This work is dedicated to interpreting in cohomological terms the special values of zeta functions of arithmetic schemes.

Promotores: Prof.dr. C.A.J. Knibbe, Prof.dr. M. Danhof, Prof.dr. K. Allegaert (Leuven)

Polls conducted by I&O research point to a political landslide. What's in store for the Netherlands? The polls show that the new party of MP Pieter Omtzigt is well-positioned for the upcoming election, with an expected 31 seats, but only 3 for the Christian Democratic Alliance (CDA) party. It is obvious…

The origin and evolution of galaxies are closely tied to the cyclic feedback processes between stars and the interstellar medium (ISM).

In this dissertation, matching, entropy, holes and expansions come together. The first chapter is an introduction to ergodic theory and dynamical systems.

The aim of the project is to unravel the genetic and contact relations between the indigenous languages of Mesoamerica (Mexico and western Central America) and the Middle Andes region (Ecuador, Peru, Bolivia), as part of a larger endeavor to understand the historical process of the peopling of the Americas…

Voters sent a clear signal in the recent Dutch provincial council elections with the 'monster' victory for the Farmer-Citizen Movement (BoerBurgerBeweging, BBB). This sign of ‘social resistance’ has consequences for the policy on nitrogen emissions, according to Geerten Boogaard, Professor of Local…

Ancient historians have long been aware that patterns of coin circulation can shed light on levels of economic integration in the Roman Empire. More than forty years ago, Hopkins argued that large amounts of tax money were spent in the frontier provinces and that the non-military provinces recouped…

A comprehensive analysis of the state of play, the design of monitoring mechanisms, and creation of a toolbox of support measures.

PhD defence

How did early modern people find out about new knowledge? And did that make them more willing to accept innovation? In the coming years, we will study how and to what effect, new knowledge anchored among the wider public in the early modern Low Countries.

The Leiden Science Young Talent Award is awarded yearly to a student who completed their bachelor’s degree with an excellent thesis.

Prof.dr. P. Stevenhagen, Prof.dr. K. Belabas (Universite Bordeaux I)

Food security is challenged by a growing global population and by climate change. Drought and soil salinity are considered the most important ones that inhibit crop yield and distribution. Worryingly, climate change is predicted to increase not only their frequency and severity, but also their co-occurrence,…

Heart failure is a major health care problem with high mortality.

On the 23rd of June Arianna Sacco successfully defended a doctoral thesis and graduated.

The thesis mainly contributes to the characterization of Majorana fermions as they appear in the Condensed Matter context.

In this thesis we use Josephson and noise scanning tunneling microscopy for the study of conventional, unconventional (iron-based) and disordered superconductors. On the one hand, Josephson scanning tunneling microscopy allows us to directly visualize the superfluid density with high spatial resolut…

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

The dissociative chemisorption of a molecule on a transition metal surface represents a rate-limiting step in many heterogeneously catalyzed processes, whereby most chemicals are made. In spite of the importance of this reaction, an accurate first principles approach to modeling it does not yet exist.…

Dementia is a progressive disease, diagnosed at a relatively late stage when intervention may not be effective. Aim of the research is to study scans of brain networks to help discover the early network changes related to dementia. Early diagnosis may benefit effectiveness of future treatment.

NeuroSoC concentrates on multiprocessor systems on chip with in-memory neural processing units.

Promotor: Prof.dr. K.H. Kuijken, Co-Promotor: Dr. H.Hoekstra

Climate change is a challenge for both current and future generations. New biological resources have to be developed in order to meet the demand for energy as well as the demand for food.

Source: Journal of Investigative Dermatology, Volume 135, pp. S59-S59 (2015)

I will give a general introduction to the field of molecular electronics, its history, methods and challenges. I will also introduce the subject of my investigation and provide a brief outlook to the remainder of our thesis.

Methods for accurately computing the interaction of molecules with metal surfaces are critical to understanding and thereby improving heterogeneous catalysis.

Promotor: H.J.A. Röttgering, Co-promotor: G.K. Miley

Forming at the nodes of the Cosmic Web and growing hierarchically via mass accretion, galaxy clusters are the largest virialized halos in our universe, composed of dark matter (DM; ≥85%), ionized hot plasma in the intracluster medium (ICM; ≥10-15%), and galaxies (≥1-5%).

This thesis provides explicit expressions for the density functions of absolutely continuous invariant measures for general families of interval maps, that include random maps and infinite measure transformations, not necessarily number systems.

The dissociative chemisorption of methane on metal surfaces is of fundamental and practical interest, being a rate-limiting step in the steam reforming process. The reaction is best modeled with quantum dynamics calculations, but these are currently not guaranteed to produce accurate results because…

In this dissertation, we work towards an experiment in which we aim to bring a micrometer sized magnet at the tip of a soft cantilever into a superposition.

The effectiveness of the skin barrier underlies the outer layer of the skin: the stratum corneum (SC). However, in several skin diseases this barrier is impaired. In two inflammatory skin diseases, atopic eczema and Netherton syndrome, an increased level of monounsaturated fatty acids (MUFAs) has been…

This book explores the production and use of medieval manuscripts that contain classical Latin texts. Six experts in the field address a range of topics related to these manuscripts, including how classical texts were disseminated throughout medieval society, how readers used and interacted with specific…

LUCIS funded several research programmes to boost interfaculty and interdisciplinary cooperation and to widen the involvement of LUCIS members.

Book by Dr. Mariana Françozo resulting from her research into the collection of count Johan Maurits of Nassau-Siegen, governor of the Dutch colony in Northeastern Brazil between 1637 and 1644.

In this thesis three different topics in number theory are studied.

This long term project in Jordan is at the basis of many specialists’ studies and has several off-shoot projects. The project, with its many approaches, is also a framework for much teaching in Levantine Archaeology at Leiden University, especially concerning fieldwork methods, artefact studies, research…

In this 3-volume set of primary sources, Lionel Laborie and Ariel Hessayon bring together a wide range of vital sources for the study of prophecy in the early modern world. This meticulously edited collection includes rare material and fascinating manuscripts published in English for the first time.

Linking botanical collections, peoples, and illustrations in seventeenth century Dutch Brazil

We review the state-of-the-art in the theory of dissociative chemisorption (DC) of small gas phase molecules on metal surfaces, which is important to modeling heterogeneous catalysis for practical reasons, and for achieving an understanding of the wealth of experimental information that exists for this…

How did Angkor interact with regional urban centers? How did the settlement system impact the society's agricultural system and regional resilience?

Do offshore windfarms affect the local biodiversity of the pelagic fish community and are fish deterred or attracted by sounds?

Assessing the effects of landscape and land-use changes on the visibility of archaeological landscapes in Central-Southern Italy.