Farmers do not love them all. Microbes can cause tragic consequences for crops. Even the presence of just one pathogenic fungus or bacterium can drastically reduce yields. Still, there are exceptions. In that case, a pathogenic microbe is present in the soil, but does not cause any harm. Adam Ossowicki…

Prior to the 2020 presidential election, historians considered the disputed 1876 contest—which pitted Republican Rutherford B. Hayes against Democrat Samuel J. Tilden—the most controversial in American history.

Did early farmers deliberately use animal manure on their fields?

Political scientist Tom Louwerse (Leiden University), analysing several recent opinion polls, expects that after the March 2017 elections in the Netherlands, a relatively large number of mid-sized parties will gain representation in the Dutch parliament. If the predictions are anything close to the…

This research cluster is a part of the Institute of Political Science’s research programme ‘Institutions, Decisions and Collective Behaviour’.

The parliamentary elections in the Netherlands, scheduled for March 2017, are likely to result in a fragmented parliament and a complicated coalition formation process, according to Dutch political scientist Hans Vollaard (Leiden University).

Promotor: B. van de Water

Promotor: B. van de Water

China is a one-party regime, yet elections are held for the local congresses. PhD candidate Wang Zhongyuan investigated how the Communist Party uses this democratic instrument to strengthen the authoritarian regime. PhD defence 31 January.

In this thesis the combinatorial use of bioorthogonal labelling and Electron Microscopy (EM)-based imaging techniques is explored to enable observations of specific molecular targets in their ultrastructural context within the cell.

In this article, Honorata Mazepus, assistant professor at the Institute of Security and Global Affairs, and Dimiter Toshkov, associate professor at the Institute of Public Administration, discuss whether the winner–loser gap extends beyond the political domain to subjective health and well-being as…

This team will focus on the elective credits in the fifth semester.

Advanced microscopy to understand life and fight disease: that’s the goal of the new NL-BioImaging network that will develop and integrate state-of-the-art microscopy technologies and services. Researchers from all Dutch universities, including Leiden University and the Leiden University Medical Centre,…

Today is the general election in the Netherlands – although the polling stations have actually been open for two days already because of the coronavirus restrictions. Leiden researchers and students are involved in all manner of ways, and are analysing the campaigns and possible results.

From surface science towards industrial practice using high-pressure scanning tunneling microscopy.

This book is an examination of why and how the elective principle, already established in Transylvanian and Polish political culture in the late medieval period, was transformed in the early elections of the 1570s.

X-Ray Diffraction (XRD), Nuclear Magnetic Resonance (NMR) and Cryo-electron microscopy (Cryo-EM) are the three main methods for solving structures of macromolecules.

The university may seem a bit subdued in the run-up to the Dutch elections on 29 October. The media has barely mentioned education as an election issue, but behind the scenes the university is lobbying hard, says acting President of the Executive Board, Timo Kos. ‘We’re fighting for the future of our…

Promotor: Prof.dr. J.P. Abrahams, Prof.dr. M. van Heel

Microscopic insight on lipid-based nanomedicine in vivo remains limited to the perception of the knowledge that could be obtained: if we interpret only what we see, then we only believe to know. Although believing to know encapsulates an undefined amount of uncertainty in the exploration of lipid-based…

We investigate bacteria and fungi to understand their malicious or beneficial impact on food crops and their pathogenic or antibiotic role in human health.

America will not be choosing the next President until 8 November. Nonetheless, election fever is already running high. University lecturer and political commentator Kees Boonman explains the phenomenon and shows what Dutch politicians can learn from it.

This article examines how immigration from Central and Eastern Europe influences political support for Eurosceptic parties.

This thesis investigates reactive interfaces in surface science across three domains: heterogeneous catalysis, environmental nanoplastics, and two-dimensional materials.

A jar, filled with water, that functions as an aquarium for fishes while plants or flowers grow on top. Urban Crops, a young start-up company, creates small eco-systems in jars by using aquaponic systems. The 'Ecojar' is a modern decoration in living-rooms and office spaces, but also purifies the air…

Article by Dennis Broeders in the Journal of Cyber Policy on the (im)possibilities of addressing election interference and the public core of the internet in the UN GGE and OEWG.

In this thesis, the focus lies on studying glucocorticoid receptor dynamics in living cells with the aim of understanding how this transcription factor finds its DNA target sites to regulate transcription.

Bacteria are everywhere. They are the most abundant organisms on earth and impact all aspects of our lives. They determine our health and shape our environment. Ariane Briegel, professor of Ultrastructural Biology, freezes bacteria super fast to gain a true-to-nature image of the internal and external…

This article examines the effects of introducing proportional representation (PR) in Polish local elections on women’s political representation.

On February 2nd the book Beelden zonder weerga appears, written by professor in science history Dirk van Delft and biochemist Ton van Helvoort. They describe the rich history of electron microscopy, which comes to a conclusion in the final chapter with the current state-of-the-art ESCHER microscope…

This dissertation revolves around the design and implementation of novel instrumentation and related measurement techniques, at the single molecule level, for use in biophysical research. Chapter 1 presents an introduction to the field of fluorescence-based single molecule measurements. In particular,…

In collaboration with the University of Amsterdam, the Europa Institute hosted a roundtable on Thursday 30 May on the theme of the upcoming European elections. The consequences of these elections extend far beyond the European Parliament's political composition: they affect how the European Union is…

Dr. Kirsten Leiss and Prof. Peter Klinkhamer received 900.000 euro’s from “Stichting Toegepaste Wetenschappen (STW)” and the company “Rijk Zwaan” to develop plants that are resistant to thrips, a major agricultural pest all over the world.

The Kroese-Duijsters Symposia aim to provide researchers from different fields and different career stages to meet in an informal setting, to stimulate discussions and to start new collaborations. The Kroese-Duijsters Symposia started in 2022 and we are pleased to invite you to the 4th Kroese-Duijsters…

Materials with strongly correlated electrons show some of the most mysterious and exotic phases of quantum matter, such as unconventional superconductivity, quantum criticality and strange metal phase.

Bacteria have the ability to alter their morphology in order to adapt to changing environments.

This thesis comprises the development of reproducible synthesis procedures for two-dimensional materials (composed of boron, nitrogen and carbon) on different metallic surfaces.

This doctoral thesis is an effort to understand how lipid phase-separation induced by diacylglycerol analogues in lipid-based nanoparticles affects their in vivo behavior, leading to specific nanoparticle-protein communications and selective cell targeting.

The High Troughput Microscopy Dutch Flagship Node that includes the Leiden Cell Observatory Screening platform is now officially ratified as a Euro-BioImaging (EuBI) Node Candidate

This thesis is concerned with the constitution of chiral responsive matrix assemblies that may undergo light-driven conformational changes and self-select vibrations to develop vibronic states for driving semi-classical coherent transfer with nearly 100% yield in a lossless NCAP process.

In this thesis, bioorthogonal chemistry is combined with correlative light-electron microscopy to selectively label and study pathogenic intracellular bacteria within the host immune cell.

In condensed matter systems electron-electron interactions, negligible in everyday metals, can dramatically alter the electronic behavior of the system. Examples of such altered behavior include high-temperature superconductivity and modulation of the electron density.

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.

The aim of this research is to understand the linking of crises for the combination of climate change and the COVID-19 pandemic.

This thesis focuses on using liposomes in two different treatment strategies; vaccination (or immunotherapy) and delivery of a small molecule, and in two different disease models; cancer and atherosclerosis.

Why are the local parties so popular? Researchers at Leiden University gave their reaction the day after the elections of 21 March.