Teses / dissertações sobre o tema "System relationships"
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1
Bergman, Jenny, Cristina Knudsen e Kate Seely. "Building Collaborative Relationships for a Sustainable Finance System". Thesis, Blekinge Tekniska Högskola, Institutionen för strategisk hållbar utveckling, 2014. http://urn.kb.se/resolve?urn=urn:nbn:se:bth-3123.
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Society today faces unprecedented social and environmental challenges that are both complex in nature and require immediate and severe action. The financial system is a complex system that has an important impact on the sustainable development of society. Currently, however, the role of the finance system in sustainability is ambivalent, as it invests both in the causes of the sustainability challenge as well as its potential solutions. As the finance system is a complex system collaboration is needed to make change possible. Relationships are a key component of collaboration, and this research looks closer at how relationship building can enable effective collaboration aimed at finance systems change. Research draws on Literature, and a case study of the Finance Innovation Lab including 19 qualitative interviews. In order to build collaborative relationships for a sustainable finance system the results point to: 1) the importance of the individual being present in the initiative rather than the organization they represent, and the importance of connecting on personal level; 2) the complexity of relationship building, with different processes and key elements interrelating; and 3) collaborative relationships being only one part of systemic transformation, requiring also a diversity of people and a clear structure and common strategy to be effective in achieving their goals.
2
Maziejka, Stanley W. "Future system leadership". Connect to resource online, 2009. http://library2.sage.edu/archive/thesis/ED/2009maziejka_s.pdf.
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Thesis (E.Ed.)--The Sage Colleges, 2009."A Doctoral Research Project presented to Associate Professor Daniel Alemu, Doctoral Research Committee Chair, School of Education, Sage Graduate School." Suggested keywords: superintendent shortage; job satisfaction; leadership capacity; pathways to leadership; knowledge of superintendency; mentoring. Includes bibliographical references: (p. 67-71).
3
Erixon, Cecilia. "Information System Providers and Business Relationships : A Study on the Impact of Connections". Doctoral thesis, Mälardalens högskola, Akademin för hållbar samhälls- och teknikutveckling, 2012. http://urn.kb.se/resolve?urn=urn:nbn:se:mdh:diva-14508.
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Information systems are integrated in the daily business of companies, to support the exchanges with its counterparts. To manage these information systems, companies often turn to third parties: information system providers (IS-providers). IS-providers have competences that the companies become dependent on and they are therefore important for maintaining the company’s business performance. The companies develop dependencies on their information systems and thereby also on their IS-providers. This thesis studies the connection between a company’s relationships with IS-providers and its other business relationships. A single case study of how a focal company’s IS-providers impact the company’s customer relationships is conducted. The applied analytical framework combines an information system’s perspective and a business relationship perspective. The analytical level is guided by the concept of connection, which has its origin in the business relationship perspective. The information system’s perspective illustrates the characteristics of the information systems that the IS-providers manage. The business relationship perspective studies each business relationship as unique, originating in different exchanges and behaviour. The single case study involves five customer relationships and four IS-provider relationships, creating twenty within-cases. The results show that IS-providers impact differently on the business relationships of companies. The impact on companies is contingent on the information exchanges with the IS-providers, which integrate the information systems in their customer business relationships. The impact is explained by the strength of the connection and the degree of continuity of the connection. The strength of the connection depends on how the information system is used and which of the IS-providers are connected. The impact from one IS-provider can be described as a homogenous impact on all the connected business relationships. However, different IS-providers have different types of impacts, meaning that when a company has several IS-providers, the impact is heterogeneous. The study shows that the impact is most commonly positive. The thesis is of interest for researchers who wish to understand the interconnectedness between business relationships, and of value for business professionals, who wish to increase their understanding of the complex situation of using IS-providers for management of their information systems and the impact they have on their other business relationships.
4
Shatzkamer, Kevin David. "Virtual mobile networking using always best connected business relationships". Thesis, Massachusetts Institute of Technology, 2015. http://hdl.handle.net/1721.1/100385.
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Thesis: S.M. in Engineering and Management, Massachusetts Institute of Technology, Engineering Systems Division, System Design and Management Program, 2015.Cataloged from PDF version of thesis.
Includes bibliographical references (pages 93-99).
With the advent of smartphones and tablets, mobile networks are no longer luxuries in the communications industry. Mobile networking is paramount to meeting the need of corporate users and the desires of consumers. These users consume mobile data to reach content and services deployed on the Internet by way of cloud computing. Mobile networks have undergone a number of iterations, with the current state - 4G Long Term Evolution (LTE) - providing a starting point for high speed, low latency mobile networking that meets the demands of bandwidth hungry applications and services. Mobile Virtual Network Operators (MVNOs) have existed as a means to help Mobile Network Operators (MNOs) achieve meaningful market share in industry segments that have been harder, or more expensive, for the MNO to reach. In this way, MVNOs have remained niche providers to a highly segmented industry. In addition, a traditional 1:1 model of MVNO to MNO has left the MNO in dominant position to determine the extent to which the MVNO may be successful. This thesis explores the trends that are forcing business model disruption in the MVNO industry and proposes a technical solution, built around the systems engineering System of Systems (SoS) principles that may be leveraged to help transform the mobile industry into a more competitive environment in which MVNO and MNO compete on level playing fields for subscribers.
by Kevin David Shatzkamer.
S.M. in Engineering and Management
5
Silfvergren, Alex. "Utveckling av goda leverantörsrelationer via CRM-system". Thesis, Uppsala universitet, Institutionen för teknikvetenskaper, 2018. http://urn.kb.se/resolve?urn=urn:nbn:se:uu:diva-347865.
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Gotlands Slagteri är ett företag som bedriver produktion av kött och charkvaror. Verksamheten bygger på långsiktiga relationer mellan såväl leverantörer som kunder, och som vilken relation som helst krävs omtanke och underhållsarbete för att de skall kvarstå. Syftet med den här studien är att titta på Gotlands Slagteris leverantörsrelationer och göra en utomstående bedömning för slakteriets räkning, samt att se om dokumentationshanteringen av leverantörerna kan förbättras. Syftet mynnar följaktligen ut i tre frågeställningar; Hur ser nuläget av relationen mellan Gotlands Slagteri och deras leverantörer ut? Vilken leverantörsinformation önskas av Gotlands Slagteri i framtiden? Är CRM-system ett lämpligt alternativ för Gotlands Slagteri att dokumentera information i och hur kan det tillämpas? Metodiken som använts för införskaffande av data har primärt bestått av intervjuer, både med leverantörer och personal vid Gotlands Slagteri. Studiens frågeställningar resulterar i att relationerna över lag ser bra ut. Det viktigaste för leverantörerna visar sig vara att avräkningspriserna per djur inte är för låga. Studien resulterar också i att slakteriet inte nödvändigtvis är ute efter någon ny information angående leverantörer i framtiden, men att det istället går att utöka leverantörers redan befintliga uppgifter genom att integrera annan sparad information. Vid integrering av vederbörande uppgifter talar resultatet även för att CRM-system är lämpligt vid framtida dokumentation för leverantörsuppgifter. Återstående för slakteriet är att avgöra vilken typ av CRM-system som ter sig bäst lämpat, men studiens rekommendation är att satsa på ett egenutvecklat system. Initialt kan systemet implementeras vid inköpsavdelningen som ett slags pilotprojekt för att därifrån expandera programmets funktioner till att även stödja andra avdelningar i verksamheten.Gotlands Slagteri is a butchery which produces meat and charcuterie. The company is dependent on long term relationships with suppliers as well as customers, and just as in any relationship it is nurtured by tender and care. The purpose of this study is to identify the relationship with the suppliers and see what could be improved upon. In this case, the improvement regards the company’s way of handling information about suppliers, which in turn generate the following questions; does any further information regarding suppliers, valuable enough to be documented exist? How could present information be stored? The information procured attempts to answer what makes suppliers supply to Gotlands Slagteri as well as what the viewpoint of other butcheries is. Via a literature study CRM is proposed as a possible solution and is backed up by a benchmark of what similar companies do (HKScan, KLS, Hälsingestintan). CRM systems turn out to be a recurrent option and could be procured either by buying an already existing product or be developed on your own. The study concludes in there not necessarily being anything new to add as far as information per supplier go, but instead point to the fact that there are some already existing data which potentially could add individual value. Beyond that the study show that CRM could make a strong case as a future feature. The one thing reaming is for Gotlands Slagteri to determine which CRM-system would make the better fit.
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Williams, Joshua P. (Joshua Prop). "Creating DoD program success through program management leadership and trust-based relationships". Thesis, Massachusetts Institute of Technology, 2015. http://hdl.handle.net/1721.1/100388.
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Thesis: S.M. in Engineering and Management, Massachusetts Institute of Technology, Engineering Systems Division, System Design and Management Program, 2015.Cataloged from PDF version of thesis.
Includes bibliographical references (pages 172-177).
Program management is the art of creating success in a complex and ever changing environment. It is fueled on knowledge work. Trust and the relationships are the foundational enablers that must be actively managed and nurtured. The Department of Defense Acquisition System is vast and as with any large system, it contains a multitude of issues. This examination focuses on program management challenges faced by the Government Program Manager and their Defense Contractor counterpart, and how each introduce trust-based relationship barriers and enablers impacting an actor's ability to establish trust and a relationship. This inspection explores trust-based relationship barriers and enablers derived from five different bodies of knowledge. First, I establish a barrier and enabler baseline based on my own professional experience. Second, I capture literature research and theory based barriers and enablers, which provide a diverse and rich understanding of trust and relationships. Third, I conduct a process research study of two major programs and inspect readily available and secondary information to determine trust patterns, common themes, and unique perspectives. Fourth, I survey Acquisition Professionals to determine trust-based relationship barriers and enablers at the Executive, PM-to-PM, and Program Level. Concluding, I interview Acquisition Professionals to garner a deeper understanding of the Department of Defense Acquisition System. Throughout each body of knowledge, I compare barriers and enablers to identify common themes, which produces the basis for each recommendation. Recommendations are focused on improving a PM's skills and the environment in which he or she operates. Actors within the DoD Acquisition System are trained on process routines but are not adequately trained on enablers such as leadership and communication, which build a capability to intelligently execute the routine. Intelligent application of the process routine introduces program management flexibility and trust. This in turn allows an actor to leverage the process to build trust and success system wide. Without actors, trust, and relationships, the process will never produce 'art of the possible' results.
by Joshua P. Williams.
S.M. in Engineering and Management
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Lee, Ungtae (Jeremy Ungtae). "Improving the parametric method of cost estimating relationships of naval ships". Thesis, Massachusetts Institute of Technology, 2014. http://hdl.handle.net/1721.1/92134.
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Thesis: S.M. in Naval Architecture and Marine Engineering, Massachusetts Institute of Technology, Department of Mechanical Engineering, 2014.Thesis: S.M. in Engineering and Management, Massachusetts Institute of Technology, Engineering Systems Division, System Design and Management Program, 2014.
Cataloged from PDF version of thesis.
Includes bibliographical references (pages 68-70).
In light of recent military budget cuts, there has been a recent focus on determining methods to reduce the cost of Navy ships. A RAND National Defense Research Institute study showed many sources of cost escalation for Navy ships. Among them included characteristic complexity of modem Naval ships, which contributed to half of customer driven factors. This paper focuses on improving the current parametric cost estimating method used as referenced in NAVSEA's Cost Estimating Handbook. Currently, weight is used as the most common variable for determining cost in the parametric method because it's a consistent physical property and most readily available. Optimizing ship design based on weight may increase density and complexity because ship size is minimized. This paper will introduce electric power density and outfit density as additional variables to the parametric cost estimating equation and will show how this can improve the early stage cost estimating relationships of Navy ships.
by Ungtae Lee.
S.M. in Naval Architecture and Marine Engineering
S.M. in Engineering and Management
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Zhang, Anming. "Essays on strategic and contractual relationships in oligopoly". Thesis, University of British Columbia, 1990. http://hdl.handle.net/2429/31116.
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The thesis consists of three essays. In the first essay, the strategic effects of bonus/penalty compensation contracts are analysed. This essay consists of the first three chapters of the thesis. In Chapter 1, viewing each firm as a "principal-agent" pair, we examine firms' rivalry in bonus/penalty contracts in oligopolistic markets when the agents are risk-neutral. Under standard assumptions concerning production, demand, and cost functions, we show that bonus/penalty contracts may be used for strategic purposes. We find that whether agents' actions would (in equilibrium) be encouraged through bonuses or discouraged through penalties would critically depend on the existing strategic relationships between agents' actions or firms' products. We further show that firms' capita] stocks can affect their strategic positions in the bonus/penalty rivalry. The social welfare implication of the bonus/penalty rivalry is also examined. In Chapter 2, using a general framework of rivalrous agency with risk-averse agents, we identify two distinctive effects of bonus/penalty contracting, namely, the strategic effect and the incentive effect. We find that the two effects may or may not work in the same direction for a principal-agent pair, depending on the nature of strategic relationships between agents' actions. In Chapter 3, we compare the strategic effects of bonus/penalty contracts with that of linear contracts. We find that, if only one principal is active in designing agency compensation contracts, then he/she would be indifferent between a bonus/penalty contract and a linear contract. If both principals are active in designing agency contracts, however, the choice between bonus/penalty and linear contracts would in general matter to the principals. In particular, we show in an example that both principals would non-cooperatively choose a bonus contract over a linear contract.
The second essay of the thesis, as in Chapter 4, presents an analysis of common sales agents based on their precommitment role when consumers are imperfectly informed about the products on the market. We show that an exclusive channel stucture can create a cost due to exclusive channels' inability to commit themselves to sales impartiality. We further show that independent non-cooperative firms may use common agents as a precommitment device to convince potential consumers that the risk of being misrepresented has been reduced or eliminated. We demonstrate that a market involving common sales agents can arise as an equilibrium outcome. Our analysis shows that common sales agents can be welfare improving for both firms and consumers.
The third essay, as in Chapter 5, investigates the dynamic pattern of firm competitive conduct, using time-series and firm-specific data for a set of duopoly airline routes. We estimate the mean conduct parameters for each firm and each period, and infer whether the data are consistent with the Cournot, Bertrand, Friedman, or Green-Porter models. We find that airlines' competitive behavior may switch between the competitive and collusive regimes. Moreover, we find that airline profits in a collusive period appear less than the (single-period) monopoly profits, and the degree of overall market competitiveness is between the Cournot and monopoly solutions but closer to the Cournot solution. Our data suggest that major carriers might use quantity volumes, rather than prices, as their strategy variables. We also conduct some Bayesian analysis of seeing how our results would influence priors associated with different models. We illustrate a model choice criterion based on Bayesian analysis and use the criterion to choose the "best" model among competing models.Business, Sauder School of
Graduate
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Wen, Bo. "Analysis of human CYP3A4 structure-function relationships using photoaffinity labels /". Thesis, Connect to this title online; UW restricted, 2005. http://hdl.handle.net/1773/8154.
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Thillaisundaram, Arumugam. "Costs, complexity and size relationships in the UK university system". Thesis, University of Southampton, 1998. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.262906.
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Wong, Siu Ming. "Relationships between microstructure and mechanical properties of PLA/HA system /". View abstract or full-text, 2004. http://library.ust.hk/cgi/db/thesis.pl?BIEN%202004%20WONG.
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Senbil, Metin. "The Relationships Between Telecommunications and the Activity System of Individuals". 京都大学 (Kyoto University), 2003. http://hdl.handle.net/2433/148294.
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Dry, P. R. "Response of grapevines to partial drying of the root system". Title page, contents and summary only, 1997. http://web4.library.adelaide.edu.au/theses/09PH/09phd7984.pdf.
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Bibliography: p. 261-273. The general hypothesis tested in this study was that: 'partial drying of the root system of grapevines will result in reduced vegetative growth with beneficial effects for fruit yield, fruit composition and water-use efficiency'. Previously published work has suggested that partial drying of the root system may give rise to non-dydraulic root-derived signals capable of changing leaf development and transpiration.
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Kerfoot, Eric D. "Formal relationships in sequential object systems". Thesis, University of Oxford, 2010. http://ora.ox.ac.uk/objects/uuid:63ed35ee-5ad5-4b8f-858d-fe3868700ed0.
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Formal specifications describe the behaviour of object-oriented systems precisely, with the intent to capture all properties necessary for correctness. Relationships between objects, and in a broader sense the relationship between whole components, may not be adequately captured by specifications. One critical component of specifications having a role in relationships are invariants which define a constraint between multiple objects. If an object's invariant relies on external objects for its conditions, correct operations which abide by their specifications modifying these external objects may violate the constraint. Such an invariant defines a relationship between multiple objects which is unsound since it does not adequately describe the responsibilities which the objects in the relationship have to each other. The root cause of this correctness loophole is the failure of specifications to capture such relationships adequately as well as their correctness requirements. This thesis addresses this shortcoming in a number of ways, both for individual objects in a sequential environment, and between concurrent components which are defined as specialized object types. The proposed Colleague Technique [29] defines sound invariants between two object types using classical Design-by-Contract [35] methodologies. Additional invariant conditions introduced through the technique ensure that no correct operation may produce a post-state which does not satisfy all invariants satisfied by the pre-state. Relationships between objects, as well as their correct specification and management, are the subjects of this thesis. Those relationships between objects which can be described by invariants are made sound with the Colleague Technique, or the lightweight ownership type system that accompanies it. Behavioural correctness beyond these can be addressed with specifications in a similar manner to sequential systems without concurrency, in particular with the use of runtime assertion checking [11].
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Khariwala, Devang. "STRUCTURE-PROPERTY RELATIONSHIPS IN MULTILAYERED POLYMERIC SYSTEM AND OLEFINIC BLOCK COPOLYMERS". Case Western Reserve University School of Graduate Studies / OhioLINK, 2011. http://rave.ohiolink.edu/etdc/view?acc_num=case1288290405.
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Andrews, Jane Mary. "Relationships between motor and sensory function in the proximal gut, appetite, & nutrients in healthy human subjects". Title page, contents and summary only, 1999. http://web4.library.adelaide.edu.au/theses/09PH/09pha567.pdf.
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Bibliography: leaves 206-251. The motor and sensory interactions between nutrients and proximal gut in humans are not well understood, despite the pivotal importance of these interactions on appetite, absorption and thus, nutrition. In part, this lack of knowledge results from technical difficulties in studying motor function in the human gut. In particular, the inability to continuously measure intraluminal flow with any degree of temporal resolution, has impeded progress in this field. The studies described in this thesis focus on nutrient-gut interactions, and also on the development of novel methodologies aimed at advancing the understanding and interpretation of the relationships between intraluminal pressures and flows.
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Blau, Adrian. "Seats-votes relationships in British general elections, 1955-1997". Thesis, University of Oxford, 2002. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.273096.
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Krekels, M. M. E. "(Patho)physiology of the renin-angiotensin system: relationships with sodium balance". Maastricht : Maastricht : Universiteit Maastricht ; University Library, Maastricht University [Host], 1996. http://arno.unimaas.nl/show.cgi?fid=6769.
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Cacan, Ercan. "Evolutionary synthetic biology: structure/function relationships within the protein translation system". Thesis, Georgia Institute of Technology, 2011. http://hdl.handle.net/1853/45838.
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Production of mutant biological molecules for understanding biological principles or as therapeutic agents has gained considerable interest recently. Synthetic genes are today being widely used for production of such molecules due to the substantial decrease in the costs associated with gene synthesis technology. Along one such line, we have engineered tRNA genes in order to dissect the effects of G:U base-pairs on the accuracy of the protein translation machinery. Our results provide greater detail into the thermodynamic interactions between tRNA molecules and an Elongation Factor protein (termed EF-Tu in bacteria and eEF1A in eukaryotes) and how these interactions influence the delivery of aminoacylated tRNAs to the ribosome. We anticipate that our studies not only shed light on the basic mechanisms of molecular machines but may also help us to develop therapeutic or novel proteins that contain unnatural amino acids. Further, the manipulation of the translation machinery holds promise for the development of new methods to understand the origins of life.
Along another line, we have used the power of synthetic biology to experimentally validate an evolutionary model. We exploited the functional diversity contained within the EF-Tu/eEF1A gene family to experimentally validate the model of evolution termed ‘heterotachy’. Heterotachy refers to a switch in a site’s mutational rate class. For instance, a site in a protein sequence may be invariant across all bacterial homologs while that same site may be highly variable across eukaryotic homologs. Such patterns imply that the selective constraints acting on this site differs between bacteria and eukaryotes. Despite intense efforts and large interest in understanding these patterns, no studies have experimentally validated these concepts until now. In the present study, we analyzed EF-Tu/eEF1A gene family members between bacteria and eukaryotes to identify heterotachous patterns (also called Type-I functional divergence). We applied statistical tests to identify sites possibly responsible for biomolecular functional divergence between EF-Tu and eEF1A. We then synthesized protein variants in the laboratory to validate our computational predictions. The results demonstrate for the first time that the identification of heterotachous sites can be specifically implicated in functional divergence among homologous proteins.
In total, this work supports an evolutionary synthetic biology paradigm that in one direction uses synthetic molecules to better understand the mechanisms and constraints governing biomolecular behavior while in another direction uses principles of molecular sequence evolution to generate novel biomolecules that have utility for industry and/or biomedicine.
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Ross, T. "Structure and precipitate morphology relationships in a 68Cr-32Ni binary system". Thesis, This resource online, 1992. http://scholar.lib.vt.edu/theses/available/etd-04212010-143716/.
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Holmes, Monica C. (Monica Cynthia). "The Relationships of Cross-Cultural Differences to the Values of Information Systems Professionals within the Context of Systems Development". Thesis, University of North Texas, 1995. https://digital.library.unt.edu/ark:/67531/metadc279348/.
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Several studies have suggested that the effect of cultural differences among Information Systems (IS) professionals from different nations on the development and implementation of IS could be important. However, IS research has generally not considered culture when investigating the process of systems development. This study examined the relationship between the cultural backgrounds of IS designers and their process-related values with a field survey in Singapore, Taiwan, the United Kingdom and the United States. Hofstede's (1980) value survey module (i.e., Power Distance (PDI), Uncertainty Avoidance (UAI), InDiVidualism (IDV) and MASculininity/femininity) and Kumar's (1984) process-related values (i.e., technical, economic, and socio-political) were utilized in the data collection. The hypotheses tested were: whether the IS professionals differed on (H.,) their cultural dimensions based on country of origin, (Hg) their process-related values based on country of origin, and (H3) whether a relationship between their cultural dimensions and their process-related values existed. The countries were significantly different on their PDI, UAI and MAS, but not on their IDV. They significantly differed on their technical and sociopolitical values but not on their economic values. IDV and MAS significantly correlated with the process-related values in Singapore, Taiwan and the United States. In the United Kingdom, UAI significantly correlated with socio-political values; and MAS significantly correlated with technical and socio-political values. In Taiwan, UAI significantly correlated with technical and economic values. PDI did not illustrate any significant correlation with the IS process-related values in all four countries. In Singapore and the United States, UAI did not significantly correlate with any of these values. The results provide evidence that IS professionals differ on most of their cultural dimensions and IS process-related values. While IDV and MAS could be useful for examining the relationship between culture and systems development, research involving PDI and UAI might be of questionable benefit.
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Higton, Roger Newell. "Studies in gall induction with special reference to the pontania-salix system". Thesis, University of Oxford, 1991. http://ora.ox.ac.uk/objects/uuid:d8b9b0c4-8734-46b4-a5b6-f8dd01290954.
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An investigation was conducted into gall induction in the leaves of Salix fragilis L. var. russelliana (Sm.) Koch by Pontania proxima (Lepeletier) (Hymenoptera: Tenthredinidae). The work was divided into four parts:- a) Reviews of the available literature were undertaken on: hypotheses concerning cecidogenesis of galls initiated by insects, the history of cecidology as it related to galls formed by insects, the ontogeny and morphology of galls produced by sawflies, ecological aspects of gall biology and the effects of galling on the host plant. b) Methods of rearing both insect and host were established; these resulted in an extension of the insect's flight period from five to eight months with three broods per year instead of the usual two. Further work established the topological specificity of oviposition. Preliminary studies were completed on the tissue culture of Salix leaf-disc explants and the fusion of protoplasts released from normal and galled tissue. c) Using light and electron microscopy, a study was made of the reproductive system and associated glands of Pontania proxima females, together with the first stages of the procecidium they initiated. Using these techniques, no microorganisms, viral or otherwise, were observed in the gall, in the lumina of the reproductive system and associated glands or in surrounding tissues of the insect. Evidence for a secretory role for the lateral oviducts was found. A structure termed the vaginal valve was described and it was hypothesized that this functioned to separate the fluids produced by the accessory glands from the contents of the oviduct, until oviposition. In the plant, it was observed that the gall effect was limited and that the presence of an egg or larva was not required for the formation of a procecidium. Gall growth was mainly due to periclinal divisions of the provascular tissues of the leaf. d) A bioassay, based on microinjection techniques, was developed .This demonstrated that the cecidogen was contained in the colleterial fluid produced by the accessory glands. Further analysis showed that the cecidogen had a molecular weight of less that 3 kDa.
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Lloyd, Jacqueline. "Exploring identity-based conflicts and stakeholder relationships in Ontario's child welfare system". Thesis, National Library of Canada = Bibliothèque nationale du Canada, 2000. http://www.collectionscanada.ca/obj/s4/f2/dsk2/ftp03/MQ54558.pdf.
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Smith, Judith. "Forces Affecting Beginning Teacher/Mentor Relationships in a Large Suburban School System". Diss., Virginia Tech, 2003. http://hdl.handle.net/10919/26460.
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According to the U. S. Department of Education (National Commission on Teaching and America's Future, 1996), U.S. public schools will hire an estimated two million teachers within the decade. The experience of the beginning teacher is a stressful one with more than 40% of new teachers choosing to leave the profession during the first three years. One promising practice to address this problem is mentoring, an expert teacher helping the beginner one-on-one. The heart of mentoring is the mentor/mentee relationship. This study investigated the nature of the beginning teacher/mentor relationship and the forces that affected that relationship. The methodology was a cross-case analysis of three pairs of mentor/mentees at the elementary level. The data were collected from focus groups, teacher interviews, observations, email responses, and document review. Data were analyzed using a constant comparative method examining emerging themes across all three cases. Trustworthiness of the research was fostered through multiple sources of data, practice interviews, oversight by peers and committee, participant review, and description of themes in the participants' own words. The data revealed that the mentor/mentee pairs developed very strong relationships grounded on reassurance, collaboration, reciprocity, friendship, problem solving, multi-layered support, and informal structures for getting together. Positive forces affecting the relationships included personality of the participants, perception of mentor role, closeness of age, proximity of classrooms, and common teaching assignment. Time constraints acted as a negative force that presented many challenges addressed by mentors and their mentees in very unique ways.Ph. D.
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He, Peng. "Process-structure-property relationships of yarns produced on the card-spinning system". Thesis, Available online, Georgia Institute of Technology, 2004:, 2004. http://etd.gatech.edu/theses/available/etd-06072004-131148/unrestricted/he%5Fpeng%5F200405%5Fms.pdf.
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James, Andrew D. "The changing nature of the defence industry and the defence innovation system : organisational actors, relationships and system boundaries". Thesis, University of Manchester, 2011. http://www.manchester.ac.uk/escholar/uk-ac-man-scw:148074.
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The publications submitted for this PhD by Published Work represent the product of a decade long programme of research on the nature of the defence innovation system and the organisations, institutions and relationships that underpin defence technological innovation. This has been informed by the systems of innovation approach as well as broader academic perspectives on the nature of innovation and as such the publications are located in the field of innovation studies and in particular the sub-community of scholars that concern themselves with defence technological innovation. In the thesis, I contend that – taken together – the publications make three contributions to knowledge. First, the publications contribute to our understanding of what I term the “defence innovation system”. This illuminates an important corner ignored by most scholars of innovation systems and one that has received too little attention given the role that defence R&D and procurement has played as a stimulus to many significant technological innovations as well as its many implications for international security and society. The defence innovation system has often resisted analysis not least because of the limitations of publicly available information. My publications show recognition of the importance of this topic and shed light on the dynamics of defence technological innovation. Second, the publications contribute to our understanding of the organisations and relationships that underpin the defence innovation system and their response to changes in their operating environment since the end of the Cold War. My focus on organisation-level case studies of defence firms and government defence research establishments is in contrast to most of the academic work in this field that has been preoccupied with national or industry level structure and trends. A recurring theme in my publications, explicitly and implicitly, has been the co-evolutionary character of change in the defence innovation system and the changing relationship between government and defence industrial firms. Third, I examine changes in the boundaries of the system by introducing a transnational dimension to the analysis of defence technological innovation and in doing so my publications have drawn attention to the need to examine transnational linkages between nationally-located systems.
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Cromer, Steven C. "Strengthening human relationships Trinitarian theology and Bowen theory /". Theological Research Exchange Network (TREN), 2005. http://www.tren.com.
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Züllich, Gunda. "Migration and development in Senegal : a system dynamics analysis of the feedback relationships". Master's thesis, Universität Potsdam, 2011. http://opus.kobv.de/ubp/volltexte/2012/5783/.
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This thesis investigates the reciprocal relationship between migration and development in Senegal. Therewith, it contributes to the debate as to whether migration in developing countries enhances or rather impedes the development process. Even though extensive and controversial discussions can be found in the scientific literature regarding the impact of migration on development, research has scarcely examined the feedback relationships between migration and development. Science however agrees with both the fact that migration affects development as well as that the level of development in a country determines migration behaviour. Thus, both variables are neither dependent nor independent, but endogenous variables influencing each other and producing behavioural pattern that cannot be investigated using a static and unidirectional approach. On account of this, the thesis studies the feedback mechanisms existing between migration and development and the behavioural pattern generated by the high interdependence in order to be able to draw conclusions concerning the impact of changes in migration behaviour on the development process.
To explore these research questions, the study applies the computer simulation method ‘System Dynamics’ and amplifies the simulation model for national development planning called ‘Threshold 21’ (T21), representing development processes endogenously and integrating economic, social and environmental aspects, using a structure that portrays the reasons and consequences of migration. The model has been customised to Senegal, being an appropriate representative of the theoretical interesting universe of cases. The comparison of the model generated scenarios - in which the intensity of emigration, the loss and gain of education, the remittances or the level of dependence changes - facilitates the analysis.
The present study produces two important results. The first outcome is the development of an integrative framework representing migration and development in an endogenous way and incorporating several aspects of different theories. This model can be used as a starting point for further discussions and improvements and it is a fairly relevant and useful result against the background that migration is not integrated into most of the development planning tools despite its significant impact. The second outcome is the gained insights concerning the feedback relations between migration and development and the impact of changes in migration on development. To give two examples: It could be found that migration impacts development positively, indicated by HDI, but that the dominant behaviour of migration and development is a counteracting behaviour. That means that an increase in emigration leads to an improvement in development, while this in turn causes a decline in emigration, counterbalancing the initial increase. Another insight concerns the discovery that migration causes a decline in education in the short term, but leads to an increase in the long term, after approximately 25 years - a typical worse-before-better behaviour.
From these and further observations, important policy implications can be derived for the sending and receiving countries. Hence, by overcoming the unidirectional perspective, this study contributes to an improved understanding of the highly complex relationship between migration and development and their feedback relations.Die vorliegende Arbeit untersucht das wechselseitige Verhältnis zwischen Migration und Entwicklung im Senegal. Damit soll ein Beitrag zu der Debatte geleistet werden, ob Migration in Entwicklungsländern den Entwicklungsprozess eher fördert oder verhindert. Während die Frage nach der Auswirkung von Migration auf Entwicklung in der Literatur ausgiebig und kontrovers diskutiert wird, hat sich die Forschung bisher kaum den Rückkopplungen zwischen Migration und Entwicklung gewidmet, obwohl sich die Wissenschaft sowohl darüber einig ist, dass Migration den Entwicklungsprozess beeinflusst, als auch, dass der Entwicklungsstand eines Land das Migrationsverhalten bestimmt. Folglich sind beide Variablen weder abhängig, noch unabhängige, sondern endogene Variablen, die sich gegenseitig beeinflussen und damit Verhaltensweisen produzieren, deren Erforschung ein statischer, unidirektionaler Ansatz nicht gerecht wird. Deswegen fragt diese Arbeit nach den Rückwirkungsmechanismen, die zwischen Migration und Entwicklung existieren, und nach den Verhaltensweisen, die durch die hohe Interdependenz entstehen, um daraus Rückschlüsse auf die Frage ziehen zu können, welchen Einfluss Änderungen im Migrationsverhalten auf den Entwicklungsprozess haben. Um diese Forschungsfragen zu untersuchen wurde die Computersimulationsmethode System Dynamics genutzt und das Simulationsmodell zur nationalen Entwicklungsplanung, das ‚Threshold 21’ (T21), das die Entwicklungsprozesse endogen darstellt und soziale, ökonomische sowie ökologische Aspekte miteinander verknüpft, um eine Struktur erweitert, welche die Gründe und Konsequenzen von Migration abbildet. Dies wurde an den Senegal, ein angemessener Repräsentant der theoretisch interessanten Grundgesamtheit, angepasst. Der Vergleich der mit dem Modell generierten Szenarien, in denen die Intensität der Abwanderung, des Bildungsverlustes, des Bildungsgewinns, der Geldüberweisungen, oder der Abhängigkeit verändert wurden, ermöglichte die Analyse. Die Studie bringt zwei wichtige Ergebnisse hervor. Erstens entwickelt sie ein umfangreiches Modell, das Migration und Entwicklung endogen erklärt und verschiedene theoretische Ansatzpunkte enthält. Dies kann sowohl als Grundlage für weitere Diskussion und Verbesserungen genutzt werden, ist aber vor allem vor dem Hintergrund, dass Migration in den meisten Modellen zur Entwicklungsplanung trotz des relevanten Einflusses nicht integriert ist, ein wichtiges und nützliches Resultat. Zweitens konnte die Analyse des Verhaltens des Modells wichtige Erkenntnisse bezüglich der Rückwirkungsmechanismen zwischen Migration und Entwicklung und der Wirkung von Veränderungen in Migration auf Entwicklung erzielen. Um zwei Beispiele zu nennen, wurde herausgearbeitet, dass Migration sich positiv auf Entwicklung, gemessen am Human Development Index (HDI), auswirkt, dass es sich aber generell um ein sich ausgleichendes Verhalten handelt, da die positiven Einflüsse auf Entwicklung ihrerseits Migration verringern, wodurch die positiven Einflüsse wieder abnehmen. Ebenso konnte festgestellt werden, dass Migration für das Bildungsniveau zunächst eine Verschlechterung, später aber, nach ca. 25 Jahren, eine Verbesserung nach sich zieht. Aus diesen und weiteren Beobachtungen können wichtige Politikempfehlungen für die Sende- und Empfängerländer von Migration abgeleitet werden. Durch das Überwinden der unidirektionalen Betrachtungsweise trägt diese Arbeit somit zu einem besseren Verständnis des hoch komplexen und von Rückwirkungsmechanismen geprägten Verhältnisses zwischen Migration und Entwicklung bei.
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Leiva, Villacorta Fabricio. "Relationships between laboratory measured characteristics of HMA and field compactability". Auburn, Ala., 2007. http://repo.lib.auburn.edu/07M%20Theses/LEIVA_FABRICIO_7.pdf.
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Christofaris, Lynne D. "Semantic and Phonological Relationships to Word Retrieval during Aging". Miami University / OhioLINK, 2008. http://rave.ohiolink.edu/etdc/view?acc_num=miami1209768680.
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Ngoma, Bulelwa. "An exploration of perceptions and experiences of Xhosa speaking women in abusive relationships". Thesis, University of the Western Cape, 2005. http://etd.uwc.ac.za/index.php?module=etd&action=viewtitle&id=gen8Srv25Nme4_9863_1182748775.
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The problem of abusive relationships has attracted national attention in South Africa. Historically South Africa has a strongly entrenched patriarchal system, which gives men proprietary rights over women. Traditional and cultural values as means of resolving conflict are critical in shaping and perpetuating violence of men toward women. A woman&rsquo
s social status is believed to be derived by her relative position to a man that is as daughter, wife, girlfriend or mother of his children. One solution to ending the abuse and leading violence free lives would be to leave the relationship. While this is a possible solution it should be noted that in order for women to leave it requires enormous restructuring of material, physical and social relations. A qualitative feminist research methodology was used with a convenience sample of 8 women who agreed to participate in the study. In depth interviews were conducted with the participants to explore the perceptions and experiences of Xhosa women in abusive relationships. The participants resided in Khayelitsha, Phillipi and Langa. The interviews lasted from 30 minutes to 45 minutes, were audio taped and transcribed. In view of the qualitative nature of the study, the researcher employed thematic analysis. Women mentioned their experiences of abuse and discussed their help seeking strategies. A number of themes that emerged from the study suggested clearly women&rsquo
s perceptions and experiences to remain in their abusive relationships. These themes relate to commitment, staying because of children, cultural beliefs (lobola), economic dependence and lack of social support. It also emerged from the discussions with women that the emotional and structural support that these women received from the NGO played a huge role. The most important finding from the study was that change occurred as a result of abuse.
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Höglin, Viktor. "Structure-Magnetic Relationships in the Fe-Mn-P-Si System for Energy Applications". Doctoral thesis, Uppsala universitet, Oorganisk kemi, 2014. http://urn.kb.se/resolve?urn=urn:nbn:se:uu:diva-234516.
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Demands for new, energy-efficient appliances have greatly increased in response to our growing need for a more environmentally friendly society. Magnetic refrigeration is a technique that utilizes the magnetocaloric effect, with possible energy savings of up to 30% compared to commercial gas compression refrigerators. A material appropriate for commercial magnetocaloric devices should be both cheap and non-toxic; it should also exhibit a first-order magnetic transitions close to room temperature. The magnetic properties of Fe2P-related materials can be relevant in this context, since their magnetic properties can be finely tuned through the substitution of Fe by Mn and P by Si, As, Ge or B to meet the general requirements for a magnetocaloric device. An in-depth study has therefore here been made of the structural and magnetic properties of the (Fe,Mn)2(P,Si)-system. The phase diagram of the FeMnP1-xSix-system has been carefully re-examined. It is found to contain two single-phase regions: an orthorhombic Co2P-type structure (x < 0.15) and a hexagonal Fe2P-type structure (0.24 ≤ x < 0.50). Selected compounds within the Fe2P-type region of the phase diagram have been shown to exhibit potential for use in magnetic refrigeration applications. Neutron powder diffraction has here been used to determine the magnetic structures of selected crystalline compositions within the FeMnP1-xSix-system to gain a better understanding of its magnetic properties. The Fe2P-type region is mainly ferromagnetic, but an incommensurate antiferromagnetic structure has also been identified close to the Co2P/Fe2P-type phase border for x ≈ 0.25. The so-called ''virgin effect'' in the Fe2P-type region of the FeMn(P,Si) phase diagram is found to be accompanied by an irreversible structural phase transition induced by magnetostriction. This new phase is found to be preserved during successive cooling-heating cycles. Furthermore, the magnetic properties of the substituted Fe2P-type structure changes significantly for metal:non-metal ratios away from 2:1. Such deviations could well explain the apparently conflicting structure-property relationships described in earlier literature for the FeMnP1-xSix-system.
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Gao, Zimin. "Phase Relationships in the System CaO-MgO-Al2O3-SiO2 in Plagioclase Lherzolite Field". FIU Digital Commons, 1991. http://digitalcommons.fiu.edu/etd/3615.
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Unreversed phase equilibrium studies were carried out in a model mantle composition CaO-MgO-Al2O3-SiO2 (CMAS) system at 5-9 kb and 12 7 0-13 3 CPC. The experiments provide a set of data which narrowly constraints the position of the solidus in the system CMAS in the plagioclase lherzolite field. All runs were conducted in a 2.54 cm core-diameter piston-cylinder apparatus with salt-cell pressure medium. The equilibrium compositions of the mineral phases and glass were analyzed with an electron microprobe. The A12O3 contents in orthopyroxene and clinopyroxene coexisting with olivine and plagioclase increase with pressure. The deduced alumina isopleths in orthopyroxene and clinopyroxene have higher slope in P-T space than those of theoretical calculations. An empirical pyroxene geobarometer has been developed and applied to the plagioclase lherzolite xenoliths in Hawaiian basalt.
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Lazem, Shaimaa. "Analysis of the Relationships between Changes in Distributed System Behavior and Group Dynamics". Diss., Virginia Tech, 2012. http://hdl.handle.net/10919/26732.
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The rapid evolution of portable devices and social media has enabled pervasive forms of distributed cooperation. A group could perform a task using a heterogeneous set of the devices (desktop, mobile), connections (wireless, wired, 3G) and software clients. We call this form of systems Distributed Dynamic Cooperative Environments (DDCEs).
Content in DDCEs is created and shared by the users. The content could be static (e.g., video or audio), dynamic (e.g.,wikis), and/or Objects with behavior. Objects with behavior are programmed objects that take advantage of the available computational services (e.g., cloud-based services).
Providing a desired Quality of Experience (QoE) in DDCEs is a challenge for cooperative systems designers. DDCEs are expected to provide groups with the utmost flexibility in conducting their cooperative activities. More flexibility at the user side means less control and predictability of the groupsâ behavior at the system side.
Due to the lack of Quality of Service (QoS) guarantees in DDCEs, groups may experience changes in the system behavior that are usually manifested as delays and inconsistencies in the shared state. We question the extent to which cooperation among group members is sensitive to system changes in DDCEs. We argue that a QoE definition for groups should account for cooperation emergence and sustainability.
An experiment was conducted, where fifteen groups performed a loosely-coupled task that simulates social traps in a 3D virtual world. The groups were exposed to two forms of system delays. Exo-content delays are exogenous to the provided content (e.g., network delay). Endo-content delays are endogenous to the provided content (e.g., delay in processing time for Objects with behavior). Groups' performance in the experiment and their verbal communication have been recorded and analyzed.
The results demonstrate the nonlinearity of groups' behavior when dealing with endo-content delays. System interventions are needed to maintain QoE even though that may increase the cost or the required resources.
Systems are designed to be used rather than understood by users. When the system behavior changes, designers have two choices. The first is to expect the users to understand the system behavior and adjust their interaction accordingly. That did not happen in our experiment. Understanding the system behavior informed groups' behavior. It partially influenced how the groups succeeded or failed in accomplishing its goal. The second choice is to understand the semantics of the application and provide guarantees based on these semantics. Based on our results, we introduce the following design guidelines for QoE provision in DDCEs.
â ¢If possible the system should keep track of information about group goals and add guarding constraints to protect these goals.
â ¢QoE guarantees should be provided based on the semantics of the user-generated content that constitutes the group activity.
â ¢Users should be given the option to define the content that is sensitive to system changes (e.g., Objects with behavior that are sensitive to delays or require intensive computations) to avoid the negative impacts of endo-content delays.
â ¢Users should define the Objects with behavior that contribute to the shared state in order for the system to maintain the consistency of the shared state.
â ¢Endo-content delays were proven to have significantly negative impacts on the groups in our experiment compared to exo-content delays. We argue that system designers, if they have the choice, should trade processing time needed for Objects with behavior for exo-content delay.Ph. D.
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Lee, Dongchul C. "STRUCTURE-FUNCTION RELATIONSHIPS IN CENTRAL NERVOUS SYSTEM NEURONS ACTIVATED BY EXTRACELLULAR ELECTRIC FIELDS". Case Western Reserve University School of Graduate Studies / OhioLINK, 2004. http://rave.ohiolink.edu/etdc/view?acc_num=case1089749205.
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Gordon, David M. "Population dynamics of a host-parasitoid system with particular reference to age-structure effects". Thesis, McGill University, 1987. http://digitool.Library.McGill.CA:80/R/?func=dbin-jump-full&object_id=75358.
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An experimental study of laboratory populations of the stored-products moth, Cadra cautella (Lepidoptera: Phycitidae) and its larval parasitoid, Venturia canescens (Hymenoptera: Ichneumonidae) identified and quantified density- and age-dependent demographic characteristics of the host-parasitoid system. Host imago longevity and fecundity depended on larval weight at pupation. Observed effects of C. cautella larval competition for food on larval mortality, stage duration, and weight at pupation were successfully captured in a mathematical model. Host larval age significantly influenced inter-stage cannibalism and susceptibility to mortality resulting from parasitoid oviposition wounds. Both larval parasitoid developmental rates and adult parasitoid attack rates depended on host larval age. Long-term population experiments of host and host-parasitoid populations revealed that host populations fluctuated with a period slightly in excess of host generation time and that parasitoid populations were in synchrony with host populations.
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Coenen, Lance Gregory 1959. "MULTI-STEP COULOSTATIC IMPULSE GENERATOR AND POTENTIAL MONITORING SYSTEM". Thesis, The University of Arizona, 1987. http://hdl.handle.net/10150/276529.
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A Coulostatic Impulse Generator (CIG) is an electronic device that transfers electrical charge to and from a pair of electrodes inserted in plant tissue. Six discrete charge transfers can be implemented in any desired sequence. The major purpose of the CIG is to determine the electrochemical constituents of the plant apoplast electrolyte. The objective of this thesis is threefold: (1) to design, construct and test the supervisory circuitry of the CIG, (2) to design, construct and test the interface between the NEC portable computer and the CIG, (3) to generate utility software to control each circuit board in the system. To handle the extreme difference in the timing of the charge transfer (microseconds) and the subsequent plant response a three step timing sequence is employed which permits an independent range of sample times and sample numbers. Data acquired is first stored in RAM in the computer within the CIG and then transferred to the external computer. (Abstract shortened with permission of author.)
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Safarov, I. (Ildar). "Towards modelling of human relationships:nonlinear dynamical systems in relationships". Doctoral thesis, University of Oulu, 2009. http://urn.fi/urn:isbn:9789514291425.
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Abstract This study fills an urgent need for qualitative analyses of relationships resulting in human change. It is a result of sixteen years of independent study by the author. It combines postgraduate study of nonlinear methodology, applied research of children’s pretend play, experience in educational psychology and Gestalt-counselling, as well as the practical training of graduate students at the Karelian State Pedagogical University (Petrozavodsk, Russia), and the Kajaani Department of Teacher Education (Kajaani, Finland). In this thesis, an attempt is made to reveal the fundamental reality of relationships between human beings. Using theories of helping relationships and data from developmental psychology, a qualitative nonlinear dynamical model of human relationships is elaborated. The scientific findings of Kurt Lewin and the Gestalt-therapy theory are widely used. To illustrate the explanatory potential of the proposed relationship model and the possibility of qualitative analyses, children’s pretend play is analyzed. In the first chapter, the basic connectedness between humans is studied. The author is focused on theories of relationships and their application to the organizing of relationships’ flow. The second chapter is devoted to detailed analyses of dynamic features of these theories and Kurt Lewin’s conception of tension system. The ontological philosophy of relationships is briefly reviewed. This helps to formulate the main problem of the research – how is a nonlinear phenomenological model of human relationships possible? In the third chapter, a new nonlinear dynamic model of human relationships is elaborated. Several conceptions from Lewin’s dynamic psychology and Gestalt-therapy are further developed in the model. A number of examples are analyzed. Video-data on children’s pretend play is analyzed in the fourth chapter. In the subsequent discussions some advantages and shortcomings of the suggested dynamic nonlinear model are examinedTiivistelmä Tämä tutkimus pyrkii vastaamaan kysymykseen miten inhimilliset suhteet voivat johtaa laadullisiin muutoksiin. Työssä paneudutaan ihmisten välisten suhteiden psykologisiin perusteisiin. Siinä kehitellään ihmisten välisten suhteiden ei-lineaarinen dynaaminen malli käyttäen kehityspsykologian ja auttamissuhteiden teorioita. Analyysi pohjautuu Kurt Lewinin ja hahmoterapian teoreettisiin oivalluksiin. Kehitellyn mallin selitysvoiman ja laadullisen analyysin mahdollisuuksien osoittamiseksi mallia sovelletaan lasten juonellisen roolileikin erittelyyn. Ensimmäisessä luvussa pohditaan esimerkkien avulla ihmisten välisten kontaktien perusluonnetta. Erityisesti keskitytään suhteiden teorioihin ja niiden sovelluksiin suhteiden jatkumon rakentamiseksi. Toinen luku paneutuu näiden teorioiden kuvaamien suhteiden dynaamisten piirteiden yksityiskohtaiseen tarkasteluun ja Kurt Lewinin ”tension system” käsitteeseen. Siinä esitellään myöskin lyhyesti suhteiden yksilökehityksen filosofiaa. Tältä pohjalta muotoillaan tutkimuksen pääongelma: Kuinka inhimillisten suhteiden ei-lineaarinen fenomenologinen malli on mahdollinen? Kolmannessa luvussa kehitellään uusi ei-lineaarinen inhimillisten suhteiden malli. Mallissa on kehitelty ja annettu uusi tulkinta useille Lewinin dynaamisen psykologian ja hahmoterapian käsitteille. Kehittelyä on tuettu käytännön esimerkein. Neljännessä luvussa on analysoitu lasten juonellisen roolileikin videotallenteita mallia käyttäen. Pohdinta tuo esille joitakin uuden mallin etuja ja jatkokehittelyn tarpeita
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Irizar, Amaia. "The inter-relationships between the cytochrome P450-dependent mixed-function oxidase system and disease". Thesis, University of Surrey, 1995. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.308409.
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Emberson, Caroline Anne. "Actors' inter-organisational information system use within buyer-supplier relationships : cases from UK retail". Thesis, Open University, 2009. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.505356.
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As companies focus on core activities, inter-organisational relationships assume greater importance. This places new demands on cross-boundary, inter-organisational relationships. It is often argued that information and communication technology enables the seamless and efficient flow of information between market-facing organisations and their suppliers. Moving beyond simple market mechanisms based on price, the efficiency and effectiveness of inter-organisational networks can be improved through information sharing.
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Anderson, Roger J. "Characterization of Performance, Robustness, and Behavior Relationships in a Directly Connected Material Handling System". Diss., Virginia Tech, 2006. http://hdl.handle.net/10919/26967.
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In the design of material handling systems with complex and unpredictable dynamics, conventional search and optimization approaches that are based only on performance measures offer little guarantee of robustness. Using evidence from research into complex systems, the use of behavior-based optimization is proposed, which takes advantage of observed relationships between complexity and optimality with respect to both performance and robustness. Based on theoretical complexity measures, particularly algorithmic complexity, several simple complexity measures are created. The relationships between these measures and both performance and robustness are examined, using a model of a directly connected material handling system as a backdrop. The fundamental causes of the relationships and their applicability in the proposed behavior-based optimization approach are discussed.Ph. D.
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Rielly, Elizabeth Wheeler. "Spatial variation drives patterns of community composition and trophic relationships in a marine system". Diss., Temple University Libraries, 2015. http://cdm16002.contentdm.oclc.org/cdm/ref/collection/p245801coll10/id/345225.
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BiologyPh.D.
Examining how ecological processes are influenced by spatial variation can provide valuable insights into how communities are formed and how they may change in dynamic landscapes. In this thesis I address three objectives surrounding the spatial and temporal variation in species’ recruitment and predation, the influence of habitat isolation on consumer-resource relationships, and the influence of habitat fragmentation on a multi-trophic system. I used marine invertebrates, specifically crustaceans, bivalves, and sessile species as a model system. First, I address the spatial and temporal variation in local and regional processes in a multispecies assemblage of marine sessile invertebrates. Using diverse communities of marine sessile invertebrates as a model system I tested the hypothesis that spatial and temporal variation in recruitment and predation would shape local communities, and that both recruitment and predation would have significant effects on the abundance and structure of adult communities. I found that both recruitment and predation vary through time and space leading to the emergence of regional community divergence. I also address how habitat isolation interacts with top-down and bottom-up processes in seagrass ecosystems. Spatial structure of the habitat may mediate top-down and bottom-up controls of species abundances through decreased habitat connectivity and increased habitat isolation. I manipulated top down and bottom up processes by excluding mesograzers, adding resources, or altering both factors in isolated and contiguous patches of artificial seagrass. I then measured epiphyte recruitment, epiphyte abundances, and macroalgae abundance. I paired this with epiphyte sampling from isolated natural seagrass patches. I found that habitat isolation significantly decreased the abundance of epiphytes settling on seagrass blades due to dispersal limitation for epiphytic invertebrates. I found that consumers had strong effects on epiphyte biomass in continuous habitats, but not isolated habitats. Resource additions increased macroalgae cover and epiphyte biomass only in isolated habitats. The results suggest that isolated habitats may be nutrient limited and that top-down effects are stronger in continuous habitats, while bottom-up effects may dominate in isolated habitats. In my third objective, I address how habitat fragmentation may alter marine food webs. I examined whether predation rates, prey, and predator behavior differed between continuous and fragmented seagrass habitat in a multi-trophic context at two sites in Barnegat Bay, NJ. I hypothesized that blue crab predation rates and foraging would decrease in fragmented seascapes, due to a reduction in adult blue crab densities, increasing survival rates of juvenile blue crabs and hard clams. I expected hard clams to exhibit weaker predator avoidance behavior in fragmented habitats because of decreased predation. I found that species’ responses to fragmentation were different based on trophic level. Clams experienced higher predation and burrowed deeper in continuous habitats at both sites. Densities of blue crabs, the primary predator of hard clams, were higher in continuous habitats at both sites. Predation on juvenile blue crabs was significantly higher in fragmented seagrass at one site. Our results suggest that in fragmented seascapes, the impact of fragmentation on higher trophic level predators may drive predation rates and prey responses across the seascape, which may lead to trophic cascades in fragmented habitats.
Temple University--Theses
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Ruys, John Daniel. "The relationships between psychological and physiological systems : central neurochemistry, the hypothalamic-pituitary-adrenal system, and personality assessments in rhesus macaques /". For electronic version search Digital dissertations database. Restricted to UC campuses. Access is free to UC campus dissertations, 2003. http://uclibs.org/PID/11984.
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PICCONI, MASSIMILIANO. "Technologies, routing policies and relationships between autonomous systems in inter-domain routing". Doctoral thesis, Università degli Studi di Cagliari, 2011. http://hdl.handle.net/11584/265901.
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A deep exploration of the issues related to routing decisions in inter-domain routing is the scope of this thesis, through the analysis of the interconnection structure and the network hierarchy, the examination of the inter-domain routing protocol used to exchange network reachability information with other systems, the examination of the routing decision process between the entities according to their attributes and policies, the study of the topology generators of the AS relationships, reviewing the most interesting proposals in this area, describing why these issues are difficult to solve, and proposing solutions allowing to better understand the routing process and optimally solve the trade-off of implementing a Peering Engagement between two Autonomous Systems, against the extra cost that this solution represent.
More specifically this thesis introduces a new scheme for the routing decision in a BGP speaker through a formalization of the routing decision process, and proposes a formulation of a real and exhaustive mathematical model of a Peering Engagement between Autonomous Systems, to be solved as a problem of maximization with an ad-hoc built Decision Support System (XESS) able to find an optimal reduced set of solutions to the proposed problem. --------------------------------------------------------------------------
ABSTRACT [IT]
Un’analisi approfondita delle tematiche inerenti le decisioni di routing nel routing interdominio è oggetto di questa tesi, attraverso l’esame della struttura di interconnessione e delle gerarchia del network, lo studio del protocollo utilizzato nel routing interdominio per scambiare le informazioni di reachability con gli altri sistemi, l’analisi del processo decisionale tra le entità coinvolte nello scambio di tali informazioni in accordo con le politiche e gli attributi, lo studio delle topologie sintetiche derivate dallo studio delle relazioni tra gli AS, attraverso i lavori di ricerca in quest’area, la descrizione dei problemi e delle difficoltà, e offrendo un contributo atto a fornire una maggiore comprensione del processo decisionale nel routing interdominio e una soluzione per l’implementazione di un processo di Peering tra Autonomous System.
In particolare, questa tesi introduce un nuovo modello per il processo decisionale in uno speaker BGP attraverso la formalizzazione del routing decision process, e propone un modello matematico esaustivo delle meccaniche legate al processo di Peering Engagement tra Autonomous System, da analizzare come problema di massimizzazione e da risolvere con un Decision Support System (XESS) creato per trovare un sottoinsieme ottimo di soluzioni al problema matematico proposto.
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Balogh, Zsuzsanna. "Chemical hydrology of vascular plant growth : role of root-fungus associations". Online access for everyone, 2006. http://www.dissertations.wsu.edu/Dissertations/Summer2006/z%5Fbalogh%5F071806.pdf.
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Ekman, Peter. "Enterprise Systems & Business Relationships : The Utilization of IT in the Business with Customers and Suppliers". Doctoral thesis, Mälardalen University, School of Business, 2006. http://urn.kb.se/resolve?urn=urn:nbn:se:mdh:diva-141.
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This thesis deals with how companies utilize their enterprise systems in their business relationships. The study’s starting point is enterprise systems that basically are standardised information systems that the company can acquire from software vendors like SAP, Oracle and Microsoft. Enterprise systems aim to integrate and manage all the company’s data and it can also be linked to its business partners.
The thesis contains two case studies of how a focal company utilizes its enterprise system in their business relationships. To accomplish this, an analytical framework based upon the combination of an information systems (IS) and a business relationship perspective is developed and applied. The IS perspective follows an ‘ensemble view of technology’ approach which describes the use of information systems as embedded in a both technical and social context. The business relationship perspective is founded in empirical studies of industrial companies. Basically, business relationships are unique and based on the companies’ exchanges. It also involves behavioural elements as trust, commitment, adaptations and interdependencies between the partners.
The two case studies cover the business relationships between ten companies and the character of the studied business relationships varies. The results show that enterprise systems are mainly focused on the companies’ internal activities. The exchanges in the business relationships are either carried out without the enterprise system or are supported by some complementary information system. Enterprise systems are thus mainly seen as production systems. This can be explained by the heritage from former material and resource planning (MRP) systems. An alternative explanation can be that business relationships are unique and require continuous adaptations and a mutual orientation. Enterprise systems require structural data rendering them difficult to use for the activities of a business relationship. The users then develop other, individual, applications that handle what is needed in their ongoing business. The threat is that information can be lost on a company level. The challenge is therefore to investigate the complementary information systems functions to see if it is possible to extend the enterprise system to include them. To be worth its epithet, the enterprise system must facilitate all the business activities found in the companies business relationships.
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Annandale, Elanza. "Investigating the dyadic relationships of a health organisation in the mining industry / Elanza Annandale". Thesis, North-West University, 2012. http://hdl.handle.net/10394/8641.
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There is a single thing that is universal to every human being, connection, unit, organisation, population, financial system and civilisation throughout the globe. If disconnected it might devastate the most authoritative government, the most flourishing business, most prosperous economy and the most powerful leadership. On the other hand if developed and influenced, that one thing has the potential to generate incomparable accomplishment and prosperity in every measurement of life. Yet, it is the least understood, largely ignored and most underestimated opportunity of our time. That one factor is trust.
The intent of this study is to explore the nature of interpersonal trust relationships by investigating the factors of disposition trust, the domains of trust behaviour, cognition based trust and affect based trust as well as the accuracy of the performance appraisal. Factors that influence trust levels are pre-requisite to further investigate trustworthiness by means of other three factors: the employees’ ability, integrity and benevolence.
If trust exists within an organisation, it influences the following factors positively: communication, organisational citizen behaviour, learning inside the organisation, turnover team performance as well as the organisation’s performance.
An empirical study was done through a survey consisting of recognized questionnaires to establish the trust levels, as well as the accuracy of the performance appraisal system. This summarised the importance of the trust levels, as well as the accuracy of the performance appraisal system. The survey results were analysed in detail in order to conclude which construct and areas necessitate consideration from management. The trust foundations were understood differently by the employees as indicated by the results of the survey. Another indication from the survey was that there are important dissimilarities on how certain groups understand the leadership’s actions with respect to trust within the organisation. The possibilities for these differences were mentioned.
Recommendations were also made to improve the three trustworthy factors along with the other constructs measured in this survey to identify the dissimilarities between the different language groups, different genders, the permanent and the part-time group.Thesis (MBA)--North-West University, Potchefstroom Campus, 2013
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Lee, Yen-Chin, e 李彥青. "Intrusion Detection System with Temporal Relationships". Thesis, 2008. http://ndltd.ncl.edu.tw/handle/35569911356322760536.
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碩士國立臺灣科技大學
資訊工程系
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In society nowadays, the use of Internet becomes more prevalent. However, as the Internet developed, it also has a growing number of potential risks. We need some mechanisms to help us protecting our systems from these risks. An Intrusion Detection System (IDS) is generally used to detect anomalous behaviors and give system administrators alarms if it detects suspicious behaviors. We design an intrusion detection system by considering temporal relationships among them, and then use semi-supervised learning with EM algorithm to update our model. To consider temporal relationships among data, we use a Hidden Markov Model (HMM). To deal with high dimensional data, so we combine HMM with Naive Bayes. Also, to consider temporal interaction of order higher than one, we adopt high-order Markov model and the detection result shows us better performance than the result from one-order Markov model. On the other hand, we use the result of support vector machine with temporal consideration to compare with our experiment result. By the results, we can observe that the temporal relationships can really help us to achieve higher detection accuracy. Finally, as an adaptive version of our model, we use semi-supervised learning with EM algorithm to tune our parameters. By this way, we can train a model which can fit to the real environment with adaptive manner.
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Allison, Leslie K. "Relationships between postural control system impairments and disabilities". Thesis, 1997. http://hdl.handle.net/1957/33682.
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Downarowicz, Ewa. "Plant-environment relationships in a disturbed wetland system". Thesis, 2003. http://hdl.handle.net/2429/14438.
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Efforts are increasing to mitigate pressures on wetlands from human disturbance. Conservation of these systems requires expansive knowledge of ecosystem structure and underlying environmental gradients exerting control over plant distribution. A multitude of environmental gradients important in undisturbed wetland systems have been studied extensively. The most
important have been shown to be: acidity/base richness, nutrient status, water level fluctuations, and organic matter accumulation (Bridgham et al., 1996). Human modification of wetland hydrology may alter the relationships between species distribution and underlying environmental
gradients. It is therefore important to study the plant-environment relations in disturbed systems to collect baseline data and subsequently monitor changes in the system. The primary aim of this thesis was to examine which environmental gradients were important in the distribution of wetland species in a disturbed stream fen/mound bog system. The study area, Blaney bog, is a wetland that has been modified by the construction of a dyke/canal system
dividing the area into two separate sections. Aerial photographs and primary survey showed that
four plant community types dominate the Blaney bog landscape: Kalmia occidentalis, Phalaris
arundinacea, Spiraea douglasii, and Carex spp.. In accordance with the primary aim, a dipwell
network was established in the four plant community types. Soil water was sampled from the
dipwells for a ten month period, peat cores were collected and the vegetation was surveyed at
each site. In addition to the initial 16 dipwell sites, 22 sites were added to the study. At these
additional sites the same vegetation and soil data was collected however because the sites lacked
dipwells, the water was sampled only once. Data analyses addressed the inter-relations between
the water and soil variables and plant community composition. Non-parametric analyses of, variance were used to examine if the differences between plant community groups were significant. Spearman's correlation coefficients were calculated to examine relationships between environmental variables. All variables were also analyzed simultaneously using the Nonmetric Multidimensional Scaling method. Results showed that the Kalmia sites were the most representative of poor fen sites. Sites in the other three plant communities varied in their chemistry compared to the expected range found in undisturbed fens. Water components were much more variable than the soil components. The bog-fen gradient was clearer in the pH values, cation concentrations and nutrient status in the
soil compared to unclear patterns in the water data. Although total soil nutrient concentrations may not be reflective of nutrient availability, overall the soil components are much more static and present a clearer picture of site conditions at Blaney bog. The disturbance caused by the
dyke/canal system and possibly ongoing influx of drainage waters from neighboring agricultural land, are thought to substantially affect the hydrology of this wetland. Effectively, the water
table and chemistry are much more dynamic than in undisturbed wetland systems. This study recommends that future monitoring Blaney bog should focus on the soil component rather than the water component and should further investigate the effect of water table fluctuations on plant distribution.