Galaxies are environments where gas coalesces, cools, and is converted into stars. However, it remains unclear the exact mechanisms through which galaxies acquire, redistribute and lose their gas.

What is the population size and social structure in time and space? What is the lion diet and food preference in time and space? What is the home range (MCP and Kernel) and movement in time and space? What are human – lion conflict and responses of lions to traditional herding in time and space? What…

Promotores: Prof.dr. F.P. Israel, Prof.dr. P.P. van der Werf

Promotor: P. T. de Zeeuw, Co-promotor: N. Neumayer; G. van de Ven

A century ago, it was unclear whether the stars in the sky were clustered in groups, or widely spread in the universe.

Promotor: Prof.dr. S. Portegies Zwart

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

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

Promotores: Prof.dr. M. Franx, Prof.dr. M. Kriek (Univ. of California at Berkeley)

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.

For centuries astronomers studied the Universe by collecting light. Nowadays, we are living in times of great technological advancements, which allow us to explore our Universe in a new way - though gravitational wave radiation.

This thesis presents pioneering work on the panchromatic emission of some of the most luminous galaxies in the early Universe: star forming galaxies and active galactic nuclei.

The solar system was formed approximately 4.56 billion years ago. Despite the numerous theories that have been developed over the years, the formation and evolution of the solar system still remain unclear.

De eerste conferentie van de European Society of Criminology werd in 2000 in Lausanne gehouden. Nu, 16 jaar en veel nieuwe ESC-leden later, werd de 16e jaarlijkse conferentie van de European Society of Criminology gehouden in Münster van 21-24 september 2016.

Astronomen willen het heelal begrijpen, van de Oerknal tot nu, en hoe dit verder zal gaan. In Leiden concentreren ze zich daarbij op twee vragen: 'Hoe ontstaan sterren en planeten? en 'Hoe ontstonden in het jonge heelal sterrenstelsels en zwarte gaten?' Een nieuwe generatie telescopen – net klaar of…

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

It has now been well established that shocks and turbulent motions in the intra-cluster medium (ICM) generated through cluster mergers can produce large-scale synchrotron emission.

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

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What is vegetation structure and composition in SFM primary forest, secondary logged over forest (logging FSC certified and logging non certified) in comparison to primary forest? What is avian guild diversity in SFM primary forest, secondary logged over forest (logging FSC certified and logging non…

Promotor: Prof.dr. J. Schaye, Co-promotor: Marcello Cacciato

Describe and identify what dosimetry parameters are of importance to interpret dose-response relationships (eg., mortality, sub-lethal, growth or reproduction inhabitation, DNA damage and reactive oxygen species, etc. ) for metal-based nanoparticles? How to develop quantitative models that enable to…

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

Promotor: F.P. Israel, Co-Promoter: R. Meijerink

We investigate the buildup of galaxies from various vantage points. The first two chapters focus on the stellar content of galaxies, especially the distribution of stellar masses at birth and potential variations therein in various galactic environments.

Supervisor: S.F. Portegies Zwart Co-Supervisor: A.G.A. Brown

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Promotor: H.J.A. Röttgering, Co-promotor: G.K. Miley

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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…

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The lipid membrane is a basic structural component of all living cells. Embedded in this nanometer-thin barrier, membrane proteins shape the membrane and at the same time respond to the shape of the membrane.

This thesis explores different avenues to develop insurmountable antagonists for CC Chemokine Receptors, such as CCR1, CCR2 and CCR5.

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.

The high velocity tail of the total velocity distribution of stars provides essential insight into fundamental properties of the Galaxy.

This thesis describes the importance of being able to control the selectivity of potential drug candidates.

A plasma is an ionized gas with very low electrical resistivity. As such, magnetic field lines are 'frozen in' and move with the fluid. Magnetic field lines that are linked, knotted and tangled, cannot be undone by the fluid motions.

Promotores: B. Erez, P. Stevenhagen, Co-Promotor: B. de Smit

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This PhD-thesis presents a study on micron-sized particles, so-called colloids. By controlling the chemical and physical properties of these particles, such as the interparticle interaction and the particles’ shape, colloids can act as building blocks that self-assembly into larger structures.

Promotor: J.A. van Veen, Co-promotor: E.E. Kuramae

Promotor: Prof.dr. J.G.E.M. Fraaije, Co-promotor: A. Kros

Promotor: A. Doelman, Co-promotor: M.F.E. de Jeu

Mechanical metamaterials are man-made materials which derive their unusual properties from their structure rather than their composition.

The long-held desire - to link structure directly to function and to explain molecular mechanisms based on basic chemical or physical principles - is finally coming closer, satisfying not only our scientific curiosity but also offering new solutions to the many challenges in the field of health, energy…

Promotores: G.R. de Snoo, B. Sinsin, Co-Promotor: H.H. de Iongh

Promotores: Prof.dr. E.F. van Dishoeck, Prof.dr. C.P. Dullemond