This thesis applies data mining in commercial settings in the telecommunications industry.

In this thesis we study products of linear error correcting codes.

Het doel van het RAISE Onderzoek is om te onderzoeken hoe veerkrachtige mensen omgaan met stress. We kijken specifiek naar hoe belangrijke biologische systemen, zoals de HPA-as en het immuunsysteem, samenwerken met de hersenen en de sociale omgeving om veerkrachtig functioneren na moeilijkheden in de…

Materials with strongly correlated electrons show some of the most mysterious and exotic phases of quantum matter, such as unconventional superconductivity, quantum criticality and strange metal phase.

Promotor: S.M. Verduyn Lunel, Co-promotor: S.C. Hille

What physics controls the properties of quantum matter, such as how electrons flow inside high-temperature superconductors? This question has captivated the physics community and industry for decades, in part due to the great technological potential such materials have, but also because they have resisted…

Promotor: Prof.dr. C.W.J. Beenakker

This thesis presents pioneering work on the panchromatic emission of some of the most luminous galaxies in the early Universe: star forming galaxies and active galactic nuclei.

With the help of quantum mechanics, digital quantum hardware may be able to tackle some of the problems that are too difficult for ordinary computers. But despite these expectations and the ongoing effort of the research community, reliable quantum computers are not yet realized in a lab setting.

This thesis combines field and laboratory studies to address some of the most pressing questions in the field of microplastic research.

The haplolepideous mosses (Dicranidae) comprise about 4000 species distributed over a wide range of habitats, with great gametophytic and sporophytic morphological variation. Their monophyly is well supported by the results of several molecular phylogenetic studies, which shed light on their relationships…

Een team met Leidse sterrenkundigen heeft watermoleculen waargenomen die zich met een snelheid van meer dan 200.000 km per uur van een jonge, zonachtige ster af bewegen. Dit is 80 keer zo snel als een kogel uit een AK47-geweer.

A brief review essay on some of the work that has been recently published in the emergent field of digital ethnography.

Discover the Summer School Program Population Health Management by LUMC and learn about strategies to deal with current issues and developments in healthcare.

Promotores: P. Stevenhagen, L. van Geemen (Università degli studi di Milano), Co-Supervisor: Ronald M. van Luijk

I have studied the hot, diffuse gas around and between galaxies. Specifically, I have used the EAGLE numerical simulations of galaxy formation to predict the properties of this gas, and I have used those properties to predict specific observables: soft X-ray absorption and emission lines.

This thesis seeks to combine two different research topics; Multi-Objective Optimization and Complex Network Analysis.

Electrons in a crystal lattice have properties that may differ from those of a free electron in vacuum.

The prevalence of obesity (BMI >40 kg/m2) has increased rapidly over the recent years, not only in adults, but also in children and adolescents.

Less than 1 in 10 drug candidates that enter phase 1 clinical trials actually gets approved for human use.

The aim of this project was to estimate emissions from lead products-in-use for the past, the present and the future and assess the development of toxicological risks associated with these products.

Promotor: W.Th.F. den Hollander Co-Promotor: F.M. Spieksma

De aarde, de planeet die wij thuis noemen! Dit is de derde planeet vanaf de Zon en staat op 150 miljoen kilometer. Een jaar op de aarde duurt 365 dagen en een dag 24 uur, precies zoals we gewend zijn. De aarde is 12.742 kilometer in doorsnede en weegt maar liefst 5.972 miljard miljard ton.

A tidal basin is an inland sea which is almost entirely enclosed by land and connected to the open sea by a tidal inlet. Through the tidal inlets interaction takes place between the tidal basin and the open sea.

Om te overleven op aarde heb je drie dingen nodig: een atmosfeer, water en zonlicht.

Met behulp van straling kan de isotopenverhouding van een skelet worden bepaald. Dit geeft informatie over de locatie waar onze voorouders leefden en wat zij consumeerden. Dr. Andrea Waters ontwikkelde een revolutionaire methode, waarmee het voedingspatroon van tienduizenden jaren geleden kan worden…

Boek over bestrijdingsmiddelen en waterkwaliteit

This thesis has shed light on some of the ways in which the local electrolyte composition can differ from the bulk and how these changes in the local reaction environment can determine the activity and/or selectivity of two important electrocatalytic reactions, namely, electrochemical CO2 reduction…

Development of indicators to assess decoupling of economic development and environmental pressure in the EU-25 and AC-3 countries.

Description of Biotic ligand models: making an inventory of available models & assessment of the variability of the predicted HC5 using the BLMs in different Dutch water types (2005 - 2007)

Fate and toxicity of copper nanoparticles was related to the water chemistry of the environment and pristine size.

Description of Atlas of the surfacewater concentrations of pesticides in the Netherlands, a pilotstudy.

Wij hebben maar één maan, maar wist je dat sommige planeten er heel veel hebben? Jupiter bijvoorbeeld heeft er meer dan negentig! Kun je je voorstellen hoe de hemel eruit ziet voor een alien die op Jupiter woont? Een van die manen is Europa, die waarschijnlijk een oceaan van vloeibaar water heeft onder…

We gaan het water op! Op zaterdag 30 augustus suppen we samen met alumnus Merijn Tinga, ook wel bekend als de Plastic Soup Surfer, door de Leidse grachten.

Freshwater and brackish water ecosystems are arguably the most vulnerable ecosystems on earth, due to concentrated human developments in and around them. The Pontocaspian (PC) region located at the border of Europe and Asia contains a variety of brackish water ecosystems and unique inhabitants, known…

Promotores: H.A. Udo De Haes, P.M. Brakefield

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.

Exploring linkages between energy and material use and implications for sustainable development.

This thesis focusses on the temperature structure in protoplanetary disks. The relation between structures seen in the dust and gas-phase molecules is investigated.

We show that Kirchhoff ’s law of conservation holds for non-commutative graph flows if and only if the graph is planar. We generalize the theory of (Euclidean) lattices to infinite dimension and consider the ring of algebraic integers as such a lattice.

Promotor: A. Achúcarro, Co-Promotor: G.A. Palma

This thesis describes how different colours of light affect various aspects of the growth and development of Arabidopsis and tomato plants⁠.

Make more fluid: In condensed matter systems, electrons can acquire unusual properties from their interaction with the atomic lattice.

In this thesis, we have used numerical approaches to study the effects of translational symmetry breaking on strange metallic systems as realised by the holographic duality⁠.

This thesis is about cosmological inflation and its relation to observations.

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’.

This thesis describes the design, synthesis, and immunological evaluation of varying (neo)antigenic peptide conjugates containing either a TLR2 or a TLR7 agonist.

n this thesis we study curves. In the first half, we study moduli spaces of curves and Gromov-Witten invariants, certain kinds of curves counts. We employ logarithmic geometry for this.

Leiden University offers a unique range of summer courses where you can broaden or deepen your knowledge or share your expertise with fellow students. The choice of academic courses is very diverse, ranging from Law, Big Data, Languages and Linguistics to Maths and Natural Sciences, Biology, Biomedical…

Description of Development of a low cost technology for in-situ treatment of groundwater for potable and irrigation purposes (TiPOT) (2004 - 2007)