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Tesi sul tema "Acid"

Autore: Grafiati

Pubblicato: 4 giugno 2021

Ultima modifica: 25 luglio 2025

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1

Mantri, Padmaja. "Arachidonic acid aci-Reductone strategies : asymmetric synthesis of 2-hydroxytetronic acid antimetabolities /." The Ohio State University, 1993. http://rave.ohiolink.edu/etdc/view?acc_num=osu1487848078452092.

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2

Llewelyn, Peter William. "Supported heteropoly acids for acid catalysed reactions." Thesis, Cardiff University, 2011. http://orca.cf.ac.uk/54120/.

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3

Devassy, B. M. "Acid catalysis using zirconia-supported Keggin heteropoly acids." Thesis(Ph.D.), CSIR-National Chemical Laboratory, Pune, 2005. http://dspace.ncl.res.in:8080/xmlui/handle/20.500.12252/2465.

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4

Hinton, Michael Raymond. "Xylaric Acid, D-Arabinaric Acid (D-Lyxaric Acid), L-Arabinaric Acid (L-Lyxaric Acid), and Ribaric Acid-1,4-Lactone ; synthesis and isolation - synthesis of Polyhydroxypolyamides therefrom." [Missoula, Mont.] : University of Montana, 2009. http://etd.lib.umt.edu/theses/available/etd-03212009-142612/unrestricted/Hinton_umt_0136D_10002.pdf.

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Thesis (Ph. D.)--University of Montana, 2009.<br>ETD number: etd-03212009-142612. Author supplied keywords: aldaric acids ; carbohydrates ; MM3 ; oxidation ; polyhydroxypolyamide ; polymers. Description based on contents viewed on June 11, 2009; title from author supplied metadata. Includes bibliographical references.

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5

Kishino, Shigenobu. "Production of conjugated fatty acids by lactic acid bacteria." Kyoto University, 2005. http://hdl.handle.net/2433/86244.

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Kyoto University (京都大学)<br>0048<br>新制・課程博士<br>博士(農学)<br>甲第11617号<br>農博第1473号<br>新制||農||905(附属図書館)<br>学位論文||H17||N4010(農学部図書室)<br>UT51-2005-D366<br>京都大学大学院農学研究科応用生命科学専攻<br>(主査)教授清水昌, 教授加藤暢夫, 教授植田充美<br>学位規則第4条第1項該当

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6

Fang, Bin. "Remobilisation of Heavy Metals from Sediments Using Aminopolycarboxylic Acids." Thesis, The University of Sydney, 2005. http://hdl.handle.net/2123/630.

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This thesis describes a study of the remobilisation of heavy metals from sediments by three aminopolycarboxylic acids (APCAs). They are nitrilotriacetic acid, ethylenediaminetetraacetic acid and diethylenetriaminepentaacetic acid. The investigation is introduced by examining the sources, uses and chemistry of these acids. The introduction also includes a discussion of what is known about the inclusion of heavy metals into sediments and their remobilisation from sediments. Typical concentrations of APCAs in natural waters and sediments have been catalogued from the literature. The advantages an

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7

Fang, Bin. "Remobilisation of Heavy Metals from Sediments Using Aminopolycarboxylic Acids." University of Sydney. Chemistry, 2005. http://hdl.handle.net/2123/630.

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This thesis describes a study of the remobilisation of heavy metals from sediments by three aminopolycarboxylic acids (APCAs). They are nitrilotriacetic acid, ethylenediaminetetraacetic acid and diethylenetriaminepentaacetic acid. The investigation is introduced by examining the sources, uses and chemistry of these acids. The introduction also includes a discussion of what is known about the inclusion of heavy metals into sediments and their remobilisation from sediments. Typical concentrations of APCAs in natural waters and sediments have been catalogued from the literature. The advantages an

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8

Blanco, Élodie. "Catalyseurs phosphates pour la déshydratation de l’acide lactique en acide acrylique." Thesis, Lyon 1, 2014. http://www.theses.fr/2014LYO10222/document.

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Différents phosphates ont été préparés et testés pour la déshydratation de l'acide lactique en phase gaz. La sélectivité en acide acrylique dépend fortement de la température de réaction mais peu du temps de contact. A 380°C, des valeurs de sélectivité allant de 19 à 50% ont été mesurées pour des phosphates alcalino-terreux qui sont stables sur au moins 24 h. Des mesures d'acido-basicité ont montré que ces phosphates contiennent une forte proportion de sites de même force faible. De plus, une corrélation entre la sélectivité en acide acrylique et le ratio molaire acide/base a été établie : ell

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9

Das(, dutta) Sima. "Organotin derivatives of hydroxamic acids derived from dibasic carboxylic acid." Thesis, University of North Bengal, 1989. http://hdl.handle.net/123456789/755.

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10

Levy, Milne Ryna. "Differential metabolism of eicosapentaenoic acid and docosahexaenoic acid." Thesis, National Library of Canada = Bibliothèque nationale du Canada, 1996. http://www.collectionscanada.ca/obj/s4/f2/dsk3/ftp04/NQ56664.pdf.

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11

Chesters, Nicola C. J. E. "Biosynthetic studies on tropic acid and piliformic acid." Thesis, Durham University, 1995. http://etheses.dur.ac.uk/5211/.

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This thesis is divided into two parts and covers biosynthetic studies on two secondary metabolites, tropic acid in Part I and piliformic acid, in Part II.(S)-Tropic acid is the acid moiety of the alkaloids hyoscyamine and scopolamine, which are produced by a number of plants of the Solanacae family. An intriguing rearrangement of the L-phenylalanine side chain gives rise to the isopropanoid (S)-tropic acid skeleton. The detailed nature of the rearrangement has however remained elusive despite continued interest over the years. In chapter two the identification of intermediates between L-phenyl

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12

Wuenschel, Jeffrey Carl Jr. "Effects of Feeding Supplemental Eicosapentanoic Acid and Docosahexanoic Acid to Beef Females on Reproductive Responses and Free Fatty Acids." Thesis, Virginia Tech, 2006. http://hdl.handle.net/10919/34958.

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The objective of this study was to determine the effects of dietary supplementation of eicosapentanoic (EPA) and docosahexanoic acids (DHA) on reproduction in beef females. In experiment 1, cows (n = 31) were individually fed rumen protected fish meal (FM) or no fish meal (C) supplements. Estrus was synchronized and ovulation induced on d 37. Ovarian follicular growth and diameter were determined by ultrasound on d 35 and d 37. Serum progesterone (P4) profiles were analyzed on d 37 through d 52. On d 52 cows were cannulated, primed with estradiol-17β at -240 min, and stimulated to r

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13

Kontos, Christopher D. "The Irreversible Inhibition of D-amino Acid Oxidase with Trans-3-bromoacrylic Acid and Four Others Halo-vinylic Acids." W&M ScholarWorks, 1985. https://scholarworks.wm.edu/etd/1539625302.

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14

Kvasnina, O. V., and A. O. Shapovalenko. "Acid rains." Thesis, Сумський державний університет, 2014. http://essuir.sumdu.edu.ua/handle/123456789/34855.

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Acid rains are harmful precipitations which make us get wet. Acid rains can be in the form of rain, hail or snow. They are very harmful from the ecological, economic and aesthetic point of view. When you are citing the document, use the following link http://essuir.sumdu.edu.ua/handle/123456789/34855

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15

Surucu, Birgul [Verfasser]. "Synthesis of Chlorogenic Acids and Chlorogenic Acid Lactones / Birgul Surucu." Bremen : IRC-Library, Information Resource Center der Jacobs University Bremen, 2012. http://d-nb.info/1035217090/34.

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16

Baughman, Curtis Andrew. "Influence of in vitro elaidic acid or trans-vaccenic acid uptake and lactogenic hormone stimulation on fatty acid content of mouse mammary cells." Thesis, Virginia Tech, 1996. http://hdl.handle.net/10919/45087.

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The objective of the study was to examine the effects of trans-9-octadecenoic acid (elaidic) and trans-II-octadecenoic acid (trans-vaccenic) on uptake and alteration of exogenous fatty acids by mouse mammary epithelial cells. Cells from a subclone of the COMMA-D cell line were plated on uncoated plastic petri dishes and grown to confluence. Supplemental fatty acids bound to bovine serum albumin were added to the medium applied to the confluent cell cultures. Treatments included 200 JlM octadecanoic acid (CI8:0) as a control and 100 JlM CI8:0 with one of the following JlM ratios of cis-octade

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17

Wächter, Simon Fabian [Verfasser]. "Effects of omega-3 fatty acids docosahexaenoic acid and eicosapentaenoic acid and their metabolites in acute inflammation / Simon Fabian Wächter." Berlin : Medizinische Fakultät Charité - Universitätsmedizin Berlin, 2012. http://d-nb.info/103038133X/34.

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18

Mikhailov, Miroslav I. "Acid placement and coverage in the acid jetting process." Thesis, [College Station, Tex. : Texas A&M University, 2007. http://hdl.handle.net/1969.1/ETD-TAMU-1592.

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19

Al-Obaidi, U. "Nitrous acid catalysed nitration of phenols in sulphuric acid." Thesis, University of Exeter, 1986. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.373818.

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20

Cree, Alistair Murray. "Fatigue in boric acid-sulphuric acid anodised aluminium alloys." Thesis, Open University, 2002. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.247058.

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21

Shim, Min Suk. "Molecularly Engineered Acid-Responsive Polymers for Nucleic Acid Delivery." Case Western Reserve University School of Graduate Studies / OhioLINK, 2011. http://rave.ohiolink.edu/etdc/view?acc_num=case1291412851.

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22

Carpenter, Chrissie Ann. "Mannaric acid and mannaric acid polyamides synthesis and characterization /." CONNECT TO THIS TITLE ONLINE, 2008. http://etd.lib.umt.edu/theses/available/etd-12112008-141014/.

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23

Bood, Cecilia. "Acid retardation : recovery and recycling of acid and metal." Thesis, Luleå tekniska universitet, Industriell miljö- och processteknik, 2020. http://urn.kb.se/resolve?urn=urn:nbn:se:ltu:diva-78875.

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During the production of steel, an oxide scale is formed on the surface and to achieve anadequate quality of the surface the scale needs to be removed. Acid pickling is a surfacetreatment where the oxide scale is removed by acid. Over time the amount of dissolved metals in the acid solution increases leading to a decrease in the pickling efficiency, hence the acid solution needs to be renewed. The renewing can be performed by an operation process called acid retardation. In this process, the spent pickling solution passes through a column packed with an ion exchange material, resin. The absorp

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24

Bishop, Michael Jason. "The Application of Weak-Anion Exchange Chromatography for the Analysis of Organic Zwitterions Using LC/MS/MS." Digital Archive @ GSU, 2006. http://digitalarchive.gsu.edu/chemistry_theses/5.

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A rapid and accurate quantitative method was developed and validated for the analysis of four urinary organic acids with nitrogen containing functional groups, formiminoglutamic acid (FIGLU), pyroglutamic acid (PYRGLU), 5-hydroxyindoleacetic acid (5-HIAA), and 2-methylhippuric acid (2-METHIP) by liquid chromatography tandem mass spectrometry (LC/MS/MS). The chromatography was developed using a weak anion-exchange amino column that provided mixed-mode retention of the analytes. The elution gradient relied on changes in mobile phase pH over a concave gradient, without the use of counter-ions or

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25

Nardi, Francesca. "Modulation of skeletal muscle insulin sensitivity and SNAT2 amino acid transporter expression by fatty acid availability." Thesis, University of Dundee, 2015. https://discovery.dundee.ac.uk/en/studentTheses/1dc97813-95d2-4771-9342-a869b6027618.

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26

Iggman, David. "Dietary Fatty Acids and Cardiometabolic Risk : Influence on Lipoproteins, Insulin Resistance and Liver Fat." Doctoral thesis, Uppsala universitet, Klinisk nutrition och metabolism, 2015. http://urn.kb.se/resolve?urn=urn:nbn:se:uu:diva-252066.

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The aim of this thesis was to investigate how dietary fatty acids affect the risk for cardiometabolic disease, i.e. cardiovascular disease (CVD), type 2 diabetes and obesity. The overall hypothesis was that unsaturated fatty acids and especially the predominant polyunsaturated fatty acid (PUFA) linoleic acid (LA), 18:2n-6, would decrease cardiometabolic risk compared with saturated fatty acids (SFAs), in line with current recommendations to partly replace dietary SFA with PUFA. Papers I and V were observational studies based on the community-based cohort Uppsala Longitudinal Study of Adult Men

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27

Nguyen, Van Chuc. "Catalytic production and esterification of aqueous solution of lactic acid." Thesis, Lyon, 2017. http://www.theses.fr/2017LYSE1136.

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Cette thèse porte sur la production d'acide lactique par conversion de la biomasse lignocellulosique catalysée par des acides de Lewis solides dans l'eau puis l'estérification d'acide lactique aqueux avec de l'éthanol. La conversion de la cellulose est étudiée en autoclave, en utilisant comme catalyseurs, de la zircone et de l'alumine contenant du W ou Sn (ZrW, AlSn) et différents hydroxydes métalliques. L'étude de la conversion de la cellulose en acide lactique en présence de ZrW non calcinée, ZrW calcinée, Zr(OH)4 et ZrO2, montre que la phase active du catalyseur est constituée de Zr4+, les

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28

Fleary-Roberts, Nadia. "Towards the total synthesis of domoic acid and the isodomoic acids." Thesis, University of Manchester, 2014. https://www.research.manchester.ac.uk/portal/en/theses/towards-the-total-synthesis-of-domoic-acid-and-the-isodomoic-acids(a32fd085-8e09-47b5-b533-ef259b1ae8a2).html.

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29

Sedehizadeh, Simon. "Towards the total synthesis of domoic acid and the isodomoic acids." Thesis, University of Manchester, 2010. https://www.research.manchester.ac.uk/portal/en/theses/towards-the-total-synthesis-of-domoic-acid-and-the-isodomoic-acids(6a1a5ea8-f5a5-4185-8222-5d3486165ac9).html.

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30

Maisonet, Mildred, Ruby Yadav, and Edward Leinaar. "Role Of Perfluorooctanoic Acid On Serum Fatty Acids, Nhanes, 2003-2004." Digital Commons @ East Tennessee State University, 2015. https://dc.etsu.edu/etsu-works/2.

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Background: Fatty acids (FA) have a role on energy storage and membrane formation. FA consists of an aliphatic chain with varying number of carbon and a carboxylic functional group. Perfluorooctanoic acid (PFOA) exhibits a similar structure to that of the FA. Given their structural resemblance, we hypothesized that alterations in FA metabolism could arise from competition with PFOA for endogenous FA binding sites in transport and with FA binding proteins. Objectives: Explore associations of serum concentrations of perfluorooctanoic acid (PFOA) with serum concentrations of linoleic (LA), eicosa

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31

Kupiainen, L. (Laura). "Dilute acid catalysed hydrolysis of cellulose – extension to formic acid." Doctoral thesis, Oulun yliopisto, 2012. http://urn.fi/urn:isbn:9789526200033.

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Abstract New methods are being sought for the production of chemicals, fuels and energy from renewable biomass. Lignocellulosic biomass consists mainly of cellulose, hemicellulose and lignin. Cellulose and hemicellulose can be converted to their building blocks, i.e. sugars, via hydrolysis. This thesis is focused on glucose production from cellulose by dilute acid hydrolysis. Acid hydrolysis has the drawback of limited glucose yields, but it has the potential to become a short-term solution for biochemical production. During acid hydrolysis, the cellulose chain is split into glucose, which und

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32

Jiang, Shende. "Enantiospecific synthesis of (-)-5-epi-shikimic acid and (-)-shikimic acid." Thesis, Teesside University, 1996. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.411008.

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33

Orozco, Angela Maria. "Dilute acid hydrolysis of municipal solid waste using phosphoric acid." Thesis, Queen's University Belfast, 2008. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.501392.

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34

Agarwal, Shailesh Ramjilal. "Pharmacological modeling and regulation of excitatory amino acid transporters (EAATS)." CONNECT TO THIS TITLE ONLINE, 2007. http://etd.lib.umt.edu/theses/available/etd-09262007-111510/.

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35

Jung, Yun-Kyoung 1979. "Production of conjugated linoleic acid and conjugated linolenic acid by Bifidobacterium breve JKL03 and its application." Thesis, McGill University, 2005. http://digitool.Library.McGill.CA:80/R/?func=dbin-jump-full&object_id=82258.

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Conjugated linoleic acid (CLA) is predominantly found in foods of ruminant origin such as milk and processed cheese, and has gained much interest recently due to its beneficial health and biological effects on animals and humans.<br>The bioconversion of linoleic acid (LA) and linolenic acid (LNA) by a selected Bifidobacterium from healthy infant feces was studied. Bifidobacterium breve JKL03 had the ability to convert linolenic acid (0.2 mg/ml) to CLNA in fermentation of skim milk medium for 24 h up to a yield of 72.0% (up to 74.7% under aerobic conditions) and linoleic acid (0.2 mg/ml)

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36

Wilson, Peter Stanley. "Rediscovering Arsenoacetic Acid." The University of Waikato, 2009. http://hdl.handle.net/10289/2778.

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Arsonoacetic acid, H₂O₃As¹CH₂COOH, and arsenoacetic acid, punitively [AsVCH₂COOH]₂ have been synthesised according to historical literature methods, and have been characterised using modern techniques. Arsonoacetic acid was shown by an X-ray crystal structure analysis to be a molecular species with an extensive hydrogen bonding network in the crystal. Arsenoacetic acid proved to be more enigmatic. Electrospray mass spectra suggested it consisted of a mixtures of rings (RAs)n, n = 3-11, with n = 6 dominating. This was partly confirmed by a crystal structure of (AsCH₂COOH)₆ (as the pyridine solv

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37

Henderson, Laura. "Acid-catalysed hydroaminations." Thesis, Cardiff University, 2010. http://orca.cf.ac.uk/54172/.

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FR901483 was to be synthesised to highlight the applicability of the acid-catalysed hydroamination reaction to natural product synthesis.  FR901483 contains a <italic>spiro</italic>-centre, analogues of which have been successfully synthesised in the Knight group.  A model study showed that the cyclisation should indeed be possible.

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38

Boyd, E. Andrew. "Phosphinic acid synthesis." Thesis, University of Kent, 1990. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.278113.

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39

Beckett, Philip Ronald. "Amino acid oxidation." Thesis, University of Aberdeen, 1989. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.253828.

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The aim of the study was to determine the efficiency with which the carbon skeletons of essential amino acids are utilised by the pig when they are limiting in its diet. This requires the oxidation rate of an amino acid to be measured accurately using a tracer labelled with an isotope of carbon or hydrogen. The use of carbon labelled tracers requires the animal to be enclosed in a sealed chamber for the collection of CO<sub>2</sub>; to avoid this the use of [<sup>3</sup>H]-labelled tracers was investigated. The oxidation rates of [<sup>14</sup>C]-labelled tracers when the tracee was limiting a

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40

Homola, Ondřej. "Acid Drop Age." Master's thesis, Vysoké učení technické v Brně. Fakulta výtvarných umění, 2015. http://www.nusl.cz/ntk/nusl-232447.

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Rutkowski, Piotr. "Acid-catalysed hydroaminations." Thesis, Cardiff University, 2014. http://orca.cf.ac.uk/77061/.

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This thesis describes the use of Brønsted acid catalysis to promote 6-exo-trig cyclisations in the synthesis of N-heterocyclic compounds. In Chapter one, a general overview of alkaloid structures is given, together with a number of general ways for their synthesis, with a particular focus on the Bischler-Napieralski and Pictet-Spengler methods. Hydroamination as a synthetic method is then briefly reviewed to set into context the present project to develop and optimize an acid-catalysed hydroamination method as an alternative protocol to the Picted-Spengler reaction. Chapter two describes diffe

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42

Mangaleswaran, S. "Studies on synthesis of bioactive natural products: tyromycin a, piliformic acid, roccellic acid, byssochlamic acid and isolinderanolide b." Thesis(Ph.D.), CSIR-National Chemical Laboratory, Pune, 2004. http://dspace.ncl.res.in:8080/xmlui/handle/20.500.12252/2874.

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43

Brian, King Himm Mo. "Biochemical analysis and genetic engineering of oleaginous fungi for the production of eicosapentaenoic acid and free fatty acid derivatives." Doctoral thesis, Kyoto University, 2021. http://hdl.handle.net/2433/263714.

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44

Chang, Bong-Kyu. "The solubility and purity of amino acid crystals : II. Preferential incorporation of L-valine over L-leucine into L-isoleucine crystal during the crystallization from HCl solution." Thesis, Georgia Institute of Technology, 2000. http://hdl.handle.net/1853/10951.

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45

Spray, Caroline Ann. "4-ketoproline derivatives as chiral templates in synthesis." Thesis, University of Sussex, 1994. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.239542.

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Abstract (sommario):

(2S)-trans-4-Hydroxyproline has been studied as a chiral template for the preparation of kainoids. Conversion to protected 4-ketoproline derivatives has allowed functionalisation at C-3 to be investigated. Although the tendency to epimerisation has caused problems, we have successfully introduced a variety of alkyl side chains with cis stereochemistry at this position. Functionalisation of the 3-alkyl-4-ketoprolines at C-4 has been investigated and a method has been found to prepare compounds which are functionalised stereospecifically at both C-3 and C-4. These have potential for study as kai

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46

Nachtschatt, Matthias Hannes. "Investigating the structure-function relationships of the ∆5 fatty acid desaturase and the cyclopropane fatty acid synthase." Thesis, Queensland University of Technology, 2019. https://eprints.qut.edu.au/133997/1/Matthias%20Hannes_Nachtschatt_Thesis.pdf.

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Moving from a fossil fuel-based linear economy to a renewable circular economy is a key challenge facing industry, society and our natural environment. An alternative to crude oil derived petrochemicals are oleochemicals that are produced by plants or microorganisms. Matthias's research focused on exploring biochemical tools to create novel oleochemicals as renewable feedstocks for the chemical industry. Specifically, his thesis contributed to our understanding of fatty acid modification processes within biological systems. Matthias's work is a fundamental contribution to further the renewable

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47

Alghamdi, Abdulwahab. "Evaluation of acid fracturing based on the "acid fracture number" concept." Texas A&M University, 2006. http://hdl.handle.net/1969.1/3835.

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Acid fracturing is one of the preferred methods to stimulate wells in carbonate reservoirs. It consists of injecting an acid solution at high enough pressure to break down the formation and to propagate a two-wing crack away from the wellbore. The acid reacts with the carbonate formation and this causes the etching of the fracture surfaces. After the treatment, the created etched surfaces do not close perfectly and that leaves behind a highly conductive path for the hydrocarbons to be produced. We distinguish the issue of treatment sizing (that is the determination of the volume of acid to be

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48

Ebikeme, Charles E. "Amino acid transporters and amino acid metabolism in trypanosoma brucei brucei." Connect to e-thesis, 2007. http://theses.gla.ac.uk/55/.

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Thesis (Ph.D.) - University of Glasgow, 2007.<br>Ph.D. thesis submitted to the Division of Infection and Immunity, Institute of Biomedical and Life Sciences, University of Glasgow, 2007. Includes bibliographical references.

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49

Ebikeme, Charles E. "Amino acid transporters & amino acid metabolism in Trypanosoma brucei brucei." Thesis, University of Glasgow, 2007. http://theses.gla.ac.uk/55/.

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Abstract (sommario):

The development of new drugs against Human African Trypanosomiasis is much needed due to toxicity, efficacy and availability problems with current drug treatments for this resurgent parasitic disease. Delivery of drugs into cells is an important determinant of therapeutic efficacy of drugs. An effective means of selective drug delivery is to use plasma membrane transport systems to mediate the entry of drugs into the cell. Some amino acid transporters fulfil the criteria needed for successful exploitation of nutrient transport systems for drug delivery. The Trypanosoma brucei genomic database

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50

McMullan, E. A. "The electrochemical reduction of carbon dioxide, glyoxylic acid and oxalic acid." Thesis, University of Ulster, 1985. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.356452.

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