Since the adoption of agriculture people have cultivated fields. The project concerns all kinds of aspects related to raising crops.

In this thesis, we develop a novel technique called Optical Near-field Electron Microscopy (ONEM), which aims to combine the advantages of both optical and electron microscopy: the high resolution of electron microscopy and the low sample damage of optical microscopy.

In July 2004, a cooperation started between the Faculty of Archaeology and the Museo del Hombre Dominicano and the (University College London, England, Dr. José Oliver), to explore the possibilities to jointly undertake archaeological investigations in the Dominican Republic.

Leiden University continued to reduce its carbon footprint in 2021 by being more careful with natural resources and making structural reductions to its energy consumption. This is what it says in the Sustainability Report 2021.

Leiden astronomers published two articles on more sustainable astronomy in a special section of the journal Nature Astronomy. Among other things, they calculate that their online conference EAS 2020 consumed three thousand times less carbon dioxide than the face-to-face edition a year earlier. They…

Promotor: Prof.dr. P. Stevenhagen & Prof.dr. K. Belabas (Univ. de Bordeaux)

Can bacteria be engineered to convert methanol into valuable chemicals with high efficiency?

The thesis describes terrestrial field trials aimed to detect side-effects of pesticides within the framework of pesticide registration procedures. Field trials were developed using vascular plants Brassica napus and Poa annua, caterpillars Pieris brassicae and effects on decomposition were studied…

Promotores: W.J.G.M. Peijnenburg, G.R. de Snoo, Co-promotor: M.G. Vijver

Promotor: S.J. Edixhoven

Make more fluid: In condensed matter systems, electrons can acquire unusual properties from their interaction with the atomic lattice.

This thesis describes the implementation and on-sky demonstration of high-resolution integral-field spectroscopy for extreme adaptive optics systems that are used to find and characterize exoplanets.

In this work we describe three methods to improve the performance of Quantum Field Theory calculations.

Four bachelor’s students in archaeology have embarked on a month-long field school in Aruba. They will work with Harold Kelly, a local archaeologist at the National archaeological museum of Aruba, and with the research team of Island(er)s at the Helm.

The insights leading to the present project firstly manifested themselves in 2008, when I worked with field recordings on the basis of relatively well-established notions in music composition studies, such as ‘musical material’ and écriture. With hindsight, I understand the outcomes of those first experiments…

The development of new environmentally sound technologies is seen as a key route towards achieving sustainability.

A management strategy has been developed for field margins to reduce pesticide drift to non-target areas and to promote biodiversity on arable land. To this end, 3 and 6 m wide strips along the edges of winter wheat, sugar beet and potato crops have been left unsprayed with herbicides and insecticides…

Low-carbon (LE) technologies have a significant potential to reduce the total carbon emissions in China.

How can complexity science advance intelligence transformation?

This thesis investigates the relations between metabolism and anatomy through the use of Magnetic Resonance Imaging (MRI).

Promotor: H.J.M. de Groot, Co-Promotor: A. Alia

The redox-conversion reaction of metal-disulfide and metal-thiolate complexes are important, as they may shed light on electron-transfer reactions that often occur in Nature.

On the largest scale, the Universe resembles a cosmic spiderweb. Most galaxies coexist in small groups within the threads of this web. At the nodes of the threads are enormous groups of galaxies forming the largest structures in the universe still held together by gravity: clusters of galaxies.

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.

Promotor: S.J. Edixhoven Co-promotor: L. van Geemen, P. Parent

How much energy and greenhouse gas emissions can Dutch homes save? Xining Yang uses Leiden as an example and shows with his research how enormous the impact can be. At least, if we work harder on becoming more sustainable. Based on the models he developed, Yang will receive his doctorate on 28 June.

Promotores: P. Stevenhagen, E. Fouvry (Univeriste Paris Saclay)

Why do black holes emit thermal radiation? And how does a closed quantum system thermalize?

Subproject of the NWO Smart Culture Grant research project 'The Critical Visitor'.

Human civilization consumes a huge amount of fossil fuels, which has resulted in an atmospheric CO2 level which has not been higher in over 800 millennia.

This thesis studied in depth the energy use and CO2 emissions of the industrial sector in China.

This thesis discusses the physical and chemical processes than influence the composition of forming planets.

How is Young Star Renske Donkers doing now? Early this year she was the second person ever to win the Young Star Award for the best bachelor student. After her bachelor Molecular Science & Technology, Renske is now busy with her master Chemical Process Engineering in Delft. ‘This award was a great boost…

This work represents the final results of several years of research within the Maya region. It deals with the relations between architecture and urbanism with landscape and astronomy.

For Leiden University’s operations, sustainability is an important topic, especially looking at the CO2-footprint, renewable energy and the greening of buildings.

Promotor: W. Jiskoot, Co-promotor: H.A. Every

This is a facility where research groups or small companies can apply for space if they need to culture human or animal cells.

Training students to become medical professionals is an important task of a university medical centre. But teaching does not always receive the space and recognition it deserves. This needs to change, says Professor Alexandra Langers. Medical education is a profession in its own right.

How do humans control their thoughts and actions, and what can high-field brain scanning reveal about the underlying processes?

Can Cyanobacteria be engineered to convert the greenhouse gas carbon dioxide into the valuable chemical isoprene?

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.

Several buildings need to be demolished to make way for phase 2.

Leiden University is working on a green, circular campus, with a significant reduction in energy consumption by 2050 as its goal, as elaborated in the Route Map Energy Transition Buildings, published in 2022.

In the Catalysis and Surface Chemistry group, we investigate how catalysis works on the molecular level. The group is divided in six subgroups, focusing on different aspects of heterogeneous catalysis, homogeneous catalysis and electrocatalysis.

Imagine we could convert the greenhouse gas CO2 into synthetic fuels using sustainable energy. This would enable us to reduce the amount of CO2 and at the same time store wind and solar energy in an innovative way. Chemist Akansha Goyal (Leiden University) is conducting fundamental research to make…

De discussie over de sluiting van illegale schietbanen van Defensie, als gevolg van de stikstofwetgeving is ingewikkeld en omvat diverse juridische aspecten. Armin Cuyvers, hoogleraar Europeesrecht, bespreekt de zaak in BNR-Nieuwsradio.

Electrolysis is a technique that can be used to convert CO2 into fuels and other useful products. To do this efficiently and on a large scale, however, we need to understand exactly how electrolysis works. Professor Marc Koper is an expert in this field.