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:42278 Wed 13 Mar 2024 14:27:45 SAST ]]> http://vital.seals.ac.za:8080/vital/access/manager/Repository/vital:30536 Wed 12 May 2021 23:47:02 SAST ]]> http://vital.seals.ac.za:8080/vital/access/manager/Repository/vital:36724 Wed 12 May 2021 23:25:46 SAST ]]> http://vital.seals.ac.za:8080/vital/access/manager/Repository/vital:38164 Wed 12 May 2021 23:20:52 SAST ]]> http://vital.seals.ac.za:8080/vital/access/manager/Repository/vital:29431 20 μg Chl-a l-1) were episodic and flow-dependent in the Gamtoos Estuary, whilst those in the Sundays Estuary were persistent and seasonal. Related to its reduced hydrodynamic variability – i.e. consistent nutrient-rich baseflows and reduced propensity for flushing events – persistent undesirable disturbances were highlighted for the Sundays Estuary, including: summer bottom-water hypoxia (< 2 mg l-1) and exceptional proliferations (> 550 μg Chl-a l-1) of two HAB species (Heterosigma akashiwo and Heterocapsa rotundata). Finally, fine-scale ecological research was undertaken in the Sundays Estuary to identify the processes – abiotic and biotic – that facilitate HABs (‘Daily’ and ‘Hourly’ studies). Findings from the ‘Daily’ study, identified inorganic nutrient availability (i.e. nitrate and phosphate) and mesohaline conditions (ca. 10) as the key bottom-up controls influencing the magnitude and duration of spring/summer phytoplankton blooms. Additionally, bottom-water hypoxia was explicitly linked to the decay of a single HAB species. During the ‘Hourly’ investigation, four known HAB-forming species were recorded at bloom concentrations. Model results indicated that variability in temperature, salinity profiles and nitrate concentrations were significant in facilitating the occurrence of HAB species. Finally, local biotic interactions (e.g. interspecies competition, diel vertical migration and mixotrophy) were recognized as key mechanisms shaping phytoplankton communities. The persistent occurrence of HABs is a new feature in South African estuaries and continued research is needed to recommend management responses. Ultimately, this research highlights the multitude of processes at work shaping phytoplankton variability in estuaries. From a broad perspective (i.e. seasonal and annual), processes such as freshwater inflow regimes, degree of anthropogenic disturbance, as well as seasonal temperature and nutrient supply patterns are the key processes. At a more refined scale (i.e. hourly and daily), local processes including salinity preferences, nutrient availability, diel light cycles and internal biotic interactions are the key drivers organising phytoplankton dynamics. Given the potentially severe ecological consequences of disrupting natural phytoplankton dynamics (e.g. HABs), an element of ‘unpredictability’ should be restored to the hydrological and chemical makeup of highly-regulated estuaries to prevent the continued exacerbation of eutrophic symptoms.]]> Wed 12 May 2021 23:00:12 SAST ]]> http://vital.seals.ac.za:8080/vital/access/manager/Repository/vital:27359 Wed 12 May 2021 22:58:07 SAST ]]> http://vital.seals.ac.za:8080/vital/access/manager/Repository/vital:36608 Wed 12 May 2021 22:40:28 SAST ]]> http://vital.seals.ac.za:8080/vital/access/manager/Repository/vital:38956 Wed 12 May 2021 22:39:13 SAST ]]> http://vital.seals.ac.za:8080/vital/access/manager/Repository/vital:39496 Wed 12 May 2021 21:02:40 SAST ]]> http://vital.seals.ac.za:8080/vital/access/manager/Repository/vital:36178 Wed 12 May 2021 20:57:22 SAST ]]> http://vital.seals.ac.za:8080/vital/access/manager/Repository/vital:38144 Wed 12 May 2021 20:18:44 SAST ]]> 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revealed the limited knowledge, attitude and practice of OT nurses about BPGs. During Phase Two an integrative literature review approach was followed in order to identify the best available evidence with regard to the facilitation of the implementation of best practice guidelines in operating theatres. Lastly, Phase Three: strategies that could be used to facilitate the implementation of best practice guidelines in operating theatres were developed. The researcher developed the conceptual framework using the six elements of Dickoff, James and Weidenbach (1968:422). The conceptual framework informed the development of strategies. The strategies are a synthesis of the conclusions drawn from the research findings (phase one and two) and the conceptualization thereof. The strategies were reviewed by six-panel members. Each panel member was supplied with the format for evaluation of the strategies which was based on the criteria established by Chinn and Kramer (2018:156) the results of which included in chapter 7. The researcher ensured that the data obtained was valid and reliable, necessary to assist the researcher to produce quality research. Ethical considerations were maintained throughout. In general, the results of this thesis indicate that the developed strategies that could be used to facilitate the implementation of best practice guidelines, in operating theatres at public hospitals in the NMBHDare unique and could be implemented in theatres in public hospitals. The researcher succeeded in achieving the purpose for this study, because the strategies which are understandable, clear, simple, applicable and significant to operating theatre unit has been developed for use by operating theatre nurses, to facilitate the implementation of best practice guidelines in operating theatres at public hospitals in the NMBHD.]]> Thu 13 May 2021 03:15:23 SAST ]]> http://vital.seals.ac.za:8080/vital/access/manager/Repository/vital:35287 Thu 13 May 2021 03:09:01 SAST ]]> http://vital.seals.ac.za:8080/vital/access/manager/Repository/vital:39590 Thu 13 May 2021 03:04:40 SAST ]]> http://vital.seals.ac.za:8080/vital/access/manager/Repository/vital:39566 Thu 13 May 2021 02:43:45 SAST ]]> http://vital.seals.ac.za:8080/vital/access/manager/Repository/vital:27301 Thu 13 May 2021 02:23:07 SAST ]]> http://vital.seals.ac.za:8080/vital/access/manager/Repository/vital:30934 Thu 13 May 2021 02:22:08 SAST ]]> http://vital.seals.ac.za:8080/vital/access/manager/Repository/vital:34124 Thu 13 May 2021 02:13:18 SAST ]]> http://vital.seals.ac.za:8080/vital/access/manager/Repository/vital:30565 Thu 13 May 2021 02:09:40 SAST ]]> http://vital.seals.ac.za:8080/vital/access/manager/Repository/vital:27179 Thu 13 May 2021 02:02:30 SAST ]]> http://vital.seals.ac.za:8080/vital/access/manager/Repository/vital:29817 m-toluidine > o-toluidine) and the cresols (p-cresol > m-cresol > o-cresol). Each guest mixture was selected based on data from experiments using either the industrial significance of its separation or because the mixture would add to the knowledge base of the host compound’s preferences and selectivities. In a separate study, TETROL and its derivative, (–)-(2R,3R)-2,3-dimethoxy-1,1,4,4- tetraphenylbutane-1,4-diol (DMT), were also allowed to compete for the inclusion of the guest cyclohexanone, where TETROL demonstrated superior ability. This host, in addition, showed potential for the separation of cis- and trans- 2-methylcyclohexanol.]]> Thu 13 May 2021 01:55:11 SAST ]]> http://vital.seals.ac.za:8080/vital/access/manager/Repository/vital:27409 Thu 13 May 2021 01:51:06 SAST ]]> http://vital.seals.ac.za:8080/vital/access/manager/Repository/vital:39841 Thu 13 May 2021 01:37:25 SAST ]]> http://vital.seals.ac.za:8080/vital/access/manager/Repository/vital:39575 2500g), and,therefore,most likely term gestation. Saving Babies further reported that 22.9% of all live births in South Africa was premature and 22.8% of birthswere unexplained intra-uterine deaths. Prematurity is one major complication of chorioamnionitis. When susceptibility for chorioamnionitis is considered during early pregnancy, it is possible to intervene and prevent or even reduce the incidences and complications of chorioamnionitis.A qualitative research study was conducted in three phases. In Phase One(Part One), a theoretically constructed patient scenario of chorioamnionitis was presented to ten midwives,and semi-structured individual interviews were done to elicit information regarding how they screen for and manage chorioamnionitis. In Phase One(Part Two), experienced medical practitioners in the field of obstetrics and gynaecology were individually interviewed, also using semi-structured individual interviewsto gain their views regarding chorioamnionitis as a contributing factor to maternal morbidity and mortality. Qualitative findings in Phase Oneindicated that there is a general lack of knowledge regarding chorioamnionitis among midwives, resulting ininadequate screening, misdiagnosis and mismanagement of the condition. Experienced medical practitioners confirmed that chorioamnionitis is underdiagnosed, misdiagnosed or undiagnosed and underreported,and they hold views that it is difficult to treat and control pregnancy-related infections according to current practice.An integrative literature review was conductedin Phase Twoand literature regarding diagnostic biomarkers, screening options to diagnose chorioamnionitis and management of chorioamnionitis were extracted. After evidence synthesisofPhase Oneand Phase Twodata, a best practice guidelinefor screening and managing viiwomen withchorioamnionitiswas developed usingthe National Institute for Health and Clinical Excellence guideline development approach in Phase Three. The purpose of the best practice guideline for screening and managing women with chorioamnionitis was to provide a guideline onhow to manage women who are at risk and those who present with signs and symptoms of chorioamnionitis at any stage during their pregnancy. Five recommendations were made that involve screening for chorioamnionitisand causative factors, biomarkers to diagnose chorioamnionitis, management of chorioamnionitis that includes pharmacological and non-pharmacological management, and health education to women.Ethics for this research study were guided by the ethical principles and guidelines of the Belmont Report. The trustworthiness of this research study was adopted from Ravitch and Carl,and was based on criticality, reflexivity, collaboration, and rigour. An independent coder and reviewer wereto verify the data that were included in the best practice guideline. Expert reviewersappraised the best practice guidelineusing Appraisal of Guidelines for Research and Evaluation II tools.]]> Thu 13 May 2021 01:25:46 SAST ]]> http://vital.seals.ac.za:8080/vital/access/manager/Repository/vital:36879 Thu 13 May 2021 01:12:28 SAST ]]> http://vital.seals.ac.za:8080/vital/access/manager/Repository/vital:27180 Thu 13 May 2021 01:11:35 SAST ]]> http://vital.seals.ac.za:8080/vital/access/manager/Repository/vital:34277 Thu 13 May 2021 01:03:28 SAST ]]> http://vital.seals.ac.za:8080/vital/access/manager/Repository/vital:27303 Thu 13 May 2021 00:58:14 SAST ]]> http://vital.seals.ac.za:8080/vital/access/manager/Repository/vital:38141 Thu 13 May 2021 00:36:54 SAST ]]>