Dark matter represents around eighty per cent of the total mass in the Universe. Yet, we still don't really know what it's made of. Astronomer Pavel Mancera Piña is looking for answers. With a Veni grant from NWO and the most advanced telescopes, such as the James Webb Space Telescope, he will investigate…

A Dutch-Italian-German team of astronomers has observed a huge glow of radio emission around a cluster of thousands of galaxies. They combined data from thousands of LOFAR antennas that were focused for 18 nights on an area the size of four full moons. This is the first time astronomers have been able…

What are the conditions under which coercive diplomacy can compel a State to abandon its controversial nuclear (weapons) program? Based on the experience of the US coercive diplomacy against the nuclear programs of three countries, namely Iran, Libya and South Africa, Jean Yves Ndzana’s PhD research…

Schools of secondary education are assigned to (further) develop a curriculum vision regarding three functions of education (Sectorakkoord VO, 2014; 2018).: qualification, socialization, and subjectification (Biesta, 2015). This research project is aimed at developing instruments that help schools identify,…

A new microtonal approach of the bass clarinet, to further develope the instrument’s capability to produce not only exact quartertones, but also smaller units.

In this research note, Van der Does & Kantorowicz aruge that citizens that tend to experience political exclusion are often more supportive of direct and participatory forms of decision-making.

On 30 June 2016, Eesa Fredericks is expected to defend his Ph.D.-thesis ‘Contractual Capacity in Private International Law’ in Leiden. Supervisors are prof. Sierd J. Schaafsma (Leiden) and prof. Jan Neels (Johannesburg).

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

This thesis presents pioneering work on the panchromatic emission of some of the most luminous galaxies in the early Universe: star forming galaxies and active galactic nuclei.

Develop EPR instrumentation and methodology to investigate intrinsically disordered proteins (IDPs).

Kohei Suzuki is Assistant Professor at Institute of Public Administration. This study carries several important implications for understanding the policy impacts of a graying population and for studies of the welfare state, in general.

The topic of this study is the portfolio that is being used in a teacher education institute as an instrument for stimulating reflection on their development as teachers by student teachers.

How to reconstruct the middle parts (videlicet haute-contres, tailles and quintes) from French orchestral pieces, which survived only in their reduced forms (featuring primarely dessus and continuo), according to historical examples?

Up to and including 2024 the Netherlands Organisation for Scientific Research (NWO) will be working with the ‘PhDs in the Humanities’ funding instrument.

Frans Preumayr's nineteenth century virtuosic bassoon repertoire - An approach with a fine Grenser & Wiesner bassoon from Dresden: Issues of material and technique. What techniques and tools must be developed by period bassoonists in order to successfully approach the performance of Frans Preumayr's…

This study explores public leaders’ organizational learning orientation in the wake of a crisis. More precisely, we study the association between public leaders’ public service motivation and their learning orientation (instrumental versus political).

My research focuses on theories of the sublime by the Berlin Enlightenment philosophers Moses Mendelssohn (1729–86) and Johann Georg Sulzer (1720–79).

In 2015, Jorryt Matthee thought he discovered an extremely distant galaxy called CR7, which lacked elements heavier than helium. Three years later, he shows with measurements using the ALMA telescope that the galaxy does have carbon after all, and even in normal concentrations. The American Astronomical…

The Technology and Operation Management (TOM) group focuses on the operational challenges of adopting new cutting-edge technologies in areas such as artificial intelligence, precision medicine, and high-tech instrumentation.

The focus of this thesis is how stars like our Sun and planets like Jupiter, Saturn, and Earth are formed.

This thesis explores the theoretical and observational properties of distant massive galaxies that harbour active black holes in their centres and shine brightly at radio wavelengths.

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.

Complex Organic Molecules (COMs) have been detected in objects across different stages of stellar evolution.

My work is motivated by the necessity to extend Standard Model of Particle Physics in order to explain three observed phenomena that this great theory fails to accommodate

Low-mass main-sequence stars like our Sun are continuous sources of outflowing hot magnetised plasma. In the case of the Sun, this is known as the solar wind, whereas for other stars they are called stellar winds.

The Jeugdwerkgroep is a national astronomy association for young people who are interested in astronomy. The Leiden section organizes a monthly meeting in the Old Observatory Leiden.

In this thesis, I study the formation of large-scale structure and the physics of particle acceleration at large scales (~Mpc).

In this thesis new methodologies are developed for the detection and systematic study of radio sources in the early universe. This allows us to gain a deeper understanding of the formation and evolution of galaxies, the activity of supermassive black holes, and the final phase transition of our universe:…

Planets are formed in disks of gas and dust around young stars.

This thesis focus on the interaction between M dwarf stellar winds and Galactic cosmic rays and the possible effects on the habitability of exoplanets.

The Leidse Weer en Sterrenkunde Kring (LWSK) is a society of amateurs interested in astronomy, space travel and meteorology. The association organises a monthly lecture on a fascinating subject, given by an expert in the field.

A team of astronomers led by Dutch scientists have directly imaged a giant planet orbiting at a large distance around a sun-like star. Why this planet is so massive, and how it got to be there, is still a mystery. The researchers will publish their findings in the journal Astronomy & Astrophysics.

We are grief-stricken that our PhD student Maolin Zhang passed away during the early morning of January 17th 2019. He died during a terrible fire that took place at his house in Hillegom.

Radio telescope LOFAR maps the sky. It produces incredibly detailed images of the universe - and vast amounts of data. Huub Röttgering, director of the Leiden Observatory, talks about the challenges of working with those enormous datasets.

How should European financial law best integrate considering the interaction of the relevant legal systems?

Core Facilities are shared resources that provide access to instruments, technologies and services to researchers across the Institute of Biology. They are staffed by scientists with vast experience in their field, ensuring that all researchers can count not only on the latest available technology…

LIACS is partner in the project 'Stereotyping in Computer Science.' The project is a collaboration between multiple universities and the Dutch national expert organization on girls/women and science/technology (VHTO), which will investigate the stereotypes that children hold about computer scientist…

This study looks at the question of how and at what level students in primary teacher education can integrate theory and practice, and how the organisation of their learning environment, focusing especially on mathematics and pedagogy, can contribute to that.

In this thesis, we present new laboratory data of interstellar dust analogues.

The Dutch Black Holes Consortium receives 4.9 million euros from NWO for unravelling the mysteries of black holes and other mysteries of the universe. The Astronomy and Society group at Leiden Observatory is affiliated to use the leading research to introduce people of all ages and background, and children…

Whether finding signals of dark matter or discovering hydrogen in the vicinity of exoplanets, Leiden astronomers are world players in their field, and they are part of a long tradition: Leiden was the first university in the world to have its own observatory.

Some children and adolescents find it hard to attend school because of anxiety and/or depression, a problem which is often referred to as school refusal. The main research question is how we can best help these young people reduce their emotional distress and increase their school attendance in order…

Student agency is defined as the ability to increasingly take control of the learning process. It is associated with better grades, well-being, motivation and self-confidence. This research aims to provide teachers tools to stimulate student agency and to monitor its growth.

Physicists at the Leiden Institute of Physics (LION) conduct fundamental research into physical phenomena. They are inspired by curiosity and the desire to know more about the world in which we live. This research has always paved the way for new practical applications. These are something that the…

Physicists at the Leiden Institute of Physics (LION) conduct fundamental research into physical phenomena. They are inspired by curiosity and the desire to know more about the world in which we live. This research has always paved the way for new practical applications. These are something that the…

Research report January 2020. Supported by the lectorate ‘Music, Education and Society’, research group ‘Making in Music’, Royal Conservatoire The Hague

The Laboratory for Archaeozoological Studies is an advanced laboratory with advanced Leica stereomicroscopes and measuring instruments and an extensive reference collection which is used for research e.g. the identification of fossil remains. The collection is also used for teaching students the anatomy…

Data science offers exciting new instruments for governments to reach out to citizens, for example by using data-driven information channels, providing real-time simulations, or personalizing services based on citizen data. At the same time, the possibilities and use of data science methods can have…