How can we manipulate the biotic and abiotic environment to increase thrips resistance in tomato and chrysanthemum? More specifically we ask: How can plant secondary metabolites that are not soluble in water be delivered to plants in seed coating or root dipping treatment? Can bacteria be used to…

In science, it is of vital importance that multiple studies corroborate the same result. Researchers therefore need to know all the details of previous experiments in order to implement the procedures as exactly as possible. However, this is becoming a major problem in neuroscience, as animal studies…

Proceedings of the 25th International Congress of Roman Frontier Studies 4

Vulnerability and the associated levels of social resilience is what fascinates the researchers at the Institute of Cultural Anthropology and Development Sociology. What links a Japanese fisherman after the tsunami at Fukushima with a Ghanaian goldminer in an increasingly industrialised work environment?…

New insights into the Fayum Epipalaeolithic and Neolithic.

The project aims to conserve and consolidate the entrance gate to the Roman Desert Frontier Fort Qasr Bshir.

The Liveable Planet programme assists scientists and local communities in taking up a collective responsibility to develop in a sustainable way. This is done together with a lot of scientist from various disciplines.

In 2021, Leiden University will develop a new Sustainability Vision 2030. This vision for the future focuses on the primary tasks of the University: integration and visibility of sustainability in our education and research.

In our lives we often have little attention or appreciation for plants, let alone the ones we commonly call weeds. This inattention for plants has been described as plant blindness. The Stoepplantjes project aspires to decrease plant blindness by changing the image of weeds and using citizen science.…

Biosynthetic gene clusters (BGCs) for natural products are widespread in microbial genomes, and they are rapidly exchanged. This research assesses the factors that control the spread of BGCs and resistance genes in nature. This includes risk assessment for the spread of engineered DNA in nature.

We have recently discovered that there are biological proteins that phase separate out of solution much the way oil will de-mix from water (see movie). These form dense, liquid-like phases called protein condensates.

As a new vision on food production, the feasibility study on LED light to grow crops with the biological- and chemical evaluation of final products.

At Leiden Observatory, researchers investigate the origin of stars and their planetary systems. They detect and characterize planets around other stars, which are called exo-planets. They study how stars and planets form. And they follow molecules from interstellar clouds to nascent planet systems.…

Our research in the area of safety sciences aims to increase the mechanistic understanding of cellular toxicity of drugs and, in a broader sense, chemicals.

Leiden University has a long and outstanding tradition in the field of public international law.

Bronze Age settlement sites in the Dutch river area (c. 2000-800 BC)

Dishoeck

Maritime conflict management is the regulation of conflict in relation to the sea. It comprises conflict enforcement, conflict resolution and conflict avoidance. How did victims of maritime conflicts claim and obtain damages or demand compensation or reparation?

To deliver a Virtual Sensor tool optimised to exploit the synergy between Sentinels 2 and 3 to allow the consistent retrieval of land surface parameters (Albedo, LAI, and LST); To extend the existing capabilities of land EO data assimilation tools to add capacity to handle data in the thermal domain…

How does the photoregulation mechanism work in detail?

Leiden University purchases a wide range of goods and services every year. To a greater or lesser extent, they all have an environmental impact.

Are there significant differences among the environmental impacts resulting form the production of Asian aquaculture commodities and what are the main causes for these?

Over the past few months, students and staff from the Faculty of Humanities have produced many wonderful podcasts - perfect for listening during a long walk or while preparing the Christmas dinner.

The programme is structured along learning lines on environmental sustainability, governance and skills.

Aqueous solutions of proteins and carbohydrates separate into two parts with an extremely ‘soft’ boundary surface. The surface tension between these two parts can be manipulated, for example by adjusting the pH balance. This can be used to develop emulsions of a water-based solution in another aqueous…

Graphene floating on water does not repel water, as many researchers believe, but rather attracts it. This has been demonstrated by chemists Liubov Belyaeva and Pauline van Deursen and their supervisor Grégory F. Schneider. Publication in Advanced Materials.

Algae are not what immediately spring to mind when people think of threatened species. But even among algae there are species that have a difficult time, such as ‘Aegagropila linnaei’. In the magazine BioScience Christian Bödeker describes the worldwide decline of this species. He calls for the species…

Fancy burning off some calories after a day’s studying? Or perhaps you’d prefer to spend your evenings on the stage? Either way, the good news is that Leiden also has a lot to offer in the areas of sport and culture.

Leiden has so much to offer in the areas of sport and culture. Irrespective of whether you fancy burning off some calories after a day’s studying or perhaps spending your evenings rehearsing with an amateur drama group, you’re covered.

Providers of telephone, internet or data centers can be seen as companies of vital importance because of their national importance. This comes as no surprise. In the Netherlands, additional legislation was deemed necessary to protect national security and a legislative proposal was presented in April…

Researchers at Leiden University have mapped genes that cause breast cancer cells to migrate. The Leiden toxicologists Professor Bob van de Water, Dr Wies van Roosmalen, Dr Sylvia E. Le Dévédec and colleagues studied 1500 individual genes. They found eight, including the SRPK1 gene, that regulate the…

The vulnerability of the European electricity sector to changes in water resources is set to worsen by 2030 as a consequence of climate change. This conclusion is reached by researchers at Leiden University in an article published in Nature Energy this month.

Even a small quantum computer should be able to simulate exactly the properties and behaviour of new molecules. This would take chemistry to an entirely new level. Better solar panels, more powerful batteries, saving lots of energy in the chemical industry: the applications have the potential to transform…

In 2011, the University of Hussein Bin Talal in Maan and Leiden University initiated the joint Udhruh Archaeological Project, led by Professors Fawzi Abudanah and Mark Driessen.

The Trio, a people living in Suriname and Brazil, are ‘masters of creation’. Their immense knowledge of nature and materials enables them to live in the jungle. Archaeologist Jimmy Mans follows the Trio.

Physicist Scott Waitukaitis receives an NWO Veni grant to research the Leidenfrost effect for squishy materials. This effect is well-known for dancing water droplets in a frying pan.

Researchers from Biomon have used DNA-techniques to find 40 different species of fish in the river Dommel. This technique is capable of detecting more species than conventional methods of measuring.

The research group headed by Leiden chemist Marc Koper has discovered a catalyst that minimizes the production of chlorine gas during salt water electrolysis. The invention can enable the direct production of hydrogen from seawater. The article has been published in the Journal of the American Chemical…

Dutch mosquitos are more resilient to saltwater than previously thought. Environmental scientist Sam Boerlijst discovered this during his PhD research at the Hortus botanicus. This knowledge is crucial for understanding how mosquito-borne disease transmission might change in the future.

Coming Friday afternoons, primary school classes will visit the Living Lab! In cooperation with Technolab Leiden, several school visits will be organised. Last Friday, group 7

Specially for an experiment conducted by Leiden University, public administration experts and water authority officials came together in a laboratory.

Historian Dario Fazzi is the new professor by special appointment at the Roosevelt Institute for American Studies (RIAS), a strategic partner of the Faculty of Humanities. He starts on 1 September and will combine his new position with his current teaching duties at the Institute for History.

Court cases that get out of hand are enacted again and again, according to PhD candidate Tessa de Zeeuw. De Zeeuw: ‘Even if the court comes to the correct judgement, from a legal point of view, the issues that appear in a case such as that of Lucia de Berk continue to

This year Leiden University exists for 444 years! This will be celebrated together with the residents of Leiden and The Hague during various activities. One of these is scientists and residents doing research on plastics and psychology together.

Martina Vijver has been nominated as Teacher of the Year of the Faculty of Science. She gets this nomination for the course Ecotoxicology she taught in 2022. The 52 students who took the course were hugely enthusiastic, as can be read in their positive reviews. What is so great about this course then?…

Environmental researcher Paul Behrens generated both international as national media attention with his recent publication in Nature Energy. The media included Science Daily, Quartz and the Dutch financial newspaper Financieel Dagblad. In his publication, Behrens warns for possible power disruptions…