This research project explores themes related to the system of close protection and surveillance (Dutch: bewaken en beveiligen) in the Netherlands.

Samen met een groep enthousiaste wetenschappers bezocht ik deze maand verschillende universiteiten en andere kennisinstellingen tijdens een kennismissie in Indonesië.

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.

PhD candidates carry out a programme of independent research and additional (limited) course work, culminating in production of a PhD thesis in typically 4 years.

How can sustainable and circular decision-making be integrated into manufacturing operations? How can data from physical simulation models, digital twins and operations be used for sustainability assessment? How can manufacturing decisions affecting sustainability and circularity be integrated into…

Do you have any questions about the Industrial Ecology master’s programme? Please contact us! It is also possible to schedule a call with our study advisors or one of our students. Moreover, we have online Walk-In hours every third Friday of the month.

How do you achieve the structural change needed for a more inclusive university community? What challenges do female staff face in their careers and what does it take to be a woman in a leadership role? This is what over 40 female staff members from the university discussed on International Women’s…

Book project on how European policy is made and implemented, with a focus on how that process can be understood and lead to policy change.

Understanding the evolving landscape of extremism in the 21st century.

This week we welcomed a high-level delegation from the Dutch Research Council (NWO) and the National Natural Science Foundation of China (NSFC) to Leiden’s Institute of Environmental Sciences (CML).

The findings in this thesis improve the understanding of 1) the relationship between exposure characteristics and toxicity of ENPs, 2) the joint toxic action of ENP mixtures and the comparison to metal salt mixtures, 3) how NOM affects the individual and joint toxicity of ENPs, 4) the extent of trophic…

This thesis aims to address offshore wind energy (OWE)-related environmental impacts.

Professor Annetje Ottow will be appointed President of the Executive Board of Leiden University on 8 February 2021. She will be the first woman to be appointed to this post at Leiden University.

Global warming, deforestation, nature conservation. All major environmental challenges that call for major measures. To see what the effects of these measures are, observation data from the Earth is used. Researchers at LIACS receive €90,000 from the European Space Agency (ESA). With this they are investigating…

LUCIS works with Science ON AIR to put its researchers in the spotlight. For that purpose, several online videos of LUCIS members have been produced.

In November, Springer published a book on The Future of Drone Use, edited by dr. Bart Custers, associate professor at eLaw, the Center for Law and Digital Technologies of Leiden University.

Astronomer and Marxist Anton Pannekoek was a remarkable figure. This book aims to study the connections between his life as a socialist theorist and as a pioneering scientist through the prism of Pannekoek's biography.

Contact details and staff overview of the Leiden University Graduate School of Social and Behavioural Sciences.

Acquiring and maintaining public support is frequently cited as an important requirement for governments fighting non-state actors. But how exactly can public support influence the course of counterterrorism campaigns and thereby contribute to an escalation or de-escalation of violence?

On 23 January 2020, Paula Kemp defended her thesis 'Enforced performance of commercial sales contracts in the Netherlands, Singapore and China'. The doctoral research was supervised by Prof. H.B. Krans and Prof. M.H. Wissink (RU Groningen).

How can an effective ‘Safe and Circular by Design’ method be developed for practical application in a designer’s context, particularly for the initial stages of product design, incorporating Safe-by-design strategies, LCA/LCT, risk assessment and ethics?

Having served on the Executive Board for over nine years, the last five of which as Rector Magnificus, Hester Bijl will leave Leiden University at the start of next year. In a new step in her career, she will become Rector Magnificus on the Executive Board of Delft University of Technology (TU Delft)…

Are we on the right track towards a circular economy in 2050, with fully renewable energy technology and circular construction? The CML of Leiden University, together with the Netherlands Environmental Assessment Agency (PBL), TNO, Utrecht University and RIVM, is investigating what is needed to achieve…

PhD student and research journalist Sebastiaan Grosscurt won a Tegel in May. In the data category, Grosscurt and his colleagues won the prestigious Dutch journalism award. 'For me, ecological research and journalism are two ways of achieving the same thing.'

Soil ecologist Emilia Hannula has been awarded a Vidi grant by NWO to examine how soil could become a promising ally in combating climate change and improving biodiversity. ‘Soil creatures might be invisible’, she says, ‘but they play a huge role in creating a healthy environment.’

An overview of awards and prizes granted to our staff and students in 2018, as well as special appointments and royal distinctions.

Statistical distributions in LCA and converting between different representations of these distributions.

Fate and toxicity of copper nanoparticles was related to the water chemistry of the environment and pristine size.

The Advisory Board is an external Advisory Council, to advice the Board of Directors of CML about general strategies, research and education activities and evaluation procedures (Dutch: visitatie).

The Executive Board has adopted a new Code of Conduct on Integrity for staff. This new code encompasses all the existing regulations within Leiden University, including in the field of research, behaviour towards students and purchasing. 'This Code of Conduct is a very clear statement,' commented Rector…

Professor Sarah de Rijcke will become the new Rector Magnificus on the Executive Board of Leiden University on 15 January 2026. She will succeed Professor Hester Bijl, who will become Rector Magnificus at Delft University of Technology.

The Editors of PAIR are always interested in suggestions for themed editions. Anyone wishing to propose a theme and/or to assist as a ‘guest editor’ should contact one of the editors of PAIR.

Can excessive worrying be reduced via stimulation of the vagus nerve?

Lange tijd wisten we ons thuis in een wereld die we meenden te hebben. Het bestaan in deze vertrouwde wereld vormde onze existentie, die we op een eigenlijke wijze op ons namen. Thans is de wereld echter niet meer wat hij was, en zijn we ook zelf niet meer wie we waren. ‘De wereld is weg’, zo dichtte…

Philosophy of law is concerned with the the foundations of law.

Who were the main artists and producers who generated new forms of popular music? What was the music like that was produced by artists in particular urban settings? How were particular lifestyles articulated to identify new audiences and what does this reveal about the way popular music contributed…

A school lesson by a professor, for instance about the history of Africa, the climate or research and healthcare. A hundred Leiden professors told primary school children about their work in the Meet the Professor project.

In 2024, many of our students and staff won great prizes and secured important research grants.

Leiden University’s Rector Magnificus, Professor Hester Bijl, has been reappointed for a second term by the Board of Governors.

Research into our history of colonialism and slavery, heart-to-heart conversations at a Keti Koti table, exhibitions, lectures and podcasts that establish the link between present and past. Staff and students participated in the national Slavery Memorial Year in many different ways. What have we learned…

An overview of awards and prizes granted to our staff and students in 2020, as well as special appointments at Leiden University and other institutions.

This liber amicorum is a tribute to Prof. dr. ir. Hans H. de Iongh, associate professsor at the Institute of Environmental Sciences (CML) of Leiden University and guest professor at the University of Antwerp, on the occasion of his retirement on 27 October 2016.

RAWCLIC’s main goal is to develop knowledge on the future raw materials (RMs) demand, supply and associated environmental impacts induced by the energy and digital transitions in the EU, and to support fact-based industry- and policy- decision-making enabling these transitions.

For a first time the atlas maps the soil biodiversity of the entire planet, and provide s comprehensive analysis of human-induced threats to soil organisms and soil functioning, facilitating development of new policies to protect soil and soil organisms.

How can the integration of innovative technologies, circular material flows, and resource efficiency strategies accelerate the transition to a CO₂-neutral, circular, and high-tech steel sector by 2050, and how can Life Cycle Assessment (LCA), Material Flow Analysis (MFA), and Techno-Economic Analysis…

Leiden University and China import partner.

The Royal Holland Society of Sciences and Humanities (KHMW) has appointed five new members from Leiden. Annetje Ottow, Carsten de Dreu, Pancras Hoogendoorn, Ton Schumacher and Maartje van der Woude will be joining the oldest ‘learned society’ in the Netherlands.