Salicylic acid (SA) is a plant hormone, which is involved in the defense responses to pathogens and to abiotic stress, and in the regulation of plant growth and development.

Promotor: J.N. Kok, P.E. Slagboom Co-promotor: J.F.J. Laros

Radiography is an important technique to inspect objects, with applications in airports and hospitals. X-ray imaging is also essential in industry, for instance in food safety checks for the presence of foreign objects.

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.

Promotor: J.N. Kok, Co-promotor: C.M. Soares, A.J. Knobbe

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…

Three major cosmology-focused missions are planned for the next decade: the Euclid space telescope, the Vera C. Rubin Observatory in Chile, and the Nancy Grace Roman Space Telescope.

This thesis describes the functional analysis of the Arabidopsis AHL15 gene.

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

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

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…

Vast, often populated, areas in dryland ecosystems face the dangers of desertification.

Protein–protein complexes are formed via transient states called encounter complexes that greatly influence the formation of the stereospecific complex.

International trade has played a major role in defining the modern global economy. Trade, however, entangles the environmental pressures of economic sectors, giving the illusion of environmental improvements, while the opposite may be occurring.

Spectroscopic studies on fluorescent single molecules in organic condensed matter does not only provide information about the molecule itself, but also its near environment. By suppression of phonon-induced broadening of spectral lines through cooling to low temperatures, small changes in the spectral…

This work describes the use of click-to-release chemistry to get spatiotemporal control over immunocytokine activity. Until now, immunocytokines (cytokines coupled to a tumor-targeting-moiety) remained active throughout the body, being able to bind their respective receptors, causing mild to severe…

Voltammetry plays a crucial role in modern scientific research by offering valuable insights into the electrochemical properties of materials, with wide-ranging applications in fields such as materials science, energy storage, corrosion studies, and sensor development.

Despite the history of studies on methanol formation from CO2, the dominant elementary reaction steps that constitute the chemical mechanism for this catalyzed process are not determined.

A complex community of microbes develops in the infant gut shortly after birth. We call this community the infant gut microbiota. The microbiota influences the health of the infant, which makes the composition and function of the infant gut microbiota an important topic to study.

Het Instituut voor Strafrecht & Criminologie houdt zich bezig met onderzoek en onderwijs op respectievelijk het gebied van het straf(proces)recht en de criminologie.

We find ourselves in an era of transition, not just towards a more computing- and data-driven society but also away from unsustainable fossil fuels as an energy source.

Promotores: T.H. Oosterkamp, N. de Jonge

Aspergillus niger is an important industrial producer of organic acids and enzymes producing large amounts of spent fungal biomass.

Promotor: Prof.dr. P. Stevenhagen, Co-promotor: B. de Smit

All life on earth contains DNA, which is used to store biological information. Organisms compact their DNA in order for it to fit inside their cell(s).

Graphene nanoribbons (GNRs) are used as a current carrying substrate in investigation of current-induced forces in a low-temperature STM (chapter 2).

This interdisciplinary study focuses on (trans)national ethnic and popular networks, combining historical-ethnographic and computational methods to understand the ‘workings’ of networked conflict interfering in the increasingly violent conflict in the Sahel (Africa) and beyond. The project focuses on…

Subproject of the ERC project 'Challenging the Liberal World Order from Within: The Invisible History of the United Nations and the Global South'.

Triple-negative breast cancer (TNBC) is a subtype of breast cancer characterized by limited treatment options and unfavorable clinical outcomes. Therefore, the research described in this thesis focused on the exploration of novel targeted therapies for TNBC.

The application of nanomaterials in industrial processes and consumer products provides many societal benefits, but can also lead to the release of nanomaterials into the environment. The work in this dissertation aims to provide insights into the potential environmental impacts that may follow from…

Chinese materia medica (CMM), comprising a diverse array of natural substances from plants, animals, and minerals, has been integral to Traditional Chinese Medicine (TCM) throughout history. This study investigates the dynamic evolution of CMM, noting shifts in species for improved therapeutic effects…

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…

Molecular materials have been a subject of interest in fundamental research and applications for decades, and have been studied as bulk crystals, (thin) films and as individual molecules, due to the large variety in their properties. This dissertation explores pentacene crystals near the two-dimensional…

LLInC ondersteunt innovatief en hoogwaardig onderwijs, binnen de Universiteit Leiden en in samenwerking met onderwijs- en maatschappelijke organisaties.

Lezing, Studium Generale

One of the key discoveries in exoplanet research over the past decade is the abundance of small planets in our Milky Way. Despite their high numbers, our understanding of their atmospheres remains limited, and it is unknown if they possess atmospheres at all.

In this thesis, deep learning is studied from a statistical perspective. Convergence rates for the worst case risk bounds of neural network estimators are obtained in the classification, density estimation and linear regression model.

Bij eLaw verzorgen we een aantal vakken voor de master Jeugdrecht en voor de master International Children's Rights (Advanced LL.M.)

Alumni-activiteit, New York

The International Board on Books for Young People (IBBY) kent Toin Duijx het erelidmaatschap toe vanwege zijn werk als secretaris en penningmeester van de Nederlandse IBBY-sectie, zijn werk in en grote betrokkenheid bij de Internationale Jugendbibliotheek in München, zijn inzet als jurylid van de Hans…

Prof. em. Wim Blockmans (Leiden University) has given an interview to ‘De Nieuwe Wereld’ (in Dutch). He talks about his latest book 'Medezeggenschap. Politieke participatie in Europa vóór 1800'. Take also a look at the YouTube channel of this Dutch philosophy collective as other videos feature medievalists…

Hoe is het om elke dag met de top uit jouw werkveld te werken? International Studies-alumnus Niels Drost weet daar alles van. Hij werkt momenteel als junior onderzoeker aan het Clingendael Instituut.

In de Russische stad Novgorod zijn bij opgravingen strookjes berkenbast gevonden. Op de strookjes zijn korte boodschappen ingekrast. Jos Schaeken, hoogleraar Slavische en Baltische talen, vertelt in het NRC meer over deze bijzondere vondsten.

Onlangs werd bekend dat archeologen van de Universiteit Leiden bij opgravingen in Oegstgeest een zeer zeldzame zilveren schaal uit de eerste helft van de zevende eeuw hebben gevonden. Thijs Porck, docentpromovendus Oudengelse taal en cultuur, werpt een blik op deze vondst vanuit literair-historisch…

Charles University (Prague) is seeking highly qualified international post-doc researchers in the following domains: medieval literature, medieval Latin, and medieval philosophy. Deadline: 15 July 2021.

Carlotta Rigotti werd uitgenodigd door de Raad van Europa om een overzicht te geven van online en door technologie gefaciliteerd geweld in het Marokkaanse parlement, als onderdeel van het samenwerkingsprogramma ‘Support fort he National Mechanism for Prevention of Torture and the Development of the…

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