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Dissertations / Theses on the topic 'Potassium Bromate'

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1

Parsons, Jason Luke. "The mechanism of genotoxicity of potassium bromate." Thesis, University of Birmingham, 2001. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.364521.

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2

Crosby, Lynn Marie. "Studies on Mechanisms of Potassium Bromate-Induced Mesothelial Carcinogenesis in the Male F344 Rat." NCSU, 2000. http://www.lib.ncsu.edu/theses/available/etd-20000509-143301.

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<p>Potassium bromate (KBrO3) is a drinking water disinfection by-product and may represent a health hazard if found to be carcinogenic for humans, as was determined in rats (DeAngelo et al., 1998; Hayashi et al., 1986; Kurokawa, 1985; Kurokawa et al., 1985; Kurokawa et al., 1986a; Kurokawa et al., 1982; Kurokawa et al., 1983a; Kurokawa et al., 1987a; Kurokawa et al., 1983b; Kurokawa et al., 1986b; Ohno et al., 1982; Onodera et al., 1985). The purpose of this research was to determine the mechanism of toxicity. The peritoneal mesothelium is a (rat) target organ of potassium bromate carcinogenic
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3

Crosby, Lynn M. "Studies on mechanisms of potassium bromate-induced mesothelial carcinogenesis in the male F344 rat." Raleigh, NC : North Carolina State University, 2000. http://www.lib.ncsu.edu/etd/public/etd-5032149410021291/etd.pdf.

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4

Hayta, Mehmet. "Thermal transitions in wheat gluten." Thesis, University of Reading, 1999. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.299298.

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5

Vignaud, Caroline. "Etude de systèmes d'oxydoréduction susceptibles de contribuer à la consommation de composés thiols au cours du pétrissage des pâtes de farine de blé." Paris 11, 2002. http://www.theses.fr/2002PA112238.

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Au cours du pétrissage, la consommation des thiols de bas poids moléculaire (BPM) affecte la structure du réseau de gluten, en raison de la participation de ces composés aux réactions d'échanges SH / SS avec les protéines. En panification, récemment, des enzymes fongiques ont été proposées comme alternative plus naturelle à l'emploi des améliorants chimiques (KBrO3, acide ascorbique) pour oxyder ces composés thiols BPM. Dans ce cadre, la sulfhydryle oxydase d'Aspergillus niger a été étudiée et son action a été comparée à celle du KBrO3 et de la glutathion (GSH) déshydrogénase de blé (GSH-DHase
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6

LOUARME, LOIC. "Sujet : etude du mecanisme d'action du bromate de potassium en panification en vue de le remplacer par une oxydoreductase." Paris 11, 2001. http://www.theses.fr/2001PA112093.

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Le bromate de potassium, additif a action lente, qui ameliore le volume des pains, la texture de la mie et augmente la tolerance au procede de panification, est aujourd'hui declare cancerigene. L'objectif de notre travail est d'etudier et de comprendre son mecanisme d'action afin de le remplacer par une ou plusieurs oxydoreductases. Une premiere partie de notre travail a consiste a determiner, en solutions aqueuses, les reducteurs presents dans la farine reagissant avec le bromate. Seuls les composes portant une ou plusieurs fonctions thiols sont oxydes par le bromate. La reaction avec la cyst
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7

Watanabe, Edson. "Effect of potassium bromate and protein disulphide isomerase (E.C. 5.4.3.1.) on the rheology of wheat flour dough assessed by both empirical and oscillatory testing." Thesis, University of Reading, 1992. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.315415.

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8

Alvarenga, Sandra Torres. "Síntese de acetatos de glicerina utilizando sais de bismuto." reponame:Repositório Institucional da UFBA, 2011. http://www.repositorio.ufba.br/ri/handle/ri/10931.

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118 f.<br>Submitted by Ana Hilda Fonseca (anahilda@ufba.br) on 2013-04-11T17:50:31Z No. of bitstreams: 1 Dissertação de Mestrado - PDF[1].pdf: 2378495 bytes, checksum: 988193a81cd9a137da1f1458daa95968 (MD5)<br>Approved for entry into archive by Ana Hilda Fonseca(anahilda@ufba.br) on 2013-05-14T17:22:34Z (GMT) No. of bitstreams: 1 Dissertação de Mestrado - PDF[1].pdf: 2378495 bytes, checksum: 988193a81cd9a137da1f1458daa95968 (MD5)<br>Made available in DSpace on 2013-05-14T17:22:34Z (GMT). No. of bitstreams: 1 Dissertação de Mestrado - PDF[1].pdf: 2378495 bytes, checksum: 988193a81cd9a137da1f145
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9

Charles, Laurence. "Origine de la stabilite et de la population d'agglomerats de sel mono et multicationises du bromate de potassium : une contribution a la comprehension de l'ionisation-desorption par electrospray." Paris 6, 1999. http://www.theses.fr/1999PA066104.

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Des agglomerats cationises de bromate de potassium ont ete etudies en spectrometrie de masse apres ionisation electrospray afin d'essayer de mieux comprendre les processus d'ionisation en solution, les phenomenes de desorption des ions en phase gazeuse a partir des gouttelettes chargees ainsi que leur stabilisation apres desolvatation. Les differents parametres qui, en phase liquide, peuvent conditionner la formation des agglomerats de sel cationises ont ete inventories : la concentration en sel, la nature et la teneur du solvant organique en solution, ainsi que le ph. Un modele issu de l'etat
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10

Walton, Jeffrey Howard. "NMR on single crystals of potassium cyanogen bromide (a measurement of the orientational probability distribution function of the negatively charged cyanogen ion)." W&M ScholarWorks, 1989. https://scholarworks.wm.edu/etd/1539623787.

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Single crystals of K(CN)$\sb{\rm x}$/(Br)$\sb{\rm 1-x}$ enriched in $\sp{15}$N have been studied by $\sp{15}$N NMR. Because of the anisotropic chemical shift, the NMR frequency spectrum of the orientational glass state reflects the distribution of cyanide orientations. By studying the spectrum at many orientations of each crystal, the orientational probability distribution function P($\Omega$) has been determined for x = 0.50 and for x = 0.20. The probability function is largest along the (100) directions, intermediate in the (110) directions, and nearly 0 along the (111) directions. The NMR d
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11

GALANTE, ANA M. S. "Caracterizacao de compostos quimicos para dosimetria das radiacoes em processos industriais." reponame:Repositório Institucional do IPEN, 1999. http://repositorio.ipen.br:8080/xmlui/handle/123456789/10750.

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Made available in DSpace on 2014-10-09T12:43:37Z (GMT). No. of bitstreams: 0<br>Made available in DSpace on 2014-10-09T14:09:45Z (GMT). No. of bitstreams: 1 06646.pdf: 4877971 bytes, checksum: e62f747f9cf9d486a0b537873504da8e (MD5)<br>Dissertacao (Mestrado)<br>IPEN/D<br>Instituto de Pesquisas Energeticas e Nucleares - IPEN/CNEN-SP
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12

OLIVEIRA, LAURA C. de. "Estudo da distribuição de íons e metais em sangue via metodologia nuclear." reponame:Repositório Institucional do IPEN, 2008. http://repositorio.ipen.br:8080/xmlui/handle/123456789/11609.

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Made available in DSpace on 2014-10-09T12:53:49Z (GMT). No. of bitstreams: 0<br>Made available in DSpace on 2014-10-09T13:58:49Z (GMT). No. of bitstreams: 0<br>Tese (Doutoramento)<br>IPEN/T<br>Instituto de Pesquisas Energéticas e Nucleares - IPEN-CNEN/SP
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13

Pham, Van Tuyet. "The synthesis and reactions of chiral 1,3,2-oxazaphospholane derivations : kinetic and mechanistic studies of polyether omega-phase catalyzed reactions of potassium cyanide with benzyl bromide in non-polar, aprotic solvent toluene." Diss., Georgia Institute of Technology, 1987. http://hdl.handle.net/1853/27416.

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14

Marias, Foivos Epameinondas. "Analyse, conception et expérimentation de procédés de stockage thermique résidentiel de longue durée par réaction thermochimique à pression atmosphérique." Thesis, Université Grenoble Alpes (ComUE), 2015. http://www.theses.fr/2015GREAI007/document.

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Les travaux présentés dans ce manuscrit de doctorat s'inscrivent dans la thématique du stockage inter-saisonnier de l'énergie solaire thermique pour l'habitat et le tertiaire (eau chaude sanitaire et chauffage). Le stockage thermochimique en air humide est une des solutions les plus prometteuses, en particulier avec un réacteur à lit fixe. Le bromure de strontium et l'alun de potassium ont été sélectionnés comme réactifs pour leurs caractéristiques énergétiques lors de réactions d'hydratation et de déshydratation. L'étude est constituée d'avancées théoriques, de nombreuses expérimentations et
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15

Bahri, Hamed. "Thermodynamique dans les milieux diphasés dispersés : cas des solutions micellaires et des microémulsions." Paris 6, 1986. http://www.theses.fr/1986PA066280.

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Déduction de relations théoriques générales liant dans les systèmes liquides diphasés, les grandeurs observables "globales" aux grandeurs "locales" dans les différentes phases. Exposé de définitions et de notions thermodynamiques. Etablissement de relations générales pour les grandeurs molaires partielles. Etudes du cas d'un système réel : bromures d'alkyltrimethylammonium en milieu eau-kcl, qui montre que les solutions micellaires en milieu salin concentré peuvent être considérées comme un système diphasé. Données sur le partage d'un soluté moléculaire aniline en milieu micellaire. Etudes des
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16

Chuu, Jiunn-Jye, and 褚俊傑. "Studies on Neurotoxicological Mechanism of Mercury Containing Mineral Medicines and Potassium Bromate." Thesis, 2000. http://ndltd.ncl.edu.tw/handle/37263579862669331749.

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博士<br>國立臺灣大學<br>毒理學研究所<br>88<br>Although the clinical intoxication from the abuse of cinnabar (a natural occurring HgS) and Ba Paul San have been reported, their neurotoxicological mechanisms are still not known. Thus, we attempted to comparatively study their neurotoxicological effects on the vestibular ocular reflex (VOR) system of guinea pigs. The commercial compounds were orally administered (1.0 g / kg/ bw) to guinea pigs once every day for consecutive 7 days. The results obtained showed that HgS at a dose of 1.0g/kg induced a reversible caloric hyperfunction (40% appearance) and irrevers
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17

Aguilar, Ramon Pacheco. "The effect of potassium bromate on the gel-forming ability of Pacific whiting (Merluccius productus) surimi." Thesis, 1989. http://hdl.handle.net/1957/26197.

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The abundance and low fat content of Pacific whiting support Its use for the production of surimi. The degradation of muscle proteins by myxosporidian secreted proteinase(s) has been associated with its soft texture. High residual activity is retained through the washing process used in the production of surimi and precludes the formation of a strong heat-set gel by surimi sols. Physical, chemical and SDS-PAGE analysis defined the reinforced oxidation of free sulfhydryl groups on myofibrillar proteins to disulfide bonds by potassium bromate. SDS-PAGE demonstrated myosin degradation during heat
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18

CARMAN, HOWARD SMITH JR. "MOLECULAR BEAM REACTIONS OF ORIENTED MOLECULES (TRIFLUOROMETHYL BROMIDE, POTASSIUM)." Thesis, 1986. http://hdl.handle.net/1911/15959.

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A beam of oriented CF(,3)Br molecules is prepared by passing a randomly oriented beam through an appropriate series of inhomogeneous and homogeneous electric fields. An atomic K beam crosses the beam of oriented CF(,3)Br and the angular distribution of the reactively scattered KBr is measured with a differential surface ionization detector. The "heads" orientation (Br end closest to the incoming K) is about three-fold more reactive than the "tails" orientation. The KBr is scattered backwards in the "heads" orientation and forward in the "tails" orientation, qualitatively consistent with a "har
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19

Cook, Adrian P. "Acoustic emission from the crystallization of potassium bromide doped with lead." Thesis, 1993. http://hdl.handle.net/2429/1317.

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Simultaneous optical and acoustic information was used to elucidate the mechanism that causes acoustic emission (AE) during growth of potassium bromide (KBr) crystals. The generation mechanism postulated here is one of inter-crystal interaction. AE was used to monitor the growth of different crystal structures of KBr grown with varying degrees of lead (Pb) dopant (0-32000 ppm). Digital images were collected simultaneously at magnifications up to x75. Integrated AE profiles and image whitening curves were calculated. Best agreement between these was found for the crystal growth of the dendritic
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20

Barnes, Michael Dean. "The photoexcitation spectra of transition region species in reactions of potassium + sodium halides (X = chlorine, bromine, iodine)." Thesis, 1991. http://hdl.handle.net/1911/16417.

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The photoexcitation spectra of transition region species formed in bimolecular reactions of K + NaX (X = Cl, Br, I) have been observed by measuring the intensity of sodium D line emission at 589.0 nm as a function of excitation wavelengths between 595 and 640 nm. The portion of the spectrum measured for the K + NaCl system is qualitatively similar to that previously observed by Magurie, et al (MAG86). The spectra obtained for the K + NaBr and NaI systems are significantly different than that of the K + NaCl system, and show a distinct feature centered at approximately 610 nm, and indicate that
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21

Пфафенрод, Ірина Юріївна. "Добування, фізико-хімічні властивості, біологічна активність лікарського засобу «Пертусин» фармацевтичних підприємств України". Магістерська робота, 2020. https://dspace.znu.edu.ua/jspui/handle/12345/3907.

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Пфафенрод І. Ю. Добування, фізико-хімічні властивості, біологічна активність лікарського засобу «Пертусин» фармацевтичних підприємств України : кваліфікаційна робота магістра спеціальності 102 "Хімія" / наук. керівник В. І. Генчева. Запоріжжя : ЗНУ, 2020. 53 с.<br>UA : В роботі 53 сторінки, 1 таблиця, 13 рисунків, було використано 54 літературні джерела, із них 13 іноземною мовою. Об’єкт дослідження ̶ лікарський засіб «Пертусин». Метою даної роботи є ознайомлення з технологією виробництва лікарського засобу «Пертусин», вивчення та перевірки фізико-хімічними показників сиропу та його біоло
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