The chemical and structural heterogeneity of toxoid vaccines makes their analysis challenging. However, detailed insights on a molecular level can be obtained by mass spectrometry.

In 2015 bestaat de studiefinanciering tweehonderd jaar. Bij Boom uitgevers Amsterdam is een fraai vormgegeven overzichtswerk verschenen over twee eeuwen studiefinanciering.

Promotor: Prof.dr. T. Hankemeier, Co-promotor: Theo Reijmers

Promotor: T. Hankemeier, Co-promotor: T.H. Reijmers

My work focuses on a class of astronomical objects called protoplanetary disks.

Promotor: Prof.dr. E.F. van Dishoeck

Metabolomics is a powerful tool that can provide a comprehensive insight into the complexity of human biology and the pathophysiology of diseases. By analyzing the metabolome, which refers to the complete set of small (endogenous) molecules (with a mass <1500 Da) present within a given biological system,…

Promotor: Prof.dr. K.H. Kuijken, Co-Promotor: H.Hoekstra

Promotor: Prof.dr. T. Hankemeier

Promotor: Koen Kuijken Co-promotor: Henk Hoekstra

This thesis aims to enhance our understanding of galaxies by testing theoretical models of galaxy formation against observations, particularly in the cases of extreme systems which have been found to have an excess of baryonic mass in their central regions, in the form of either supermassive black holes…

Promotor: T. Hankemeier, Co-Promotores: T. Reijmers, L. Coulier

Promotores: Prof.dr. H.J.M. de Groot, Prof.dr. J. Matysik (Universitaet Leipzig)

Promotor: Prof.dr. E.F. van Dishoeck, Co-Promotor: G.J. Herczeg

This thesis investigates the structural evolution and assembly of galaxies since the first few billions years after the big bang.

Climate change is a challenge for both current and future generations. New biological resources have to be developed in order to meet the demand for energy as well as the demand for food.

Op 9 juni 2021 verdedigde Bahaddin Budak succesvol zijn proefschrift en promoveerde.

Promotie

Light-Harvesting Complex II (LHCII) is responsible for light absorption and excitation energy transfer in plants and photosynthetic algae, while in high light it undergoes conformational changes by which it quenches excitations to prevent photodamage.

Promotor: Prof.dr. E.F. van Dishoeck, Prof.dr. F.F.S. van der Tak (RUG)

De Leidse astronoom Anthony Brown had de eer om de prestigieuze Spitzer Lectures te geven aan de Princeton Universiteit. In vijf lezingen verspreid over begin mei gaf hij een inzicht in de Gaia-missie. ‘Een van de intellectuele hoogtepunten van het jaar.’

De Leidse astronoom Anthony Brown prijkt in Nature’s 10: de lijst met tien mensen die er volgens het wetenschappelijke tijdschrift toe deden in de wetenschap in 2018. Brown werkt achter de schermen als coördinator van Gaia, waarvan hij dit jaar de langverwachte data over de Melkweg publiceerde.

Sterrenkundigen Ignas Snellen en Anthony Brown stonden met hun recentste ontdekking in De Telegraaf van 22 augustus. Ze wisten de massa van de pasgeboren exoplaneet Beta Pictoris b te bepalen. Hun ontdekking, die een publicatie opleverde in het blad Nature Astronomy, was zelfs het 'Nieuws van de dag…

Advanced mass spectrometry of glycosphingolipids takes the central stage in this thesis. Investigations focus on characterization of glycosphingolipid metabolism in health and disease with emphasis to the detection and accurate quantitation of known and so far unknown glycosphingolipids and closely…

Low-mass main-sequence stars like our Sun are continuous sources of outflowing hot magnetised plasma. In the case of the Sun, this is known as the solar wind, whereas for other stars they are called stellar winds.

Promotor: Prof.dr. S.F. Portegies Zwart

De nieuwe, gigantische dataset uit de Europese Gaia-telescoop deed heel wat (sterren)stof opwaaien. Details van 1,6 miljard sterren, zo'n tien miljoen sterrenstelsels en bijna 160.000 asteroïden zijn erin te vinden. Hoofd van het datateam van vijfhonderd mensen is de Leidse sterrenkundige Anthony Brown.…

Aan het einde van de achttiende en het begin van de negentiende eeuw was Teylers Museum het belangrijkste onderzoeksinstituut van ons land voor kunsten en wetenschappen. In de twintigste eeuw werd zelfs ‘s werelds meest toonaangevende fysicus, de Leidse hoogleraar Hendrik Antoon Lorentz aangetrokken.…

In this thesis chemical and physical processes in the ice mantles on interstellar dust grains are studied.

Promotor: A.P. IJzerman

Promotor: A.P. IJzerman

Multiple stars, that is two or more stars composing a gravitationally bound system, are common in the universe.

This thesis focus on the interaction between M dwarf stellar winds and Galactic cosmic rays and the possible effects on the habitability of exoplanets.

Promotor: T. Hankemeier, Co-promotor: R.J. Vreeken

Alumna Simay Çetin heeft de Speckmann prijs gewonnen voor haar masterscriptie 'Interpreting Culture through Embodied Practice: An anthropological study of sexuality between Dutch Women with Turkish Migrant backgrounds'. Nova Folkersma, Marta Mas Castella, Iris Molenaar and Emma van der Plas kregen de…

Het huidige bestuur van de Vereniging van Oud-Sterrewachters bestaat uit Niels van Weeren, Maaike Damen, Gerben Zwart en Anthony Brown (contactpersoon Sterrewacht).

The progressive loss and degeneration of dopaminergic neurons is a major pathological hallmark of Parkinson's disease (PD). The onset and progression of PD can be triggered by multiple risk factors, for instance, genetic mutation, environmental exposure, and aging.

Promotores: T. Hankemeier; R. Berger, Co-promotor: R.J. Vreeken

In order to gain a better insight into the basis of the rapid jasmonic acid (JA)-mediated stress response, an integrated approach using a targeted high-resolution mass spectrometry-based (HRMS) platform, was conducted to monitor the metabolism of JA using the model system of cell suspension cultures…

Promotor: Prof. dr. A.G.G.M. Tielens

When observing star-forming galaxies, we are not only seeing stellar light, but we also see how this interacts with galactic gas and dust. This thesis contains studies of the stellar, nebular and dust properties of low mass star-forming galaxies.

Aan de hand van de familiegeschiedenissen van drie families - Scheffer, Renan en Psichari - schetst Henk Wesseling een machtig panorama van de cultuurgeschiedenis van Frankrijk in de periode 1815-1914.