents that are currently in use. All the templates were optimally removed from the prepared MIPs by employing a novel pressurized hot water extraction template removal method that was used for the first time in this thesis. The method employed only water, an environmentally friendly solvent to remove templates to ≥ 99.6% with template residual bleeding of ≤ 0.02%.]]> Thu 13 May 2021 01:07:56 SAST ]]> http://vital.seals.ac.za:8080/vital/access/manager/Repository/vital:883 Thu 13 May 2021 00:51:25 SAST ]]> http://vital.seals.ac.za:8080/vital/access/manager/Repository/vital:4025 Thu 13 May 2021 00:34:02 SAST ]]> http://vital.seals.ac.za:8080/vital/access/manager/Repository/vital:5627 Thu 13 May 2021 00:20:38 SAST ]]> http://vital.seals.ac.za:8080/vital/access/manager/Repository/vital:779 Thu 13 May 2021 00:07:12 SAST ]]> http://vital.seals.ac.za:8080/vital/access/manager/Repository/vital:4606 Mon 06 May 2024 05:23:01 SAST ]]>