Photographing fluorescent flowers, searching for frogs and shooting tropical cucumbers out of trees: this is only a small part of the course Tropical Biodiversity and Field Methods. For this class, master’s students biology traveled to Malaysian Borneo for two weeks to gain experience in fieldwork.…

Democracy may lead to more deforestation in the tropics. So write environmental scientist Joeri Morpurgo and his colleagues in the prominent scientific journal Biological conservation. They found that competitive elections are associated with more loss of tropical rainforest than elections without competition.…

I think we should go this way. This way! THIS! WAY!! Making yourself heard in a city can be difficult. That is not only the case for humans, but birds seem to be hindered by urban noise as well. Researcher Hans Slabbekoorn of Leiden University already showed that great tits in Leiden communicate differently…

Lecture, Tuesday Talks: Science Insights

The placebo effect was completely new to her when Lingling Weng began the PhD project in Leiden. She is now a postdoc in China. 'It would be great to investigate the underlying mechanisms of placebo and nocebo effects with my current knowledge of EEG and fMRI.' PhD defence on 17 October.

In ancient times, the desert in the Udhruh region in Jordan was transformed into a green oasis. An intricate network of underground water channels was part of an ancient system of water management, storing water and preventing loss through evaporation. Archaeologist Mark Driessen found a new way to…

Bart Krans, Professor of Private Law and Civil Procedure, spoke about ‘procedural agreements and ex officio application of EU law’ at an international seminar that was held at the University of Bergen in June. The results of the seminar will be published in 2023.

Leiden University Libraries (UBL) has acquired a rare manuscript map of Suriname. The map from 1830 is almost 2.5 meters long and is highly detailed. It was hand-drawn by Helmuth Hendrik Hiemcke (1808-1858), one of the official surveyors employed by the colonial administration, and shows Suriname in…

IAt the Criminal Justice Public Lecture on 20 April, Professor of Law and Society Maartje van der Woude spoke about her research into decisions and practice in relation to intra-Schengen border areas and the free movement of persons. The thinking behind the Schengen area is that where the external borders…

In the tropical rainforests of Southeast Asia the soursop family (Annonaceae) can be found. The genus Uvaria is a part of this family, but it has not yet been described entirely correctly. That is what Annas Rabbani will be studying during the next four years as a PhD student at the Hortus botanicus…

Roderick Bouman is collection manager of the Leiden Hortus botanicus. He keeps track of which plants there are in the garden, where they come from and makes sure visitors can find the right information about them. ‘We are like a regular museum,’ says Bouman. ‘Except that our objects are alive. That…

The jade vine (Strongylodon macrobotrys) is flowering at the Hortus botanicus in Leiden. The plant started producing multiple flower clusters three weeks ago and the first ones are now in full bloom.

Education

The fact that scientists are increasingly better able to access molecular cell and tissue data also brings with it a new challenge: how can scientists find the information they need for research among the vast amount of data available?

Scientific Director of the Leiden Academic Centre for Drug Research (LACDR) Hubertus Irth: ‘We test substances and look for new concepts for treating disease.’

Leiden criminologists have co-developed an artificial intelligence technology that tracks firearms incidents by scanning over 350 news sources.

On 15 February 2022, Irma Mosquera Valderrama, Professor of Tax Governance, holder of the EU Jean Monnet Chair on EU Tax Governance EUTAXGOV and Principal Investigator of the ERC funded project GLOBTAXGOV, participated in the High-Level Webinar Taxation and Business in Africa.

Amorphophallus decus-silvae, or the ‘penis plant’ as it is known, has just flowered at the Hortus botanicus. It flowered for two days, and then the pollen, which the male flowers produced was collected. As far as the plant experts at the Hortus can tell, this was just the third time that this species…

Eight university vegetable patches will soon join the display at the Hortus botanicus. The sun shone down on almost 40 enthusiastic students and staff as they started work on the new Community Garden there earlier this month.

On Sunday night 25 September, all the lights in Leiden will switch off and we will see the starry sky above us twinkling in all its glory. A unique opportunity for all residents of Leiden to experience the vastness of the cosmos and view the impressive artwork that hangs over our heads every night.…

If you study law, you won’t necessarily end up striding round a law firm in tailor-made suits. Alumnus Harrie Schoffelen certainly hasn’t: he made the conscious decision to follow another path in life. Together with his fiancée he runs a successful food truck on the tropical island of Bonaire. ‘Return…

Share experiences, gain inspiration or catch up with colleagues: you can do all of these at the Teaching Fair on 30 June. Co-organiser Anna Benjamins explains what the afternoon has in store.

Lecture

The question of land property titles is a common source of conflict between indigenous communities and federal authorities all over the Americas. A new Panamanian law have led indigenous communities to reach out to archaeologist Dr Natalia Donner. A grant from the Centre for Indigenous American Studies…

Eduard Fosch-Villaronga, Associate Professor at eLaw, contributed to 'Cyber–Physical–Human Systems', a book exploring the latest developments in interactions between cyber–physical systems and humans.

Benjamín Maldonado, Orestes Kyrgiakis, Roos Capel and Iskra Cvitković are the new student members of the Programme Committee (OLC). The board advises the Executive Board and the Faculty Board about educational matters, such as the determination of the Course and Examination Regulations and the evaluation…

Lecture

Henk Hoekstra and Alessandra Silvestri work on the astronomy and theoretical physics in the Euclid mission. These Dutch researchers are part of the mission.

The university elections are approaching. Are you going to represent student and staff interests this coming year? University Council chair Pauline Vincenten gives a peek behind the scenes at student and staff participation at Leiden University. ‘I get so much energy from collaborating with the students…

The new student members of the Programme Committee (OLC) are Pablo Pandocchi, Benjamin Maldonado, Emily Berube-Palsboll and Nico Lesenfants Ramos.

How to reduce aggression when two parties are at odds? PhD research by psychologist Lennart Reddmann's shows that it can help to offer them a peaceful alternative. However, the attacking party benefits the most from such a solution.

To measure the level of user satisfaction of the renovated Arsenaal building, a survey has been conducted amongst staff members. The results are presented below.

Polypeptide Therapeutic Solutions (PTS), a leader in the design, development and custom manufacturing of polyamino-acid based delivery systems for therapeutic drugs and the Leiden Academic Centre for Drug Research (LACDR) today announced a research collaboration to develop advanced drug delivery systems…

Without scientific knowledge, we won’t be able to tackle the grand challenges of the 21st century: climate change, energy transition, social inequality and coronavirus, for example. Professor by Special Appointment of the Social Value of Science Laurens Hessels is therefore calling for more transdisciplinary…

Chemist Tobias Bauer discovered ways to improve drugs by encapsulating them. Packages with iron nanoparticles, for example, can stimulate immune cells. Bauer will receive his PhD on 9 June.

For the first time, research has been conducted on how the health of detained persons prior to their detention differs from that of non-detainees and to what extent health problems change over the period: from before and after their detention.

How can Europe lead the way in vaccine development that is fast and for all? To answer this pressing question, Professor of Vaccinology Meta Roestenberg is holding a panel session on 14 July at the EuroScience Open Forum in Leiden.

Lecture, research presentation

Arts and culture

Lecture

Juan Masullo (Leiden University Institute of Political Science) receives a grant from the Elise Mathilde Fund/Leiden University Fund to conduct his research project ‘Forging an Anti-Mafia Culture: Observational and Experimental Evidence from Italy’. Masullo aims to find out what ordinary Italians think…

Om de weg te vinden letten sommige mensen op de omgeving, anderen onthouden waar ze links of rechts af moeten slaan. Mensen met Niet Aangeboren Hersenletsel (NAH) rapporteren navigatieproblemen. Om opnieuw te leren navigeren heeft neurowetenschapper Milan van der Kuil als revalidatietherapie een serious…

Lecture, Global Questions Seminar

Liselotta Jahnke, Jason Irwin, Rachel Cruickshank and Paula Kovač are the new student members of the Programme Committee (OLC). This committee advises the Executive Board and the Faculty Board of CADS about educational matters, such as determining the Course and Examination Regulations and evaluating…

Lecture

Jasper Knoester is the dean of the Faculty of Science. How is he doing? What kinds of things is he doing and what does his day look like? In each newsletter Jasper gives a peek into his life as dean.

In addition to cholesterol and high blood pressure as risk factors for atherosclerosis, we may need to address our own immune system to prevent a heart attack or stroke. Marie Depuydt revealed which cells exactly reside in the atherosclerotic plaque that narrows an artery. The presence of a diverse…