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Dissertations / Theses on the topic 'Unstable'

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1

Harvey, Mikko. "Unstable Neighborhood Rabbit." The Ohio State University, 2016. http://rave.ohiolink.edu/etdc/view?acc_num=osu1461176226.

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2

Wijeyaratne, Serosha Mandika. "The unstable carotid plaque." Thesis, University of Leeds, 2004. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.416839.

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3

Ghan, S. J. (Steven John). "Unstable radiative-dynamical interactions." Thesis, Massachusetts Institute of Technology, 1988. http://hdl.handle.net/1721.1/52897.

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4

Wang, Guozhen Ph D. Massachusetts Institute of Technology. "Unstable chromatic homotopy theory." Thesis, Massachusetts Institute of Technology, 2015. http://hdl.handle.net/1721.1/99321.

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Thesis: Ph. D., Massachusetts Institute of Technology, Department of Mathematics, 2015.<br>Cataloged from PDF version of thesis.<br>Includes bibliographical references (pages 57-58).<br>In this thesis, I study unstable homotopy theory with chromatic methods. Using the v, self maps provided by the Hopkins-Smith periodicity theorem, we can decompose the unstable homotopy groups of a space into its periodic parts, except some lower stems. For fixed n, using the Bousfield-Kuhn functor [Phi]n, we can associate to any space a spectrum, which captures the vo-periodic part of its homotopy groups. I st
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5

Zhang, Liyan. "Lipoprotein lipase - unstable on purpose? /." Doctoral thesis, Umeå : Department of Medical Biosciences, Physiological Chemistry, University of Umeå, 2007. http://urn.kb.se/resolve?urn=urn:nbn:se:umu:diva-1058.

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6

Rahman, Md Ahsanur. "Unstable Communities in Network Ensembles." Diss., Virginia Tech, 2016. http://hdl.handle.net/10919/78290.

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Ensembles of graphs arise naturally in many applications, for example, the temporal evolution of social contacts or computer communications, tissue-specific protein interaction networks, annual citation or co-authorship networks in a field, or a family of high-likelihood Bayesian networks inferred from systems biology data. Several techniques have been developed to analyze such ensembles. A canonical problem is that of computing communities that are persistent across the ensemble. This problem is usually formulated as one of computing dense subgraphs (communities) that are frequent, i.e., appe
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7

Scott-Kemball, Simon. "Henry Green : the unstable vision." Thesis, University of Edinburgh, 1999. http://hdl.handle.net/1842/22622.

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The first chapter looks at how Green's autobiography tests the concept of a stable self and influences his subsequent representation of character in his novels, where the human subject is increasingly exposed as a construct of words, dissolved in the structures of language and society. In the second chapter I examine the idea of instability as stimulus, looking at how the unstable vision was nurtured during a wartime London under bombardment and blackout, a state of flux which Green would reinterpret as an 'absolute gift'. The third chapter is divided into two parts of which the first half ass
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8

Timm, Brandon. "Graceful Displays of Unstable Affection." OpenSIUC, 2016. https://opensiuc.lib.siu.edu/theses/1886.

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This collection attempts to answer the question “What is a story?” by presenting ten stories of characters who, in their attempts to do the right thing, either make things worse or create larger problems for themselves and their objects of affection. Inside, one will find the use of embedded storytelling, the implication of place and bystander, the exploration of violence as the last tool of the frustrated, failed attempts at redemption, and not too few dogs, some of which don’t even die.
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9

Uribe, Buitrago Manuela. "Architecture in an unstable territory." Thesis, Massachusetts Institute of Technology, 2018. http://hdl.handle.net/1721.1/118569.

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This electronic version was submitted by the student author. The certified thesis is available in the Institute Archives and Special Collections.<br>Thesis: S.M., Massachusetts Institute of Technology, Department of Architecture, 2018<br>Cataloged from PDF version of thesis.<br>Includes bibliographical references (pages [66]-[67]).<br>This thesis argues that traditional architectural practice is insufficient to respond to the instabilities of rapid informal urbanization in Latin America. Traditional practice has mostly focused on designing objects, but informal territories instead need archite
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10

Turcotte, Richard. "Decay properties of unstable Gd nuclides." Thesis, McGill University, 1988. http://digitool.Library.McGill.CA:80/R/?func=dbin-jump-full&object_id=75672.

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The decay properties of the neutron deficient nuclei $ sp{144}$Gd, $ sp{142}$Gd, $ sp{ rm 141g}$Gd, $ sp{ rm 141m}$Gd and $ sp{140}$Gd are investigated in detail for the first time and the new beta decaying isomers $ sp{ rm 141g,m}$Gd, $ sp{141}$Tb(A) and $ sp{140}$Gd are discovered. A gas-jet recoil-transport system and a conversion electron spectrometer are designed and constructed in order to measure the electromagnetic transitions emitted following their decay. Levels schemes are deduced for the daughter nuclei $ sp{144}$Eu, $ sp{142}$Eu, $ sp{141}$Eu, $ sp{140}$Eu, and $ sp{141}$Gd and sp
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11

Nukala, Ramesh Babu. "Neuro-fuzzy controllers for unstable systems." Thesis, Lancaster University, 1997. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.364362.

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12

Huntingford, C. "Unstable Hele-Shaw and Stefan problems." Thesis, University of Oxford, 1992. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.305462.

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13

Alsaeed, Abraheem. "E-Service adoption in unstable societies." Thesis, University of Portsmouth, 2017. https://researchportal.port.ac.uk/portal/en/theses/eservice-adoption-in-unstable-societies(ef861439-93a1-4cf9-9238-af225e08e348).html.

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Refugees and displaced people who have been affected by political instability face complex challenges to access government services. Digital (eGovernment) services perhaps have the greatest potential for overcoming these challenges, particularly in societies and developing countries with limited access to traditional infrastructure and resources. There are limited academic works covering the provision and efficacy of eServices for this need. This work addresses this gap by examining eService provision for three levels of instability (High, Medium and Low, derived from UN data), and focuses par
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14

Fazendeiro, L. A. M. "Unstable periodic orbits in turbulent hydrodynamics." Thesis, University College London (University of London), 2011. http://discovery.ucl.ac.uk/1306183/.

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In this work we describe a novel parallel space-time algorithm for the computation of periodic solutions of the driven, incompressible Navier-Stokes equations in the turbulent regime. Efforts to apply the machinery of dynamical systems theory to fluid turbulence depend on the ability to accurately and reliably compute such unstable periodic orbits (UPOs). These UPOs can be used to construct the dynamical zeta function of the system, from which very accurate turbulent averages of observables can be extracted from first principles, thus circumventing the inherently statistical description of flu
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15

Bedford, Robert George. "Finite-aperture tapered unstable resonator lasers." Diss., The University of Arizona, 2003. http://hdl.handle.net/10150/289968.

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The development of high power, high brightness semiconductor lasers is important for applications such as efficient pumping of fiber amplifiers and free space communication. The ability to couple directly into the core of a single-mode fiber can vastly increase the absorption of pump light. Further, the high mode-selectivity provided by unstable resonators accommodates single-mode operation to many times the threshold current level. The objective of this dissertation is to investigate a more efficient semiconductor-based unstable resonator design. The tapered unstable resonator laser consists
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16

Clayton, Matthew. "Dynamical mass loss from unstable giants." Thesis, University of Oxford, 2018. http://ora.ox.ac.uk/objects/uuid:3aa54f27-e13e-4b16-bafd-28b3e7059e8d.

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Giant stars are believed to lose significant fractions of their total mass over their lifetimes, but the mechanisms responsible for this are ill-understood. One possible mechanism is dynamical mass loss - a hydrodynamical process in which matter is ejected from the stellar surface in ballistic outflows. In this thesis, dynamical mass loss is studied in three stellar regimes: common-envelope objects, asymptotic giant branch stars, and red supergiants. Using hydrodynamical simulations performed with the stellar evolution code MESA, we examine the dynamical behaviour and stability of stars in eac
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17

Giusti, Chad David 1978. "Plumbers' knots and unstable Vassiliev theory." Thesis, University of Oregon, 2010. http://hdl.handle.net/1794/10869.

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viii, 57 p. : ill. A print copy of this thesis is available through the UO Libraries. Search the library catalog for the location and call number.<br>We introduce a new finite-complexity knot theory, the theory of plumbers' knots, as a model for classical knot theory. The spaces of plumbers' curves admit a combinatorial cell structure, which we exploit to algorithmically solve the classification problem for plumbers' knots of a fixed complexity. We describe cellular subdivision maps on the spaces of plumbers' curves which consistently make the spaces of plumbers' knots and their discriminants
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18

Billingsley, Amy. "Humorwork, Feminist Philosophy, and Unstable Politics." Thesis, University of Oregon, 2019. http://hdl.handle.net/1794/24550.

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This dissertation examines humor as a situated practice of reappropriation and transformation undertaken by a subject within a social world. I bring together insights from humor studies, philosophy of humor, and feminist philosophy (especially feminist continental philosophy) to introduce the concept of humorwork as an unstable political practice of reappropriating and transforming existing images, speech, and situations. I argue that humorwork is an unstable politics because the practice of reappropriation and transformation often exceeds the intentions of the subject practicing humor, taking
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19

Nielsen, Nils Erik. "Clinical and laboratory investigations in postmenopausal women with unstable coronary artery disease /." Linköping : Univ, 2000. http://www.bibl.liu.se/liupubl/disp/disp2000/Med615s.htm.

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20

Li, Larry. "Forcing of globally unstable jets and flames." Thesis, University of Cambridge, 2012. https://www.repository.cam.ac.uk/handle/1810/242373.

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In the analysis of thermoacoustic systems, a flame is usually characterised by the way its heat release responds to acoustic forcing. This response depends on the hydrodynamic stability of the flame. Some flames, such as a premixed bunsen flame, are hydrodynamically globally stable. They respond only at the forcing frequency. Other flames, such as a jet diffusion flame, are hydrodynamically globally unstable. They oscillate at their own natural frequencies and are often assumed to be insensitive to low-amplitude forcing at other frequencies. If a hydrodynamically globally unstable flame really
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Gratrix, Sam. "Spatiotemporal chaos analysed through unstable periodic states." Thesis, Imperial College London, 2006. http://hdl.handle.net/10044/1/1266.

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Multifractal properties of a chaotic attractor are usefully quantified by its spectrum of singularities, f(α). Here, α is the pointwise dimension of the natural measure at a point on the attractor, and f(α) is the Hausdorff dimension of all points with pointwise dimension α. Within a more general thermodynamic formalism, the singularity spectrum is one of several ways in which the properties of an attractor can be quantified. The technique used to realize the singularity spectrum is orbit theory. This theory tells one how to take properties of finite time solutions and combine them to approxim
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Braithwaite, Jonathan. "Stable and unstable magnetic fields in stars." [S.l. : Amsterdam : s.n.] ; Universiteit van Amsterdam [Host], 2004. http://dare.uva.nl/document/92648.

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23

Carpenter, Jeffrey Richard. "Unstable waves on a sheared density interface." Thesis, University of British Columbia, 2009. http://hdl.handle.net/2429/12259.

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The Holmboe instability is known to occur in stratified shear layers that exhibit a relatively thin density interface compared to the shear layer thickness. At finite amplitude the instability appears as cusp-like propagating internal waves. The evolution and identification of these unstable waves is the subject of this thesis. The results are presented in four parts. First, the basic wave field resulting from Holmboe's instability is studied both numerically and experimentally. In comparing basic descriptors of the wave fields, a number of processes are identified that are responsible fo
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Banerjea, Ayan. "The immunogenicity of microsatellite unstable colorectal cancers." Thesis, Queen Mary, University of London, 2006. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.429044.

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25

Semba, Hiroyuki. "Creep modelling of microstructurally unstable martensitic steels." Thesis, Imperial College London, 2004. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.407407.

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26

James, Helen. "Cis-acting modifiers of unstable DNA dynamics." Thesis, University of Glasgow, 2006. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.438051.

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27

Bush, Andrew Marcus. "Experimental and theoretical studies of unstable species." Thesis, University of Southampton, 1997. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.242252.

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28

Mycroft, William. "Unstable cohomology operations : computational aspects of plethories." Thesis, University of Sheffield, 2017. http://etheses.whiterose.ac.uk/20524/.

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Generalised cohomology theories are a broad class of powerful invariants in algebraic topology. Unstable cohomology operations are a useful piece of structure associated to a such a theory and as a result the collection of these operations is of interest. Traditionally, these operations have been studied through the medium of Hopf rings. However, a Hopf ring does not readily admit algebraic structure corresponding to composition of operations. Stacey and Whitehouse showed that the unstable cohomology operations naturally admit the structure of an esoteric algebraic gadget termed a plethory. Th
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29

Jones, Sarah A. "Understanding change within emotionally unstable personality disorder." Thesis, Canterbury Christ Church University, 2017. http://create.canterbury.ac.uk/16351/.

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Qualitative research has begun focussing on the experience of change within psychological therapy for individuals with a diagnosis of Emotionally Unstable Personality Disorder (EUPD). However, many individuals do not access therapy but instead utilise other forms of support. This study aimed to develop a holistic theory of change, applicable to but extendable beyond the remit of psychological therapy. Twelve individuals were interviewed using semi-structured format about their experience of change. Five individuals with a diagnosis of EUPD were interviewed alongside seven staff members. A Grou
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López, de Haro Santiago. "Level schedule implementation in unstable manufacturing environments." Thesis, Massachusetts Institute of Technology, 2008. http://hdl.handle.net/1721.1/44453.

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Thesis (S.M.)--Massachusetts Institute of Technology, Dept. of Electrical Engineering and Computer Science; and, (M.B.A.)--Massachusetts Institute of Technology, Sloan School of Management; in conjunction with the Leaders for Manufacturing Program at MIT, 2008.<br>Includes bibliographical references (p. 63-64).<br>American Axle & Manufacturing Inc. (AAM), headquartered in Detroit (MI) is one of the major Tier 1 suppliers in the automotive industry. The main challenge in AAM plant 2 is production rate unstability due to downtime, quality, changeover and absenteeism issues. The company is curren
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Mohamad, Mustafa A. "Probabalistic quantification of intermittently unstable dynamical systems." Thesis, Massachusetts Institute of Technology, 2015. http://hdl.handle.net/1721.1/101481.

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Thesis: S.M., Massachusetts Institute of Technology, Department of Mechanical Engineering, 2015.<br>Cataloged from PDF version of thesis.<br>Includes bibliographical references (pages 65-69).<br>In this work we consider dynamical systems that are subjected to intermittent instabilities. The presence of intermittent instabilities can be identified by large amplitude spikes in the time series of the system or heavy-tails in the probability density function (pdf) of the response. We formulate a method that can analytically approximate the response pdf (both the main probability mass and heavy-tai
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Bhatia, Abhishek. "Multivariable Feedback Control of Unstable Aircraft Dynamics." University of Cincinnati / OhioLINK, 2016. http://rave.ohiolink.edu/etdc/view?acc_num=ucin1479809412341377.

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33

Swisher, Nora. "Data Analysis of Rayleigh-Taylor Unstable Flows." Research Showcase @ CMU, 2016. http://repository.cmu.edu/dissertations/988.

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Rayleigh-Taylor and Richtmyer-Meshkov instabilities (RTI and RMI) occur when afluid interface between fluids of different densities is accelerated against the density gradient. RTI/RMI plays an important role in the dynamics of fluids and plasmas on microscopic scales, such as inertial confinement fusion, through astronomical scales, such as supernova explosions. These problems have been studied for decades, yet it remains a challenge to observe, model, and describe RTI/RMI mathematically. Without the tools used to analyze stable equilibrium, we must find more robust analyses. This work uses r
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Zhang, Xi. "Steel Portal Frames with Locally Unstable Members." Thesis, The University of Sydney, 2013. http://hdl.handle.net/2123/10452.

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The advanced analysis based design has an advantage over conventional member based design methods because it is most capable of capturing the limit state strength and stability of a real structure, taking into account system effects explicitly such as the load redistribution subsequent to first yielding. While being considered as the next generation's design method, the advanced analysis based design is still restricted to steel frames comprising only members with compact cross-sections in AS4100, partly because modelling local instability requires discretisation of the cross-section which mak
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Wilcox, Ian. "Predictors of adverse prognosis in unstable angina." Thesis, The University of Sydney, 1991. https://hdl.handle.net/2123/26398.

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The prognostic significance of a clinical diagnosis of unstable angina was examined in a prospective study of 530 consecutive patients admitted with suspected unstable coronary disease. The 296 patients with a clinical diagnosis of unstable angina were shown to be at high risk of cardiac death, myocardial infarction or recurrent unstable angina in the year after presentation. This adverse outcome was no different to that of 64 patients with the diagnosis of a small myocardial infarction based on serial cardiac enzymes. In contrast, the outcome of 170 patients who presented with suspected unsta
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36

Trouncer, Adam Nevil. "Steel storage racks with locally unstable members." Thesis, The University of Sydney, 2014. http://hdl.handle.net/2123/11814.

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This thesis presents comprehensive studies into locally unstable light-gauge steel structures. The aim of this project was to create guidelines for the design of thin-walled steel structures by analyses which consider the effect of cross-sectional instability. Research was conducted to address the knowledge gap associated with the amplification of second-order effects due to local instabilities, the treatment of imperfections in advanced analysis and the effect of interactive buckling on light gauge steel members. The objectives of this research were achieved through a combination of numerical
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Rajagopalan, Vinayaka Narayanan. "Diagnosing subsynchronous vibrations in turbomachinery - stable or unstable." Thesis, [College Station, Tex. : Texas A&M University, 2007. http://hdl.handle.net/1969.1/ETD-TAMU-1572.

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38

Borzou, Bijan. "The Influence of Cellular Structure on the Dynamics of Detonations with Constant Mass Divergence." Thesis, Université d'Ottawa / University of Ottawa, 2016. http://hdl.handle.net/10393/34841.

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Detonation waves are supersonic combustion waves that have a complex three-dimensional cellular structure. There is growing experimental evidence that the cellular structure of detonations promotes their propagation in the presence of losses. In spite of that, the conventional model for the detonation structure, known as the Zeldovich - Von Neumann - Doring (ZND) model, neglects the existence of cellular structure for detonations and assumes the wave to consist of a strong leading planar shock coupled with trailing chemical reactions. Therefore, the influence of cellular structure on the dynam
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Isler, Jonathan Michael. "The normalization of unstable, insecure Web design employment /." For electronic version search Digital dissertations database. Restricted to UC campuses. Access is free to UC campus dissertations, 2005. http://uclibs.org/PID/11984.

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Loftesnes, Kristian. "Svaddenipun, Rjukan : Stability analysis of potentially unstable mountainside." Thesis, Norges teknisk-naturvitenskapelige universitet, Institutt for geologi og bergteknikk, 2010. http://urn.kb.se/resolve?urn=urn:nbn:no:ntnu:diva-11956.

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The steep topography of Norway has caused numerous of large-scale rock slope failures with fatal consequences and the Norwegian Geological Survey landslide database covers over 3000 landslide events. Large-scale slope failures, such as the devastating tsunami triggering events in Loen (1905, 1936) and Tafjord (1934) highlight the importance in detecting instabilities in order to protect human lives and property (Kveldsvik and Einstein et al 2008). A potential slope instability has been detected at Svaddenipun, Rjukan (Dahlgren and Sletten et al 2004, NGI 2009). The municipality of Tinn have as
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Barry, Judith Anne. "Optical and infrared spectra of some unstable molecules." Thesis, University of British Columbia, 1987. http://hdl.handle.net/2429/28619.

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Some unstable gaseous molecules, cobalt oxide (CoO), niobium nitride (NbN) and aminoborane (NH₂BH₂), were studied by high resolution optical spectroscopy. A portion of the "red" system of CoO, from 7000 Å to 5800 Å, was measured using laser induced fluorescence techniques. Three bands of the system, with origins at 6338 Å, 6411 Å and 6436 Å, were rotationally analyzed. The lower levels of these parallel bands are the Ω = 7/2 and 5/2 spin-orbit components of a ⁴∆i electronic state. Available evidence indicates that this is the ground state of the molecule; its bond length is 1.631 Å. This work
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42

Gowans, Caitlin. "Unstable Identity in Caryl Churchill's Love and Information." Thesis, Université d'Ottawa / University of Ottawa, 2014. http://hdl.handle.net/10393/31555.

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Caryl Churchill’s play, Love and Information, presents a shift in focus from unstable personal and political identity towards unstable logical identity, a philosophical concept that takes identity out of the realm of identity politics.. As a new play Love and Information has understandably been subject to very little scholarly analysis. This thesis situates the play within Churchill’s corpus in order to consider how the depersonalized identities of this play fit within the broader scope of Churchill’s work. Anchored in Elin Diamond’s study of gender identity in Churchill’s corpus, this thesi
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Noble-Eddy, Robert. "Gas-phase electron diffraction studies of unstable molecules." Thesis, University of Edinburgh, 2009. http://hdl.handle.net/1842/4101.

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Gas-phase electron diffraction (GED) is the only viable technique for the accurate structural study of gas-phase molecules that contain more than ~10 atoms. Recent advances in Edinburgh have made it possible to study larger, more complex, stable molecules using the SARACEN method. This thesis is concerned with obtaining the structures of unstable species, using both standard GED techniques and by developing a new method in which ash vacuum pyrolysis is used to generate short-lived species in situ. In the first part of this thesis nine primary phosphines (R-PH2) with different substituents (R =
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Junod, Fabien. "Unstable Adams operations on ρ-local compact groups". Thesis, University of Aberdeen, 2008. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.531931.

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Let <i>G</i> be any compact connected Lie group and let <i>T</i> ≤ <i>G</i> be a maximal torus.  Then for any unstable Adams operation <i>f</i> of degree <i>k</i>, the following diagram commutes up to homotopy «!» And conversely, any map <i>f</i> that makes the above diagram commute must be an unstable Adams operation. Using this characterization, we will construct a self-map of a <i>p</i>-local compact group (<i>S,F,L</i>) in order to define unstable Adams operations on a more general setting. THEOREM.  For any <i>p</i>-local compact group (<i>S,F,L</i>) there is a self-equivalence such that
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Osman, O. I. "Microwave, infrared and photoelectron studies of unstable molecules." Thesis, University of Sussex, 1986. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.374482.

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Dixon, Nicholas Simon. "Neutral and unstable turbulent flow over low hills." Thesis, University of Leeds, 2002. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.415000.

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47

Moshaweh, Abdulaziz. "Unstable passivity and activation of supermartensitic stainless steel." Thesis, University of Cambridge, 2015. https://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.708524.

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Liski, Lilia, Antonina Verhun, and Julia Bondarchuk. "Managing the economic security system in unstable environment." Thesis, European Scientific Platform, 2020. https://er.knutd.edu.ua/handle/123456789/16693.

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Wyatt, Andrew L. Wyatt. "Interfacing with Reality: Zeno and the Unstable Narrative." Kent State University Honors College / OhioLINK, 2016. http://rave.ohiolink.edu/etdc/view?acc_num=ksuhonors1463138182.

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Yen, Wei-Ting Yen. "Unstable Income and the Welfare State in Asia." The Ohio State University, 2018. http://rave.ohiolink.edu/etdc/view?acc_num=osu1533388469470047.

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