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  • About
  • The Global ETD Search service is a free service for researchers to find electronic theses and dissertations. This service is provided by the Networked Digital Library of Theses and Dissertations.
    Our metadata is collected from universities around the world. If you manage a university/consortium/country archive and want to be added, details can be found on the NDLTD website.
201

Characterization and ¹H-NMR Applications of hexaaza macrocyclic complexes of lanthanides /

DiSano, Mary. January 1989 (has links)
Thesis (M.S.)--Rochester Institute of Technology, 1989. / Includes bibliographical references (leaves 62-64).
202

Reductive aldol cyclizations using Stryker's reagent and polystyrene-supported triphenylarsine in carbon-carbon bond forming reactions

Lau, Chi-yin, January 2007 (has links)
Thesis (Ph. D.)--University of Hong Kong, 2008. / Also available in print.
203

Plasminogen activator inhibitor type-1 : structure-function studies and its use as a reference for intramolecular distance measurements /

Hägglöf, Peter, January 2003 (has links)
Diss. (sammanfattning) Umeå : Univ., 2004. / Härtill 4 uppsatser.
204

Programmed cell death induced by perturbing the function of arabinogalactan-protein by Yariv reagent /

Chen, Ming. January 2004 (has links)
Thesis (Ph. D.)--Ohio University, March, 2004. / Includes bibliographical references (leaves 158-181).
205

Synthese van allenylmetaal-reagentia en hun regioselectieve omzetting in functioneel gesubstitueerde allenen, alkynen en enige heterocycli Synthesis of allenymetal reagents and their regioselective conversion into functionally substituted allenes, alkynes, and some heterocycles /

Ruitenberg, Klaas, January 1983 (has links)
Thesis (doctoral)--Rijksuniversiteit te Utrecht, 1983. / Summary in English. Spine title: Allenylmetaal-reagentia en hun omzetting in allenen, allynen en enige heterocycli. Additional references inserted. Description based on print version record. Includes vita and bibliographies.
206

Effects of the lipid peroxidation product 4-hydroxy-2-nonenal on protein degradation and refolding pathways /

Carbone, David L. January 2005 (has links)
Thesis (Ph.D. in Toxicology) -- University of Colorado at Denver and Health Sciences Center, 2005. / Typescript. Includes bibliographical references (leaves 128-138).
207

Detection of polypeptide interactions via periodate triggered dopa crosslinking

Burdine, Lyle Jackson. January 2006 (has links)
Thesis (Ph.D.) -- University of Texas Southwestern Medical Center at Dallas, 2006. / Not embargoed. Vita. Bibliography: 129-137.
208

Desenvolvimento de métodos quantitativos e de sistemas de screening para a determinação de glifosato

Silva, Aline Santana da [UNESP] 28 February 2012 (has links) (PDF)
Made available in DSpace on 2014-06-11T19:35:06Z (GMT). No. of bitstreams: 0 Previous issue date: 2012-02-28Bitstream added on 2014-06-13T20:26:01Z : No. of bitstreams: 1 silva_as_dr_araiq.pdf: 2860868 bytes, checksum: 0a5366c12c615d912dea72ff05ef8e46 (MD5) / Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES) / O produto comercial Roundup®, contendo o glifosato como principal ingrediente ativo, é vendido mundialmente por ser um herbicida sistêmico, pós-emergente e não seletivo. Além disso, a alta eficiência no processo de remoção de plantas indesejadas e o aumento de culturas transgênicas favorecem seu uso extensivo. Embora não seja considerado um sério contaminante para o homem, o controle e monitoramento destes herbicidas são muito importantes. Desta forma, o presente projeto propõe o desenvolvimento de sistemas de screening e métodos analíticos limpos que possam ser aplicados à determinação de glifosato, uma vez que a literatura dispõe de poucos métodos de análise que visam à aplicação dos princípios da Química Verde. Os métodos propostos neste estudo foram espectroscopia de reflectância difusa, espectrofotometria e sistemas em fluxo, empregando análise por injeção em fluxo (FIA) e multi-bombas (MPFS), com detecção na região do UV-Vis. Os métodos de análise propostos são baseados na reação entre glifosato e p-dimetilaminocinamaldeído (p- DAC), em meio acidificado, com um máximo de reflecção ou absorção em 495 nm. Após a otimização das condições experimentais e validação dos métodos propostos, através de parâmetros como linearidade da curva analítica, exatidão, precisão, limite de detecção, limite de quantificação, recuperação e estudos de possíveis íons interferentes, estes foram aplicados em amostras de herbicidas comerciais e águas (naturais e de consumo humano). Os resultados obtidos na determinação de glifosato nas amostras de herbicidas comerciais empregando reflectância difusa concordaram com os resultados obtidos empregando análise por injeção em fluxo, os quais apresentaram teores de 378,8 g L-1 para a amostra A, 392,4 g L-1 para a amostra... / The commercial product Roundup®, containing the glyphosate as its main active ingredient, is marketed worldwide because it is a nonsystemic, post-emergent and nonselective herbicide. Moreover, the high efficiency in the process of the removal of unwanted plants and the increase in the introduction transgenic plants favor their extensive use. Although it has not been considered a serious contaminant to humans the control and monitoring of this herbicide are very importants. The present project proposes the development of screening systems and clear analytical methods that can be applied to determine the presence of glyphosate, since in the literature there are few methods of analysis that apply Green Chemistry’s principles. The proposed methods in this study were diffuse reflectance spectroscopy, spectrophotometry and flow systems, employing flow injection analysis (FIA) and multi-pumping (MPFS), with detection in the Uv-vis region. The proposed analysis methods are based in the reaction between glyphosate and p-dimethylaminocinnamaldehyde (p-DAC), in acid medium, it presents a reflection or absorption maximum in 495 nm. After the optimization of the experimental conditions and validation of the proposed methods, through parameters such as: linearity of the analytical curve, accuracy, precision, limit of detection, limit of quantification, recovery and study of possible interference ions, these were applied to commercial herbicides and water samples (naturals and for human consumption). The results obtained in the determination of glyphosate in the commercial herbicides employing diffuse reflectance were agree with the results obtained by employing flow injection analysis, which presented levels of 378.8 g L-1 to the A sample, 392.4 g L-1 to the B sample and 330.6 g L-1 to the C sample... (Complete abstract click electronic access below)
209

Separacao de radioimunoensaios em fase magnetica, com particulas preparadas no IPEN e sua comparacao com as metodologias convencionais

ARAUJO, EMERSON A. de 09 October 2014 (has links)
Made available in DSpace on 2014-10-09T12:36:31Z (GMT). No. of bitstreams: 0 / Made available in DSpace on 2014-10-09T13:59:25Z (GMT). No. of bitstreams: 1 04132.pdf: 2205877 bytes, checksum: acad778365e22c1171a5abf7b55b03f2 (MD5) / Tese (Doutoramento) / IPEN/T / Instituto de Pesquisas Energeticas e Nucleares - IPEN/CNEN-SP
210

Uso de tracadores radioativos em reacoes quimicas .Deslocamento de complexos zinco-niquel com determinacao quantitativa de niquel

PACI, BARBARA 09 October 2014 (has links)
Made available in DSpace on 2014-10-09T12:26:07Z (GMT). No. of bitstreams: 0 / Made available in DSpace on 2014-10-09T14:06:44Z (GMT). No. of bitstreams: 1 00450.pdf: 980860 bytes, checksum: 2674524e39efd960b6ed9a32c90d8c2f (MD5) / Dissertacao (Mestrado) / IEA/D / Instituto de Energia Atomica - IEA

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