Op 1 april 2020 verdedigde Marc Broekema zijn proefschrift 'Cognitive Bias in the Judgment of Business Valuations and Valuators'. Het promotieonderzoek is begeleid door promotor prof. dr. J.I. van der Rest.

SuperCode: Sustainability PER AI-driven CO-DEsign

Promotores: Prof.dr. M. Danhof, Prof.dr. D.R. Stanski

Predictive maintenance (PdM) is a maintenance policy that uses the past, current, and prognosticated health condition of an asset to predict when timely maintenance should occur.

Promotor: M. Danhof Co-promotor: O.E. Della Pasqua

The aromatic infrared bands (AIBs) seen throughout the interstellar medium (ISM) are generally thought to be carried by polycyclic aromatic hydrocarbons (PAHs) and their nitrogen analogues (PANHs).

The ability to count is a property not often attributed to materials, despite the abundance of memory in materials. Regardless of how a material stores information, it is often difficult to retrieve exactly ‘what’ a material remembers.

In a typical glycosylation reaction, a donor is activated to form a (variety of) electrophilic species which can react with a nucleophilic acceptor, following a reaction mechanism having both SN1 and SN2 character.

Despite being the object of intense study, embryonic development has been difficult to model due to a number of reasons. First, complex tissues can be comprised of many cell types, of which we probably only know a subset.

All crested and marbled newts (the genus Triturus) suffer from an unusual genetic abnormality, called a balanced lethal system, that kills exactly half of their offspring. How can a trait so disadvantageous have survived millions of years of natural selection?

Vancomycin is a last-resort antibiotic for the treatment of many Gram-positive bacterial infections, while remaining inactive against Gram-negative strains.

Stochastic resetting is simple enough to be approached analytically, yet modifies stochastic processes in a non-trivial way.

Promotors: Prof.dr. P.J. Punt, Prof.dr. C.A.M.J.J. van den Hondel

​Charlotte Laarman, die deel uitmaakte van het VICI-project 'Gender and Migration' promoveerde op 27 juni 2013 op het proefschrift 'Oude onbekenden. Het politieke en publieke debat over postkoloniale migranten, 1945-2005' (Uitgeverij Verloren Hilversum 2013).

During post-embryonic development into adults, animals face an environment that fluctuates constantly. For example, in nutrient availability, temperature, and osmolarity (e.g., salt concentration).

Promotor: Prof.dr. B. van de Water

Promotor: H.P. Spaink, A.H. Meijer Co-promotor: R. Marin-Juez

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

Promotores: Prof.dr. G.W. Canters, Prof.dr. T.J. Aartsma

Universiteit Leiden blijft graag in contact met haar alumni. Contactgegevens houden we daarom graag up-to-date. Blijf op de hoogte van het laatste nieuws voor alumni en ontvang uitnodigingen voor alumni-evenementen op het juiste (mail)adres.

Het onderzoek gaat over de vraag op welke wijze en op welk niveau studenten van de opleiding voor leraar basisonderwijs theorie en praktijk kunnen integreren en hoe de inrichting van hun leeromgeving, toegespitst op het vak rekenen-wiskunde en didactiek, daaraan kan bijdragen.

Met ons onderzoek en onderwijs dragen we bij aan een betere wereld. Onze onderzoekers duiden ontwikkelingen in wetenschap en maatschappij, en helpen mee om oplossingen te vinden voor uitdagingen waarmee de samenleving zich geconfronteerd ziet.

Leerkrachten helpen om een pleegkind goed op te vangen. Dat komt ook het pleegkind ten goede!

Optimization tasks in practice have multifaceted challenges as they are often black box, subject to multiple equality and inequality constraints and expensive to evaluate.

Van ambitie tot actie: autonoom leren structureel verankeren in het Leidse onderwijs

During my PhD research, I studied the photon statistics of light emitted by a microcavity that contains a single quantum dot (QD) on resonance.

The overall objectives of my thesis are to investigate the dynamics of the sorghum root microbiome and to explore the beneficial effects of the root microbiome on sorghum growth and stress tolerance.

Outflows are crucially important for the gas budget and evolution of luminous star-forming galaxies and AGNs, with observed mass outflow rates of the same order as the star formation rate. Greater star formation and black hole growth lead to more intense feedback and outflows, resulting in self-regulated…

Promotores: J.A.van Veen, P.L.G.Klinkhamer. Co-promotor: E.E.Kuramae

Pectin is a plant cell wall polysaccharide made of mainly D-galacturonic acid (GA) subunits. The potency of the filamentous fungus Aspergillus niger to naturally secrete high amounts of pectinases to degrade pectin has been utilized for the industrial production of pectinases.

Of all the mass in our Universe, 80% is thought to consist of a hypothetical and invisible substance called dark matter (DM).

In 2019 hebben het Europees Parlement en de Raad de Richtlijn Preventieve Herstructurering (2019/1023) aangenomen, die voorziet in minimale harmonisatie van onder andere preventieve herstructureringskaders (preventive restructuring frameworks, 'PRF'). Dit boek biedt verdiepende analyses van de implementatie…

Promotor: F. Arbab

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

Inspired by natural photosynthesis, perovskite-based photoelectrochemical (PEC) systems are being developed for artificial photosynthesis, aiming to enhance solar-to-hydrogen conversion for green energy.

Childhood obesity is an increasing health issue. In the first part of this thesis comorbidities in children with obesity were studied, concerning the diagnostic process and dosing regimens.

Freshwater is an important resource, but at a great risk of species decline due to habitat loss, pollution and over-exploitation, and invasive alien species.

Promotores: Prof. dr. G.R. (Geert) de Snoo, Dr. E. (Ester) van der Voet

In this thesis, the role of mast cells in atherosclerosis and novel therapeutic strategies to inhibit atherosclerosis progression are discussed. The first part of the thesis specifically focuses on the relation between mast cells and advanced human atherosclerotic plaque characteristics.

For centuries astronomers studied the Universe by collecting light. Nowadays, we are living in times of great technological advancements, which allow us to explore our Universe in a new way - though gravitational wave radiation.

Overall dispersion in LCA as result of inherent uncertainties, spread and unrepresentativeness.

In this dissertation iron-based homogeneous catalysts were synthesized, characterized and investigated for water oxidation activity.

Utilizing the polymeric platform of polypept(o)ides, this thesis describes synthesis and investigation of novel triblock copolymers to obtain carrier systems with multiple compartments for efficient siRNA delivery. Although the individual microstructure of nanoparticles differs depending on the polymeric…

The radio sky harbours both galactic and extragalactic sources of arcminute- to degree-scale emission of various physical origins. To discover extragalactic diffuse emission in the Cosmic Web beyond galaxy clusters, one must image low–surface brightness structures amidst a sea of brighter compact fore-…

Acute cardiovascular clinical events such as myocardial infarction and cerebral stroke represent the major cause of death in Western societies. These pathologies are primarily resulting from atherosclerosis, a progressive condition characterized by the accumulation of lipids, immune cells, and fibrous…

Parkinson's disease is the second most common neurodegenerative disease in the world. One of its symptoms is the loss of dopaminergic neurons in the substantia nigra pars compacta.

In Wat te doen met anti-democratische partijen? Geven Bastiaan Rijpkema en Paul Cliteur een uitvoerig commentaar op de rede van G. van den Bergh (1890-1966), een Amsterdamse hoogleraar die in 1936 een belangrijke oratie uitsprak waarmee hij het begrip “weerbare democratie” introduceerde.

Aan de Universiteit Leiden worden meer dan tachtig talen onderwezen. Lorre is een hulpmiddel voor mensen die een nieuwe taal willen leren waarmee zij met behulp van een computerprogramma hun uitspraak in vreemde talen kunnen verbeteren.

Balsaminaceae is a diverse plant family characterized by a huge floral morphological diversity.

In this Yearbook you will find some fascinating examples of what was done in 2021, not only by ourselves, but also by our international colleagues.