De verkiezingen komen er weer aan. Het gevolg van een kabinetscrisis. Politici en media wijzen uitgebreid op 'de issue' waar het om ging. De oorzaak van de breuk wordt breed uitgemeten. Maar is dat wel de oorzaak?

Promotor: Prof.dr. J.M. van Ruitenbeek, Prof.dr. R.M. Tromp

This thesis is a collection of theoretical works aiming at adjusting quantum algorithms to the hardware of quantum computers.

Promotor: Prof.dr. C.W.J. Beenakker

Wat is het effect van maatschappelijke veranderingen, persoonlijke levensomstandigheden en migratiebeleid op iemands besluit te migreren?

Visualizing the internal structure is a crucial step in acquiring knowledge about the origin, state, and composition of cultural heritage artifacts. Among the most powerful techniques for exposing the interior of cultural heritage objects is computed tomography (CT), a technique that computationally…

What invertebrates are available to feed nestlings in an agricultural landscape of varied complexity?

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.

Op 26 november 1940 hield Rudolph Pabus Cleveringa (1894-1980) zijn beroemd geworden protestrede.

Does roadside management in the mid-west USA increase invertebrate diversity similar to practices in Europe?

In this Ph.D. thesis we study the interaction of low energy electrons with thin materials, namely layered materials (graphene, hexagonal boron nitride, molybdenum disulfide) and organic films. At these low energies the quantum mechanical wavelength of the electron wave function is in the order of a…

Promotor: Jan van der Greef; Co-promotors: Mei Wang; Eduard van Wijk

This thesis is about the study of hydrocarbons via infrared spectroscopy.

In this thesis we study bistable reaction-diffusion equations on lattice domains.

Het kwantificeren van lichamelijke activiteit (met behulp van versnellingsmeters) en het combineren van de frequentie en intensiteit van activiteiten met gezondheidsgegevens (hersen-MRI, traditionele klinische parameters en metabolomics) is van het grootste belang om mobiliteit en gezondheid bij oudere…

Promotor: E. Bouwman, Co-Promotor: S. Bonnet

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

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

Promotor: J. Schaye

The haplolepideous mosses (Dicranidae) comprise about 4000 species distributed over a wide range of habitats, with great gametophytic and sporophytic morphological variation. Their monophyly is well supported by the results of several molecular phylogenetic studies, which shed light on their relationships…

Promotor: J.M. van Ruitenbeek, Co-Promotor: S.J. van der Molen

Binnen het brede netwerk van de Universiteit Leiden neemt het instituut deel aan onderzoek binnen de volgende profileringsgebieden:

Of all the mass in our Universe, 80% is thought to consist of a hypothetical and invisible substance called dark matter (DM).

Does a mid-season fire impact invertebrate populations?

Promotor: J. Zaanen, Co-Promotor: V. Juricic

Hoe kunnen we de uitvoering van EU beleid begrijpen en welke uitdagingen spelen daarbij een rol?

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.

The research presented in this thesis explores the chemotherapeutic potential of metal-based compounds as chemotherapy agents, with an initial focus on the synthesis and DNA interaction studies of platinum and palladium compounds utilizing the [Pt(bapbpy)]2+ scaffold. The study identifies intercalation…

De nieuwbouw voor de Faculteit der Wiskunde en Natuurwetenschappen is een belangrijke mijlpaal voor de Universiteit Leiden en de faculteit in het bijzonder. In drie fasen wordt een nieuw gebouw gerealiseerd. De eerste fase van het nieuwe gebouw is in 2016 in gebruik genomen en beslaat 45.000m2. Het…

Promotor: S.M. Verduyn Lunel, Co-promotor: S.C. Hille

Het gebruik van ‘Big data’ is niet meer weg te denken binnen het wetenschappelijk onderzoek. Voor dit onderzoek maken we gebruiken van diverse grote databestanden.

This thesis is devoted to an in-depth examination of the various effects of disorder in the cuprate high-temperature superconductors.

Het onderzoek van de afdeling Economie is ondergebracht bij meerdere facultaire programma's. Het onderzoek van de afdeling richt zich thans met name op sociaal-economische vraagstukken, rechtseconomie en fiscale economie.

What invertebrates live in the fields and edges? Do the populations change with landscape complexity?

Promotor: Prof.dr. H.L.V. Linnartz

Can we develop a platform for raw materials intelligence?

An interdisciplinary collection of the best international scholarship on Muslim youth.

Thermodynamics is one of the founding scientific pillars that has helped us better understand heat engines, biology, ecosystems, and even black holes. While it fundamentally describes large systems by examining the bulk behavior of their constituents, it is anchored in the statistical equivalence of…

n this PhD thesis, the recombination of different atomic lattices in stacked 2D materials such as twisted bilayer graphene is studied. Using the different possibilities of Low-Energy Electron Microscopy (LEEM), the domain forming between the two atomic layers with small differences is studied.

What impact does a mid-season wildfire have on grassland invertebrates?

Promotores: G.W. Canters, T.J. Aartsma

The main focus of this thesis is the behaviour of two-dimensional materials, namely (anti)-ferromagnetic materials in the first two chapters, which show topological phases, and energetic square ice in the third and fourth chapter.

Promotor: Prof.dr. C.W.J. Beenakker

In condensed matter systems electron-electron interactions, negligible in everyday metals, can dramatically alter the electronic behavior of the system. Examples of such altered behavior include high-temperature superconductivity and modulation of the electron density.

The database research community has made tremendous strides in developing powerful database engines that allow for efficient analytical query processing.

De hersenontwikkeling van kinderen met een extra X chromosoom in vergelijking met kinderen met idiopathisch autisme: inzicht vanuit MRI onderzoek

Promotor: Prof.dr. M.L. van Heck, Co-Promotor: B.P. Tighe

Ice, the solid state of water, plays an important role on our planet as well as the entire universe.Despite the fact that an individual water molecule has a very simple structure, its chemical bonding in the solid phase can be surprisingly complex.

Galaxies form and evolve through close interaction with their surroundings. As a result, the heavy elements ('metals') that are synthesized in stars, are found both inside and outside galaxies.

Organisms often need to adapt more efficiently and devise new strategies for surviving difficult ecological circumstances.