Streptomyces are bacteria abundant in soil that participate in diverse and complex interactions. These bacteria are the main producers of the antibiotics we currently use in the clinic.

Publishing about your research is a key aspect of your career as a researcher; the majority of research publications are written in English. When applying for research funding, too, it is very important to ensure that your application is written in clear, accessible English. Maria Sherwood-Smith, Academic…

The debate in Europe about digital sovereignty, technological sovereignty, data sovereignty and strategic autonomy has been building over recent years at both the EU level and the level of individual Member States. The different concepts – and their diverse interpretations – cover the sovereignty concerns…

Biological cells, the basic building blocks of all life forms, are surrounded by a lipid membrane. More than half of the membrane is occupied by membrane proteins, which can regulate the cell functionality through specific arrangements.

Promotor: H.J.A. Röttgering, Co-promotor: M. Haverkorn

The HARVEST project explores the dietary choices that our hominin ancestors and relatives made, by recovering information on what they consumed, and how factors like environmental variation, intrinsic biology, and development of food processing technologies could have influenced their decisions.

Despite the history of studies on methanol formation from CO2, the dominant elementary reaction steps that constitute the chemical mechanism for this catalyzed process are not determined.

In the Netherlands, levying tax on inheritances at death has been a fact of life for centuries. The presumed double taxation and its sad precursor are elements of the discussion about the levy of this inheritance tax, but so too are the possibilities to reduce the tax through ingenious legal constru…

Punching Back is a detailed ethnographic study that demonstrates that young Muslim women who kickbox develop agentive selves by challenging gender norms, challenging expectations, and living out their religious subjectivities.

In the Psychology Lab on Wheels, we conduct innovative research together with citizens. We drive our mobile lab to people all over the country helping to bridge the gap between science and society.

Natural history collections provide invaluable sources for researchers with different disciplinary backgrounds, aspiring to study the geographical distribution of flora and fauna across the globe as well as other evolutionary processes.

Supervisor: P.J.J. Hooykaas Co-Supervisor: R. Offringa

This dissertation focuses on irregular patterns in Vedic Grammar and Poetry.

Science and education can really flourish in an environment where everyone can be themselves and where there is room for different perspectives that bring people together from different ethnicities, genders, sexual orientations, health, religion, age and socio-economic background.

On this page you can find the current vacancies at the Van der Molen research group.

The Standard Model (SM) of particle physics fails to explain several observed phenomena and is incomplete. In order to resolve this problem, one may extend the SM by adding new particles.

In this thesis we investigate cosmology and the large scale structure of the Universe using cosmological simulations.

In this article, Jasmijn Boeken, explores in which ways the defining characteristics of the different zones can be found in the digital sphere.

My PhD project studies how the temporally sequential Hox gene expression is regulated during head-tail patterning of the frog embryo.

The literature indicates that teacher professional development and learning may be improved by using formative assessment procedures. This thesis focuses on a specific form of formative assessment, negotiated assessment, which is characterised by the exchange of views between assessor and assessee and…

The Special Issue of the European Journal of Applied Linguistics on ‘Language Ideologies: Old Questions, New Perspectives’ aims to offer diverse insights on language ideologies with a focus on methodological and theoretical questions.

Dissolving microneedles are a subgroup of microneedle types that completely dissolve within the skin. During this dissolving process the vaccine, stored in the needle matrix, is released into the skin.

On 10 March 2021, Pieter Huizing defended his thesis 'Parallel Enforcement of International Cartels and Its Impact on the Proportionality of Overall Punishment'. The doctoral thesis was supervised by Prof. T.R. Ottervanger.

Terrorism has been one of the most important threats to peace, security and stability in many parts of the world. But what does this mean? What is the nature of this threat? What can be done about it and how can we at least limit the impact of terrorism?

In this paper, the authors study how individual and country-level variables interact in affecting political gender attitudes in Europe.

Doctoral Thesis

We have studied shape with a particular focus on the zebrafish model system. The shape is an essential appearance of the phenotype of a biological specimen and it can be used to read out a current state or response or to study gene expression.

Promotor: W. Jiskoot, Co-promotor: A. Hawe

Promotores: H. Schiessel, G.T. Barkema

The active learning network joins together everyone interested in the subject to move the theme further within Leiden University. The SALTSWAT pilot program researches the ways forward for Leiden University.

The division of BioTherapeutics consists of the former divisions Biopharmaceutics and Drug Delivery Technology.

The Reading Club is a ProParte sub-club.

Traditionally, vaccines are administered intramuscularly using conventional hypodermic needles, which cause pain and distress. Microneedles are very short needles (smaller than 1 mm) that are practically invisible to the naked eye.

Over the last decades, income inequality has increased globally. How do social policies affect this increasing trend? How do international trade and technological progress affect inequality? What is the profile of income inequality in China?

Advanced biotechnology allows us to select or alter the genetic makeup of human embryos. What limits do we impose on biotechnological intervention in nature and the human body? And whose call is that?

On 29 June May 2022 Yujing Tan successfully defended a doctoral thesis and graduated.

French title: Entre la “détresse’’ et l’inter-connectivite : le case de Mbororo réfugies sur les frontières Cameroun-Centrafrique. This research project investigates the meaning of duress in the lives of nomadic refugees in Cameroon and investigates if and how the accessibility of new ICT’s allow them…

Tracing the evolution of the molecular gas content in galaxies is critical for a complete understanding of galaxy formation and evolution, as it provides the direct fuel for star formation. Studies of high-redshift (z>1) molecular gas reservoirs, most commonly traced by carbon monoxide (CO), have seen…

Heterogeneous catalysis is one of the fundamental processes of modern life, being common in industrial refinery and hydrogen vehicles, all the way to the living cell. The dissociation of H2 on Cu(111) is an important benchmark system for studying heterogeneous catalysis, with a large and varied amount…

In this workshop the focus is our language, our mother tongues, and translation. It consists of two parts. During the first hour, Daniela Vicherat Mattar and Ting Ting Hui will talk about translation. After this introductory part, Nanne Timmer will lead a poetry lab in which “misunderstanding” is the…

Our in-house human skin equivalents contain all stratum corneum (SC) barrier lipid classes, but have a reduced level of free fatty acids (FAs), of which a part is mono-unsaturated. These differences lead to an altered SC lipid organization and thereby a reduced barrier function compared to human skin.…

On 3 September 2019, Ilektra Antonaki defended her thesis 'Privatisations and golden shares: Bridging the gap between the State and the market in the area of free movement of capital in the EU'. The doctoral research was supervised by Prof. S.C.G. Van den Bogaert.

Stakeholder engagement practices are on the rise in regulatory governance. This raises an important question regarding implications for regulatory legitimacy. Engagement mechanisms are not by default legitimizing: Even when initiated to tap into an array of ‘benevolent’ desiderata, unless carefully…

The Leids Astronomisch Dispuut F. Kaiser is an association dedicated to the students who study astronomy in Leiden. In addition, they are also very involved in the public activities in the Old Observatory and help with the development and implementation of other projects in the building.

Dlshad Marf defended his thesis on 4 July 2016

Promotores: Wim Jiskoot; Ferry Ossendorp

Human Rights at Risk brings together social scientists, legal scholars, and humanities scholars to analyze the policy challenges of human rights protection in the twenty-first century.

Promotor: Prof.dr. T. Hankemeier, Co-promotor: T.H. Reijmers