Dissertations / Theses on the topic 'Coordination'
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Shrider, Emily R. "Tacit Coordination: The Profile of a Coordinator." Ashland University Honors Theses / OhioLINK, 2016. http://rave.ohiolink.edu/etdc/view?acc_num=auhonors1473553513382304.
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Mukherji, Manibrata. "Specification of multi-object coordination schemes using coordinating environments." Diss., This resource online, 1995. http://scholar.lib.vt.edu/theses/available/etd-06062008-152415/.
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Lawrence, Michael. "Data coordination." Thesis, University of British Columbia, 2013. http://hdl.handle.net/2429/44046.
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Data coordination is the problem of updating a contingent database C as a result of changes to a
database B on which it depends. For example, a general contractor’s construction cost estimate
(C) needs to be updated in response to changes made by an architect to a building design (B).
Although these two databases are related in a very specific way, they contain information about
fundamentally different types of objects: the cost estimate is composed of items which represent
work results, and the building design is composed of physical objects.
Motivated by scenarios such as design-cost coordination, we propose an approach to coordinating
data between autonomous, heterogeneous sources which have a base-contingent relationship.
We propose the use of declarative mappings to express exact relationships between the two. Using
materialized views to maintain state, we give an overall approach for coordinating sets of updates
from B to C through view differencing and view update translation. We adopt ideas from data
exchange and incomplete information to generate the set of all possible updates which satisfy a
mapping. We propose methods for assisting a user (C’s administrator) in choosing amongst the
possible updates, and experimentally evaluate these methods, as well as the overall benefit of semiautomatic
data coordination, in a usability study. We then discuss practical challenges in applying
our general techniques to the domain of architecture, engineering and construction, by interviewing
practitioners and analyzing data from two construction projects.
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Martínez-Fabián, Constantino. "Yaqui Coordination." Diss., The University of Arizona, 2005. http://hdl.handle.net/10150/193973.
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This research describes and explains in the OT framework the Yaqui coordination. It is assumed that coordinate structures are asymmetric and, based in the Yaqui data, I propose that the coordination is the result of an adjunct-host relation. This work shows that the ConjP is inappropriate for explaining the place that the Yaqui coordinator into 'and' occupies in overt syntax. It demonstrates that the proposal which suggests that coordinators in second position are clitics (Agbayani and Goldston 2002) can not be maintained in Yaqui because such position is generated by fronting a topicalized constituent. If we depart from the idea that clitics and topics move to different positions, then a different explanation is required. The proposal is extended to the analysis of unbalanced verbal chaining structures. It is shown that some --kai constructions are marked syntactically as subordinated but actually they are coordinate structures. In the final part of this work I describe and analyze the agreement between coordinate nominals and verbs. The analysis indicates that Yaqui responds partially to the system of CONCORD and INDEX features proposed by Halloway King and Dalrymple (2004). However, its whole explanation requires the use of constraints in order to explain the coordinate patterns of the language.
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Dedieu, Philippe. "Dynamique de coordination chez l'homme : de la coordination intra-membre à la coordination inter-membres." Toulouse 3, 2011. http://thesesups.ups-tlse.fr/1689/.
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La locomotion, comme tous les mouvements humains, implique l'organisation et le contrôle de l'ensemble des composantes du corps. Ce travail de thèse s'intéresse à la dynamique de coordination chez l'homme, qu'elle soit entre les articulations d'un même membre ou entre les articulations de membres différents. La première partie s'intéresse à la coordination intra-membre et aux effets de l'apprentissage ou d'antécédents traumatiques légers sur la dynamique de coordination. Les résultats mettent en évidence une stabilité importante de cette coordination avec des ajustements modérés liés aux modifications de contraintes par l'expertise lors de la course ou par les conséquences de lésions articulaires modérées. La seconde partie aborde la coordination entre les ceintures pelvienne et scapulaire lors de la locomotion et les effets de l'absence de participation des bras et de changement d'allure de déplacement. Les résultats montrent une grande flexibilité de cette coordination avec un basculement d'une coordination en anti-phase (considérée comme mature) vers une coordination en-phase en l'absence de participation des bras à la marche ou à la course. D'autre part, le passage de la marche à la course induit un renforcement de la coordination entre les ceintures avec une phase relative se rapprochant des valeurs canoniques. Enfin, la présence de patron en-phase dans la condition la plus spontanée de déplacement (marche avec balancement des bras) semble indiquer la possible bimodalité de cette coordination. La troisième partie aborde la coordination entre les quatre membres deux à deux et les conséquences des effets liés à la gravitation en fonction de la position des segments corporels. Si les principes directionnel et musculaire sont vérifiés lorsque les groupes musculaires agonistes sont sollicités en priorité, ils ne peuvent expliquer l'absence de patron de coordination préférentiel lorsque les membres sont soumis de façon symétrique aux effets gravitationnels. La précision et la stabilité des patrons de coordinations apparaissent identiques voire améliorées lorsque les muscles agonistes et antagonistes sont sollicités de façon symétrique. Nous avons ainsi montré que la coordination intra-membre apparaissait comme étant très stable au point que sous l'effet de contraintes elle ne changeait pas de patron de coordination. En revanche, la coordination inter-membre, en particulier entre les ceintures pelvienne et scapulaire, apparait beaucoup plus flexible permettant une meilleure adaptation aux modifications de contraintesLocomotion, as every human movement, implies an organization and the control of all the body limbs. The aim of the present thesis is to study human intralimb and interlimb coordination. Intralimb coordination is first studied through the effects of learning and through of previous moderate joint traumas. Results show that coordinative stability is maintained through moderate adjustments in the dynamic of coordination. Intergirdle coordination while walking and running with or without arm oscillation is then studied. Results show coordinative flexibility with possible transition from anti-phase coordination (considered as mature) to in-phase coordination when the arms are interlocked over the chest. Moreover, change of gait pattern (from walking to running) entails more canonical values for relative phase. Surprisingly, the presence of in-phase patterns in the most usual anti-phase coordination suggests a bimodality of coordination. Finally, interlimb coordination between the four limbs studied by pairs is studied, particularly the consequences of gravitational forces on the interlimb coordination. If both directional and muscular principles are confirmed in a usual condition when most work is accomplished by anti-gravitational muscular groups, they cannot explain the lack of preferential pattern when ant-- and agonist muscles are involved in a fairly symmetric fashion. In this situation, coordination patterns are more accurate and stable. Intralimb coordination seems to be stable despite modifications in the constraints whereas interlimb coordination is more flexible, particularly intergirdle coordination, a prerequisite for better adaptation
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Best, Jim. "Factors and Processes Underlying Increases of Relational Coordination in Task-Coordinating Groups." Thesis, Saybrook University, 2018. http://pqdtopen.proquest.com/#viewpdf?dispub=10688757.
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Relational capacity within cross-functional groups is increasingly understood to mediate a variety of performance outcomes. Relational coordination, a specific measure and theory of organizational performance in interdependent cross-functional groups with integrated tasks, has been associated with better performance outcomes especially under conditions of uncertainty and time pressure (Gittell, 2016). Understanding underlying factors and processes that contribute to increased relational coordination in terms of opportunity tension (Lichtenstein, 2014), focus theory (Feld, 1981), and positive organizational scholarship (Dutton & Ragins, 2007) from a multilevel research perspective (Kozlowski & Klein, 2000) may extend the theory and offers the possibility of designing more effective change interventions.
This single exploratory case study focused on a hospital Intensive Care Unit (ICU) that had demonstrated increased relational coordination as a result of change interventions. Case study method was suited to this “how” and “why” research question. During a single week, 15 ICU participants were interviewed on-site. Video interviews of 8 consultants, expert in relational coordination interventions from a variety of settings, situated the case in a larger context.
Transcripts were coded producing 35 descriptors that were ranked by frequency. The following 5 analytic categories of significant factors and processes emerged: (a) opportunity tension, (b) relational factors, (c) sensemaking, (d) focal activity, and (e) contextual factors. Additionally, 2 emergent themes developed: (a) factors and processes are causally linked in a mesh of interdependency, and (b) occur at multiple levels and multiple scales.
The major contribution of this study was an interoperability model of the 5 analytic categories of factors as a multilevel causal mesh to increase relational coordination. Contextual factors help create the container for focal activities that build relationships and the safety for continuous learning and sensemaking. At every point in the process, opportunity tension stimulated action. The analytic category model led to 22 recommendations that inform future change intervention designs. More specific research into each of the 5 analytic categories is needed to validate the findings and increase the resolution of how the factors are involved in the processes. Exciting future directions include leveraging positive organizational scholarship and harvesting relational coordination field practices to deepen theory.
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Aoki, Traci. "Dementia care coordination." Thesis, Boston University, 2013. https://hdl.handle.net/2144/12044.
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Thesis (M.A.)--Boston UniversityBackground: Dementia is a chronic, irreversible condition that currently affects millions of Americans. With increasing life expectancies and an aging population, it is predicted that this number will triple within the next fifty years, possibly affecting 16 million Americans by 2050. The majority of care for these patients is provided by informal caregivers, usually their spouses or children. However, studies have shown that most informal caregivers feel they need more information about the disorder and the services available to help them, as well as on how to effectively care for their family member. Caring for a dementia patient is more stressful and burdensome than caring for someone who is solely physically impaired. Dementia caregivers experience higher rates of anxiety and depression, less time for personal activities, and greater difficulties maintaining jobs. Thus, interventions that provide caregivers with support and train them to properly care for dementia patients can be beneficial for both the patients and their families by reducing the adverse effects caregiving has on the caregiver’s mental and physical health while also improving the patient’s quality of care. Purpose: The purpose of this study is to evaluate the effects of the Alzheimer’s Association’s Dementia Care Coordination intervention on dementia patients and their caregivers. This study will determine whether the intervention improves the qualities of life of patients and caregivers, lowering their depression and hospitalization rates while also reducing caregivers’ levels of burden, distress, and anxiety.
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Moltmann, Friederike. "Coordination and comparatives." Thesis, Massachusetts Institute of Technology, 1992. http://hdl.handle.net/1721.1/12896.
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Hulsey, Sarah McNearney. "Focus Sensitive Coordination." Thesis, Massachusetts Institute of Technology, 2008. http://hdl.handle.net/1721.1/45897.
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Thesis (Ph. D.)--Massachusetts Institute of Technology, Dept. of Linguistics and Philosophy, 2008.Includes bibliographical references (p. 114-118).
This thesis investigates the role of the Focus Sensitive Operators (FSOs) even and also when found inside of a coordination. Coordinations of this form are called Focus Sensitive Coordinations (FSC) and include or even, and even, and also, not only...but also, let alone, and as well as. I argue that let alone and as well as are composed of a coordination component and an (overt or covert) FSO adjoined to the left-hand coordinate. This analysis, taken together with Karttunen (1973)'s analysis of presupposition projection in disjunction, accounts for the fact that the existential presupposition of even does not project in an or even sentence, but it does in a let alone sentence. It is further shown that Focus Sensitive Coordination has a restricted distribution relative to ordinary coordination. In particular, FSC is generally possible only with propositional coordinates or coordinates that can be derived from propositional coordinates by way one of the kinds of ellipsis that can target coordination. Apparently smaller coordinates are subject to a range of prohibitions on remnants for gapping. This can be accounted for by a particular lexical entry for the FSOs and a prohibition against movement of the FSOs. Furthermore, a restriction on coordinations containing even adjoined to a noun phrase can be accounted for if we treat the resulting phrase as a generalized quantifier. Evidence from FSC also provides a new argument in favor of a treatment of even as being ambiguous between ordinary even and an NPI even (Rooth 1985).
(cont.) It is shown that an alternative treatment which achieves the NPI-like meaning by QR of even above a downward-entailing operator (Karttunen and Peters 1979) cannot account for the FSC cases where even is found inside of a coordination. That theory incorrectly predicts that coordinations in which even is associated with the less likely disjunct should be as grammatical as those in which it is associated with the more likely one. Finally, I provide an account of a scope asymmetry between conjunction and disjunction in gapping and show that, together with a pragmatic entailment that arises from one of the presuppositions of even, this provides an account for the fact that the scope of disjunction in FSC is restricted in a way that the scope of ordinary disjunction is not.
by Sarah McNearney Hulsey.
Ph.D.
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Mandelkern, Matthew. "Coordination in conversation." Thesis, Massachusetts Institute of Technology, 2017. http://hdl.handle.net/1721.1/112421.
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Thesis: Ph. D. in Philosophy, Massachusetts Institute of Technology, Department of Linguistics and Philosophy, 2017.Cataloged from PDF version of thesis.
Includes bibliographical references (pages 199-207).
I give an account of the meaning of epistemic modals-words like 'might' and 'must', on a broadly epistemic interpretation-and how speakers use them to coordinate on their information. I begin by exploring what epistemic modals mean. Motivated by embedding data which are problematic for almost all existing accounts, I develop a new semantics for epistemic modals which I call the bounded theory. The bounded theory comprises a standard relational semantics together with a constraint which entails that local information is always taken into account in the evaluation of epistemic modals. I argue that the bounded theory makes sense of the subtle embedding behavior of epistemic modals-thus providing an adequate account of their meaning-and sheds new light on the way that local information is structured in natural language. In Chapter 2, I turn to the question of how speakers use epistemic modals to coordinate on their common information. I argue that we can make sense of the characteristic dynamics of epistemic modality within a relational semantic framework (like the one given in Chapter 1), together with a contextualist approach to the dynamics of conversation. The key to doing so is to take the relation in question to be determined by the interlocutors' prospective common attitudes. Chapter 3 explores the contribution of 'must'. Assertions of -Must p-1 and assertions of p alone seem to have the same basic goal, and yet their felicity conditions subtly differ. I argue for a new characterization of those differences, and a broadly pragmatic explanation of those differences based on the approach to epistemic modals advocated in the preceding chapters. In Chapter 4, I return to semantic questions. I develop formal tools to compare the expressive power of semantic theories with respect to the embedding data which they can account for. These tools show that the relational theory can account for all the embedding data which recent revisionary theories can account for, but not vice versa, a fact which necessitates a substantial shift in perspective on the debate regarding the semantics of epistemic modals.
by Matthew Mandelkern.
Ph. D. in Philosophy
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Torre, Dominique. "Monnaie et coordination." Nice, 1998. http://www.theses.fr/1998NICE0065.
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L'echange assure une part importante de la reallocation des ressources. La monnaie y opere comme un moyen de coordonner les plans. Ce travail met en relief deux modes d'apprehension des fonctions reallocatives de la monnaie, au sein de la microeconomie monetaire depuis l'apres-guerre. Le premier regarde la monnaie comme un facteur contribuant - de facon importante mais non exclusive a la coordination des plans individuels, en cas d'incompletude des marches et de frictions dans les echanges. Mediocre reserve des valeurs, la monnaie peut participer a la reallocation intertemporelle, sans garantir cependant l'existence, l'optimalite et l'unicite des equilibres. Econome en couts de transaction, elle facilite la realisation des echanges sans effacer totalement les defauts de coordination dus aux frictions. Le second concede a la monnaie le role - indispensable, sinon exclusif - de permettre la coordination. Logee dans la contrainte de liquidite, elle bride un peu les transactions. L'origine de cette contrainte n'est cependant pas explicite : ni les restrictions legales, ni une approche spatiale ne la justifient tandis qu'une conception endogeneiste des flux monetaires la remet en cause. La monnaie s'exprime plus volontiers dans l'hypothese d'echanges decentralises. Les modeles dits + de prospection ; fournissent un cadre a son analyse. Dans le prolongement des intuitions de jevons et surtout de menger, on envisage sa genese, en tant que bien le plus echangeable par ses proprietes naturelles ou par sa reconnaissance generale. Les insuffisances de ces deux directions d'analyse en appellent a une meilleure comprehension des conditions d'emergence et d'evolution des institutions, coordonnees aux actions individuelles dans le cadre d'un regime monetaireMarkets play an important part in the reallocation of ressources. They involve money as a means of coordinating the plans of individual agents. This work offers two alternative lines of representation of the reallocative functions of money, in monetary microeconomics, since the post-war period. According to the first line of thought, money is considered as an important but not exclusive way of contributing to the coordination of individual plans, in the case of incompleteness and when frictions exist. An inadequate store of value, money can however participate in intertemporal reallocation without ensuring though the existence, the optimality and the unicity of equilibria. Moreover, by economising in transaction costs, it allows exchanges to be realized, without eliminating the coordination failures induced by market imperfections. Following the second approach, money as the essential and quasi-exclusive function of rendering coordination possible. Encapsulated in a liquidity constraint it bounds to some extent transactions. However, the origin of the liquidity constraint is not explicit: neither legal restrictions nor a spatial approach can justify it, while an endogeneist conception of monetary flows challenges it. Money is naturally involved when exchange is decentralised. Search models provide an appropriate framework for the analysis of these kinds of markets. In the line of jevons's and monger's intuitions, emergence of money, seen as the most exchangeable good, is considered as a consequence of natural properties or its general recognition. The disclosed limits of these two approaches call for an improvement of the understanding of the emergence and evolutionary conditions of monetary institutions, coordinated with the individual behaviours in a monetary regime
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Pho, Edwin. "Overcurrent coordination study." Click here to view, 2009. http://digitalcommons.calpoly.edu/eesp/21/.
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Thesis (B.S.)--California Polytechnic State University, 2009.Project advisor: Ali Shaban. Title from PDF title page; viewed on Mar. 10, 2010. Includes bibliographical references. Also available on microfiche.
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Epps, Susan Bramlett, Robert C. Barnhart, Mary Jo Davenport, and Vey M. Norquist. "Developmental Coordination Disorder." Digital Commons @ East Tennessee State University, 2003. https://dc.etsu.edu/etsu-works/2556.
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For the last 100 years, poor motor coordination in children has been recognized as a developmental problem. As early as 1937, these children were classified as “clumsy.” Since then, other terms such as “motorically awkward,” “motor impaired,” and “physically awkward” have been used to describe these children, and the terms “developmental apraxia” and “perceptual motor difficulties” have been used to characterize this developmental problem. Since the 1994 International Consensus Conference on Children and Clumsiness, the term “developmental coordination disorder” (DCD) has been used to describe the condition of children with motor incoordination.
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Trinh, Thi Mai Linh. "Switchable Coordination Nanoparticles." Thesis, Université Paris-Saclay (ComUE), 2019. http://www.theses.fr/2019SACLS171/document.
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Les travaux de recherche de cette thèse concernent sur la préparation et l’étude des propriétés physiques de nanocristaux commutables basés sur des matériaux de type transition de spin et photomagnétiques potentiellement candidats en tant que nanocapteurs. Les nanocristaux à transition de spin appartiennent à la famille des réseaux de coordination basés sur les chlatrates de Hoffman [Fe(pyrazine)] [Pt(CN)4]. L’étude se concentre sur le contrôle de la taille des nano-bâtonnets et sur l’étude de leur bistabilité thermique en relation avec leur environnement et de leur interaction avec les molécules invitées. Nous montrons que la croissance des nanocristaux en forme de bâtonnets est obtenue en présence de nanoparticules préformées de 2 à 3 nm de l’analogue du bleu de Prusse CsNiCr(CN)6, censées diriger la croissance anisotrope des objets. Les nano-bâtonnets formés sont stables pendant une longue période en solution en raison de leurs charges négatives. Ils possèdent une hystérèse thermique assez large centrée sur la température ambiante. La largeur et la position en température de l’hystérèse thermique dépendent de la nature de l'environnement des nanocristaux. Avec des sels d'ammonium à longue chaîne (tels que le bromure de dodécyltrimentylammonium ou le bromure de dexhyl triméthyl ammonium), l’hystérèse thermique se rétrécit et se décale vers les basses températures. Avec des chaînes alkyles plus courtes, le décalage de l’hystérèse est plus petit sans que sa largeur ne change beaucoup. Lorsque les tiges sont noyées dans une matrice de silice rigide, la transition est déplacée à très basse température et l'hystérésis thermique disparaît. L'insertion de molécules de I2 conduit à une hystérèse thermique plus large centrée sur une température plus élevée que la température ambiante. Les nanoparticules photomagnétiques appartiennent à la famille des réseaux bimétalliques d’analogues du bleu de Prusse (PBA) basés sur le CoFe. Ce type de matériaux peut subir une transition thermique de l'état paramagnétique CoIIFeIII à l'état diamagnétique CoIIIFeII. L'état de haute température peut ensuite être rétabli par un éclairage lumineux à basse température. Nous nous sommes concentrés sur trois types de nanoparticules de CoFe contenant les ions alcalins CsI (11 nm) et RbI avec deux tailles différentes : 30 et 80 nm pour ces dernières. La taille des objets était contrôlée par différents paramètres tels que la nature de l'ion alcalin, la concentration des précurseurs et leur stœchiométrie. La combinaison de différentes techniques, telles que les spectroscopies électronique et infrarouge, associée à la spectroscopie par résonance paramagnétique électronique et à la diffraction des rayons X sur poudre permet de suivre l’évolution de la composition des nanoparticules avec le temps en solution à la température ambiante. L’étude de l’évolution conduit à la conclusion générale que le phénomène de transfert d’électrons de CoII à FeIII se produit en solution pendant plusieurs jours avant que les objets n’atteignent leur état thermodynamique stable qui dépendait de la nature de l’ion alcalin et de la taille des objets. Le comportement (photo)magnétique a ensuite été étudié à l’état solide pour différents temps d’évolution des trois types de particules, ce qui a permis de proposer un mécanisme qualitatif de leur formation en solutionThe research work in this thesis is focused on the preparation and the study of the physical properties of switchable nanocrystals based on spin crossover and photomagnetic materials that are potential candidates as nanosensors. The spin crossover nanocrystals belong to the coordination network family based on the Fe(II) Hoffman chlatrates [Fe(pyrazine)][Pt(CN)4]. The study is focused on controlling the size of self-standing nanorods and on the investigation of their thermal bistability in relation with their environment and their interaction with guest molecules. We show that the growth of the rod-shaped nanocrystals is obtained in the presence of preformed 2-3 nm nanoparticles of the Prussian Blue Analogue CsNiCr(CN)¬6 that is thought to direct to anisotropic growth of the objects. The formed rods can be stable for a long time due to their negative charge. They possess a rather wide thermal hysteresis centered around room temperature. The width and position in temperature of the thermal hysteresis depends on the nature of the environment of the nanocrystals. With very long ammonium salt (such as dodecyl trimetylammonium bromide or dexhyl trimethyl ammonium bromide), the thermal hysteresis becomes narrower and shifts to low temperature. While with shorter alkyl chains, the shift of the hysteresis is smaller without much change in its width. When the rods are embedded in a rigid silica matrix, the transition is shifted to very low temperature and the thermal hysteresis vanishes. The insertion of I2 molecules leads to a wider thermal hysteresis centered at a higher temperature.The photomagnetic nanoparticles belong to the bimetallic Prussian Blue Analogues (PBAs) family based on CoFe. This type of materials may undergo a thermal transition from the paramagnetic CoIIFeIII state to the diamagnetic CoIIIFeII one. The high temperature state can then be restored at low temperature by light illumination. We focused on three types of CoFe PBAs nanoparticles containing the CsI (11 nm) and the RbI alkali ions with two different sizes 30 and 80 nm for the latter. The size of the objects was controlled by different parameters such as the nature of the alkali ion, the concentration of the precursors and their stoichiometry. The combination of different techniques such as electronic and infra spectroscopies together with Electron Spin Resonance Spectroscopy and X-ray powder diffraction allows following the evolution of the nanoparticles’ composition with time in solution at room temperature. The evolution study leads to the general conclusion that the electron transfer phenomenon from CoII to FeIII occurs in solution during several days before the objects reach their thermodynamic stable state that was found to depend on the nature of the alkali ion and on the size of the objects. The (photo)magnetic behavior was then investigated in the solid state for different evolution time of the three types of particles, which allowed proposing a qualitative mechanism of their formation in solution
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Vidal, Anthony D. "Effects of attentional focus cues on movement coordination and coordination variability." Thesis, California State University, Long Beach, 2016. http://pqdtopen.proquest.com/#viewpdf?dispub=10096061.
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The purpose of this study was to examine the effects of FOA cues on movement coordination of the lower extremity during a standing long jump. A modified vector coding analysis of hip/knee and ankle/knee coordination was used to evaluate the influence of FOA cues on coordination patterns and coordination variability. Results indicated no main effect of coordination patterns between FOA conditions for ankle/knee coordination F(1,19) = 0.43, p = 0.52 or coordination variability F(1,19) = 0.00, p = 0.98 and no main effect of hip/knee coordination patterns F(1,19) = 2.48, p = 0.13 or coordination variability F(1,19) = 5.0, p = 0.49. Participants did jump significantly further under and external FOA (2.27 ± .38m) than the internal FOA (2.16 ± .37m, p = 0.035). It is possible that manipulation of arm swing coordination or landing strategies are influencing the changes in jump distances between FOA conditions.
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Lee, Joon Suk. "Micro-Coordination: Looking into the details of face-to-face coordination." Diss., Virginia Tech, 2013. http://hdl.handle.net/10919/51119.
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Sociality is one of the most fundamental aspects of being human. The key to sociality is coordination, that is, the bringing of people "into a common action, movement or condition" [134]. Coordination is, at base, how social creatures get social things done in the world. Being social creatures, we engage in highly coordinative activities in everyday life"two girls play hopscotch together, a group of musicians play jazz in a jam session and a father teaches a son how to ride a bicycle. Even mundane actions such as greetings, answering a phone call, and asking a question to ask a question by saying "Can I ask you a question?" are complex and intricate. Actors not only need to plan and perform situated actions, but also need to process the responding actions----even unforeseen ones----from the other party in real time and adjust their own subsequent actions. Yet, we expertly coordinate with each other in performing highly intricate coordinative actions.In this work, I look at how people coordinate joint activities at the moment of interaction and aim to unveil a range of coordinative issues, using "methodologies and approaches that fundamentally question the mainstream frameworks that define what counts as knowledge" (p.2, [80]) in the field of Computer Supported Cooperative Work (CSCW). To investigate computer mediated interactions among co-located people, I examine different interactional choices people make in the course of carrying out their joint activities, and the consequences of their choices.
By investigating co-located groups as they played a collaborative, problem-solving game using distributed technologies in experimental settings, I (1) provide critical case reports which question and challenge non-discussed, often-taken-for-granted assumptions about face-to-face interactions and coordination, and (2) tie the observations to the creation of higher level constructs which, in turn, can affect subsequent design choices.
More specifically, I ran two studies to look at how co-located people coordinate and manage their attention, tasks at hand, and joint activities in an experimental setting. I asked triads to work on a Sudoku puzzle collectively as a team. I varied support for the deictic mechanism in the software as well as form factors of mediating technology.
My research findings show that:
(1) different tools support different deictic behaviors. Explicit support for pointing is desirable to support complex reference tasks, but may not be needed for simpler ones. On the other hand, users without sophisticated explicit support may give up the attempt to engaged in complex reference.
(2) talk is diagnostic of user satisfaction but lack of talk is not diagnostic of dissatisfaction. Therefore, designers must be careful in their use of talk as a measurement of collaboration.
(3) the more people talk about complex relationships in the puzzle, the higher their increase in positive emotion. Either engaging with the problem at hand is rewarding or having the ability to engage with the problem effectively enough to speak about it is engaging.
(4) amount of talk is related to form factor. People in both computer conditions talked less about the specifics oF the game board than people in the paper condition, but only people in the laptop condition experienced a significant decrease in positive emotion.
(5) different mediating technologies afford different types of non-response situations. The most common occurrences of non-responses were precipitated by speakers talking to themselves in the computer conditions. Participants did not talk to themselves much in the paper condition.
Differences in technology form factors may influence people\'s behaviors and emotion differently. These findings represent a portrait of how different technologies provide different interactional possibilities for people.
With my quantitative and qualitative analyses I do not make bold and futile claims such as "using a highlighter tool will make users collaborate more efficiently," or "making people talk more will make the group perform better." I, instead, illustrate the interactional choices people made in the presence of given technological conditions and how their choices eventuated in situ.
I then propose processlessness as an idea for preparing designs that are open to multiple interactional possibilities, and nudgers as an idea for enabling and aiding users to create and design their own situated experiences.
Ph. D.
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Volman, Michiel Joannes Maria. "Rhythmic coordination dynamics in children with and without a developmental coordination disorder." [S.l. : [Groningen] : s.n.] ; [University Library Groningen] [Host], 1997. http://irs.ub.rug.nl/ppn/163776687.
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Charoy, François. "Coordination explicite d'activités coopératives." Habilitation à diriger des recherches, Université Henri Poincaré - Nancy I, 2008. http://tel.archives-ouvertes.fr/tel-00338916.
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La coordination d'activités coopératives est aujourd'hui une préoccupation importante dans un contexte globalisé où les équipes travaillent de plus en plus de façon distribuées dans le temps, l'espace et dans les organisations. Fournir un support sur permettant la modélisation et le contrôle de l'exécution de ces activités fait partie de nos préoccupations depuis plusieurs années. Le problème a été abordé de plusieurs façons, en particulier en essayant d'adapter les modèles issues du monde de la gestion des procédés pour tenter de leur donner des qualités de flexibilité et d'agilité aussi bien sur les modèles que sur l'exécution. Ce travail a également donné lieu à une expérimentation en situation sur la coopération pour comprendre les mécanismes humains sous-jacent à la coopération. Il a également eu pour résultat l'implantation d'un moteur de workflow flexible aujourd'hui en production.
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Noack, Cassandra, and n/a. "Studies in Coordination Chemistry." Griffith University. School of Science, 2003. http://www4.gu.edu.au:8080/adt-root/public/adt-QGU20031030.145610.
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The research reported in this thesis was carried out in Brisbane, Australia and Calgary, Canada. The aim of the research conducted in Brisbane was to prepare a series of copper(I) and ruthenium(II) based complexes incorporating a hemilabile phosphine ligand and to determine whether or not these compounds possessed catalytic activity. The history, uses, properties and recent work incorporating hemilabile phosphine ligands is discussed in detail as well as the application of hemilabile ligands to atom transfer radical polymerization (ATRP) and the usefulness of the 'windscreen wiper' action of these ligands in polymerization. The literature synthesis and characterization of four hemilabile phosphine ligands is reported with modifications. The (2-chlorophenyl)diphenylphosphine ligand was prepared via a Grignard reaction giving a 11% yield. The (2-bromophenyl) diphenylphosphine ligand was prepared by reaction of 2-bromoiodobenzene with Ph2PSiMe3 in the presence of a palladium catalyst (MeCN)2PdCl2 which yielded 50% product. The 1-chloro-2-diphenylphosphinoethane ligand was prepared following the generation of a lithium diphenylphosphide which was added to 1,2-dichloroethane to give a 43% yield of product. The (2-benzoic-acid)diphenylphosphine ligand was prepared by hydrolysis of (2-methyl-ester-phenyl)diphenylphosphine. Following acidification of the methyl ester phosphine with HCl, the desired product was isolated in 88% yield. The synthesis and characterization of a series of copper(I) based complexes incorporating the prepared phosphine ligands involved reaction in CH3CN of the appropriate ligand with copper halides as starting material. Solution state 31P NMR and mass spectrometry were used to study many of these complexes in the solution state, whilst microanalysis, 31P CP MAS NMR and single crystal X-ray diffraction studies were used to study their solid state properties. The complexes of the type bis(2-halophenyl)diphenylphosphine copper halide were found to be three coordinate with non-chelating ligands and to be isostructural with the previously studied bis(2-methylphenyl)diphenylphosphine copper halide complexes. The synthesis and characterization of ruthenium(II) based complexes incorporating hemilabile phosphine ligands involved reaction of the appropriate ligands in MeOH with RuCl3.3H2O or RuCl2(DMSO)4 as the ruthenium source. Modes of characterization included solution state 31P NMR, mass spectrometry, microanalysis and single crystal X-ray diffraction studies. All ruthenium(II) based complexes were found to incorporate the hemilabile ligands in a chelating mode resulting in 6 coordinate structures. The preliminary polymerization testing of MMA in the presence of the copper(I) and ruthenium(II) based complexes has been reported. All complexes successfully polymerized the monomer and the resulting polyMMA showed polydispersity values ranging from moderate (3.1) to very high (6.7). Chapter 7 discusses research conducted over a 6 month period at the University of Calgary, Canada under an International Resident Fellowship award. This work involved the synthesis and characterization of scandium(III) and yttrium(III) based complexes incorporating a chelating amido-imine ligand, as potential olefin polymerization catalysts.
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Te, Velde John R. "Coordination and German syntax /." Thesis, Connect to this title online; UW restricted, 1988. http://hdl.handle.net/1773/9935.
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Allars, M. N. "Coordination and administrative discretion." Thesis, University of Oxford, 1985. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.371505.
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Srikanth, Kannan. "Coordination in Distributed Organizations." Thesis, London Business School (University of London), 2007. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.498167.
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Aberti, Federica. "Fashion and Coordination Games." Thesis, University of East Anglia, 2010. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.520445.
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Wilkinson, Andrew. "Type representations and coordination." Thesis, University of York, 2007. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.489211.
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Open coordination systems are a means of performing distributed computing where the processes in the system are not known to each other until the system is run. In an ideal world these processes could be of any language and running on any hardware or operating system. Traditionally systems have limited processes either to a single language or so that they can only communicate using simple types.
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BERG, LINA. "User-Customized Test Coordination." Thesis, KTH, Maskinkonstruktion (Inst.), 2013. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-142552.
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Inom NE-avdelningen på Scania utvecklas drivlinan till lastbilar och bussar. Gruppen NEVT ansvarar för att verifiera och validera drivlinans styrsystem i helbil. Processen kring att koordinera testning i kompletta fordon har studerats. Målet var att definiera ett program som kan verka för att underlätta arbetet i att koordinera testning och som är anpassat efter användaren. I arbetet att identifiera behovet genomfördes intervjuer, observationer samt studier av dokument som används i processen att koordinera.När enheter testas tillsammans i helbil krävs det att flera grupper samarbetar för att kunna testa på samma fordon. För att få ut så mycket som möjligt av testningen fordras det att grupper samarbetar och anpassar sig efter varandras behov vilket medför en föränderlig testprocessen. Studien visade att det är svårt att ha en bra överblick av testningen och att det finns ett behov av att samla och sammankoppla data. Det framgick också att information behöver bli mer lättillgänglig och delas mellan flera instanser för att kunna utnyttja resurserna bättre. Idag är data fördelad i otaliga dokument utspridda inom organisationen.Ett förslag på ett system har tagits fram, där det beskrivs vad systemet ska göra och vad det ska bidra med. Det fastställdes att det, i systemet, ska gå att: Utföra planering och dokumentera vad som utförs Hantera krav och avvikelser Se förverkligandet av krav Sammankoppla data och generera överblicksbilder av planering och teststatusGenom att låta alla berörda få tillgång till systemet kan data tillhandahållas och inhämtas av olika användare och en mer transparent process möjliggörs. På så vis ökar möjligheten till insyn och därtill att ta beslut som bidrar till en högkvalitativ testning.Kartläggningen visar att det finns ett behov av ett system inom avdelningen NE, men även att det kan finnas fler intressenter inom Scanias organisation. Troligtvis skulle ett system som verkar för flera avdelningar, i syfte att samordna testkoordinering, göra störst nytta. Rekommendationen är ändå att, som första steg, göra en mindre pilotversion av ett system som kan testas inom en avdelning. Därmed kan förbättringar göras innan systemet implementeras inom flera instanser.The NE-department at Scania develops the powertrain control system and the group NEVT is responsible for verification and validation of the powertrain control system in complete vehicles. The process of coordinating tests on complete vehicles has been investigated. The goal was to define a system that facilitates the work of test coordination and that is customized to the user. Requirements were gathered through interviews, observations and by studying documents.When units are tested together on complete vehicles, several groups are forced to collaborate since tests are conducted on the same test vehicles. In order to optimize testing, the groups are required to adapt to each other’s needs, which results in a continuously changing test process. The study showed that there are difficulties overviewing the testing and that there is a need to collect and link data. It was also discovered that the acquired information needs to be more accessible and more easily shared between multiple test groups in order to better manage the resources. Today, data is dispersed in numerous documents that are scattered throughout the organization.A proposal that describes what the system shall enable and contribute with has been developed. It was stated that the future system shall be able to: Perform planning and document what is conducted Manage requirements and deviations Show achievement of requirements Link data and generate overviews of planning and test statusBy allowing all concerned actors access to the system, data will be provided and retrieved by different users and offer a more transparent process. This increases the possibility of insight and the ability to make decisions that generate high-qualitative testing.The survey shows that there is a need for a system within the NE-department but also that there might be further stakeholders in the organization. The greatest benefit would probably be achieved if the system was designed for several departments in order to synchronize the test coordination. However, the recommendation is to make a limited pilot version to test within one department as a first step. The next step would be to make improvements before a more comprehensive version is implemented.
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Worster, Katy Lynn. "Coordination dynamics of walking." Thesis, University of Colorado at Denver, 2015. http://pqdtopen.proquest.com/#viewpdf?dispub=3702117.
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Although coordination has been identified as a fundamental element necessary for the successful achievement of walking, this aspect of gait has yet to be embraced into instrumented gait analysis, perhaps in part due to the lack of a normative reference and unfamiliarity of mathematical methods that are best suited to capture this essential behavior. Therefore, this work focused on expanding clinical gait analysis techniques by validating nonlinear methods that describe the influence of neurological control on the musculoskeletal system. This body of work investigated the coordination dynamics during gait in both prospective and retrospective subjects free of gait pathology, subjects with spastic cerebral palsy, and subjects with a lower limb amputation using motion capture and mathematical models to help elucidate the complexities of gait and enhance therapeutic interventions. This investigation quantified coordination strategies employed by an unimpaired subject when presented with various walking conditions and challenges mimicking various inhibitions associated with performing the task of swing limb advancement. Two novel indices of coordination dynamics were created to provide a concise metric and ease their inclusion into future research applications. The first normative reference dataset of these coordination measures was created from a large cohort of unimpaired subjects. While there is presently not a gold standard method for quantifying coordination during gait, the exciting correlations between the proposed measures and select clinical performance tasks indicate the coordination measures quantify essential inter-segmental coordination dynamics of walking. The theoretical pendular software model created shows swing limb advancement is not a purely passive motion, but instead an actively controlled motion. Comparisons between the various cohorts revealed the proposed measures of coordination are more suitable for characterizing motor control strategies contributing to a gait pattern, quantify organization of individual segments, identify mechanisms of change, and reveal the loci of impairment(s). The proposed measures of coordination dynamics are capable of distinguishing between different gait pathologies and patterns associated with altered limb advancement during the swing period of gait. Results from this multidisciplinary work have the strong potential to directly impact the clinical treatment of persons with aberrant coordination dynamics during gait.
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Mohd, Zin Abdullah Asuhaimi Bin. "Coordination of overcurrent protection." Thesis, University of Manchester, 1988. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.332239.
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Tahseen, Teymur. "Technology selection and coordination." Thesis, University of Cambridge, 2007. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.612989.
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Youn, Kyungmin. "Orchestrated Informal Care Coordination." Research Showcase @ CMU, 2016. http://repository.cmu.edu/theses/109.
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Kirkby, Julie. "Binocular coordination and dyslexia." Thesis, University of Southampton, 2009. https://eprints.soton.ac.uk/143333/.
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Developmental dyslexia is suggested to affect approximately 5-10% of the population (Habib, 2000). The most influential theory of dyslexia is the phonological-deficit theory of dyslexia (Liberman, 1973; Stanovich, 1988; Snowling, 2000). An alternative explanation is that visual deficits can lead to reading difficulties (e.g. Stein & Walsh, 1997). To date the findings are mixed regarding the extent of visual deficits within the dyslexic population. Whether these problems represent a cause, correlation or consequence of the reading difficulty also remains highly controversial. The data presented throughout this Thesis examined the possibility that reading difficulties, associated with dyslexia, are linked to poor binocular coordination. In three experiments binocular eye movements of adults, typically developing children and children with dyslexia were measured while they read sentences or scanned dot string targets. In these experiments findings of previous binocular studies were replicated. Specifically, fixation disparity was modulated by the amplitude of the preceding saccade and the fixation position on the screen regardless of whether fixations and saccades were targeted to dots or words. Additionally, during the dot scanning task adult’s binocular coordination was improved in relation to children’s, but no reliable differences were found between the three groups. Critically, a significantly greater magnitude of fixation disparity was found for dyslexic children compared to typically developing children and adults during the reading task alone. The existence of linguistically modulated differences in binocular coordination for dyslexic children is a novel finding. The patterns of results from the three experiments indicate that poor binocular coordination in dyslexic children is restricted to reading linguistic material. Clearly, this represents a stimulus specific deficit in regard to binocular coordination, for children with dyslexia.
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Marillier, Jean-François. "La coordination en allemand." Paris 4, 1990. http://www.theses.fr/1990PA040019.
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Notre propos est l'étude sémantique et syntaxique de la coordination en allemand contemporain, nous définissons la coordination comme une dénomination composée d'état(s) de choses, en accordant un importance particulière à la spécificité sémantique de la structure coordonnée, les divers operateurs de coordination sont classes à partir de deux critères : 1) opposition entre état de choses dénote simple ou compose, 2) coréférence ou non des propositions coordonnées, le croisement de ces deux critères permet de définir trois types de relations: 1) les structures disjonctives (oder) dénotent un état de choses simple, correspondant à l'un ou l'autre de choses dénotés par les propositions coordonnées, 2) les structures conjonctives (und, aber) dénotent un états de choses compose, constitue par la combinaison des états de choses individuelles dénotés par les propositions coordonnées, 3) les structures correctives (sondern) dénotent un état de choses simple, les propositions coordonnées étant coréférences : la première constitue une dénomination négative et la seconde une dénomination positive d'un même état de choses, l'interprétation de la coordination comme un calcul de valeur de vérité rend nécessaire de reconnaitre des valeurs de vérité spécifiques pour les propositions non assertives, ainsi que d'assimiler pour son interprétation sémantique la coordination de constituants de groupe syntaxique a une coordination de propositionsThe purpose of this research is the syntactic study of coordination in contemporary German, our concept of coordination is semantic. We define it as a device for building compound denominations of state(s) of things (facts) by insisting on the semantic specificity on the clause expressed by the coordinated structure. The various coordination operators are characterized with respect to two criteria : 1) the opposition between simple and complex facts, 2) the coreference of the coordinated clauses, the combination of those two criteria makes it possible to establish the existence of three types of coordination in German : 1) disjunctive structures (oder) denote a simple fact corresponding to either of the facts denoted in the constituent clauses since the coordinated clauses are not coreferent, 2) conjunctive (und, aber) denote a compound fact made up of the combination of the individual facts denoted by the constituent clauses. 3) corrective structures (sondern) denote a simple state of things since the constituent clauses are coreferent : the first one performs a negative denomination, the second one a positive denomination of the same fact, coordination can be interpreted as calculation on truth values, which makes it necessity to ascribe a specific truth value to the clauses contained in non-assertive utterances, finally, as regards its semantic interpretation the coordination of syntactic constituent must be reduced to coordination between clauses
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Vollmar, Anne Marie. "Screening of Eye Coordination." The Ohio State University, 2008. http://rave.ohiolink.edu/etdc/view?acc_num=osu1212005075.
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Rabell-Garcia, Enrique. "Fiscal coordination in Mexico." [Bloomington, Ind.] : Indiana University, 2006. http://gateway.proquest.com/openurl?url_ver=Z39.88-2004&rft_val_fmt=info:ofi/fmt:kev:mtx:dissertation&res_dat=xri:pqdiss&rft_dat=xri:pqdiss:3243785.
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Thesis (Ph.D.)--Indiana University, School of Public Environmental Affairs, 2006.Title from PDF t.p. (viewed Nov. 17, 2008). Source: Dissertation Abstracts International, Volume: 67-12, Section: A, page: 4698. Adviser: Robert Agranoff.
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Noack, Cassandra. "Studies in Coordination Chemistry." Thesis, Griffith University, 2003. http://hdl.handle.net/10072/366798.
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The research reported in this thesis was carried out in Brisbane, Australia and Calgary, Canada. The aim of the research conducted in Brisbane was to prepare a series of copper(I) and ruthenium(II) based complexes incorporating a hemilabile phosphine ligand and to determine whether or not these compounds possessed catalytic activity. The history, uses, properties and recent work incorporating hemilabile phosphine ligands is discussed in detail as well as the application of hemilabile ligands to atom transfer radical polymerization (ATRP) and the usefulness of the 'windscreen wiper' action of these ligands in polymerization. The literature synthesis and characterization of four hemilabile phosphine ligands is reported with modifications. The (2-chlorophenyl)diphenylphosphine ligand was prepared via a Grignard reaction giving a 11% yield. The (2-bromophenyl) diphenylphosphine ligand was prepared by reaction of 2-bromoiodobenzene with Ph2PSiMe3 in the presence of a palladium catalyst (MeCN)2PdCl2 which yielded 50% product. The 1-chloro-2-diphenylphosphinoethane ligand was prepared following the generation of a lithium diphenylphosphide which was added to 1,2-dichloroethane to give a 43% yield of product. The (2-benzoic-acid)diphenylphosphine ligand was prepared by hydrolysis of (2-methyl-ester-phenyl)diphenylphosphine. Following acidification of the methyl ester phosphine with HCl, the desired product was isolated in 88% yield. The synthesis and characterization of a series of copper(I) based complexes incorporating the prepared phosphine ligands involved reaction in CH3CN of the appropriate ligand with copper halides as starting material. Solution state 31P NMR and mass spectrometry were used to study many of these complexes in the solution state, whilst microanalysis, 31P CP MAS NMR and single crystal X-ray diffraction studies were used to study their solid state properties. The complexes of the type bis(2-halophenyl)diphenylphosphine copper halide were found to be three coordinate with non-chelating ligands and to be isostructural with the previously studied bis(2-methylphenyl)diphenylphosphine copper halide complexes. The synthesis and characterization of ruthenium(II) based complexes incorporating hemilabile phosphine ligands involved reaction of the appropriate ligands in MeOH with RuCl3.3H2O or RuCl2(DMSO)4 as the ruthenium source. Modes of characterization included solution state 31P NMR, mass spectrometry, microanalysis and single crystal X-ray diffraction studies. All ruthenium(II) based complexes were found to incorporate the hemilabile ligands in a chelating mode resulting in 6 coordinate structures. The preliminary polymerization testing of MMA in the presence of the copper(I) and ruthenium(II) based complexes has been reported. All complexes successfully polymerized the monomer and the resulting polyMMA showed polydispersity values ranging from moderate (3.1) to very high (6.7). Chapter 7 discusses research conducted over a 6 month period at the University of Calgary, Canada under an International Resident Fellowship award. This work involved the synthesis and characterization of scandium(III) and yttrium(III) based complexes incorporating a chelating amido-imine ligand, as potential olefin polymerization catalysts.Thesis (PhD Doctorate)
Doctor of Philosophy (PhD)
School of Science
Faculty of Science
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Chapman, Erich G. 1984. "Platinum coordination to RNA." Thesis, University of Oregon, 2010. http://hdl.handle.net/1794/11072.
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xix, 111 p. : ill. (some col.)Since discovery of its biological effects in the late 1960's, cisplatin (cis-diamminedichloroplatinum( II)) has become one of the most broadly-prescribed cancer drugs in use today. A majority of efforts to understand the metallobiochemistry of this drug have focused on describing the interactions of cisplatin-derived Pt(II) complexes with DNA. Drug binding to this "high value" cellular target is believed to trigger the apoptotic pathways that underlie cisplatin's cytotoxic effects. Although RNA is chemically similar to DNA and responsible for accurately transferring, regulating, and transforming the same genetic information that is stored within the DNA genome, surprisingly little is known about platinum(II) drug binding to RNA. Accordingly, the first three chapters of this dissertation describe efforts to address questions regarding cisplatin coordination to RNA on the molecular scale. Chapter I reviews fundamental aspects of how metal complexes interact with nucleic acids, highlighting the bioinorganic chemistry of platinum(II) antitumor drugs. This chapter also introduces the idea that drug binding to RNA may form an important part of how these complexes work in the cell. Chapter II describes cisplatin crosslinking between RNA nucleobases located on opposite sides of the internal loop of an RNA subdomain derived from the catalytic core of the spliceosome. Chapter III describes how platinum adducts disrupt the activity of RNA processing enzymes similar to those that are necessary for maturation, maintenance and recycling of the transcriptome. Chapter III also describes the reversal of RNA platination using thiourea. The chemistry of platinum(II) is also characterized by preferential coordination to sulfur ligands, or thiophilicity. Incorporating this property into RNA chemistry, Chapters IV and V describe the reaction of platinum(II) complexes with phosphorothioate-substituted RNAs. Chapter IV describes engineering platinum(II) crosslinks in the Hammerhead ribozyme through the targeting of a platinum(II) complex to a specific phosphorothioate substitution installed in the active site of this catalytic RNA. Chapter V outlines efforts to characterize the cleavage and isomerization reactions promoted by platinum(II) coordination to phosphorothioate-substituted RNAs. Finally, Chapter VI summarizes the insights gained throughout the course of our studies and provides an outlook on the future of platinum-RNA chemistry. This dissertation includes co-authored material and previously published results.
Committee in charge: Michael M. Haley, Chair; Victoria J. DeRose, Advisor; David R. Tyler; Andrew J. Berglund; Eric A. Johnson
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Willaime, Quentin. "Costly Remedial Actions Coordination." Thesis, KTH, Skolan för elektroteknik och datavetenskap (EECS), 2019. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-253198.
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The energy sector is evolving and the role of the Transmission System Operator (TSO)must adapt to these new changes. In fact, the energy transition modies both the natureof the production sources by integrating intermittent energies and the classical structureof the grid, going from a centralized topology to a distributed topology.In this particular context, the TSO has to balance production and demand while ensuringthat the system is operated in a safe and optimal manner. These new challengescan not be achieved by independently, it is necessary to introduce a strong coordinationand collaboration between European members. This desire to co-ordinate the operatingmethods of the system on a European scale as well as to harmonize the market in orderto favor exchanges, is pushed by the European Commission in the form of NetworkCodes. In order to maximize the exchanges between bidding zones, it is necessary tocalculate the available exchange capacity and assess potential risks for the grid by conductingjoint analyzes between neighboring countries. If there is a risk of congestion on anetwork element because of an excessive exchange between TSO, it is possible to managethis overload by activating measures called Remedial Actions.The legal framework requiresTSOs to establish a detailed coordination methodology for Capacity Calculation,Common Security Analyzes and activation of Remedial Actions.In addition, the activation of RA often leads to a signicant cost for the TSO concerned.These congestion management costs may arise especially in particular situations of highdemand, poorly estimated production or modied topology due to a fault. Given thatthese risks of congestions are sometimes induced by neighboring bidding zones, it isnecessary to also foresee a methodology for sharing these costs so as not to penalize theTSOs polluted by their neighbors.This thesis provides a detailed description of this process for a particular region ofEurope. Indeed, the region linking the west center to the east center is the heart ofthe European network and trade. This particular position induces many dicultiesand dierent methodologies to answer them. During this project I was led to analyzethese possibilities on dierent scenarios, propose improvements or new approaches. Inparticular, this report highlights the factors that have a strong inuence on the sharingof Remedial Actions costs in order to allow the TSOs members of this region to have abetter visibility and transparency on the consequences of such a methodology.Energisektorn utvecklas och Transmissionssystemoperatörens roll måste anpassas tilldessa nya förändringar. Faktum är att energitransitionen ändrar både produktionen av produktionskällorna genom att integrera intermittenta energier och den klassiska strukturen i nätet, från en centraliserad topologi till en distribuerad topologi. I detta speciella sammanhang måste TSO balansera produktion och efterfrågan medan ensäkerställa att systemet drivs på ett säkert och optimalt sätt. Dessa nya utmaningar kan inte uppnås oberoende, det är nödvändigt att införa ett starkt koordinerande samarbete mellan europeiska medlemmar. Denna önskan om att samordna systemets driftsmetoder på europeisk nivå samt att harmonisera marknaden för att främja utbyten drivs av Europeiska kommissionen i form av NetworkCodes. För att maximera utbytena mellan budgivningszonerna är det nödvändigt att beräkna den tillgängliga utbytesförmågan och bedöma potentiella risker för nätet genom att genomföra gemensamma analyser mellan grannländerna. Om det finns risk för trängsel på anetwork-elementet på grund av en överdriven växling mellan TSO, är det möjligt att hantera överbelastning genom att vidta åtgärder som kallas Remedial Actions. Den rättsliga ramen kräver att TSO: erna upprättar en detaljerad samordningsmetodik för kapacitetsberäkning, gemensam säkerhet Analyser och aktivering av avhjälpande åtgärder. Vidare leder aktiveringen av RA ofta till en betydande kostnad för den berörda TSO. Dessa kostnader för hantering av överbelastning kan uppstå speciellt i speciella situationer av highdemand, dålig uppskattad produktion eller modifierad topologi på grund av ett fel. Med tanke på att dessa risker för trängsel orsakas ibland av angränsande budgivningszoner är det nödvändigt att även förutse en metod för att dela dessa kostnader för att inte bestraffa dem som förorenas av sina grannar. Denna avhandling ger en detaljerad beskrivning av denna process för en viss region i Europa. Faktum är att regionen som kopplar västcentrum till östcentrum är hjärtat av det europeiska nätverket och handeln. Denna speciella position inducerar många svårigheter och olika metoder för att svara på dem. Under detta projekt ledde jag till att analysera möjligheter i olika scenarier, föreslå förbättringar eller nya tillvägagångssätt. I synnerhet betonar denna rapport de faktorer som har ett starkt inflytande på delningen av kostnaderna för avhjälpande åtgärder för att tillåta TSO: s medlemmar i denna region att ha bättre synlighet och insyn om konsekvenserna av ensådan metod.
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Keene, Frank Richard. "Aspects of coordination chemistry /." Title page, contents and abstract only, 1998. http://web4.library.adelaide.edu.au/theses/09SD/09sdk26.pdf.
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Casadei, Matteo <1977>. "Self-organising coordination systems." Doctoral thesis, Alma Mater Studiorum - Università di Bologna, 2009. http://amsdottorato.unibo.it/2116/1/casadei_matteo_tesi.pdf.
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Many research fields are pushing the engineering of large-scale, mobile, and open systems towards the adoption of techniques inspired by self-organisation: pervasive computing, but also distributed artificial intelligence, multi-agent systems, social networks, peer-topeer and grid architectures exploit adaptive techniques to make global system properties emerge in spite of the unpredictability of interactions and behaviour. Such a trend is visible also in coordination models and languages, whenever a coordination infrastructure needs to cope with managing interactions in highly dynamic and unpredictable environments. As a consequence, self-organisation can be regarded as a feasible metaphor to define a radically new conceptual coordination framework. The resulting framework
defines a novel coordination paradigm, called self-organising coordination, based on the idea of spreading coordination media over the network, and charge them with services to manage interactions based on local criteria, resulting in the emergence of desired and fruitful global coordination properties of the system. Features like topology, locality, time-reactiveness, and stochastic behaviour play a key role in both the definition of such
a conceptual framework and the consequent development of self-organising coordination services.
According to this framework, the thesis presents several self-organising coordination techniques developed during the PhD course, mainly concerning data distribution in tuplespace-based coordination systems. Some of these techniques have been also implemented in ReSpecT, a coordination language for tuple spaces, based on logic tuples and reactions to events occurring in a tuple space. In addition, the key role played by simulation and formal verification has been investigated, leading to analysing how automatic verification techniques like probabilistic model checking can be exploited in order to formally prove
the emergence of desired behaviours when dealing with coordination approaches based on self-organisation. To this end, a concrete case study is presented and discussed.
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Casadei, Matteo <1977>. "Self-organising coordination systems." Doctoral thesis, Alma Mater Studiorum - Università di Bologna, 2009. http://amsdottorato.unibo.it/2116/.
Full textAbstract:
Many research fields are pushing the engineering of large-scale, mobile, and open systems towards the adoption of techniques inspired by self-organisation: pervasive computing, but also distributed artificial intelligence, multi-agent systems, social networks, peer-topeer and grid architectures exploit adaptive techniques to make global system properties emerge in spite of the unpredictability of interactions and behaviour. Such a trend is visible also in coordination models and languages, whenever a coordination infrastructure needs to cope with managing interactions in highly dynamic and unpredictable environments. As a consequence, self-organisation can be regarded as a feasible metaphor to define a radically new conceptual coordination framework. The resulting framework
defines a novel coordination paradigm, called self-organising coordination, based on the idea of spreading coordination media over the network, and charge them with services to manage interactions based on local criteria, resulting in the emergence of desired and fruitful global coordination properties of the system. Features like topology, locality, time-reactiveness, and stochastic behaviour play a key role in both the definition of such
a conceptual framework and the consequent development of self-organising coordination services.
According to this framework, the thesis presents several self-organising coordination techniques developed during the PhD course, mainly concerning data distribution in tuplespace-based coordination systems. Some of these techniques have been also implemented in ReSpecT, a coordination language for tuple spaces, based on logic tuples and reactions to events occurring in a tuple space. In addition, the key role played by simulation and formal verification has been investigated, leading to analysing how automatic verification techniques like probabilistic model checking can be exploited in order to formally prove
the emergence of desired behaviours when dealing with coordination approaches based on self-organisation. To this end, a concrete case study is presented and discussed.
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Vu, Thi Huong Giang. "Coordination sécurisée des services." Phd thesis, Grenoble INPG, 2008. http://www.theses.fr/2008INPG0095.
Full textAbstract:
Une application à base de services est construite à partir d'activités ; chaque activité correspond à un appel (par le biais d'une infrastructure de communication) à une fonction exportée par un service existant. Les activités sont coordonnées par un plan précisant les instructions à réaliser. Pour sécuriser de telles applications à base de services, les travaux actuels se focalisent sur la sécurité au niveau des services utilisés et au niveau de la communication entre ces services. Cependant, les mesures de sécurité à ces niveaux se gèrent mal au niveau du plan de coordination. Cette thèse concerne la coordination sécurisée pour la sécurité des applications à base de services. Elle considère un niveau de sûreté de fonctionnement pour (i) les activités d'un plan de coordination ; (ii) les données échangées entre services ; et (iii) les fonctions de services à appeler. La coordination sécurisée est définie à partir de trois concepts clés : (i) les activités à exécuter avec certaines propriétés dans le cadre de la coordination sécurisée, (ii) les contraintes associées aux activités régissant différents aspects considérés de la coordination sécurisée ; et (iii) les journaux de coordination construits à base de preuves d'exécution des activités. Un plan de coordination sécurisée d'activités est donc décrit sous forme d'un ensemble d'activités dont les contraintes devant être satisfaites sont définies par des formules logiques bien formées, correctement associées, cohérentes et évaluables. L'exécution d'un tel plan correspond à exécuter ses activités en évaluant les contraintes. Elle consiste également à évaluer si les appels aux fonctions de différents services se sont bien passés. L'exécution d'un plan peut s'adapter aux nouveaux besoins et aux changements (de propriétés, de contraintes, d'évaluateurs de contraintes, etc. ) intervenant lors de l'exécution même du plan. Les contributions majeures de la thèse portent sur la définition d'un modèle pour la description de plan de coordination sécurisée d'activités, d'un modèle d'évaluation dynamique de ces plans et d'un canevas logiciel qui supporte la spécification, la transformation, l'exécution et la gestion des plansService-based application is built out of activities; each activity corresponds to an invocation (through a communication infrastructure) of an existing service's function. Activities are coordinated by a plan specifying the instructions to be realized. To secure such applications, current works consider the security at the service level and at the service communication level. However, security measures at these levels are mapped inadequately at the coordination level. This thesis focuses on the secure coordination for securing service-based applications. We consider a functional safety level for (i) activities of a coordination plan; (ii) data exchanged between services; and (iii) functions of services to be invoked. Secure coordination is defined through three key concepts: (i) activities to be carried out with certain properties in the scope of coordination plan, (ii) constraints associated with the activities, which control various considered aspects of the plan; and (iii) coordination logs, built from the execution proofs of activities. A secure coordination plan is described as a set of activities, whose constraints to be satisfied are well formed formulas, correctly associated, coherent and evaluable. Execute such a plan corresponds to execute activities by evaluating the constraints. It also consists in evaluating if the services' functions invocations are well done. The plan execution can adapt to the new requirements and changes (of properties, constraints, of constraint solvers, etc. ) interfering at the execution time. This thesis contributes a description model of secure coordination plans; a dynamic evaluation model of these plans and a framework which supports the specification, the transformation, the execution and the management of these plans
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Vu, Thi Huong Giang. "Coordination sécurisée des services." Phd thesis, Grenoble INPG, 2008. http://tel.archives-ouvertes.fr/tel-00342253.
Full textAbstract:
Une application à base de services est construite à partir d'activités ; chaque activité correspond à un appel (par le biais d'une infrastructure de communication) à une fonction exportée par un service existant. Les activités sont coordonnées par un plan précisant les instructions à réaliser. Pour sécuriser de telles applications à base de services, les travaux actuels se focalisent sur la sécurité au niveau des services utilisés et au niveau de la communication entre ces services. Cependant, les mesures de sécurité à ces niveaux se gèrent mal au niveau du plan de coordination. Cette thèse concerne la coordination sécurisée pour la sécurité des applications à base de services. Elle considère un niveau de sûreté de fonctionnement pour (i) les activités d'un plan de coordination ; (ii) les données échangées entre services ; et (iii) les fonctions de services à appeler. La coordination sécurisée est définie à partir de trois concepts clés : (i) les activités à exécuter avec certaines propriétés dans le cadre de la coordination sécurisée, (ii) les contraintes associées aux activités régissant différents aspects considérés de la coordination sécurisée ; et (iii) les journaux de coordination construits à base de preuves d'exécution des activités. Un plan de coordination sécurisée d'activités est donc décrit sous forme d'un ensemble d'activités dont les contraintes devant être satisfaites sont définies par des formules logiques bien formées, correctement associées, cohérentes et évaluables. L'exécution d'un tel plan correspond à exécuter ses activités en évaluant les contraintes. Elle consiste également à évaluer si les appels aux fonctions de différents services se sont bien passés. L'exécution d'un plan peut s'adapter aux nouveaux besoins et aux changements (de propriétés, de contraintes, d'évaluateurs de contraintes, etc.) intervenant lors de l'exécution même du plan. Les contributions majeures de la thèse portent sur la définition d'un modèle pour la description de plan de coordination sécurisée d'activités, d'un modèle d'évaluation dynamique de ces plans et d'un canevas logiciel qui supporte la spécification, la transformation, l'exécution et la gestion des plans.
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Arvidsson, Viktor. "Coordination from an Awareness perspective : Mechanisms and techniques for Awareness based Coordination support." Thesis, Umeå University, Department of Informatics, 2009. http://urn.kb.se/resolve?urn=urn:nbn:se:umu:diva-25364.
Full textAbstract:
When a task becomes shared the need for coordination arises. One fundamental factor for coordination is awareness. This study aimed to answer the question of how awareness-based coordination support systems could increase the efficiency in the processing of tasks generated by the Customer Support Unit in Skellefteå municipality, ultimately creating a better work situation for the officers responsible for the handling of tasks and increasing the service level for the customers of their services. This question was answered by conducting interviews, observing system usage and through analysis of pre-existing interviews from earlier studies of the municipality’s CSU project. This study shows that there are aspects in the task management that are in need of coordination support and presents a task classification system based on the logistic nature of the task. Furthermore this paper identifies the main problems related to the current task management and from an awareness perspective discusses and outlines various mechanisms and techniques to address these problems. Alongside these problems the general lack of coordination support in the current Document and Workflow System (FlexiteBPMS) is approached. Furthermore all outlined proposals share the common aspiration of lessening the burden for the officers without simply shifting the workload onto other units in the workflow chain.
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Astill, Sarah Louise. "Control and coordination of two-handed catching in children with developmental coordination disorder." Thesis, University of Leeds, 2004. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.410710.
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Coey, Charles A. "Complexity and Coordination: Power-Law Scaling in the Temporal Coordination of Complex Systems." University of Cincinnati / OhioLINK, 2015. http://rave.ohiolink.edu/etdc/view?acc_num=ucin1439282201.
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Rooke, Edward. "Perception of partners movements in interpersonal coordination : do human kinematics facilitate rhythmical coordination?" Thesis, University of Bristol, 2016. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.702183.
Full textAbstract:
The synchronisation of interpersonal behaviours in everyday life is essential to achieve joint actions tasks. Even in social interactions where there is no specific coordination goal, particular spatio-temporal relations are maintained between individuals unintentionally and are an important factor in social bonding. Two distinct approaches have been proposed to understand coordination in interpersonal movements during social interactions: the embodied simulation approach links behavioural matching to shared neural resources, which are activated both when an action is observed and when it is performed. Recent studies suggest that only biological stimuli evoke action imitation, as non-biological stimuli are processed elsewhere in the brain. An alternative approach, the coordination dynamics perspective, does not specify any neural substrate but views synchronisation as an emergent phenomenon of an underlying dynamical process, in which the components of a system self-organise toward a stable state. From this standpoint, the dynamic patterns of coordination are affected by attributes of the stimulus kinematics irrespective of whether this stimulus is biological or non-biological in nature. In this thesis, I investigate whether motion kinematics that are perceived as human will facilitate interpersonal coordination more readily than stimuli perceived as artificial. First, in two psychophysical experiments participants were asked to distinguish between real human movements and artificially produced movements. The findings provide insights into the features of one-dimensional cyclic movements that allow them to be identified as human; specifically, observers perceived movements of a particular range of smoothness and frequency as human, whereas both, very fast or very slow movements outside this range were reliably distinguished as artificial. Second, these distinct subsets of human and artificial movement kinematics were applied as stimuli in subsequent intentional and unintentional coordination experiments, and variations in both the strength and pattern of coordination response was observed. In contrast to expectations derived from the embodied simulation literature, experiments did not provide any evidence that the perceptual identification of a stimulus as human matters with regard to improving coordination. Instead, all modulations in coordination behaviour could be explained solely on the basis of direct effects of different stimulus kinematics on an underlying dynamical system. A subsequent modelling study showed that the same patterns of coordination occur with a system of coupled oscillators when the same stimuli are applied. The consistency between the theoretical model and empirical results suggests that the observed coordination behaviour in human subjects can be explained on the basis of an underlying dynamical system, in accordance with the coordination dynamics approach, without the need to incorporate perceptual factors or specialised neural networks. Future studies will have to clarify whether factors relating to the perception of stimuli, predicted by embodied simulation, might become more important in the absence of larger scale effects associated with stimulus kinematics or with a more ecological stimulus.
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Flacher, Fabien. "Génération ascendante de coordination spatiale : vers une conception automatisée du contrôle de coordination spatiale." Paris 6, 2005. http://www.theses.fr/2005PA066591.
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Silva, Ricardo Daniel da Conceição. "The clinical research coordination: the coordination of a clinical trial in a rare disease." Master's thesis, Universidade de Aveiro, 2016. http://hdl.handle.net/10773/18773.
Full textAbstract:
Mestrado em Biomedicina FarmacêuticaThis thesis aims to describe the professional activity of a clinical research coordinator. More specifically, it intends to demonstrate the importance of its role in the context of new drug development through the example of the coordination of a clinical trial in a rare disease in a hospital. For this purpose, the drug development process will be addressed and it will also be discussed the current pharmaceutical research and development paradigm. The Portuguese clinical trial reality and development of new drugs for rare diseases will also be scrutinised. Finally, the implementation of a clinical trial from the perspective of a clinical research coordinator will be described in detail and the importance of the Pharmaceutical Medicine Master in the professional activity of a clinical research coordinator will be highlighted.
A presente tese tem como principal objetivo descrever a atividade profissional de um coordenador de investigação clínica. Mais especificamente, pretende demonstrar a importância deste profissional no contexto do desenvolvimento de novos fármacos através da coordenação de um ensaio clínico numa doença rara em contexto hospitalar. Neste sentido, será abordado o processo de desenvolvimento de novos fármacos e discutido o atual paradigma de investigação e desenvolvimento farmacêutico. Também será analisada a realidade portuguesa dos ensaios clínicos e o desenvolvimento de novos medicamentos em doenças raras. Finalmente, será descrita de forma detalhada a implementação de um ensaio clínico na perspetiva de um coordenador de investigação clínica e realçada a importância do mestrado em Biomedicina Farmacêutica na atividade profissional de um coordenador de investigação clínica.
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Cevik, Deniz. "Synthesis, purification, and characterization of tetraphosphine ligands." Thesis, Université Paris-Saclay (ComUE), 2017. http://www.theses.fr/2017SACLX026/document.
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L'évolution récente de la science écologique et durable nécessite des catalyseurs puissants, sophistiquées et dotés de propriétés spécifiques et accordables.Les catalyseurs bimétalliques qui contiennent deux ou plusieurs sites pour l'activation coopérative de substrats réagissant sur des centres métalliques voisins selon certaines conditions. Un certain nombre de squelettes, spécialement conçus pour générer des complexes exclusivement bimétalliques, ont été développés autour d'échafaudages de méthanodibenzodioxocine et de benzofurobenzofurane, y compris un certain nombre de ligands qui agissent comme donneurs de monophosphine dans deux centres métalliques différents. Ces ligands génèrent des espèces dinucléaires de manière fiable, mais les modes de coordination résultants sont imprévisibles.Ce travail de thèse présente la synthèse de ligands de tétraphosphine, dans lesquels des bras chélatants sont disponibles pour coordonner chacun des deux centres métalliques. La synthèse implique la préparation de 4,8-bis (sec-phosphines) de rac-6,12-méthano-12H-dibenzo [1,3] dioxocines et leur conversion en phosphines doublement chélatantes par l'élaboration de chaque fonctionnalité sec-phosphine en Les dérivés di (R) phosphinopropyle correspondants (R = Ph, Cy). Une étude de chimie de coordination préliminaire indique que l'environnement de coordination est fourni par ces ligands tétraphosphine binucléaires rigides. C’est ainsi que la préparation des complexes bimétalliques de PdII, PtII aurait été réalisé. Chacune des deux molécules de bras chélatants serait coordonnée à un métal. Enfin, des études préliminaires sur l'utilisation des ligands tétraphosphine comme supports pour la chimie de l'hydroformylation ont été réalisées. Les résultats actuels ne permettent pas encore d'établir définitivement un comportement coopératif entre les deux centres métalliques: Recent developments in green and sustainable science require more powerful, sophisticated and tunable catalysts. Bimetallic catalysts contain two or more sites for the activation of substrates and, under optimal circumstances, can allow cooperative activation of reacting substrates on neighboring metal centers. A number of backbones, designed specifically to generate exclusively bimetallic complexes have previously been developed around methanodibenzodioxocin and benzofurobenzofuran scaffolds, including a number of ligands that act as monophosphine donors to two different metal centers. These ligands generate dinuclear species reliably, but the resulting coordination modes are unpredictable. This work presents the synthesis of tetraphosphine ligands, wherein chelating arms are available to coordinate each of the two metal centers. The synthesis involves preparation of 4,8-bis(sec-phosphines) of rac- 6,12-methano-12H-dibenzo[l,3] dioxocins and their conversion into doubly chelating phosphines through the elaboration of each sec- phosphine functionality into the corresponding di(R)phosphinopropyl derivatives (R= Ph, Cy). A preliminary coordination chemistry study indicates that the tightly defined coordination environment provided by these rigid binucleating tetraphosphine ligands under study allowed bimetallic complexes of PdII, PtII to be prepared, in which each of the two chelating arms molecule coordinates to one metal. Finally outline studies on the use of the tetraphosphine ligands as supports for hydroformylation chemistry were performed. The current results do not yet allow cooperative behavior between the two metal centers to be definitively established
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Lay, Andrea N. "Neuromuscular Coordination during Slope Walking." Diss., Georgia Institute of Technology, 2005. http://hdl.handle.net/1853/7507.
Full textAbstract:
The biomechanics and muscle activity of forward and backward slope walking was investigated in humans to gain additional insight into neural control strategies. An adjustable instrumented ramped walkway was constructed and validated. Kinematic, ground reaction force, and muscle activity data were collected from nine subjects walking at three grades (0%, 15%, and 39%) for each of four conditions (forward upslope and downslope and backward upslope and downslope). The changes observed in the data were generally progressive from 0% to 15% to 39% grade. During forward downslope walking the joint moment pattern at the knee changed significantly, power absorption increased, and changes in the muscle activity patterns corresponded directly to changes in joint mechanics. During forward upslope walking, the hip joint moment pattern changed significantly, power generation increased, and changes in the muscle activity pattern were not directly related to changes in the joint moments at all joints. The muscle activity pattern data suggest that modifications to the level walking control strategies were necessary during slope walking. Backward slope walking was used to further explore these findings. Backward upslope and forward downslope kinematics and kinetics were similar, as were those from backward downslope and forward upslope walking. However, power generation increased during upslope walking tasks and power absorption increased during downslope walking tasks, and the changes in muscle firing patterns were more similar for these tasks than for those with similar kinetics. Increased power generation required compensatory muscle activity at adjacent joints that was not directly related to the moments at those joints; increased power absorption did not require such compensatory activity, and muscle activity was directly related to the joint moments. Overall, these data suggest that changes in the control strategy and/or modifications of the level walking control strategy are strongly influenced by the power demands of a task. The characterization of forward and backward slope walking presented here is novel and has important implications for many patient populations; knowledge of the task mechanics may be used to develop or improve physical therapy and rehabilitation exercise programs as well as the design of replacement and/or assistive devices.
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Fatima, Urooj. "Coordination Patterns for Reactive Services." Thesis, Norges teknisk-naturvitenskapelige universitet, Institutt for telematikk, 2010. http://urn.kb.se/resolve?urn=urn:nbn:no:ntnu:diva-11092.
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In our everyday life we come across countless reactive systems. These are the systems that engage in stimulus-response behaviour. The development of distributed reactive systems is quite complex. Being able to rapidly develop and incrementally deploy new services, while avoiding interactions with existing ones, is a challenging task. In this thesis, service examples of a distributed reactive system are modeled using the service engineering approach proposed by Humberto Nicolás Castejón in his PhD thesis; Collaborations in Service Engineering: Modeling, Analysis and Execution. First, services are modeled as collaborations between roles. Thereafter, the behaviour of each system component is designed as a composition of the roles it plays in the different services. In many cases, a component may be requested to participate simultaneously in several occurrences of the same service, or of different services (e.g. a UserAgent representing a user in a telecommunication system may be requested to participate in several phone calls simultaneously). To address such problems, extra coordination functionality is introduced in this thesis to coordinate the roles or role instances that a system component may play at a given point in time. For this, another role is defined, which is external to the service roles and serves to coordinate role binding. This role is named as Controller. The Controller is designed to keep track of the resource status, assign the resource if it is free, and if it is not then respond to the service invitation requests according to the preferences of the actors that receive them. Depending upon how the Controller performs the coordination functionality, some coordination patterns have been investigated. Apart from modeling the service from scratch and investigating the coordination patterns for it, it has been explored in this thesis how this coordination functionality can be added into an existing service model in a modular way. Some solutions are discussed but these are the initial thoughts which can be further explored in depth. The general structure of the coordination patterns has also been identified, which further strengthened the generality of the coordination patterns.