This thesis investigates the interplay between high-redshift quasars and the intergalactic medium (IGM) during the Epoch of Reionization (EoR). It combines new observations, systematic measurements, and forward modeling to constrain the physical state of hydrogen in the early Universe.

Ben jij geinteresseerd om Bede Sheppard, Human Rights Watch’s Deputy Director of the Children’s Rights Department te ontmoeten? Bede zal donderdag 26 mei voor het #WatchOurSchools evenement in het Auditorium van Anna van Bueren zijn, en wij geven hierbij onze studenten de kans om hem van tevoren te…

The main aim of this project is to reveal and unravel the invisible histories of the UN, transcending the dominant Western perspective to recover the historical agency of Global South actors. The research will investigate how the UN has both facilitated and limited their role in shaping global order…

In this thesis, single-cell approaches were applied to characterize the impact of aging on the immunological B cell landscape in different models of atherosclerotic cardiovascular disease, with the goal to identify and study new B cell-associated biomarkers and therapeutic targets to halt atherosclerosis…

Grensverleggend geschiedenis leren.

In dit webdossier vind je een overzicht van de Erasmus+ projecten van de Universiteit Leiden.

Principles of Environmental Sciences provides a comprehensive picture of the principles, concepts and methods that are applicable to problems originating from the interaction between the living and non-living environment and mankind. Both the analysis of such problems and the way solutions to environmental…

Leiden is een echte studentenstad en heeft alles in huis om van jouw studententijd een onvergetelijke tijd te maken. Wil je weten hoe? Lees dan snel verder.

Leiden is een echte studentenstad en heeft alles in huis om van jouw studententijd een onvergetelijke tijd te maken.

Maak kennis met de wetenschap via deze activiteiten bij de universiteit of op school.

Leiden is een echte studentenstad en heeft alles in huis om van jouw studententijd een onvergetelijke tijd te maken.

The Study Information Committee works to create a positive and accurate picture of the bachelor and master programs offered by the Institute of Biology Leiden (IBL). The committee consists of IBL staff members and study ambassadors. We reach out to future and current students, high school biology teachers,…

Wil je aan de slag met Designing Your Life-onderwijs? Deze website heeft alles wat je nodig hebt!

De Leiden Science Run 2019 heeft een recordbedrag van 12.135 euro opgehaald voor Stichting voor vluchtelingstudenten UAF. Maar liefst 101 teams – eveneens een record – en de sponsoren CORPUS en Janssen Biologics brachten het bedrag bij elkaar.

Dr. Elif Naz Kayran heeft de ‘Best Dissertation Award’ gekregen van de Migration & Citizenship Section van de American Political Science Association (APSA) voor haar proefschrift ‘Political Responses and Electoral Behaviour at Times of Socioeconomic Risk Inequalities and Immigration’.

Via vluchtelingenorganisatie UAF biedt de Universiteit Leiden onderdak aan bedreigde wetenschappers. 2.500 alumni van de rechtenfaculteit hebben via het Leids Universiteits Fonds ruim 90.000 euro bij elkaar gebracht. De faculteit wil hiermee komend jaar gevluchte promovendi en onderzoekers in huis h…

Op 15 juli 2019 heeft Hans-Martien ten Napel de aftrap gegeven voor een nieuwe serie over het recht op vrijheid van godsdienst en levensovertuiging op het interdisciplinaire Religion and Global Society Blog van de London School of Economics.

Dr. Marcia Goddard ontdekte dat de hersenen van 2 groepen jongens met symptomen van autisme verschillen. Dit is nooit eerder aangetoond. ‘Blijkbaar is er binnen het autisme spectrum op belangrijke punten variatie in de hersenmechanismen die tot bepaald gedrag leiden.’ Dit pleit voor behandeling op maat…

Discover the unique Vital Interests course in the BSc Security Studies programme, featuring an inspiring session on climate diplomacy with Dutch UNFCCC negotiators.

The Leiden University Centre for Digital Humanities has awarded some small research grants to foster the developments of new digital research. These projects began in February 2018. On the 9th of October, these awardees will present their work, along with our PhD students.

EXIOBASE is a global, detailed Multi-regional Environmentally Extended Supply and Use / Input Output (MR EE SUT/IOT) database. It was developed by harmonizing and detailing SUT for a large number of countries, estimating emissions and resource extractions by industry, linking the country EE SUT via…

On April 14 we will celebrate the launch of our Faculty action plan ‘diversity and inclusivity’ with a symposium. We will present the action plan and our colleague Professor Tomas Brage will be keynote speaker. He is the Director of Education at the Physics Institute of Lund University in Sweden and…

Promotores: S.J. Edixhoven, P.Parent

Almost three years after receiving her honorary doctorate, Dr Graça Machel returned to Leiden University. Over the course of two days she spoke with students, researchers, and other interested persons, about human rights – particularly those of women and children – in a world in which these are continually…

In this study, we investigated the electrochemical behavior and surface evolution of Au(111) electrode under different conditions and electrochemical techniques, using a homemade electrochemical scanning tunneling microscope (EC-STM), revealing the intricate interplay between surface roughening, atom…

Hoe kunnen we op een interdisciplinaire wijze de classificatie van migranten en mensen met een beperking bestuderen en onderzoekers van deze velden samenbrengen om raakvlakken met elkaar te vinden?

The Synergy Award aims to connect PhD students with academic and non-academic professionals to explore the practical dimensions of their research. Four candidates will be invited to pitch their compelling impact ideas to a jury at Synergy 2021. Each pitch will also be broadcast to a live audience during…

Workshop, 21-22 June On 21-22 June, Dr. C.V. Weeda (Leiden University) and Marie-Louise Leonard (University Ca’ Foscari Venezia) organize a workshop on Worker's health and material environment in Port Cities. The workshop focuses on interdisciplinary discussion. ReMA-students are given the opportunity…

Due to the COVID19 crisis (especially the impossibility to meet in person), the course "Foundations of Research-2" could not take place as scheduled. However, a second opportunity to participate in this course in October will be offered. The course is aimed at PhD students who are about halfway…

Cell-based medicinal products (CBMPs), such as CAR T cells, are highly complex biopharmaceutical products offering various treatment options for serious illnesses such as cancer or autoimmune diseases.

Clinical development of drugs for central nervous system (CNS) disorders has been particularly challenging and still suffers from high attrition rates.

Atoms and molecules are the basic units of matter. If we keep dividing a bar of gold or a glass of water into smaller parts, at the end we are left with a single gold atom or a water molecule.

Promotores: Prof.dr. E.A.L. Biessen, Prof.dr. T.J.C. van Berkel

Op 16 december 2021 verdedigde Lisanne van Houten het proefschrift 'Flexing the Slot Regime'. Het promotieonderzoek is begeleid door prof.dr. P. Mendes de Leon en prof. L. Pierallini (Luiss University Of Rome).

Promotor: R.D. Gill, F. Taroni

Promotor: Prof.dr. G.P. van Wezel

Promotor: J. Schaye

To study how planetary systems come into existence we study much younger systems still in formation.

Promotor: K. Kuijken, Co-Promotor: H. Hoekstra

In this thesis, we study systems of electrons in which strong correlations give rise to emergent exotic physics.

Promotor: E.F. Smets, Co-promotor: J. Geml

Many galaxy clusters exhibit bright diffuse radio emission that traces the underlying structure of the intracluster medium (ICM).

Whilst government’s ability to design ‘context-specific’ regional innovation policy is generally assumed to depend on the region’s decision-making power, the aim of this study is to investigate how regional government matters. In order to open up the black box of policy design, the study develops a…

This thesis investigates how cell shape and collective behavior influence the dynamics and structure of biological tissues, which are crucial for understanding processes like embryonic development, tissue regeneration, and metastasis.

To limit the effects of climate change, global average temperature since pre-industrial measurements are to be kept well below 2 °C preferably even at 1.5 °C.

The following report discusses a survey on the topic of the Sustainable Development Goals that was distributed among researchers at Leiden University in the month of November 2021.

The key characteristic of active matter is the motion of an emergent collection (such as a flock of birds), which is driven by the consumption of energy by its active components (i.e. individual birds).

In most applications, electrocatalysts exhibit a large surface area to volume ratio, for example using nanoparticles.