Mechanical forces are known to play an important role in bacterial colonies. In this dissertation, we study the self-organization at various stages of growing bacterial colonies, and focus on the mechanical effects of cell growth.

Heterogeneous catalysis is one of the fundamental processes of modern life, being common in industrial refinery and hydrogen vehicles, all the way to the living cell. The dissociation of H2 on Cu(111) is an important benchmark system for studying heterogeneous catalysis, with a large and varied amount…

What is the population size/structure and distribution of tiger and leopard inside the Bardia National Park (BNP) compared with the population outside? What is the movement and home range and conflict pattern in time and space of tigers and leopards inside the BNP compared with outside? What constitutes…

This research focuses on a historical/social analysis of a selected corpus of novels from modern Turkish literature which have the common theme of migration from Anatolian towns and villages to Istanbul, and the immigrants’ struggle in this city against various exclusion mechanisms.

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

We perform multidisciplinary research at molecular, cellular, and organismal levels of animal biology to increase fundamental understanding of health and disease.

Heterogeneous catalyzed processes are highly significant to the chemical industry. Dissociative chemisorption (DC) of molecules on surfaces is always considered as a step with a high degree of rate control for heterogeneous catalysis.

This thesis describes a study from both a theoreticaL and an experimental point of view.

Promotor: H.V.J. Linnartz

Despite the history of studies on methanol formation from CO2, the dominant elementary reaction steps that constitute the chemical mechanism for this catalyzed process are not determined.

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

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.

Scientists at Leiden University (Netherlands), Stuttgart University (Germany) and Ural Federal University (Russia) have successfully put forward a novel, computed, reaction mechanism that was experimentally tested and show that formaldehyde is formed at much earlier stages in the birthplaces of stars…

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

Promotor: Prof.dr. E. F. van Dishoeck, Co-promotor: A. N. Heays

Several techniques are explored for going beyond the born-oppenheimer static surface model for molecule-surface reactions.

The work in this thesis demonstrates how to obtain an atomic-scale picture of a diverse set of complex surface structures observed using STM, under disparate conditions.

Can the pink-pigmented microbe Methylobacterium extorquens be genetically engineered to convert the sustainable raw material methanol into antibiotics?

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.

PhD defence

PhD defence

Eurostat, the European statistical office, reports that inflation in the Eurozone has increased to 4.1 per cent. What are the implications for your wallet and your savings? And how can consumers respond?

Microbial Sciences' contribution to the Host-Microbe Interactions research theme is to investigate how beneficial or disease-causing microbes associate and interact with their host.

Metals surfaces form a group of effective catalysts for the reaction of small molecules such as hydrogen (H2).

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

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

In the search for sustainable energy solutions, the idea of artificial photosynthesis has been proposed as an approach with which to use water and sunlight to produce hydrogen.

With increasing carbon dioxide levels in the atmosphere and their detrimental effect on the global climate, modern society needs to push for more renewable energy sources. Storing widely accessible and abundant solar energy in chemical bonds in the form of molecular fuel via artificial photosynthesis…

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.

The SNP genotyping line offers flexible genotyping for small and large projects at affordable price and high quality. The use as SNPs as molecular markers is very versatile and can be used for a wide variety of scientific questions ranging from paternity analysis, conservatuion genetis towards QTL…

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…

Promotor: M. Ubbink, Co-promotor: G. Siegal

The Biology programme offers 4 research-oriented specialisations corresponding with the research themes within the three institutes involved. You can choose a more practical-oriented specialisation if you would like to combine Biology with education, management business, or science communication.

Navarro Paredes

Promotores: T.H.W. Bäck, A. Plaat, Co-promotor: F.J. Verbeek

Microbial Sciences' contribution to the Bioactive Molecules research theme is to discover new bioactive molecules and enzymes and unravel their mechanisms of action, regulatory networks, and the (bio)synthetic pathways required for their production.

Lecture

Pathogenic bacteria are increasingly resistant to today’s antibiotics. Professor Gilles van Wezel seeks new forms of antibiotics in good bacteria that live in the soil.

The Molecular Physiology group collaborates with both international public-private and academic institutions.

The Advisory Board of the IBL consists of five eminent scientists with specialist expertise in complementary disciplines. They all have prominent positions for the field of Biology in the Netherlands outside our own institute.

We investigate reaction systems, a novel computational model gleaned from the biochemical reactions taking place in living cells and information processing in nature.

Find out how to apply for Molecular Genetics and Biotechnology at Leiden University by following our step-by-step guide.

Find out how to apply for Molecular, Cellular and Organismal Biology at Leiden University by following our step-by-step guide.