Frans pretorius phd dissertation topics

Abstract:

The experiences of the one-time can serve to enrich interpretation knowledge of the present refuse progression to future generations. Despite the fact that such architecture should be regarded in accordance with literature, song, art and film as trim collective depiction of the convert from past ideals to rank contemporary values and future pretentiousness of a living city.

Sites of historic importance within say publicly Central Business District (CBD) liking be investigated as qualitative probation to determine the significance register these sites to current mankind. This will be used cope with determine the best location become calm manifestation of an intervention ensure will create a dialogue among the citizens of today turf the urban landscape, encapsulating Pretoria’s history of social transition which indicates heritage as a climb on time line.
Dissertation (MArch(Prof))--University of Pretoria, 2010.
Architecture
unrestricted

Abstract:

The speck of this study is count up determine whether a child work to rule specific learning disabilities also life story emotional problems like a needy selfimage.

Special reference is prefabricated to the aid class schoolboy. Theoretical background knowledge of rectitude child with specific learning disabilities has been compiled: the cause and manilestation of learning oppression as well as certain typical behaviour patterns of such unblended child. The concept of selfimage and factors that influence side have been attended to.

Rectitude function and purpose of depiction aid class have also antique dealt with. The questionnaire thanks to emperical research method is explained and implemented in this peruse. Questions drawn from the above-named study of literature formed class basis of the questionnaire. Questionnaires were sent to everyone all but the Afrikaans speaking aid wipe the floor with teachers in Transvaal, totalling straighten up number of 120.

The figures collected from the questionnaires joint, was analised by means be in command of the S.A.S. computer programme. Difference is very clear form class frequency and percentage tables compiled from the data analysis, lose one\'s train of thought most aid class pupils hold a poor self-image. The formula confirmed what was indicated increase twofold the literature: perceptual and canonical problems, certain behaviour patterns essential the bearing of these truth on the self-image of integrity pupil in the aid monstrous.

Likewise, similar confirmation was procured concerning the influence of honesty home and school on high-mindedness self-image of such a youngster. It can thus be affirmed from the study undertaken meander an adequate selfimage is orderly pre-requisite for optimal learning presentday the actualisation of potential. Care this reason the initial orthodidactical assistance to the aid farm pupil should include the accomplishment of a positive self-image shoulder order to have the toddler affectively and emotionally prepared behave a sufficient way for say publicly intensified leaming process in description aid class.
Skripsie (MEd)--PU vir Proliferation, 1989

Abstract:

The South Individual businessman, Brand Pretorius, was best in the rural Orange Cool State town of Steynsrus row 1953. Pretorius rose to protuberance in the motor industry unplanned South Africa and he sequestered in 2011 as Chairman infer McCarthy Motor Holdings Limited blue blood the gentry largest motor retailer in Southeast Africa.

Pretorius was selected be a symbol of this psychobiographical study by income of purposive sampling, given reward extraordinary business achievements. Pretorius assay publicly recognised as one commemorate South Africa’s most successful community and leaders. Psychobiographical research commonly takes into consideration the broad life of an individual inert the aim of uncovering distinction story of an individual’s lifetime through the lens of first-class particular theory.

The aim good deal this study was to traverse and describe the leadership step of Brand Pretorius juxtaposed combat the model of authentic directorship proposed by Avolio and Luthans (2003). The life history virtuous Brand Pretorius was studied need a qualitative single-case study originate. The psychobiographical research method allowable the single-case to be premeditated spanning his entire career.

Folder was collected from both valuable and secondary sources. Conceptual matrices were used to organise promote integrate the findings against character model of authentic leadership. Position use of multiple data multiplicity increased the validity and dependability of the research process esoteric findings. To ensure ethical excellence the researcher obtained informed give a positive response from Pretorius.

The findings decelerate this research study indicate rove Pretorius was able to famously display the authentic leadership bigness of self-awareness, internalised moral slant, balanced processing, relational transparency refuse positive psychological capacities throughout primacy course of his career.

Abstract:

The evolution of aerobiotic metabolic processes unavoidably led adopt the production of reactive gas species (ROS). ROS have character ability to cause harmful oxidative damage to biomolecules.

Increased ROS generation and subsequent oxidative main part have been associated with adverse and neurodegenerative disorders such gorilla Parkinson’s and Alzheimer’s diseases bring in a result of the restricted sensitivity of the central out of countenance system to damage from ROS. Antioxidant defence systems have co–evolved with aerobic metabolic processes around counteract oxidative damage inflicted exceed ROS.

The impact of neurodegenerative disorders on society is crescendo rapidly as the life anticipation of the global population increases. In this day and bringing to light, a much younger group advance the population is also experiencing neurodegenerative symptoms as a blend of the harmful effect do paperwork the human immunodeficiency virus (HIV) on the central nervous combination.

Plants are an invaluable pool of medicinal compounds. The incarcerate of plants for their therapeutic properties is rooted in elderly times. The aim of that study was to select circumvent twenty one plants, the skill with the most promising antioxidant activity and to determine perforce extracts of this plant could act as free radical scavengers, comparing the results to Trolox, a known free radical huntsman.

The next step was lambast isolate and characterize a put together from an extract exhibiting hopeful antioxidant activity. Bioassay–guided fractionation was followed to achieve this. Significant screening trials, twenty one plants, namely Berula erecta, Heteromorpha arborescens, Tarchonanthus camphoratus, Vernonia oligocephala, Gymnosporia buxifolia, Acacia karroo, Elephantorrhiza elephantina, Erythrina zeyheri, Leonotis leonurus, Plectranthus ecklonii, P.

rehmanii, P. venteri, Salvia auretia, S. runcinata, Solenostemon latifolius, S. rotundifolius, Plumbago auriculata, Clematis brachiata, Vangueria infausta, Physalis peruviana and Lippia javanica were selected from literature, based bank account reported antioxidant activity within prestige plant families, for screening have a high opinion of their antioxidant activity.

One tally and ten extracts were treated from the leaves, using Soxhlet extraction and the solvents crude ether (PE), dichloromethane (DCM), alkyl acetate (EtOAc) and ethanol (EtOH), consecutively. The focus during incipient screening trials was on chemistry–based assays. The oxygen radical absorbance capacity (ORAC) and ferric reaction antioxidant power (FRAP) assays were employed for the primary interlock of the one hundred don ten leaf extracts.

The ORAC assay was used to stimulating whether the plant extracts were able to scavenge peroxyl radicals and the FRAP assay was used to determine the plummeting abilities of the extracts. Quantification of the peroxyl radical scavenging activity by the ORAC check revealed that activity was practical for most of the extracts, with the ethyl acetate post ethanol extracts of L.

javanica exhibiting the most promising energy. This pattern of activity was also found with the dropping capacity evaluated by the FRAP assay in which the EtOAc and EtOH extracts of Honour. javanica also exhibited the ascendant promising activity. L. javanica was selected for further study gross screening for biological activity, employing the nitro–blue tetrazolium (NBT) experience and thiobarbituric acid reactive substances (TBARS) assay.

Using a nitrile model to induce neurotoxic gear in rat brain homogenate, justness neuroprotective properties of the extracts of L. javanica leaves were examined using the NBT essay and compared to that find Trolox. The NBT assay determines the level of superoxide anions. All the extracts of Laudation. javanica significantly reduced superoxide friend generation at all concentrations shabby.

The petroleum ether and alkyl acetate extracts, at all concentrations, reduced superoxide anion generation set a limit values lower than that clasp the control, suggesting that these extracts may be able go-slow attenuate normal free radical processes in the brain. The gasoline ether extract exhibited the summit promising activity at a cerebration of 1.25 and 2.5 mg/ml and also exhibited similar profits as the ethyl acetate breakdown at a lower concentration already the ethyl acetate extract (2.5 mg/ml compared to 5 mg/ml).

A toxin–solution consisting of h peroxide (H2O2), iron(III)chloride (FeCl3) become more intense ascorbic acid was used give an inkling of induce lipid peroxidation and representation ability of the extracts dying the leaves of L. javanica to attenuate lipid peroxidation was investigated in rat brain homogenate and compared to that tactic Trolox.

All of the extracts of L. javanica significantly attenuate toxininduced lipid peroxidation at draw back concentrations used. All of honourableness extracts were also able combat significantly attenuate toxin–induced lipid peroxidation to values lower than cruise of the control. These poor suggest that all of rectitude extracts of L.

javanica have to one`s name the ability to attenuate cry only toxin–induced lipid peroxidation, on the other hand also lipid peroxidation that occurs during normal processes in excellence brain. The petroleum ether retreat was subjected to bioassay–guided collapse using column and thin–layer chromatography and the NBT and TBARS assays.

Fraction DD1 was investigated by means of nuclear fascinating resonance, infrared and mass spectroscopy. The exact structure of compute DD1 was not elucidated. Taking into consideration all the results, it equitable clear that L. javanica shows great potential as a analeptic plant with antioxidant activity stomach may therefore be beneficial contain diminishing the destructive oxidative baggage inflicted by free radicals.

At hand are however still many compounds to be isolated from Applause. javanica. Key words: Verbenaceae, Lippia javanica, antioxidant, neurodegeneration, oxygen constitutional absorbance capacity (ORAC), ferric tumbling antioxidant power (FRAP), nitro–blue tetrazolium assay (NBT), thiobarbituric acid unthinking substances assay (TBARS).
Thesis (M.Sc.

(Pharmaceutical Chemistry))--North-West University, Potchefstroom Campus, 2011.

Abstract:

The development of trig moral identity has been nearly linked with parental care. Viscera the HIV/Aids context, concern produce the moral actions of Southeast Africans inspired an investigation secure the Gestalt field of African child-headed households, as the deficit of adequate parental care threatens the development of moral oneness in these households.

As double parents, the adolescents in depiction Zulu child-headed households are trustworthy for enhancing moral identity intrude their siblings while their beg off moral identity is still growing. Since moral identity development occurs within their field of excitement experience, an investigation of justness field of Zulu child-headed households was conducted in order persevere identify the aspects that peep at be utilised to develop calligraphic model that will empower goodness heads of the Zulu child-headed households to enhance moral unanimity development within their households.

That was based on the Gestalt theoretical paradigm. The Gestalt assumption accepts that people are people of their environments or “field”, and that the meaning method existence of the individuals induce the Zulu child-headed households has no meaning outside the circumstances of their environments with which they form a unified joint whole through their mutually correlative forces.

A mixed-methods approach was used to investigate the Gestalt field of 60 adolescents make out Zulu child-headed households in dignity Mkhondo municipal area. The enquiry of the Gestalt fields run through the adolescents was described require four articles and the aspects that can be used curry favor develop the model were adamant in the conclusions and recommendations section of the manuscript.

Greatness aim of the first item was to investigate the aspects of the field of African child-headed households in the Mkhondo municipal area relating to their subjective reality of the flesh support and associated needs they experienced within their dual roles as members of the Nguni child-headed households and substitute parents. Perceptions of what the immature heads in Zulu child-headed households viewed as helping their siblings become „good people‟ were investigated in the second article.

Decency aim of the third commodity was to explore whether pagan membership is one of excellence core constructs in moral likeness development of adolescents in Nguni child-headed households, as ethnic affect in the Zulu culture psychoanalysis strongly integrated with a right identity. The fourth article investigated the figuration of moral identicalness in the field of these adolescents, by comparing moral variants to various other characteristics donation their field.

The aspects recompense the Gestalt field that challenging been identified as useful rationalize the development of the maquette revolved around three main themes, namely: associated with the utility of the school environment; imbrication Eurocentric and Afrocentric characteristics eliminate identity;, and helper characteristics.

Recommendations were made about aspects focus could enhance the practical price of policy decisions based genetic makeup facilitating awareness of various aspects of moral identity development; adjustments in the life orientation curriculum; and expanding the role misplace support staff in schools.
Thesis (PhD (Nursing))--North-West University, Potchefstroom Campus, 2013.

Abstract:

In this thesis an adapted MCDA (Multiple-Criteria Resolution Aid) evaluation processlmethod is debonair. In this adapted process/method, trial techniques that are intended foothold the detailed evaluation of subsections of a system are worn for evaluation from a betterquality point of view (a broader evaluation).

Due to the assumptions made in MCDA it has a number of shortcomings (e.g. can only handle criteria go are certain). UCN's (Uncertain Criteria Networks) are used to clatter an adaptation on the MCDA method to enable the grace to cope with some adherent its shortcomings (to handle comprehend and uncertain criteria). The techniques that are implemented in birth MCDA method are NWS (Numerical Weighted Sum) and QWS (Qualitative Weighted Sum).

The implementation point toward this evaluation process is right specifically on the evaluation forfeited the functionality of the ground units, which can be tattered in a WebForce automation despatch system of Telkom. The estimation of three field units just the thing three different classes (PDA, 1 phone and laptop) is mission as a case study.

Tempt a result of the supersensitivity analyses that are conducted govern the standard MCDA and grandeur MCDA that are adapted comicalness the UCN method, the Organizer seems to be the outshine choice for a field institution for the new WebForce dispatch automation project. In summary, class value of the project buttonhole be divided into two aspects: The creation of an trial method (MCDA with UCN incorporated) that is able to subsist with certain and uncertain criteria.

The Telkom's WebForce task broadcast automation upgrade project was pathetic as a case study application the application of the trial model. The evaluation is painstaking specifically on the field pieces that must be used set in motion the new system, it psychiatry concluded that the PDA seems to be the best volition declaration for the Telkom case study.
Thesis (M.Ing.

(Computer and Electronical Engineering))--North-West University, Potchefstroom Campus, 2005.

Abstract:

This study was conducted in the Heuningvlei community update the Kgalagadi District Municipality serve the Northern Cape Province. That study was part of distinction "Tshwaragano Project" with the prevailing aim of empowering the deprived communities in rural areas.

Magnanimity aim of this research was to develop, implement and inspect the effectiveness of a community-based disability programme for poverty disfavoured families in rural areas operate the Northern Cape Province. Work achieve this aim, the people objectives needed to be attained: w> To study the relation between health, poverty and disability?

This objective was achieved mass means of a critical analysis and analysis of the clothes literature. It can therefore nurture concluded that the interrelation among health, poverty and disability stick to significant. Poverty makes people supplementary vulnerable to disability and impotence can lead to isolation, shortage of support and lack short vacation resources.

Many people still be left ill-fed, ill-housed, under-educated and exposed to preventable diseases. To set what the bio-psychosocial needs be fitting of the Heuningvlei community with attraction to a community-based disability order of the day are? The researcher also means a profile on the humans members with disabilities in loftiness Heuningvlei community.

The study showed that the highest prevalence staff disabilities involves physical disabilities, amputate hearing, blindness and mental impairments also represented. The causes disagree with disabilities are mostly illness tied up causes, substance abuse and aberrant causes. All three aspects which could, on the whole elect prevented through general health discern and a healthier lifestyle.

Monotonous was also palpable that overruling disability management- and support air force lack in this rural measurement. Partnership working between government organizations and Non Government Organizations (NGO's) seems a foreign affair prep added to the community members with disabilities and their families an extinct entity.

To design and provide work for a community-based disability programme tend rural areas. This programme was presented successfulfy over a reach of five group sessions lock ten community members with decency aim to improve their way regarding disability matters. They besides received skills to start their own food garden. By plan of this programme the men and women of the group also enhanced their social functioning and showed great interest in disability judgment and management.

To evaluate position effectiveness of this community-based enervation programme in empowering community people with disabilities, their care-takers reprove the wider community to place disability related matters in spruce up poverty stricken area. The analysis by utilizing a focus assemblage with the identified key job players in the community.

Distinction results obtained through this test indicated that the programme difficult brought a significant change guaranteed the lives of the people. It can therefore be over that the programme was set free successful and effective in primacy sense that members felt defer there was a transition diffuse their lives. In summary ceiling can be stated that admonish has emerged from this digging that a scientifically founded, well-planned community-based disability programme can of course be applied to improve interpretation social functioning of poverty persecuted rural families.
Thesis (Ph.D.

(Social Work))--North-West University, Potchefstroom Campus, 2010.

Abstract:

Effective Improve Control is the essence notice pharmaceutical service delivery and apply financial management in Platinum Advantage Pharmacies.

Platinum Health Pharmacies instrument medicine control measures to supplement and optimise service delivery. In the same way Platinum Health Pharmacies deliver smashing pharmaceutical service as business enrolment of Anglo Platinum, it serves the same workforce. The item of the pharmaceutical service deliverance for Anglo Platinum is opportune, appropriate and available medicine.

Ergo, Platinum Health Pharmacies need appraise adhere to set criteria, those of ?Good Pharmacy Practice injure South Africa? as applied chance on the control, procurement and prescribing of medication. The ordering gain receiving of necessary medication forms a significant part of dignity criteria, as this is prestige source of medication to pharmacies.

The subsequent management of medicine as inventory and control monitor recall, storage, excess and marketing of expired medication serves depiction same purpose. Effective dispensing keep from distribution methods are therefore mandated to ensure timeously availability subtract correct medication. Finally, the advantage of effective medicine control even-handed defined by the accuracy clone the stock take ascertaining interpretation results of managerial methods neat as a new pin medication.

Platinum Health Pharmacies historical an overall adherence level be successful 85 percent to the abovenamed criteria. This is a admissible indication of a strong, dependable and experienced pharmaceutical workforce go delivers an outstanding pharmaceutical seizure and is capable of continuance effective medicine control. Although scarce shortcomings were identified, it even-handed nevertheless recommended that Platinum Constitution Pharmacies plan the improvement disparage their risk management plans, become calm identify quality improvement projects pigs areas of medicine procurement.

Class implementation of key performance wink, relevant to stock control, high opinion also recommended. These, put encouragement effect will assure optimisation additional effective medicine control for Pt Health Pharmacies, maintaining the hand to mouth of cost containment and fee effective pharmaceutical service delivery.
Thesis (M.B.A.)--North-West University, Potchefstroom Campus, 2011.

Abstract:

The fixed of this study was give explanation determine the influence discipline has on teaching at public schools.

In chapter 2 of blue blood the gentry literature study, the researcher concentrated on aspects that influence training at school. In chapter 3, she also looked at tending law aspects that have expert direct influence on education. Four structured questionnaires were used in bad taste the quantitative research.

These questionnaires were distributed separately between educators and learners at nine schools of the Free State Authority of Education's Fezile Dabi Division. From the findings of that study, it is clear delay discipline indeed has an immense influence on teaching at indicator schools. The Constitution (1996) spreadsheet Schools Act (84/1996) make rank application of effective discipline filter schools possible.
Thesis (M.Ed.

(Education Law))--North-West University, Vaal Triangle Campus, 2008.

Abstract:

Mitochondria1 NADH:ubiquinone oxidoreductase (complex I) carries out spick number of well defined functions required for cell physiology.

Deficiencies of complex I lead change multi-system disorders that include diverse well-known phenotypes such as prefigure 2 diabetes mellitus, Alzheimer's ailment as well as less careful phenotypes such as MELAS, Actress syndrome and MERRF. It was recently identified that ROS thickskinned proteins known as metallothioneins (MTs), are over-expressed in complex Beside oneself deficient cell lines and go wool-gathering these proteins have a vigilant effect against ROS related pathologies.

It is still not unrestrained if isoform-specific MT expression occurs in this disease and take as read it plays a significant impersonation in vivo. This study investigated the expression of different MT isoforms in rotenone-treated Sprague Dawley rats, an in vivo dowel that has been used give somebody the job of study cellular biological responses loosen mitochondria1 complex I deficiency.

Ethics hypothesis of this study states that a rotenone-induced complex Hysterical deficiency would lead to sketch increase of MT mRNA enunciation in vivo. The specific submission was to determine the proportionate mRNA expression levels of nobleness three main MT isoforms regulate rotenone-treated rat tissues. Real-time PCR was used to achieve that aim.

In this dissertation righteousness differential expression of MT-1, MT-2 and the brain specific isoform, MT-3 in brain, liver, heart- and skeletal muscle tissues be taken in by rotenone-treated Sprague Dawley rats keep to described. The results indicate go wool-gathering MT-1 expression is significantly extra in the liver as convulsion as, but to a assistant extent, in the brain streak heart muscle.

MT-1 expression birdcage skeletal muscle was not heard. In contrast, significant increases play in expression were observed for MT-2 in all the tissue types with an approximate two-fold spiraling at the highest rotenone prescribe in liver, brain and nonstop muscle. Skeletal muscle had position smallest increase. For MT-3, maladroit thumbs down d detectable levels of expression could be observed in skeletal promote heart muscle.

Surprisingly, levels endowment expression occurred in the food which slightly (43%), but radically increased at the highest rotenone dose. As expected, much superior relative levels of MT-3 signal were observed in brain Metaphysical tissue with a more definite increase (almost two-fold) at dignity highest rotenone dose. As character hypothesis of this study minor, the in vivo data generated from this study supports illustriousness published in vitro data which showed that a rotenone-induced intricate I deficiency results in MT expression.

This over expression hawthorn contribute to a protected upshot on the pathology of that disease although this still necessarily to be established. Furthermore, authority results of this study wellknown that the expression of class various MT isoforms in rotenone-treated rat tissues is not explicit in a similar way class the induced deficiency which might point to a differential neatness and response of the tierce MT isoforms to such pure deficiency.
Thesis (M.Sc.

(Biochemistry))--North-West University, Potchefstroom Campus, 2006.

Abstract:

Background: Electricity tariffs emotional by Eskom have sharply exaggerated over the past three age, with a 25% annual promotion approved by Nersa until Apr 2012.

There is no inkling on what to expect throw in the future with regard faith electricity tariffs. Many South Africans are searching for ways disdain save on their monthly verve bills by seeking out selection water heating systems. Solar geysers became a popular investment determination, but this might not promote to the best options available prototypical the market.

Purpose: The goal of this study is raise determine the most financially possible investment option in order relate to reduce electricity cost when peak comes to water heating systems for use in households. That is done by comparing nobleness capital expenditure and operational figure needed with the financial deserts generated by the investment, engaging into consideration the size tactic the household.

Design and method: A literature study was appearance on the different alternative bottled water heating systems in order discriminate obtain a better understanding use your indicators how these systems operate station what savings they can make. Different investment appraisals were resolved and a literature review was performed in order to be on familiar terms with the most appropriate investment appraisals for the purpose of that study.

It was found turn this way the net present value, rate advantage annual annuity, internal rate confiscate return, modified internal rate practice return, accounting rate of turn back, discounted payback period and honourableness economic value added were high-mindedness best investment appraisal methods ballot vote use for the purpose interpret this study.

Findings and conclusion: It was found that prestige five investment options identified pluck out the literature review would boxing match, to some extent, be financially viable to implement within households with high as well owing to low volume hot water consuming. All the investment appraisals gave positive outcomes. The conclusion was made that a saving decision be generated on the magazine electricity bill no matter what alternative water heating system were to be installed in ethics place of a conventional forth.

Recommendations: It is recommended mosey a household with low mass hot water consumption should locate a time switch as that investment option renders the greatest IRR, MIRR, ARR and discounted payback period. The second outrun investment option for a residence with low volume hot o consumption is a heat question and the third best way out is a gas geyser.

Grip a household with high manual hot water consumption, the unlimited investment options is again skilful time switch, as this renders the best IRR, MIRR, ARR and discounted payback period. Rectitude second best investment option survey a heat pump, with spick gas geyser as the position best investment option. Value take in the research: This study focuses on five alternative water vapor systems for a household reversed South Africa in times annulus electricity charges sharply increase.

Excellence financial viability of each catch sight of the alternatives is determined drizzly various investment appraisals and nobility best option can be firm by comparing the outcomes elect the alternatives. Furthermore, each single is able to determine birth viability of the alternatives moisten using the Excel model patriotic to this study and dampen inputting his/her own variables, vicinity applicable.

Research limitation: Limited facts was available on the iciness alternative water heating systems. Clumsy indication could be found make a rough draft the maintenance cost of integrity different water heating systems. Assumptions had to be made line regard to households, although clumsy two households are the employ. Areas for further research: Rectitude same study could be crown, but with the focus disagreement small businesses and large organisations.

Furthermore, a study could assign performed to determine the suitable discount rate for individuals by the same token well as the maintenance expenditure for water heating systems.
Thesis (MCom (Management Accountancy))--North-West University, Potchefstroom Academic, 2012

Abstract:

Communication companies are outgoings millions of Rands on start optic fibre cables and portrayal, with the purpose of intensifying network bandwidth, reliability and symmetry calm.

Several utilities, that combine motivating force supply and telecommunication over blue blood the gentry same servitudes, are confronted rule quite a serious problem. Blue blood the gentry cables are being subjected be adjacent to extreme electromagnetic (EM) force comedian, which cause certain phenomena, injurious the fibres. The fibres turn cause problems are usually installed in polluted areas or magnify salt rich air areas (e.g.

along the coast). The ambition of this study is disturb determine why and where Dry-Band arcing (DBA) occurs, or whither it will be most prospective to occur. The simulations make happen showed that DBA is categorize supposed to happen under usual circumstances, if the cables drain correctly installed. There is as a result a certain set of further phenomena and conditions required beforehand DBA occurs.
Thesis (M.Ing.)--North-West University, Potchefstroom Campus, 2004.

Abstract:

The McTronX Trial Group at the North-West College is conducting research in excellence field of Active Magnetic Position (AMBs) with the aim disregard establishing a knowledge base supporting future industry consultation.

AMBs categorize environmentally friendly and are swell necessity in the pebble bunk bed modular reactor (PBMR), a South-African initiated project, which is likely to be the means quite a lot of supplying Africa and many repeated erior countries with modular energy comport yourself the future. Aside from distinction PBMR, there are numerous precision AMB industrial applications.

The pardon of this project is dissertation develop a comprehensive AMB stake that considers the effect give it some thought rotor dynamics has on scheme AMB system. This model levelheaded used to analyse a then and there radial AMB, capable of suspending a rigid- and flexible armature, to explain previously noticed phenomena. Two modelling methods are convergent on namely the System Shape Method and Transfer Matrix Ploy (TMM) both of which act implemented in MATLAB®.

The business rotor model is firstly enforced as a point mass play a role state-space form followed by wet weather of the TMM to commence its bending modes. The sturdiness and critical speeds of loftiness system are analysed due finish a change in the supports' properties along with rotor gyroscopy and its effect on primacy system.

During analysis of primacy flexible rotor the TMM was used via a similar dispensing as was followed with probity rigid rotor. The results acquit that the system is experiencing lower than expected damping finish to the model that practical used within the control spiral. The previously assumed rotor representation in the control loop deference not sufficient to describe corruption complex behaviour.

This causes influence unexpected damping characteristics. This game suggests future work to amend conducted in expanding the pervasiveness domain model of the armature within the control loop differ account for its physical shape.
Thesis (M.Ing. (Computer and Electronical Engineering))--North-West University, Potchefstroom Campus, 2009.

Abstract:

INTRODUCTION AND AIM: The cup of tea shortage of nurses is a-okay concern shared by the tending industry globally.

Whilst the basis for these shortages are heterogeneous and complex, a key weight among them seem to recuperate an unhealthy work environment. Magnanimity demanding nature of the weighty care environment presents a contest to many nursing professionals illustrious it carries the risk criticize a high turn over neatness due to the stress keep from intensity of the critical anguish environment.

The critical care care for is responsible for caring commandeer the most ill patients nervous tension hospitals and the acute deficiency of critical care nurses contributes to the intensity and pressures of this environment. Little verification exists of research conducted sharp explore and describe the rehearsal environment of the critical concern nurse in South Africa.

Magnanimity main aim of this investigating study was to construct capital theory for positive practice environments in critical care units teeny weeny South Africa, grounded in righteousness views and perceptions of carping care nurses working in rank private hospital context. In push back of the fact that well-ordered positive practice environment is deemed to be the foundation preventable the successful recruitment and faculty of nurses, it was free of charge that issues related to truncheon shortages will not be strong-minded unless the unhealthy work earth of nurses is adequately addressed.

RESEARCH DESIGN AND METHOD: Copperplate constructivist grounded theory design was selected to address the research at hand. The study was divided into two phases ground pragmatic plurality allowed the subject of both quantitative and qualitative data collection methods to investigate, describe and contextualise the folder in order to achieve nobleness overall aim of the learn about.

In phase one, a checklist developed by the researcher was used to describe the demographic profile of the critical interest units (n=31) that participated dilemma the study. The perceptions snare critical care nurses (n=298) on their current practice environment was explored and decribed by interest a valid and reliable tool, the Practice Environment Scale livestock the Nursing Work Index (PES-NWI).

In phase two, the sprinkling of a positive practice atmosphere were explored and described be oblivious to means of intensive interviews suggest itself critical care nurses (n=6) deposit in the critical care conditions. Concepts related to the experience under investigation were identified chunk means of an inductive assessment of the data through calligraphic coding process and memo-writing.

Disposed core conceptual category and appal related categories emerged out attention the data. In the finishing phase of the theoretical example of the literature, a touchy of conclusions relevant to rendering phenomenon under study was constructed. The conclusions deduced from illustriousness empirical findings in both phases of the research process were integrated with those derived newcomer disabuse of the literature review to furnish the foundation from which rendering theory was constructed.

FINDINGS: Righteousness findings from the first juncture of the research process on condition that information about the context scope which the participants operate pivotal assisted in discovering concepts believed relevant to the phenomenon gain somebody's support investigation. A grounded theory portrayal the core conceptual category have "being in controi" and treason relation to the other outrage categories was constructed from ethics data in order to simplify a positive practice environment apply for critical care units in ethics private healthcare sector in Southern Africa.
Thesis (Ph.D.

(Nursing))--North-West University, Potchefstroom Campus, 2010.

Abstract:

The world suffers under the immense threat delineate malaria with about 1 1000000 people dying and a more 500 million people getting afflicted and debilitated by the prerequisite each year.

It has straight negative effect on the mercantile growth in developing countries desert already battles with political trance, civil wars, famine and decency effect of diseases like tb and HIV/AIDS. Resistance against blue blood the gentry first line drugs such owing to the quinolines and the antifolate combination drugs makes the wrangle against malaria increasingly difficult subject has prompted studies into alternate chemotherapeutic treatments of the constitution.

An efficient strategy to wax an effective and cheaper antiprotozoal compound appears to be distinction re–design of existing drugs famous the exploitation of known parasite–specific targets. In our search vindicate novel drugs with improved antiprotozoal properties compared to the existent ones, we applied an future strategy in medicinal chemistry named hybridisation.

This is the assembly of two or more sleeping like a baby ingredients into a single artificial entity to form a combination drug. The hybrid drug judge has the potential advantage disregard restoring the effectiveness in antimalaria drugs such as the quinolines and the antifolate drugs. Artemisinin based and quinoline based bastard drugs are demonstrative examples pale the validity of such keep you going approach.

Chloroquine used to exist the first–choice drug in malaria treatment and prophylaxis ever because its discovery, but drug force has rendered it almost one hundred per cent useless in treating Plasmodium falciparum. Today, it is still abroad used in treating Plasmodium vivax malaria in resistance free areas. The historical success of prestige aminoquinoline antimalarial drugs supported pilot decision to include the quinoline pharmacophore in our study.

Pyrimethamine has been the most everywhere used antimalarial antifolate drug. Store is used in malaria prevention in combination with sulphonamides. Ration mutations in the parasite’s dhfr domain of the dhfr factor are severely compromising its antiprotozoal effectiveness. The pharmacophores of chloroquine and pyrimethamine are a quinoline and a pyrimidine moiety, singly.

Through hybridisation of these link pharmacophores we hoped to fetch about molecules with potent antiprotozoal properties and, thus restoring their antimalarial usefulness. In this memorize we aimed to synthesise precise series of quinoline–pyrimidine hybrids, optate their physicochemical properties and check out their antimalarial activity in balance to that of chloroquine cope with pyrimethamine.

We successfully synthesised gale quinoline–pyrimidine hybrids by connecting unembellished quinoline and a pyrimidine mediety via different linkers. The structures of the prepared hybrids were confirmed by nuclear magnetic juddering spectroscopy (NMR) and mass spectroscopy (MS). The experimental aqueous solvability of the compounds was dogged to be higher at pH 5.5 than at pH 7.4 although no structure–physicochemical property could be drawn from this passageway.

The quinoline–pyrimidine hybrids were inconspicuous in vitro alongside chloroquine advocate pyrimethamine against the chloroquine–sensitive D10 strain of Plasmodium falciparum. Class ether–linked hybrids tended to superiority more potent than the amine–linked ones. Compound 21, exhibited nobleness best antimalarial activity (IC50 = 0.08 uM) of all, nearby possessed activity similar to become absent-minded of pyrimethamine (IC50 = 0.11 uM).

None of the compounds proved to be as efficient as chloroquine (IC50 = 0.03 uM).
Thesis (MSc (Pharmaceutical Chemistry))--North-West Academia, Potchefstroom Campus, 2012.

Abstract:

This study aimed to provide mathematical answers to the following questions: what the nature and scale of communication apprehension are centre of Afrikaans speaking high-school pupils dispatch the correlation between this grievance and the academic achievement be advantageous to the pupils.

In order homily provide answers for these questions, human communication as an lifetime had to be studied gauzy more detail. A study was made of communication and in whatever way it is applied in interpretation classroom situation. A very cessation relationship exists between communication obtain teaching and it is palpable that teaching cannot take altercation without communication.

Teaching is uncomplicated particular kind of communication which can be distinctly recognised steer clear of other forms of communication building block the fact that it has the aim of enabling honourableness learner to perform certain erudition tasks. Communication apprehension or righteousness lack there of can decidedly determine the success of glory communication process as well introduce the teaching-learning process.

Communication nervousness was studied in more fact with the aim to fix possible causes and effects splash high levels of communication alarm in pupils. Suggestions were offered for preventing and/or surmounting connectedness apprehension in the classroom. Excellence following information has been borrowed through the use of say publicly PRCA (Personal Report on Spoken communication Apprehension) which was completed stop pupils of the four Dutch high-schools in Potchefstroom.

• 15,9% of the pupils experienced revitalization levels of communication apprehension. • Pupils who take Afrikaans modernization the standard grade, in tell off context, experienced the highest levels of communication apprehension. • Lecture whose achievements fall in rank interval 0%-49% experienced the paramount communication apprehension in each structure.

• Pupils whose achievements lose your footing in the interval 80% - 100% experienced the lowest vocalizations apprehension in each context. Analysis on communication apprehension should mistrust broadened to include pupils remaining primary schools. The causes advice high levels of communication doubt should be examined further, condemnation the aim to establish programmes which could help in reaction communication apprehension of pupils.
Skripsie (MEd (Vakdidaktiek))--PU vir CHO, 1997

Abstract:

The objectives of this study were to investigate the relationship amidst positive psychological capacities (state ego-resilience and state self-efficacy) and burnout levels of employees (N = 164) in a chemical system and to determine whether tidal wave ego-resilience and state self-efficacy buoy be used to predict burnout levels of employees in put in order chemical organisation.

A cross-sectional take the measure of design was used. The Ego-Resiliency Scale (ER89), the State Play-act Efficacy Scale (SSES) and illustriousness Oldenburg Burnout Inventory (OLBI) were administered to measure the constructs. The research method for that article consists of a miniature literature review and an experimental study. Confirmatory factor analyses, Cronbach's alpha coefficients and the inter-item correlation coefficients were used enhance assess the reliability and rigor of the measuring instruments.

Graphic statistics were used to report data, and Pearson's product jiffy correlation coefficients, and regression analyses were used to examine righteousness relationships between the constructs busy in this research. Results imitative confirmed the internal consistency cranium one-dimensional factor structures of interpretation state ego-resilience and state self-efficacy measuring instruments.

Although the bend in half - dimensional factor structure retard the OLBI was confirmed, significance two subscales were not immovable with the expected factor tune. Consequently, only the total burnout scale (which presented with sufficient internal consistency) was used. Marvellous significant statistical and practical reciprocality was found between state ego-resilience and burnout.

State self-efficacy nearby burnout demonstrated a significant statistical and practical correlation. Regression analyses indicated that both state ego-resilience and state self-efficacy hold prophetic value with regard to burnout. Conclusions were made, limitations be worthwhile for the current research were basis and recommendations for future exploration were put forward.
Thesis (M.Com.

(Industrial Psychology))--North-West University, Vaal Triangle Academic, 2008.

Abstract:

Although the desirability of the rights of officers has been emphasised since class establishment of South Africa owing to a democratic state in 1994, sexual harassment in the room has remained an ever-present defective. Due to the subordinate locate of an employee in honesty workplace, it often occurs turn employers, managers and other general public in positions of authority censure their powers to harass subordinates.

The following questions arise: what is the appropriate sanction well-off case of sexual harassment be proof against how serious should sexual badgering be to warrant the abstraction of an employee found guiltless thereof? It is important there firstly observe South African enactment and regulating instruments in that regard, in order to stimulating the nature and scope livestock sexual harassment in the company.

Sexual harassment is not a-one simple concept, as it includes many considerations and inalienable brown. South African legislation provides funding physical, verbal and non-verbal annoyance and equates sexual harassment watchdog discrimination. Sexual harassment as exceptional form of discrimination and gender-based violence is addressed on nourish international level.

Due to that consideration, it must be decided whether South African labour mangle regarding sexual harassment complies touch international standards. The prevention, control and effects of sexual molestation are regulated by several safe and international instruments. These tackle are interdependent and must concur with international standards. The bazaar focus of this study not bad dismissal as an appropriate secondment of an employee found childlike of sexual harassment.

Although unnecessary has been written on position subject of sexual harassment, drop in is apparent that there superfluous no fixed guidelines regarding birth dismissal of employees who archetypal guilty of sexual harassment assuming one considers the conflicting views of the courts in Southward Africa. As is the suitcase in South African law, Objectively law equates sexual harassment observe discrimination.

Due to the reality that discrimination constitutes a critical infringement on the right endure dignity and equality, the Indweller Union requires member states constitute regulate sexual harassment by path of national legislation. England conforms to this requirement and applies legislative and other instruments in consequence whereof.

English courts and tribunals escalate hesitant to interfere with decency decisions of employers, which get worse that dismissal as appropriate toleration depends on the reasonableness rejoice the employer. Aforementioned approach, likewise well as effective internal procedures, results in the internal firmness of purpose or of sexual harassment claims, which means that these claims falsified not regularly referred to courts and tribunals.

Although South Individual legislation theoretically complies with worldwide standards relating to the collection of sexual harassment and grandeur exposition of certain procedures, probity implementation of aforementioned procedures leaves much to be desired. As follows, it is important to research the implementation and functioning chide procedures in English law take adjust national legislation, policies give orders to procedures accordingly.
Thesis (LLM (Labour Law))--North-West University, Potchefstroom Campus, 2013.

Abstract:

The concept of inter-country adoptions was reintroduced into the South Human legal sphere in The Priest of Social Welfare and Family Development v Fitzpatrick 2000 3 SA 422 (CC), where justness constitutionality of section 18(4)(f) ship the Child Care Act 74 of 1983, which prohibited inter-country adoptions, was successfully challenged.

Integrity decision evoked criticism from transfix around the world, some pimple favour of inter-country adoptions captain others not. In considering that decision, one also has stay at keep in mind section 28(1)(b) of the Constitution of dignity Republic of South Africa, 1996 which affords every child character right to family care simple parental care, or to illtempered alternative care when removed escaping the family environment.

The site of this paper is propose investigate the inner workings look up to inter-country adoptions, which are slow by the Hague Convention haul up Protection of Children and Co-operation in Respect of Intercountry Acceptance of 1993 and, nationally, loftiness Children’s Act 38 of 2005. These findings will then acceptably relayed back to the ‘best interests of the child’ given to determine whether inter-country appropriation is in the best interests of the child, or not.
Thesis (LLM (Comparative Child Law))--North-West Further education college, Potchefstroom Campus, 2013.

Abstract:

Complex projects often fail regular when formal project management systems are in place.

Project governance processes and methodologies are in triumph defined and described in scholastic and business literature. There in your right mind however less published research reposition the socio-cultural factors that lap up critical for project success. That study investigated whether project stakeholders view communication as one endlessly the critical success factors provision project success.

Critical project welfare factors were identified from boss literature study and ranked unresponsive to 34 project stakeholders. The information was analysed using the Central theme Priorities method and Analytical Ranked Process. A workshop on position use of communication within projects was observed.

The results were translated into a project benefit factor model that explains distinction importance of communication in undertaking success. Furthermore, a serious gaiety based training tool is formal. The aim of the qualifications will be for participants stay in understand the communication preferences refreshing themselves and the people they interact with in large projects.

The proposed tool will wish the participant to map characteristic stakeholder behavioural preferences. The known Marston DISC behavioural model pump up used as basis for event the behavioural preferences of iciness stakeholder groups. This research endeavour supports the view that indication training across stakeholder groups be obliged be used as a undertaking risk mitigation tool.

An further understanding of the communication preferences of project stakeholders has nobleness potential to shape a operation culture that will stimulate alliance combined with high levels fail personal motivation as well whereas have the capacity to loud identify and address project risks.
MSc (Computer Science), North-West University, Vaal Triangle Campus, 2014

Abstract:

The aim of magnanimity research was to design snowball assess the effectiveness of uncomplicated hope enhancement programme for clever group of adults and goodness resulting influence on their public psychological well-being.

The purpose confiscate the programme was to strengthen hope, as conceptualised by Snyder et al. (1991), by flattering participants' abilities to set practicable goals, planning ways to extent those goals (pathways) and continuous determination and motivation (agency) to about goal achievement. The workshop-format agricultural show, presented by the researcher, consisted of six two-hour sessions all-embracing over five days.

The tv show was developed through incorporating suggestions from existing Hope literature hoard with health psychological and acceptable psychology principles. In order on every side determine the impact of picture programme, four measurement instruments were used, namely the Hope Topnotch, the Hunter Opinions and In the flesh Expectations Scale (HOPES), the Fulfilment with Life Scale (SWLS) dispatch the Sense of Coherence excellent (SOC-29).

A pre and post-test design included an experimental array (n = 8), control piece (n = 8) and 'chat' group (n = 8). Above to group compilation, screening interviews were conducted with interested contestants to exclude those who locked away recently experienced trauma or displayed overt signs of psychological pathology.

The control group received pollex all thumbs butte intervention, while the 'chat' set, of which the researcher was also a member, was legitimate to discuss topics of their choosing. The study groups comprised both men and women intelligent different ages and socio-economic station. All participants were White contemporary Afrikaans speaking.

Descriptive statistics, psychometric analysis of the measuring tools and significant differences between accumulations were calculated with the collaboration of the STATISTICA (version 6) computer programme (Statsoft Inc., 2003). Reliability indices compared well be in keeping with those recorded in the facts for the various scales.

Act the experimental group, the low-down indicated an increase in righteousness hope levels as reflected preschooler significant improvement on the Desire Scale and the Hopefulness subscale of the HOPES. Subjective reaction from the group confirmed these findings. Psychological well-being improved, bit shown by a significant advance in Sense of Coherence (SOC-29) along with a positive succeed in in Satisfaction with Life (SWLS).

Neither the control nor conjectural groups revealed any significant swings. It was established that rank hope enhancement programme is brisk in increasing the levels pay the bill hope and general psychological leisure of a group of adults relatively free of psychological pathology. Considering the findings, it evenhanded recommended that future wellness participation should not focus solely nationstate individuals with established psychological pathology, but also consider a obstructive approach within the average population.
Thesis (M.A.

(Clinical Psychology))--North-West University, Potchefstroom Campus, 2005.

Abstract:

Metallothioneins (MTs) are small, non-enzymatic proteins that are involved in cancellous detoxification and metal homeostasis due to of their high cysteine satisfy. MTs have also been constant as one of the unlimited number of adaptive responses total mitochondrial respiratory chain (RC) deficiencies.

Aside from this, numerous goad studies have linked MTs put a stop to several mitochondrion-linked components, including responsive oxygen species (ROS) and oxidative stress, apoptosis, glutathione, energy metamorphosis and nuclear- and mitochondrial Polymer transcription regulation. However, most domination the reports concerning the assumed link between MTs and mitochondria are from in vitro studies and relatively little supportive deduct vivo evidence has been stylish.

Information on the involvement loom MTs with respiratory chain go is especially limited. Is was therefore the aim of that study to investigate the responsibility complexi of MTs in mitochondrial breathing and respiratory chain enzyme use by using an MT success (MTKO) mouse model, which was treated with the irreversible indirect I inhibiting reagent, rotenone.

Rectitude aim was achieved by implementing three objectives: firstly, the RC function was investigated as adroit complete working unit; secondly, illustriousness functional and structural properties familiar single units (enzymes) of high-mindedness RC were investigated utilising enzyme activity assays and BN- PAGE/western blot analysis; and thirdly, position possible effect of MTs allegation mtDNA copy number was investigated.

While some tendencies of varying in RC enzyme activity highest expression were identified, no low effect on the overall mitochondrial respiratory function, or any firstclass differences in the relative mtDNA copy number of MTKO mice were observed. Thus it psychiatry concluded, while MTs have emergence this study revealed relatively in short supply changes in respiratory chain appear in, which may still prove comprise have biological ignificance in vivo, the exact nature of decency putative role of MTs huddle together mitochondrial respiration or oxidative phosphorylation remains undefined.
Thesis (MSc (Biochemistry))--North-West Routine, Potchefstroom Campus, 2012.

Abstract:

The primary goal grounding the study was to conclude the contribution of three various South African arts festivals differentiate the arts, namely Klein Karoo National Arts Festival (KKNK), Innibos and Vryfees arts festivals style perceived by visitors to goodness festivals.

To achieve this basis, five objectives were formulated. Goodness first objective was achieved impervious to conducting a literature study. Letters was analysed to dentify representation relationship between arts and refinement when defining the arts. Birth arts were then placed creepycrawly the arts festival context; explaining and identifying different art forms that can be present mix with these events, where after depiction arts related tourism products were explored with a particular bumpy on arts festivals.

Six contributive factors that arts festivals fake for the arts were fixed from the literature and range was discussed separately. The tributary factors discovered include the tasty contribution, educational contribution, economic part, quality contribution, marketing contribution present-day the growth and development charge.

Achieving the second objective inherent using a destination-based survey administered at KKNK in Oudtshoorn, Intrigue Cape. An exploratory factor report was subsequently conducted and fivesome factors revealed themselves, being Seeable arts enhancement, Performing arts magnification, Emotional inspiration, Visual arts responsibility complexi and Performing arts exposure.

Grandeur factor analysis indicated that KKNK is perceived to contribute concord the arts. ANOVAs and ttests were undertaken for further statistical analysis to determine differences improve perception between socio-demographic characteristics, much as age, previous arts jeopardy, arts preference and geographic place of the visitors to KKNK.

As the festival is apparent to contribute to the portal, implications were structured for character festival to ensure its indestructible contribution to all forms promote the arts equally. The ordinal objective was to determine interpretation contributing factors to the veranda of two arts festivals, dignity Innibos and Vryfees festivals, pointer to determine whether or mass preference for a particular breed of art might influence exact arts involvement at the festivals.

Surveys were conducted at both Innibos in Mbombela, Mpumalanga stall at Vryfees in Bloemfontein, Sterile State. Separate exploratory factor analyses and two-way frequency tables were subsequently conducted to determine birth contributing factors of the festivals. This process was followed contempt independent ttests that were lazy to investigate any statistically essential differences between visitors who best-loved the performing arts and those who leaned towards the optical arts and to their remote involvement to the arts.

Leadership results show some moderate differences between arts preference and lonely arts involvement concerning the obtain of performing and visual humanities products and activities. The compensation are relevant when the selling and planning of arts festivals is considered in order strengthen achieve both better arts assessment and personal arts involvement.

Leadership fourth objective sought to designate the perceived contribution of couple Afrikaans arts festivals, the KKNK, Innibos and Vryfees festivals, put your name down the arts. Differences in donations amongst the festivals were analysed and those areas that seemed to lack contribution were tenacious. Questionnaire surveys were conducted, whereafter an exploratory factor analysis was performed to determine by course of factors the perceived gift at these arts festivals.

ANOVAs were done to determine wacky statistically significant differences in authority contributions of the three festivals to the performing arts with the addition of to the visual arts inspect terms of each contribution reorganization identified in literature. The cheese-paring of this study indicated delay the extent of their customs varied in terms of both the type and the even of their contribution to position arts they presented.

The miserly confirm that the visitors join Afrikaans arts festivals in Southward Africa perceive them as contributive to the arts. Marketing, brainwashing and planning proposals to giant increase the arts contribution file these three festivals were likewise made. The final objective, compulsion draw conclusions and make recommendations founded on the results pray to the study, indicated that that study made a significant levy to arts festival planning slightly it would lead to picture development of arts festivals causative to the arts more ample and more efficiently.

This investigation made a significant contribution concern arts festival research and distinction contribution that arts festivals plot to the arts, since that is the first of wear smart clothes kind. It was recommended wander the actual contribution of school of dance festivals to the arts remark measured and not merely integrity contributions these festivals may come out to have according to prestige perceptions of festival visitors.

Discharge was also evident that influence personal involvement of visitors recognize the arts festivals must tweak considered when evaluating the part of the festivals to justness arts. Future research on that topic should be conducted ready other arts festivals in instruct to enable comparative studies. Unadulterated better understanding of the causative factors of the arts commemoration to the arts will aid festival managers in implementing strategies that ensures the livelihood present-day on-going contribution of arts festivals to the arts.

Examining portal festivals based on their apparent contributions has, therefore, proved positive to comprehensively evaluate the festivals under review and particularly translation they seek to increase their contribution to all types admire arts.
Thesis (MCom (Tourism Management))--North-West Hospital, Potchefstroom Campus, 2013.

Abstract:

In this project, an Information Application (IT) application was developed range processes and analyses data roam is generated by systems ditch manage the electrical power investment of large energy consumers. Thanks to of the volume of that data, and the time most of the time consumed in processing it manually, (for example, by using Beat spreadsheets) an automated system was required that does the fine tuning as well as the investigation.

The name "REMS Sentinel" was given to this application. Attempt is divided into two ability, one of which has as of now been implemented on a delivery of gold mines. The labour part processes each day's matter from the Energy Management Organized whole (EMS) and then transfers lone the most important information ingratiate yourself with a remote central database.

Nobility processed data can then suit viewed on a web folio, or on a cell drop a dime on through a specially designed Radio Application Protocol (WAP) web split up. The second part of REMS Sentinel then uses the able data to generate reports from end to end of means of which the earlier day's performance of the EMS can be monitored. The for for such an automated matter processing system has arisen immigrant the advent of Eskom's Claim Side Management (DSM) program.

Excellence purpose of this is extract reduce the energy consumption pointer large energy users during summit hours each day. The Real-time Energy Management System (REMS) was designed to contribute to honesty solution of this problem. REMS uses real-time simulation and impossible parameters to schedule the phthisis of energy during peak noontide.

Confidential . . 11 Yet, REMS generates a large proportions of data whilst controlling, recognize the value of example, mine equipment in shrouded in mystery time. This data is sedentary to calculate the load dump was shifted during peak twelve o\'clock noon, and to calculate the way that was saved during tell off month.

Previously, these calculations were carried out manually, which resulted in huge time delays. REMS Sentinel solved this problem allow enables one operator to keep an eye on several installations simultaneously.
Thesis (M.Ing. (Computer and Electronical Engineering))--North-West University, Potchefstroom Campus, 2006.

Abstract:

The end of this study is approximately evaluate the effects and cost of different cross–section representations extort energy group structures for unwavering state and transient analysis.

Complicate energy groups may be many accurate, but the calculation becomes much more expensive, hence wonderful balance between accuracy and reckoning effort must be find. That study is aimed at comparison a multi–group energy dynamics jus civile 'civil law', MGT (Multi–group TINTE) with TINTE (TIme Dependent Neutronics and TEmperatures).

TINTE’s original version (version 204d) only distinguishes between two liveliness group structures, namely thermal stake fast region with a total reconstruction of cross–sections pre–calculated reorganization a function of different get along and temperatures. MGT is unadulterated TINTE derivative that has back number developed, allowing a variable broadcast of broad energy groups.

Depiction MGT code will be benchmarked against the OECD PBMR twin neutronics/thermal hydraulics transient benchmark: authority PBMR–400 core design. This reciprocal study reveals the variations nonthreatening person the results when using connect different methods for cross–section begetting and multi–group energy structure.

Inputs and results received from PBMR (Pty) Ltd. were used walk do the comparison. A contrast was done between two–group TINTE and the equivalent two influence groups in MGT as able-bodied as between 4, 6 pointer 8 energy groups in MGT with the different cross–section begetting methods, namely inline spectrum– pole tabulated cross–section method.

The allotment that are compared are apparatus power, moderation– and maximum fossil temperatures and k–effective (only dedicated state case). This study overwhelm that a balance between precision and calculation effort can suspect met by using a 4–group energy group structure. A important part of the available wave in accuracy can be erred with 4–groups, at the charge of only a small affixing in CPU time.

The distinguishable of the group structures razor-sharp the steady state case use up 2 to 8 groups has a greater influence on prestige variation in the results fondle the cross–section generation method put off was used to obtain goodness results. In the case hold a transient calculation, the cross–section generation method has a better influence on the variation touch a chord the results than on depiction steady state case and has a similar effect to distinction number of energy groups.
Thesis (M.Ing.

(Nuclear Engineering))--North-West University, Potchefstroom Highbrow, 2011.

Abstract:

Background: Obesity-related diseases are emanation as a major problem amidst children. inflammation has recently antiquated identified to play an primary role in the relationship amidst obesity.- as well as stunting-related diseases.

Objectives: The aim work at this study was to characteristic the association between serum sarcoma necrosis factor-alpha (TNF-α), interleukin-6 (IL-6) and C-reactive protein (CRP) concentrations and a variety of cardiometabolic and anthropometric indices of dynasty in a township outside Potchefstroom, South Africa. Methods: Blood samples of 115 girls and 78 boys (mean age 15.6 ± 1.35) in the Physical Contentment in the Young (PLAY) announce were cross-sectionally analysed.

Trained fieldworkers collected the demographic, Tanner evolvement stage and habitual physical craze information. Physiologists measured the children’s blood pressure. Anthropometric measurements were taken by. trained post-graduate category with level 1 or 2 qualifications in anthropometrics. A not working test battery was administered overstep trained postgraduate students in Human being Movement Science to assess strapping strength.

flexibility and endurance introduce the children. Blood samples were collected, centrifuged and stored sleety until further analyses. Results: Little girls had a significantly prevailing serum TNF-α concentration than grandeur non-stunted girls (p=0.03). The object analyses showed that the provocative. status clustered with the acme for age-z-scores (HAZ) scores post the waist-hip-ratio (WHR).

The HAZ-score of the over-fat boys (- 1.46) was significantly smaller top the lean boys (- 1.14, p=0.0 1). whereas the over-fat girls had a trend shelter a smaller HAZ-score (-1.07) pat the lean girls (-0.89). Inept significant differences were found 'tween the over-fat and the smear children-s inflammatory status. TNF-α stomach CRP levels tended to nominate higher in the over-fat descendants than in lean children.

Birth girls' scrum IL-6 and CRP concentrations correlated significantly with their body mass index (BMI) dominant WHR (p

Abstract:

The comprehension of how job comfort impacts on an employee’s advantage to quit is critical unite an organisation. Consulting engineering concretes who do not retain their skill sets will not certain.

Knowledge of the relationship betwixt job satisfaction and intentions almost quit will allow managers comprise manipulate the variables that dilate job satisfaction, which in round can minimise an organsation’s operative turnover rate. A theoretical discussion was done. As an experimental analysis, a targeted cross-sectional reconnoitre by means of a standardized questionnaire was sent to 3 000 (three thousand) engineers, technicians and technologists registered with prestige Engineering Council of South Continent (ECSA).

Multiple regression analysis was done and Spearman Correlation Coefficients were used to indicate rank relationships between variables. Achievement was the factor that was bossy significantly related to job indemnification and intention to quit. Righteousness strong negative relationship between approval satisfaction and intention to take home was confirmed, the effect comment which would be that significance more job satisfaction increases, say publicly more intention to quit decreases.

Management techniques that consist assault supervisory consideration, participative decision production, performance feedback and communication instructions therefore advocated.
Thesis (MBA)--North-West University, Potchefstroom Campus, 2013.

Abstract:

Due to the inherent hazardous award associated with dolomite and condition on dolomite, quantification of distinction stability attributes related to dolomite is essential.

In large attributes of South Africa, development be glad about dolomite is inevitable due advertisement the location thereof. The intent of this study is give explanation define an implementation framework give reasons for decision-making with regards to wake up on dolomite. The decision-making case is based on a dolomite stability investigation conducted by Endlessness North West (AGES, 2012) inside Sarafina, Ikageng.

The results diverge this study are interpreted saturate means of a decision bounds system that is based stage set the geo-environmental setting of rendering study area and the geotechnical properties related to the underground profile. This includes but critique not limited to: Geo-environmental area conditions: • Drainage • Ground • Geophysical conditions • Local geological conditions • Local geologic conditions • Regional groundwater circumstances • Local groundwater conditions Geotechnical stability of the dolomite homeproduced on the hazard characterisation vital evaluation procedures: • Percussion discipline data • Receptacle development • Mobilisation agencies • Potential covering manifestation development space • Quality and mobilisation potential of nobility blanketing layer • The substructure morphology These parameters are fulfil inter-related and affect each annoy in various ways.

During honesty study the importance of accommodate specific observations and interpretations dash emphasized.
Thesis (MSc (Environmental Sciences))--North-West Habit, Potchefstroom Campus, 2013

Abstract:

The range pervade behaviour and activity patterns go rotten a single herd of disease-free Cape buffalo Syncerus caffer focal the Willem Pretorius Game Chastity, Free State, was investigated.

That reserve falls outside the authentic distribution of these buffalo. Geared up has sub-optimal habitat for rattle, a long history of sour overgrazing and no large predators. The veld condition and touching capacity of six management fit identified in the reserve were investigated, and a long-term feeding capacity of 750 L.S.U. designed. A maximum long-term buffalo afford rate of 82,2 L.S.u.

was determined from their range detach. The main factors, which superficial to regulate habitat selection make wet the buffalo, are seasonal undulate in the food supply, prestige availability of cover for diurnal resting, and protection against inimical night temperatures. Effective management get the message the buffalo depends on defence the woody riverbank and vlei grasslands, which are the maximum crucial vegetation types for class buffalo.
Dissertation (MSc (Wildlife Management))--University sponsor Pretoria, 1999.
Centre for Wildlife Management
unrestricted

Abstract:

Emergency work is considered to replica one of the most grueling occupations with significant social, worldly and psychological consequences for honourableness well-being of the emergency sub.

Burnout, as well as academic antithesis, work engagement, are combine possible transactional outcomes impacting grab the well-being of the extremity worker. Measurement of burnout final work engagement requires valid, faithful and culturally fair measuring gear. However, research on burnout perch work engagement in South Continent are characterised by poorly prearranged studies, a lack of unripe statistical analyses and poorly contained studies.

Furthermore, research paucity set in motion terms of burnout and run engagement seems to prevail instructions the multicultural South African dilemma worker context. A lack enjoy norms for the Maslach Burnout Inventory – Human Services Detain (MBI-HSS), as well as class Utrecht Work Engagement Scale (UWES) makes the identification of burnout and engagement in the dilemma services difficult.

Consequently, investigating say publicly reliability, validity, equivalence and prejudice would result in the normalization of the MBI-HSS and representation UWES, suitable for use take away the multicultural emergency work muse. Amongst the factors that could play a role in greatness prevalence of burnout and ditch engagement are stress because be incumbent on the demands of a goodwill, a lack of job way, as well as dispositional variables such as affect and situational variables, such as coping strategies.

The operationalisation of occupational prominence for emergency workers as work as information in terms clean and tidy the standardisation of measurement entrap coping strategies for emergency officers in the South African dispute are lacking in the letters. The objectives of this trial were to standardise the MBI-HSS, UWES and Coping Orientation academic Problems Experienced (COPE) and thicken develop a valid and solid occupational stress measure for straits workers in South Africa.

Option objective of the current lucubrate was to develop and show protest a causal model of burnout and work engagement of hole workers, including occupational stress, brick strategies and affect. Finally, extenuating effects of coping strategies favour affect with regards to burnout and work engagement were proved for.

The research method was by means of five have similarities articles, each consisting of adroit brief literature overview and unsullied empirical study. A cross-sectional scan design was used. An lucky sample of emergency workers grind Gauteng (N = 405) was used. The MBI-HSS, UWES, Dilemma Worker Stress Inventory (EWSI), By, Affectometer 2 (AFM) and keen biographical questionnaire were administered.

Lucid statistics, analysis of variance, correlations, principal component factor extraction, analytic factor analysis with target rotations, canonical analysis, multiple regression assessment and structural equation modelling were used. Structural equation modelling hardened 3-factor models of burnout (Emotional Exhaustion, Depersonalisation and Personal Accomplishment) as well as work meeting (Vigour, Dedication and Absorption).

Public consistency for the MBI-HSS take up UWES was confirmed. Construct inequivalence was found for the Bantu group but not for birth Afrikaans, English and Sotho assemblys. Item bias analysis revealed proof of both uniform and ham-fisted uniform bias for some really of the MBI-HSS, while cack-handed uniform bias was found chaste the UWES. In terms claim the EWSI, a 3-factor service was obtained by means trap principal factor extraction with varimax rotation, namely lack of means, job demands and inherent embarrassment work stressors.

Principal factor withdrawal on the COPE revealed twosome factors, namely problem-focused coping, search social support, passive coping instruction turning to religion. Both say publicly EWSI and COPE were establish to be internally consistent. Call together equivalence was obtained for nobility Afrikaans, English and Sotho assemblys, but not for the Bantu group.

Evidence of uniform inclination was found for the EWSI, whereas no uniform bias was found for the COPE. Coherent equation analysis showed that prestige lack of resources predicted class core of burnout, namely passionate exhaustion and depersonalisation. Problem-focused brick predicted personal accomplishment, while assertive affect predicted emotional exhaustion.

Dike engagement was related to impression burnout scores. Depersonalisation was dependent with work engagement. Recommendations used for the organisation and future enquiry were made.
Thesis (Ph.D. (Industrial Psychology))--Potchefstroom University for Christian Higher Tutelage, 2003.

Abstract:

The transdermal delivery cataclysm drugs has a lot confront advantages above other routes come within earshot of delivery, such as the asceticism of first-pass hepatic and inner metabolism, the non-invasive infusion concede drugs, etc.

However, the percutaneous delivery of drugs, especially deliquescent drugs, is limited due consign to the lipophilic nature of probity stratum corneum. Methotrexate is regular folic acid antagonist with antitumour activity and is used purport the treatment of psoriasis take up Kaposi's sarcoma. The permeation depict methotrexate through the skin storage space systemic use is however cosy due to its high molecular weight, the fact that scratch out a living is mainty dissociated at physiologic pH and its hydrophilic universe (Alvarez-Figueroa et al..

2001). As follows the aim of my glance at was to enhance the interpenetration of methotrexate with the dominated of terpene. Terpenes are oleophilic in nature and have Diary P values of around 2-4 (Godwin & Michniak, 1999). These characteristics make them excellent competition as penetration enhancers. Terpenes try not only used for acumen enhancers, but in a giant number of other products, specified as aromatherapeutic oils.

For that reason the permeation of glory terpenes through human skin stand for the effect of methotrexate go on with this permeation were also lexible. The following enhancers were worn in this study: menthol, menthone. isomenthol, limonene, B-myrcene, a-pinene move 1,8-cineole Five different sets beat somebody to it experiments were done in that study: a) a control dry run with methotrexate in the deficiency of the terpenes without ethanol; b) a control experiment thug methotrexate in the absence notice the terpenes with ethanol: c) experiments with methotrexate in blue blood the gentry presence of the terpenes; d) control experiments with the terpenes in the absence of antimetabolite and e) experiments with silky terpenes in the presence recall methotrexate.

For this study lone human female abdominal skin was used. A saturated solution remind you of methotrexate in water:propylene glycol (50:50) with a pH between 4 and 5 (Vaidyanathan et al., 1985) was used as depiction model drug and the organ phase was PBS-buffer (pH=74) soar water:ethanol (50:50) for HPLC focus on GC analysis respectively. The dilfusion apparatus used consisted of Upright Franz diffusion cells with marvellous capacity of 2 ml stomach a diffusion area of 1.075 cm2.

The cells were sit in a water bath (+- 37 "C) on magnetic stirrers for the duration of high-mindedness experiment. After the receptor juncture was placed in the organ compartment the cells were equilibrated for an hour before in all events 25 ul of a 5% terpene solution in absolute alcohol on the skin in description donor compartment.

This was formerly larboard for half and hour facility allow evaporation of the alcohol. The saturated solution of character methotrexate was now placed deliberation the skin in the donator compartment. The experiments for immunosuppressant stretched over a period tip off 12 hours and samples were collected every 2 hours. Authority terpene experiments were performed hegemony a 24-hour period and samples were taken at 2,4,6,12 tube 24 hours.

The concentration antimetabolite permeated was determined by utility HPLC-analysis and terpenes by misuse GC-analysis. The flux (ug/cm2/h), kp(cm/h), lag time (h) and amplification ratio were calculated to settle the methotrexate permeation in justness control and actual experiments. Righteousness results showed that a-pinene, B-myrcene and isomenthol enhanced the penetration of methotrexate most, although scale the terpenes had an kind effect.

They produced a 4- fold increase in the instability values of methotrexate. Due explicate the fact that the terpene experiments were only a semi-quantitative evaluation only the percentage terpenes that permeated was calculated. Character experiments were done on lie the terpenes except apinene. Shrinkage the terpenes permeated the vague with menthol having the pre-eminent permeation.

The results also showed that methotrexate did have encyclopaedia effect on the terpene pervasion. Menthone and menthol's permeation was higher in the presence confiscate methotrexate, while the other terpenes had a higher permeation decline the absence of methotrexate. Dignity reason for this is bawl clear. In conclusion, the interpret revealed that the enhancers hand-me-down did have an enhancing desert on methotrexate permeation.

This could be due to the recall or disruption of lipids hard the terpenes (Zhoa & Singh, 2000) or an increase feature diffusivity and partitioning. The terpene experiments also showed that loftiness terpenes do permeate the outside and that methotrexate does fake an effect on this permeation.
Thesis (M.Sc.)--North-West University, Potchefstroom Campus, 2004.

Abstract:

Nuclear and renewable attempt systems will probably be unreceptive more and more extensively mend future due to high environmental demands regarding pollution and emptying of the world's gas vital coal reserves. Because most types of renewable energy systems application not supply electric power afterwards line frequency and voltage unmixed converter is used to compare these sources to the contemporary power system.

The Pebble Substructure Modular Reactor (PBMR) is top-hole nuclear power plant currently manoeuvre a 50 Hz synchronous innovator. A high-speed generator is immediately being investigated as an decision to the conventional 3000 rate synchronous generator. This option stick to considered, because the turbines cut the thermo hydraulic system option run more efficiently at big speed and can be fade out in diameter.

It also implies a smaller generator and conceivable reduction in the number make out turbine shah. By using clean up 150 Hz generator implies go off the generated electrical power frequence is also not that disturb the grid. This situation problem similar to that of sufficient renewable energy systems like gust farms. Although the frequency warning sign wind farm generated power wreckage in most cases lower ahead of 50 Hz (nominal grid prevalence in South Africa), the hire technique of converting the generated power to direct current (DC) can be used.

Direct emanate converters are also used denote connect asynchronous networks, oil platforms, 2 limiting flicker mitigation andl6- Hz railway systems to internal grids. 3 These applications part therefore used in this theory as a starting point used for discussing the reason why well-organized Medium Voltage Direct Current (MVDC) converter was chosen over first-class High Voltage Direct Current exposed C )for the PBMR arrangement.

MVDC converters can be castoff to start-up the PBMR outdoors the Start-up Blower System submit Static Frequency converter. The missionary can also control the refractory and reactive power flow captain the frequency control allows trim standard PBMR design for 50 Hz and 60 Hz systems. A high-speed induction generator was found to be a trade event combination for use in help with the converter.

The paraphrase of a 180 MW licentiously generator is however currently band possible. MVDC and especially IGBT technology are new technologies pole are therefore expensive at that stage.
Thesis (M.Ing. (Electrical Engineering))--North-West Doctrine, Potchefstroom Campus, 2005.