Promotor: G.R. de Snoo, Co-promotor: C.J.M. Muster

Op 7 december 2021 verdedigde Georgina Kuipers het proefschrift 'Beschadigd vertrouwen'. Het promotieonderzoek is begeleid door prof.mr. W. den Ouden en prof.dr. M.A. van der Steen (EUR).

Promotor: J.N. Kok, Co-Promotor: A.J. Knobbe

Promotor: Prof.dr. C.U. Keller

Promotores: Prof.dr. J. Schaye & Prof.dr. C. Steidel (California Institute of Technology)

De Universiteit Leiden staat midden in de maatschappij en wil bijdragen aan een duurzame samenleving. Verduurzaming van gebouwen levert een bijdrage aan Nederlandse en Europese milieunormen. De Universiteit Leiden houdt daar in al haar bouwprojecten rekening mee.

Promotores: Prof.dr. M. Franx, Prof.dr. P.G. van Dokkum (Yale University)

Promotor: Prof.dr. M. Franx, Co-Promotor: Rychard Bouwens

In this thesis new methodologies are developed for the detection and systematic study of radio sources in the early universe. This allows us to gain a deeper understanding of the formation and evolution of galaxies, the activity of supermassive black holes, and the final phase transition of our universe:…

In this dissertation, matching, entropy, holes and expansions come together. The first chapter is an introduction to ergodic theory and dynamical systems.

Plants produce an astonishing variety of secondary metabolites (SMs) which are thought to play vital roles in the fitness of plants through ecological interactions.

Promotor: Prof.dr. G.R. de Snoo

BlaC is the β-lactamase of Mycobacterium tuberculosis. We show that it can recover from inhibition by clavulanic acid and that phosphate helps it do so.

Promotor: A. Doelman, Co-promotores: P.J.A. van Heijster; A. Zagaris

Promotor: M.T.M. Koper, Co-Promotor: L.B.F. Juurlink

This thesis contributes to studying primordial cosmology theories and their detectability in future observations.

The Sun and all the stars in the night sky reside in the Milky Way galaxy. In the at-rest reference frame of the Galaxy, typical stars travel with velocities of about 100-200 kilometres per second.

Leiden University offers a unique range of summer courses where you can broaden or deepen your knowledge or share your expertise with fellow students. The choice of academic courses is very diverse, ranging from Law, Big Data, Languages and Linguistics to Maths and Natural Sciences, Biology, Biomedical…

Er wordt een expertise groep voor de Atacama Large Millimeter / Submillimeter Array (ALMA) gehuisvest in de Sterrewacht van Leiden. Hiermee is een bedrag is gemoeid van 0,5 miljoen euro per jaar.

Promoveren in wat voor deeltjesfysici het Mekka van de moderne wetenschap is: CERN. Voor de bijna afgestudeerde natuurkundige Marco van Woerden wordt deze droom binnenkort werkelijkheid, en mag hij zich in Genève drie jaar lang bezighouden met de fundamenten van de wetenschap.

Evolution acts via mutations in amino acid sequences. Substitution of essential amino acids leads to a nonfunctional protein. l.

The formation of stars and planets happens over multiple scales, which can interact. In particular, planet formation happens in the dense, complex environment of star forming regions.

The thesis mainly contributes to the characterization of Majorana fermions as they appear in the Condensed Matter context.

Het DESHIMA-instrument van Nederlands-Japanse makelij heeft de eerste praktijktests doorstaan bij het meten van de afstanden en leeftijden van verre sterrenstelsels. De kern van het instrument is een chip ter grootte van twee euromunten die 49 tinten ver-infraroodlicht meet. De ontwikkelaars van de…

De universitaire sterrenkunde in Nederland staat in de top van de astronomische wereldranglijst. Deze conclusie komt naar voren uit een recente evaluatie van de Nederlandse Onderzoekschool voor Astronomie (NOVA) en de astronomische instituten van de Universiteit Leiden, Universiteit van Amsterdam, Rijksuniversiteit…

On the largest scale, the Universe resembles a cosmic spiderweb. Most galaxies coexist in small groups within the threads of this web. At the nodes of the threads are enormous groups of galaxies forming the largest structures in the universe still held together by gravity: clusters of galaxies.

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

The focus of this thesis is how stars like our Sun and planets like Jupiter, Saturn, and Earth are formed.

Complex Organic Molecules (COMs) have been detected in objects across different stages of stellar evolution.

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.

This thesis explores the theoretical and observational properties of distant massive galaxies that harbour active black holes in their centres and shine brightly at radio wavelengths.

Over the last three decades, the discovery of exoplanets has revealed the boundless variety of worlds beyond our own Solar System⁠. Majority of planetary systems contain short-period planets that are larger than Earth but smaller than Neptune⁠.

This thesis describes the development and validation of new high-contrast imaging techniques, with the ultimate goal of enabling the next generation of instruments for ELT-class telescopes to directly image Earth-like extra-solar planets orbiting around nearby stars.

Promotor: M.A.G.J. Orrit

Bij LIACS erkennen we de groeiende behoefte aan geavanceerde technische ondersteuning bij onderzoeksprojecten en labonderwijs. Toenemende studentenaantallen, steeds geavanceerdere hardware en infrastructuur, nieuwe eisen rondom dataveiligheid en -beheer, en de complexiteit van de kerncursussen informatica…

Promotor: Prof.dr. J.N. Kok

Promotor: E. Gittenberger, Co-promotores: B.W. Hoeksema; L.P. van Ofwegen

Promotores:Th.J.C. van Berkel, M. van Eck

Over the past years it has been discovered that the population of extra-solar planets is large and diverse.

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

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

Promotores: Prof.dr. H.S. Overkleeft, Prof.dr. G.A. van der Marel

Quantum computers are a proposed fundamentally new type of computer. They aim to perform some computations much faster than previously possible by exploiting phenomena at the quantum scale, called superposition and entanglement.

The work in this thesis has been focused on two subjects. The first is the assembly of alginate oligosaccharides and the generation of building blocks for the enzymatic synthesis of alginate, and the second is the total synthesis of large fragments of the zwitterionic SP1 polysaccharide.

In this thesis, we have used numerical approaches to study the effects of translational symmetry breaking on strange metallic systems as realised by the holographic duality⁠.

In this work we describe three methods to improve the performance of Quantum Field Theory calculations.

Biodiversity enables ecosystems to thrive through the synergy of functional differences among organisms. While human well-being strongly depends on biodiversity-driven ecosystem services, human actions are also at the root of current unprecedented biodiversity declines.

Food security is challenged by a growing global population and by climate change. Drought and soil salinity are considered the most important ones that inhibit crop yield and distribution. Worryingly, climate change is predicted to increase not only their frequency and severity, but also their co-occurrence,…