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Dissertations / Theses on the topic 'Type formation'

Author: Grafiati

Published: 2 June 2025

Last updated: 31 July 2025

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1

Norris, Mark Anderson. "The formation of early-type galaxies." Thesis, Durham University, 2008. http://etheses.dur.ac.uk/2292/.

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This Thesis examines the formation and evolution of early-type elliptical and S0 galaxies. In order to shed light on the key processes which lead to the formation of elliptical and S0 galaxies a range of techniques have been employed. The kinematics and stellar populations of the major and minor axes of the nearby edge-on S0 galaxy NGC 3115 have been examined through deep Gemini-GMOS longslit spectroscopy. The behaviour of the radial profiles of the line strength indices is found to be well explained by a simple model where NGC 3115 is composed of two components; an older classical spheroidal

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2

Gilson, Gregory C. "Spiritual development by personality type." Online full text .pdf document, available to Fuller patrons only, 2003. http://www.tren.com.

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3

Thériault, Julie M. 1980 Apr 29. "Numerical studies on winter precipitation type formation." Thesis, McGill University, 2004. http://digitool.Library.McGill.CA:80/R/?func=dbin-jump-full&object_id=82439.

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Winter storms produce major problems for society and their varying types of precipitation are often the key factor responsible. The objective of this study is to better understand the formation of winter precipitation types (freezing rain, ice pellets, snow, slush, wet snow and refrozen wet snow) within the varying, and interacting, environmental conditions experienced within many winter storms. A one dimensional cloud model utilizing a double-moment microphysics scheme has been developed to address this issue. Temperature and moisture profiles favorable for the formation of different w

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4

Oser, Ludwig. "Formation and evolution of massive early-type galaxies." Diss., lmu, 2012. http://nbn-resolving.de/urn:nbn:de:bvb:19-139794.

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5

Schawinski, Kevin. "The star formation history of early-type galaxies." Thesis, University of Oxford, 2007. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.670098.

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6

Al-Edhari, Ali Jaber. "Complex organic molecules in solar-type star forming regions." Thesis, Université Grenoble Alpes (ComUE), 2016. http://www.theses.fr/2016GREAY048/document.

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Le but de la présente thèse est l'étude de la compléxité moléculaire dans les régions de formation stellaires. Cette thèse s'axe sur deux classes de molécule aux caractéristiques prébiotiques : les molécules organiques complexes et les cyanopolyynes.Dans ce contexte, j'ai analysé des données d'un seul échantillon de relevés spec- traux en exploitant des codes de transfert radiatif à l'équilibre thermodynamique local (LTE) et/ou non-LTE pour deux sources : une proto-étoile de type solaire dans un environnement calme (IRAS 16293-2422) et un proto-ama constitué de proto-étoile de type solaire (OM

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7

Crocker, Alison. "Molecular Gas and Star Formation in Early-Type Galaxies." Thesis, University of Oxford, 2009. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.525281.

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8

Renda, Agostino. "The formation of stellar halos in late-type galaxies." Swinburne Research Bank, 2007. http://hdl.handle.net/1959.3/34778.

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Thesis (PhD) - Swinburne University of Technology, 2007.<br>Submitted for the degree of Doctor of Philosophy, Swinburne University of Technology - 2007. Typescript. "May 2007". Bibliography: p. 225-237.

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9

Fan, Lulu. "Formation and evolution of massive early-type galaxies at high redshift." Doctoral thesis, SISSA, 2011. http://hdl.handle.net/20.500.11767/4604.

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In this thesis I present the results obtained during my PhD studies at SISSA in the field of galaxy formation, with focus on the problem of formation of Early Type Galaxies (ETGs) at high redshift. The interest to this issue has been increasing with time, since in the last decade observational evidence brought the idea that the formation and evolution of quasars is strictly related to that of ETGs. In order to tackle the galaxy formation most of the efforts has been put in developing semi-analytical and numerical codes based on the assumption that the hierarchy of galaxy Dark Matter halos tra

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10

Badman, Michael Keith. "Cellular mechanisms for islet amyloid formation and degradation." Thesis, University of Oxford, 1995. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.294384.

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11

Seybold, Hansjörg Florian. "Modeling river delta formation /." [S.l.] : [s.n.], 2009. http://e-collection.ethbib.ethz.ch/show?type=diss&nr=18263.

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12

RANGWALA, FATIMA ABDULLA. "RAS SIGNALING IN SCHWANN CELL TUMOR FORMATION: NEUROFIBROMATOSIS TYPE 1." University of Cincinnati / OhioLINK, 2003. http://rave.ohiolink.edu/etdc/view?acc_num=ucin1069774794.

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Rangwala, Fatima. "Ras signalling in Schwann cell tumor formation neurofibromatosis type 1 /." Cincinnati, Ohio : University of Cincinnati, 2003. http://rave.ohiolink.edu/etdc/view?acc%5Fnum=ucin1069774794.

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14

Moresco, Michele Ennio Maria <1982&gt. "Early-type galaxies as probes of galaxy formation and cosmology." Doctoral thesis, Alma Mater Studiorum - Università di Bologna, 2011. http://amsdottorato.unibo.it/3725/1/moresco_michele_tesi.pdf.

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The goal of this thesis is to analyze the possibility of using early-type galaxies to place evolutionary and cosmological constraints, by both disentangling what is the main driver of ETGs evolution between mass and environment, and developing a technique to constrain H(z) and the cosmological parameters studying the ETGs age-redshift relation. The (U-V) rest-frame color distribution is studied as a function of mass and environment for two sample of ETGs up to z=1, extracted from the zCOSMOS survey with a new selection criterion. The color distributions and the slopes of the color-mass and co

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15

Moresco, Michele Ennio Maria <1982&gt. "Early-type galaxies as probes of galaxy formation and cosmology." Doctoral thesis, Alma Mater Studiorum - Università di Bologna, 2011. http://amsdottorato.unibo.it/3725/.

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The goal of this thesis is to analyze the possibility of using early-type galaxies to place evolutionary and cosmological constraints, by both disentangling what is the main driver of ETGs evolution between mass and environment, and developing a technique to constrain H(z) and the cosmological parameters studying the ETGs age-redshift relation. The (U-V) rest-frame color distribution is studied as a function of mass and environment for two sample of ETGs up to z=1, extracted from the zCOSMOS survey with a new selection criterion. The color distributions and the slopes of the color-mass and co

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16

Steel, James. "Surface photometry of early-type galaxies in rich clusters." Thesis, Durham University, 1998. http://etheses.dur.ac.uk/4868/.

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This thesis investigates the morphology of early-type galaxies in two rich clusters using 2D surface photometry. In particular, the amount of light in the 'disk' component is focussed upon, as the presence of a disk is the main morphological criterion in distinguishing between the traditional 'elliptical' and 'S0' classes. Extensive and photometric E-band CCD observations of continuous areas of the Coma and Abell 1367 clusters were obtained at the 2.5 m Isaac Newton telescope, La Palma during March 1994. A subset of this large data-set has been used in this study, comprising a magnitude-limite

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17

Colborne, Timothy John. "Renewal and temperament spiritual formation in the context of personality type /." Theological Research Exchange Network (TREN), 1997. http://www.tren.com.

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18

Jaikaran, Emma Tracy Araminta Sunita. "Factors influencing human islet amyloid polypeptide fibril formation." Thesis, University of Oxford, 2000. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.342537.

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19

Alvaredo, Alejandra Mónica. "Drying shrinkage and crack formation /." Zürich, 1994. http://e-collection.ethbib.ethz.ch/show?type=diss&nr=10754.

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20

Bois, Maxime. "Formation & Evolution of early-types galaxies." Phd thesis, Université Claude Bernard - Lyon I, 2011. http://tel.archives-ouvertes.fr/tel-00594622.

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Une simple classification morphologique des galaxies de l'Univers local montre deux grandes familles: (1) les galaxies disques, avec des bras spiraux et dans deux-tiers des cas une barre stellaire; et (2) les galaxies elliptiques et lenticulaires, dites galaxies de type précoce ou early-type galaxies (ETGs), qui sont dominées par une composante stellaire sphéroidale. Les galaxies les plus massives de l'Univers local sont les ETGs. Ces galaxies présentent aussi une large variété de dynamique stellaire: elles peuvent avoir un champ de vitesse régulier et aligné avec la photométrie ou perpendicul

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21

Peplinski, Adam. "Numerical simulations of type III planetary migration." Doctoral thesis, Stockholm University, Department of Astronomy, 2008. http://urn.kb.se/resolve?urn=urn:nbn:se:su:diva-7461.

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<p>Planets are believed to form in primordial gas-dust discs surrounding newborn stars. An important breakthrough in our understanding of planetary formation was the discovery of extra-solar planets around sun-like stars, especially the frequent occurrence of giant planets on close orbits (hot Jupiters). The mechanisms involved in the formation of these objects remain uncertain, however the difficulties associated with their formation at their observed orbital radius has awoken an interest in theories for the migration of protoplanetary cores due to gravitational interaction with the disc. The

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22

Haston, Jennifer Louise. "The inhibition of type II collagen fibril formation in rheumatoid arthritis." Thesis, University of Strathclyde, 2002. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.248329.

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23

Terlevich, Alejandro Ivan. "Probing the star formation history of early-type galaxies in clusters." Thesis, Durham University, 1998. http://etheses.dur.ac.uk/4864/.

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In this thesis, we present a new photometric catalogue of the local Coma galaxy cluster in the Johnson U- and V- bands. We cover an area of 3360arcmin(^2) of sky, to a depth of V = 20mag in a 13 arcsec diameter aperture, and produce magnitudes for ~ 1400 extended objects in metric apertures from 8.8 to 26arcsec diameters. The mean internal RMS scatter in the photometry is 0.014mag in V, and 0.026mag in U, for Via(_13) < 17mag. We use this photometric catalogue to place limits on the levels of scatter in the colour- magnitude relation (CMR) in the Coma cluster. We subdivide the galaxy populatio

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24

Smith, Andy. "The formation of ultra-shallow p-type junctions using vacancy engineering." Thesis, University of Surrey, 2006. http://epubs.surrey.ac.uk/843072/.

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For the last 40 years a natural demand for faster, more complex, and therefore, more functional electronic systems, has been the fundamental driving force behind the miniaturisation of the complementary metal oxide semiconductor transistor. The formation of highly conducting, ultra-shallow, p-type junctions is a key component for the source/drain contact and extension regions of the p-channel metal oxide semiconductor transistor. However, the requirements are becoming increasingly more difficult to achieve as technology advances. In fact, new ways of achieving device improvements are being con

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25

Marthiens, Véronique. "Cadherines de type II et formation du circuit spinal sensori-moteur." Paris 6, 2004. http://www.theses.fr/2004PA066221.

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26

André, Bernard. "Formation de dépôts de carbone de type diamant sous bombardement ionique." Grenoble INPG, 1991. http://www.theses.fr/1991INPG0093.

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A l'aide de dispositifs de depot sous vide en phase vapeur, nous avons etudie l'effet d'un bombardement ionique sur des couches de carbone de type diamant en cours de croissance. Nous avons montre que cette assistance ionique a la croissance induit d'importantes modifications des caracteristiques des revetements (composition chimique, indice de refraction complexe, durete et contrainte mecanique) et de l'interface couche-substrat. L'evolution de la masse volumique des depots avec les parametres du bombardement ionique (densite de courant, energie et masse des ions) est presentee. Un modele de

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27

Dutton, Aaron A. "The formation and evolution of disk galaxies /." Zürich : ETH, 2006. http://e-collection.ethbib.ethz.ch/show?type=diss&nr=16802.

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28

Williams, Michael J. "Early-type disk galaxies." Thesis, University of Oxford, 2011. http://ora.ox.ac.uk/objects/uuid:936168ab-f49a-410a-9e1b-80c7ad7cf556.

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In this thesis I investigate the dynamics and stellar populations of a sample of 28 edge-on early-type (S0--Sb) disk galaxies, 22 of which host a boxy or peanut-shaped bulge. I begin by constructing mass models of the galaxies based on their observed photometry and stellar kinematics. Subject to cosmologically motivated assumptions about the shape of dark haloes, I measure in a purely dynamical way their stellar and dark masses. I make a preliminary comparison between the dynamically determined stellar masses and those predicted by stellar population models. I then compare the Tully-Fisher (lu

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29

Kuntschner, Harald. "The star formation history of early-type galaxies in the Fornax cluster." Thesis, Durham University, 1998. http://etheses.dur.ac.uk/4849/.

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We have measured central line strengths and line-strength gradients for a complete sample of early-type galaxies in the Fornax cluster, comprising 11 elliptical and 11 lenticular galaxies, more luminous than M(_B) = -17. We find that the centres of Fornax ellipticals follow the locus of galaxies of fixed age in Worthey's models and have metallicities varying roughly from half solar to 2.5 times solar. Line-strength gradients indicate that elliptical galaxies do not show age gradients with radius but do exhibit a decrease of ~ 0.4 dex in [Fe/H] between the centre and one effective radius. The c

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30

Chang, Hung Yau Alick. "Experimental studies of the formation mechanisms of Type I polar stratospheric clouds." Thesis, Massachusetts Institute of Technology, 1996. http://hdl.handle.net/1721.1/40170.

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31

CHUBERRE, HERVE. "Localisation de sources par formation de voies : une approche de type deconvolution." Rennes 1, 1994. http://www.theses.fr/1994REN10117.

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L'objet de cette these est de presenter une nouvelle methode de localisation de sources en traitement d'antenne. Cette methode s'apparente a une procedure de type deconvolution et utilise comme donnees les sorties d'une formation de voies standard (fvs). Le but est d'ameliorer les performances de la fv en realisant une deconvolution dans des secteurs spatiaux ou vraisemblablement il y a des sources eu egard aux valeurs de la sortie de fv dans ces secteurs. Le chapitre 2 rappelle les hypotheses classiques faites en traitement d'antenne dans le cas de sources acoustiques a bande etroite. On pres

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MacArthur, Diane L. A. "Amyloid fibril formation in islets of transgenic mice expressing human islet amyloid polypeptide." Thesis, University of Oxford, 1998. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.325942.

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33

Kertesz-Chaloupková, Katerina. "Regulation of turion formation in Spirodela polyrrhiza L /." [S.l.] : [s.n.], 1995. http://e-collection.ethbib.ethz.ch/show?type=diss&nr=11074.

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34

Oser, Ludwig [Verfasser], and Andreas [Akademischer Betreuer] Burkert. "Formation and evolution of massive early-type galaxies / Ludwig Oser. Betreuer: Andreas Burkert." München : Universitätsbibliothek der Ludwig-Maximilians-Universität, 2012. http://d-nb.info/102014372X/34.

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35

Becker, Sherry. "Depositional environments, provenance and sequence stratigraphy of the type Sassenach Formation, Jasper, Alberta." Thesis, National Library of Canada = Bibliothèque nationale du Canada, 1997. http://www.collectionscanada.ca/obj/s4/f2/dsk1/tape11/PQDD_0005/MQ44081.pdf.

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36

Moffitt, Jennifer Helen. "Formation of amyloid and lipid metabolism in islet pathology of type 2 diabetes." Thesis, University of Oxford, 2005. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.413177.

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37

Davis, Tom Owen. "Regulation of botulinum toxin complex formation in Clostridium botulinum : type A NCTC 2916." Thesis, Open University, 1998. http://oro.open.ac.uk/57744/.

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Genomic DNA fragments encoding the silent type B neurotoxin gene from Clostridium botulinum NCTC 2916 have been cloned and the complete nucleotide sequence determined. The translated sequence revealed that the gene encoded a neurotoxin which was closely related to type B neurotoxin genes from Group I Clostridium botulinum. However among the nucleotide sequence differences, aG to T transition has interrupted the coding sequence with the formation of a stop codon. In addition the deletion of an adenine residue has resulted in a frame-shift mutation. Analysis of the DNA sequence contiguous with t

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38

Kobayashi, Katsutoshi. "Formation of Ordered Macropores in p-Type Silicon and Their Application to Templates." Kyoto University, 2009. http://hdl.handle.net/2433/123890.

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Kyoto University (京都大学)<br>0048<br>新制・課程博士<br>博士(エネルギー科学)<br>甲第14737号<br>エネ博第190号<br>新制||エネ||43(附属図書館)<br>UT51-2009-D449<br>京都大学大学院エネルギー科学研究科エネルギー基礎科学専攻<br>(主査)教授尾形幸生, 教授萩原理加, 准教授作花哲夫<br>学位規則第4条第1項該当

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39

Abbasi, Nooshin. "Searching for molecular mechanisms sustaining tumor formation and progression in Neurofibromatosis type 1." Doctoral thesis, Università degli studi di Padova, 2015. http://hdl.handle.net/11577/3424249.

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SUMMARY Neurofibromatosis type 1 (NF1, OMIM # 162200), also known as von Recklinghausen, is an autosomal dominant disease caused by mutations of the NF1 gene coding a 2818 amino acid protein, neurofibromin (Nf1). More than 900 different mutations in the NF1 gene have been identified (HGMD, Human Genetic Mutation Database). Mutations of NF1 gene cause a variety of clinical manifestations such as the optic gliomas, neoplasms of the haematopoietic system and learning disabilities. However, the hallmark of NF1 is the development of multiple benign peripheral nerve sheath tumors called neurofibrom

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40

Casanova, Sophie. "L'émission x des étoiles jeunes de type solaire." Paris 6, 1994. http://www.theses.fr/1994PA066521.

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Il y a dix ans, le satellite Einstein a mis en évidence l'extraordinaire activité des étoiles jeunes de faible masse en rayons x. Cette activité vraisemblablement magnétique est interprétée en terme d'éruptions de type solaire, mais jusqu'à 10#5 fois plus intenses. Le satellite Rosat, lance en 1990, est de résolution et de sensibilité bien supérieures à Einstein, ce qui permet la découverte de nombreuses sources x ainsi qu'une étude spectrale et temporelle détaillée. Le travail de cette thèse est basé sur les premières observations Rosat de nuages moléculaires, sièges de formation stellaire. N

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41

Henriet, Elodie. "Impact du microenvironnement dans la composition, la plasticité et la formation des invadosomes." Thesis, Bordeaux, 2017. http://www.theses.fr/2017BORD0797/document.

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Les invadosomes sont des structures d’invasion plastiques et dynamiques qui interagissent avec leur microenvironnement. Ils possèdent différentes fonctions telles que l’adhésion, la mécanotransduction ou encore la dégradation de la matrice extracellulaire (MEC). Mon travail de thèse s’est concentré sur i) l’étude globale de la composition des invadosomes par spectrométrie de masse et ii) sur l’impact d’éléments du microenvironnement dans la formation de ces structures d’invasion.i) Les invadosomes sont des complexes multi-protéiques dont tous les partenaires ne sont pas encore totalement ident

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42

Artis, Damien. "Les contributions d'un dispositif de formation continue de type "elearning" au sein d'une organisation : le cas des formations "produit" au sein de Castorama." Toulouse 1, 2010. http://www.theses.fr/2010TOU10060.

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Depuis le début des années 2000, les formations de type "elearning" se multiplient au sein des entreprises françaises. A ce titre, nous avons souhaité examiner les effets de ce nouvel outil d'apprentissage, qui allie des techniques formatives et l'utilisation des NTIC, sur des dimensions organisationnelles et humaines de l'entreprise. Afin de réaliser cet objectif, nous avons opté pour une étude exploratoire dont le but était de mettre en exergue et de comprendre un large éventail de modifications que le elearning apporte lorsqu'il est implanté dans une entreprise. La société Castorama nous a

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Summers, Fiona A. "ProIAPP amyloid: Formation and modulation by clusterin and glycosaminoglycans." Thesis, The University of Sydney, 2006. http://hdl.handle.net/2123/8691.

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Pro-islet amyloid polypeptide (proIAPP) is the precursor to islet amyloid polypeptide (IAPP), a normally soluble 37-residue peptide that is co-secreted with insulin from the β-cells of the pancreas. Pancreatic amyloid composed of IAPP and β-cell loss are features of Type 2 diabetics. The deposition of IAPP amyloid adjacent to β-cells and the observation that synthetic IAPP is cytotoxic to cultured β-cells, has implicated the formation of amyloid from IAPP with the loss of β-cells, which can result in an inability to produce insulin. Recently, proIAPP has also been shown to form amyloid in vitr

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44

Sandkühler, Peter. "Kinetics of aggregation and gel formation in colloidal dispersions /." Zürich, 2004. http://e-collection.ethbib.ethz.ch/show?type=diss&nr=15625.

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45

Hörtensteiner, Stefan. "Re-formation of vacuoles in evacuolated tobacco mesophyll protoplasts /." [S.l.] : [s.n.], 1993. http://e-collection.ethbib.ethz.ch/show?type=diss&nr=10426.

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Ghielmi, Alessandro. "Molecular weight distribution and gel formation in emulsion polymerization /." [S.l.] : [s.n.], 1999. http://e-collection.ethbib.ethz.ch/show?type=diss&nr=13436.

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47

Makart, Stefan Klaus. "Enzymatic carbon-carbon bond formation integrated with SMB separation /." Zürich : ETH, 2007. http://e-collection.ethbib.ethz.ch/show?type=diss&nr=17115.

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48

Martinez, Osorio Yeisson Fabian. "Atomic Processes in Stellar Atmospheres : Inelastic Collisions and Effects on Late-type Spectra." Doctoral thesis, Uppsala universitet, Teoretisk astrofysik, 2015. http://urn.kb.se/resolve?urn=urn:nbn:se:uu:diva-249168.

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Chemical abundances as measured from stellar spectral lines are often subject to uncertainties due to lack of accurate data for inelastic collisions, which is needed for non-local thermodynamic equilibrium (non-LTE) modelling. For cool stars, understanding of collision processes with electrons and hydrogen atoms is required to achieve high precision measurements. In this thesis, I have investigated the role of these collisions on the non-LTE formation of Li and Mg spectral lines in late-type stars. In the case of Li, electron impact excitation processes were calculated using the R-matrix with

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49

Althaus, Martin. "Asymmetric C - F bond formation catalyzed by ruthenium PNNP complexes /." Zürich : ETH, 2008. http://e-collection.ethbib.ethz.ch/show?type=diss&nr=17673.

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50

Dick, John Alexander Gordon. "The effect of type-I antifreeze proteins on the kinetics of methane hydrate formation /." Thesis, McGill University, 2006. http://digitool.Library.McGill.CA:80/R/?func=dbin-jump-full&object_id=99758.

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The formation of gas hydrates in the oil and gas industry causes numerous problems that require costly solutions and operation downtime. A great deal of hydrate research has focused on their prevention either through kinetic or thermodynamic inhibitors. Recently, antifreeze proteins (AFPs) produced by cold adapted organisms have been found to have a kinetic inhibitory effect on clathrate hydrates.<br>Kinetic experiments were conducted on the methane-water system in the presence of AFPs by measuring the gas uptake during the formation of methane hydrate in a 610 cc high pressure crystallizer. T

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