Dissertations / Theses: 'Ray Rice'

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Booker, Elizabeth Grace. "Unnecessary roughness| Viral video, circulation, and proof in the Ray Rice case." Thesis, The University of North Carolina at Charlotte, 2016. http://pqdtopen.proquest.com/#viewpdf?dispub=10118020.

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The National Football League (NFL) is no stranger to criticism regarding their players and violence against women. One of the more publicized cases transpired following surveillance videos that surfaced 7 months apart from each other; the first depicting former Baltimore Ravens running back Ray Rice knocking his then fiancée unconscious in a casino elevator, and the second depicting Rice dragging her body out of the elevator. It was only after the second video surfaced that Rice lost his contract with the Baltimore Ravens and was suspended indefinitely from the NFL.

The videos circulated in viral patterns within news, sport, and social media, raising questions regarding the NFL’s record on domestic violence issues and its integrity as an organization. Where cases of domestic violence are traditionally hidden, secretive, and private, this case exemplifies a collapse of those public/private dimensions and allowed the public to see what happened. Questions about circulation and the value of video evidence became central to the Rice case due to widespread presumptions that the NFL had the footage, and that it must have seen it before punishing Rice after the first video release.

Throughout this thesis I argue that the Ray Rice case highlights the cultural parallels associated with professional athletes and crimes of domestic violence, that the prominence of surveillance video as a media form conditions specific expectations and desires, and that the Rice case demonstrates how viral videos can operate as an explicit form of proof in contemporary society.

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Harris, Pauline Lisa. "A search for gamma ray burst neutrinos using the Radio Ice Cherenkov Experiment." Thesis, University of Canterbury. Physics and Astronomy, 2008. http://hdl.handle.net/10092/2166.

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The Radio Ice Cherenkov Experiment(RICE) located at the South Pole, is designed to detect the coherent broad-band radio Cherenkov radiation emitted when a high energy (10¹⁵ to 10¹⁸ eV) neutrino interacts with a nucleon in the ice. Observations have identified that Gamma Ray Bursts(GRBs) are possible sites for high energy neutrino production. We consider here GRBs which occurred in the years 2001 to 2005 inclusive during the operational times of RICE. Using GRB photon spectral data, we calculate the neutrino spectra predicted for these GRBs and the subsequent event number expected in RICE. We re-analyze RICE data in small time windows surrounding the GRB burst start times using a refined method involving by eye analysis of this reduced data set and find no neutrino events in the data set. Using the effective volume of RICE appropriate for each GRB we calculate neutrino flux limits for the GRBs. Although the flux limits are several orders of magnitude weaker than the expected flux, the RICE GRB neutrino limits are the only limits in the PeV to EeV energy range.

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Holloway, Jovantae S. "Public sentiment on intimate partner violence| An analysis of twitter response to the Ray Rice incident." Thesis, California State University, Long Beach, 2015. http://pqdtopen.proquest.com/#viewpdf?dispub=1587905.

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This thesis examines the public perception of the Ray Rice and Janay Rice intimate partner violence (IPV) incident that occurred on February 19, 2014. This event became the source of thousands of tweets, revealing a representation of public response to IPV through the lens of sports, African American celebrities and gender. Exploring public response through social media, this thesis analyzed a sample of 332 tweets at two time periods, one centering around the NFL announcement of a two-day suspension of Ray Rice and the other later announcement regarding the announced indefinite suspension of Ray Rice. The thesis includes a qualitative investigation of tweet contents to examine public sentiment regarding IPV victimization and accountability during the two time periods. This study expands on research on IPV and social work through being one of the first research projects to integrate an analysis of gender, violence and social media.

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4

Teraishi, Masayoshi. "Inheritance of a mutable slender-glume mutation induced by gamma-ray irradiation in rice (Oryza sativa L.)." Kyoto University, 2001. http://hdl.handle.net/2433/78127.

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5

Sisler, Heidi E. "Crisis of Man to Crisis of Men: Ray Rice and the NFL's Transition from Crisis of Image to Crisis of Ethics." TopSCHOLAR®, 2015. http://digitalcommons.wku.edu/theses/1520.

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Using typologies by Benoit (1995), Seeger (2006), and Heath (2006) this study argues that when an organization encounters multiple complications (e.g., perceived guilt, magnitude of harm, nature of the victims, etc.) compounding a crisis situation, that the organization’s best course of action is to employ atonement rhetoric. Second, this study also argues for the inclusion of a new best practice in crisis communication, which highlights the importance of organizations to recognize the impact visual evidence, especially video footage, has on complicating crisis response while also increasing demand for an appropriate and timely response. To do this the study uses the above typologies as well as Koesten and Rowland (2004) to carry out a rhetorical analysis of the NFL’s response to the Ray Rice crisis. This study finds that the NFL’s crisis response through the first three phases, though using nearly all of Benoit’s (1995) strategies, fails to meet all of Seeger’s (2006) and Heath’s (2006) best practices. It is only through meeting the requirements for atonement set out by Koesten and Rowland (2004) that the NFL meets the recommended best practices and achieves resolution from this crisis.

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RAMBO, CARLOS R. "Obtenção de sílica e carbeto de silício a partir da exposição da palha de arroz a microondas e a campos eletromagnéticos na faixa de r.f." reponame:Repositório Institucional do IPEN, 1997. http://repositorio.ipen.br:8080/xmlui/handle/123456789/10676.

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Dissertacao (Mestrado)
IPEN/D
Instituto de Pesquisas Energeticas e Nucleares - IPEN/CNEN-SP

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Moreno, Campos Ana Gabriela. "Roberto Matta: Visiones e influencias de un grabador desconocido." Doctoral thesis, Universitat Politècnica de València, 2014. http://hdl.handle.net/10251/36739.

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Roberto Sebastian Matta Echaurren, artista chileno surrealista, se conoce principalmente por su trabajo pictórico. Hoy, con la presente tesis se desea mostrar, explorar, investigar y deducir cómo este artista plástico principalmente pictórico, encuentra en el grabado un camino paralelo en el desarrollo de su obra, un camino bastante desconocido hasta este momento. La tesis que se presenta parte desde los inicios de su vida y relata el transcurso en ella. Ya que todos estos factores históricos y personales son los que nos ayudarán a conocer y comprender quién es Roberto Sebastian Matta Echaurren, un artista que nunca se consideró chileno, un artista universal y un pintor al que nunca se le consideró grabador, a pesar de la cantidad y calidad de su obra gráfica. Estas últimas ideas se expresan y se exponen en profundidad posteriormente dentro de la presente tesis. Luego, la investigación presenta una explicación del por qué es el título "Visiones e influencias de un grabador desconocido" para así poder vislumbrar cómo Matta entiende y vive el arte. Y lo más relevante cómo Matta descubre el grabado, dónde, cómo, cuándo, y por qué desea expresarse en esta área artística. Y se enuncia algo muy relevante que son los reconocidos ¿atelieres¿ de grabado en los que Matta eligió trabajar. Posteriormente se indican los dos atelieres más significativos donde trabajó Matta que son: Atelier George Visat - Albert Dupont y Atelier Fernand Mourlot ¿ Frank Bordas, haciendo un énfasis en la relación de Roberto Matta y Frank Bordas ya que es a partir de esta relación y los datos que nos entregaron las fuentes directas que podremos entender y comprender cómo Matta ve el grabado. Todo lo descrito son las bases que nos guiarán a un segmento esencial de esta tesis que es el capítulo titulado ¿Pintura y Grabado". Dentro de este capítulo veremos la pintura de Matta, su obra finalizada y su proceso dentro de ella. Con el resultado de toda esta información, hacemos un paralelo pictórico y gráfico, siendo lo fundamental establecer y esclarecer si existe o no una relación entre la pintura y el grabado de Roberto Matta. La catalogación de los grabados es el núcleo de la presente tesis, siendo el primer catálogo técnico de la obra de Matta, a pesar de que esta tesis se comenzó hace mas de 5 años, aún no existe un catálogo técnico y razonado completo de su obra. Hoy se presenta un catálogo más completo que los existentes aunque no se posee aún la totalidad de su obra. Posteriormente a la catalogación de sus grabados se presenta un análisis y comentarios para comprender la obra gráfica de este artista, en ella se eligen por grado de relevancia, a nivel histórico, personal o plástico seis obras gráficas, que son: The New School, Hom¿mere, El verbo hommerica, El gran Burundi-burunda ha muerto, Don Q y Ubu Roi. Para finalizar se ha considerado interesante presentar una cronología de la vida y obra de Roberto Matta que estarán unidas a los hechos históricos chilenos y mundiales para darnos un contexto político y social importante que se ve reflejado en las obras plásticas del artista. Deseo mencionar que las ¿Visiones e influencias de un grabador desconocido¿ no es una investigación completa ni acabada, ya que, la finalización de este trabajo fue truncado por una integrante relevante de la familia del artista, no obstante se logra presentar casi un 80% de su trabajo gráfico. Siendo esta tesis el destape hacia esa parte que el artista escondía y protegía como un secreto y de la cual actualmente solo conocemos fragmentos para su comercialización. Posteriormente a la primera revision de la presente tesis por los investigadores externos, se han realizado ciertos cambios, uno es sobre la presentacion del grafico familiar y de la presentacion de las fichas, todos los cambios son a nivel grafico de la presente tesis. Finalmente aquí esta!, se la presento hoy ¿Visiones e influencias para un grabador desconocido¿ un trabajo contra el miedo, contra el olvido, contra el secreto.
Moreno Campos, AG. (2014). Roberto Matta: Visiones e influencias de un grabador desconocido [Tesis doctoral no publicada]. Universitat Politècnica de València. https://doi.org/10.4995/Thesis/10251/36739
TESIS

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FERNANDES, ALBERTO de A. "Síntese de zeolitas e wolastonita a partir da cinza da casca do arroz." reponame:Repositório Institucional do IPEN, 2006. http://repositorio.ipen.br:8080/xmlui/handle/123456789/11429.

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Tese (Doutoramento)
IPEN/T
Instituto de Pesquisas Energeticas e Nucleares - IPEN/CNEN-SP

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ARAUJO, MARIANA S. de. "Utilização de resíduos de catalisador (ECAT) e cinzas da casca de arroz (CCA) na elaboração de vidros silicatos soda-cal destinados a embalagem." reponame:Repositório Institucional do IPEN, 2016. http://repositorio.ipen.br:8080/xmlui/handle/123456789/26381.

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Dissertação (Mestrado em Tecnologia Nuclear)
IPEN/D
Instituto de Pesquisas Energeticas e Nucleares - IPEN-CNEN/SP

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10

Pratama, Filli, of Western Sydney Hawkesbury University, Faculty of Science and Technology, and School of Food Science. "Imparting aromas into raw milled rice: an experimental study." THESIS_FST_SFH_Pratam_F.xml, 2000. http://handle.uws.edu.au:8081/1959.7/478.

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This thesis describes a series of experiments concerned with the production of aromatised rice. The end product showed no visible difference from untreated rice, and the cooked product had a perceivable aroma. The aromatisation process used liquid carbon dioxide as a vehicle to deliver the aroma, and eugenol, isoeugenol, methyl eugenol, cinnamyl alcohol and cinnamaldehyde were used as the principle model aroma components. The aromas penetrated the cores of the rice grains, providing a longer period for the aroma compounds to migrate toward the surface and be lost to the open air. The stability of the injected compounds in aromatised rice was investigated, showing that aroma loss was a first-order process, although some model compounds showed evidence of two binding models, with two distinct phases of aroma loss. The strength of aroma binding to rice was further assessed by means of gas-chromatography columns, and the model aroma compounds interacted best with the rice-flour column. Shelf-life studies demonstrated that eugenol and cinnamaldehyde in aromatised rice showed no significant changes after being stored for 6 months in sealed vacuum aroma-barrier plastic bags, and the aromas could be detected by the human olfactory system after the rice had been cooked by boiling and steaming
Doctor of Philosophy (PhD)

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11

Awg, Hj Tengah Hjh Noorhasifah. "Relevance of composition and localisation of raw rice grains to texture of cooked rice." Thesis, University of Nottingham, 2016. http://eprints.nottingham.ac.uk/33692/.

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Previous research has shown that the sticky behaviour of rice may be affected by the composition and structural properties of the rice starch (amylose and amylopectin) as well as the protein and lipid components. Analyses tend to have been based on whole rice grains even though the sticky texture of rice is largely a surface phenomenon; hence, it is essential to develop an understanding of the external composition of rice grains. The objective of this PhD project is to provide an analysis of the internal and external structure of raw rice grains and to investigate how these structure data correlate to the sticky behaviour of cooked rice. The results of Attenuated Total Reflectance – Fourier Transform Infrared spectroscopy show that there is a significant difference in amide and lipid peaks and order of starch between the centre of rice grains and the external regions while X-Ray Diffraction exhibit differences in starch crystallinity. Results of Fourier Transform Infrared microspectroscopy also demonstrated the non-uniformity of amide and lipid peaks across the cross-section of a rice grain. With the aid of chemical analysis, it was concluded that the sticky texture of cooked rice is negatively correlated to the external protein and lipid amount whereas the correlation to the order of starch and starch crystallinity was positive. This is further confirmed as the removal of protein and lipid from the surface of rice grains resulted in a more adhesive cooked rice texture. This project highlights the importance of a surface study when considering rice stickiness.

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12

O'Donnell, David. "γ-Ray spectroscopy of neutron-rich chlorine nuclei." Thesis, University of the West of Scotland, 2012. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.556205.

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A beam of 36/16S20 at 215 MeV was used to bombard a 300 ugcm-2 thick target of 208/82Pb126 in order to initiate deep-inelastic and multi-nucleon transfer reactions. The I-ray decay of the reaction products was studied using the CLARA array of escape suppressed germanium detectors which was coupled to the large-angular-acceptance magnetic spectrometer PRISMA, in which the velocity, mass, atomic number and kinetic energy of the reaction products was measured. Determination of the velocity and mass has allowed Doppler corrected γ-ray spectra to be obtained for each individual projectile-like nuclide to be produced. Seven neutron-rich isotopes of Cl have been populated and their decay by γ-ray emission has been studied. Decay schemes have been constructed and compared to the results of shell-model calculations. Previously unreported transitions have been observed in 38Cl, 40Cl, 41Cl and 42Cl. ___.

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Yamazaki, Ryo. "Toward the Unified Theory of Long and Short Gamma-Ray Bursts, X-Ray Rich Gamma-Ray Bursts, and X-Ray Flashes." 京都大学 (Kyoto University), 2004. http://hdl.handle.net/2433/147812.

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Cramer, Linsay M. "An Intersectional and Dialectical Analysis and Critique of NBA Commissioner Adam Silver and NFL Commissioner Roger Goodell's Ambivalent Discourses in the New Racism." Bowling Green State University / OhioLINK, 2017. http://rave.ohiolink.edu/etdc/view?acc_num=bgsu1490098866249442.

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15

Van, Veelen Arjen. "Uranium coordination chemistry in Mg-rich systems." Thesis, University of Manchester, 2014. https://www.research.manchester.ac.uk/portal/en/theses/uranium-coordination-chemistry-in-mgrich-systems(707b1576-699c-4f0a-b945-7482cfb7f51f).html.

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In the UK, large quantities of intermediate level waste pose complex radiological remediation challenges. Chemical understanding of uranium in these Mg-rich sludges is vital. Previous studies have examined uranium uptake by calcium carbonate minerals (calcite and aragonite) under conditions pertinent to both natural and anthropogenically perturbed systems. However, research on uranyl uptake by magnesium-rich minerals such as magnesite [MgCO3], brucite [Mg(OH)2], nesquehonite [MgCO3·3H2O] and hydromagnesite-[Mg5(CO3)4(OH)2·4H2O] has not, to the best of our knowledge, been previously conducted. Such experiments will improve our understanding of the mobility of uranium and other actinides in natural lithologies such as dolomitic limestones or mafic igneous emplacements, as well as provide key information applicable to nuclear waste repository strategies involving Mg-rich phases. By two EXAFS techniques, we determined: (1) where uranyl (UO22+) is adsorbed, and (2) how uranyl is attached to the mineral surface. Therefore powder experiments of U(VI) were performed with magnesite, brucite, nesquehonite and hydromagnesite. The second experiment (GIXAFS) consisted of single crystals of magnesite (10.4) and brucite (0001). The powders were reacted in solution pH ~8.5 with U(VI)nitrate for 48 hrs. under ambient PCO2 = -3.5. The single crystals were reacted under ambient and reduced PCO2 ~ -4.5 for 48 hrs. with concentrations of U(VI)chlroride above (500; 50 ppm) and below (5 ppm) solubility of schoepite [UO2(OH)2·H2O]. The GIXAFS measurements were made at χ = 0˚ and χ = 90˚ relative to the synchrotron beam polarisation to uequivocally determine the adsorbate structures. Kd values for Mg-carbonate phases were comparable to or exceeded those published for calcium carbonates. GIXAFS results clearly showed polarisation for both ambient and reduced PCO2. XANES results showed uranyl is oriented with the axial oxygens perpendicular to the mineral surface. This implies, using also X-ray reflectivity and diffuse scatter, local hydrated bayleyite [Mg2(UO2)(CO3)3∙18H2O] and possible rutherfordine-like [UO2CO3] regions, which will be useful to predict uranium behaviour in various remediation processes.

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Pratama, Filli. "Imparting aromas into raw milled rice : an experimental study /." View thesis, 2000. http://library.uws.edu.au/adt-NUWS/public/adt-NUWS20031103.120143/index.html.

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17

Debreczeni, Judit Éva. "X-ray crystallographic studies on two cysteine-rich anticarcinogenic microproteins." [S.l.] : [s.n.], 2004. http://deposit.ddb.de/cgi-bin/dokserv?idn=97260278X.

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Saraci, Mirela P. "Errors in analysis of sulphide rich samples by x-ray fluorescence spectrometry." Thesis, National Library of Canada = Bibliothèque nationale du Canada, 2001. http://www.collectionscanada.ca/obj/s4/f2/dsk3/ftp05/MQ63060.pdf.

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19

Niu, Lijie. "Arsenic Distribution and Speciation in Antigorite-Rich Rocks from Vermont, USA." Thesis, Université d'Ottawa / University of Ottawa, 2011. http://hdl.handle.net/10393/20204.

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Summary Serpentinites from the northern Vermont were examined for the distribution and abundance of As. XRD and electron microprobe showed the samples are composed of antigorite, chromite, magnetite, and carbonate minerals (magnesite, dolomite, calcite). The concentration in As when the samples were dissolved in H3PO4 was 10% of the concentration in As when the samples were dissolved in concentrated HF/HNO3, suggesting that As is mainly incorporated in the structure of antigorite. X-ray absorption near-edge structure spectra showed that the As is As(III) in the samples. Extended X-ray absorption fine structure spectra suggested that the As has a tetrahedral coordination and is located in the Si-site in serpentine.

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20

Perry, Neil Desmond. "The Lower Keys marsh rabbit and silver rice rat: steps toward recovery." Texas A&M University, 2006. http://hdl.handle.net/1969.1/4260.

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Extensive development has destroyed and fragmented wildlife habitat in the Lower Florida Keys. The Lower Keys marsh rabbit (LKMR; Sylvilagus palustris hefneri) and the silver rice rat (SRR; Oryzomys argentatus) are listed by the United States Fish and Wildlife Service (USFWS) and the Florida Fish and Wildlife Conservation Commission (FFWCC) as endangered species. Both species depend on coastal prairies, freshwater marshes, and intertidal salt-marsh zones. The objective of this study was to meet specific, species-level recovery goals and to add reliable information that may modify or support current recovery plans. Specifically, I (1) evaluated the use of LKMR reintroduction to suitable habitat, (2) examined characteristics of habitat used by LKMR, and (3) surveyed the Lower Florida Keys for SRRs, documenting current range and examining survey results for the past decade. I reintroduced 7 rabbits (3 males, 4 females) to suitable habitat on Water Key, and monitored their survival and release-site fidelity. All reintroduced rabbits survived and some reproduced, suggesting these translocation techniques are a viable tool for recovery. On Boca Chica Key, I radio-collared 13 LKMRs and compared vegetation characteristics between core-use and avoided areas within home ranges. Binary logistic regression associated rabbit use with high vegetation heights (7Ã¢ÂÂ8 dm), low canopy coverage (<=10%), high bunchgrass densities (2.5Ã¢ÂÂ3.8/sq m), and forb presence (>5%), supporting the hypothesis that LKMRs may be detrimentally impacted by hardwood encroachment into salt-marsh habitats. For LKMR recovery, I recommend management to resist hardwood encroachment, together with active predator control. I surveyed 36 locations on 18 islands for SRRs, capturing rats on 12 islands, including 2 on which SRRs had not previously been found. Comparisons of my data with historic data suggest SRRs either have increased in abundance over the past decade or that previous trapping efforts were not effective. Abundance of SRRs does not appear to be significantly different from that of populations of rice rats on the mainland. The USFWS and FFWCC should consider revising the conservation status of the SRR; however, it still should be regarded as a unique evolutionary unit with a very limited potential range.

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Gengelbach, Aila. "Collectivity in Neutron-Rich Erbium Isotopes." Licentiate thesis, Uppsala universitet, Kärnfysik, 2021. http://urn.kb.se/resolve?urn=urn:nbn:se:uu:diva-442208.

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Neutron-rich rare-earth nuclei around the maximum of collectivity are predicted to exist with an extremely stable intrinsic configuration in their ground-state structure. Due to the high degree of axial symmetry and large deformation, these nuclei are also excellent candidates for having long-lived high-K isomers. The present work concerns a study of the structure of the yrast bands and a search for isomers in the neutron-rich 68Er isotopes. Excited states of 68Er isotopes were populated via multi-nucleon transfer reactions. A 859 MeV 136Xe-beam was used to bombard a 170Er-target. The experimental setup consisted of the high-resolution γ-ray spectrometer AGATA coupled to the heavy-ion magnetic spectrometer PRISMA. The experiment collected 2 TB of useful data corresponding to 3 days of effective beam time. Beam-like fragments were identified by the PRISMA specrometer placed at the grazing angle of 44 degrees. PRISMA allows for Z, A and q identification as well as TOF and velocity vector determination. This is required for the Doppler correction of the emitted γ rays detected in time coincidence with AGATA. A good Z and very clean A separation has been achieved in PRISMA. Making use of two-body kinematics, Doppler corrected γ-ray spectra for target-like fragments were obtained as well. Due to the novel techniques of PSA and γ-ray tracking, AGATA provided high-quality γ-ray spectra for both beam-like xenon and target-like erbium isotopes. Known yrast bands and isomeric states in neutron-rich erbium isotopes were observed. A candidate for the decay of an isomeric state with Eγ=184 keV in 173Er, which has no previously known excited states, was identified.

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Wang, Zhimin. "γ-ray spectroscopy of neutron-rich silicon and sulphur nuclei using grazing reactions." Thesis, University of the West of Scotland, 2010. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.730021.

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Iafigliola, Rocco. "Beta decay energies and strength function of neutron rich isotopes in the A = 91-100 region." Thesis, McGill University, 1985. http://digitool.Library.McGill.CA:80/R/?func=dbin-jump-full&object_id=70358.

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A solid-state DE-E telescope beta spectrometer has been built and used to study beta-minus spectra. The system consists of a 15 mm x 500 mm$ sp2$ hyperpure germanium (HPGe) E-detector and a 300 $ mu$m x 200 mm$ sp2$ Si DE-detector with a special "keyhole" design.
The response function of the system has been determined experimentally using mono-energetic electron beams with incident energies ranging from 1 to 12 MeV.
The beta endpoint energies of 25 nuclei, namely, $ sp{32}$P, $ sp{88}$Rb, $ sp{91-99}$Rb, $ sp{91-96}$Sr, $ sp{99-100}$Sr, $ sp{92-96}$Y and $ sp{100}$Y have been measured. The Q-beta values and mass excesses for A = 91-100 have been determined. The results for $ sp{99}$Rb, $ sp{99-100}$Sr and $ sp{100}$Y have been obtained for the first time.
The beta strength functions for odd mass Rb isotopes, namely $ sp{91-99}$Rb have been measured for the first time from direct beta spectroscopy with a solid-state telescope system. The experimental results have been compared to calculations using the Brown-Bolsterli (B-B) model.

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Simpson, Ian John. "Crystallographic studies of the sequence selective interactions of ligands within the minor groove of AT-rich DNA." Thesis, Institute of Cancer Research (University Of London), 1999. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.313290.

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Pestehe, Sayyed Jalal. "Spectroscopic studies of X-ray laser media." Thesis, University of York, 2001. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.369284.

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Eubanks, Bryan Wayne. "STATUS AND DISTRIBUTION OF THE STATE-THREATENED MARSH RICE RAT (ORYZOMYS PALUSTRIS) IN ILLINOIS." OpenSIUC, 2010. https://opensiuc.lib.siu.edu/theses/168.

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The marsh rice rat (Oryzomys palustris) is a semi-aquatic rodent classified as state-threatened in Illinois due to historical wetland loss coupled with being on the northern periphery of its range. The most recent survey for this species in Illinois occurred in 1988, and this study reassessed its status and distribution. From 2007 to 2009, I used live traps to sample for rice rats at previously occupied and random wetland-dominated sites in 5 southern Illinois watersheds. I captured 132 individual rice rats 192 times in 13,248 trap nights. Capture success was 15.10 captures/1,000 trap nights. I detected rice rats within 3 of 5 watersheds, 16 of 48 sites, and 5 new locations. Most rice rats were captured in permanent or semi-permanent emergent wetlands and rice rat occurrence was strongly related with coal mine-associated wetlands. I collected microhabitat measurements at 10% of trap locations and recorded landcover types within and around sites. I analyzed data using t-tests, logistic regression, and occupancy modeling. Percent herbaceous cover and percent visual obstruction (0.0-0.5m) positively influenced rice rat occurrence and were among the most important microhabitat models. The best model in the candidate set of landcover variables included proportion of upland grass in areas surrounding wetlands as a predictor of rice rat occurrence. I believe insufficient evidence exists to warrant removal of the threatened status of the marsh rice rat. However, current management practices, such as wetland restoration, grassland restoration, and mowing of roadside ditches, likely benefit rice rat populations. Slight modification of these management activities may facilitate the eventual delisting of marsh rice rats.

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Logue, Daniel B. "A Single Continuous Function as a Model for Fast Rise Exponential Decay Gamma-Ray Bursts." MSSTATE, 2006. http://sun.library.msstate.edu/ETD-db/theses/available/etd-09172006-103058/.

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A quantitative analysis was performed on a sample of Fast-Rise Exponential-Decay gamma-ray bursts using a continuous fitting function. The data were obtained from the Large Area detector catalogue of the Burst and Transient Source Experiment, which flew from 1991-2000 onboard the Compton Gamma-Ray Observatory. The purpose here is to tabulate from the fits quantities associated with gamma-ray bursts, emphasising peak intensity, duration, and characteristic rates of rising and falling. V/Vmax and duration analyses show that the sample of bursts is representative of the larger population of gamma-ray bursts. A modified asymmetric double sigmoidal was found to fit the background subtracted peaks for the majority of bursts. From the regressions the amplitude, duration and rising and falling characteristic times are defined for each burst, as well as a value describing the asymmetry of the peak. These values are compared with each other and with catalogued values of duration and V/Vmax.

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28

Al-Dahan, Nawras M. S. "Isomer and (beta)-delayed gamma-ray spectroscopy for structure studies of heavy, neutron-rich nuclei." Thesis, University of Surrey, 2010. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.520560.

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29

Wang, Diandian. "Ex situ X-Ray absorption study of Li-rich layered cathode material Li[Li0.2Mn0.56Ni0.16Co0.08]O2." Master's thesis, Alma Mater Studiorum - Università di Bologna, 2013. http://amslaurea.unibo.it/5773/.

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The Li-rich layered transition metal oxides (LLOs) Li2MnO3-LiMO2 (M=Mn, Co, Ni, etc.) have drawn considerable attention as cathode materials for rechargeable lithium batteries. They generate large reversible capacities but the fundamental reaction mechanism and structural perturbations during cycling remain controversial. In the present thesis, ex situ X-ray absorption spectroscopy (XAS) measurements were performed on Li[Li0.2Mn0.56Ni0.16Co0.08]O2 at different stage of charge during electrochemical oxidation/reduction. K-edge spectra of Co, Mn and Ni were recorded through a voltage range of 3.7-4.8V vs. Li/Li+, which consist of X-ray absorption near edge structure (XANES) and extended X-ray absorption fine structure (EXAFS). Oxidation states during initial charge were discussed based on values from literature as well as XANES analysis. Information about bond distance, coordination number as well as corresponding Debye-Waller factor were extracted from Gnxas analysis of raw data in the EXAFS region. The possibility of oxygen participation in the initial charge was discussed. Co and Ni prove to take part in the oxidation/reduction process while Mn remain in the tetravalent state. The cathode material appears to retain good structural short-range order during charge-discharge. A resemblance of the pristine sample and sample 4 was discovered which was firstly reported for similar compounds.

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Venter, Neil Grant. "Uso de plasma rico em plaquetas em queimaduras Modelo experimental em ratos." Universidade do Estado do Rio de Janeiro, 2014. http://www.bdtd.uerj.br/tde_busca/arquivo.php?codArquivo=9390.

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As queimaduras são eventos comuns e recorrentes no dia a dia dos atendimentos médicos. Há uma constante busca para entender a sua fisiopatologia, no intuito de minimizar seus resultados devastadores. Plasma rico em plaquetas (PRP) é um concentrado de plaquetas com capacidade de liberação local de múltiplos fatores de crescimento (FC) que aceleram a cicatrização. Este estudo consiste em dois experimentos: o primeiro visa validar um modelo experimental para a criação de queimaduras de tamanho e profundidade padronizados e, o segundo, avalia o uso de PRP em queimaduras. Para o desenvolvimento de queimaduras na validação do modelo experimental, foi idealizado um equipamento que permitisse o controle preciso da temperatura, além da utilização em conjunto de uma técnica inovadora de fixação que garante pressão constante no momento das queimaduras. Para o primeiro experimento, foram utilizados 12 ratos, por grupo, submetidos a queimaduras de 60 oC, 70 oC ou 80 oC por dez segundos, com um equipamento que desenvolvemos. Metade dos animais de cada grupo foi morta no terceiro dia e suas feridas foram analisadas por histologia, e, na outra metade, a ferida foi mensurada e acompanhada até o seu fechamento. No uso de PRP em queimaduras, foram avaliadas queimaduras de segundo grau (SG), segundo grau com diabetes mellitus induzido (SGD) e queimaduras de terceiro grau (TG). Noventa animais foram distribuídos em três grupos (SG, SGD e TG), onde, em cada um, dez animais foram tratados, dez serviram de controle e dez foram utilizados para o preparo do PRP. As áreas das feridas foram acompanhadas até o vigésimo primeiro dia, quando os animais foram mortos e biópsias de pele foram realizadas. Os resultados da validação do modelo mostram que as queimaduras produzidas com 60 oC foram de SG superficial (28% da derme envolvida); com 70 oC foram de SG profundo (72% da derme envolvida); e com 80 oC foram de TG (100% da derme envolvida). Em relação ao uso de PRP em queimaduras, observou-se que nos grupos tratados SG e SGD houve aceleração do fechamento da ferida e redução no número de células CD31, CD163, CD68, MPO e TGF-β positivas, e aumento do número de células MMP2 positivas. A neoepiderme foi mais fina nos controles dos grupos SG e SGD, e o tecido de granulação foi reduzido nos controles SGD e TG. O modelo utilizado é seguro e confiável para produzir queimaduras regulares e uniformes, de diâmetros variados, pela capacidade do controle fino da temperatura e pelo posicionamento do animal, e reprodutíveis. PRP parece acelerar a cicatrização de queimaduras de SG e SGD, mas não de TG.
Burns are common and recurring events in the daily lives of medical care. There is a constant search to understand itsphysiopathology, in order to minimize its devastating results. Platelet-rich plasma (PRP) is a platelet concentrate with capacity of local release of multiple growth factors (FC) that accelerate healing. This study consists in two experiments: the first to validate an experimental model for the creation of standardized burns in size and depth and the second to evaluate the use of PRP in burns. The burns were achieved in an experimental burn model using an equipment that we developed and allows precise temperature control and in association with a innovative fixation technique that creates a constant pressure. Twelve rats per group underwent burns at 60oC, 70oC or 80oC for 10 seconds, with a device that we developed. Half of the animals of each group was killed on the third day and their wounds were analyzed by histology, and in the other half the wounds were measured and monitored until their closure. In the use of PRP in burns, second degree burns (SD), second degree burns with induced diabetes mellitus (SDD) and third degree burns (TD) were evaluated. Ninety animals were divided into three groups (SD, SDD, and TD) and in each one10 animals were treated, 10 animals served as controls, and 10 animals were used for PRP preparation. The wound areas were accompanied until the twenty-first day, when the animals were killed and skin biopsies were obtained. The results of the validation of the model show that the burns derived from 60oC were of superficial SD (28% of the dermis involved); for 70 C they were deep SD (72% of the dermis involved); and for 80oC they were TD (100% of the dermis involved). Regarding the use of PRP in burns, it was observed that in the SD and SDD treated groups the wound closure was accelerated and there was reduction in the number of CD31, CD163, CD68, MPO, and TGF-β positive cells, and increasing of the number of MMP2 positive cells. The neoepidermis was thinner in control of both SD and SDD groups, and the granulation tissue was reduced in both control SDD and TD. The model used is safe and reliable to produce regular and uniform burns of varying diameters, by its ability of the fine control of temperature, by the animal positioning, and by its reproducibility. PRP appears to accelerate the healing of burns of SD and SDD, but not TD.

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Indorf, Jane Leah. "Phylogeography of the Marsh Rice Rat (Oryzomys palustris) in Wetlands of the Southeastern United States." Scholarly Repository, 2010. http://scholarlyrepository.miami.edu/oa_dissertations/462.

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The marsh rice rat (Oryzomys palustris) is a semi-aquatic rodent endemic to the southeastern United States. Unlike most terrestrial small mammals, the marsh rice rat can easily disperse over water and has a close association with wetlands. These specialized traits have likely greatly shaped the genetic structure and diversity within this species. I studied genetic patterns within the marsh rice rat to understand how this species' specialized ecology, as well as the geologic and climatic history of the southeastern United States, affected the genetic structuring within this species. The phylogeography of many species in the southeastern United States has been studied and concordant geographic patterns of genetic variation exist among many of these species. Researchers have hypothesized that the biogeography of the southeastern United States has been influenced by the Pleistocene glacial cycles, producing similar genetic patterns within unrelated species. I first examined genetic patterns within the marsh rice rat at the macro scale of phylogenetics. This nominal species actually represents two cryptic species; populations in the eastern and western regions of its range are genetically divergent. I also identified three subspecies, in contrast to the six morphological subspecies historically recognized. The silver rice rat in the Lower Florida Keys and the Sanibel Island rice rat from Sanibel Island Florida are both subspecific taxa. Only one mainland marsh rice rat subspecies exists. I then studied the phylogeographic patterns within the marsh rice rat and determined that geographic patterns of genetic variation in this species are not concordant with the phylogeographic patterns uncovered in most other species of the southeastern United States. The genetic structuring within the marsh rice rat has been influenced not only by the geologic and climatic history of this region, but also by the species' semi-aquatic adaptation. I also studied genetic patterns at a micro scale by estimating present levels of gene flow and genetic diversity within populations. Gene flow is a contemporary factor in maintaining levels of genetic diversity within populations of the marsh rice rat. From the macro scale of phylogenetics to the micro scale of population genetics, the genetic structure of the marsh rice rat has been shaped by past climatic history and by this species' specialized ecology.

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32

Söderström, Pär-Anders. "Collective Structure of Neutron-Rich Rare-Earth Nuclei and Development of Instrumentation for Gamma-Ray Spectroscopy." Doctoral thesis, Uppsala universitet, Kärnfysik, 2011. http://urn.kb.se/resolve?urn=urn:nbn:se:uu:diva-149772.

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Neutron-rich rare-earth nuclei are among the most collective nuclei that can be found in nature. In particular, the doubly mid-shell nucleus 170Dy is expected to be the nucleus where the collective structure is maximized. This has implications for the astrophysical r-process, since it has been suggested that the collectivity maximum plays an important role in the abundances of the rare-earth elements that are created in supernova explosions. In this work, the collective structure of the five nuclei 168,170Dy and 167,168,169Ho are studied and different theoretical models are used to interpret the evolution of collectivity around the mid-shell. In order to produce and study even more neutron-rich nuclei in this mass region, new radioactive ion beam facilities will be a valuable tool. These facilities, however, require advanced instruments to study the weak signals of exotic nuclei in a high background environment. Two of these instruments are the γ-ray tracking spectrometer AGATA and the neutron detector array NEDA. For AGATA to work satisfactorily, the interaction position of the gamma rays must be determined with an accuracy of at least five millimetres. The position resolution is measured in this work using a model independent method based on the Doppler correction capabilities of the detector at two different distances between the detector and the source. For NEDA, one of the critical parameters is its ability to discriminate between neutrons and γ rays. By using digital electronics it is possible to employ advanced and efficient algorithms for pulse-shape discrimination. In this work, digital versions of the common analogue methods are shownto give as good, or better, results compared to the ones obtained using analogue electronics. Another method which effectively distinguishes between neutrons and γ rays is based on artificial neural networks. This method is also investigated in this work and is shown to yield even better results.

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33

Cooney, Scott Andrew. "Landscape Permeability and Home Range Composition of the Marsh Rice Rat (Oryzomys palustris) in Southern Illinois." OpenSIUC, 2013. https://opensiuc.lib.siu.edu/theses/1093.

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The permeability of surrounding landcover types can influence the probability of animals leaving a patch and dispersing across the unsuitable matrix. The marsh rice rat (Oryzomys palustris) persists in wetlands that are often isolated by upland cover types. The goal was to quantify the permeability of three landcover types (grassland, agriculture, and forest) and calculate the landcover composition of home ranges for a population of rice rats in southern Illinois. Between March 2011 and January 2012, I trapped rice rats up to 95 m from wetlands into unsuitable cover and simultaneously followed individuals via radiotelemetry. I calculated the slope of capture rate (log-transformed) vs. distance from wetland as an inverse measure of permeability and also measured inundation, rice rat abundance, and matrix vegetation density as potential covariates explaining matrix use. I calculated mean home range size for males with the fixed kernel density method and compared landcover within home ranges to what was available in the surrounding landscape. Using generalized linear mixed models, I compared matrix capture rates and permeability levels among cover types, inundation, abundance, and vegetation density. After 13,610 trap-nights, I captured 43 rice rats in the matrix between March and September, with 24 in agriculture, 10 in grassland, and 9 in forest. I did not find permeability differed between landcover types, but did find that rice rats were captured further and more frequently in agriculture than grassland and forest cover. Both population abundance in wetlands and vegetation density < 0.5 m high had positive effects on matrix captures, while lowering water levels increased the permeability of the surrounding matrix. After radio-tracking 25 rice rats, home ranges were 3.01 ±0.57 ha and were the largest for individuals followed in early summer. Emergent vegetation was used proportionally more than would have been expected at random, indicating rice rats preferred emergent wetlands habitat at the home-range level. This study suggests that rice rats are more vagile and move through upland cover types more frequently than previously described in the literature.

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34

Browne, Frank. "Deformed structures in neutron-rich A ≈ 100 nuclei studied by isomer and ß- delayed γ-ray spectroscopy." Thesis, University of Brighton, 2016. https://research.brighton.ac.uk/en/studentTheses/fc8d1987-8244-4320-8673-a1973c508f95.

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Neutron-rich A∼110 nuclei have been the subject of intensive discussion since the discovery of a rapid onset of ground-state static quadrupole deformation in the A > 100 Zr nuclei over 60 years ago. The results presented in this thesis further the experimental knowledge of such deformations towards more exotic isotopes in this region. An experiment was carried out at the Radioactive Isotope Beam Factory, RIKEN, Wako-shi, Japan. Nuclei of interest were produced through the in-flight abrasion fission of a 345 MeV/nucleon 238U beam by a 555 mg/cm2 9Be target and selected by the BigRIPS spectrometer according to their mass-to-charge ratio and atomic charge. They were implanted into the WAS3ABi silicon stack and γ rays emitted following β-decay, or decay of isomeric states were detected in an array of 12 cluster HPGe (EURICA) and 18 LaBr3(Ce) detectors. A newly implemented fast β-γ timing configuration provided access to the lifetimes of excited states in the nanosecond regime. In particular, the lifetime of the 2+ state of 106Zr is reported for the first time, as well as a more precise measurement for 104Zr, compared to the adopted value. These measurements, combined with the energy of the ground-state transition, have been used to deduce the reduced transition probability and from this a model-dependent value for the ground-state deformation. New isomeric states have also been observed in 102Zr, 113Nb and 115Mo. The reduced transition probability of the 2+ + g.s transition in 106Zr shows a marked decrease from that of 104Zr. This reflects the energy systematics, and further confirms the deformed sub-shell closure at N=64. Comparisons of the systematics of the observed reduced transition probabilities to those calculated in the IBM-1 model show poor agreement. However, calculations based on the nuclear-shell model in a deformed basis state, show good agreement with observation, demonstrating the reliability of the employed ground-state wavefunction. The isomeric state in 102Zr is ascribed to a change in the K quantum number, and the isomeric states in 113Nb and 115Mo are proposed to be due to shape stabilisation of excited states.

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35

Ma, Lin. "Multi-scale 3D imaging of the microstructure in organic-rich shales." Thesis, University of Manchester, 2016. https://www.research.manchester.ac.uk/portal/en/theses/multiscale-3d-imaging-of-the-microstructure-in-organicrich-shales(514544f2-39f8-4fe2-b8f4-fecb27380c10).html.

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Technological advances in horizontal drilling and hydraulic fracturing have paved the way for the exploration and production of shale gas and shale oil, the fastest growing energy sector globally. The imaging and quantification of the geometry, sizes, network and distribution of extremely fine-grain minerals, organic matter and pores are a significant component for the macroscopic and microscopic characterisation of shale reservoirs but is also highly challenging. X-ray computed tomography (XCT) combined with 3D Electron Microscopy (EM) are used to address this challenge and give us information in 3D from multiple length scales over 3 orders of magnitudes: mesoscale (R1), microscale (R2), submicron-scale (R3), low-resolution nanoscale (R4) and high-resolution nanoscale (R5) with spatial resolutions of ~10micro metre, ~1micro metre, ~130 nm, ~50nm and ~5nm, respectively. The multi-scale imaging and quantification method was initially applied here to the Carboniferous Bowland Shale, the largest potential shale gas play in the UK. The appropriate length scales (both field of view and voxel size) of specified phases such as pores, organic matter, clay minerals and non-clay minerals were analysed. The low connectivity of pores and high connectivity of organic matter suggests that the 20 nm and larger pores imaged did not form connected flow paths, demonstrating that porous gas flow through this sample cannot be the main transport mechanism and diffusive transport through the organic matter and clay minerals must also be considered. Then, the variation of organic matter and pore distribution along a TOC gradient were analysis on Lublin gas-mature shale samples in Poland and Baltic oil-mature shale samples in Lithuania. The results show intergranular pores dominated in this series of samples, including organic interface pores and inter-mineral pores, which further confirm that organic matter is not the primary influencing factor for porosity, but the clay minerals. Finally, a novel multi-stage workflow of pore system is proposed relying on both image quantification and numerical modelling of geological features with studies in Jurassic Haynesville shale in the US. Three stages are divided according to pore variation, mineral variation and microfacies variation across four distinct length scales (R1-R4/R5), and permeability was simulated based on the upscaled pore system. The final computed porosity and permeability shows acceptable errors when compared with the helium porosity and press decay permeability. Beyond the lab measurements, the pore occurrence and size distribution were computed in the upscaling process. The combining of XCT and 3D-EM provides a powerful tool for the multi-scale imaging and quantification of microstructural information in shales, allowing the visualization of pores, organic matter and inorganic mineral phases over a range of scales over three orders of magnitude (~ 10 micro metre to ~ 5 nm), and the volume fraction of each phases shows a reasonable correlation to traditional physical and chemistry quantification data. The further studies, such as the variation of organic matter and pores, upscaling of porosity and permeability presented in this study, has verified the feasibility of the proposed multi-scale method and promises a bit potential for reservoir prediction and other challenges in geological studies.

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36

van, der Merwe Jorista. "Ecology of the marsh rice rat (Oryzomys palustris) in southern Illinois: wetland dynamics, metapopulations, and trophic position." OpenSIUC, 2014. https://opensiuc.lib.siu.edu/dissertations/974.

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Wetlands occurring on natural river floodplains typically have more dynamic hydrology, because of influences from the river, than man-made wetlands or those associated with reclaimed minelands. For wetland-associated species, fluctuating water levels can affect patch availability, connectivity and potentially habitat quality, and therefore drive metapopulation dynamics. Differences in hydrology between wetland complexes could change food webs and consequently the trophic diversity of the communities occupying these areas. My first objective was to assess the spatial and temporal variation in occupancy and turnover rates of a semi-aquatic small mammal at 2 hydrologically distinct wetland complexes over 3 years in southern Illinois. My second objective was to determine spatio-temporal variation in the trophic structure of small mammals at 2 wetland complexes (floodplain and mineland) in southern Illinois. To address my first objective, I live-trapped marsh rice rats (Oryzomys palustris) during 2011-2013 at 9 wetland patches on the Mississippi River floodplain and 14 patches at a reclaimed mineland. I used multi-season occupancy modeling to estimate initial occupancy, detection, colonization and extinction rates. Catch per unit effort differed markedly between the 2 sites (27 captures/1,000 trap-nights at the floodplain site vs. 8 at the mining site). Estimates of detection probability increased with an increase in effort (number of traps per night per wetland patch). Occupancy probability was similar between sites and positively related to patch size. Patch colonization probability at both sites was related negatively to total rainfall 3 weeks prior to trapping. In addition, the variation in colonization probability among years, was different between sites, with colonization in 2013 being much lower at the mining site than at the floodplain. An increase in total rainfall 3 months prior to trapping led to a substantial increase in extinction probability on the floodplain, but not at the mining site. Differences in metapopulation dynamics and relative abundance between the 2 sites can be attributed to differences in hydrology and habitat quality. Although rice rats were present at the mining site in much lower numbers than at the floodplain site, these less-natural wetland complexes might serve as valuable refuges for species occurring in increasingly fragmented landscapes. For my second objective, I collected hair samples from 6 species of small mammals (n = 416) occurring at these wetland complexes. I analyzed C and N stable isotopes for 3 mammal taxa (Oryzomys palustris, Peromyscus spp,, Microtus ochragaster) to compare diet between species, sites, and, times. Food sources (vegetation and invertebrates) were collected at each site to form the isotopic baseline. Using stable isotope mixing models, I found no seasonal difference in diet composition, but signatures varied between sites. Oryzomys palustris at both wetland complexes incorporated primarily (70-80%) invertebrates in their diet, and used more C4 vegetation (30%) than C3 (0%). Isotope signatures of Peromyscus diets at the floodplain site were similar to that of Oryzomys, with ~80% invertebrates and >C4 vegetation than C3 vegetation (~20% and 0%, respectively). At the mining site, Peromyscus were at a much lower trophic level and consumed 70% vegetation with C3 plants making up a greater part of their diet than C4 vegetation (50% and 20%, respectively). Microtus was at a lower trophic position than the other 2 species at both sites. These isotope results point to reduced niche overlap between Oryzomys and Peromyscus at the mining site, perhaps due to lower habitat quality and limited suitable resources. Although small mammals had narrower diet breadths at the mining site, none of the species was at a higher trophic position at the mining site than at the floodplain site. At the floodplain site, the more dynamic hydrology might have given rise to higher biodiversity and consequently provided more resources to allow small mammals to use similar food items.

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37

Liew, H. J. "Short range order and phase separation in Ti-rich Ti-Al alloys." Thesis, University of Oxford, 1999. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.300793.

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38

Cheung, Carmen K. M. "Regulation of proliferation-associated leucine-rich protein 31 in the rat ovary." Thesis, University of Ottawa (Canada), 2005. http://hdl.handle.net/10393/26873.

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In neuronal and placental cells, proliferation-associated leucine-rich protein 31 is an anti-apoptotic, cell cycle-related protein in its intact form, and upon cleavage by caspase-3, is pro-apoptotic. However, whether PAL31 is expressed in the follicle and is modulated during follicular development and atresia is not known. The expression and regulation of ovarian PAL31 were investigated using immature rat models and a granulosa cell culture system. PAL31 was ubiquitously expressed in all follicular cell types. eCG caused a significant decrease in granulosa cell PAL31 protein content during granulosa cell differentiation and late stage follicle growth. Gonadotropin withdrawal prevented an increase in ovarian weight after eCG treatment, but failed to induce granulosa cell apoptosis and PAL31 cleavage. Finally, estradiol stimulated PAL31 expression in the granulosa cells of preantral and early antral follicles. These results demonstrate for the first time that PAL31 is regulated by key reproductive hormones during follicular development in vivo.

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39

Tristiani, Harsiwi. "Population characteristics of the ricefield rat,Rattus argentiventer, with special reference to its adaptation to the rice plant." 京都大学 (Kyoto University), 1999. http://hdl.handle.net/2433/181989.

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40

Desai, Naeem. "Tensor tomography." Thesis, University of Manchester, 2018. https://www.research.manchester.ac.uk/portal/en/theses/tensor-tomography(9df5f611-ef5f-4b20-b8e4-7aa42de5a4e1).html.

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Rich tomography is becoming increasingly popular since we have seen a substantial increase in computational power and storage. Instead of measuring one scalar for each ray, multiple measurements are needed per ray for various imaging modalities. This advancement has allowed the design of experiments and equipment which facilitate a broad spectrum of applications. We present new reconstruction results and methods for several imaging modalities including x-ray diffraction strain tomography, Photoelastic tomography and Polarimet- ric Neutron Magnetic Field Tomography (PNMFT). We begin with a survey of the Radon and x-ray transforms discussing several procedures for inversion. Furthermore we highlight the Singular Value Decomposition (SVD) of the Radon transform and consider some stability results for reconstruction in Sobolev spaces. We then move onto define the Non-Abelian Ray Transform (NART), Longitudinal Ray Transform (LRT), Transverse Ray Transform (TRT) and the Truncated Trans- verse Ray Transform (TTRT) where we highlight some results on the complete inver- sion procedure, SVD and mention stability results in Sobolev spaces. Thereafter we derive some relations between these transforms. Next we discuss the imaging modali- ties in mind and relate the transforms to their specific inverse problems, primarily being linear. Specifically, NART arises in the formulation of PNMFT where we want to im- age magnetic structures within magnetic materials with the use of polarized neutrons. After some initial numerical studies we extend the known Radon inversion presented by experimentalists, reconstructing fairly weak magnetic fields, to reconstruct PNMFT data up to phase wrapping. We can recover the strain field tomographically for a polycrystalline material using diffraction data and deduce that a certain moment of that data corresponds to the TRT. Quite naturally the whole strain tensor can be reconstructed from diffraction data measured using rotations about six axes. We develop an innovative explicit plane-by-plane filtered back-projection reconstruction algorithm for the TRT, using data from rotations about three orthogonal axes and state the reasoning why two- axis data is insufficient. For the first time we give the first published results of TRT reconstruction. To complete our discussion we present Photoelastic tomography which relates to the TTRT and implement the algorithm discussing the difficulties that arise in reconstructing data. Ultimately we return to PNMFT highlighting the nonlinear inverse problem due to phase wrapping. We propose an iterative reconstruction algorithm, namely the Modified Newton Kantarovich method (MNK) where we keep the Jacobian (FreÌchet derivative) fixed at the first step. However, this is shown to fail for large angles suggesting to develop the Newton Kantarovich (NK) method where we update the Jacobian at each step of the iteration process.

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41

Naqvi, Farheen [Verfasser], Jan [Akademischer Betreuer] Jolie, and Peter [Akademischer Betreuer] Reiter. "Probing the collectivity in neutron-rich Cd isotopes via gamma-ray spectroscopy / Farheen Naqvi. Gutachter: Jan Jolie ; Peter Reiter." Köln : Universitäts- und Stadtbibliothek Köln, 2011. http://d-nb.info/1038016290/34.

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42

Crouse, Amanda Louise. "Genetic analysis of the endangered silver rice rat (Oryzomys palustris natator) and Lower Keys marsh rabbit (Sylvilagus palustris hefneri)." Texas A&M University, 2005. http://hdl.handle.net/1969.1/4822.

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Genetic analyses of two endangered species of mammals in the Lower Keys of Florida (Lower Keys marsh rabbit, LKMR, Sylvilagus palustris hefneri; silver rice rat, SRR, Oryzomys palustris natator) were performed to evaluate the genetic structure of their populations. Mitochondrial sequence data (control region; 763 base pairs (bp), LKMR; 788 bp, SRR) were used to explore patterns of genetic variation within and among island populations in both species. Analysis of the SRR also included 8 polymorphic nuclear microsatellite loci (9 to 16 alleles). Phylogenetic analyses of mitochondrial sequence data for both species revealed two main lineages corresponding to eastern and western localities, with high levels of genetic structuring (LKMR FST = 0.982, SRR ÃÂ¦ST = 0.916). The two species differed in the level of sequence divergence between eastern and western populations (LKMR, 19 bp; SRR 4 bp). In addition to an overall similar pattern of genetic subdivision, populations of both species possessed low levels of mtDNA variation (haplotypic diversity in the LKMR = 66.1%, SRR = 58.6%). Microsatellite analyses of the SRR revealed subdivision between eastern and western regions. Although less pronounced than the structure observed in mtDNA, the overall pattern was still apparent. Additional examination of divergence between mainland and Lower Keys rice rats revealed a genetic division that indicated a lack of recent gene exchange between the regions (i.e. no shared haplotypes, the presence of private alleles, and distinctive separation in numerous analyses). Although this degree of division does not warrant species designation, the levels and patterns of divergence, both morphological and genetic, do suggest genetic isolation of mainland and island forms. This fact, along with restricted gene flow between the Lower Keys and the Everglades, suggests that the SRR is on an evolutionary trajectory separate from its mainland counterparts and validates its identification as a separate subspecies, Oryzomys palustris natator. Finally, the genetic division between eastern and western populations of the SRR and LKMR suggests that populations of both species in these two regions of the Lower Keys should be treated as separate management units, especially when considering the enhancement of populations via translocations.

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43

Mocchiutti, Emiliano. "Atmospheric and Interstellar Cosmic Rays Measured With the CAPRICE98 Experiment." Doctoral thesis, KTH, Physics, 2003. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-3643.

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44

Novais, Mayara Michele Santos de. "Os bens maiores: mem?ria e melancolia na l?rica de Ruy Espinheira Filho." Universidade Estadual de Feira de Santana, 2012. http://localhost:8080/tede/handle/tede/345.

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This study aimed to analyze the present memory and melancholy ipresent in some poems byn Ruy Espinheira Filho, taken from books Poesia Reunida e In?ditos (1998), Elegia de Agosto e outros poemas (2005), Sob o c?u de Samarcanda (2009), Livro de can??es e in?ditos (2011) e Viagem e outros poemas (2011). The choice of these works was due to the fact that they have almost all the poems published by the author to the present year of the dissertation. The methodology used was analysis of form and content of some poems in order to realize that despite the common sense to believe in nostalgia mode memory idea, the poems of the Bahian poet analyzed go the opposite way to that vision, revealing the pain that the past still dating, and even specific bibliographic research about the related topics in this thesis, in this case, memory and melancholy in the work of Ruy Espinheira Filho and poetry, especially contemporary. The lyrical I do not want to relive the past tense, but recognizes that their identity is formed from their experiences. We know that the past is never returned or revived in the present as it was, but the memory can be recovered, albeit selectively, forgetting and / or adding elements a time that no longer remains. The lyrical poems in the analyzed reveals a human frailty, has the death as the only sure, but not to have a past and settled back to him through the memories, even if for this need to suffer again. He feels stuck in the past, for this be your life or unresolved issues, which are still present. In reflecting on the losses obtained in time, the lyrical subject feels self-absorbed, becoming a being melancholy and therefore memoirist.
O presente estudo tem por objetivo analisar a mem?ria e melancolia presente em alguns poemas de Ruy Espinheira Filho, retirados dos livros Poesia reunida e in?ditos (1998), Elegia de Agosto e outros poemas (2005), Sob o c?u de Samarcanda (2009), Livro de can??es e in?ditos (2011) e Viagem e outros poemas (2011). A escolha dessas obras se deu pelo fato de representarem praticamente todos os poemas publicados pelo autor at? o presente ano da defesa da disserta??o. A metodologia utilizada foi an?lise de forma e conte?do de alguns poemas, a fim de perceber que apesar de o senso comum acreditar na ideia de mem?ria de modo saudosista, os poemas do poeta baiano analisados v?o no caminho oposto a essa vis?o, revelando as dores que o passado ainda remonta, e ainda pesquisa de bibliogr?fica espec?fica acerca dos temas relacionados nessa disserta??o, no caso, a mem?ria e a melancolia na obra de Ruy Espinheira Filho bem como na poesia, em especial a contempor?nea. O eu l?rico n?o deseja reviver o tempo pret?rito, mas reconhece que sua identidade se constitui a partir de suas viv?ncias. Sabemos que o passado nunca ? devolvido ou revivido no presente tal como foi, mas pela mem?ria ? poss?vel resgatar, ainda que de forma seletiva, esquecendo e/ou acrescentando elementos um tempo que n?o mais permanece. O eu l?rico nos poemas analisados revela uma fragilidade humana, tem a morte como ?nica certeza, mas por n?o ter um passado bem solucionado volta a ele, por meio das recorda??es, ainda que para isso necessite sofrer novamente. Ele se sente preso ao passado, por este constituir sua vida ou por quest?es mal resolvidas e que continuam presentes. Ao refletir sobre as perdas obtidas com o tempo, o sujeito l?rico se sente ensimesmado, tornando-se um ser melanc?lico e, portanto, memorialista.
Funda??o de Amparo ? Pesquisa do Estado da Bahia - FAPESB

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45

Armstrong, Elizabeth Freda. "Effects of wheat bran and pectin rich diets on colonic metabolism in the rat." Thesis, University of Edinburgh, 1989. http://hdl.handle.net/1842/23684.

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46

Häggbom, Fredrik, and Haglund Erik Olsson. "Scrumptious:A Scrum Planning Tool Case Study to Evaluate the Rich Ajax Platform." Thesis, Karlstad University, Faculty of Economic Sciences, Communication and IT, 2009. http://urn.kb.se/resolve?urn=urn:nbn:se:kau:diva-4156.

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During the last year Tieto has been interested in evaluating the potential of a newly developed technology called Rich Ajax Platform (RAP). The RAP technology allows the developer to write Java code and deploy it on the web as a Rich Internet Application (RIA)with similar look and feel as a regular application ran in for example Microsoft Windows. The biggest benefit with a RIA is that it offers similar features to stand-alone applications but these features are deployed via a web server i.e. no installation at the client side is needed.

To evaluate this technique a Scrum handler prototype was developed using the RAP. Secondly, a comparison with another similar technique called Google Web Toolkit had been made. The Scrum process is an agile development method which is based on small iterations.The purpose of this study was to create a functional prototype in order to evaluate and demonstrate the RAP technology.

The result of the evaluation is that RAP is a strong competitor for developing Web 2.0 applications. Most of the concerns regarding RAP depend on the fact that it is a new technology and is still under development. Since Tieto in Karlstad currently develops RCPapplications, the RAP technology is a logical successor since the developers do not have to learn a new technology.

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Brewton, Asani. "Development of a Borehole Log Signature for Oceanic Anoxic Events and Its Application to the Gulf of Mexico." ScholarWorks@UNO, 2008. http://scholarworks.uno.edu/td/866.

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Oceanic anoxic events (OAEs) are periods in Earth's history when oceans were depleted in dissolved oxygen and characterized by deposition of organic-rich sediments. The Oceanic Drilling Program (ODP) has drilled through OAEs in a number of areas worldwide, collecting core and borehole log data. This project attempts to identify a characteristic signature from known ODP OAE sections using these data and to apply the signature to identify OAE intervals in Gulf of Mexico wells where cores are lacking. Additionally, pseudo density curves were generated from ODP logs and compared to bulk density logs to determine if the deviation between the two would aid identification of OAE intervals. A general, though not fool proof, signature of high gamma ray, uranium, neutron porosity and low density was seen in nearly all of the ODP holes. Using this signature 20 potential OAE intervals were identified in the Gulf of Mexico.

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48

Gandhi, Payal. "Characterization of the Parkinson's Disease Associated Protein, Leucine-Rich Repeat Kinase 2 (LRRK2), as a Ras-Related GTPase." Case Western Reserve University School of Graduate Studies / OhioLINK, 2008. http://rave.ohiolink.edu/etdc/view?acc_num=case1195574448.

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Ouguerram, Khadija. "Étude du métabolisme du cholestérol des lipoprotéines plasmatiques chez le rat normal et génétiquement hypercholestérolémique (RICO)." Paris 11, 1989. http://www.theses.fr/1989PA112134.

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Chez le rat génétiquement hypercholestérolémique (RICO), la forte augmentation du cholestérol plasmatique est liée principalement à celle des LDL et des HDL2. L'étude du système cholestérol a été entreprise après injection intraveineuse de cholestérol tritié, par application du principe d’occupation et analyse compartimentale. Ce système est caractérisé par une augmentation des entrées du cholestérol associée à une augmentation secondaire des sorties. Un plus faible mouvement du cholestérol du plasma vers les organes est également noté. Le renouvellement du cholestérol de chaque classe de lipoprotéines a été ainsi étudié chez le rat RICO et son témoin normocholestérolémique. L'utilisation d’analogues non dégradables dans la cellule (14C-Saccharose, 14C-Cholestéryl-linoléyl-éther) a permis la détermination des sites de captation des LDL et des HDL. Les principaux résultats de ce travail sont les suivants : -Une baisse du taux de catabolisme du cholestérol estérifié des chylomicrons, liée à une perturbation de la lipoprotéine. Une transformation des VLDL en LDL plus élevée chez le rat RICO. Une augmentation de la production des LDL liée à une baisse de leur taux de catabolisme. Ce dernier est associé en partie à une perturbation de la lipoprotéine accompagnée d'une faible captation par tous les organes. Une augmentation de la production du cholestérol estérifié des HDL sans modification de leur catabolisme global. La captation du cholestérol estérifié des HDL est plus basse dans les surrénales, le foie et les testicules, ce qui suggère une perturbation de l'activité phospholipasique de la lipase hépatique chez le rat RICO
In the genetically hypercholesterolemic (RICO) rat, the high cholesterol results mainly from an increase in the cholesterol content of LDL and HDL. The input-output analysis method showed an increase in cholesterol inputs associated with a secondary stimulation of the output. By using two pools analysis we observed slower movements of plasma cholesterol to the tissues. A study of plasma lipoprotein cholesterol turnover has been undertaken. The use of analogs undegradable by cells (14C-Saccharose, 14C-Cholestéryl-linoléyl-éther) allowed to measure the LDL and HDL uptake rates. Our main results in the RICO versus normocholesterolemic are the following : a decrease in the fractional catabolic rate of chylomicrons cholesterol ester related to the lipoprotein modification. An increase in the plasma VLDL transformation to LDL. A slower LDL fractional catabolic rate which is due to a modified LDL composition and a diminished LDL uptake in all tissues. An elevated production of HDL esterified cholesterol without any change in their catabolism. The uptake of HDL esterified cholesterol was lower in the adrenals, liver and testis in the RICO than in the control rats suggesting a lowered phospholipasic activity in the hypercholesterolemic animal

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Dikic, Inga. "Signal Transduction by Proline-Rich Tyrosine Kinase Pyk2." Doctoral thesis, Uppsala : Acta Universitatis Upsaliensis : Univ.-bibl. [distributör], 2002. http://publications.uu.se/theses/91-554-5316-3/.

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Dissertations / Theses on the topic 'Ray Rice'

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