Glycosidases are important enzymes in the turnover of polysaccharides and glycoconjugates, and are involved in a range of human pathologies including genetic disorders such as Gaucher and Pompe disease, but also in various cancers.

Promotor: Prof.dr. H.S. Overkleeft

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

In the last decades, activity-based protein profiling (ABPP) has emerged as a powerful chemical tool that may aid the ever-challenging drug discovery process.

To this day, all cyclophellitol-based inhibitors and ABPs have been close analogues of their natural substrate counterparts. As a result, these probes showed high selectivity towards their target glycosidases.

Promotor: H.S. Overkleeft, Co-promotor: M. van der Stelt

Promotor: Prof.dr. T. Hankemeier

Promotores: H.S. Overkleeft, G.A. van der Marel, Co-promotor: B.I. Florea

Promotores: Prof.dr. H.S. Overkleeft, Prof.dr. G.A. van der Marel

This thesis aimed to investigate the impact of exposure dynamics, relative contributions of ENPs(particle) and ENPs(ion), and dosing regimens on the toxicity of ENPs varying in different physico-chemical properties, on the composition and functioning of soil microbial communities.

The adenosine receptors are proteins that reside in the extracellular membranes of cells. Activation of adenosine receptors plays a role in many physiological and pathological processes, such as immune responses and cancers.

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

Lezing, Astronomy on Tap

In de afgelopen jaren is het verzamelen en verwerken van tal van gegevens aanzienlijk toegenomen. Met behulp van nieuwe technologieën zoals data mining wordt getracht kennis te halen uit verzamelde gegevens. Vaak wordt gezocht naar profielen die eigenschappen of risico's van bepaalde groepen beschrijven.…

Lysosomal glycosidases are acid hydrolases that fragment glycoconjugates in lysosomes.

Gedupeerden zijn een rechtszaak begonnen tegen etnisch profileren door de Koninklijke Marechaussee. Peter Rodrigues, hoogleraar immigratierecht zegt dat etniciteit nooit het belangrijkste criterium mag zijn om iemand staande te houden en verwijst naar een eerdere uitspraak van de Hoge Raad.

Verken ons wonderbaarlijke universum vanuit de plaatselijke kroeg!

Laatste technologische ontwikkelingen op het gebied van datamining en profilering.

Has there been continuity or change in US counterterrorism policy since 9/11? What factors led to the continuity or change, and how do we classify any such continuity or change?

Promotor: H.S. Overkleeft, Co-Promotor: B.I. Florea

Acute cardiovascular syndromes, including myocardial infarction or stroke, are the principal cause of death in the Western society. The main underlying pathology of cardiovascular diseases is atherosclerosis, which is caused by the accumulation of lipids and inflammatory cells in the vessel wall, in…

This dissertation consists of two parts, with the common theme

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

De multidisciplinaire minor De (on)rechtvaardige samenleving onderzoekt sociale rechtvaardigheid in Nederland. Je kijkt vanuit verschillende invalshoeken naar thema’s als armoede, discriminatie, woningnood, klimaat en migratie. Door praktijkgerichte opdrachten en reflectie op je eigen rol in de samenleving,…

Glycoside hydrolases (glycosidases/GHs) are widely abundant enzymes in all kingdoms of life and are important biocatalysts that catalyze the hydrolysis of glycosidic linkages in oligo/polysaccharides, glycoproteins and glycolipids with tremendous efficiency

The main research question of this thesis was: Can nitrogen cycling on dairy farms on peat soil in the Dutch Green Heart area be improved by adapting management to the nitrogen supply from soil and by using other grassland species and crops without affecting milk production?

Het was al duidelijk dat de Belastingdienst jarenlang met zwarte lijsten werkte met daarop namen van mensen met een, volgens de fiscus, hoog frauderisico. Maar rapporten van onderzoeksbureau PwC maken duidelijk hoe stelselmatig de Belastingdienst discrimineerde bij het bepalen wie er op die lijst th…

Promotor: C. W. J. Beenakker, Co-promotor: J. K. Asboth

Het Leiden Advocacy Project on Plastic (LAPP) is een pro bono initiatief aangaande juridische vraagstukken omtrent plastic. LAPP is opgericht om het toenemende probleem van plasticvervuiling aan te pakken en onderzoek te doen naar juridische kwesties gerelateerd hieraan. Studenten werken hierbij als…

DNA carries various forms of information. Out of these forms of information the most well-known is classical genetic information.

Halbe Zijlstra stelde, na het incident met rapper Typhoon, dat etnisch profileren 'erbij hoort' omdat 'bepaalde bevolkingsgroepen nu eenmaal zwaarder vertegenwoordigd zijn in criminele activiteiten'. Maar etnisch profileren is wettelijk verboden en daar zijn goede redenen voor.

Like a mixture of oil and water, lipid membranes separate into two liquid phases.

The research presented in this thesis makes use of small molecules (as H2 , D2 and O2 ) on well-defined single crystal surfaces (flat Pt(111), flat Cu(211) and curved Pt(111)) to elucidate the role of surface structure and degrees of freedom in the reactant in specific surface reactions.

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: G. J. Kroes

Dissociative chemisorption is an important reaction step in many catalytic reactions.

Congres/symposium

Understanding interactions in quantum many-body systems remains one of the most profound and difficult challenges in condensed matter physics.

The dissertation describes TEM experiments on heterogeneous catalysts.

The main topic of this PhD thesis is the Arakelov ray class group of a number field, an algebraic object that contains both the ideal class group structure and the unit group structure.

Promotor: J.G.E.M. Fraaije, Co-Promotor: A. Kros

Promotor: M.T.M. Koper, Co-Promotor: L.B.F. Juurlink

Promotores: R. Cramer, A.K. Lenstra, Co-Promotor: B.M.M. de Weger

Promotor: Prof.dr. P. Stevenhagen, Jan-Hendrik Evertse, Co-promotor: Pascal Autissier

Van der Woude en Rodrigues hebben een artikel geschreven in het Nederlands Juristenblad over proactieve politiecontrole naar etnische afkomst en nationaliteit.

The research described in this thesis centered on retaining exo-β-glucosidases implicated in health and disease, in particular the human inherited lysosomal storage disorder, Gaucher disease (GD).

Promotor: A. Achúcarro, Co-Promotor: J.W. van Holten

Waarom zijn niet alle kinderen even gevoelig voor variaties in hun sociale omgeving?

My PhD research is devoted to studies of the conjectural cluster-algebraic symmetry in the theory of topological string, which is the simplest, however already non-trivial sector in the theory of string.