This dissertation focuses on developing new mathematical and statistical methods to properly represent time-varying covariates and model them within the context of time-to-event analysis.

Promotor: Prof.dr. F.S. de Boer, Co-promotor: D. Clarke

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

Promotor: Prof.dr. B. van de Water, Co-promotores: L.T.M. van der Ven, A.S. Kienhuis

Promotor: Prof.dr. J.N. Kok, Co-promotor: F.J. Verbeek

Promotor: B.van de Water, Co-promotor: L.S.Price

Lezing

Promotor: Prof.dr. W.J.G.M. Peijnenburg

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.

From surface science towards industrial practice using high-pressure scanning tunneling microscopy.

Peter Grunwald

Synthetic microswimmers take an important place within the interdisciplinary field of active soft matter.

Lysosomal storage disorders (LSDs) are a group of orphan diseases characterized by lysosomal dysfunction or impaired lysosomal catabolism and affect collectively about 1 in 5000 live births.

Ice, the solid state of water, plays an important role on our planet as well as the entire universe.Despite the fact that an individual water molecule has a very simple structure, its chemical bonding in the solid phase can be surprisingly complex.

In this thesis, mathematical modeling and simulation was applied as a tool to inform quantitative decision making in oncology drug discovery and development.

Promotie

Promotie

Decarbonizing the building stock is critical for realizing the climate-neutral target for the Netherlands.

Drug-induced liver injury (DILI) is one of the main reasons for drug attrition during pre-clinical and clinical phases of drug development as well as for drug withdrawal post-marketing.

Hoogleraar Fons Verbeek, verbonden aan de informatica- en biologie-instituten van de Universiteit Leiden, heeft de fascinatie om alles wat we niet direct kunnen zien, toch in beeld te brengen. Op SleutelstadFM vertelt hij dat door het omrekenen van 2 dimensionale (2D) beelden naar 3 dimensionale (3D)…

M. Danhof, Co-promotores: J. Freijer, A. Yassen

Het Leiden Institute of Advanced Computer Science feliciteert alumnus Pepijn van Heiningen en de met de Technische Hochschule Köln gedeelde promovenda Samineh Bagheri. Allebei wonnen ze afgelopen week op het SSCI 2016 congres over computational intelligence in Athene een award voor de hoge kwaliteit…

Growth hormone profiles are pulsatile and highly variable between individuals, limiting the implementation of mathemathical models to quantify an individual's secretion.

Promotores: Prof.dr. W.J.G.M. Peijnenburg & Dr. M.G. Vijver

Accurate prediction of the unbound drug concentration-time profile at the CNS target site is crucial for the assessment of the right drug concentration-effect relationship. PBPK models have supported the PK prediction of the CNS target sites and the translation of PK data between species and between…

Promotie

Neurodegenerative diseases, including Parkinson’s disease (PD), are increasing in prevalence due to the aging population. Despite extensive study, these diseases are still not fully understood and the lack of personalised treatment options that can target the cause of the diseases, rather than the symptoms,…

Promotor: Prof. dr. A.G.G.M. Tielens

It is a common technique in global optimization with expensive black-box functions to learn a surrogate-model of the response function from past evaluations and use it to decide on the location of future evaluations.

Over the last three decades, the discovery of exoplanets has revealed the boundless variety of worlds beyond our own Solar System⁠. Majority of planetary systems contain short-period planets that are larger than Earth but smaller than Neptune⁠.

Fungal infections pose a significant threat to individuals with compromised immune systems and despite advancements in diagnosis and treatment, they continue to jeopardize patient’s health.

Promotor: P.D. Grünwald

Promotor: Prof.dr. F. den Hollander, G.Maillard

Business Process Model and Notation (BPMN) has become the standard for business processes diagrams.

In surface science there is great effort to move from studying simple, flat model surfaces in vacuum to investigating more complex model catalysts in gas environments (in situ). This thesis gives three examples of such studies using microscopy and spectroscopy.

The aim of this thesis is to present novel techniques for proving cryptographic schemes secure against quantum adversaries. Most results are within the context of an idealized model called the ‘quantum random-oracle model’.

Sepsis is a life-threatening condition caused by a dysregulated host response to infection, it is associated with significant morbidity, mortality, and with a high financial burden on global healthcare systems. Bacterial infections are the primary cause of sepsis, but the growing prevalence of antimicrobial…

Promotores: Arjen Doelman, Jens Rademacher, Max Rietkerk

The parabolic Anderson model (PAM), which is the Cauchy problem for the heat equation with random potential. The PAM is a mathematical model that describes how mass (i.e. matter or energy) flows in a medium in the presence of a field of sources and sinks.

To limit the effects of climate change, global average temperature since pre-industrial measurements are to be kept well below 2 °C preferably even at 1.5 °C.

Hij praat snel en enthousiast. Logisch, want Gerard van Westen is als de machinist op een heel snelle trein. Het eindstation: een virtuele mens, bestaand uit algoritmen die voorspellen wat een toegediende stof doet in ons lichaam. De trein is al een heel eind op weg. De farmaceutische industrie is ook…

At the moment, over 350.000 chemicals are registered worldwide for production and use. Their application, however, may harm human health and the environment.

Netherlands Statistics (CBS), Leiden University and the University of Amsterdam have started a collaboration in the form of a research project titled 'Enriching official economic statistics using data-driven modelling techniques'.

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.

A novel mathematical model describes spatial-temporal drug distribution within one or more brain units, which are cubic representations of a piece of brain tissue with brain capillaries at the edges.

In this thesis we study quantum transport phenomena on the nanometer scale, in two classes of materials: topological insulators with induced superconductivity and graphene superlattices.

Promotor: Prof.dr. B.R. Katzy

Nu het steeds beter lukt om de moleculaire gegevens van cellen en weefsels te ontsluiten, schept dat ook direct een nieuwe uitdaging. Want hoe vind je uit die enorme hoeveelheid data de juiste informatie voor onderzoek?

Promotores: J. Kok, M. Chaudron (Chalmers University)