Promotores: K.J. Batenburg, B. Koren

Promotores: R. Tijdeman, K.J. Batenburg

Promotor: R. Tijdeman, Co-promotor: H.J.J. te Riele

Promotor: S.J. Edixhoven, Co-promotor: K.J. Batenburg

Promotor: K.J. Batenburg

This thesis involves three topics: benchmarking discrete optimization algorithms, empirical analyses of evolutionary computation, and automatic algorithm configuration.

The research in this thesis is focused on tomographic reconstruction based on two imaging modalities in electron microscopy.

This thesis describes how complex and real-world relevant analytical solutions can be found starting from a simple Nagumo problem posed on one or two-dimensional lattices.

Promotor: Prof.dr. K.J. Batenburg

Optical projection tomography (OPT) is a tomographic 3D imaging technique used for specimens in the millimetre scale.

Bacterial chemosensory arrays are protein assemblies that are the key structural and functional component for motile bacteria to sense their internal or environmental chemical signals.

What happens to electrical waves that have to cross gaps in insulation material around nerves in the human body

Promotor: Prof.dr. W.T.F. den Hollander

With tomography it is possible to reconstruct the interior of an object without destroying.

This dissertation is an experimental study of laser-generated, atmospheric pressure, transient toroidal helium plasmas.

Tomography is a powerful technique to non-destructively determine the interior structure of an object.Usually, a series of projection images (e.g.\ X-ray images) is acquired from a range of different positions.

Promotor: K.J. Batenburg, Co-promotor: A.W. van der Vaart, B. de Smit

Met zijn presentatie tijdens het Nederlands Mathematisch Congres over nieuwe tomografie-technieken heeft Joost Batenburg, onderzoeker bij de Universiteit Leiden en bij het Centrum voor Wiskunde en Informatica (CWI) in Amsterdam, de eerste Philips Mathematics Prize voor promovendi gewonnen.

The NWO (The Netherlands Organization for Scientific Research) awarded prof. Joost van Batenburg with the Vici grant 2015 for his research project ‘Real-time 3D Tomography’.

Promotores: Prof.dr. D. Bouwmeester, Prof.dr. A. Fiore (TU Eindhoven)

Promotor: Prof.dr. E. Eliel, Co-Promotor: M.J.A. de Dood

Promotie

We consider the propagation of electrical signals through nerve fibres.

Inverse problems are problems where we want to estimate the values of certain parameters of a system given observations of the system. Such problems occur in several areas of science and engineering. Inverse problems are often ill-posed, which means that the observations of the system do not uniquely…

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The explosive radiation and diversification of the advanced snakes (superfamily Colubroidea) was associated with changes in all aspects of the shared venom system. Morphological changes included the partitioning of the mixed ancestral glands into two discrete glands devoted for production of venom ormucous…

This dissertation studies the Asymptotics of Bayesian nonparametric inference for Gaussian linear models.

In this thesis we study bistable reaction-diffusion equations on lattice domains.

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Promotor: Prof.dr. H.J.M. de Groot, Co-promotor: Francesco Buda

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Bacteria have the ability to alter their morphology in order to adapt to changing environments.

Promotor: S.M. Verduyn Lunel

Shape and biological function are tightly connected. Physical descriptions are used to connect the shape of a biological system with its function.

In the first part, we introduce a new condition, called toric-additivity, on a family of abelian varieties degenerating to a semi-abelian scheme over a normal crossing divisor.

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This thesis is is made of three parts. The first part describes a generalization of the Chabauty's method, that can be used to determine the rational points of a curve such that s+g>r+1, where g is the genusof the curve, r is the rank of the Mordell-Weil group of the jacobian of the curve and s is…

Promotor: J. Zaanen, Co-Promotor: V. Juricic

Cryogenic electron microscopy (cryo-EM) is a powerful technique used to visualize the inside of cells and to study specific protein complexes. Within this thesis, I describe the use of various cryo-EM techniques to gain insight into the structural changes of the human pathogen, Vibrio cholerae, as it…

Atoms and molecules are the basic units of matter. If we keep dividing a bar of gold or a glass of water into smaller parts, at the end we are left with a single gold atom or a water molecule.

Wiskunde en Natuurwetenschappen, Instituut Biologie Leiden (IBL)

Wiskunde en Natuurwetenschappen

In 2021 communiceerde Bureau Algemene Bestuursdienst (Bureau ABD) het plan om hun visie op publiek leiderschap te vernieuwen. Om deze nieuwe visie nauw aan te laten sluiten bij de behoeften en uitdagingen uit de praktijk, én wetenschappelijk te onderbouwen is het Leiden Leadership Centre (LLC, Universiteit…

Elektrische signalen bewegen als een golf door onze zenuwbanen. De wiskundige modellen voor deze bewegingen konden nog niet alle biologische eigenschappen van de zenuwbanen goed beschrijven. Promovendus Willem Schouten-Straatman bracht hier verandering in door de bestaande modellen te verbeteren. 'Ik…