527 zoekresultaten voor “us politiek” in de Publieke website
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Studies of dust and gas in the interstellar medium of the Milky Way
Promotor: Prof.dr. A.G.G.M. Tielens
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Cosmic tomography with weak gravitational lensing
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.
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Gibbs-non-Gibbs transitions and vector-valued integration
Promotor: W. T. F. den Hollander, F. H. J. Redig
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Musems, Collections and Society | Yearbook 2021
In this Yearbook you will find some fascinating examples of what was done in 2021, not only by ourselves, but also by our international colleagues.
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Mind the gap: gas and dust in planet-forming disks
Promotores: Prof.dr. E.F. van Dishoeck, Prof.dr. C.P. Dullemond
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The music of language: exploring grammar, prosody and rhythm perception in zebra finches and budgerigars
Promotor: C.J. ten Cate
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Granular Flows: Fluidization and Anisotropy
Promotor: Prof.dr. M.L. van Hecke
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Galaxy formation traced by heavy element pollution
Galaxies form and evolve through close interaction with their surroundings. As a result, the heavy elements ('metals') that are synthesized in stars, are found both inside and outside galaxies.
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The origins of friction and the growth of graphene, investigated at the atomic scale
Promotor: J.W.M. Frenken
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Unconditionally secure cryptographic protocols from coding-theoretic primitives
This dissertation presents new cryptographic protocols, which can be divided into two families.
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Dynamics of coupled quantum systems
Thermodynamics is one of the founding scientific pillars that has helped us better understand heat engines, biology, ecosystems, and even black holes. While it fundamentally describes large systems by examining the bulk behavior of their constituents, it is anchored in the statistical equivalence of…
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Gauge theory and nematic order : the rich landscape of orientational phase transition
Promotor: J. Zaanen
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Resistance to PARP inhibition by DNA damage response alterations in BRCA1/2-deficient tumors
Inactivating mutations in BRCA1 or BRCA2 genes predispose to several types of cancer.
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Understanding deep meta-learning
The invention of neural networks marks a critical milestone in the pursuit of true artificial intelligence. Despite their impressive performance on various tasks, these networks face limitations in learning efficiently as they are often trained from scratch.
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Exploring the interactions of M dwarf winds and cosmic rays
This thesis focus on the interaction between M dwarf stellar winds and Galactic cosmic rays and the possible effects on the habitability of exoplanets.
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Dual Complexes of Semistable Varieties
This thesis is comprised of three chapters covering the theme of studying semistable varieties by looking at their dual combinatorial objects.
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North Sea noise in the Anthropocene: an impact study of human-made impulsive sounds on free-ranging cod
Sound is everywhere in the marine environment and hearing is therefore a very important for stimuli for fish. They use sound for orientation and communication, during migration, aggregation and spawning, but also for detection of prey and predators.
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Cosmic particle acceleration by shocks and turbulence in merging galaxy clusters
In this thesis, I study the formation of large-scale structure and the physics of particle acceleration at large scales (~Mpc).
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Molecular inheritance from cloud to disk: a story of complex organics and accretion shocks
Stars like the sun are born in large molecular clouds existing from gas and dust. During the formation process, the chemical composition of the material can be altered drastically by the changing physical conditions.
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The endocannabinoid system in zebrafish larvae
In this thesis, we have studied the potential of the zebrafish larval model in studying the ECS, as a complementary model to the existing rodent models.
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The activation mechanisms of G protein-coupled receptors: the case of the adenosine A2B and HCA2/3 receptors
Promotor: A.P. IJzerman
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Novel detectors and algorithms for electron nano-crystallography
Promotor: Prof.dr. J.P. Abrahams, Prof.dr. M. van Heel
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Using soil inoculations for ecological restorations
How soil microbial composition impacts structure and composition of the aboveground plant and animal communities?
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Pattern mining for label ranking
Promotor: J.N. Kok, Co-promotor: C.M. Soares, A.J. Knobbe
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Latency, Energy, and Schedulability of Real-Time Embedded Systems
Systems are called real-time systems, if the correctness of the system does not only depend on the correctness of the system output but also on whether the output is delivered on time.
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Error bounds for discrete tomography
Promotores: K.J. Batenburg, B. Koren
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Extremely loud & incredibly far: observing radio bright AGN into the cosmic dawn
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:…
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Resolving gas-phase metallicity in galaxies
Galaxies are environments where gas coalesces, cools, and is converted into stars. However, it remains unclear the exact mechanisms through which galaxies acquire, redistribute and lose their gas.
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Brendan Carroll
Faculteit Governance and Global Affairs
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Anchrit Wille
Faculteit Governance and Global Affairs
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Tom Louwerse
Faculteit der Sociale Wetenschappen
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Alex Schilin
Faculteit der Sociale Wetenschappen
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Femke Bakker
Faculteit der Sociale Wetenschappen
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Babak Rezaeedaryakenari
Faculteit der Sociale Wetenschappen
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Jan Meijer
Faculteit der Sociale Wetenschappen
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Harmen van der Veer
Faculteit der Sociale Wetenschappen
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Natascha van der Zwan
Faculteit Governance and Global Affairs
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Roel Bekker
Faculteit Governance and Global Affairs
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Simon Otjes
Faculteit der Sociale Wetenschappen
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Bert Koenders
Faculteit Governance and Global Affairs
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Yuan Yi Zhu
Faculteit der Sociale Wetenschappen
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Joop van Holsteijn
Faculteit der Sociale Wetenschappen
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Protesten China: Politici niet bang voor bevolking, wel voor collega’s
Dat studenten de protesten in China tegen het zero-Covidbeleid zijn begonnen, is voor politici extra gevaarlijk. Chinadeskundige Frank Pieke legt uit waarom.
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Frank Pieke bij Vroeg! van NPO Radio 1 over de relatie tussen Rusland en China
Hoogleraar Frank Pieke vertelt in de podcast Vroeg! van NPO Radio 1 over de relatie tussen Rusland en China en hoe Rusland langzaam probeert een Aziatisch land te worden.
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Tachtigers in de ondergrondse, spelen met de taal van de politiek, en nog veel meer: onofficiële poëzie uit China in de Digitale Collecties
Ruim 30.000 bladzijden nieuw materiaal is nu ontsloten in de online collectie van onofficiële poëzie-publicaties uit China, onderdeel van de Leidse Digitale Collecties. Deze tijdschriften en boeken worden gemaakt buiten het systeem, in eigen beheer, en zijn invloedrijk maar uiterst moeilijk te vinden.…
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Isabelle Duyvesteijn over Nederland en machtspolitiek
In 2018 neemt Nederland voor een jaar plaats in de VN Veiligheidsraad en in maart is ons land er zelfs voorzitter. Hoe komt het dat ons kleine landje dit toch voor elkaar krijgt? Volgens Isabelle Duijvesteijn is het een kwestie van machtspolitiek, zo legt ze uit aan het Leidsch Dagblad.
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Impact of plant hormones on growth and development of actinobacteria
Plants are colonized by an astounding number of microorganisms that can provide different life-support functions, including nutrient acquisition and protection against (a)biotic stresses like drought or pathogen attack.
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On metrics and models for multiplex networks
In this thesis, we extend the concept of null models as canonical ensembles of multi-graphs with given constraints and present new metrics able to characterize real-world layered systems based on their correlation patterns.
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Distant star formation in the faint radio sky
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.
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Astrophysical plasma modeling of the hot Universe: Advances and challenges in high-resolution X-ray spectroscopy
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.