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Rozprawy doktorskie na temat „Ultraviolet light (UVB)”

Autor: Grafiati

Data publikacji: 4 czerwca 2021

Data aktualizacji: 1 lutego 2022

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1

Grady, George. "The effect of resveratrol on ultraviolet light-induced skin cell death." Marietta College Honors Theses / OhioLINK, 2013. http://rave.ohiolink.edu/etdc/view?acc_num=marhonors1366909727.

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Thomas-Ahner, Jennifer M. "Gender differences in UVB induced cutaneous inflammation and skin carcinogenesis." The Ohio State University, 2007. http://rave.ohiolink.edu/etdc/view?acc_num=osu1179949864.

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Endoh, Ikuko Medical Sciences Faculty of Medicine UNSW. "New mechanisms of regulation of mast cell activation." Publisher:University of New South Wales. Medical Sciences, 2008. http://handle.unsw.edu.au/1959.4/42937.

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Mast cells (MCs) play a central role in inflammation by releasing mediators following activation. S100A8 and S100A9 are abundantly expressed in inflammatory sites such as asthmatic lung, sunburnt skin and atherosclerosis where MCs are involved in pathogenesis; roles of S100A8 in MC function are undetermined. The aims of this thesis were to determine effects of S100A8 on MC activation, particularly provoked by IgE and UVB. Initially, effects of UVB on MC activation were investigated as detailed functions were unclear. Cord blood-derived human mast cells (CBMCs) were treated in vitro with varyin

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Wulff, Brian Charles. "Effects of Therapeutic Immunosuppressants on UVB Induced Inflammation and Skin Carcinogenesis in a Murine Model." The Ohio State University, 2008. http://rave.ohiolink.edu/etdc/view?acc_num=osu1227116356.

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Saul, Alison Nicole. "Psycho-physiological stress and its effects on ultraviolet light induced inflammation, DNA damage, and skin carcinogenesis." Columbus, Ohio : Ohio State University, 2007. http://rave.ohiolink.edu/etdc/view?acc%5Fnum=osu1172850801.

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Habtemichael, Yishak Tekleab. "Packaging designs for ultraviolet light emitting diodes." Thesis, Georgia Institute of Technology, 2012. http://hdl.handle.net/1853/45764.

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Aluminum Gallium Nitride (AlGaN) / Gallium Nitride (GaN) based deep ultraviolet (DUV) light emitting didoes (LEDs) with emission wavelengths between 200-280 nm enable key emerging technologies such as water/air purification and sterilization, covert communications and portable bio-agent detection/identification systems for homeland security, and surface and medical device sterilization. These devices produce a large amount of undesired heat due to low quantum efficiencies in converting electrical input to optical output. These low efficiencies are attributed to difficulties in the growth&dopin

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7

Rocha, Artur Batista de Oliveira 1982. "Efeitos da radiação UV-C e da luz fluorescente no controle fitossanotário e na indução de resistência em batata-semente após a colheita." [s.n.], 2015. http://repositorio.unicamp.br/jspui/handle/REPOSIP/256741.

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Orientadores Sylvio Luis Honório, Claudio Luiz Messias<br>Tese (doutorado) - Universidade Estadual de Campinas, Faculdade de Engenharia Agrícola<br>Made available in DSpace on 2018-08-27T23:01:54Z (GMT). No. of bitstreams: 1 Rocha_ArturBatistadeOliveira_D.pdf: 1714662 bytes, checksum: 577fdeb54b226ba61587e77781ac70cf (MD5) Previous issue date: 2015<br>Resumo: O cultivo da batateira (Solanum tuberosum L.) apresenta problemas fitossanitários decorrentes do ataque de pragas e doenças, o que acarreta altos cultos de produção. As principais doenças pós-colheita em batata-semente são: podridão se

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8

Makdoumi, Karim. "Ultraviolet light A (UVA) photoactivation of riboflavin as a potential therapy for infectious keratitis." Doctoral thesis, Örebro universitet, Hälsoakademin, 2011. http://urn.kb.se/resolve?urn=urn:nbn:se:oru:diva-20130.

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Ayoub, Lore Michele. "Can colored dissolved organic material protect coral reefs by reducing exposure to ultraviolet radiation?" [Tampa, Fla.] : University of South Florida, 2009. http://digital.lib.usf.edu/?e14.2918.

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Saifaddin, Burhan Khalid. "Development of Deep Ultraviolet (UV-C) Thin-Film Light-Emitting Diodes Grown on SiC." Thesis, University of California, Santa Barbara, 2019. http://pqdtopen.proquest.com/#viewpdf?dispub=10975858.

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<p> UV-C LEDs in the range of 265–280 nm are needed to develop new disinfection and biotechnology applications. The market share for UV-C LED, versus UV-C lamps (Hg discharge and Xe), increased from 8% in 2008 ($240M) to 25% in 2018 ($810M). However, while low-pressure mercury lamps are ~30% energy efficient, the best commercial UV-C LEDs in the 265–280 nm range are ~2% energy efficient; InGaN blue LEDs are 80% energy efficient. Research on AlGaN LEDs has made significant progress into AlGaN material quality (including threading dislocation density and n-AlGaN electrical conductivi

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Parker, Nicole Renee. "The role of kynurenine and UV light in lens protein modification." Access electronically, 2005. http://www.library.uow.edu.au/adt-NWU/public/adt-NWU20060720.111305/index.html.

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Thesis (Ph.D.)--University of Wollongong, 2005.<br>Typescript. EMBARGOED - This thesis is subject to a 12 month embargo (07/03/06 to 07/03/07) and may only be viewed and copied with the permission of the author. For further information please Contact the Archivist. Includes bibliographical references: leaf 236-266.

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Hernandez-Ferrer, Carles 1987. "Bioinformatic tools for exposome data analysis : application to human molecular signatures of ultraviolet light effects." Doctoral thesis, Universitat Pompeu Fabra, 2017. http://hdl.handle.net/10803/572046.

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Las enfermedades complejas se encuentran entre las más comunes y son causadas por una combinación de factores genéticos y ambientales (contaminación ambiental, estilo de vida, etc). Entre las enfermedades complejas que se pueden destacar se encuentran la obesidad, el asma, la hipertensión o la diabetes. Diversos estudios científicos sugieren que el hecho de padecer enfermedades complejas está condicionado a la aparición o acumulación de determinados factores ambientales. Asimismo, se ha descrito que los factores ambientales son unos de los principales contribuyentes a la carga mundial de morbi

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13

Pinos, Andrea. "Optical properties and degradation of deep ultraviolet AIGaN-based light-emitting diodes." Doctoral thesis, KTH, Fotonik, 2011. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-37917.

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14

Riley, Scott. "Measuring Viability of the Red-Tide Dinoflagellate Lingulodinium polyedra Following Treatment with Ultraviolet (UV) Light." NSUWorks, 2014. http://nsuworks.nova.edu/occ_stuetd/4.

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Harmful algae blooms (HABs) have caused millions dollars in annual losses to the aquaculture industry, inhibited beach recreation, and have threatened marine and human health. HABs and red tides can develop suddenly and their frequency, geographic range, and intensity have increased over the past decade. A possible source for spreading and seeding new areas expanding the geographic range of HABs is ballast water. The process of ballast water discharge has been identified as a primary vector for the translocation of non-indigenous species (NIS) and invasive species. National and international e

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15

Matallana, Surget Sabine-Astrid Biotechnology &amp Biomolecular Sciences Faculty of Science UNSW. "Physiological and molecular responses of the marine oligotrophic ultramicrobacterium Sphingopyxis Alaskensis rb2256 to visible light and ultraviolet radiation." Awarded By:University of New South Wales. Biotechnology & Biomolecular Sciences, 2009. http://handle.unsw.edu.au/1959.4/43251.

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Ultraviolet radiation reaching the Earths surface (UVR, 280-400 nm) may penetrate deep into the clear oligotrophic waters influencing a large part of the euphotic layer. Marine heterotrophic bacteria at the surface of the oceans are especially sensitive to the damaging solar radiation due to their haploid genome with little or no functional redundancy and lack of protective pigmentation. In a context of climate change and ozone depletion, it is clearly important to understand the physiology and underlying molecular UVR responses of abundant marine bacteria species. We chose the marine ultrami

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16

Choy, Man Hon. "Investigation of the effects of the 1) UV absorbance of halide ions and 2) wall adsorption of marker ions for indirect detection in capillary electrophoresis." HKBU Institutional Repository, 2001. http://repository.hkbu.edu.hk/etd_ra/286.

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Newkirk, Scott Hunter. "Detection levels of drinking water contaminants using field portable ultraviolet and visible light (uv/vis) spectrophotometry /." Download the thesis in PDF, 2005. http://www.lrc.usuhs.mil/dissertations/pdf/NEWKIRK2005.pdf.

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18

Nahapetian, Tigran Gevorgi. "Characterization and Optimization of the Smartphone Response to Paper Microfluidic Biosensor Assay Under UV Light Source." Thesis, The University of Arizona, 2015. http://hdl.handle.net/10150/578610.

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The use of smartphone for the detection of biological constituents is becoming a useful tool as a point-of-care (POC) device and diagnostics. When combined with microfluidic paper analytic devices (μPAD) and particle immunoassays, we have the ability to detect bacterial pathogens with sensitivity and specificity. Environmental conditions as well as variability in smartphone imaging and the cellulose in paper microfluidics however can sometimes easily interfere with the detection of small signal changes. Combining this issue with the detection of pathogens in blood (our model biological sample

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19

Carpenter, Oliver L. "Ultraviolet Light-Induced Regulation of Transcription and Translation, COX-2 Expression and Noncanonical NF-κB Activation". Ohio University / OhioLINK, 2013. http://rave.ohiolink.edu/etdc/view?acc_num=ohiou1382624015.

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Johnson, McKayla. "The Effect of Ultraviolet Light on Cell Viability, DNA Damage and Repair in Hutchinson-Gilford Progeria Syndrome and BJ Fibroblasts." Digital Commons @ East Tennessee State University, 2011. https://dc.etsu.edu/honors/90.

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Patients of Hutchinson-Gilford Progeria Syndrome (HGPS) display a rate of aging up to ten times that of normal human populations. It might be expected that HGPS cells would have a decreased ability to repair DNA damage through the cell cycle as compared to normal cells such as those of the BJ cell line since DNA damage accumulation is a hallmark phenotype of aging. On earth, we are exposed to far more ultraviolet-B (UV-B, 280-315 nm) and UV-A (315-400 nm) than UV-C (100-280 nm) radiation, since the latter is filtered-out by the atmospheric ozone layer. The relative sensitivity of prematurel

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21

László, Csaba F. "Translation regulation of UV-light-induced transcription factor NF-kappa-B and oncogene COX-2." View abstract, 2009. http://gateway.proquest.com/openurl?url_ver=Z39.88-2004&res_dat=xri:pqdiss&rft_val_fmt=info:ofi/fmt:kev:mtx:dissertation&rft_dat=xri:pqdiss:3353542.

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22

Heuberger, Wolfgang. "Einfluss von UV-Licht und Vitamin D auf die Aufzucht von Wasser- und Landschildkröten." München Verl. Dr. Hut, 2008. http://d-nb.info/992163005/04.

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23

Messenger, David James. "Impact of UV light on the plant cell wall, methane emissions and ROS production." Thesis, University of Edinburgh, 2009. http://hdl.handle.net/1842/4347.

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This study presents the first attempt to combine the fields of ultraviolet (UV) photobiology, plant cell wall biochemistry, aerobic methane production and reactive oxygen species (ROS) mechanisms to investigate the effect of UV radiation on vegetation foliage. Following reports of a 17% increase in decomposition rates in oak (Quercus robur) due to increased UV, which were later ascribed to changes in cell wall carbohydrate extractability, this study investigated the effects of decreased UV levels on ash (Fraxinus excelsior), a fast-growing deciduous tree species. A field experiment was set up

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24

Martínez, Garcia Maria. "Evaluación de la letalidad microbiana mediante tratamientos UVC en continuo y su combinación con UHPH en matrices líquidas de pH neutro." Doctoral thesis, Universitat Autònoma de Barcelona, 2019. http://hdl.handle.net/10803/670189.

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En aquest treball es va estudiar l’efecte dels tractaments UVC (llum ultravioleta C) en continu, utilitzant un reactor UVC amb unes característiques intrínseques específiques (Patent nº 2.965.766 B2), a la supervivència de Bacillus subtilis i altres microorganismes inoculats en diferents matrius alimentàries líquides de pH neutre amb diferent coeficient d’absorció (254 nm). A més, es van combinar els tractaments de UVC amb tractaments d’UHPH (Ultra Alta Homogeneïtzació per Pressió) a diferents pressions (100 i/o 200 MPa) i temperatures (20 i/o 60 ºC) per poder avaluar el possible efecte sinèrg

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25

Blázquez, Salvador Elena. "Ultraviolet light (UV-C) as a redundant biosafety step for pathogen inactivation in the manufacturing process of spray dried plasma from animal origin." Doctoral thesis, Universitat Autònoma de Barcelona, 2019. http://hdl.handle.net/10803/667360.

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El plasma dessecat per atomització (SDP) és una font de proteïnes funcionals obtinguda a partir de sang d’animals sans, aprovats per les autoritats veterinàries per al consum humà. La sang es recull a l'escorxador, es tracta amb anticoagulant, es refreda i es transporta a instal·lacions industrials on es centrifuga per separar els glòbuls vermells de la fracció plasmàtica. Després, el plasma es concentra i s'asseca a altes temperatures (80ºC) per convertir-lo en pols. Aquest mètode conserva l’activitat biològica de les proteïnes. El SDP s’utilitza principalment en dietes de porcí per millorar

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26

Robeson, Kalen Z. "Development of a Fast and Accurate Mutation Assay in Human Cell Lines." Ohio University Honors Tutorial College / OhioLINK, 2017. http://rave.ohiolink.edu/etdc/view?acc_num=ouhonors149270391894463.

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Oliveira, Clélia Aparecida da Silva 1972. "Tratamento de corante têxtil por eletrólise, fotólise e fotocatálise utilizando LED UV = Treatment of textile dye by electrolytic, photolytic and photocatalytic processes." [s.n.], 2013. http://repositorio.unicamp.br/jspui/handle/REPOSIP/267750.

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Orientador: Peterson Bueno de Moraes<br>Dissertação (mestrado) - Universidade Estadual de Campinas, Faculdade de Tecnologia<br>Made available in DSpace on 2018-08-23T06:55:03Z (GMT). No. of bitstreams: 1 Oliveira_CleliaAparecidadaSilva_M.pdf: 1434373 bytes, checksum: 2411a1ce9b13fbe4e8f7d778c6dfd3ea (MD5) Previous issue date: 2013<br>Resumo: A indústria têxtil gera elevados volumes de efluentes com alta carga orgânica e compostos recalcitrantes, os quais são tratados por sistemas baseados em processos físicos, químicos e biológicos convencionais. Entretanto, o caráter não destrutivo dos trat

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28

Dhahir, Namariq. "EFFECTS OF THERMAL AND NON-THERMAL METHODS ON THE CHEMICAL COMPOSITION AND BACTERIAL INACTIVATION OF CAMEL MILK." OpenSIUC, 2021. https://opensiuc.lib.siu.edu/dissertations/1928.

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Understanding the composition of camel milk coupled with studying the effects of thermal and non-thermal treatments on its components and bacterial inactivation were the general objectives of this dissertation. In the first study (Chapter 2), the gross composition of camel milk including milk protein, fat, casein, total solids, lactose, ash, and mineral content were analyzed. In addition, fatty acid profile, amino acid profile, protein fractions, and volatile compounds were evaluated as well. Our results revealed that camel milk has its unique nutrients profile. These findings make it easier f

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Levy, Caroline. "Principaux facteurs influençant l'efficacité de la lumière pulsée pour la décontamination des microorganismes pathogènes et d’altération des denrées alimentaires." Thesis, Avignon, 2010. http://www.theses.fr/2010AVIG0633/document.

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La décontamination microbienne est sujet majeur de préoccupation du secteur agroalimentaire. Des nouvelles technologies physiques de décontamination, dites athermiques, sont d’un emploi croissant. La Lumière Pulsée, utilisée pour décontaminer les surfaces et les liquides clairs, en fait partie. Elle utilise des flashes de lumière blanche riches en UV, et délivrés en moins d'une milliseconde. La plupart des traitements par lumière pulsée sont définis dans la littérature par des paramètres spécifiques à l'équipement utilisé. Le but de cette étude a été dans un premier temps de caractériser le tr

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Akarid, Ahmed. "Étude numérique et expérimentale de la diffraction en géométrie conique de réseaux optiques aux longueurs d’ondes X et UV." Thesis, Université Paris-Saclay (ComUE), 2019. http://www.theses.fr/2019SACLS327.

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L’utilisation de réseaux optiques dans la géométrie de diffraction conique a connu ces dernières décennies un essor remarquable dans les domaines UV et X grâce à ses propriétés particulières: absence de l’écrantage derrière les traits du réseau aux incidences rasantes, faible dispersion angulaire limitant l’étirement temporel, efficacité de diffraction élevée. Son usage s’est imposé pour la monochromatisation d’impulsions ultra-brèves. C’est aussi l’une des deux options retenues par la Nasa pour le spectrographe à réseau de l’Observatoire à rayon X de la future mission Lynx. Ce travail de thès

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Themistocleus, Andreas Constantinos. "The pathophysiology of UVA-light induced hyperalgesia." Thesis, 2009. http://hdl.handle.net/10539/7207.

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D.Phil. Faculty of Health Sciences, University of the Witwatersrand, 2009<br>In this thesis I describe the development of an animal model of sustained hyperalgesia induced by exposure to ultraviolet (UV) A light to the rat’s tail, and the role of the Cfibre barrage and peripheral afferent fibre sensitization in this model of hyperalgesia. Exposure of rats’ tails to UVA-light caused hyperalgesia to a noxious thermal challenge, immersion of the rats’ tails into 49°C water, and a noxious mechanical challenge, application of a static force of 3.9N by a bar algometer onto the rats’ tails. The

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Beggs, Clive B. "A quantitative method for evaluating the photoreactivation of ultraviolet damaged microorganisms." 2002. http://hdl.handle.net/10454/3772.

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The lethal effect of ultraviolet (UV) light on microorganisms is well known and many studies have been undertaken into the effects of UV induced damage. Most of this work has been experimental; by comparison relatively little theoretical work has been undertaken to analyse the kinetics of the UV inactivation process, or to develop quantitative methodologies to support the experimental work. This paper presents a new and simple model for quantifying the photolysis rate. A theoretical study is also presented in this paper which quantifies photolysis rates for E. coli O26 and E. coli O157:H7. Thi

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Chueh, Yu-Hua, and 蘇宥樺. "Sulforaphane protects human dermal fibroblast from ultraviolet (UV) light B induce cell damage." Thesis, 2014. http://ndltd.ncl.edu.tw/handle/31404849939213992168.

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碩士<br>國防醫學院<br>生物化學研究所<br>102<br>In this study we found that ultraviolet B exposure can decrease adhesion cell number, increase intracellular ROS and induce cell death . In addition, UVB can decrease fibronectin protein expression. All of these effect induce by UVB can be blocked by Sulforaphane. UVB radiation decrease Nrf2 protein expression and sulforaphane can reverse it and inhibit Nrf2 downstream targeting genes expression such as HO-1 and NQO1. By increasing antioxidant gene expression sulforaphane can decrease intracellular ROS and protect cells. Similarly N-acetylcysteine can decrease

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Yin, Yi. "Mapping of UV-Induced Mitotic Recombination in Yeast." Diss., 2015. http://hdl.handle.net/10161/10467.

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<p>In diploid yeast cells, mitotic recombination is very important for repairing double-strand breaks (DSB). When repair of a DSB results in crossovers, it may cause loss of heterozygosity (LOH) of markers centromere-distal to the DSB in both daughter cells. Gene conversion events unassociated with crossovers cause LOH for an interstitial section of a chromosome. Alternatively, DSBs can initiate break-induced replication (BIR), causing LOH in only one of the daughter cells. Mapping mitotic LOH contributes to understanding of mechanisms for repairing DSBs and distribution of these recombinogeni

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Hudson, Zelda. "The applicability of advanced treatment processes in the management of deteriorating water quality in the Mid-Vaal river system / Zelda Hudson." Thesis, 2015. http://hdl.handle.net/10394/16075.

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The main objective of this study was to determine the applicability of advanced water treatment processes namely granular activated carbon (GAC) adsorption, ultraviolet (UV) light disinfectant and ozone in the management of deteriorating water quality in the Mid-Vaal River system for drinking purposes. Both the scarcity and the deteriorating quality of water in South Africa can be addressed by investigating advanced water treatment processes such as GAC adsorption, UV light disinfectant and ozone. Previously disregarded water resources have the potential to be purified and advanced treatments

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Feng, Wen-yang. "Recombinagenic and anti-mutagenic processing of UV-light photoproducts by the Escherichia coli methyl-directed mismatch-repair system." Thesis, 1994. http://hdl.handle.net/1957/35075.

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Cerqueira, Sara Isabel Pimenta. "Estudo de novas tecnologias que permitam desenvolver um esmalte aquoso para aplicação em madeira com excelente desempenho." Master's thesis, 2018. http://hdl.handle.net/1822/59833.

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Dissertação de mestrado integrado em Engenharia Biológica (área de especialização em Tecnologia Química e Alimentar)<br>A madeira é um material natural, sustentável e ecológico largamente usado como um material de construção. No entanto, é muito mais facilmente degradado por fatores ambientais, dos quais são exemplo os microrganismos, a água e a radiação solar, do que qualquer outro material. Os revestimentos para a madeira, incluindo os produtos de acabamentos como os esmaltes, servem e têm os principais objetivos de decorar, dando a aparência desejada, e proteger a sua superfície. Ao se

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