De Grachtwacht doet onderzoek naar stadsnatuur en de impact van plastic op de natuur. Met onze clean-ups verzamelen we niet alleen afval, maar ook data. Zo proberen we de bron van het afval te achterhalen en de kraan aan wal dicht te draaien. Zo komt er structureel minder plastic in de gracht!

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

Promotor: Prof.dr. J.N. Kok

Promotores: Prof.dr. F. van Lunteren, Prof.dr. F.S. Gaastra

Promotor: Prof.dr. J.W.M. Frenken

This thesis pioneers diatom molecular identification and quantification through genome-scale methods, with four key aims: (i) reviewing DNA/RNA sequencing methods in aquatic biomonitoring to highlight their strengths and limitations;

My PhD project studies how the temporally sequential Hox gene expression is regulated during head-tail patterning of the frog embryo.

n this PhD thesis, the recombination of different atomic lattices in stacked 2D materials such as twisted bilayer graphene is studied. Using the different possibilities of Low-Energy Electron Microscopy (LEEM), the domain forming between the two atomic layers with small differences is studied.

Humans can see the world through the eyes of other humans and imagine what they know, want, and intend. This competence is known as Theory of Mind.

In this thesis we study the landscape of gravitational models which modify GR by introducing an additional scalar degree of freedom (d.o.f.) to source Cosmic Acceleration.

Voormalige cliënten en projecten

In this thesis, classes of strongly interacting quantum field theories, have been studied.

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.

The endophytic microbiota is a community of various microorganisms that reside in plant tissue. These microbes are known to promote plant health and resilience, and their members do not simply exist side by side.

Kantorowicz onderzoekt hoe genderstereotypen de perceptie van leiderschapscompetentie beïnvloeden bij verschillende soorten crises.

Dit onderzoek presenteert een vijfstappenplan voor de ontwikkeling van een effectieve gedragsgerichte cyberveiligheidsstrategie.

De auteurs presenteren een benadering voor het achterhalen van de voorkeuren van de bevolking voor gebruik in de optionele wegingstap in de Levenscyclusanalyse (LCA).

In dit artikel onderzoeken Wout Broekema, Wouter Jong en Sara Perlstein het ontwerp en de beoordeling van crisisonderzoeken vanuit een leerperspectief.

This study seeks to analyse how job stress could be the result of performing administrative tasks

Vaak wordt gezegd dat een crisis iemands ware aard naar boven brengt. Het coronavirus stelt het multilaterale systeem op de proef. Politicoloog Gisela Hirschmann (Universiteit Leiden) maakt zich zorgen over de toekomst van internationale samenwerking.

In the current global context, there is a pressing need to address sustainable energy supplies to safeguard our Planet and its ecosystems. The choices made by human society have a significant impact on genetic evolution and climate.

Promotor: Prof.dr. E.F. Smets, Co-Promotor: L.W. Chatrou

Promotores: Prof.dr. H.P. Spaink & Prof.dr. P.C.W. Hogendoorn Co-promotor: Dr. M.J.M. Schaaf

Pharmaceutical companies, governments and the general public have become increasingly aware that animal models used in drug testing lack vital aspects to serve as an accurate representation of human biology. As models of the human body should become more physiologically relevant, animal models no longer…

Taking as a point of departure the Italian American community in Boston and its process of collective remembrance surrounding Saint Anthony’s Feast, we addressing the limits and potential of montage.

Atherosclerosis is the most important underlying process that drives cardiovascular disease, and is characterized by an accumulation of cholesterol which triggers an inflammatory response in the vessel wall.

Pancreatic ductal adenocarcinoma (PDAC) is among the cancers with the highest mortality rate, despite a relatively low incidence.

Supply risks are not new. But the aggravation of power conflicts on the international stage coupled with global shifts towards energy transition and digitalization has triggered the next supply risk research era.

Om conflicten in de maatschappij te beheersen en partijen aan elkaar tegemoet te laten komen is diepgaande kennis van menselijk gedrag nodig. Leidse psychologen, antropologen en politicologen dragen bij aan deze kennis. Lees meer over hun werk in het dossier ‘Botsende belangen overbruggen’.

'Drie studenten zagen tot hun verbijstering een week na Leidens Ontzet duizenden wegwerpbekers in het water liggen. Die hebben ze één voor één op de foto gezet en nu plaatsen ze elke dag zo’n foto op Instagram onder de naam CanalCups – net zolang tot de gemeente besluit dat herbruikbare bekers voortaan…

In this thesis, we used genetically engineered mouse models and a variety of cell-culture based assays to identify genes and pathways that are involved in the development and treatment of invasive lobular carcinoma (ILC).

Hieronder vind je een overzicht van de publicaties van LAPP.

Promotie

Early time-resolved experiments by Frauenfelder on the ensemble of the kinetic rebinding of CO to myoglobin molecules resulted in a stretched exponential relaxa-tion due to a very large spread of the reaction rates of individual molecules.

Barrier function is the natural role of the skin. The lipid matrix present in the outermost layer of the skin, the stratum corneum is important for this function.

This thesis describes a study from both a theoreticaL and an experimental point of view.

Understanding how galaxies form, interact, and evolve comes largely from comparing theory predictions with observational data. Numerical simulations of galaxies provide the most accurate approach to testing the theory, as they follow the non-linear evolution of gas and dark matter in great detail and…

Promotor: Prof.dr. M.K. Richardson

Arithmetic geometry concerns the number-theoretic properties of geometric objects defined by polynomials. Mathematicians are interested in the rational solutions to these geometric objects.

Neurodegenerative diseases pose a large medical and societal challenge. The etiology of these diseases is still poorly understood, which makes drug discovery for these diseases difficult.

Promotor: Prof.dr. B.R. Katzy

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

Promotor: Jaap Brouwer, Co-promotor: Remus Th. Dame

Marine sponges are important members of reef ecosystems, as they play ecological roles that are essential for the health of the reef.

Promotor: J. A. Bouwstra

Studievoorlichting

Van de verspreiding van zwerfafval tot welke talen er in Leiden en Den Haag gesproken worden: meer dan 50 interessante vragen zijn het afgelopen jaar ingestuurd voor het Citizen Science Project van de Universiteit Leiden. Niet één maar twee Citizen Science-onderzoeksprojecten zijn dit jaar van start…

Plastics are an intrinsic part of our society. Annually, 400Mt of plastics are produced of which roughly 40% is discarded within a year.

Food security is challenged by a growing global population and by climate change. Drought and soil salinity are considered the most important ones that inhibit crop yield and distribution. Worryingly, climate change is predicted to increase not only their frequency and severity, but also their co-occurrence,…