Rozprawy doktorskie na temat „Speciation”
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Venditti, Christopher D. "Speciation and molecular evolution". Thesis, University of Reading, 2007. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.493810.
Pełny tekst źródłaBranch, Simon. "Arsenic speciation in food". Thesis, University of Plymouth, 1990. http://hdl.handle.net/10026.1/2138.
Pełny tekst źródłaHurford, Simon Ronald. "Speciation and trace metals". Thesis, Cardiff University, 1989. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.276927.
Pełny tekst źródłaChow, Stephanie S. Wold Barbara J. "Speciation in digital organisms /". Diss., Pasadena, Calif. : California Institute of Technology, 2005. http://resolver.caltech.edu/CaltechETD:etd-06062005-171257.
Pełny tekst źródłaPennings, Pleuni. "Models of adaptation and speciation". Diss., lmu, 2007. http://nbn-resolving.de/urn:nbn:de:bvb:19-66567.
Pełny tekst źródłaMontilla, Alfonso. "Sample treatment for arsenic speciation". Thesis, National Library of Canada = Bibliothèque nationale du Canada, 1999. http://www.collectionscanada.ca/obj/s4/f2/dsk1/tape2/PQDD_0010/MQ60154.pdf.
Pełny tekst źródłaJarratt, Jason Aldrin. "Validation of chemical speciation models". Thesis, Manchester Metropolitan University, 1998. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.263802.
Pełny tekst źródłaMorrison, Gregory Mark. "Metal speciation in urban runoff". Thesis, Middlesex University, 1985. http://eprints.mdx.ac.uk/6559/.
Pełny tekst źródłaDean, Laura L. "Speciation in three-spined stickleback". Thesis, University of Nottingham, 2018. http://eprints.nottingham.ac.uk/52951/.
Pełny tekst źródłaYodle, Chan. "Iodine speciation in marine aerosol". Thesis, University of East Anglia, 2015. https://ueaeprints.uea.ac.uk/56772/.
Pełny tekst źródłaHawkes, Jeffrey Alistair. "Iron speciation in hydrothermal plumes". Thesis, University of Southampton, 2013. https://eprints.soton.ac.uk/359134/.
Pełny tekst źródłaIrwin, Darren E. "Ring speciation in Asian warblers /". Diss., Connect to a 24 p. preview or request complete full text in PDF format. Access restricted to UC campuses, 2000. http://wwwlib.umi.com/cr/ucsd/fullcit?p9984301.
Pełny tekst źródłaSulaiman, Azli Bin. "New approaches to elemental speciation". Thesis, Loughborough University, 1996. https://dspace.lboro.ac.uk/2134/25760.
Pełny tekst źródłaHinojosa, Galisteo Joan Carles 1993. "Exploring the butterfly speciation continuum : A study on butterfly speciation in the transition to genomic techniques". Doctoral thesis, Universitat Pompeu Fabra, 2021. http://hdl.handle.net/10803/672348.
Pełny tekst źródłaLes papallones són un dels animals més ben estudiats però, malgrat els esforços dedicats a la seva recerca, el coneixement que tenim sobre la seva diversitat i sobre els mecanismes que la generen és encara incomplet. Per tal d'entendre com les papallones diversifiquen, s'ha examinat el continu de l'especiació en sis casos mitjançant l'ús de la morfometria i de diverses tècniques genètiques (des de la seqüenciació de marcadors específics fins a la genòmica). L'anàlisi de la variació fenotípica i genètica combinada amb evidències sobre el flux genètic ha permès identificar els estats del continu de l'especiació, i.e. l'estudi de les relacions entre poblacions. Aquesta aproximació s'ha usat com a marc (1) per fer hipòtesis taxonòmiques fonamentades i (2) per extreure pistes sobre els mecanismes que dirigeixen l'especiació. Com a resultat, hem descrit i proposat diversos casos de tàxons que havien passat desapercebuts o que s'havien dividit excessivament. Documentem l'existència de tres tipus de mecanismes productors de diversitat en papallones: deriva, selecció i hibridació. La selecció actuà mitjançant l'adaptació a factors ambientals biòtics, que causaren desplaçament de caràcters reproductius, canvi de planta nutrícia i a\ll ocronia produïda per l'adaptació al període de floració de la planta nutrícia. Addicionalment, les tècniques genètiques emprades són avaluades i els seus avantatges i inconvenients discutits.
Hlinka, Vojtech. "Genetic speciation of archaeological fish bones /". St. Lucia, Qld, 2003. http://www.library.uq.edu.au/pdfserve.php?image=thesisabs/absthe17168.pdf.
Pełny tekst źródłaSmith, D. Scott. "Metal speciation determined using multiresponse fluorescence". Thesis, National Library of Canada = Bibliothèque nationale du Canada, 1999. http://www.collectionscanada.ca/obj/s4/f2/dsk1/tape8/PQDD_0030/NQ66237.pdf.
Pełny tekst źródłaMatni, Gisèle. "Speciation of selenium in food supplements". Thesis, McGill University, 1996. http://digitool.Library.McGill.CA:80/R/?func=dbin-jump-full&object_id=40393.
Pełny tekst źródłaSelective isolation and HPLC-AAS protocols were also developed and optimized for the determination of free organic forms e.g. selenomethionine (SeMet), selenocystine (SeCystine) and inorganic forms of selenium in aqueous solutions, and in complex matrices such as nutritional supplements and mixtures of free amino acids. The selenoamino acid in alkaline solution was first derivatized with 1-fluoro-2,4-dinitrobenzene. After removal of excess of reagent by partitioning with diethyl ether, the N-dinitrophenyl (DNP)-derivatized selenoamino acid was acidified and extracted with diethyl ether. Inorganic Se(IV) was extracted from the acidic aqueous phases by complexation with 1,2-phenylenediamine, forming a piazselenol. Se derivatives were determined selectively by HPLC-THG-AAS. A selective chromatographic mechanism based on $ pi$-electron interactions was optimized using a silica stationary phase derivatized with p-nitrophenyl moieties. Co-injections of DNP-SeMet, DNP-SeCystine and piazselenol save retention times of 3.7, 4.0 and 4.9 min, respectively, using a methanolic mobile phase containing 1.5% triethylamine and 0.013M acetic acid. Primary analytical validation parameters including stability, linearity and limits of detection were obtained using purified DNP-SeMet, DNP-SeCystine and piazselenol standards which were characterized by $ sp1$H-, $ sp{13}$C- and $ sp{77}$Se-NMR analysis and/or fast atom bombardment MS techniques. The calibration graphs for sequential dilutions of these Se standards were linear and the limits of detection from the resultant calibration graphs were 17 ng, 0.21 ng and 18.53 ng of Se, respectively. The purified DNP-SeMet and DNP-SeCystine were found to be photosensitive. The recovery of SeMet, SeCystine and inorganic Se from the stock solutions and/or nutritional supplements was virtually quantitative. In the presence of a 500-fold excess of other amino acids, the recovery of SeMet and SeCystine (96.1 $ pm$ 3.9% and 98.08 $ pm$ 4.2%, respec
Dundar, Mustafa Sahin. "Speciation studies on dietary trace elements". Thesis, University of Hull, 1996. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.337335.
Pełny tekst źródłaRosser, N. S. "Speciation and biogeography of heliconiine butterflies". Thesis, University College London (University of London), 2013. http://discovery.ucl.ac.uk/1386054/.
Pełny tekst źródłaMcKenzie, Andy. "Stochastic speciation models for evolutionary trees". Thesis, University of Canterbury. Mathematics and Statistics, 2000. http://hdl.handle.net/10092/5597.
Pełny tekst źródłaSimpson, Stuart L. "Speciation of aluminium in environmental systems". Thesis, University of Canterbury. Chemistry, 1996. http://hdl.handle.net/10092/6704.
Pełny tekst źródłaHilscher, Rainer. "Agent based models of competitive speciation". Thesis, University of Sussex, 2005. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.413887.
Pełny tekst źródłaFindlow, James Andrew. "Chemical speciation of aluminium in milk". Thesis, Cardiff University, 1989. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.329705.
Pełny tekst źródłaBull, Vanessa Jane. "Genealogy and speciation in Heliconius butterflies". Thesis, University College London (University of London), 2003. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.408421.
Pełny tekst źródłaAchterberg, Eric Pieter. "Trace metal speciation in natural waters". Thesis, University of Liverpool, 1993. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.359194.
Pełny tekst źródłaHayward, John. "Models of speciation by sexual selection". Thesis, University of Cambridge, 1995. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.364220.
Pełny tekst źródłaAborode, Fatai Adigun. "Selenium and arsenic speciation in plants". Thesis, University of Aberdeen, 2013. http://digitool.abdn.ac.uk:80/webclient/DeliveryManager?pid=201647.
Pełny tekst źródłaLum, Tsz Shan. "Elemental imaging and speciation for bioanalysis". HKBU Institutional Repository, 2016. https://repository.hkbu.edu.hk/etd_oa/328.
Pełny tekst źródłaDerbyshire, Michelle. "Speciation of chromium in environmental matrices". Thesis, Sheffield Hallam University, 2001. http://shura.shu.ac.uk/19556/.
Pełny tekst źródłaShaw, Philip Neil. "Studies on cobalt speciation in groundwaters". Thesis, Loughborough University, 1990. https://dspace.lboro.ac.uk/2134/32076.
Pełny tekst źródłaKim, Dae Ji. "Tritium speciation in nuclear decommissioning materials". Thesis, University of Southampton, 2009. https://eprints.soton.ac.uk/72145/.
Pełny tekst źródłaTabatchnick, Melissa Danielle. "Mercury Speciation in Temperate Tree Foliage". Wright State University / OhioLINK, 2010. http://rave.ohiolink.edu/etdc/view?acc_num=wright1284516685.
Pełny tekst źródłaPapadopulos, Alexander Savas Thomas. "Plant speciation on Lord Howe Island". Thesis, Imperial College London, 2011. http://hdl.handle.net/10044/1/7069.
Pełny tekst źródłaFitzpatrick, Benjamin Minault. "Speciation and barriers to gene flow /". For electronic version search Digital dissertations database. Restricted to UC campuses. Access is free to UC campus dissertations, 2004. http://uclibs.org/PID/11984.
Pełny tekst źródłaEbuele, Victor Pghogho. "Phosphorus speciation in soil and plants". Thesis, Bangor University, 2016. https://research.bangor.ac.uk/portal/en/theses/phosphorus-speciation-in-soil-and-plants(c9a2b08e-cca7-48ad-ac49-79b772d17602).html.
Pełny tekst źródłaHilgenböcker, Kirsten. "Wolbachia's role in classical speciation theory". Doctoral thesis, Humboldt-Universität zu Berlin, Mathematisch-Naturwissenschaftliche Fakultät I, 2009. http://dx.doi.org/10.18452/16020.
Pełny tekst źródłaWolbachia are intracellular bacteria that commonly infect arthropod species. Since they often induce a cytoplasmic mating incompatibility (CI) in their hosts that acts as a postzygotic isolating mechanism between differently infected individuals of one species, Wolbachia have received attention as a potential promoter of arthropod speciation processes. Previous studies on speciation focused on either Wolbachia-induced or the classical nuclear-based postzygotic isolating mechanism. However, it should usually be the case that both co-occur. This thesis continues investigations on Wolbachia''s role in speciation by analyzing interactions of Wolbachia-induced CI and nuclear incompatibility (NI) caused by genetic differentiation. We will show that Wolbachia have strong impact on nuclear-based speciation processes. In particular, synergy effects can occur when both isolating mechanisms act simultaneously. Furthermore, we show that Wolbachia can influence speciation processes under more general conditions than previous studies on Wolbachia''s role in speciation suggested. Since the actual role of Wolbachia in arthropod speciation will strongly depend on their abundance, we present a statistical meta-analysis of published data on Wolbachia infection frequencies. Due to the sampling methods applied in studies on Wolbachia infection frequencies, it is likely that current estimates of 20% infected species are underestimates. This is supported by our analysis and we show that more likely about two-thirds of species are infected. Combining both results, this thesis provides strong evidence for Wolbachia being a very general factor in arthropod speciation processes.
Georgiadis, Myron. "Arsenic Speciation in Soils and Sediments". FIU Digital Commons, 2004. https://digitalcommons.fiu.edu/etd/3579.
Pełny tekst źródłaPeñalba, Joshua Villapa. "Speciation Genomics in Australian Meliphagoid Birds". Phd thesis, Canberra, ACT : The Australian National University, 2017. http://hdl.handle.net/1885/141395.
Pełny tekst źródłaHatchett, William. "The road toward sympatric speciation in whitefish. : The effects of divergent selection on European whitefish (Coregonus lavaretus) size and behavior, and effects on zooplankton communities". Thesis, Umeå universitet, Institutionen för ekologi, miljö och geovetenskap, 2015. http://urn.kb.se/resolve?urn=urn:nbn:se:umu:diva-110741.
Pełny tekst źródłaParler, Nichole Erin. "Mercury concentration and speciation in coastal rainwater /". Electronic version (PDF), 2005. http://dl.uncw.edu/etd/2005/parlern/nicholeparler.html.
Pełny tekst źródłaOzato, Kenjiro. "Mutagenesis, speciation, and genome analysis in medaka". Laboratory of Freshwater Fish Stocks Bioscience Center Nagoya University, 1994. http://hdl.handle.net/2237/13793.
Pełny tekst źródłaHasegawa, Hiroshi. "Seasonal Changes in Arsenic Speciation in Hydrosphere". 京都大学 (Kyoto University), 1997. http://hdl.handle.net/2433/202482.
Pełny tekst źródłaEdwards, Danielle L. "Biogeography and speciation of southwestern Australian frogs". University of Western Australia. School of Animal Biology, 2007. http://theses.library.uwa.edu.au/adt-WU2008.0058.
Pełny tekst źródłaWang, Hongjun. "Labile speciation studies using electrospray mass spectrometry". Thesis, National Library of Canada = Bibliothèque nationale du Canada, 1998. http://www.collectionscanada.ca/obj/s4/f2/dsk2/ftp01/MQ37657.pdf.
Pełny tekst źródłaAdams, Nicholas. "Chemical speciation of silver(I) in freshwater". Thesis, National Library of Canada = Bibliothèque nationale du Canada, 1999. http://www.collectionscanada.ca/obj/s4/f2/dsk1/tape8/PQDD_0027/NQ50978.pdf.
Pełny tekst źródłaGelting, Johan. "Trace metal speciation in the Baltic sea". Licentiate thesis, Luleå : Luleå tekniska universitet/Tillämpad kemi och geovetenskap/Tillämpad geologi, 2006. http://epubl.ltu.se/1402-1757/2006/74/LTU-LIC-0674-SE.pdf.
Pełny tekst źródłaJianping, Lin. "Iodine speciation in the Yarra River estuary /". Connect to thesis, 1992. http://eprints.unimelb.edu.au/archive/00000216.
Pełny tekst źródłaPadmavathiamma, Prabha Kumari. "Phytoremediation and metal speciation in highway soils". Thesis, University of British Columbia, 2010. http://hdl.handle.net/2429/23479.
Pełny tekst źródłaBryan, Stephen Edward. "Testing models of chemical speciation n freshwaters". Thesis, Lancaster University, 2001. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.249809.
Pełny tekst źródłaLofts, Stephen. "Modelling chemical speciation in the natural environment". Thesis, Lancaster University, 2003. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.421627.
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