Computer scientists from Leiden University and the University of Münster describe a new theoretical starting point for approaching difficult optimization problems. They can take into account several criteria simultaneously, instead of just one at a time.

A large delegation composed of 11 delegates from institutes from the Faculty of Science has made an extensive visit to China and enhanced Leiden’s influence in the Chinese academia, industry and local government.

Fearing a trade-off with economic growth, countries feel discouraged to cut their CO2 emissions. But do the two really not go together? Environmental scientist Ranran Wang and her colleagues investigated the relationship between economic growth and CO2 emissions in 73 countries from 1970 to 2016. Wang:…

Some examples of AI-research done at Leiden.

The CADS Asia Research Cluster extends the legacy of the Institute’s Asia focus into the future, as an important hub in international networks on the study of Asia and through active engagement with colleagues in Asia. Within the Institute the Asia Research Cluster offers a platform for anthropologists…

Which teacher did an outstanding job in not only transferring knowledge in novel ways but also in getting students enthusiastic and connecting a course to current research themes? Meet the nominees for the Teacher of the Year Award 2024!

1) The in-use construction material stocks of the BRI projects and their temporal and spatial distribution. 2) Environmental impacts (e.g. carbon emission and biodiversity loss) of constructing BRI projects. 3) Socio-cultural impacts of the BRI projects.

Leiden University Centre for Linguistics (LUCL) has a longstanding tradition in research in the world’s languages and features unique linguistic expertise. At LUCL, we help develop interdisciplinary approaches to linguistic phenomena by facilitating the interaction between data-driven and theory-driven…

Research in the Natural Computing and Optimization cluster covers theoretical foundations, the development of new algorithms, and interdisciplinary applications of natural computing methods.

As a graduate of Dutch Studies, you will be fluent in Dutch and have a deep understanding of Dutch culture and society. This provides strong preparation for working in international organisations with Dutch connections, in government bodies or NGOs, in Dutch educational programmes in your home country,…

Leiden University’s European and International Business Law programme has been successful for more than 20 years. Read more information about the benefits.

Lecture, CHiLL series

From treatment plants to hot showers, emissions from water use in the U.S. are equal to 50 million cars driving around for a year. In The Washington Post, staff writer Tik Root consults different experts to learn about ways to reduce our water consumption. He also speaks with Leiden environmental scientist…

Proud. We did it. All the Ginis. Open Access. Income inequality and Fiscal Redistribution in 47 countries 1967-2014.

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.

Astronomer Donggang Wang, physicist Anne Meeussen and chemists Nick Gerrits and Elliot Mock: all four are receiving a Rubicon grant from the Dutch Research Council (NWO). This grant for young talent will enable them to spend two years doing research at a foreign university.

What is dark matter? How do supermassive black holes form? ‘Primordial’ black holes might hold the answer to these long-standing questions. Leiden and Chinese cosmologists have identified a new way in which these hypothetical objects could be produced just after the Big Bang. Publication in Physical…

From the largest numbers to the smallest molecules and from the oldest galaxies up to the latest algorithms, explore our standout discoveries and most inspiring collaborations from the past year!

The Business, Technology & Public Policy research group of the Department of Business Sciences at Leiden University focuses on investigating the dynamic interaction between 'new' technologies and various stakeholders, including consumers, employees, and businesses. Our research delves into perceptions,…

A memorial of Maolin’s life is planned on Wednesday the 30th of January at the Academy Building in the center of Leiden.

Leiden University strengthens the collaboration with the Chinese Xi’an Jiaotong University. The Chinese delegation visited the Faculty of Science to talk about collaborations in the field of life science and data science.

On Friday 11 November, GTGC, L-PEG, and LUCIR organized a workshop on Emerging powers and Development Finance across the world.

The coal-power energy sector is using enormous amounts of fresh water which is projected to negatively affect lives and the ecological balance of the surrounding region. This is the conclusion of the new report The Unquenchable Thirst of Energy Production, published by Greenpeace Bulgaria and Leiden…

Computers are capable of making incredibly accurate predictions on the basis of machine learning. In other words, these computers can learn without intervention once they have been pre-programmed by humans. At LIACS, we explore and push the borders of what a revolutionary new generation of algorithms…

Human AI is where artificial intelligence and machine learning meet philosophy, cognitive science, and the creative arts. Examples of research questions in this domain are: 'Can an algorithm be creative by human standards?', 'Can creative processes, such as composing music or writing poetry, be modelled?',…

Many of the journal's issues contain short contributions from practitioners of diplomacy. These practitioners' essays offer unique insights into the world of diplomacy and they serve as a source of inspiration for researchers.

What is the Fine Mechanical Department?

In August 2019, Debating Public Diplomacy: Now and Next, edited by Jan Melissen and Jian Wang, is out as a paperback issue. There is a special discount available for a limited time only.

The human brain stores not only individual words, but also all kinds of abstract information about these words. Research by Leiden linguists has shown that speakers have ready access to this information.

The world is becoming clogged with plastic, with tiny plastic particles found everywhere, from the oceans’ depths to the mountain tops, soil, plants, animals and even inside us. The question is: what harm, if any, are they causing? In a new article on The Conversation, environmental scientists Meiru…

On 17 November 2014, the Leiden Law School and the University of Beihang, China signed a Memorandum of Understanding.

Two new Assistant Professors are joining Science Based Business (SBB) this Autumn. ‘Xishu Li and Jian Wang are the first two Assistant Professors we recruited. This is an exciting, crucial next step for SBB,’ said Professor Simcha Jong who joined Leiden University as the Director and first Professor…

Leiden physicists have developed a way to address how accurately a superconducting single photon detector (SSPD) can be characterized by detector tomography. SSPDs are not fully understood, and tomography is a key element to determine how these devices detect light. A better understanding of these detectors…

Donald Trump was sworn into his second period as President of the United States on 20 January 2025. Since then, the Trump administration has raised alarms for people around the world who are concerned over what this will mean for the current geopolitical landscape. Join a panel of experts to discuss…

Jingxian Wang, PhD at ICLON, examined technology integration in primary and secondary education. Defence on 6 July.

Living in China and want to meet other Leiden Alumni? Read about the new Leiden Alumni Chapter in China and join them on LinkedIn and the upcoming events.

Our GTGC community joined climate finance experts to discuss how climate finance landscape has changed since 2015. During this panel, researchers shared the findings of one of the Global Transformations and Governance Challenges (GTGC) Programme's seed grand projects.

How many species of butterfly are living in my garden? Do I recognise the Leiden dialect? What is the air quality like in my area? Do you have a question about something that affects you, your neighbours or the whole city of Leiden or The Hague? Residents and scientists have until 15 March 2019 to send…

The unemployment replacement rate data set, assembled by Olaf Van Vliet & Koen Caminada (version 1, January 2012), provides data on unemployment benefit schemes in 34 welfare states from the 1970s until 2009. The current data set includes all 27 member states of the European Union and 7 non-EU OECD…

Engagement between Asia and Europe is increasing. If these continents want to build a lasting relationship, they need to understand each other better in the economic, socio-cultural, historical and legal arena. Researchers from Leiden have already contributed to the body of knowledge on past and present…

The transition to new and renewable energy sources should be completed by 2050. Researchers in various disciplines at Leiden University are conducting unique research that will help us make this transition and reduce CO2 emissions.