Promotor: H.J.A. Röttgering, Co-promotor: M. Haverkorn

Make more fluid: In condensed matter systems, electrons can acquire unusual properties from their interaction with the atomic lattice.

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.

Promotor: Prof.dr. H.J.M de Groot, Co-Promotor: A. Alia

Promotor: Prof.dr. H. J. A. Röttgering, Co-Promotor: M. Haverkorn

The elementary excitations of magnets are called spin waves, and their corresponding quasi-particles are known as magnons. The rapidly growing field of Magnonics aims at using them as information carriers in a new generation of electronic devices, (almost) free of electric currents.

In this thesis, we describe the latest advances in SQUID-detected Magnetic Resonance Force Microscopy (MRFM).

Promotor: T.H. Oosterkamp

This thesis investigates the relations between metabolism and anatomy through the use of Magnetic Resonance Imaging (MRI).

In this thesis, we show how MRFM can usefully contribute to the field of condensed-matter.

There are many interpretations of quantum mechanics, and ultimately experiments are needed to verify or falsify these interpretations.

The radio sky harbours both galactic and extragalactic sources of arcminute- to degree-scale emission of various physical origins. To discover extragalactic diffuse emission in the Cosmic Web beyond galaxy clusters, one must image low–surface brightness structures amidst a sea of brighter compact fore-…

Pulsars were first discovered in 1967 and since then the population has grown and expanded over several wavelengths.

Promotor: Prof.dr. H.W. Lenstra

Promotor: H.W. Lenstra

Promotor: A. Achúcarro, Co-promotor: A. Boyarsky

Promotor: H.W. Lenstra, Jr., Co-promotor: B. de Smit

Promotor: C. W. J. Beenakker, Yu. V. Nazarov, Co-promotor: J. Tworzydlo

Promotor: T. H. Oosterkamp

Promotor: A. Achúcarro, Co-Promotor: J.W. van Holten

This thesis is about cosmological inflation and its relation to observations.

Promotor: V. Vitelli, Co-promotor: J. Paulose

Artin L-functions associated to continuous representations of the absolute Galois group G_K of a global field K capture a lot of information about G_K as well as arithmetic properties of K.

Promotor: Prof.dr. P. Stevenhagen, Co-Promotor: J.H. Evertse

Ferritin is a spherical metalloprotein, capable of storing and releasing iron in a controllable way. It is composed of a protein shell of about 12 nm and within its cavity, iron is stored in a mineral form.

Promotores: T.H. Oosterkamp, N. de Jonge

Promotores: J. Zaanen, A. Parnachev

Promotor: J. Aarts

Promotores: Prof.dr. D. Bouwmeester, Prof.dr. A. Fiore (TU Eindhoven)

In this thesis, we develop a novel technique called Optical Near-field Electron Microscopy (ONEM), which aims to combine the advantages of both optical and electron microscopy: the high resolution of electron microscopy and the low sample damage of optical microscopy.

Promotor: Prof.dr. P. Stevenhagen, Prof.dr. K. Belabas (Univ. de Bordeaux)

Promotor: K.E. Schalm, Co-promotor: S.S. Lee

Promotor: Prof.dr. M. Ubbink

In this thesis, I studied the origin and evolution of the non-thermal radiation in merging galaxy clusters.

This thesis covers various applications of topology in condensed matter physics and quantum information.

The thesis describes terrestrial field trials aimed to detect side-effects of pesticides within the framework of pesticide registration procedures. Field trials were developed using vascular plants Brassica napus and Poa annua, caterpillars Pieris brassicae and effects on decomposition were studied…

Promotores: W.J.G.M. Peijnenburg, G.R. de Snoo, Co-promotor: M.G. Vijver

Promotor: S.J. Edixhoven

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

This thesis describes the implementation and on-sky demonstration of high-resolution integral-field spectroscopy for extreme adaptive optics systems that are used to find and characterize exoplanets.

Many galaxy clusters exhibit bright diffuse radio emission that traces the underlying structure of the intracluster medium (ICM).

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

In this thesis, I study the formation of large-scale structure and the physics of particle acceleration at large scales (~Mpc).

Majorana fermions in superconductors are the subgap quasiparticle excitations that are their own antiparticles.

Promotor: Prof.dr. H.J.A. Rottgering

Binnen het Graduate Programme van Nederlandse Organisatie voor Wetenschappelijk Onderzoek (NWO) is de aanvraag voor de 'Netherlands Magnetic Resonance Research School' gehonoreerd. Deze onderzoeksschool is een van de 18 gehonoreerde aanvragen. Vier Leidse Graduate Schools zijn gehonoreerd.

A management strategy has been developed for field margins to reduce pesticide drift to non-target areas and to promote biodiversity on arable land. To this end, 3 and 6 m wide strips along the edges of winter wheat, sugar beet and potato crops have been left unsprayed with herbicides and insecticides…

The redox-conversion reaction of metal-disulfide and metal-thiolate complexes are important, as they may shed light on electron-transfer reactions that often occur in Nature.

Promotor: S.J. Edixhoven Co-promotor: L. van Geemen, P. Parent