Studievoorlichting

Unconstrained day-to-day activities are difficult to quantify and how the corresponding movements shape the brain remain unclear. Read more

Studievoorlichting

Studievoorlichting

Studievoorlichting

Studievoorlichting

Discover the master program population Health Management at Leiden University and contribute to a more integrated health care system. Learn more!

During the summer, we organize a summer school for researchers who want to learn about communicating science to diverse audiences. The summer school is aimed at PhD students, postdocs and other early career researchers. The Summer School is open for all disciplines in science, including social sciences,…

Studievoorlichting

Studievoorlichting

Promotie

Promotie

Er is kritiek op het toezicht van Toetsingscommissie Inzet Bevoegdheden (TIB) op de Nederlandse inlichtingendiensten. 'Of het verzwaard toezicht de veiligheid schaadt, kan eigenlijk pas achteraf worden vastgesteld, als er iets is gebeurd, zoals een aanslag,' zegt Willemijn Aerdts in NRC, zij is docent…

In surface science there is great effort to move from studying simple, flat model surfaces in vacuum to investigating more complex model catalysts in gas environments (in situ). This thesis gives three examples of such studies using microscopy and spectroscopy.

Promotores: H.W. Lenstra, K. Belabas (University of Bordeaux)

Indicators to measure progress in de-linking economic growth and environmental pressure.

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.

Even though more than 4000 extra-solar planets are known today, only a small fraction of these has been captured in an image. To better understand the planet formation mechanisms in solar-like environments we started the Young Suns Exoplanet Survey (YSES).

Promotor: Prof.dr. M. Schilthuizen

Despite the fact that gold nanoparticles (GNPs) are one of the most studied nanoparticles, there is still a necessity for new approaches allowing for effective protective coating to enable wider use of GNPs in biomedical applications.

At the moment, over 350.000 chemicals are registered worldwide for production and use. Their application, however, may harm human health and the environment.

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…

This thesis focuses on protoplanetary disks: flattened structures of gas and dust around young stars in which planets are expected to form and grow.

It is a common technique in global optimization with expensive black-box functions to learn a surrogate-model of the response function from past evaluations and use it to decide on the location of future evaluations.

Science is typically a patchwork of research contributions without much coordination. Especially in clinical trials, the follow-up studies that we do fail to be the most promising.

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.

This thesis aims to enhance our understanding of galaxies by testing theoretical models of galaxy formation against observations, particularly in the cases of extreme systems which have been found to have an excess of baryonic mass in their central regions, in the form of either supermassive black holes…

Biological cells, the basic building blocks of all life forms, are surrounded by a lipid membrane. More than half of the membrane is occupied by membrane proteins, which can regulate the cell functionality through specific arrangements.

Multiple stars, that is two or more stars composing a gravitationally bound system, are common in the universe.

Which traits and/or trade-offs determine benefits of being deciduous or evergreen?

The present thesis focuses on the pharmacological concept of drug-target interaction, which dates back to the beginning of modern pharmacology.

The focus of the described research in this thesis is on the oxidative stress response (Nrf2 pathway). The aim of the research presented in this thesis is to obtain more information concerning microRNAs which are involved in the Nrf2 pathway, to determine and evaluate the application of microRNAs for…

Leiden University and the Ministry of Infrastructure and Water Management are involved in a collaboration in the form of a research project titled 'Data-Driven Risk Assessment in Infrastructure Networks'

Promotor: F.J. van Lunteren, E. Jorin

There is an urgent need for more physiologically relevant cell culture methods to guide compound selection in pre-clinical stages of the drug development pipeline.

Streptomyces are filamentous bacteria that produce more than two-thirds of known antibiotics.

With increasing carbon dioxide levels in the atmosphere and their detrimental effect on the global climate, modern society needs to push for more renewable energy sources. Storing widely accessible and abundant solar energy in chemical bonds in the form of molecular fuel via artificial photosynthesis…

Promotors: Prof.dr. T.H.W. Bäck, Prof.dr. B. Sendhoff (Technische Universität Darmstadt)

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…

Natural resources often stretch across borders that separate modern nation states. This can create conflict and limit opportunities for regulated consumption of their goods and services, but also provide opportunities for joint multinational efforts that exceed single country capabilities.

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

Promotores: J. Kok, M. Chaudron (Chalmers University)

To gain more insight into the evolutionary development of orchid flowers and fruits, the orchid species Erycina pusilla was studied. The evolutionary origin of the median petaloid sepal, the callus on the labellum, and the stelidia was studied.

Promotor: G.A. van der Marel, Co-promotor: J.D.C. Codée

Rechtsgeleerdheid

Studying the impact of urbanisation on the respiratory health of past Dutch populations (1200-1850 CE).

Wiskunde en Natuurwetenschappen, Leids Instituut voor Chemisch Onderzoek (LIC)

Onderzoekers stellen in ‘Science’ dat het Proto-Indo-Europees ongeveer 8.120 jaar geleden ontstond in een gebied ten zuiden van de Kaukasus. Universitair docent Guus Kroonen vindt dat onwaarschijnlijk, zo stelt hij in NRC.

Promotie