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

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…

Observational, cognitive and physiological measurements in social contexts.

The Pharmacy research group focusses on the development of predictive models to improve clinical drug efficacy and safety. We are moreover strongly involved in the Master specialisation of Pharmacy at Leiden University. We work on clinical problems that require further mechanistic understanding and…

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.

This third issue of Ex Novo gathers multidisciplinary contributions addressing mobility to understand patterns of change and continuity in past worlds; reconsider the movement of people, objects, and ideas alongside mobile epistemologies, such as intellectual, scholarly or educative traditions, rituals,…

Up to 50% of all children and adolescents growing up worldwide are exposed to at least one form of childhood adversity (CA), which is one of the strongest predictors for later-life psychopathology.

How do different emotional expressions influence the behavior of other people in negotiations?

On 22 February, Elody Hutten defended the thesis 'Tax Professionals Under Societal Pressure: A Dutch Case Study on Responses to BEPS'. The doctoral research was supervised by Henk Vording en Jan Vleggeert.

Terrorism destabilizes governments, undermines civil society, threatens social and economic development, endangers democracy, and directly impacts human rights. The extraordinary events on 9/11 turned counterterrorism into a global governance project. The global collaboration is unprecedented with traditional…

In the current global context, there is a pressing need to address sustainable energy supplies to safeguard our Planet and its ecosystems. The choices made by human society have a significant impact on genetic evolution and climate.

Emotions play a key role in EU politics. This article examines how emotions influence the EU’s response to international crises and norm violations.

Which molecules go into forming planets? PhD candidate Christian Eistrup and his colleagues have created new models to research this question. Their findings could change our idea of which molecules were forming Jupiter or even Earth.

For the first time, a court has ordered a company to reduce its carbon dioxide emissions. Lawyers see it as a landmark ruling that will have far-reaching consequences for Shell and possibly also other similar companies.

Cars are equipped with catalysts to disarm toxic exhaust gases. Platinum plays an important role there. Leiden physicists and chemists have now for the first time seen the mechanism behind a platinum catalyst. With a fundamental understanding of the process, scientists can use this rare material more…

Lecture

Despite the rapid progress in solar and wind energy, a completely clean energy supply remains a huge challenge. Heavy industry, aviation, shipping and road transport are not yet able to do without carbon-based fuels. To reach the climate goals, in these industries energy consumption should be CO2 neutral. In…

Development of an aggregated impact indicator to measure decoupling.

The NEASQC project brings together academic experts and industrial end-users to investigate and develop a new breed of Quantum-enabled applications that can take advantage of NISQ (Noise Intermediate-Scale Quantum) systems in the near future. NEASQC is use-case driven, addressing practical problems…

This project, under the supervision of Prof. Dr. Hans van der Plicht, comprises several studies aimed at the use of isotopes occurring naturally in organic material as tracers for both the climate change and its cultural impact at about 6200 BC. The research will be carried out by the co-applicant at…

Leiden University is aware of its role in society and wants to create a green, healthy and inclusive campus and have a positive impact on the field of climate and circularity.

The plans for making the University Library (UB) more sustainable will be carried out in three steps: first the glazing at the front of the building will be replaced with HR++ glass, then the skylights will be renewed and finally the air conditioning system will be updated. Once these steps have been…

Isotopes on exoplanets, a more efficient memory for data centres or new molecules that work against the Zika virus and HIV. Which PhD candidate has written the most impressive dissertation of 2023? The jury of the C.J. Kok Jury Award faces the challenging task of deciding that. Meet the nominees of…

The long term goal of the Biophysical Organic Chemistry/SSNMR group, headed by Prof. Huub de Groot, is to reach an understanding of structure, dynamics and functional mechanisms of membrane proteins and self-organized biological assemblies and to translate this knowledge into new concepts for nano-devices,…

The 'living lab' Vrouwe Vennepolder is situated just north of Leiden, The Netherlands, and aims to find ways to improve the agriculture of the future.

Leiden University is committed to reducing our water consumption.

What is the size and composition of the Dutch urban mine? How will the urban mine develop over time, and how can it be used as a source of materials as part of a circular economy?

Promotor: J.W.M. Frenken Co-Promotores: I.M.N. Groot; L.B.F. Juurlink

Cardiovascular disease is the number one cause of death worldwide. The most important risk factor for developing this disease is high cholesterol levels in the blood.

On 5 September 2017, Alessandro Tonutti defended his PhD dissertation

A Biography of Sayyid ʿUthman (1822–1914)

Research at the BPOC/SSNMR group is comprised of the following research themes:

Chapter 2 describes a post-synthetic methodology to introduce a fluorescent label in highly lipophilic, Pam3Cys based conjugates.

The loss of T-cell homeostasis and tolerance towards self-antigens is the underlying cause of autoimmune and inflammatory diseases like atherosclerosis, rheumatoid arthritis or type I diabetes. Traditionally, the treatment of these diseases consisted on systemic immune suppression, which can entail…

In the research programme Drug Discovery & Safety, we are interested in the efficacy and safety of new drugs and novel means to decipher these aspects. Hence, we employ advanced imaging and high-throughput screening techniques next to computational approaches such as chem- and bioinformatics.

Promotor: H.S. Overkleeft, Co-promotor: B.I. Florea

Large areas of space are filled by molecular clouds that consist of gas and dust grains that are the remnants of dead stars. When these clouds start collapsing, the decreasing temperature and increasing density cause gas particles to start accreting onto dust grain surfaces.

Astronomical observations of cold regions in the universe show a rich inventory of ices. Part of these ices may end up on planets like our own, but in that journey they will be exposed to considerable amounts of radiation.

Artificial photosynthesis aims to produce fuels from solar energy using chemical processes. In semi-artificial photosynthesis, a hybrid approach is taken using both chemical and biotechnology approaches. We aim to develop hybrid systems between light-harvesting nanoparticles and redox-enzymes (oxidoreductases)…

Ömer Koçyigit defended his thesis on 7 July 2020

Natural vanilla flavor is one of the most important in the world. However, the cost of this flavor is expensive. Production of this flavor by alternative methods, could reduce the cost.

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

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.

Promotores: Prof.dr. H.S. Overkleeft, Prof.dr. G.A. van der Marel

The chemical and structural heterogeneity of toxoid vaccines makes their analysis challenging. However, detailed insights on a molecular level can be obtained by mass spectrometry.

Crises arising from terrorism, war, violence, cyber threats, and natural disasters dominate world news and make crisis and security a heavily politicised and hotly debated topic at the top of the national and global societal and governance agenda. This master Crisis and Security Management focuses on…