Including modelling as part of software development appears to have various benefits.

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.

This collection of seventeen essays takes its inspiration from the scholarly achievements of the Dutch historian Jan Lucassen. They reflect a central theme in his research: the history of labor.

This project aims to investigate the underlying (neurocognitive) linguistic processes of ellipsis resolution, particularly gapping.

Tin electrodeposition applications have rapidly evolved in the past 25 years.

Promotor: Prof.dr. R. Verpoorte, , Co-Promotor: Young Hae Choi

On the 16th of June Patrtick Harrison successfully defended a doctoral thesis and graduated.

The starting hypothesis of the project is that secrecy is not always inimical to democratic governance as conventional wisdom has it.

On the 24th of September, Louise S. Friis successfully defended a doctoral thesis. Leiden University Centre for Linguistics congratulates Louise on this achievement!

The urban graveyard presents several studies in which the results of older archaeological and osteoarchaeological research are compared to more recent excavation data from several Dutch, Belgian and Danish cities and towns.

The Security Studies bachelor's programme has received a bronze medal in EW Best Studies 2023. Every year, EW Best Studies selects the top programmes in Dutch higher education.

The goal of hit and lead optimization is to optimize suitable chemical starting points that can modulate a drug target. The methods and technologies used are similar to those in Hit Discovery, but once the compound has shown activity in an animal model, it moves from 'hit' to 'lead.'

Part of ‘Moralising Misfortune: A Comparative Anthropology of Commercial Insurance’, an ERC Consolidator project of Erik Bähre.

Chinese materia medica (CMM), comprising a diverse array of natural substances from plants, animals, and minerals, has been integral to Traditional Chinese Medicine (TCM) throughout history. This study investigates the dynamic evolution of CMM, noting shifts in species for improved therapeutic effects…

Primary Objective: The primary aim of the proposed RCT is to evaluate whether LF-TLP in blended form as an indicated prevention for anxiety complaints is more (cost-) effective than TAU according to the NHG guideline Anxiety. We hypothesize that in comparison to TAU, LF-TLP will result in a significantly…

Organised in four separate sessions throughout the day, and broadcast live online to guests and families who could not join, a total of 260 students received their Bachelor’s Diploma of International Studies on 28 August 2020 at the graduation ceremony in the historic Pieterskerk in Leiden.

We are developing the conceptual framework, which is new to this taxonomic group, and evaluate the current state of the art with respect to all critical parameters and transfer functions for a fully developed Population Consequences of Acoustic Disturbance (PCAD) model.

Global climate change is manifest by local-scale changes in precipitation and temperature patterns, including the frequency of extreme weather events (EWEs). EWEs are associated with a myriad range of adverse environmental and societal consequences, including negative impacts to agriculture and food…

Are you keen to immerse yourself in a new culture, broaden your horizons and make friends for life? If so, come to the Study Abroad Festival on Friday afternoon 14 October.

Organised in three separate sessions throughout the day, and broadcast live online to guests and families who could not join, over 200 students received their Bachelor’s Diploma of International Studies on 3 September 2021 at the graduation ceremony in the historic Pieterskerk in Leiden.

The Copenhagen interpretation of quantum mechanics states that a measurement collapses a wavefunction onto an eigenstate of the corresponding measurement operator.

The Master’s Open Day on 16 March was busy at all faculties in Leiden and The Hague. Thousands of visitors from the Netherlands and abroad came to Leiden University. ‘I want to find out more about the curriculum, and taste the atmosphere,’ said Sarah from Groningen.

Cryogenic electron microscopy (cryo-EM) is a powerful technique used to visualize the inside of cells and to study specific protein complexes. Within this thesis, I describe the use of various cryo-EM techniques to gain insight into the structural changes of the human pathogen, Vibrio cholerae, as it…

Leiden University 2016 thesis awards were awarded to Kaspar Pucek (History), Mariska Meijer (Bio Medical Sciences) and Paul Kozowyk (Archaeology).

Who benefits from CXCR/CXCL chemokine signaling during infection: host or pathogen?

This study has been carried out in the community of Sukamiskin, a kelurahan (‘village’) in Bandung, the Capital of West Java Province, located in the Sunda Region of Indonesia.

The Leiden University Centre for Innovation and the Leiden University Medical Center (LUMC) have won the Surfnet Innovation Challenge. The team won the prize with an experiment to link a virtual 3D anatomical model to a living human body.

Science, Leiden Institute of Physics (LION)

Four researchers from Leiden University will receive funding from arthritis foundation ReumaNederland over the next five years. This should facilitate long-term research into arthritis.

In Migration and Membership Regimes editors Ulbe Bosma, Gijs Kessler and Leo Lucassen bring together ten essays in an analytical framework which looks beyond the Transatlantic migration of the nineteenth and twentieth centuries in a deliberate attempt to incorporate the experience of earlier periods…

On October 9th, Peter Alexander Kerkhof succesfully defended his doctoral thesis and graduated. The Leiden University Centre for Linguistics congratulates Peter Alexander on this great result.

This volume edited by Jan Lucassen and Leo Lucassen aims to quantify and qualify cross-cultural global migrations and was published in the series 'Studies in Global Migration History'.

Would you like to do something for the victims of the war in Ukraine? Several actions have been set up to help the people in Ukraine. Read below what you can do.

Are you considering starting a master’s programme in Psychology at Leiden University and are you planning on pursuing a career in health care outside of the Netherlands? If so, then before your start your studies, make sure to check if your preferred country has special requirements to work as a psychologist,…

Mapping sanitary infrastructure in large urban societies in the Low Countries, 1200–1900

The aim of this project is to investigate the (cost)effectiveness of two innovative forms of trauma-focused therapy for patients with childhood abuse related PTSD. The ultimate goal is to improve quality of care and contribute to treatment innovation for this severely ill target population.

Alumna Fleur van Elk graduated cum laude for the research master's program Cognitive Neuroscience and started her PhD trajectory at the Erasmus University in Rotterdam. For Humans of Psychology, Fleur talks about studying, working and has advice for current psychology students.

From painful joints to intense fatigue: a third of rheumatism patients suffer serious effects from this chronic condition and rely long-term on medication. Leiden psychologists are to receive a subsidy from the Netherlands Arthritis Foundation to investigate whether placebo techniques can help patients…

When Henriëtte Hoffman was ten years old she was enthralled by The Last Emperor, a 1987 film about the twelfth and last emperor of the Manchu dynasty. It was an interest that eventually led to a five-month stay in Chengde in China for her Asian Studies research master’s programme. During her time in…

On December 6th, 2024, Rector Hester Bijl welcomed participants at the Leiden Jewish Studies Association’s First Annual Conference “Jews at Home: From Creation to Corona” and also presented two Leiden University students with the inaugural Leiden Jewish Studies Association “Best Thesis in Jewish Studies”…

PURPOSE: The aim of the study was to develop a cheap and fast method to produce hollow microneedles and an applicator for injecting vaccines into the skin at a pre-defined depth and test the applicability of the system for dermal polio vaccination.

Vocal learning is a trait shared by songbirds and humans. It is also a trait that is restricted by the brain rather than by a species' vocal apparatus. In this dissertation, functional MRI is employed in both species in order to explore potential common neural mechanisms underlying the ability to develop…

On 1 December 2020, Bernadette Muscat defended her thesis 'Insolvency Close-out Netting: A comparative study of English, French and US laws in a global perspective'. The doctoral research was supervised by Prof. M. Haentjens and Prof. B. Wessels.

On 26 June 2019, Lisa Louwerse defended her thesis 'The EU’s Conceptualisation of the Rule of Law in its External Relations: Case Studies on Development Cooperation and Enlargement'. The doctoral research was supervised by Prof. C.A.P. Hillion.

Increased molecular knowledge of the mechanisms of processes in the cell can lead to better medicines or new methods for combating diseases. Our MSc students in Life Science and Technology (LST) specifically learn to understand the molecular and structural chemical and biological aspects of disease-related…

Programme director of the bachelor's programme Security Studies Daan Weggemans kicked off the first webinar for prospective students this afternoon. In Kaltura Live he had an international audience of about 60 interested people.

Through metabolism, biochemical processes give rise to the complexity of life. Acquired and inborn errors in metabolism underlie many diseases occurring in man. The challenge for present day medical biochemistry is to find, and integrate, pieces of information at molecular, cell and organismal level…

Leiden LIS Budget Incidence Fiscal Redistribution Dataset on Relative Income Poverty Rates (2019), assembled by Koen Caminada and Jinxian Wang (Version 1, February 2019), presents the disentanglement of relative income poverty measurers and the anti-poverty effects of social transfers and income taxes…

Improving healthcare with our scientific discoveries: that is the goal of pharmaceutical research at Leiden University. And there’s a lot involved in that. Our research starts with the discovery of the effect achieved by a particular substance, and sometimes continues all the way through to the development…

A computer can look at, and learn from, many more images than a human specialist. AI systems are rapidly becoming indispensable for medical and biological applications. But they still have to learn how to explain their decisions.