Wiskunde en Natuurwetenschappen, Instituut Biologie Leiden (IBL)

Promotores: Prof.dr. A.G.G.M. Tielens, Prof.dr. L.B.F.M. Waters (UvA), Prof.dr. C. Dominik (UvA)

Promotor: S.M. Verduyn Lunel, Co-promotor: O. van Gaans

Balsaminaceae is a diverse plant family characterized by a huge floral morphological diversity.

The thesis is about the study of shell evolution of the Hydrocenidae of the genus Georissa. This thesis started with a general overview on the evolutionary process of animals due to ecological changes.

Promotor: Prof.dr. M. Schilthuizen

The growing demand of energy indicates that global energy resources in the form of fossil fuels will not be sufficient in the future. In order to solve potential future energy problems development of a sustainable hydrogen economy is highly desirable.

We have examined sequences from the ligand-binding domain of the nicotinic acetyl choline receptor (nAChR) in 148 vertebrate species. We are in interested in this receptor because the α-neurotoxins of many venomous snakes binds to this receptor in its location at the neuromuscular junction in all ve…

Promotor: S.M. Verduyn Lunel, Co-promotor: O.W. van Gaans

Sustainable energy from wind and solar is most readily available near the sea.

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

Electrocatalysis allows for storing electricity or converting it into chemical bonds, producing chemical building blocks and fuels using renewable resources.

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

Bicarbonate buffer is largely found in nature due to its ability to regulate pH variations around neutral values. As the pH changes, so does the speciation of the buffer.

This thesis has shed light on some of the ways in which the local electrolyte composition can differ from the bulk and how these changes in the local reaction environment can determine the activity and/or selectivity of two important electrocatalytic reactions, namely, electrochemical CO2 reduction…

This thesis investigates the structural evolution and assembly of galaxies since the first few billions years after the big bang.

Planets are formed in disks of gas and dust around young stars.

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

Promotores: Prof.dr. P.M. Brakefield, Prof.dr. B.J. Zwaan (Wageningen Universiteit)

Promotor: Prof.dr. E.F. Smets

The explosive radiation and diversification of the advanced snakes (superfamily Colubroidea) was associated with changes in all aspects of the shared venom system. Morphological changes included the partitioning of the mixed ancestral glands into two discrete glands devoted for production of venom ormucous…

The logic seems inescapable indeed. The bigger the population, the higher the probability it contains an Einstein. Hence, bigger populations are more likely to develop complex culture.

Evolutie is elke dag om je heen. Dat is de boodschap van de nieuwe Massive Open Online Course (MOOC) van de Universiteit Leiden en Naturalis die 19 september van start gaat.

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

We developed the bitterling as a unique, well-studied model organism in the area of the evolutionary ecology of brood parasitism. The bitterling-mussel relationship, interspecific mussel host preference, and mussel gill structure are studied in detail, to help understand the developmental adaptation…

Promotor: M.T.M. Koper, Co-promotor: L. Juurlink

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.

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

Promotor: Prof.dr. E.F. Smets, Co-Promotor: L.W. Chatrou

Cursus

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

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.

This dissertation studies the Asymptotics of Bayesian nonparametric inference for Gaussian linear models.

In this dissertation iron-based homogeneous catalysts were synthesized, characterized and investigated for water oxidation activity.

Taxonomy as a science has accumulated data and knowledge for more than 250 years.

The thesis addresses the long-term dynamical evolution of hierarchical multiple systems.

One of the key quests in astronomy is to study the growth and evolution of galaxies across cosmic time. Radio observations provide a powerful means of studying the formation of stars and subsequent buildup of distant galaxies, in a way that is unbiased by the presence of dust.

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

Hybrid zones occur where two species meet and produce offspring (hybrids). Typically, hybrids show a considerable reduction in fitness. In this thesis two hybrid zones are treated.

Lezing

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

Circumstellar discs are the reservoirs of gas and dust that surround young stars and have the potential to become planetary systems.

Promotor: Prof.dr. E Gittenberger, Co-Promotores: C.H.J.M. Fransen, B.W. Hoeksema

Promotor: Prof.dr. E.F. van Dishoeck

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

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

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