Promotor: A. Kros, Co-promotor: R.R.C.L. Olsthoorn

Promotor: E. F. van Dishoeck, Co-promotor: C. Walsh

The lipids in the uppermost layer of the skin, the stratum corneum (SC), play an important role in the skin barrier function. The three main SC lipid classes are ceramides (CER), cholesterol and free fatty acids.

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.

Streptomyces bacteria are a valuable source of natural products, many of which are used in the clinic or in biotechnology.

This report investigates the different approaches in the authorization process of GMOs for commercial use in the European Union and the United States of America. Three main aspects are considered and analyzed as potential causes of differences in the authorization process of GMOs for commercial use.…

Hoe kunnen we op een interdisciplinaire wijze de classificatie van migranten en mensen met een beperking bestuderen en onderzoekers van deze velden samenbrengen om raakvlakken met elkaar te vinden?

The deeper understanding of an organism's pathology is important for developing treatments. Over centuries of systematic research, clinical researchers have demonstrated that the more information they acquire about the cellular properties and their organisation in the tissue, the better they can understand…

LCA has become an important method to study environmental impacts of human activities. Still, there are several methodological issues in LCA that can adversely affect the results reliability.

This thesis consists of two main parts. The first part (Chapters 2 and 3) deals with a class of Markov process called Quasi-Skipfree (QSF) processes.

In human cells, a meter-long DNA is condensed inside a micrometer-sized cell nucleus. Simultaneously, the genetic code must remain accessible for its replication and transcription to functional proteins.

Machine Learning is becoming a more and more substantial technology for industry.

Promotor: J. van der Greef; Co-promotor: E. van Wijk, M. Wang

Promotores: A.P. IJzerman, H.W.T. van Vlijmen

Promotor: A.P. IJzerman

Fungal food spoilage often starts with a contamination with spores. Experimental data strongly indicate the existence of subpopulations of spores with different levels of resistance to preservation methods.

On the largest scale, the Universe resembles a cosmic spiderweb. Most galaxies coexist in small groups within the threads of this web. At the nodes of the threads are enormous groups of galaxies forming the largest structures in the universe still held together by gravity: clusters of galaxies.

The recently introduced nature-originated deep eutectic solvents, so-called natural deep eutectic solvents (NADES) are considered as truly green solvents, which composed of natural ingredients found abundantly in organisms.

Promotor: A.P. IJzerman

Cytotoxic T-cells (CTLs) are involved in the clearance of viruses and killing of tumor cells.

In this thesis I describe the results of Pulsed Interleaved Excitation and Fluorescence (Cross) Correlation Spectroscopy (PIE-F(C)CS) combined with single-pair Förster Resonance Energy Transfer (spFRET) used to study dynamics in single nucleosomes, which depends on subtle differences in the length of…

The outbreaks of AIDS and COVID-19 showed clearly how infectious viruses can influence people’s lives. Investigating the changes in the host metabolism may provide a paradigm shift to consider immune-metabolic interactions as therapeutic targets.

Promotor: Prof.dr. E.F. van Dishoeck, Co-Promotor: G.J. Herczeg

Met de opkomst van AI heeft de aandacht voor computerlinguïstiek en taalmodellen een enorme vlucht genomen. Maar machines kunnen het nog lang niet alleen af. In haar oratie bepleit hoogleraar Carole Tiberius het belang van onderzoek naar woordcombinaties. ‘We weten een heleboel, maar ook een heleboel…

Kevin speelt hedendaags repertoire dat zich onderscheidt doordat de lichamelijk handelingen die nodig zijn om deze muziek uit te voeren in de notatie van elkaar losgekoppeld zijn. Dit heet ook wel physical polyphonic notations, een unieke en relatief recente trend in de muziek waarbij naast de noten…

Promotor: Prof.dr. J. Schaye, Co-promotor: Marcello Cacciato

Bij Leiden University College The Hague staan Global Challenges centraal. Global Challenges zijn de grote, maatschappelijke uitdagingen van de 21ste eeuw waar we gezamenlijk een oplossing voor moeten vinden, zoals klimaatverandering, armoede, ongelijkheid, vrede en recht. Onze opleiding is opgesplitst…

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…

This thesis presents the first synthetic peptides ADP-ribosylated on serine, threonine, tyrosine, arginine and cysteine.

Promotor: G.J.B. van Ommen

In this thesis, I studied the origin and evolution of the non-thermal radiation in merging galaxy clusters.

Carbon dioxide capture and utilization technologies are necessary to create a truly circular economy. The electrochemical reduction of carbon dioxide to formate is an appealing carbon utilization method as it can be performed at room temperature and pressure, it only requires two electrons, and it has…

Promotor: J. Schaye

Bicarbonate buffer is largely found in nature due to its ability to regulate pH variations around neutral values. As the pH changes, so does the speciation of the buffer.

Indonesia is experiencing various environmental challenges related to its fast economic growth. Therefore, it is necessary to have measurable and applicable indicators to obtain accurate data and information regarding the costs of adverse environmental impacts arising from economic activities to support…

In this article, Samuels focuses on the active fostering of subjunctivity in processes of narrative worldmaking. Drawing extensively from the narrative of an HIV‐positive woman in Indonesia, she shows that by subjunctively leaving open multiple narrative trajectories and future possibilities, individuals…

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…

The research described in this thesis shows that hypercholesterolemia, a well-established risk factor for atherosclerosis, can impact skin lipid pool and barrier function already at young age. In the field of atherosclerosis, we showed that the small peptide Lyp-1 can be used as a targeting molecule…

The use of N fertilizers has increased worldwide in the past century. While this increased input of N has increased food productivity, it has also contributed to decreases in biodiversity, soil quality and environmental health, including increases in greenhouse gas emissions.

In this thesis, we aim to shed light on the diverse and often opposing roles of integrin α3β1 in cancer.

Promotor: J. Kuiper

Promotor: G.P. van Wezel

Chapter 1,contains the numerical verification of the Birch and Swinnerton-Dyer conjecture for hundreds of Jacobians of hyperelliptic curves of genus 2, 3, 4 and 5.

This thesis focuses on important life history traits and their trade-offs using two hexapod models. Particularly, the trade-off between immune defense and embryonic developmental speed is a central theme of this study.

Promotores: G. Persoon, R. Schefold

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?

In this thesis, I study the formation of large-scale structure and the physics of particle acceleration at large scales (~Mpc).

Every organisms in the tree of life faces the same challenge: the length of its DNA exceeds the volume of the cell it needs to fit in. Several strategies have evolved to solve this problem, one of them being the expression of proteins that bind and organize the DNA.

Supervisor: S.F. Portegies Zwart Co-Supervisor: A.G.A. Brown

In this thesis, we used genetically engineered mouse models to identify genes and pathways that are involved in ILC formation and in the development of resistance to FGFR-targeted therapy.