In the thesis the dynamics of strategies is studied from two perspectives.In the first part of the thesis strategies are considered to be opinions present in a community.

Jelke Bethlehem (Leiden University, Institute of Political Science) gives an overview of many aspects of polls: questionnaire design, sample selection, estimation, margins of error, nonresponse and weighting. As such, it is useful both for readers who want to gain a better understanding of the ins and…

Unfolding potential

Article in the journal Irish Political Studies discussing the challenge of aggregating opinion polls and presenting a method to better model major sudden political and societal events. This can can enhance opinion poll reporting in the media.

This research cluster is a part of the Institute of Political Science’s research programme ‘Institutions, Decisions and Collective Behaviour’. Its members focus on the democratic role of citizens and the representative links between voters and politicians.

In this thesis, dynamic testing principles were applied to examine young children's potential for learning. Our studies focused on the role of cognitive flexibility, to further increase our understanding of the cognitive processes involved in children's ability to learn from instruction and feedback,…

An assessment approach that tailors to children’s instructional needs

Can dynamic testing provide us with insight in children’s potential for learning?

BlaC is the β-lactamase of Mycobacterium tuberculosis. We show that it can recover from inhibition by clavulanic acid and that phosphate helps it do so.

Promotor: Prof.dr. S.F. Portegies Zwart, Co-promotor: D.C. Heggie

The research of our group is centered around dynamical systems, functional analysis and their interplay.

Dynamic nuclear polarization with paramagnetic agents can enhance nuclear magnetic resonance signals by orders of magnitude. The mechanism of enhancement depends a.o. on the magnetic resonance properties of the agents used. Electron spin relaxation times at NMR relevant magnetic field/microwave frequencies,…

The research of this programme is centered around dynamical systems, functional analysis, and their interplay.

Actin Polymerization and Membrane Physics in Living Cells: Analysis of cell spreading mechanisms

If gifted children are experts in using strategies, why do they experience problems with learning? Why do they underachieve?

Promotor: W.Th.F. den Hollander

Phospholipase A/acyltransferase 3 (PLAAT3) and PLAAT4 are enzymes involved in the synthesis of bioactive lipids. Despite sequential and structural similarities, the two enzymes differ in activity and specificity.

Promotor: Prof.dr. W.Th.F. den Hollander, Co-promotor: R. Fernandez

Promotor: J.W. van Holten

Promotor: Huub de Groot, Co-promotor: Francesco Buda

What is the relationship between outcomes of dynamic testing and cognitive flexibility in young children?

On 8 July 2020, Andres Sarmiento Lamus defended his thesis 'The Proliferation of Dissenting Opinions in International Law'. The doctoral research was supervised by Prof. L.J. van den Herik and Prof. Y.A.A.S. Radi (UCLouvain).

The genomic DNA of every organism is organized and compacted in order to fit inside the cell. This is achieved by the joint action of numerous architectural proteins that aid in folding the genome. Genome folding is tightly interconnected with transcription, with genes in certain regions being silenced,…

Does a moving hybrid zone leave a genomic footprint?

John van Noort

Promotor: H.J. van den Herik, B.R. Katzy, Co-promotor: K. Sailer

Cell adhesion signaling

Making a dynamic substance stock model in order to conduct scenario analyses and make forecasts.

Chemical reactions go hand-in-hand with an energy exchange with the environment in which they take place. Surfaces offer a variety of energy dissipation channels, constituted by the nuclear and electronic degrees of freedom of the atoms at the interface. Aiming at an improved future harvesting of energy,…

Promotor: S.M. Verduyn Lunel, Co-promotoren: M.F.E. de Jeu, S.D. Silvestrov

What is the optimal investment policy according to which a firm adapts its capacity in a competitive market?

Chromatin is an ubiquitous protein-DNA complex that forms the structural basis of DNA condensation in all eukaryotic organisms.

In the early universe, the dynamics of the Higgs field can give rise to many interesting phenomena.

This research group is interested in the physics of living cells, especially their cytoskeleton dynamics under defined external stimuli.

Developing methodes to understand the evolution of patches in natural ecosystems

Promotor: Promotor: W.Th.F. den Hollander, Co-promotor: V. Sidoravicius.

When a star gets too close to a supermassive black hole, it is torn apart by strong tidal forces in a tidal disruption event (TDE).

Schemas are knowledge structures that allow us to make efficient judgments about the world without the cost of memorizing every detail of previous experiences. It has long been known that schemas can enhance long-term memory for related information.

Throughout all domains of life, from bacteria and archaea to eukaryotes, genomes adopt well-organized three-dimensional structures that can change in space and time to accommodate preferred transcriptional programs for environmental adaptation, the maintenance of cellular identity and differentiation…

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.

Wiskunde en Natuurwetenschappen, Centrum voor Milieuwetenschappen Leiden (CML)

The intracluster medium (ICM) is a hot, tenuous and X-ray emitting gas that pervades galaxy clusters.

Promotor: Prof.dr. G.J. Kroes

This dissertation shows that dialogical logic constitutes a powerful and flexible general framework for the development and study of various logical formalisms and combinations thereof.

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

This functional genomics project aims at understanding the biology of the underlying mycelium differentiation and autolysis processes in much more detail.

Catalysis is of extreme relevance in the production of everyday materials and plays a central role in many aspects of our life.