Koos Biesmeijer, Professor of Natural Capital, and Claire van Megen, an Educational and Child Studies student, are in with a chance of winning Leiden’s Person of the Year title.

The Organising Committee and the Scientific Committee consist of the following people:

On 14 September 2021, Bram van der Sar defended his thesis 'Fiscale geheimhoudingsplicht: art. 67 AWR ontrafeld'. The doctoral research was supervised by Prof. J.P. Boer and Prof. A.O. Lubbers.

On 18 November 2021, Anneke Keulemans defended the thesis 'Het Unierechtelijke verdedigingsbeginsel'. The doctoral research was supervised by Prof. J.P. Boer and Prof. A.O. Lubbers.

On 14 November 2019 Niek Schipper defended his thesis 'De invloed van de woonplaats op de fiscale behandeling van grensoverschrijdende werknemers'. The doctoral research was supervised by Prof. S.C.W. Douma and Prof. J.P. Boer.

The Science Council is an advisory committee to the Board of the Institute and consists of the full professors of the Institute.

Freshwater and brackish water ecosystems are arguably the most vulnerable ecosystems on earth, due to concentrated human developments in and around them. The Pontocaspian (PC) region located at the border of Europe and Asia contains a variety of brackish water ecosystems and unique inhabitants, known…

On 4 March 2021, Michiel Spanjers defended his thesis 'Belastingbudget'. The doctoral research was supervised by Prof. J.P. Boer and Prof. H. Vording.

The 18th edition of SIP will be organised by Caroline Mueller at the University of Bielefeld, Germany. More information can be found on the SIP 2024 Homepage. The 17th Symposium on Insect-Plant relationships in Leiden has been held online from 25 to the 30 July 2021.

Plant diversity is essential for us and our planet as it sustains the stability of our ecosystems, provides vital materials and food to us and supports many ecosystem services.

Atherosclerosis is a progressive disease resulting in the formation of an arterial plaque. Despite lipid lowering, recurrent cardiovascular events remain a risk. While atherosclerosis is primarily lipid-driven, the immune system plays a critical role in the pathophysiology.

This thesis explores how bees and hoverflies are distributed across the Dutch landscape and how ecological and landscape factors shape their occurrence.

In this thesis, mathematical modeling and simulation was applied as a tool to inform quantitative decision making in oncology drug discovery and development.

An important hormone excreting gland in the human body is the pituitary

Als gevolg van de grote technologische vooruitgang in de gezondheidszorg worden in toenemende mate gegevens verzameld tijdens de uitvoering van klinische onderzoeken.

Growth hormone profiles are pulsatile and highly variable between individuals, limiting the implementation of mathemathical models to quantify an individual's secretion.

We depend on nature for so many things: from clean water, wood and food to carbon absorption, water purification and coastal protection, as well as for relaxation, inspiration and identity. Nevertheless, our modern world putting increasing pressure on these ecosystem services. Leiden researchers investigate…

Although rarely considered by the pharmaceutical industry or clinicians, 24-hour rhythms in physiology are a factor of potential influence on the pharmacokinetics and pharmacodynamics of drugs.

Biodiversity in the Netherlands is having a tough time. Professor of Natural Capital Koos Biesmeijer combines research with practical advice: from the greening of industrial parks to solutions inspired by hi-tech nature. Inaugural lecture 9 March.

Research in this group, headed by Gerard van Westen, focusses on computational methods integrated in different parts of the drug discovery process. More specifically, topics include innovative treatments for cancer, selectivity modeling, translational research, allosteric modulation, drug resistance…

How do tax treaties have to be explained and implemented, and what role does the supranational regulatory process play in this? Which objectives are meant to be used in establishing tax regulations and to what extent are such legislative practices undertaken in a goal-oriented manner?.

A rejuvenated Naturalis opens its doors to the public on Saturday 31 August. Many researchers from Leiden University also work at the Naturalis research centre. Their workplace has also undergone a major facelift, and museum visitors can now watch their every move.

Nicolaas Bloembergen, who won the Nobel Prize in Physics in 1981, passed away on 5 September in Tucson, Arizona. Bloembergen obtained his PhD on nuclear spin resonance in 1948 at Leiden University. Some articles about his life.

Leiden has the most highly regarded China Studies programme in Europe. But how did this knowledge find its way specifically to Leiden? For his PhD research Koos Kuiper delved into the unique history of the start of this unique programme.

Biodiversity in the Netherlands is having a tough time. Professor of Natural Capital Koos Biesmeijer combines research with practical advice: from the greening of industrial parks to solutions inspired by hi-tech nature. Inaugural lecture 9 March.

An overview of awards and prizes granted to our staff and students in 2017, as well as special appointments and royal distinctions.

State Secretary Sander Dekker of Education, Culture and Science received the national research agenda Nature4Life on 31 January. This research agenda, in which Leiden University is involved, focuses on research on biodiversity, ecology and evolution.

Leiden has been selected as one of ten cities in the European BiodiverCities project. The aim of the project is to increase the quality of life in these cities, for instance by developing a green infrastructure and enhancing biodiversity. The Municipality of Leiden will work together with Naturalis…

In 2022, many of our staff and students won fantastic prizes and were awarded important research grants.

An overview of awards and prizes granted to our staff and students in 2021, as well as special appointments at Leiden University and other institutions.

Samen met andere studenten bracht Fien Lurvink hulpgoederen naar Oekraïne en nam vluchtelingen mee terug.

LDE-FISIP UI Joint Minor students brought various issues in the Greater Jakarta Area to their final assignment in the form of policy briefs. The policy briefs are based on a month of research on the topics of waste management, the myth of the Jakarta dream of the younger generation, urban farming, energy…

The archive of a 17th-century postmaster has been discovered in the Museum for Communication in The Hague. Using new scanning techniques, the international research team Signed, Sealed & Undelivered, headed by literary scholar Nadine Akkerman from Leiden University and historian David van der Linden…

Sinds september 2010 werken Geerten Waling en Anne Heyer in het NWO project ‘The Promise of Organization’.

Information provided by the Tax and Customs Administration is something that concerns every citizen. So it is not surprising that the Tax hotline receives around 10 million calls each year. The Benefits Affair emphasised the citizen’s perspective in communications with the Tax and Customs Administration.…

With the Liveable Communities – Liveable Planet project, Marja Spierenburg, Professor of Anthropology of Sustainability and Livelihood, is showing that scientists are driven by ambition, hope and faith. She is linking Vrouw Vennepolder, a polder in Zuid-Holland, to the UN climate goals.