86,778 research outputs found
High-resolution and time-resolved absorption and fluorescence studies on proton transfer
Full text linkGooijer, C. [Promotor]Ariese, F. [Copromotor
Advances in Analytical Resonance Raman Spectroscopy
Full text linkGooijer, C. [Promotor]Ariese, F. [Copromotor
Raman Spectroscopy as a Potential Method for the Detection of Life Signatures
Full text linkDavies, G.R. [Promotor]Gooijer, C. [Promotor]Ariese, F. [Copromotor
Time-Resolved Raman Spectroscopy for depth analysis in scattering samples
Full text linkGooijer, C. [Promotor]Ariese, F. [Copromotor
High-resolution fluorescence analysis of polycyclic aromatic hydrocarbon derived adducts to DNA and proteins
No full textSpectroscopy at the nanometer scale: Towards nanoscale chemical and physical surface characterization
Full text linkIannuzzi, D. [Promotor]Ariese, F. [Copromotor]Mank, A.J.G. [Copromotor
Trace-level determination of flavonoids and their conjugates: application to plants of the Leguminosae family
Full text linkThe research described in the dissertation is part of the project 'Wetlands in the Randstad', a cooperation between the Faculty of Earth and Life Sciences, the Faculty of Exact Sciences, the Faculty of Economics and the Institute of Environmental Studies of the Free University Amsterdam, which focuses on the effects of flooding or 'vernatting' of polder and wetland areas in the densely populated Randstad area of the Netherlands, to restore their ecological value. The aim of the research was to develop adequate methods of analysis for flavonoids including their conjugates in complex matrices, in particular wetland plants. In the end, these methods were used to study the potential of flavonoids as indicators for ecological changes due to vernatting. The flavonoids were selected because they are chemically well-defined compounds and as secondary metabolites they play an important role in plants as defence and signalling compounds in e.g. reproduction, pathogenesis and symbiosis. Furthermore, they possess chromophoric groups so that they can be studied by UV/Vis spectrometry and exhibit useful fragmentation in mass spectrometry; some flavonoids show native fluorescence. In this dissertation, flavonoids in plants of the Leguminosae family, which commonly occur in Dutch wetland areas, are studied using various hyphenated analytical methods. The study comprises (i) optimization of extraction procedures, with emphasis on the stability of selected flavonoids; (ii) research on UV absorbance, fluorescence and NMR spectroscopy as well as (tandem) mass spectrometry of flavonoids in order to find optimal detection conditions and, as a first application, (iii) a study of the effect of vernatting which focuses on the behaviour of the main flavonoids in the leaves of red clover (T. pratense) under waterlogging conditions.Brinkman, U.A.Th. [Promotor]Gooijer, C. [Promotor]Ariese, F. [Copromotor
Variations on the Author
Full text link“Variations on the Author” discusses two of Eduardo Coutinho’s recent films (Um Dia na Vida, from 2010, and Últimas Conversas, posthumously released in 2015) and their contribution to the general question of documentary authorship. The director’s filmography is characterized by a consistent yet self-effacing form of authorial self-inscription: Coutinho often features as an interviewer that rather than express opinions propels discourses; an interviewer that is good at listening. This mode of self-inscription characterizes him as an author who is not expressive but who is nonetheless markedly present on the screen. In Um Dia na Vida, however, Coutinho is completely absent form the image, while Últimas Conversas, on the contrary, includes a confessional prologue that moves the director from the margins to the center of his films. This article examines the ways in which these works stand out in the filmography of a director who offers new insights into the notion of cinematic authorship
Liquid-phase cavity ring-down spectroscopy for improved analytical detection sensitivity
Full text linkUbachs, W.M.G. [Promotor]Gooijer, C. [Promotor]Ariese, F. [Copromotor
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