This thesis intends to demonstrate why commercial surrogacy is not morally justifiable. In order to display the implication of the aim, a normative argumentative method is applied. In the analysis, arguments, and possible counter-arguments of ethical issues of exploitation, commodification, individual freedom and estranged labor in context to surrogacy arrangements is outlined. To strengthen the content of the arguments presented the concept of exploitation, commodification together with the harm principle and the Marxian framework of estranged labor will act as the theoretical framework of the thesis. In the analysis, it is shown that global economic inequalities, and social structures of class and gender make the practice of surrogacy exploitative per se and that the surrogate becomes objectified as she as a person and her body is treated as a commodity. Based on these factors, it is concluded that surrogacy cannot be morally justified.

This study analyses the faunal remains of four Iron Age sites from eastern Botswana, namely Phoenix 17, Phoenix 18, Thabadimasego and Dukwe 25. Phoenix 17, Phoenix 18 and Thabadimasego date to the 9th century AD, and Dukwe 25 to the 15th century AD. The sites are significant as they date to critical time periods during which we see shifts in the socio-political organisation, towards increasing social complexity in the 9th century AD, and the establishment of powerful states in the 15th century AD. By comparing the results of Phoenix 17, Phoenix 18, Thabadimasego and Dukwe 25, it will also be possible to examine whether these sites point to regional, chronological or socio-cultural variability. Other sites in eastern Botswana together with the sites in this study, can give broad understanding into animal exploitation patterns during these time periods, specifically the relative use, social use and exploitation of animals. Understanding animal exploitation patterns can assist researchers in exploring the impact these communities had on their environment. In particular, how they reacted and responded to diverse environments, rich in wild fauna, such as the Makgadikgadi. / Dissertation (MA)--University of Pretoria, 2016. / Anthropology and Archaeology / MA / Unrestricted

Public research institutions (PRIs) are tasked with generating new knowledge, as well as adding value to existing knowledge in order to come up with innovations that can contribute to national competitiveness. To this end, government provides discretionary or parliamentary grants to allow the public research institutions to execute their mandates by carrying out exploratory activities and exploitative activities in research and development.The study aimed to establish the role of the parliamentary grant in supporting the research and development endeavours of a public research institute, with a particular focus on the management of exploration and exploitation tensions in investing the parliamentary grant. The sustainability of the PRI was sus assessed using operating profits as a proxy. The relationships between levels of investment in exploratory and exploitative actives were assessed, as was the role of the innovation system in influencing the sustainability of the PRI. We use the Council for Scientific and Industrial Research (CSIR) the largest scientific research entity in South Africa, and its operational units as a case study.Consistent with information that is available in the literature, the data from this study shows that the discretionary grant plays a critical role as a funding stream for public research institutes, contributing to the effective execution of research and development activities of the entity. The discretionary grant is key in seeding new national competencies, and is a key initial investment in enabling the PRI to establish itself, generate outputs and outcomes that herald its competencies and thus position itself to earn other forms of income.The discretionary grant is invested for exploratory and exploitive activities. Exploratory activities generate new knowledge, which is necessary for competitiveness. Exploitative activities utilise existing knowledge to provide innovations that find utility in industries and the public sector. The manner in which the investment is split between exploration and exploitation was shown to be critical to the long term sustainability of the enterprise. Skewing investment in either exploration or exploitation alone is detrimental to sustainability.The optimal split of the discretionary grant between exploration and exploitation was found to be dependent on several factors, to include, the technology bases of the industries in which the entity operates and the connectivity and paths of knowledge flow in the innovation systems nationally and globally.Inability to earn other forms of income is in itself a threat to the long term sustainability, particularly in fiscally constrained environments that are typical of emerging economies. The ability to earn external income provides options for investment of the PG in building its capability base. Notable here is the fact that the absorptive capacity of the industry sector in the first place, the innovation system in which the entity operates and the connectedness of the entity within the system appear to have important influences on ability to earn other forms of income. In such cases, strategic decisions have to be made on whether the sector remains strategic enough for the country in deciding on continued investment.While the information derived from this study is very specific to the CSIR, a combination of the data and information in the literature provides insights that are applicable to other public research institutes, particularly in developing economies. / Dissertation (MBA)--University of Pretoria, 2012. / Gordon Institute of Business Science (GIBS) / unrestricted

Environmental art: Art relating to the individual’s response, understanding and interest towards the land, including art forms such as Land/Earth art as well as more sensitive art forms such as Eco-art, focussed more on the earth’s natural processes. Exploitation: The exploitation of mineral resources is closely associated with progress and success, but also that of benefiting from something at the cost of something else, in this case exploiting gold at the cost of the ecology of the natural environment. Gold mining industry: The labour-intensive activity of removing gold from ore, mined from deep within the earth’s crust through a system of shafts and stopes. Installation art: Refers to what is contested as being a medium or process of art, whereby three-dimensional works are designed to influence the perception of a space, often site-specific, within an enclosed space or the outside environment, temporary or permanent. The found object or existing object is often used in installation art for its intellectual value. Inter-and-trans-disciplinary approach: The utilisation and collaboration of different disciplines as a means to find a solution to a (environmental) problem. Landscape: A cultural construct, referring not to physical topography, but to an aesthetically processed vision of the environment, mostly arranged and framed by an artist. Post-industrial environment: Referring to an environment, man-made or natural in a state preceded by industry. Often these environments are characterised as polluted and derelicts sites left behind by large mining industries. The gold-mining industry on the Witwatersrand, is characterised by massive tailings dumps and slimes dams. Resource curse: A term coined by artist Jeannette Unite, describing the phenomenon of extreme poverty co-existing with valuable minerals in the same region, especially prevalent in Africa. Technospasm: A term conceptualised by archeo-metallurgist Duncan Miller, as the unsustainable rate of non-renewable mineral resources extraction. South Africa is known to the world for its vast deposits of valuable minerals, of which gold has played a seminal role in the development of the country’s economy. What is left after more than 120 years of mining for this precious metal is a landscape, better described as a derelict post-industrial environment, characterised by pollution and impoverished communities. Environmental degradation caused by mining industries is not unique to the African continent, but is a worldwide phenomenon. Due to the rapid deterioration of environments caused by mining and industry, new environmentalist attitudes became prevalent by the 1970s in the West, seeking change in attitudes towards the land. Along with earth activists, artists also started to question humankind’s destructive relationship towards the land. Apart from the early developments of Land/Earth art during the 1960s, artists have taken on roles of activists, interventionists and collaborators of multi- and interdisciplinary projects since then, in order to remediate and re-cultivate post-industrial sites. Environmental artists find value in what art holistically contributes to society, as opposed to the commodity value of art. While artists in the West significantly progressed in environmentally orientated art, South African artists focused more on responding to the socio-economic conditions induced by the long-standing Apartheid era. Few South African artists have attempted to engage in environmentally-concerned art, especially related to the mining industry. However, Western attitudes towards the land can be derived from South Africa’s landscape depictions since its colonisation by Europeans up to contemporary versions of the South African landscape environment today. This study provides a historic overview of South Africa’s aesthetic relationship with the mining landscape, specifically of the post-industrial sites situated in the Witwatersrand. The aim is to determine the South African artists’ contribution towards developing an environmental awareness, and to call for more artists to take part in visual art forms concerning the disruption of the environment, caused by the mining industry. The study determines the relevance of art as a means to raise environmental issues and whether art may be utilised for post-industrial remediation projects. International examples of Reclamation art projects and its incorporation of science are investigated to find solutions towards contaminated post-industrial sites. These examples are compared to the work of a small number of South African artists who have attempted to engage in the post-industrial mining environment through Earthworks and science The researcher’s own work is discussed to raise awareness of the adverse effects of Acid Mine Drainage (AMD) caused by the gold-mining industry in the Witwatersrand. A body of installation art produced for this degree was displayed in a gallery space, which presented a platform for audience engagement. Through this body of work and through the examples discussed in this dissertation, the researcher urges South African artists to take up the task of moral responsibility towards the environment for the survival of future generations of life on earth. / Dissertation (MA)--University of Pretoria, 2012. / Visual Arts / unrestricted

Ambidextrous organizations are more successful as they manage to balance exploitative and explorative innovation. Organizations performance depend on the people both within the respective firm and externally, how the firm’s offerings are received. In order to stay relevant and competitive in a continuously changing environment the need for ambidextrous behavior becomes constant. The ability to handle, or at best anticipate, upcoming opportunities or set- backs to co-ordinate and combine exploitative and explorative innovations is a competitive advantage. As leadership drives performance – this puts both focus and expectations on leaders. The aim of this study was to explore ambidextrous leadership from a holistic view and more specifically; what triggers ambidextrous needs, how can ambidexterity be enabled and cultivated. Literature on ambidexterity comes in various approaches, where studies holding a holistic approach are few. Bridging the theories on ambidextrous needs with those on leadership and contrasting them to findings from this qualitative study based on semi-structured interviews. The conclusions indicated both theoretical evidence but also contradictory findings. The need for ambidexterity is unison, however, where literature focus on the paradoxical tension of managing both exploitative and explorative innovation, this is not an option for the leaders. Change is their reality having to be handled holistically. Predominantly digitalisation, globalisation and pace of change require firms’ ambidextrous initiatives in a perpetual cyclical movement through the dimensions of drive, lead and learn. Furthermore, there are additional parameters emerging as key for facilitating ambidexterity: as the impact of culture, communication and external monitoring alertness are highlighted.

Background: Since quick change is one of the most distinguishing qualities of today's market, organizations must be able to cope with it and match markets by keeping up with new market trends and wants, as well as adapting to changes in market features. This can be achieved by pursuing both exploration and exploitation to ensure success in the short and long term. Since this is the case, it is vital that companies find the right balance between operation and innovation to be able to exploit present opportunities and explore future directions. Purpose: This research aims to study the role of ambidexterity in achieving the desired balance in different industries. Every organization is unique, and companies differ from each other in many ways such as; work system, organizational structure, work philosophy and size. This study discussed the issue of balancing innovation and operation, to evaluate the process of choosing the right ambidextrous approach to be followed by different organizations across different industries. Method: Multiple case study was used. Data collected had both primary and secondary sources where the primary sources were collected through semi-structured interviews and the secondary sources were archives and reports. Grounded analysis was used in the analysis process to conclude the theory. Conclusion: The research results showed that when organizations achieve ambidexterity by following one of the ambidexterity approaches, the choice of the right approach depends on certain factors on different levels that need to be considered, and the four tensions of ambidexterity differ from one approach to another. Hence, the tensions should be verified and handled in relevance to the followed ambidexterity approach.

<p style="text-align: justify;">U okviru disertacije je na osnovu teorijske i&nbsp;empirijske analize i kori&scaron;ćenjem podataka iz<br />eksploatacije, formiran model pouzdanosti&nbsp;koji će doprineti povećanju pouzdanosti i<br />sigurnosti funkcionisanja dizel motora u&nbsp;procesu eksploatacije.</p> / <p>Within this dissertation, on the basis of&nbsp;theoretical and empirical analysis and usage of<br />exploitation data, a reliability model was formed&nbsp;that will contribute to reliability increase and&nbsp;safety of diesel engine operation in the&nbsp;exploitation process.</p>

This research was designed to investigate cougar response to urbanization, habitat fragmentation, and exploitation from behavioral, demographic, and landscape perspectives. The source-sink model has been proposed as an alternative framework for the management of exploited cougar populations. I addressed the basic question of whether cougars conform behaviorally to the predictions of the source-sink model, and consequently, the applied question of whether the model could be used for the conservation of this species. To achieve this I evaluated three scale-specific questions using radio-telemetry and hunter-harvest data collected from 1996-2010. At the subpopulation scale, I tested the hypothesis that cougars are wildland obligates by measuring cougar response to a suite of anthropogenic land uses. At the meso scale I compared cougar dispersal patterns from two populations under different management. Lastly, at the statewide scale I examined the distribution of human-induced de facto refugia and ecological traps in relation to the species range within Utah. Cougars show a strong proclivity for wildland over rural or suburban habitats, but all cougars used anthropogenic landscapes to some degree, and appear capable of surviving in highly disturbed, human-impacted environments. Cougar dispersal was correlated with maternal estrus; once young animals emigrated, natural and anthropogenic barriers directed movement into habitats marked by frequent human-caused mortality, with females selecting areas of lower conspecific density relative to males. Anthropogenic cougar mortality was disproportionately distributed in accessible, high quality habitats within the core of the species statewide range. Conversely, ecological traps were primarily situated within marginal habitats in remote settings on the periphery of the range. The source-sink model predicts that subordinate animals from saturated populations disperse to habitat with the highest suitability. Cougars of both sexes display behaviors that largely conform to these predictions. Based on the patchy but predictable distribution of cougar exploitation, Utah may already have a quasi source-sink system, which could be formalized through management action. In general, cougars are adaptable, behaviorally plastic, generalist carnivores, and as such defy broad habitat generalizations. These investigations have implications for sustainable hunting and long-term conservation of cougars in the multiple-use landscapes of the Intermountain West.

Le phénomène grandissant de morcèlement des forêts boréales matures est une source de préoccupation importante pour l'industrie forestière du Québec en raison de l'augmentation des coûts d'approvisionnement qu'il induit. Effectivement, les déplacements de machinerie plus fréquents ainsi que l'augmentation du nombre de chemins à aménager impactent la rentabilité des opérations forestières en forêt morcelée. L'évolution de ce contexte impose la recherche de solutions, incluant l'adaptation des systèmes de récolte utilisés, qui n'ont que très peu été étudiées à ce jour. Le principal objectif de cette maîtrise est d'identifier des systèmes adaptés à la récolte de forêts morcelées, permettant d'amoindrir l'impact financier du morcellement sur l'approvisionnement. Toutes les alternatives possibles se doivent d'être considérées dans la réflexion menant à l'implantation de solutions en forêt. Une approche de sélection employant des analyses successives fut préconisée, de manière à sélectionner itérativement un sous-ensemble de solutions potentielles. Dans un premier temps, une revue exhaustive des systèmes de récolte permit d'en décrire plus de 1 000 différents. De ce nombre, vingt-huit furent retenus pour leur potentiel d'application en forêt morcelée. Ceux-ci furent comparés à l'aide d'un modèle d'évaluation multicritère impliquant des experts. Sept systèmes se démarquèrent des autres, mettant en évidence l'intérêt de considérer l'implantation de systèmes actuellement inexistants au Québec. Une simulation déterministe fut réalisée afin d'estimer les coûts des solutions potentielles et ainsi affiner l'identification de la meilleure alternative. Les résultats démontrent le potentiel du système de bois tronçonnés utilisant des camions auto-chargeurs à grue détachable en contexte de forêt morcelée. L'utilisation du porteur pour charger les camions est également une alternative intéressante, notamment pour la simplicité de son adaptation par rapport au système de bois tronçonnés classique. Il serait à présent intéressant de tester ces systèmes dans un contexte opérationnel contrôlé avant d'en proposer un déploiement à plus grande échelle. / Fragmentation in mature boreal forests is a growing concern for the forest industry of Quebec, due to the increase of wood procurement costs. The more frequent machine relocations and the increasing number of roads to build and maintain compromise the profitability of fragmented operations. This changing reality needs to be addressed, starting with re-evaluating the current operational systems used in fragmented forests, which have received little attention so far. The objective of this master's degree is to identify the most cost-effective harvest systems in fragmented forests. Doing so requires a methodology compatible with the evaluation of a very wide range of potential solutions that can be implemented in these forests. The elaborated approach is based on subsequent analysis gradually reducing the number of alternatives and precising the identification of the best subset. First, an in-depth review of harvest systems resulted in the description of over 1,000 distinct alternatives. Only twenty-eight were considered as conceivable alternatives in the studied context. A multi-criteria evaluation approach involving experts from the forest industry revealed the superiority of seven potential solutions. Lastly, a deterministic simulation model was developed to estimate the harvest costs associated with each system in case studies and narrow down the selection of the best alternative. The results demonstrate the potential of the cross-cut timber system using self-loading trucks with detachable cranes in a fragmented forest context. Of the seven systems, the cut-to-length systems using either removable crane self-loader trucks or forwarders to load trucks presented lower costs in fragmented forest stands. It would now be interesting to test these systems in a controlled operational context before considering large-scale implementation.

Organizations that can successfully develop both radical and incremental innovations positively impact sustained competitive advantage, dramatically improving their chances of survival and success in both dynamic and stable environments (Han et al. 2001; Tushman and O'Reilly 1996). Experimentation and radical innovation are mandatory knowledge assets for competitive play in emerging markets, but efficiency and incremental innovation are essential for mature markets (He and Wong 2004; Tushman and O'Reilly 1996). The attainment of dual focus between radical and incremental innovation is challenging and calls for organizational architectures of sometimes conflicting processes, structure, and culture (cf, Tushman and O'Reilly 1996; Wind and Mahajan 1997). While prior research has investigated the structural and cultural determinants (Duncan 1976; Gibson and Birkenshaw 2004), there is a significant lack of research addressing the third major element of business processes. Without winning business processes in place that influence both exploration and exploitation, a successful portfolio mix of radical and incremental product innovations that maximize customer value and benefits will not be fully realized, and firm performance will suffer. Through core business processes, marketing's role and influence is significant in increasing customer value creation in the resulting product innovations. By mapping the "inside-out" and "outside-in" processes of a market-driven organization (Day 1994) into the Srivastava et al. (1999) core business process framework, this dissertation develops and tests a model of business process influence on dual focus in innovation strategies in the context of the high technology manufacturing environment. Each of these processes is critical in generating maximum customer value and is an explicit input into strategic choices and decisions (Srivastava et al. 1999). Specifically, it is argued and proposed that the Product Development Management (PDM) process, comprised of the processes of market experimentation, technology monitoring, and technology competence, predominantly influences exploration while the Supply Chain Management (SCM) process, comprised of the processes of channel bonding and quality process management, predominantly influences exploitation. The Customer Relationship Management (CRM) process, encompassing the processes of lead user collaboration, competitor benchmarking, and current customer knowledge process, acts as a moderator to add dual focus to these extremes by interacting with PDM processes to enhance exploitation and with SCM processes to enhance exploration. Furthermore, it is proposed that firms successfully achieving a dual focus have greater firm performance than firms entrenched in either extreme. Hypotheses were tested with data collected from a nationwide sample of high technology manufacturers. The results largely supported the main effect hypotheses of the PDM processes and SCM processes on exploration and exploitation. Additionally, the hypothesis of a positive interaction between exploration and exploitation on firm performance was also supported, however no visible support was garnered for the moderating impacts of CRM processes on PDM and SCM processes as hypothesized. Post hoc analyses were performed, bringing additional insight into dual focus based on the successful implementation of opposing businesses processes. Specifically, dual focus firms were shown to have multiple processes in place that impact both types of innovation strategies and that these firms implement these processes to a greater extent than those firms operating in the more extreme positions. Academic and managerial implications are discussed, as well as study limitations and exciting future research directions.