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Dissertations / Theses on the topic 'Macromolecules'

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1

Larsericsdotter, Helén. "Macromolecules at Interfaces." Doctoral thesis, Uppsala University, Centre for Surface Biotechnology, 2004. http://urn.kb.se/resolve?urn=urn:nbn:se:uu:diva-4661.

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<p>In this thesis, the structure and stability of globular proteins adsorbed onto nanometer-sized hydrophilic silica particles were investigated using differential scanning calorimetry (DSC), hydrogen/deuterium exchange (HDX), and mass spectrometry (MS). The adsorption process itself was characterized with fluorescence and absorption spectroscopy and surface plasmon resonance (SPR). The combination of these methods offered a unique insight into adsorption-induced changes within proteins related to their adsorption characteristics. DSC contributed with thermodynamic information on the overall s
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2

Larsericsdotter, Helén. "Macromolecules at interfaces /." Uppsala : Acta Universitatis Upsaliensis : Univ.-bibl. [distributör], 2004. http://urn.kb.se/resolve?urn=urn:nbn:se:uu:diva-4661.

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3

Ambrogi, Marcela. "Suplementação do meio de transporte com antioxidantes e moduladores de AMP cíclico como estratégia para melhorar a qualidade de oócitos bovinos destinados à produção in vitro de embriões /." Jaboticabal, 2016. http://hdl.handle.net/11449/142002.

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Orientador: Gisele Zoccal Mingoti<br>Banca: Fernanda da Cruz Landim<br>Banca: Joaquim Mansano Garcia<br>Resumo: O objetivo desse estudo foi avaliar os efeitos da suplementação do meio com diferentes fontes de macromoléculas, com bloqueadores da meiose e com antioxidantes durante o transporte de oócitos bovinos por 6 horas sobre: 1) progressão da maturação nuclear; 2) maturação citoplasmática e 3) competência no desenvolvimento e criotolerância dos embriões produzidos. Para tanto, o meio de transporte de oócitos foi suplementado com bloqueadores da meiose (forscolina e IBMX; Experimento 1) ou c
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4

Stacklies, Wolfram. "Force Distribution in Macromolecules." Doctoral thesis, Universitätsbibliothek Leipzig, 2010. http://nbn-resolving.de/urn:nbn:de:bsz:15-qucosa-39367.

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All living organisms utilize thousands of molecular building blocks to perform mechanical tasks. These building blocks are mostly proteins, and their mechanical properties define the way they can be utilized by the cell. The spectrum ranges from rope like structures that give hold and stability to our bodies to microscopic engines helping us to perform or sense mechanical work. An increasing number of biological processes are revealed to be driven by force and well-directed distribution of strain is the very base of many of these mechanisms. We need to be able to observe the distribution of st
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5

Darmani, Homa. "Erythrocyte adhesion by macromolecules." Thesis, Cardiff University, 1989. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.278681.

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6

Leute, Maria. "Macromolecules with phosphorus functionalities." [S.l. : s.n.], 2007. http://nbn-resolving.de/urn:nbn:de:bsz:289-vts-60833.

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7

Li, Youyong Kuppermann Aron. "Atomistic simulation of macromolecules /." Diss., Pasadena, Calif. : California Institute of Technology, 2005. http://resolver.caltech.edu/CaltechETD:etd-12072004-021118.

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8

Petraglio, Gabriele Carlo Luigi. "Large scale motions in macromolecules /." Zürich : ETH, 2006. http://e-collection.ethbib.ethz.ch/show?type=diss&nr=16786.

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9

Obermayer, Benedikt. "Mechanics and information of macromolecules." Diss., lmu, 2010. http://nbn-resolving.de/urn:nbn:de:bvb:19-119656.

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10

Tang, Yi-wen. "Surface modifying macromolecules for biomaterials." Thesis, University of Ottawa (Canada), 1995. http://hdl.handle.net/10393/10318.

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In this thesis, new biomaterials were developed by incorporating surface modifying macromolecules (SMMs) that enriched the surface with a fluoro-chemistry. The SMMs contained a linear polyurethane as the prepolymer component and the prepolymer was end-capped by a fluorinated alcohol. The SMM materials and the blend of these SMMs with the polyester-urea-urethane base polymer were characterized with respect to their bulk and the surface properties, response to their biodegradation in the presence of enzyme and their fibrinogen adsorption characteristics. The SMMs were found to have selectively m
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11

Ren, Jingshan. "Structural studies on biological macromolecules." Thesis, University of Oxford, 1993. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.334959.

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12

Shaw, John S. "Information recognition in synthetic macromolecules." Thesis, University of Reading, 2010. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.542260.

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13

Svebilius, Christian. "Rigid Body Simulation of MacroMolecules." Thesis, Umeå universitet, Institutionen för fysik, 2008. http://urn.kb.se/resolve?urn=urn:nbn:se:umu:diva-94715.

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A computer model for simulating experiments done on surface organelles(so called pili) on the Escherichia Coli bacteria have been developedand implemented. The objective of the computer simulation wasto mimic the results of experiments done with optical tweezers and to displaya graphical, three dimensional, representation of these experiments.The experiments measured the force response to elongation of pili.This force response can be divided into three regions of elongation, regionI, II and III, each with different properties. Region I is characterized by aconstant increase in force, in region
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14

Khan, Majad. "New routes to hyperbranched macromolecules." Thesis, University of Cambridge, 2004. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.616098.

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15

Del, Regno Annalaura. "Microscopic behaviour of porous macromolecules." Thesis, University of Manchester, 2014. https://www.research.manchester.ac.uk/portal/en/theses/microscopic-behaviour-of-porous-macromolecules(d1eb5218-a2f3-41db-a6ee-7e7d45e37f4d).html.

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This Thesis investigates computationally the behaviour of two novel microporous materials,organic molecules of intrinsic microporosity (OMIMs) and polymers of intrinsic microporosity(PIMs). OMIMs and PIMs are organic amorphous materials, which achieve microporosityby packing inefficiently. The design of amorphous materials is challenging because their self-assembly process is not known. Predictive molecular simulations can help in recognising thefeatures that affect the properties of these materials, and guiding in the design of new structures with desired performances. OMIMs are highly concav
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16

Vickaryous, William Jake. "A design strategy for group 15 supramolecular assemblies /." Connect to title online (ProQuest), 2008. http://proquest.umi.com/pqdweb?did=1525704541&sid=1&Fmt=2&clientId=11238&RQT=309&VName=PQD.

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Thesis (Ph. D.)--University of Oregon, 2008.<br>Typescript. Includes vita and abstract. Includes bibliographical references (leaves 69-81). Also available online in ProQuest, free to University of Oregon users.
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17

Jiwani, Shahwar. "Hydrodynamic characterisation of macromolecules in cucurbits." Thesis, University of Nottingham, 2016. http://eprints.nottingham.ac.uk/33752/.

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This thesis comprises of the study performed on the extraction, isolation and structural characterisation of macromolecular components from the three members of the family Cucurbitaceae. In particular, the polysaccharides from C.moschata, C. maxima and C. pepo (butternut squash, zucchini and pumpkin, respectively) and oil bodies from the seeds of C. pepo are selected on the basis of their antidiabetic potential. The study centred around structural characterisation of the polysaccharides using hydrodynamical methods such as analytical ultracentrifugation (sedimentation velocity and sedimentatio
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18

Williams, Pamela Ann. "Time-resolved structural studies on macromolecules." Thesis, University of Oxford, 1996. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.318463.

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19

Page, D. J. "The electrochemistry of some biological macromolecules." Thesis, University of Oxford, 1986. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.376947.

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20

Mears, Matthew. "Diffusion of macromolecules in confined environments." Thesis, University of Sheffield, 2011. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.554907.

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This thesis is concerned with using diffusing molecules as a probe to understanding changes in both two- and three-dimensional polymer systems. Fluorescence correlation spectroscopy (FCS) is used to measure the diffusion coefficient of a fluorescently labelled molecule within poly (methacrylic acid) (PMAA hydrogels and adsorbed onto poly(alkyl mcthacrylate) thin films. Responsive hydrogels such as PMAA arc of great importance in controlled release systems such as drug delivery. The hydrogcls studied were found to respond to temperature, pH. and salt concentrations in ways that can be utilised
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21

Sykes, Adam. "High-throughput computational chemistry of macromolecules." Thesis, University of Liverpool, 2008. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.507497.

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22

Ward, N. P. "Electron-optical studies of biological macromolecules." Thesis, University of Manchester, 1987. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.383898.

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23

Bakir, E. T. "Synthesis of macromolecules bearing fluorescent groups." Thesis, University of Sussex, 1987. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.382496.

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24

Mueller, A. J. "Extensional flow of macromolecules in solution." Thesis, University of Bristol, 1989. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.234875.

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25

Johnston, Scott Travis 1971. "Convective transport of macromolecules in gels." Thesis, Massachusetts Institute of Technology, 1999. http://hdl.handle.net/1721.1/85359.

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26

Han, Lin Ph D. Massachusetts Institute of Technology. "Nanomechanics of cartilage extracellular matrix macromolecules." Thesis, Massachusetts Institute of Technology, 2007. http://hdl.handle.net/1721.1/42134.

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Thesis (Ph. D.)--Massachusetts Institute of Technology, Dept. of Materials Science and Engineering, 2007.<br>Includes bibliographical references (p. 187-201).<br>In this thesis, the shear and self-adhesion nanomechanical properties between opposing cartilage aggrecan macromolecules were probed. In addition, nanoscale dynamic oscillatory mechanical properties of cartilage and its type II collagen network was measured. Aggrecan shear nanomechanics was assessed via microcontact printing and lateral force microscopy. Lateral force between aggrecan and the probe tip, and compression of aggrecan was
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27

Congdon, Thomas Richard. "Ice growth inhibition by synthetic macromolecules." Thesis, University of Warwick, 2015. http://wrap.warwick.ac.uk/73931/.

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Animals, plants and bacteria can survive sub-zero environments by using specialist proteins that inhibit ice growth. There has been a great deal of work into trying to understand and exploit these proteins for use in cryopreservation, but several strategies fail as the protein’s mechanism for ice growth inhibition causes ice to grow into needle-like crystals, which cause mechanical damage to the cryopreserved material. A range of studies have shown that this shaping can be removed, without affecting ice growth inhibition activity. Synthetic mimics exist, the most interesting being the simple p
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28

Walker, Jessica Mary. "Role of macromolecules in coccolithophore biomineralization." Thesis, University of Edinburgh, 2018. http://hdl.handle.net/1842/31401.

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Biomineralization refers to the production of mineralized tissues by organisms. The fine control which organisms can exert over this process produces crystals with morphologies and properties contrasting to that of non-biogenic crystals and specifically altered to suit the required functional need. A key model system of biomineralization are a unicellular marine algae, coccolithophores, which produce calcium carbonate scales known as coccoliths. These coccoliths are comprised of arrangements of single crystals of calcite interlocked to form a plate-shaped structure. Coccoliths are developed in
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29

FONTENAS, CHRISTOPHE. "Synthese totale de macromolecules polypyridiniques helicoidales." Paris 11, 1995. http://www.theses.fr/1995PA112103.

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Le travail presente dans ce memoire decrit la premiere synthese totale d'une helice macrocyclique polypyridinique possedant 15 cycles adjacents. Dans le chapitre i, qui constitue la partie bibliographique, nous presentons l'utilisation des molecules polypyridiniques en temps que recepteurs supramoleculaires et en temps que ligands pour les metaux de transition. Nous presentons ensuite les methodes couramment utilisees pour synthetiser le noyau pyridine. Dans le chapitre ii, apres avoir analyse les resultats de tentatives infructueuses, nous presentons une autre strategie de synthese basee sur
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30

Snell, Paul Robert. "Modelling the pharmacokinetic distribution of macromolecules." Thesis, University of Bath, 1994. https://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.385027.

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31

Feist, Florian. "Reading information from sequence-defined macromolecules." Thesis, Queensland University of Technology, 2021. https://eprints.qut.edu.au/208424/1/Florian_Feist_Thesis.pdf.

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Coding and decoding information into and from (bio)macromolecules is of pivotal importance for most processes in nature. A simple readout methodology constitutes a key challenge for data-storage in artificial molecules. The determination of the comonomer-order in synthetic sequence-defined macromolecules, however, requires elaborate analytical techniques. The herein presented work focuses on the synthesis of sequence-defined macromolecules via photochemical ligation reactions, and ultimately the development of a novel fluorescence-based readout of the comonomer-order. The synthesis of rigid mu
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32

Jones, E. Y. "Structural and dynamic studies on biological macromolecules." Thesis, University of Oxford, 1985. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.371551.

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33

Hadfield, Andrea Teresa. "Rapid diffraction studies on crystalline biological macromolecules." Thesis, University of Oxford, 1992. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.315744.

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34

Wan, Yinhua. "Fractional biological macromolecules using carrier phase ultrafiltration." Thesis, University of Oxford, 2004. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.409749.

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35

Tych, Katarzyna Maria. "Terahertz time-domain spectroscopy of biological macromolecules." Thesis, University of Leeds, 2011. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.540584.

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36

Brown, P. A. "Ultrasonic studies of colloidal systems containing macromolecules." Thesis, University of Salford, 1988. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.384108.

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37

Stancil, Byron Miguel 1976. "Design of a programmable filter for macromolecules." Thesis, Massachusetts Institute of Technology, 2002. http://hdl.handle.net/1721.1/89371.

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38

Edwards, Aurélie. "Filtration of macromolecules by renal glomerular capillaries." Thesis, Massachusetts Institute of Technology, 1996. http://hdl.handle.net/1721.1/11265.

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39

Otto, Oliver. "Single macromolecules under tension and in confinement." Thesis, University of Cambridge, 2012. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.610166.

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40

Richter, Dieter, Ralf Biehl, Michael Monkenbusch, Bernd Hoffmann, and Rudolf Merkel. "Polymer dynamics from synthetic to biological macromolecules." Universitätsbibliothek Leipzig, 2016. http://nbn-resolving.de/urn:nbn:de:bsz:15-qucosa-193062.

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In soft materials entropic and enthalpic contributions are of similar magnitude and balance each other. Therefore, the macroscopic mechanical and rheological properties and the phase changes are determined to a high degree by thermal motion of the atoms and molecules. Most of the relevant dynamics takes place on mesoscopic length and time scales in between the picosecond atomic scale and the macroscopic frame. Allowing for the proper space time observation window, neutron spin echo (NSE) spectroscopy uniquely allows to address these motions. Here we briefly present some key experimental result
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41

Richter, Dieter, Ralf Biehl, Michael Monkenbusch, Bernd Hoffmann, and Rudolf Merkel. "Polymer dynamics from synthetic to biological macromolecules." Diffusion fundamentals 7 (2007) 10, S. 1-16, 2007. https://ul.qucosa.de/id/qucosa%3A14167.

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In soft materials entropic and enthalpic contributions are of similar magnitude and balance each other. Therefore, the macroscopic mechanical and rheological properties and the phase changes are determined to a high degree by thermal motion of the atoms and molecules. Most of the relevant dynamics takes place on mesoscopic length and time scales in between the picosecond atomic scale and the macroscopic frame. Allowing for the proper space time observation window, neutron spin echo (NSE) spectroscopy uniquely allows to address these motions. Here we briefly present some key experimental result
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42

Trenor, Scott Russell. "Synthesis and Characterization of Tailored Photoactive Macromolecules." Diss., Virginia Tech, 2004. http://hdl.handle.net/10919/27314.

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Coumarin and cinnamate derivatives were positioned as either polymer chain ends or side groups to synthesize photoactive macromolecules and gain the ability to reversibly control molecular weight and crosslink density using UV light. The cinnamates and coumarins were reacted onto the polymers via multiple reaction pathways. Polymers were functionalized with coumarin or cinnamate groups via an esterification reaction between hydroxyl functionalities and an acid chloride derivatized coumarin group. In addition to the esterification reaction, cinnamates were also coupled to polymers via a ring
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43

Whited, Joshua. "Biomimetic Macromolecules for Macrophage Targeting and Modulation." Cleveland State University / OhioLINK, 2018. http://rave.ohiolink.edu/etdc/view?acc_num=csu1525886398877844.

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44

Amerein, Béatrice. "Modelisation et representation dynamique de macromolecules biologiques." Université Louis Pasteur (Strasbourg) (1971-2008), 1988. http://www.theses.fr/1988STR13040.

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45

Jeong, Wonhee. "Synthesis and properties of large ring macromolecules /." May be available electronically:, 2008. http://proquest.umi.com/login?COPT=REJTPTU1MTUmSU5UPTAmVkVSPTI=&clientId=12498.

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46

Judge, Elizabeth Jean. "LASER ELECTROSPRAY MASS SPECTROMETRY FOR BIOLOGICAL MACROMOLECULES." Diss., Temple University Libraries, 2011. http://cdm16002.contentdm.oclc.org/cdm/ref/collection/p245801coll10/id/160135.

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Chemistry<br>Ph.D.<br>The use of femtosecond (fs) laser pulses in laser-induced breakdown spectroscopy (LIBS) and for chemical analysis using mass spectrometry is explored. A comparison of fs-LIBS and remote filament-induced breakdown spectroscopy (R-FIBS) in the analysis of graphite composites yielded more accurate results with filaments due to intensity clamping within the filament. The investigation of fs-LIBS and R-FIBS in the detection of explosives led to the discovery of femtosecond vaporization of intact molecules under ambient conditions. This knowledge was then used in the developmen
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47

Schneider, Elia. "Quantum Transport of Electronic Excitations through Macromolecules." Doctoral thesis, Università degli studi di Trento, 2015. https://hdl.handle.net/11572/367965.

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The investigation of real-time dynamics of charged and neutral quantum excitation propagating through macromolecular systems is receiving growing attention due to its potentially countless applications in nano-scale (opto-)electronics and in biophysics. Several key issues have not been fully clarified yet, including the role played by molecular thermal fluctuations and the possible correlations between the degree of quantum coherence and the efficiency of the transport process. In order to gain some insight, we developed a rigorous and systematic framework describing quantum transport, based
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48

Schneider, Elia. "Quantum Transport of Electronic Excitations through Macromolecules." Doctoral thesis, University of Trento, 2015. http://eprints-phd.biblio.unitn.it/1429/1/PhD_tesis.pdf.

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The investigation of real-time dynamics of charged and neutral quantum excitation propagating through macromolecular systems is receiving growing attention due to its potentially countless applications in nano-scale (opto-)electronics and in biophysics. Several key issues have not been fully clarified yet, including the role played by molecular thermal fluctuations and the possible correlations between the degree of quantum coherence and the efficiency of the transport process. In order to gain some insight, we developed a rigorous and systematic framework describing quantum transport, bas
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49

Berteotti, Anna. "Large scale conformational plasticity in biological macromolecules." Doctoral thesis, Scuola Normale Superiore, 2011. http://hdl.handle.net/11384/85787.

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50

Fortunati, Nicola. "Molecular Dynamics Methods applied to flexible macromolecules." Doctoral thesis, Università degli studi di Padova, 2016. http://hdl.handle.net/11577/3424402.

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Cement-based materials, such as concrete or mortars, are usually considered materials with low technological level. Although they are the most employed human made materials in the world, others such as wood, plastics, metals and even stones are usually more valued in the everyday life: probably the fact that cement is cheap, readily available, common, and has been employed successfully for centuries, contributes to its low technology perception. However, this vision is far from the reality: the cement paste is a complex multicomponent and heterogeneous composite system, with different structu
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