Everyone knows smoking is unhealthy, but did you also know that smoking is not good for the environment? In parternship with UFB, we are organising a number of action days to pick up cigarette butts, hand out sustainable ashtrays and inform people about how they can smoke more sustainably!

From interpreting in Arabic and a visit to the dentist to a game of hockey. The temporary reception of 123 refugees in the University Sport Centre is running smoothly thanks to the enormous support from staff and volunteers. ‘It’s the children who most need attention.’

Dr Mike Field is the newly appointed Head of the Bioarchaeology Laboratories (Zoology, Human Osteology, and Botany). The new laboratories provide members of the Faculty with a first class infrastructure. “I see the laboratories as available for everyone to use.”

Promotor: Prof.dr. H. J. A. Röttgering, Co-Promotor: Dr. M. Haverkorn

In this thesis, classes of strongly interacting quantum field theories, have been studied.

Professor of Ecotoxicology Martina Vijver had planned an eight-week field work course for her students, but the corona virus threw a spanner in the works and Vijver had to come up with a new plan at short notice. ‘Without the help of my own network and that of my colleagues this would have been very…

Archaeologist Mike Field spent his summer holiday riding in the toughest horse race in the world, the Mongol Derby: 1,000km in ten days across the Mongolian steppe, following in the footsteps of the Genghis Khan’s messengers. Field was thrown from his horse twice but managed to make it to the finish…

The "Van Marum Colloquia" are a collaborative lecture series between the LION and LIC institutes, focusing on fundamental and applied surface science.

Matthew Fields, from Philadelphia, US, came to Leiden to study astronomy as part of the Euroscholars scheme. 'I came here to gain valuable research experience, and I haven't been disappointed!'

Prof. dr. Marcel Cobussen has published a free e-pub: The Field of Musical Improvisation.

Dusted off and fresh from the field, some insight perspectives on the 2012 field season of the Proyecto Arqueologico Centro de Nicaragua. It's safe to summarize the field campaign as having generated some insights, and possible answers, many more contacts, and the occasional frustration for added bo…

The Robben Island field school in January and February 2011 investigated and documented the tangible and intangible heritage of Robben Island, encompassing the remains associated with various political prisoners, the Muslim exiles, the lepers and lunatics, the WWII soldiers and Navy personnel, the prison…

Staff and students from the Faculty of Archaeology are just back from a newly started Field School in the inland of Portugal.

With the start of June, the annual Leiden Archaeology Field School has begun. Like last year, the Field School takes place in Oss. Every week, a group of 25 first year students gets to learn the ins and outs of a professional excavation.

Monday, 3 April, the yearly field school for all first-year students at the Faculty of Archaeology will start. The municipality of Oss is welcoming our 120 students and provides an excellent practical learning stage for the basic skills they will need to master for their professional careers.

The sustainable production of hydrogen could potentially be made more efficient by adding a cleverly chosen salt to the process. Researchers at the Leiden Institute of Chemistry (LIC), in collaboration with physicists at the University of Twente, have discovered that the type of salt present in the…

What should future education look like? And how can we make sure that young people develop to their full potential as bright and socially-minded adults? These and other questions were at the heart of two of the National Research Agenda's research routes. The first results of the routes were presented…

Steel production is likely to take up a large portion of our future carbon budget. Capturing CO₂ from coal-based production won’t solve the problem. Technologies that rely on renewables are more effective, but not enough to get to net zero.

His dissertation has been completed for more than a year, but due to corona the defence had been postponed. On Wednesday 30 September, Machiel van der Heijden will finally be able to defend his dissertation Transnational Networks and Domestic Agencies: Making Sense of Globalizing Administrative Patterns…

To construct catalysts that can produce fuels from CO2 innumerable times, we need to learn much more about how catalysis works. Irene Groot is conducting groundbreaking research into catalysis at the atomic level.

We would like to present to you a simple guidebook about living a sustainable life as a student in the cities of Leiden and The Hague. Whether you are a first-year student still trying to find your way around or already doing your masters – students wanting to explore more sustainable options and save…

About 15 km to the south of the ancient city of Petra, archaeologists from the University of Leiden have discovered an impressive network of ancient water conservation measures and irrigated field systems.

This dissertation is a collection of four research articles devoted to the study of Kummer theory for commutative algebraic groups.

Three decades ago, cyber-diplomacy did not exist. The interest in Information and Communication Technology (ICT) as a vector of change in international relations was limited to a few mostly technical organisations, and a restricted number of states.

Until last year the Archaeology Field Techniques programme for first-year students consisted of a number of two-hour lectures. Now they spend a whole day on the programme. Assistant professor Jasper de Bruin is enthusiastic about this new approach. ‘You can do a lot more with the students, and that…

Our Mission: To optimize human well-being within the constraints of planetary boundaries through innovative research, education, and partnerships that advance sustainable production and consumption. We strive to remain global leaders in developing and applying systems-based approaches, methodological…

Sustainably produced food reduces CO2 emissions during production and promotes the region’s economy. The University is working to increase the number of organic, fair trade, vegetarian and vegan products in its restaurants.

Arbitration law has grown into a ‘sexy’ area of practice about which students are keen to write a thesis and in which many lawyers specialise.

Promotores: P. Stevenhagen, A. Enge Co-Promotor: T.C. Streng

Lecture

This thesis is dedicated to the exploration of the primordial dark ages: unknown physics during the earliest stages of the Universe’s expansion that have not yet been directly probed by observations. Cosmic inflation is a burst of exponential expansion of space after the “Big Bang”.

The oldest forms of literature and law originate from Mesopotamia (3000 BC until AD 70), as do important discoveries in science and technology. All these developments were recorded in cuneiform texts on clay tablets. There is still a lot to learn from the study of cuneiform texts, says Professor of…

This thesis utilises the exceptional sensitivity and resolution of LOFAR to explore the low-frequency Universe, while simultaneously advancing the telescope's capabilities to enable new scientific discovery.

Can we identify different degrees of economic integration, both within and between regions, on the basis of archaeological proxies?

Assessing the effects of landscape and land-use changes on the visibility of archaeological landscapes in Central-Southern Italy.

Promotor: E.R. Eliel, Co-Promotor: M.J.A. de Dood

Promotor: Prof.dr. P. Stevenhagen, Co-promotor: Prof. dr. B. de Smit

In this thesis we study the landscape of gravitational models which modify GR by introducing an additional scalar degree of freedom (d.o.f.) to source Cosmic Acceleration.

On 4 June 2018, students of the Forensic Speech Science master’s course visited the Netherlands Forensic Institute (NFI) in The Hague. They were presented with practical examples, such as speech research with voice recordings of suspects. Forensic phonetics is a young, rapidly developing discipline…

How to take ownership of your career? To find out, students from ‘Design Your Career as a Climate Change Maker’ visited a farmer who has done just that. They learned from him that it’s never too late to start working on something you believe in.

What is Leiden University doing to make its buildings future-proof and independent of fossil energy?

The European Project SUNRISE, ‘Solar energy for a circular economy’, has been selected as one of the six Coordination and Support Actions (CSA) within the Horizon 2020 programme of the European Commission. Funded with 1 million euros, it will set the base for a large scale European research project.…

This project aims to integrate three of the largest survey databases in the Mediterranean to study the impact of the megalopolis Rome on its direct hinterland.

This thesis studies the geometry of representation varieties and character stacks. These are spaces parametrizing the representations of a finitely generated group, typically the fundamental group of a compact manifold, into an algebraic group G.

Are magnetic fields older than the first light? And how did they influence the development of our universe right after the Big Bang? Cosmologists from Leiden, Groningen, and Utrecht are now collaborating to investigate this.

Promotor: Peter Stevenhagen

The film MعLMIN made by Visual Ethnography alumna Loes Moree will be screened during the fourth Fieldrecordings event. Field Recordings is an annual event for visual anthropology, sound art and landscape film.

This thesis contributes to studying primordial cosmology theories and their detectability in future observations.