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Dissertations / Theses on the topic 'Differential function'

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1

Galstian, Anahit, and Karen Yagdjian. "Exponential function of pseudo-differential operators." Universität Potsdam, 1997. http://opus.kobv.de/ubp/volltexte/2008/2498/.

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The paper is devoted to the construction of the exponential function of a matrix pseudo-differential operator which do not satisfy any of the known theorems (see, Sec.8 Ch.VIII and Sec.2 Ch.XI of [17]). The applications to the construction of the fundamental solution for the Cauchy problem for the hyperbolic operators with the characteristics of variable multiplicity are given, too.
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2

Chen, Cangxiong, and 陈仓雄. "Height functions on elliptic curves over function fields: a differential-geometric approach." Thesis, The University of Hong Kong (Pokfulam, Hong Kong), 2011. http://hub.hku.hk/bib/B47048414.

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3

Trotti, Manuela. "Applications of elliptic functions to solve differential equations." Master's thesis, Alma Mater Studiorum - Università di Bologna, 2016. http://amslaurea.unibo.it/10135/.

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In questa tesi si mostrano alcune applicazioni degli integrali ellittici nella meccanica Hamiltoniana, allo scopo di risolvere i sistemi integrabili. Vengono descritte le funzioni ellittiche, in particolare la funzione ellittica di Weierstrass, ed elenchiamo i tipi di integrali ellittici costruendoli dalle funzioni di Weierstrass. Dopo aver considerato le basi della meccanica Hamiltoniana ed il teorema di Arnold Liouville, studiamo un esempio preso dal libro di Moser-Integrable Hamiltonian Systems and Spectral Theory, dove si prendono in considerazione i sistemi integrabili lungo la geodetica
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4

Moita, Santos Rita. "Differential drug response as a function of age." Thesis, University of Cambridge, 2015. https://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.708745.

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5

Shcherbakov, Victor. "Localised Radial Basis Function Methods for Partial Differential Equations." Doctoral thesis, Uppsala universitet, Avdelningen för beräkningsvetenskap, 2018. http://urn.kb.se/resolve?urn=urn:nbn:se:uu:diva-332715.

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Radial basis function methods exhibit several very attractive properties such as a high order convergence of the approximated solution and flexibility to the domain geometry. However the method in its classical formulation becomes impractical for problems with relatively large numbers of degrees of freedom due to the ill-conditioning and dense structure of coefficient matrix. To overcome the latter issue we employ a localisation technique, namely a partition of unity method, while the former issue was previously addressed by several authors and was of less concern in this thesis. In this thesi
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6

Chapman, Tajekesa Kudzaishe Pamacheche. "Regulation of PABP1 function by differential post-translational modification." Thesis, University of Edinburgh, 2016. http://hdl.handle.net/1842/25875.

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Post-transcriptional control of gene expression is critical for normal cellular function and viability. Poly(A)-binding protein (PABP) 1 is the prototypical member of a family of RNA-binding proteins which are key post-transcriptional regulators. PABP1 is multifunctional, acting as a primary determinant of translation efficiency and mRNA stability, regulating the fate of specific mRNAs, and participating in microRNAmediated regulation and nonsense-mediated mRNA decay. As well as binding various mRNAs, PABP1 achieves its multifunctionality through protein-protein interactions with numerous PABP
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7

Gallego, Bartolomé Javier. "Della protein function during differential growth processes in arabidopsis." Doctoral thesis, Universitat Politècnica de València, 2011. http://hdl.handle.net/10251/11403.

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The plant hormones gibberellins (GAs) regulate multiple processes of plant development. Most of this regulation occurs at the transcriptional level, through the activity of the DELLAs, which are nuclear-localized proteins subjected to GA-mediated proteolitic degradation. DELLAs are encoded by five genes, and genetic studies show that each DELLA displays specific, but also partially overlapping roles with respect to their paralogs. In this Thesis, we have addressed two issues: (1) the contribution of DELLA multiplication to the diversification of functions controlled by GAs; and (2) the identif
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8

Williams, Georges Stuart. "Differential regulation and function of mhc class ii molecules." Université Louis Pasteur (Strasbourg) (1971-2008), 1998. http://www.theses.fr/1998STR13091.

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Ce travail de these avait pour but de determiner le role de l'expression des molecules de classe ii du complexe majeur d'histocompatibilite (cmh) a la surface de differents types cellulaires lors de la reponse immunitaire. Parallelement, le controle de l'expression des molecules de classe ii du cmh par le transactivateur ciita a ete etudie. Afin d'obtenir des souris deficientes pour l'expression des molecules de classe ii du cmh specifiquement dans certaines populations cellulaires du systeme immunitaire, nous avons decide d'utiliser le systeme cre/lox pour inactiver le gene ciita par recombin
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9

Hsieh, Yi-Wen. "Differential pax6 expression and function in chicken retinal neurogenesis." Diss., Restricted to subscribing institutions, 2007. http://proquest.umi.com/pqdweb?did=1495958871&sid=1&Fmt=2&clientId=1564&RQT=309&VName=PQD.

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10

Gehrig, Jochen. "Function of core promoters in differential gene regulation during embryogenesis." Thesis, University of Birmingham, 2010. http://etheses.bham.ac.uk//id/eprint/971/.

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The core promoter is the ultimate target of all transcriptional regulatory processes. The recently discovered diversity of core promoters and basal transcription factors suggests a regulatory role in differential gene expression. However, the direct contribution of the core promoter remains poorly understood. I investigated core promoters and their putative role in differential gene regulation using the zebrafish embryo as an in vivo model system. To analyse the functional requirement for the general transcription factor TATA-box binding protein (TBP), a diverse set of promoters was tested for
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11

Mdekazi, Mvuyisi. "Generalized implicit function theorems and applications to ordinary differential equations." Master's thesis, University of Cape Town, 1993. http://hdl.handle.net/11427/14297.

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12

Olin, Kevin Scott. "Perceived caregiver burden as a function of differential coping strategies." CSUSB ScholarWorks, 1994. https://scholarworks.lib.csusb.edu/etd-project/954.

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13

Johansson, Anders. "Shape functions in calculations of differential scattering cross-sections." Thesis, Uppsala University, Department of Physics and Astronomy, 2010. http://urn.kb.se/resolve?urn=urn:nbn:se:uu:diva-126674.

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<p>Two new methods for calculating the double differential scattering cross-section (DDSCS) in electron energy loss spectroscopy (EELS) have been developed, allowing for simulations of sample geometries which have been unavailable to earlier methods of calculation. The new methods concerns the calculations of the <em>thickness function</em> of the DDSCS. Earlier programs have used an analytic approximation of a sum over the lattice vectors of the sample that is valid for samples with parallel entrance and exit surfaces.The first of the new methods carries out the sum explicitly, first identify
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14

Wu, Dongsheng. "Eigenvalues of Differential Operators and Nontrivial Zeros of L-functions." BYU ScholarsArchive, 2020. https://scholarsarchive.byu.edu/etd/8729.

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The Hilbert-P\'olya conjecture asserts that the non-trivial zeros of the Riemann zeta function $\zeta(s)$ correspond (in a certain canonical way) to the eigenvalues of some positive operator. R. Meyer constructed a differential operator $D_-$ acting on a function space $\H$ and showed that the eigenvalues of the adjoint of $D_-$ are exactly the nontrivial zeros of $\zeta(s)$ with multiplicity correspondence. We follow Meyer's construction with a slight modification. Specifically, we define two function spaces $\H_\cap$ and $\H_-$ on $(0,\infty)$ and characterize them via the Mellin transform.
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15

Roulhac, Sydney. "Impact of Function-Based Self-Monitoring with Functional Communication Training and Differential Reinforcement on Student Behavior." Scholar Commons, 2019. https://scholarcommons.usf.edu/etd/7913.

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The current literature on self-monitoring provides limited information on increasing functional communication skills in students with disabilities by incorporating function-based intervention. The purpose of this study was to extend self-monitoring literature by incorporating functional communication training (FCT) into self-monitoring intervention and targeting students who engage in problem behavior due to communication difficulties. Three students with disabilities served in kindergarten through 3rd grade and their corresponding teachers participated in this study. A multiple baseline acros
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16

Zhang, Wei. "Differential Impact of Age and Stress on Amygdala Physiology and Function." Thesis, Rosalind Franklin University of Medicine and Science, 2013. http://pqdtopen.proquest.com/#viewpdf?dispub=3566591.

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<p> Occasional stress is a normal aspect of mammalian life. However repeated or prolonged stress exposure dysregulates stress responses and contributes to the onset or exacerbation of affective disorders such as anxiety, depression and post-traumatic stress disorder (PTSD). Understanding the underlying mechanism of the effect of stress on affective behaviors is essential for effective prevention and treatment of these disorders. </p><p> All affective disorders share a deficit in the regulation of emotion. The amygdala plays crucial role in this regulation and is adversely affected by stress
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17

Easton, Paul A. "Differential function of costal and crural diaphragm in the awake canine." Thesis, McGill University, 1992. http://digitool.Library.McGill.CA:80/R/?func=dbin-jump-full&object_id=41004.

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These investigations examined the relative function of costal and crural diaphragm segments. This work produced the first direct measurements of length and electromyogram (EMG) of the diaphragm in an awake, intact animal.<br>Examination of diaphragm function following laparotomy revealed a consistent pattern of postoperative segmental recovery, and showed the inadequacy of EMG alone as an indicator of diaphragm activity. Segmental contraction during airway occlusion was confirmed to be non-isometric and different per segment. The basic relation between segmental velocity of shortening and mean
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18

Naqvi, Syeda Laila. "Adaptive radial basis function interpolation for time-dependent partial differential equations." Thesis, University of Leicester, 2013. http://hdl.handle.net/2381/28184.

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In this thesis we have proposed the meshless adaptive method by radial basis functions (RBFs) for the solution of the time-dependent partial differential equations (PDEs) where the approximate solution is obtained by the multiquadrics (MQ) and the local scattered data reconstruction has been done by polyharmonic splines. We choose MQ because of its exponential convergence for sufficiently smooth functions. The solution of partial differential equations arising in science and engineering, frequently have large variations occurring over small portion of the physical domain, the challenge then is
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19

Brink, Anita. "Renogram Image Characteristics and the Reproducibility of Differential Renal Function Measurement." Doctoral thesis, Faculty of Health Sciences, 2019. https://hdl.handle.net/11427/31657.

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Aim The reproducibility of differential renal function (DRF) estimates on 99mTc-mercaptoacetyltriglycine (99m Tc-MAG3) is good in the majority of children. There is however a small but important group with poor reproducibility which, if not recognized, could affect clinical decision making. Some factors, such as age and glomerular filtration rate (GFR), have been implicated as causes for poor reproducibility. The aim of this study is to formally investigate image characteristics associated with the reproducibility of DRF measurements. Patients and methods The image characteristics
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20

Wyszynski, Rafal Wlodzimierz. "Differential control of immune cell function by HIF-1 signalling pathway." Thesis, University of Kent, 2014. https://kar.kent.ac.uk/47691/.

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Human inflammatory/innate immune responses lie at the core of resistance to infectious disease and determine the nature of pathophysiological reactions of hematopoietic cells like leukaemia and allergy. The crucial step in these events is the ability of immune cells to function properly, which depends on their adaptation to stress caused by pro-inflammatory stimulation. The mechanisms underlying this crucial biochemical dogma, and its role in normal and pathological cross-links between immune cells, are not well understood. This PhD programme was devoted to investigation of these important pro
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21

Ugail, Hassan, and A. Sourin. "Partial differential equations for function based geometry modelling within visual cyberworlds." IEEE Computer Society, 2008. http://hdl.handle.net/10454/2612.

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We propose the use of Partial Differential Equations (PDEs) for shape modelling within visual cyberworlds. PDEs, especially those that are elliptic in nature, enable surface modelling to be defined as boundary-value problems. Here we show how the PDE based on the Biharmonic equation subject to suitable boundary conditions can be used for shape modelling within visual cyberworlds. We discuss an analytic solution formulation for the Biharmonic equation which allows us to define a function based geometry whereby the resulting geometry can be visualised efficiently at arbitrary levels of sha
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22

Renkema, Kristin. "Differential Maintenance, Function, and Transcriptional Profile of CD8⁺ T cells with Age." Diss., The University of Arizona, 2013. http://hdl.handle.net/10150/293484.

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Infectious diseases remain amongst leading causes of death in people aged 65 years and older; therefore, much research is focused on determining the immune components that contribute to age-dependent increased susceptibility to, and increased mortality from, infections. CD8⁺ T cells are critical for clearing intracellular pathogens through production of cytokines and direct killing of infected cells. Age-dependent CD8⁺ T cell alterations have been described, including decreased numbers of naïve CD8⁺ T cell precursors and decreased numbers and function during infection. This dissertation explor
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23

Семенова, Л. С., та В. Т. Белов. "Некоторые методические аспекты понятия дифференциальной функции плотности вероятностей". Thesis, Изд-во СумГУ, 2009. http://essuir.sumdu.edu.ua/handle/123456789/18020.

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24

Graff, Nathaniel. "Differential Power Analysis In-Practice for Hardware Implementations of the Keccak Sponge Function." DigitalCommons@CalPoly, 2018. https://digitalcommons.calpoly.edu/theses/1838.

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The Keccak Sponge Function is the winner of the National Institute of Standards and Technology (NIST) competition to develop the Secure Hash Algorithm-3 Standard (SHA-3). Prior work has developed reference implementations of the algorithm and described the structures necessary to harden the algorithm against power analysis attacks which can weaken the cryptographic properties of the hash algorithm. This work demonstrates the architectural changes to the reference implementation necessary to achieve the theoretical side channel-resistant structures, compare their efficiency and performance char
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25

Larkin, Wallace M. "Using Trial-Based Functional Analysis to Design Effective Interventions for Students Diagnosed with Autism Spectrum Disorder." University of Cincinnati / OhioLINK, 2016. http://rave.ohiolink.edu/etdc/view?acc_num=ucin1479821070690541.

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26

Kadamani, Sami M. "USFKAD: An Expert System For Partial Differential Equations." [Tampa, Fla.] : University of South Florida, 2005. http://purl.fcla.edu/fcla/etd/SFE0001144.

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27

Jeisman, Joseph Ian. "Estimation of the parameters of stochastic differential equations." Thesis, Queensland University of Technology, 2006. https://eprints.qut.edu.au/16205/1/Joseph_Jesiman_Thesis.pdf.

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Stochastic di®erential equations (SDEs) are central to much of modern finance theory and have been widely used to model the behaviour of key variables such as the instantaneous short-term interest rate, asset prices, asset returns and their volatility. The explanatory and/or predictive power of these models depends crucially on the particularisation of the model SDE(s) to real data through the choice of values for their parameters. In econometrics, optimal parameter estimates are generally considered to be those that maximise the likelihood of the sample. In the context of the estimation of
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28

Jeisman, Joseph Ian. "Estimation of the parameters of stochastic differential equations." Queensland University of Technology, 2006. http://eprints.qut.edu.au/16205/.

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Stochastic di®erential equations (SDEs) are central to much of modern finance theory and have been widely used to model the behaviour of key variables such as the instantaneous short-term interest rate, asset prices, asset returns and their volatility. The explanatory and/or predictive power of these models depends crucially on the particularisation of the model SDE(s) to real data through the choice of values for their parameters. In econometrics, optimal parameter estimates are generally considered to be those that maximise the likelihood of the sample. In the context of the estimation of t
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29

Cheng, Jiuyi. "Two problems in function theory of one complex variable: local properties of solutions of second-order differential equations and number of deficient functions of some entire functions." Diss., Virginia Tech, 1994. http://hdl.handle.net/10919/38553.

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30

Swang, Theodore W. II. "A Mathematical Model for the Energy Allocation Function of Sleep." The Ohio State University, 2017. http://rave.ohiolink.edu/etdc/view?acc_num=osu1483392711778623.

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31

Petersen, Willis L. "The Lie Symmetries of a Few Classes of Harmonic Functions." Diss., CLICK HERE for online access, 2005. http://contentdm.lib.byu.edu/ETD/image/etd837.pdf.

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32

Bao, Han. "Investigating differential item function amplification and cancellation in application of item response testlet models." College Park, Md. : University of Maryland, 2007. http://hdl.handle.net/1903/7160.

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Thesis (Ph. D.) -- University of Maryland, College Park, 2007.<br>Thesis research directed by: Measurement, Statistics and Evaluation. Title from t.p. of PDF. Includes bibliographical references. Published by UMI Dissertation Services, Ann Arbor, Mich. Also available in paper.
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33

Herridge, Matthew L. "Differential effects of facial configuration on bilateral skin conductance as a function of hostility." Thesis, Virginia Tech, 1993. http://hdl.handle.net/10919/40644.

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The experiment was designed to investigate group differences by examining the effects of hostility on bilateral measures of skin conductance while making affective facial configurations. Males reporting high and low hostility were instructed in making facial configurations that were identified by raters as happy, angry, or neutral in affective valence. All subjects were asked to make the set of facial configurations twice with unstructured baselines taken prior to each face. The initial hypotheses included: (1) there would be higher skin conductance levels for the facial configuration trials t
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34

Calatayud, Gregori Julia. "Computational methods for random differential equations: probability density function and estimation of the parameters." Doctoral thesis, Universitat Politècnica de València, 2020. http://hdl.handle.net/10251/138396.

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[EN] Mathematical models based on deterministic differential equations do not take into account the inherent uncertainty of the physical phenomenon (in a wide sense) under study. In addition, inaccuracies in the collected data often arise due to errors in the measurements. It thus becomes necessary to treat the input parameters of the model as random quantities, in the form of random variables or stochastic processes. This gives rise to the study of random ordinary and partial differential equations. The computation of the probability density function of the stochastic solution is important
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35

Alu, Kelechukwu Iroajanma. "Solving the Differential Equation for the Probit Function Using a Variant of the Carleman Embedding Technique." Digital Commons @ East Tennessee State University, 2011. https://dc.etsu.edu/etd/1306.

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The probit function is the inverse of the cumulative distribution function associated with the standard normal distribution. It is of great utility in statistical modelling. The Carleman embedding technique has been shown to be effective in solving first order and, less efficiently, second order nonlinear differential equations. In this thesis, we show that solutions to the second order nonlinear differential equation for the probit function can be approximated efficiently using a variant of the Carleman embedding technique.
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36

Liebermeister, Wolfram. "Analysis of optimal differential gene expression." Doctoral thesis, [S.l. : s.n.], 2004. http://deposit.ddb.de/cgi-bin/dokserv?idn=97257347X.

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37

Perry, Richard James. "Attention and executive function in the differential diagnosis of Alzheimer's disease and other cortical dementias." Thesis, Imperial College London, 2005. http://hdl.handle.net/10044/1/8825.

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38

Sun, Xun. "Twin solutions of even order boundary value problems for ordinary differential equations and finite difference equations." [Huntington, WV : Marshall University Libraries], 2009. http://www.marshall.edu/etd/descript.asp?ref=1014.

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39

Navarro, Quiles Ana. "COMPUTATIONAL METHODS FOR RANDOM DIFFERENTIAL EQUATIONS: THEORY AND APPLICATIONS." Doctoral thesis, Universitat Politècnica de València, 2018. http://hdl.handle.net/10251/98703.

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Desde las contribuciones de Isaac Newton, Gottfried Wilhelm Leibniz, Jacob y Johann Bernoulli en el siglo XVII hasta ahora, las ecuaciones en diferencias y las diferenciales han demostrado su capacidad para modelar satisfactoriamente problemas complejos de gran interés en Ingeniería, Física, Epidemiología, etc. Pero, desde un punto de vista práctico, los parámetros o inputs (condiciones iniciales/frontera, término fuente y/o coeficientes), que aparecen en dichos problemas, son fijados a partir de ciertos datos, los cuales pueden contener un error de medida. Además, pueden existir factores exte
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40

Reyes, Ernesto Oscar. "The Riemann zeta function." CSUSB ScholarWorks, 2004. https://scholarworks.lib.csusb.edu/etd-project/2648.

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The Riemann Zeta Function has a deep connection with the distribution of primes. This expository thesis will explain the techniques used in proving the properties of the Rieman Zeta Function, its analytic continuation to the complex plane, and the functional equation that the the Riemann Zeta Function satisfies.
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41

MCKEE, ROBERTA LYNN. "THE DIFFERENTIAL BEHAVIOR OF GLUCAGON AGONISTS AND ANTAGONISTS ON NORMAL AND DIABETIC LIVER: EVIDENCE FOR CYCLIC-AMP - INDEPENDENT EVENTS." Diss., The University of Arizona, 1987. http://hdl.handle.net/10150/184083.

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A nonrecirculatory liver slice perifusion system has been developed and utilized for investigating glucagon-stimulated glycogenolysis in normal and diabetic states. It has been shown here that slices maintained in this system experience a controlled environment with respect to temperature and pH and remain viable throughout a three-hour experimental period based upon their maintenance of intracellular potassium levels. Although glycogen content falls by 40%, slices exhibit significant glycogenolysis in a dose-response manner upon challenge with glucagon, with maximal concentrations eliciting a
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42

Hendricks, Jeffrey James. "Spectral Stability of Weak Detonations in the Majda Model." BYU ScholarsArchive, 2013. https://scholarsarchive.byu.edu/etd/3626.

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Using analytical and numerical Evans-function techniques, we examine the spectral stability of weak-detonation-wave solutions of Majda's scalar model for a reacting gas mixture. We provide a proof of monotonicity of solutions. Using monotonicity we obtain a bound on possible unstable eigenvalues for weak-detonation-wave solutions that improves on the more general bound given by Humpherys, Lyng, and Zumbrun. We use a numerical approximation of the Evans function to search for possible unstable eigenvalues in the bounded region obtained by the energy estimate. For the parameter values tested, ou
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43

Kasturiratna, Dhanuja. "Assessing the Distributional Assumptions in One-Way Regression Model." Bowling Green State University / OhioLINK, 2006. http://rave.ohiolink.edu/etdc/view?acc_num=bgsu1148479945.

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44

Kuster, Jr George Emil. "On the role of student understanding of function and rate of change in learning differential equations." Diss., Virginia Tech, 2016. http://hdl.handle.net/10919/71827.

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In this research, I utilize the theoretical perspective Knowledge In Pieces to identify the knowledge resources students utilize while in the process of completing various differential equations tasks. In addition I explore how this utilization changes over the course of a semester, and how resources related to the concepts of function and rate of change supported the students in completing the tasks. I do so using data collected from a series of task-based individual interviews with two students enrolled in separate differential equations courses. The results provide a fine-grained descriptio
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Le, Roux Elizabeth. "The role of apex predators in ecosystem function: fear triggered cascades regulated by differential prey vulnerability." Thesis, Nelson Mandela Metropolitan University, 2016. http://hdl.handle.net/10948/14774.

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Trophic cascades involving large terrestrial mammals are very seldom empirically demonstrated. The high species diversity often associated with terrestrial systems is thought to modulate the strength of trophic cascades. In speciose systems, species often vary in vulnerability to consumption, hence some species are less responsive to top-down pressure. African large mammalian herbivores are highly diverse and vary greatly in body size, a characteristic linked to vulnerability to predation. Moreover, Africa is one of the last places to still support megaherbivores, species that have grown large
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46

Davis, Robert T., John N. Stabley, James M. Dominguez, et al. "Differential Effects of Aging and Exercise on Intra-Abdominal Adipose Arteriolar Function and Blood Flow Regulation." Digital Commons @ East Tennessee State University, 2013. https://dc.etsu.edu/etsu-works/4124.

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Adipose tissue (AT), which typically comprises an increased percentage of body mass with advancing age, receives a large proportion of resting cardiac output. During exercise, an old age-associated inability to increase vascular resistance within the intra-abdominal AT may compromise the ability of the cardiovascular system to redistribute blood flow to the active musculature, contributing to the decline in exercise capacity observed in this population. We tested the hypotheses that 1) there would be an elevated perfusion of AT during exercise with old age that was associated with diminished v
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47

Xie, Chunmei. "An efficient method for the calculation of the free-surface Green function using ordinary differential equations." Thesis, Ecole centrale de Nantes, 2019. http://www.theses.fr/2019ECDN0013/document.

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Le calcul des efforts hydrodynamiques de premier ordre sur un ou plusieurs corps perçant la surface libre est aujourd'hui bien maîtrisé, et plusieurs codes de calcul implémentant la méthode des singularités (dite BEM ou méthode d'élément frontière) ont été développés. Le cadre est la théorie linéarisée des écoulements potentiels à une surface libre. Dans ces codes BEM, les singularités utilisées ont la propriété intrinsèque de satisfaire à la fois l'équation de Laplace dans le domaine fluide ainsi que la condition linéarisée de surface libre. Ces singularités, dites fonctions de Green à surfac
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48

Platte, Rodrigo B. "Accuracy and stability of global radial basis function methods for the numerical solution of partial differential equations." Access to citation, abstract and download form provided by ProQuest Information and Learning Company; downloadable PDF file 8.72Mb, 143 p, 2005. http://gateway.proquest.com/openurl?url_ver=Z39.88-2004&res_dat=xri:pqdiss&rft_val_fmt=info:ofi/fmt:kev:mtx:dissertation&rft_dat=xri:pqdiss:3181853.

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49

Sjöberg, Johan. "Some Results On Optimal Control for Nonlinear Descriptor Systems." Licentiate thesis, Linköping University, Linköping University, Automatic Control, 2006. http://urn.kb.se/resolve?urn=urn:nbn:se:liu:diva-7489.

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<p>I denna avhandling studeras optimal återkopplad styrning av olinjära deskriptorsystem. Ett deskriptorsystem är en matematisk beskrivning som kan innehålla både differentialekvationer och algebraiska ekvationer. En av anledningarna till intresset för denna klass av system är att objekt-orienterade modelleringsverktyg ger systembeskrivningar på denna form. Här kommer det att antas att det, åtminstone lokalt, är möjligt att eliminera de algebraiska ekvationerna och få ett system på tillståndsform. Teoretiskt är detta inte så inskränkande för genom att använda någon indexreduktionsmetod kan gan
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50

Overfield, Jacob Ivan. "Impact of MIMO Transmission on CAF-Based Geolocation." Thesis, Virginia Tech, 2013. http://hdl.handle.net/10919/51857.

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The Cross Ambiguity Function (CAF) is often used for passive geolocation of an emitter based on the time difference of arrival (TDOA) and frequency difference of arrival (FDOA) of the received signals. CAF performance has been thoroughly investigated in regards to traditional single-input single-output (SISO) signals. Little is known about how the CAF will respond to signals from multiple-input multiple-output (MIMO) systems which utilize multiple antennas. This thesis focuses on characterizing the CAF's magnitude distribution in order to determine the probability of correctly determining the
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