Promotores: Prof.dr. A.G.G.M. Tielens, Prof.dr. L. Kaper (UvA)

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.

We explored how to morphologically classify well-resolved jetted radio-loud active galactic nuclei (RLAGN) in the LOw Frequency Array (LOFAR) Two-metre Sky Survey (LoTSS) using machine learning.

Promotor: H.J.A. Rottgering, Co-Promotor: R.J. van Weeren

Enforcement of group cooperation fails because of discriminatory punishment, according to research by Welmer Molenmaker and colleagues. When group members have different backgrounds, punishment turns into a double-edged sword: no longer used just to prevent group exploitation, but also to break the…

This study attempts to understand how indigenous community institutions pose an important role in sustainable community-based development, including the integration between local culture and development.

Hot astrophysical plasma is ubiquitous in the Universe, from comets in our Solar system to the largest scale structures -- the cosmic web filaments. These hot plasmas, with the temperature of a few millions of degrees, are often observed in the X-ray wavelength range.

The origin and evolution of galaxies are closely tied to the cyclic feedback processes between stars and the interstellar medium (ISM).

Stellar feedback is a crucial ingredient in the evolution of galaxies.

OB associations are loose groups of young, massive stars. They constitute the last stage of the massive starformation process, and the context in which new stars are formed.

Op 1 april 2020 verdedigde Ivan Romashchenko zijn proefschrift 'Related Party Transactions and Corporate Groups: When Eastern Europe Meets the West'. Het promotieonderzoek is begeleid door promotoren prof.mr. S.M. Bartman en prof. A. Radwan (Kaunas, Litouwen).

In this thesis, the research focuses on the properties of dark matter and dark matter haloes and how they connect with the galaxies we can observe in the Universe.

Waarom radicaliseert de ene persoon tot betrokkenheid bij terroristisch geweld binnen een groepscontext, terwijl de ander zich alleen aan deze vorm van geweld waagt? In dit artikel vergelijken Bart Schuurman en Sarah Carthy op basis van een nieuw ontwikkelde dataset terroristen in groepsverband en terroristen…

An Active Galactic Nucleus (AGN) is a highly luminous region at the center of a galaxy, powered by the accretion into a supermassive black hole and emitting energy from radio waves to gamma rays, often outshining the host galaxy.

This thesis investigates how galaxies form and what diversifies the evolutionary histories of galaxies.

Streptomyces are filamentous bacteria that produce more than two-thirds of known antibiotics.

Hoe leidt zelfredzaamheid tot een afname in samenwerking voor publieke goederen?

Waarom kozen sommige Euraziërs ervoor in de voormalige kolonie te blijven, terwijl anderen naar de metropool of een ander land vertrokken?

Samenwerkend leren in het hoger onderwijs: ontwerp, implementatie en evaluatie van groepsleeropdrachten

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.

Promotor: W. Jaffe, Co-promotor: K. Meisenheimer

Promotor: Jelle S. Kaastra Co-promotor: Jelle de Plaa

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…

Promotor: Prof.dr. A.G.G.M. Tielens

Promotor: Koen Kuijken Co-promotor: Henk Hoekstra

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

One of the key quests in astronomy is to study the growth and evolution of galaxies across cosmic time. Radio observations provide a powerful means of studying the formation of stars and subsequent buildup of distant galaxies, in a way that is unbiased by the presence of dust.

In de afgelopen jaren is het verzamelen en verwerken van tal van gegevens aanzienlijk toegenomen. Met behulp van nieuwe technologieën zoals data mining wordt getracht kennis te halen uit verzamelde gegevens. Vaak wordt gezocht naar profielen die eigenschappen of risico's van bepaalde groepen beschrijven.…

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.

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

Promotor: A. Achúcarro Co-promotor: A. Boyarsky

Promotor: Prof.dr. H.J.A. Rottgering

The aim of this thesis is to explore the use of Bioorthogonal Antigens to study the cross-presentation pathway.

The radio sky harbours both galactic and extragalactic sources of arcminute- to degree-scale emission of various physical origins. To discover extragalactic diffuse emission in the Cosmic Web beyond galaxy clusters, one must image low–surface brightness structures amidst a sea of brighter compact fore-…

This thesis concerns the relation bettween the good reduction of Shimura varieties and the associated loop groups.

We explored the Universe using weak gravitational lensing, a phenomenon that occurs when light from distant galaxies is bent by the gravitational fields of closer cosmic objects, much like how a lens distorts light.

Promotor: Prof. dr. A.G.G.M. Tielens

Promotor: J.S. Kaastra Co-promotor: E. Constantini

Een interuniversitair colloquium wordt georganiseerd aan de Universiteit Namen van 10-12 April 2024. Jonge onderzoekers die werken op het gebied van mobiliteit en interactie in de Maas-Rijn-regio tussen de negende en vijftiende eeuw worden aangemoedigd om een abstract van maximaal 500 woorden in te…

One of the most important puzzles in modern astrophysics is the nature of dark matter.

Promotores: G.R. de Snoo, B. Sinsin, Co-Promotor: H.H. de Iongh

In this thesis, we use low-frequency and high-frequency radio observations to address the following questions regarding quasars: is the radio loud/quiet quasar dichotomy real?

Balsaminaceae is a diverse plant family characterized by a huge floral morphological diversity.

Bij de afdeling Jeugdrecht en het Grotius Centre for International Legal Studies van de Universiteit Leiden kunt u zich vanaf nu aanmelden voor de Frontiers of Children’s Rights in the Caribbean Region Spring School.

Professor Barend Mons has been appointed Chair of the Commission High Level Expert Group

The name ‘Jambi flora’ refers to fossil plants found as part of a rock formation from the Early Permian (296 million years old), located in the Jambi Province of Sumatra, Indonesia.

Ben je ouderejaars rechtenstudent en wil jij je alvast oriënteren op de arbeidsmarkt? Dan kunt je terecht bij de Young Talent Group. Dit is een online platform met als doel rechtenstudenten te informeren over activiteiten op het gebied van arbeidsmarktoriëntatie. Met meer dan 45 aangesloten kantoren…

ELS lab @Leiden is op zoek naar collega’s die deel willen nemen aan de nieuwe topic group op Goed Werkgeverschap.

On Wednesday, 22 September, at 17.00, this interdisciplinary research group kicks off a series of online seminars.

De ECPR summer school over Interest Group Politics viert zijn 10-jarig jubileum. Om deze speciale editie te vieren, omvat de zomerschool van dit jaar vele gerenommeerde onderzoekers en professoren uit de hele wereld. Als onderdeel van het jubileum wordt bovendien een buitengewone eendaagse conferentie…