To study how planetary systems come into existence we study much younger systems still in formation.

Promotor: Arjen Doelman, Co-promotor: Vivi Rottschäfer

The formation and evolution of galaxies is fundamentally driven by the formation of new stars out of cold gas.

Promotor: M. Franx, Co-Promotor: I.F. Labbé

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

Understanding how galaxies form, interact, and evolve comes largely from comparing theory predictions with observational data. Numerical simulations of galaxies provide the most accurate approach to testing the theory, as they follow the non-linear evolution of gas and dark matter in great detail and…

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.

Following the Big Bang, structure in the Universe started collapsing under the force of gravity. This resulted in the formation of the first stars, galaxies and clusters of galaxies.

Op 17 april verdedigde Evert-Jan Govaers het proefschrift 'Ministers van Staat: onbekend en bemind; van podium naar de coulissen?'. Het promotieonderzoek is begeleid door Wim Voermans.

Het staats- en bestuursrecht geeft de regels, aan de hand waarvan maatschappelijke vraagstukken door de overheid worden opgelost.

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

De master Staats- en bestuursrecht besteedt aandacht aan de wisselwerking tussen nationaal & Europees recht. Dit is een afstudeerrichting van de master Rechtsgeleerdheid.

Galaxies in the local Universe fall into two main categories of spirals and ellipticals. In this Thesis, we explore the structural evolution of galaxies into this bimodal distribution.

This thesis focuses on protoplanetary disks: flattened structures of gas and dust around young stars in which planets are expected to form and grow.

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

This thesis focusses on the temperature structure in protoplanetary disks. The relation between structures seen in the dust and gas-phase molecules is investigated.

This thesis takes steps toward understanding the interaction between gas-phase and solid-state molecules in star- and planet-forming regions.

Promotor: Prof.dr. C.U. Keller

Alle spelers op het wereldtoneel opereren strategisch om hun belangen veilig te stellen. Politicologen aan de Universiteit Leiden maken dit grillige krachtenspel inzichtelijk. Hun onderzoek helpt kiesgerechtigden, Ngo’s, overheden en internationale organisaties om slimme keuzes te maken in een complexe…

Rechtsgeleerdheid, Instituut voor Publiekrecht, Staats- en Bestuursrecht

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

The aim of this workshop is to open up the discussion of textual communities in Late Antiquity and the early Middle Ages, by offering a platform for PhD students from all over the world and from various disciplines to present their own research and discuss it with others. Deadline: April 23.

Promotor: Prof.dr. H.V.J. Linnartz, Co-Promotores: S. Ioppolo, H.M. Cuppen

Boek over de totstandkoming van het Koninkrijk der Nederlanden, onder redactie van onder andere Henk te Velde.

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

Organic molecules in interstellar space are important as they influence the structure of galaxies and star formations. Studying catalytic processes in space allows us to understand how molecular species are formed and chemically evolved in the interstellar medium and solar system objects.

Hoe zorgen vroegmoderne staten voor effectief bestuur in moeilijke omstandigheden? In EMStaD JEMEN staat een land centraal dat vanwege zijn geografische, religieuze en sociale complexiteit tegenwoordig wordt beschouwd als een failed state: Jemen.

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

Outflows are crucially important for the gas budget and evolution of luminous star-forming galaxies and AGNs, with observed mass outflow rates of the same order as the star formation rate. Greater star formation and black hole growth lead to more intense feedback and outflows, resulting in self-regulated…

In september 2012 verscheen onder redactie van T. Bosch en L. Wessels het boek 'Nationalisme, naties en staten. Europa vanaf circa 1800 tot heden'. Dit fraai uitgegeven werk (704 blz.) is een product van de samenwerking tussen de Open Universiteit en Uitgeverij Vantilt.

OB associations are loose groups of young, massive stars. They constitute the last stage of the massive starformation process, and the context in which new stars are formed.

Even though more than 4000 extra-solar planets are known today, only a small fraction of these has been captured in an image. To better understand the planet formation mechanisms in solar-like environments we started the Young Suns Exoplanet Survey (YSES).

In astronomy, the interpration of observations and measurements plays a crucial role: we rely purely and fundamentally on the information that reaches us as observers. And 80% of all matter in the universe is undetectable directly.

One of the effects of climate change is the phenomenon of desertification, a process that occurs in semi-arid and arid areas and causes land degradation as well as vegetation loss. Due to the lack of resources, vegetation self-organizes to sustain itself by forming large-scale spatial patterns.

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

The thesis explores how interstellar chemistry evolves as a function of time and changing physical architectures during the formation of stars.

Leidse wetenschappers onderzoeken in hoeverre Aziatische burgers in de praktijk aanspraak kunnen maken op rechten, die ze op papier hebben. Aan de hand van die kennis adviseren ze overheden en NGO's hoe de situatie voor (vooral arme) burgers verbeterd kan worden.

In this thesis, we aimed to better understand the underlying mechanisms involved in TNBC progression and metastasis formation and discover new targets to reduce breast cancer related deaths.

Bacteria have the ability to alter their morphology in order to adapt to changing environments.

Promotor: Johan Kuiper, Co-promotor: Saskia C.A. de Jager

Sterrenkundigen onder leiding van John Tobin hebben dankzij nieuwe waarnemingen, verricht met de Amerikaanse Very Large Array-radiotelescoop (VLA), meer inzicht verkregen in het geboorteproces van meervoudige sterren.

Promotie

Promotie

This thesis focuses on amyloid proteins, a class of proteins that convert into amyloid fibrils.

This thesis is an experimental study of the UV irradiation of the interstellar ice analogues, relevant for the different stages of the star and planet formation sequence.

In this thesis, we used genetically engineered mouse models to identify genes and pathways that are involved in ILC formation and in the development of resistance to FGFR-targeted therapy.

My PhD thesis investigates the ecological significance of resistance against drought-induced air bubble formation inside the water conduits of plants (embolism), and the plasticity and functional aspects of stem anatomical traits in woody and herbaceous species.