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Dissertations / Theses on the topic 'Effects of X-rays on'

Author: Grafiati

Published: 26 July 2024

Last updated: 31 July 2025

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1

Tudge, Mark Vernon. "Long and short term effects of X-rays on charge coupled devices." Thesis, Brunel University, 1996. http://bura.brunel.ac.uk/handle/2438/10450.

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EEV buried channel charge coupled devices (BC CDs) with technological variations have been studied with respect to their response to 70kVp X-rays. Process variations considered are the conventional BCCD, scintillator coated BCCDs (Gadox(Eu) and Csl(Tl)) and the inversion mode device. The work was made necessary by the use of these CCDs for dental X-ray imaging. Effects investigated include changes in device operating voltages and dark current. The dark current buildup has been characterised in terms of a prompt component seen immediately following irradiation, and a time dependent component wh

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2

Sprunt, Elizabeth A. "Effects of trypsin on cellular, chromosomal and DNA damage induced by X-rays." Thesis, University of St Andrews, 1990. http://hdl.handle.net/10023/8460.

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When cells are trypsinized before irradiation, potentiation of cell killing is seen; this is known as the 'trypsin effect'. The trypsin effect is re-examined here in the light of experiments in which enzymatic modifications of DNA in permeabilized cells has become a powerful experimental tool (Bryant et al, 1978, Ahnstrom and Bryant,1982; Natarajan et al, 1980; Bryant, 1984, 1985; Natarajan and Obe, 1984) and where in some cases it is suspected that trypsinization as part of the technique could significantly alter cell membrane permeability and chromatin structure (Obe et al, 1985; Obe and Win

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3

Galarowicz, Dale. "Instrumentation requirements for TREE Effects Data Collection at the Naval Postgraduate School Flash X-ray facility." Thesis, Monterey, California : Naval Postgraduate School, 1990. http://handle.dtic.mil/100.2/ADA237681.

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Thesis (M.S. in Electrical Engineering)--Naval Postgraduate School, June 1990.<br>Thesis Advisor(s): Maruyama, X.K. Second Reader: Michael, S.N. "June 1990." Description based on title screen as viewed on March 24, 2010. DTIC Descriptor(s): Data Acquisition, Electronics, Facilities, Instrumentation, Integrated Systems, Noise (Electrical And Electromagnetic), Photons, Pulse Generators, Pulses, Radiation, Requirements, Scale, Transient Radiation Effects, Transients, Trees, Wafers, X Rays. DTIC Identifier(s): Transient radiation effects, Data acquisition, X ray apparatus, Electromagnetic pulses,

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4

Feng, Yejun. "Exciton spectroscopy using non-resonant x-ray Raman scattering /." Thesis, Connect to this title online; UW restricted, 2003. http://hdl.handle.net/1773/9642.

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5

Tadadjeu, Sokeng Ifriky. "Sub-10 MeV proton irradiation effects on a coating obtained from the pulsed laser ablation of W2B5/B4C for space applications." Thesis, Cape Peninsula University of Technology, 2015. http://hdl.handle.net/20.500.11838/2181.

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Thesis submitted in partial fulfilment of the requirements for the degree Doctor of Technology: Electrical, Electronic and Computer Engineering in the Faculty of Engineering at the Cape Peninsula University of Technology<br>This research investigates the effects of sub-10 MeV protons on coatings obtained from the pulsed laser ablation of W2B5/B4C. This is in an attempt to extend the bullet proof applications of W2B5/B4C to space radiation shielding applications, offering low cost and low mass protection against radiation including X-rays, neutrons, gamma rays and protons in low Earth orbit.

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6

Holland, Andrew David. "Radiation effects in CCD X-ray detectors." Thesis, University of Leicester, 1990. http://hdl.handle.net/2381/27614.

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The outcome of several studies into future X-ray astronomy satellite missions has favoured the approach of using grazing incidence optics in conjunction with Charged Coupled Devices (CCD's) as focal plane detectors. This approach allows astrophysical investigation of unprecedented sensitivity by maximising source detectability and by resolving the source spectra. This thesis covers work performed in the development and evaluation of EEV CCD's for use as focal plane X-ray detectors. Due to the nature of the space environment, the interactions of radiation with CCD's also form a major part of th

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7

Shiwai, B. A. "X-ray absorption spectroscopy of dense plasmas." Thesis, University of Essex, 1989. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.235244.

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8

Mohamed, Garad Houmed. "L'anisotropie magnétique perpendiculaire induite par oxydation et recuit thermique : de la structure au magnétisme." Phd thesis, Université de Grenoble, 2012. http://tel.archives-ouvertes.fr/tel-00721760.

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Dans le domaine des couches minces (épaisseur~Å) associant un métal magnétique (Fe, Co, Ni) et un élément non magnétique (essentiellement métallique ou isolant), de remarquables propriétés physiques (aimantation, transport) nécessitent des caractérisations structurales fines. En particulier, citons le cas de jonctions tunnel (métal/isolant/métal) à aimantation perpendiculaire qui sont en cours d'étude au laboratoire Spintec (UMR8191 (CEA/CNRS/UJF). Ces nanomatériaux sont déposés par voie physique (pulvérisation cathodique) au sein de ce laboratoire. Ces nanostructures sont également sondées pa

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9

Petrigliano, Maria Stefania. "Comparison of radiobiological effects induced by ultra-high and standard dose rate of x-rays on a radio-resistant cell line." Master's thesis, Alma Mater Studiorum - Università di Bologna, 2016. http://amslaurea.unibo.it/10813/.

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Radiotherapy (RT) has recently evolved with the emergence of heavy ion radiations or new fractionation schemes of photon therapy, which modify the dose rate of treatment delivery. The aim of the present study was then to evaluate the in vitro influence of a ultra-high dose rate comparing them with standard dose rate. In this regard, a radioresistant SK-MEL-28 cell line were irradiated with x-ray in order to have a total dose of 2 and 4 Gy, at two different dose rate. The ultra-high dose rate is a specific property of the dense plasma focus (DPF) device, which has pulsed operation and thus gi

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10

Phillips, Sam. "Effects of irradiation in low-mass X-ray binaries." Thesis, University of Oxford, 2000. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.365774.

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11

Gotsis, Harry John. "A first-principles theory of magneto-X-ray effects." Thesis, Keele University, 1994. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.240005.

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12

Leal, Michael J. "Effect of pixel size and scintillator on image quality of a CCD-based digital x-ray imaging system." Link to electronic thesis, 2001. http://www.wpi.edu/Pubs/ETD/Available/etd-0502101-123456.

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13

Slabbert, Jacobus Petrus. "Inactivation synergy between high energy neutrons and ⁶⁰Co gamma rays." Doctoral thesis, University of Cape Town, 1993. http://hdl.handle.net/11427/27129.

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The interaction between sublesions produced by neutrons [p(66)/Be and d(16)/Be] and ⁶⁰Co γ-rays was investigated using mammalian cells, meristematic cells and human lymphocytes. The quality of each radiation source was quantified in terms of molecular yield per unit dose absorbed in a ferrous sulphate xylenol orange solution and was found to vary inversely with the mean LET of the radiation field. Inactivation parameters determined for mammalian and meristematic cells were not significantly different following simultaneous or sequential exposures to d(16)/Be neutrons and ⁶⁰Co γ-rays. Synergist

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14

Fogleman, Myles. "Cold X-ray Effects on Satellite Solar Panels in Orbit." VCU Scholars Compass, 2019. https://scholarscompass.vcu.edu/etd/6065.

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An exo-atmospheric nuclear detonation releases up to 80 percent of its’ energy as X-rays. Satellite’s solar cells and their protective coatings are vulnerable to low energy X-ray radiation. Cold X-rays (~1-1.5 keV) are absorbed close to the surface of materials causing the blow-off and rapid formation of Warm Dense Plasmas (WDPs), particularly in a gap between the unshielded active elements of solar cells. To understand how WDPs are created, it is necessary to investigate the power density distribution produced by cold X-rays for typical solar panel surface materials. The Monte Carlo stepping

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15

Glimskär, Stålberg Karin. "Prenatal Ultrasound and X-ray - Potentially Adverse Effects on the CNS." Doctoral thesis, Uppsala University, Department of Women's and Children's Health, 2008. http://urn.kb.se/resolve?urn=urn:nbn:se:uu:diva-8666.

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<p>The aim with this thesis was to assess the impact of prenatal ultrasound exposure on psychotic illness, childhood brain tumors (CBT) and school achievement, and to evaluate prenatal X-ray exposure and the risk of CBT.</p><p>In a cohort study, children born in Malmö 1973-1978, where prenatal ultrasound was used routinely, were considered exposed (n=13, 212) and children born at hospitals with no use of ultrasound, were considered unexposed (n=357,733). Exposed men had a tendency toward a higher risk of schizophrenia. For other psychoses there were no differences between groups. Other factors

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16

Avades, Tony. "Renal effects of X-ray contrast media in different experimental models." Thesis, University of Surrey, 1997. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.388979.

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17

Sprong, Amy Nicole. "X Chromosome Aneuploidy: A Look at the Effects of X Inactivation." Miami University Honors Theses / OhioLINK, 2008. http://rave.ohiolink.edu/etdc/view?acc_num=muhonors1209079846.

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18

Ramos, Ceja Miriam Elizabeth [Verfasser]. "Studying galaxy clusters through X-rays and the Sunyaev-Zel'dovich effect: simulations, detection and characterisation / Miriam Elizabeth Ramos Ceja." Bonn : Universitäts- und Landesbibliothek Bonn, 2016. http://d-nb.info/1113688289/34.

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19

Mueller, Stefan. "Investigation into structural order/disorder effects in kaolinites using X-ray diffraction." Thesis, University of Exeter, 2001. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.342014.

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20

Cunningham, Charnay. "Radiosensitization effects of gold nanoparticles in proton therapy." University of the Western Cape, 2017. http://hdl.handle.net/11394/5758.

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Magister Scientiae - MSc<br>Despite recent advances in radiotherapy, some tumours have shown to be resistant to treatment and patients still experience long term side effects. Gold nanoparticles (AuNPs) have been identified as effective radiosensitizers when employed concurrently with kilovoltage X-rays, which could selectively increase the dose delivered to a patient's tumour. The clinical application of proton radiation has gained renewed attention due to the lower integral body dose of protons compared to traditional X-ray based therapy. While extensive research has been formed on the behav

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21

Appelskog, Ioulia. "Effects of imidazoline compounds on intracellular CA²⁺ and apoptosis /." Stockholm, 2001. http://diss.kib.ki.se/2001/91-628-4654-X.

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22

MAIO, MIREIA F. "Avaliacao dos efeitos da radiacao ionizante em materiais utilizados em restauracoes dentarias." reponame:Repositório Institucional do IPEN, 2009. http://repositorio.ipen.br:8080/xmlui/handle/123456789/9408.

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Made available in DSpace on 2014-10-09T12:26:35Z (GMT). No. of bitstreams: 0<br>Made available in DSpace on 2014-10-09T14:04:21Z (GMT). No. of bitstreams: 0<br>Dissertacao (Mestrado)<br>IPEN/D<br>Instituto de Pesquisas Energeticas e Nucleares - IPEN-CNEN/SP

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23

Duran, Nádia Marion. "X-ray spectroscopy uncovering the effects of Cu and Fe based nanoparticles on Phaseolus vulgaris L. germination and seedling development." Universidade de São Paulo, 2018. http://www.teses.usp.br/teses/disponiveis/64/64135/tde-13112018-150241/.

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Nanotechnology offers a great potential do design fertilizers with unique properties capable to boost the plant productivity. However, the nanoparticles environmental fate and their toxic responses still need to be deeply investigated to their safe use. This study aims to investigate the effect of copper oxide (nCuO) and magnetite nanoparticles (nFe3O4) on the germination and seedling development of Phaseolus vulgaris L. Seeds were treated in nanoparticles dispersions in a wide range of concentrations (1, 10, 100 and 1 000 mg L-1) and incubated in a germination chamber during 5 days. Different

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24

Rimondini-Giorgini, Roberto. "Behavioural and biochemical pharmacology of adenosine/dopamine receptor/receptor interaction /." Stockholm, 1999. http://diss.kib.ki.se/1999/91-628-3617-X/.

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25

Achel, Daniel Gyingiri. "Estudio comparativo del efecto radioprotector de un extracto de pycnanthus angolensis frente al daño inducido por rayos X= Comparative study of the radioprotective effect of an extract of pycnanthus angolensis against damage induced by X-rays." Doctoral thesis, Universidad de Murcia, 2013. http://hdl.handle.net/10803/117787.

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Se pretende la obtención de un extracto de semillas de P.angolensis (PASE) para determinar su capacidad protectora contra el daño inducido por rayos X, así como compararla con otros radioprotectores utilizados en radioterapia y en radiobiología. PASE presentó una capacidad genoprotectora significativa (p<0,001) frente al daño inducido por rayos X con un factor de protección del 25-35% y factor de reducción de dosis entre 2,5-3,7, dependiendo del momento de administración. La supervivencia celular tras la exposición a 10Gy de rayos X mostró un factor de protección del 86% en las células epiteli

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26

Sohail, Hafiz Muhammad. "Growth of Pt/Mg Multilayer X-ray Mirrors : Effects of Sputter Yield Amplification." Thesis, Linköping University, Department of Physics, Chemistry and Biology, 2009. http://urn.kb.se/resolve?urn=urn:nbn:se:liu:diva-17392.

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<p>This thesis report is focused on the growth of Pt/Mg multilayers and the studies of the sputter yield amplification effect in these. The main application is to use the multilayers as X-ray mirrors reflecting an X-ray wavelength of 17 Å. This wavelength is important for astronomical applications in general, and solar imaging applications in particular.</p><p>For periodic X-ray multilayer mirrors only a certain specific wavelength of X-rays can be reflected. What wavelength that is reflected depends on the individual layer thicknesses of the materials that are constituting the multilayer. The

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27

Brown, Craig William. "Radiation damage effects on X-Ray detectors for future planetary and astronomy missions." Thesis, University of Leicester, 2011. http://hdl.handle.net/2381/9392.

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This thesis describes both theoretical and experimental work conducted to further develop X-ray instrumentation for future planetary and astronomy space missions. Such instruments are used to probe, ever deeper, the high energy Universe; from black holes and active galactic nuclei, to supernovae, galaxy formation and clusters. X-rays can also be used to establish the elemental composition of planetary surfaces from orbit or in situ, furthering our understanding of planetary and moon formation in our solar system. Chapter 1 introduces X-ray instrumentation and uses the International X-ray Obser

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28

Cassinelli, J., Richard Ignace, W. Waldron, J. Cho, N. Murphy, and A. Lazarian. "The Effects of Clumps in Explaining X-Ray Emission Lines from Hot Stars." Digital Commons @ East Tennessee State University, 2008. https://dc.etsu.edu/etsu-works/6271.

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It is now well established that stellar winds of hot stars are fragmentary and that the X-ray emission from stellar winds has a strong contribution from shocks in winds. Chandra high spectral resolution observations of line profiles of O and B stars have shown numerous properties that had not been expected. Here we suggest explanations by considering the X-rays as arising from bow shocks that occur where the stellar wind impacts on spherical clumps in the winds. We use an accurate and stable numerical hydrodynamic code to obtain steady state physical conditions for the temperature and density

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29

Johnson, Jedediah Edward Jensen. "Computationally Modeling the Effects of Surface Roughness on Soft X-Ray Multilayer Reflectors." Diss., CLICK HERE for online access, 2006. http://contentdm.lib.byu.edu/ETD/image/etd1626.pdf.

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30

Nihlén, Annsofi. "Ethers as gasoline additives : toxicokinetics and acute effects in humans /." Solna : National Institute for Working Life (Arbetslivsinstitutet), 1998. http://diss.kib.ki.se/1999/91-7045-504-X/.

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31

Cendes, Yvette N. "An Extended Study on the Effects of Incorrect Coordinates on Surface Detector Timing." Case Western Reserve University School of Graduate Studies / OhioLINK, 2011. http://rave.ohiolink.edu/etdc/view?acc_num=case1310742128.

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32

Lundman, Pia. "Effects of triglycerides on the endothelium /." Stockholm, 2001. http://diss.kib.ki.se/2001/91-628-4881-X/.

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33

Duesing, Peter Michael. "Effects of pressure on lyotropic liquid-crystalline phase behaviour and structure." Thesis, Imperial College London, 1995. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.294919.

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34

Lagarde, Frédéric. "Residential radon exposure and lung cancer : risk assessment based on epidemiologic data /." Stockholm, 2001. http://diss.kib.ki.se/2001/91-628-4282-x/.

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35

Sandin, Johan. "The hippocampal opioid system : role in spatial learning /." Stockholm, 2000. http://diss.kib.ki.se/2000/91-628-4332-x/.

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36

MacNamara, Barbara. "Indicators of apoptosis and proliferation in haematological malignancies : with special reference to drug resistance and prognosis /." Stockholm, 2001. http://diss.kib.ki.se/2001/91-628-4962-X/.

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37

Stenström, Mats. "Computerised microtomography : non-invasive imaging and analysis of biological samples, with special reference to monitoring development of osteoporosis in small animals /." Linköping : Univ, 2000. http://urn.kb.se/resolve?urn=urn:nbn:se:liu:diva-5030.

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38

Favier, Pierre. "Etude et conception d'une cavité Fabry-Perot de haute finesse pour la source compacte de rayons X ThomX." Thesis, Université Paris-Saclay (ComUE), 2017. http://www.theses.fr/2017SACLS412/document.

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La diffusion Compton inverse est un moyen unique pour produire des rayons X quasi-monochromatiques via l'interaction entre des électrons relativistes et une impulsion laser. Ce processus présente l'avantage de produire des flux très élevés de rayons X avec des énergies supérieures à quelques dizaines de keV. De plus, la divergence du faisceau de sortie est beaucoup plus grande que dans les sources de lumière synchrotron classiques et le faisceau de rayons X est donc plus facile à manipuler. Nous présentons une source de rayons X en construction à l'Université Paris-Sud, ThomX. Cette source uti

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39

Markovic, Alexander. "X-ray-induced currents and conductivity effects in a radiation-charged electret ionization chamber." Thesis, McGill University, 1992. http://digitool.Library.McGill.CA:80/R/?func=dbin-jump-full&object_id=56620.

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Studies of Radiation-Induced Conductivity (RIC) in the Teflon film of a radiation-charged electret ionization chamber (EIC) are discussed. An EIC measures dose from the amount of electret surface charge neutralized by ions created in the chamber's sensitive volume. A semi-empirical equation is presented for the calculation of prompt time-dependent RIC as a function of air-kerma rate and electric field. Measurements showing the dependence of radiation-induced current on electrode material show a tenfold difference in current between aluminum and graphite electrodes. RIC permits charge migration

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40

Gamblin, Stuart David. "Chemical effects in the soft x-ray spectra of first row transition metal compounds." Thesis, Queen Mary, University of London, 1996. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.243969.

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41

Buckingham, William Morgan Ivey Lisa Renee. "Effects of mosaicity on parametric x-radiation production /." Monterey, Calif. : Springfield, Va. : Naval Postgraduate School ; Available from National Technical Information Service, 1994. http://handle.dtic.mil/100.2/ADA293677.

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Thesis (M.S. in Physics) Naval Postgraduate School, December 1994.<br>Thesis advisor(s): Xavier K. Maruyama. "December 1994." Includes bibliographical references. Also avaliable on microform AND online.

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Buckingham, William Morgan, and Lisa Renee Ivey. "Effects of mosaicity on parametric x-radiation production." Thesis, Monterey, California. Naval Postgraduate School, 1994. http://hdl.handle.net/10945/42781.

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Approved for public release, distribution unlimited<br>A frequency domain theory for structural dynamic model error localization is applied to the damage detection problem. The localization theory is based on a transformation of the frequency response function matrix, and represents an exact solution for the location of the differences between two frequency response function models, given spatially complete data. The localization is performed at all frequencies in a chosen bandwidth, and therefore implicitly accounts for all modes of interest. Methods for coping with spatially incomplete data

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43

Schettino, Giuseppe. "Development of a focused X-ray source as a microprobe of cellular radiation response." Thesis, King's College London (University of London), 2000. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.311928.

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44

Ambos, Tina Claudia, Phillip C. Nell, and Torben Pedersen. "Combining Stocks and Flows of Knowledge: The Effects of Intra-Functional and Cross-Functional Complementarity." Wiley, 2013. http://dx.doi.org/10.1111/j.2042-5805.2013.01063.x.

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In the area of knowledge management and knowledge governance, previous research has mostly focused on either knowledge stocks or knowledge flows of firms or organizational units. Contrary to this work, our study is among the first to integrate these two perspectives in order to shed light on the complementarity effects of different types of knowledge stocks and flows in the multinational corporation (MNC). We investigate intra-functional as well as cross-functional complementarity effects from the perspective of the knowledge recipient. We test the impact of stocks on flows on the benefit that

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45

Beyerlein, Kenneth Roy. "Simulation and Modeling of the Powder Diffraction Pattern from Nanoparticles: Studying the Effects of Faulting in Small Crystallites." Doctoral thesis, Università degli studi di Trento, 2011. https://hdl.handle.net/11572/368693.

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Accurate statistical characterization of nanomaterials is crucial for their use in emerging technologies. This work investigates how different structural characteristics of metal nanoparticles influence the line profiles of the corresponding powder diffraction pattern. The effects of crystallite size, shape, lattice dynamics, and faulting are all systematically studied in terms of their impact on the line profiles. The studied patterns are simulated from atomistic models of nanoparticles via the Debye function. This approach allows for the existing theories of diffraction to be tested, and ex

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46

Silva, Dilleys Ferreira da. "Estudo dos efeitos fotoinduzidos por Raio-X em filmes vítreos do sistema [Sb(PO3)3]n-Sb2O3 dopados com CuO." Universidade de São Paulo, 2010. http://www.teses.usp.br/teses/disponiveis/88/88131/tde-29032010-150508/.

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A fotosensibilidade à radiação dos vidros fosfatos é uma propriedade que tem despertado grande interesse nas últimas décadas12. No presente trabalho, foi realizado um estudo sistemático e comparativo dos fenômenos fotoinduzidos por meio da caracterização de filmes do sistema (Sb(PO3)3)n - Sb2O3 quando dopados com óxido de cobre (CuO). Neste estudo, foram observadas as mudanças fotoestruturais e os efeitos causados por ação dos Raios-X. Os danos causados pela radiação sobre as amostras foram investigados através de medidas de perfilometria, Difração de Raio-X, EPR (Electron Paramagnetic Resonan

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47

Zackrisson, Björn. "Biological effects of high energy radiation and ultra high dose rates." Doctoral thesis, Umeå universitet, Onkologisk radiobiologi, 1991. http://urn.kb.se/resolve?urn=urn:nbn:se:umu:diva-96889.

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Recently a powerful electron accelerator, 50 MeV race-track microtron, has been taken into clinical use. This gives the opportunity to treat patients with higher x-ray and electron energies than before. Furthermore, treatments can be performed were the entire fractional dose can be delivered in parts of a second. The relative biological effectiveness (RBE) of high energy photons (up to 50 MV) was studied in vitro and in vivo. Oxygen enhancement ratio (OER) of 50 MV photons and RBE of 50 MeV electrons were investigated in vitro. Single-fraction experiments, in vitro, using V-79 Chinese hamster

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48

Langner, Ulrich Wilhelm. "Effects of termination shock acceleration on cosmic rays in the heliosphere / U.W. Langner." Thesis, North-West University, 2004. http://hdl.handle.net/10394/346.

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The interest in the role of the solar wind termination shock (TS) and heliosheath in cosmic ray (CR) modulation studies has increased sigm6cantly as the Voyager 1 and 2 spacecraft approach the estimated position of the TS. For this work the modulation of galactic CR protons, anti-protons, electrons with a Jovian source, positrons, Helium, and anomalous protons and Helium, and the consequent charge-sign dependence, are studied with an improved and extended two-dimensional numerical CR modulation model including a TS with diffusive shock acceleration, a heliosheath and drifts. The modulation is

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Lang, Rodrigo Guedes. "Effects of Lorentz invariance violation on the ultra-high energy cosmic rays spectrum." Universidade de São Paulo, 2017. http://www.teses.usp.br/teses/disponiveis/76/76131/tde-13042017-143220/.

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Relativity is one of the most important and well tested theories and Lorentz invariance is one of its pillars. Lorentz invariance violation (LIV), however, has been discussed in several quantum gravity and high energy models. For this reason, it is crucial to test it. Several tests, both terrestrial and astrophysical, have been performed in the last years and provide limits on the violation. This work takes part in these efforts and discuss the possibility of testing LIV with ultra-high energy cosmic rays (UHECRs). The effects of LIV in their propagation and the resulting changes in the spectr

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50

Tessem, May-Britt. "Metabolic effects of ultraviolet radiation on the anterior part of the eye." Doctoral thesis, Norwegian University of Science and Technology, Faculty of Medicine, 2006. http://urn.kb.se/resolve?urn=urn:nbn:no:ntnu:diva-742.

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<p>Ultraviolet radiation (UV-R) is an environmental factor known to increase the risk of developing an irreversible opacification of the lens (cataract). Increased irradiance of UV-R to the earth because of depletion of stratospheric ozone is of current concern considering cataract formation. Detailed metabolic information from the cornea, lens and aqueous humour might give valuable knowledge on the biochcemical processes occurring in the eye after exposure to UV-R, and thereby a better understanding of the mechanisms by which UV-R induces cataractogenesis. The purpose of this thesis was to st

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