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Dissertations / Theses on the topic 'Sulfur compounds'

Author: Grafiati

Published: 4 June 2021

Last updated: 25 July 2025

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1

Ohshiro, Takashi. "MICROBIAL SULFUR METABOLISM OF HETEROCYCLIC SULFUR COMPOUNDS." Kyoto University, 1996. http://hdl.handle.net/2433/78073.

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2

Ghosh, Supriyo. "Production of Volatile Sulfur Compounds from Inorganic Sulfur by Lactococci." DigitalCommons@USU, 2003. https://digitalcommons.usu.edu/etd/5493.

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Production of volatile sulfur compounds in cheese is associated with desirable flavors. The direct source of these compounds has been assumed to arise from the metabolism of methionine and cysteine. However, the methionine concentration in cheese rises above the amount found in casein during aging, suggesting that alternative sulfur sources are present in milk. This led us to hypothesize that lactococci may acquire sulfur from the inorganic sulfur pool of milk, in addition to methionine and cysteine, to generate volatile sulfur compounds during cheese ripening. A turbidimetric method to determ

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3

Matuska, Vit. "Five-membered sulfur-nitrogen ring compounds." Thesis, St Andrews, 2009. http://hdl.handle.net/10023/828.

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4

Padden, Amena Nicole. "Microbial degradation of organic sulfur compounds." Thesis, King's College London (University of London), 1997. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.264989.

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5

Persson, Sten. "Volatile sulfur compounds in periodontal pockets." Umeå, Sweden : University of Umeå, Dept. of Oral Microbiology, 1993. http://catalog.hathitrust.org/api/volumes/oclc/35846617.html.

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6

Mundoma, Claudius. "Sulfur chemistry st[r]ucture and reactivity of substituted thioreas and aminothiols of physiological importance /." Morgantown, W. Va. : [West Virginia University Libraries], 1999. http://etd.wvu.edu/templates/showETD.cfm?recnum=1067.

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7

Walfort, Bernhard. "Novel dianionic sulfur ylides and related compounds." Doctoral thesis, [S.l.] : [s.n.], 2001. http://deposit.ddb.de/cgi-bin/dokserv?idn=96422187X.

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8

Kim, Kyoung Mahn. "Novel radical reactions involving sulfur-containing compounds." Thesis, University College London (University of London), 1999. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.342258.

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9

Wu, Kanning. "NMR Analysis of Sulfur Compounds in Petroleum." TopSCHOLAR®, 1992. https://digitalcommons.wku.edu/theses/3004.

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The speciation and quantification of organic sulfur forms in fossil fuel is an area of research. This thesis describes an NMR method which offers potential for identifying and possibly quantifying both nonvolatile and volatile sulfur forms in fossil fuels. The method is based on the methylation of sulfur compounds to form methyl sulfonium salts: RSR + Ch3I --> (R2S+-Ch3)I~ We propose to apply this chemistry to the analysis of sulfur functions in fossil fuels. The sulfur functions are methylated using 13C-enriched methyl iodide. The products are then analyzed by 13C NMR spectroscopy to establis

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10

Rodriguez, Francisco. "Capillary Zone Electrophoresis Studies of Sulfur Containing Compounds." TopSCHOLAR®, 1998. http://digitalcommons.wku.edu/theses/317.

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Up to this point in time, complex mixtures of tertiary sulfonium ions have been separated or analyzed employing conventional methods like HPLC or NMR procedures. In this thesis the researcher presents a new approach, the use of Capillary Zone Electrophoresis (CZE) for the analysis of these types of ions as well as the closely related thiophenium ions. CZE offers an unprecedented advantage in that separations can be employed for speciation or quantitation of complex mixtures by using the appropriate standards or specific detectors. For the study, model sulfonium and thiophenium ions were used t

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11

Reut, Stepan. "Selective adsorption of sulfur compounds from hydrocarbon mixtures." Thesis, National Library of Canada = Bibliothèque nationale du Canada, 1999. http://www.collectionscanada.ca/obj/s4/f2/dsk1/tape8/PQDD_0021/MQ58008.pdf.

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12

Namutebi, Mariam. "Asymmetric Sulfur Ylide Mediated Epoxidation of Carbonyl Compounds." Thesis, University of Bristol, 2009. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.520213.

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13

Bull, Andrew E. A. "Synthesis and characterisation of sulfur containing boron compounds." Thesis, University of Bristol, 2004. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.404434.

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14

Kanagawa, Takahiro. "DEVELOPMENT OF MICROBIAL DEODORIZING PROCESSES FOR SULFUR COMPOUNDS." Kyoto University, 1990. http://hdl.handle.net/2433/78233.

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15

Wasiowych, Christine Dara. "A study of nickel-sulfur catalysis." Thesis, The University of Sydney, 1994. https://hdl.handle.net/2123/26674.

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The [Ni(sacsac)PBu3C1]/A1EtnCl3_n (where n = 1, 2) catalyst system is investigated (Section I) by studying the isomerisation of 2,3-dimethyl-1-butene. Three parameters were varied - the temperature, and the concentrations of the nickel precursor and aluminum cocatalyst species. The temperature studies illustrated subtleties in the reaction, such as the induction period observed for the isomerisation experiment carried out at -10 °C. The isomerisation data was simulated using the SCoPfit computer program, and rate coefficients were calculated, and a kinetic model was proposed. The simulation st

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16

Chiu, Winnie Wai Hang. "Metal complexes with sulfur and selenium donor ligands /." View abstract or full-text, 2009. http://library.ust.hk/cgi/db/thesis.pl?CHEM%202009%20CHIU.

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17

Frank, Aaron J. "Small, oxygenated sulfur compounds : a neutralization-reionization mass spectrometry, ab initio/RRKM, and flowing pyrolysis study /." Thesis, Connect to this title online; UW restricted, 2000. http://hdl.handle.net/1773/11610.

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18

Jessop, Philip Gregory. "The syntheses and reactions of carbonyl(phosphine)(thiolator)ruthenium(II) complexes." Thesis, University of British Columbia, 1991. http://hdl.handle.net/2429/30928.

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The chemistry of homogeneous transition metal systems offer parallels to the reactions on the surfaces of industrial hydrodesulphurization catalysts. The reactions of several ruthenium complexes with sulphur-containing reagents are described, with an emphasis on the kinetics and mechanisms thereof. The complex Ru(CO)₂(PPh₃)₃ (2), for example, reacts quickly with thiols and disulphides, producing cct-RuH(SR)(CO)₂(PPh₃)₂ (9) and cct-Ru(SR)₂(CO)₂(PPh₃)₂ (14), respectively, although 2 fails to react with unstrained thioethers. Reactions of the related complex Ru(CO)₂(PPh₃)(dpm) (dpm=Ph₂PCH₂PPh₂) a

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19

Heer, Kaur Parmjit. "π-acid catalysed cyclisations to generate sulfur containing compounds". Thesis, University of Birmingham, 2014. http://etheses.bham.ac.uk//id/eprint/4886/.

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Complex scaffolds are readily accessed via Gold and Platinum π-acid catalysis starting from simple precursors. These precious metal π-acids are used to generate sulfur ylides which undergo rearrangement to interesting sulfur containing compounds analogous to those formed via diazo-chemistry. In this thesis the utility of these π-acids to generate sulfur ylides will be discussed by: 1) The in situ generation of α-carbonyl carbenoids directly from alkynes avoiding “sacrificial functionality”; 2) Achieving different regiochemical outcomes using electronically biased alkyne systems; 3) Designing d

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20

Du, Junyi. "X-ray crystallographic studies of sulfur/selenium heteroatom compounds." Thesis, University of St Andrews, 2016. http://hdl.handle.net/10023/8984.

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The major aim of research reported on this thesis uses X-ray crystallography to investigate the structural features of a series of pentafluorosulfuranyl (SF₅) containing aromatic compounds, chalcogen amides, 2,4-diaryl-1,3-selenazoles and 2,4-diaryl-1,3-chalcogen azoles bearing SF₅ group and organo phosphorus-chalcogen macrocycles incorporationg double OP(S)SC[sub]n or OP(Se)SeC[sub]n scaffolds. The basic theory of crystallography is introduced in Chapter 1, followed by a general discussion on pentafluorosulfuranyl (SF₅) containing heteroatom compounds and sulfur/selenium heterocycles in Chapt

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21

Jain, Manish. "Separation of sulfur compounds from FCC gasoline by pervaporation." Thesis, IIT Delhi, 2016. http://localhost:8080/xmlui/handle/12345678/7081.

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22

Sun, Chaode. "Syntheses and reactivities of [pi]-electron rich phosphorus-nitrogen and sulfur-nitrogen ligands." HKBU Institutional Repository, 1999. http://repository.hkbu.edu.hk/etd_ra/140.

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23

Wu, Shu-Pao. "Iron-sulfur cluster biosynthesis. Iron-sulfur cluster transfer from holo ISU and ISA to apo ferredoxin." Connect to this title online, 2004. http://rave.ohiolink.edu/etdc/view?acc%5Fnum=osu1078866123.

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Thesis (Ph. D.)--Ohio State University, 2004.<br>Title from first page of PDF file. Document formatted into pages; contains xx, 161 p.; also includes graphics Includes bibliographical references (p. 153-161). Available online via OhioLINK's ETD Center

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24

Laffosse, Miguel Diaz. "Stereoselective carbon-carbon bond formation via sulfur stabilized carbanions." Thesis, Georgia Institute of Technology, 1985. http://hdl.handle.net/1853/27171.

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25

Hatcher, Jancie Stinecipher. "Synthesis, characterization, and monolayer formation of sulfur-substituted tetraphenylporphyrins." Thesis, Georgia Institute of Technology, 1990. http://hdl.handle.net/1853/29977.

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26

Myers, Samuel. "Electrochemical Detection of Aliphatic Sulfur Compounds in Liquid Coal Extracts." TopSCHOLAR®, 1994. http://digitalcommons.wku.edu/theses/945.

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The presence of sulfur compounds in coal is a serious environmental problem that affects the coal industry. This problem is due to the fact that organic sulfur is not separated or removed during any physical cleaning process. Organic sulfur is removed only during a more costly chemical desulfurization process. The kinds of organosulfur compounds in coal are generally known, but the quantity of each type of compound and the distribution of these compounds throughout the coal matrix has not been studied extensively. The objective of this research was to investigate the more reactive and chemical

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27

Yuen, Yue Tai. "Trithiazyl trichloride in the synthesis of sulfur-nitrogen heterocyclic compounds." Thesis, Imperial College London, 1995. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.362732.

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28

Winn, Caroline Louise. "Synthesis of sulfur compounds and their use in asymmetric synthesis." Thesis, University of Cambridge, 2001. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.621078.

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29

Chen, Yiding. "Synthesis of sulfur-containing organic compounds : sulfones, sulfonamides and benzoisothiazoles." Thesis, University of Oxford, 2017. https://ora.ox.ac.uk/objects/uuid:92038d85-0597-4db0-8e56-0a32c671a655.

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This thesis documents the development of novel methodologies for access to sulfur-containing compounds, including sulfones, sulfonamides and benzoisothiazoles. <b>Chapter 1</b> provides an overview of the applications and the synthesis of sulfonyl-containing compounds. A comprehensive introduction to the development of sulfur dioxide surrogates and their applications in transition metal-catalysed organic chemistry is given. <b>Chapter 2</b> describes the development of a one-step copper(I)-catalysed sulfonylative Suzuki-Miyaura cross coupling reaction. A wide range of aryl and alkenyl boronic

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30

Koyama, Daisuke. "Ultrafast photochemical reaction dynamics of aromatic sulfur compounds in solution." Thesis, University of Bristol, 2017. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.730850.

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31

Leung, Hoitung Terry. "Chemistry of deca- and dodeca-closo-borate bearing three exopolyhedral sulfur substituents." Connect to this title online, 2004. http://rave.ohiolink.edu/etdc/view?acc%5Fnum=osu1092772114.

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Thesis (Ph. D.)--Ohio State University, 2004.<br>Title from first page of PDF file. Document formatted into pages; contains xvii, 168 p.; also includes graphics (some col.) Includes bibliographical references (p. 164-168). Available online via OhioLINK's ETD Center

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32

Witek, Rachel M. "Studies in synthetic methodology routes to sulfur- and nitrogen-containing compounds /." [Gainesville, Fla.] : University of Florida, 2005. http://purl.fcla.edu/fcla/etd/UFE0011359.

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33

Martins, Emanuel. "X-ray spectroscopic study of the electronic structure of sulfur compounds." Thesis, Queen Mary, University of London, 1995. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.283717.

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34

Sokmen, Munevver. "Studies of the metal ion-catalysed oxidation of heterocyclic sulfur compounds." Thesis, Sheffield Hallam University, 1997. http://shura.shu.ac.uk/20384/.

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Chemical oxidation by hydrogen peroxide is used for the treatment of hazardous organic materials present at low concentrations in contaminated soil and water. A knowledge of the oxidation of thiophene and its derivatives, with particular reference to oxidative destruction and the identification of intermediate oxidation products would be useful for a deeper understanding of reaction mechanisms in waste treatment and the optimization of conditions. In this thesis, the oxidation of thiophenes, namely thiophene and 2- and 3-methylthiophene, with hydrogen peroxide and catalyst systems, e.g. Fenton

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35

Zhu, Lei. "Aqueous phase reaction kinetics of organic sulfur compounds of atmospheric interest." Diss., Available online, Georgia Institute of Technology, 2004:, 2004. http://etd.gatech.edu/theses/available/etd-11172004-142820/unrestricted/zhu%5Flei%5F200412%5Fphd.pdf.

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Thesis (Ph. D.)--Earth and Atmospheric Sciences, Georgia Institute of Technology, 2005.<br>Davis, Douglas, Committee Member ; Huey, Greg, Committee Member ; Nenes, Athanasios, Committee Member ; Weber, Rodney, Committee Member ; Whetten, Robert, Committee Member ; Wine, Paul H., Committee Chair. Includes bibliographical references.

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36

Lentz, Nicolas. "Metallylene-sulfur compounds : synthesis, characterization and applications in coordination and catalysis." Thesis, Toulouse 3, 2018. http://www.theses.fr/2018TOU30274/document.

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Ce travail présente la synthèse de ligands mixtes germylène-sulfoxyde qui ont été utilisés en chimie de coordination avec plusieurs métaux de transitions et finalement appliqués en catalyse de transfert d'hydrogène. Une seconde partie de ce travail est axée sur la synthèse de nouveaux métallylènes stabilisés par un sulfonimidamide qui ont été appliqués en catalyse de polymérisation. Le premier chapitre présente l'état de l'art des germylènes avec leurs synthèses, modes de stabilisations et finalement leur chimie de coordination et leurs applications en catalyse. Les sulfoxydes seront aussi déc

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37

Björk, Malin. "Synthesis of sulfur and seleniumn heterocycles, including derivatives of imidazopyridine and benzimidazole /." Stockholm, 2005. http://diss.kib.ki.se/2005/91-7140-597-6/.

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38

Blyth, Debra F. "Some studies on the formation and interconversion of iron-sulfur nitrosyl complexes." Thesis, University of St Andrews, 1996. http://hdl.handle.net/10023/15193.

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Studies on the effect of substituting iron(III) for iron(II) or nitrate for nitrite in the reaction of cysteine with iron(II) salts and nitrite with and without sodium ascorbate present demonstrated the formation of the tetranuclear Na[Fe4S3(NO)7] complex when iron(III) is substituted for iron(II), albeit in smaller yield; but no iron-sulfur-nitrosyl clusters were detected when nitrite was replaced with nitrate. Similarly in the case of reaction of methionine with iron(II) salts and nitrite in the presence of sodium ascorbate, the dinuclear complex Fe2(SMe)2(NO)4 is formed in reduced yield whe

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39

Ciaffoni, Luca. "Laser spectroscopy for the detection of volatile sulfur-containing compounds in breath." Thesis, University of Oxford, 2010. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.534154.

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40

Evans, Alan. "Reactions of sulfur with unsaturated compounds to form extreme pressure oil additives." Thesis, Teesside University, 1999. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.411295.

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41

Grabarczyk, Daniel Ben. "Molecular characterisation of bacterial proteins that interact with sulfur or nitrogen compounds." Thesis, University of Oxford, 2014. http://ora.ox.ac.uk/objects/uuid:b6b3e3fd-620f-467d-b063-01311fa7a9a2.

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Many bacteria use inorganic nitrogen and sulfur compounds for energy metabolism. These compounds are often toxic and so bacteria must adapt to survive their deleterious effects. Bacteria use specific proteins in order to metabolise, sense and detoxify these compounds. In this thesis protein interactions with inorganic nitrogen and sulfur compounds are examined at the mechanistic level. Intermediates in the Sox sulfur oxidation pathway are covalently attached to a cysteine on the swinging arm of the substrate carrier protein SoxYZ. An interaction between the Sox pathway enzyme SoxB and the carr

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42

Berlanga, Jesus Alejandro. "Kinetic Modeling of the Atmospheric Photooxidation of Reduced Sulfur and Nitrogen Compounds." TopSCHOLAR®, 2018. https://digitalcommons.wku.edu/theses/2686.

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Atmospheric aerosols encapsulate a wide variety of particles with different compositions, sizes and sources of origin. They also directly and indirectly affect climate by their interactions with sunlight, clouds, atmospheric chemical species, and even other suspended particles. To understand the atmospheric aerosol processes and the effects they have in global and regional climate is of utmost importance for the future establishment of environmental regulations and emission policies that affect aerosol precursor compounds in an effective and beneficial manner. In particular, aerosols are known

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43

SABELLI, RENATO. "Organ sulfur compounds and interactions with the detoxification and redox system enzymes." Doctoral thesis, Università degli Studi di Roma "Tor Vergata", 2010. http://hdl.handle.net/2108/1194.

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Molti composti organici contenenti zolfo (OSCs) ritrovati nell'aglio sono in grado di indurre apoptosi in varie linee tumorali [80]. Recentemente, è stato ritrovato nella fase acquosa dell'aglio bollito il 2-propenil tiosolfato (2-PTS), ed è stato visto essere in grado di indurre apoptosi in più linee tumorali, tramite la produzione di ROS intracellulari [16, 75]. Inoltre, recenti lavori [38, 39, 75] hanno messo in evidenza il fatto che la tioalchenilazione degli enzimi sia una delle cause dell'effetto citotossico di questi composti. Sulla base di ciò è stato valutato l'effetto citotossico de

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44

Jones, Darin E. "Sulfur and oxygen-stablized allylic cations in 4+3 cycloadditions /." free to MU campus, to others for purchase, 1996. http://wwwlib.umi.com/cr/mo/fullcit?p9821328.

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45

Dannecker, Karin Margaret. "EFFECT OF COAL COMPOSITION ON FUEL-NITROGEN MECHANISMS DURING FUEL RICH COMBUSTION (STAGED, POLLUTANTS)." Thesis, The University of Arizona, 1985. http://hdl.handle.net/10150/275302.

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46

Seyedain, Merriam. "A salivary chromogenic assay for periodontitis." Master's thesis, Temple University Libraries, 2011. http://cdm16002.contentdm.oclc.org/cdm/ref/collection/p245801coll10/id/142764.

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Oral Biology<br>M.S.<br>Periodontitis tends to be associated with sulfur-producing bacteria. This study uses a chromogenic sulfur detecting strip to compares whole saliva sulfur (SS) scores in subjects with and without periodontal diseases and examines the relationship between SS scores and clinical measures of periodontal status.Materials & Methods: Ninety-sex subjects were enrolled, mean age (SD) 36.5 (15.42), age range 22 to 82, percent males 52%, percent Caucasians 57%, percent cigarette smokers 33%. Periodontal evaluations including plaque index (PI), gingival index (GI), probing depth me

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47

Martins, Diana Maria Serafim. "Desenvolvimento de eletrodos modificados para determinação de compostos sulfurados em gasolina /." Araraquara : [s.n.], 2008. http://hdl.handle.net/11449/105745.

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Orientador: Nelson Ramos Stradiotto<br>Banca: Maria Del Pilar Taboada Sotomayor<br>Banca: José Fernando de Andrade<br>Banca: Jeosadaque José de Sene<br>Banca: Adaléa Lopes Brandes Marques<br>Resumo: Os compostos sulfurados no petróleo têm causado diversos problemas como os correlacionados à corrosão de equipamentos, envenenamento de catalisadores em processo de refino, qualidade dos produtos, além de liberação de gases tóxicos diretamente ao meio ambiente. Os compostos sulfurados em especial (enxofre elementar, difenil dissulfeto e 1-butanotiol) podem agravar estes problemas, sendo os principa

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48

Dantale, S. W. "Synthesis and modification of sulfur based compounds and their application as anticancer compounds and synthetic applications of solid superacids." Thesis(Ph.D.), CSIR-National Chemical Laboratory, Pune, 1996. http://dspace.ncl.res.in:8080/xmlui/handle/20.500.12252/2828.

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49

Wilson, Craig. "Theoretical studies of reactions of reduced sulfur compounds of importance in the troposphere." Thesis, University of Warwick, 1996. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.263786.

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50

Okbinoğlu, Tülin Nesime. "Electronic structure of sulfur-nitrogen containing compounds : correlations with theory and chemical reactivity." Thesis, University of British Columbia, 2014. http://hdl.handle.net/2429/50408.

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Molecules containing sulfur-nitrogen bonds, such as sulfonamides, have long been of interest due to their many uses and chemical properties, including the potential release of nitric oxide and nitroxyl. Understanding the factors that cause sulfonamide reactivity is crucial, yet their inherent electronic complex- ity have made them difficult to examine. In this thesis, sulfur K-edge x-ray absorption spectroscopy (XAS) is used in conjunction with density functional theory (DFT) to determine the role of electronic transmission effects through the sulfur-nitrogen bond. A systematic deconstruction

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