Framing Poland through the lens of post-socialism, as is common in the social sciences, has become outdated. This label no longer captures the rapid changes that have taken place since the fall of the Iron Curtain. Ola Gracjasz's research shows that people are redefining their national identity, blending…

The world’s prosperity and well-being are seriously being threatened by the degradation of land and nature. Although there are opportunities to turn things around, fears of further deterioration in the coming decades must not be taken lightly. That is concluded at the Intergovernmental Science-Policy…

A neuro-ecological perspective on adolescent prosocial development

The United Nations has declared May 22 the International Day for Biological Diversity. A moment of global reflection on everything on Earth and its indispensability. Anthropologist Marja Spierenburg stresses the importance of the interaction between natural and social sciences in addressing sustainability…

Postdoctoral researcher Joost de Moor, who joined the interdisciplinary Global Transformations and Governance Challenges (GTGC) initiative at Leiden University since April 2021, will spend 50% of his time doing research for the project

The latest research from the Leiden outdoor laboratory ‘Living Lab’ shows that the insecticide thiacloprid strongly influences even the most common and robust dragonfly species in the Netherlands. The study was published in the Journal of Applied Ecology.

The sustainable production of hydrogen could potentially be made more efficient by adding a cleverly chosen salt to the process. Researchers at the Leiden Institute of Chemistry (LIC), in collaboration with physicists at the University of Twente, have discovered that the type of salt present in the…

A number of European countries have started evacuating their citizens and there is a threat of military intervention by neighbouring countries: the situation in Niger is deteriorating rapidly. A military coup has thrown the country into turmoil, partly aided by social media.

Sara Polak, American Studies expert and University Lecturer investigates how American presidents deal with the media and how new, social media influence our collective memory and the political game. ‘Social media algorithms influence us and our political choices in ways we do not foresee’, Polak say…

The research project Authoritarianism 2.0, funded by the European Research Council, invites eligible research institutions to submit applications. The successful subcontractor will conduct a nationally representative survey on Internet and social media use in the People’s Republic of China, relying…

Is aggression always bad? PhD research by psychologist Simone Dobbelaar shows that it is not. In fact, children who occasionally fiercely defend themselves and stand up for their peers often feel better mentally.

Globalization, migration, technological innovation and climate change pose challenges to citizens in European countries. These challenges test the limits of cross-national and cross-generational solidarities, touching upon the very foundations of governance and society. This research program aims at…

Following the Beirut explosion, BBC's podcast series The Foodchain explores the chemical that caused the blast: ammonium nitrate. A compound that is widely used to produce fertilizer. Professor of Environmental sustaibability Jan Willem Erisman tells about the effects of nitrogen on the environment.

From recurrent oil disasters to the outbreak of contagious diseases or major fires. Public organisations often learn too little from such crises, according to public administration specialist Wout Broekema. Staff frequently fail to communicate information adequately, which means that lessons are often…

How can social scientists contribute to a healthier society? That question was central to the Healthy Society Event on 9 June 2022, which successfully marked the start of a more conscious and intensive collaboration between the five Institutes of the Faculty of Social and Behavioural Sciences on education…

A growing amount of literature is being devoted to interrogating gendered dynamics in both violent extremism and terrorism, contributing to the integration of international and feminist security. This includes how such dynamics can shape differences in the motivations and participation of women and…

In this article, Martin Sievert and Jonas Bruder investigated whether and how administrative burdens influences citizens' perceptions of welfare policies and attitudes towards beneficiaries.

Migration and Mobility in the Early Roman Empire by Luuk de Ligt and Laurens E. Tacoma (Eds.)

This research project focuses on the development of a popular national agency in late nineteenth century Amsterdam and the question how ‘ordinary’ citizens imagined ‘the Netherlands’ through the experience and use of their urban surroundings.

A full overview of BPOC/SSNMR PhD theses.

Study information

Which molecules go into forming planets? PhD candidate Christian Eistrup and his colleagues have created new models to research this question. Their findings could change our idea of which molecules were forming Jupiter or even Earth.

Food production in the Netherlands is an economic success but has led to many environmental issues, including nitrogen pollution. Recently, the policy to allow economic growth while reducing nitrogen losses was disapproved by the highest court in the Netherlands, casting the country into a nitrogen…

During the 20th anniversary meeting of the Netherlands' Catalysis and Chemistry Conference, Marc Koper received the Netherlands Catalysis and Chemistry Award. ‘The ultimate candidate for the prize’, it says in one of the recommendation letters.

Yisheng Development is to design the entrance area to the Leiden Bio Science Park. Leiden University and the municipality of Leiden selected this Amstelveen-based project developer on the basis of their sustainable design for a vibrant campus. The design provides a combination of residential, working…

An endless stream of publications, data and software accessible to all? Professor of Science Studies Thed van Leeuwen calls for a more human-centred approach and an overhaul of the PhD system.

Prehistoric people may well have had an emotional bond with domesticated dogs much earlier than we thought. Leiden PhD candidate and vet Luc Janssens discovered that a dog found at the start of the last century in a grave dating back 14,000 years had been sick for a long time and had been cared for.…

In 2018 the Laboratory Efficiency Assessment Framework (LEAF) was launched in the UK. The aim of this programme was to help laboratories work more sustainably and efficiently. The initiative got a Dutch spin-off in 2021. Since then, a couple of the laboratories at the Leiden Faculty of Science have…

On Thursday 3 March , Prof. Margaret Moore will give the annual Centre for Political Philosophy lecture.

Nitrogen professor Jan Willem Erisman and Ton Brouwer have released a new report presenting scenarios to actually meet the agricultural nitrogen targets for 2030. Their message to politicians in The Hague: ‘Look at this approach — it is possible.’

The International Institute of Air and Space Law was delighted to host the 14th edition of the Leiden-Sarin International Air Law Moot Court Competition – for the first time – in Leiden! After three years of online mooting owing to the pandemic, this year’s competition was held again in person.

Marc Koper, Professor of Catalysis and Surface Chemistry, has been elected as President Elect of the International Society of Electrochemistry (ISE). He will be President Elect for two years starting January 2019, followed by two years as President and two years as Immediate Past President.

Kidney failure is a serious issue because kidneys cannot regenerate themselves after injury. A possible solution consists of artificially growing healthy kidney tissue. To achieve that, scientists first need to understand kidney development during the earliest stages, in the fetus. Leiden researchers…

A report by Casper Stubbé, a Master Industrial Ecology Student, about the debate between minister Timmermans of European affairs and students of Leiden University on climate politics on the upcoming climate conference in Copenhagen

The renovation of Cluster Zuid (Van Eyckhof-Van Wijkplaats) is the third project in the development of the Humanities Campus. The circular dismantling of Cluster Zuid has started.

We want FGGA to become a place where everyone feels welcome, at ease, and included. The outcomes of last year's personnel monitor and D&I survey show that we are not quite there yet.

The World of the Fullo takes a detailed look at the fullers, craftsmen who dealt with high-quality garments, of Roman Italy. Analyzing the social and economic worlds in which the fullers lived and worked, it tells the story of their economic circumstances, the way they organized their workshops, the…

Promotor: Prof.dr. J.N. Kok, Co-Promotor: W.A. Kosters

This project aims at describing the Khoisan languages !Ora (Korana/Griqua) and !Ui of South Africa.

This article explores how the meaning of the rule of law has evolved over the past century in UK and US parliamentary speeches, focusing on procedural (thin) and substantive (thick) conceptualisations.

The WARN project seeks to understand why certain warnings fail to reach and impact decision makers in time to avert crisis.

Anyone who follows the Faculty of Archaeology on social media must have noticed that something changed in September. Videos on research projects, interviews with staff and students, and embracing memes: the content has become more varied and engaging. We speak with students Grace Alonzo and Thomas Prins,…

Protests have been raging in Iran for two months since the death of 22-year-old Mahsa Amini. The role of social media in the protests against the Iranian regime should not be underestimated, says Senior Assistant Professor and Iranian Babak RezaeeDaryakenari.

The Young Academy Leiden strives to connect young academics with each other and strengthen their position within the University. It goes without saying that mental health is a topic that cannot be ignored here. That is why that was the theme of an again successful Young Faculty Lunch, this time at the…

Why are we unable to address health-care inequality? This was the topic of the inaugural speech of Professor Jet Bussemaker on Friday 15 February 2019. She analysed why current policy does not suffice when it comes to protecting vulnerable groups and fighting inequality. She proposed an agenda that…

Hydrogen peroxide (H2O2) is an important bulk chemical that is used in various industrial processes. More than 95% of the H2O2 used in industry is made via the anthraquinone process during which a large amount of energy is going to waste.