The main goal of the research described in this thesis was the development of new photoactivated chemotherapy (PACT) ruthenium(II) complexes bearing a non-toxic photolabile ligand.

PNAS publication on protein encounter complexes

Can we determine the 3D structure of a chemotaxis core complex using single-particle reconstructions via cryo-EM?

The redox-conversion reaction of metal-disulfide and metal-thiolate complexes are important, as they may shed light on electron-transfer reactions that often occur in Nature.

Promotor: Prof.dr. M. Ubbink

Promotor: E. F. van Dishoeck, Co-promotor: C. Walsh

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.

Imagining Urban Complexity introduces passionate and critical perspectives on the link between the humanities and urban studies.

This thesis pioneers diatom molecular identification and quantification through genome-scale methods, with four key aims: (i) reviewing DNA/RNA sequencing methods in aquatic biomonitoring to highlight their strengths and limitations;

PhD defence

In this thesis, we focus on novel proteins/mechanisms that regulate integrin-adhesion mediated mechano-transduction.

The mechanism of the electrochemical reduction of dioxygen by a mononuclear pyridylalkylamine copper complex was investigated (see picture). It was shown that in neutral aqueous solution dioxygen undergoes stepwise reduction, wherein hydrogen peroxide plays a key role. The rate constants determined…

Solar energy is used by photosynthetic organisms to drive energy required cellular processes. Is absorbed by two groups of pigments, located in the LHCs.

How can pupils and students learn to get a grip on complex 'swamp situations'? Inaugural lecture in abbreviated form held by prof.dr.ir. Fred Janssen on the acceptance of the post of professor of science education at Leiden University on 19 June 2017.

The financial system needs complexity theory to predict economic crises like the 2008 meltdown. An international team of scientists, including Leiden physicist Diego Garlaschelli, state this in a paper published in Science on February 19th.

Policy Note Insecurity in Burkina Faso – beyond conflict minerals: The complex links between artisanal gold mining and violence

The project investigates the changing local context of crime dynamics and the responses by selected international organizations and national governments. It places a major emphasis on security management at the trans-national level by investigating intra-regional security cooperation between Latin America,…

The largest genus within the Phyllanthaceae family is a group called Phyllanthus L. Recent studies have shown, that Phyllanthus is paraphyletic with the genera Glochidion, Breynia and Synostemon nested within it.

This book is the first comprehensive presentation of the archaeology of Syria from the end of the Paleolithic period to 300 BC.

‘It has never been so easy to set up a Studium Generale series.’ With these words Tilman Grünewald thanked speaker Frank den Hollander, who kicked off the Studium Generale series on complex networks on Monday 20 February.

The CNaVT exam is the official, international exam of Dutch as a Foreign Language for all who learn Dutch all over the world. The Catholic University of Leuven organizes the exam. The Dutch Language Union has commissioned this collaboration.

For the first time, astronomers have detected the presence of complex organic molecules, the building blocks of life, in a protoplanetary disc surrounding a young star. The discovery reaffirms that the conditions that spawned the Earth and Sun are not unique in the Universe. The results are published…

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.

Scientists often need to make sense of complex systems without knowing the important parameters or even without access to all the information. A collaboration of network theorists, including Diego Garlaschelli (IMT Lucca/Leiden), has now published a review article in the inaugural issue of Nature Reviews…

The thesis wishes to examine the pathways of thought underlying the creative act of music making and the performance practice of complex music from the late twentieth and early twenty-first century.

In this thesis, we extend the concept of null models as canonical ensembles of multi-graphs with given constraints and present new metrics able to characterize real-world layered systems based on their correlation patterns.

This dissertation consists of two parts, with the common theme

Promotor: Peter Stevenhagen

Manufacturers produce high-end technology mostly top-down with large machinery, but small particles are able to build structures by themselves from the bottom up. A major challenge is that these particles easily clump together. Leiden physicist Daniela Kraft has developed a method to use this phenomenon…

The building is far from finished, but the former ministry of Internal Affairs is looking more and more like the Academic building for the locations of the University of Leiden in the Hague that it has to become. This week I got a tour behind the scenes of the gigantic project, where I was able to see…

The Master Honours Classes & Challenges are part of Leiden’s honours education for master’s students. While the Honours Academy is responsible for the practical organisation, the education is coordinated by teachers of all faculties.

This thesis has three main parts. The first part gives an algorithm to compute Hilbert modular polynomials for ordinary abelian varieties with maximal real multiplication. Hilbert modular polynomials of a given level b give a way of finding all of the abelian varieties that are b-isogeneous to any given…

An international team of researchers including Leiden archaeologists has produced convincing evidence that 300,000 years ago pre-Neanderthal people had a high level of cognitive complexity. New insights into early human capabilities and behaviour.

The first successful Leiden Networks day took place on September 23, 2016. Six world-renowned speakers (see photo) in the field of complexity and network science provided their view on the field.

It's much easier to learn something if you're interested in it. But students' interests are often diverse and wide-ranging, says Sanne Akkerman, Professor of Educational Science. How do you cater for this in your teaching? Inaugural lecture 6 October.

On Friday 23 September 2016 the Leiden Complex Networks Network day, the LCN2 day, will take place in Leiden.

Work started today on the Kolffpad student complex, with 289 flats for students from Leiden University. Stichtnig DUWO will own the building and the University owns the site at the Bio Science Park. The building should be complete by mid-2023.

From a ruinous building site to a lively university building: that is the drastic metamorphosis that the Wijnhaven complex is going through at this moment. The pictures below already show impressions of the end result.

The Belgian elections are over. Now it is up to the formateur to form a cabinet, but that is difficult. Fauke Deceuninck, program leader of Politics and Governance at the Center for Professional Learning, explains to Speechmakers why that is.

Blijven ontwikkelen op academisch niveau is onontkoombaar in een snel veranderende arbeidsmarkt. Wij helpen u graag bij het actueel houden van uw kennis en vaardigheden. Voor een leven lang ontwikkelen moet u in Leiden zijn.

The social sciences are vital in navigating complexities, fostering understanding and bridging divides. This was celebrated during the faculty opening of the academic year.

Dr. Josien de Klerk, Associate professor in Global Public Health at Leiden University College The Hague recently published some of her work on HIV/AIDS. In collaboration with a team of interdisciplinary researchers from the Amsterdam Institute for Global Health and Development she came to the conclusion…