549 zoekresultaten voor “start and plaats formation” in de Publieke website
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Atom addition reactions in interstellar ice - new pathways towards molecular complexity in space -
Promotor: Prof.dr. H.V.J. Linnartz, Co-Promotores: S. Ioppolo, H.M. Cuppen
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Diagnostics for mechanical heating in star-forming galaxies
Promotor: F.P. Israel, Co-Promoter: R. Meijerink
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Interstellar Catalysts and the PAH universe
Organic molecules in interstellar space are important as they influence the structure of galaxies and star formations. Studying catalytic processes in space allows us to understand how molecular species are formed and chemically evolved in the interstellar medium and solar system objects.
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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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Neutral outflows in high-redshift dusty galaxies
Outflows are crucially important for the gas budget and evolution of luminous star-forming galaxies and AGNs, with observed mass outflow rates of the same order as the star formation rate. Greater star formation and black hole growth lead to more intense feedback and outflows, resulting in self-regulated…
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Young suns and infant planets: Probing the origins of solar systems
Even though more than 4000 extra-solar planets are known today, only a small fraction of these has been captured in an image. To better understand the planet formation mechanisms in solar-like environments we started the Young Suns Exoplanet Survey (YSES).
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Light Weighed: On the Statistics and Systematics of Weak Gravitational Lensing
In astronomy, the interpration of observations and measurements plays a crucial role: we rely purely and fundamentally on the information that reaches us as observers. And 80% of all matter in the universe is undetectable directly.
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Geometry of Vegetation Pattern
One of the effects of climate change is the phenomenon of desertification, a process that occurs in semi-arid and arid areas and causes land degradation as well as vegetation loss. Due to the lack of resources, vegetation self-organizes to sustain itself by forming large-scale spatial patterns.
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Causing a stir: Radiative and mechanical feedback in starburst galaxies
Promotores: Prof.dr. F.P. Israel, Prof.dr. P.P. van der Werf
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A molecular journey : tales of sublimating ices from hot cores to comets
The thesis explores how interstellar chemistry evolves as a function of time and changing physical architectures during the formation of stars.
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RNA splicing in breast cancer progression
In this thesis, we aimed to better understand the underlying mechanisms involved in TNBC progression and metastasis formation and discover new targets to reduce breast cancer related deaths.
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Structural characterization of the cell envelope of Actinobacteria under changing environments
Bacteria have the ability to alter their morphology in order to adapt to changing environments.
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The role of the interleukin 12 family in atherosclerosis
Promotor: Johan Kuiper, Co-promotor: Saskia C.A. de Jager
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Rare Earth Supply Chain and Industrial Ecosystem: A Material Flow Assessment of European Union
1) Assess the trends in supply and production status of these critical minerals and mineral products worldwide and Europe’s dependence including on intermediate products such as permanent magnets, RE based super alloys, batteries, polishing compounds, phosphors, catalysts etc. 2) Trace the entire value…
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VLA-radiotelescoop onthult nieuwe details over ontstaan sterren en planeten
Sterrenkundigen onder leiding van John Tobin hebben dankzij nieuwe waarnemingen, verricht met de Amerikaanse Very Large Array-radiotelescoop (VLA), meer inzicht verkregen in het geboorteproces van meervoudige sterren.
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What’s CLIL about bilingual education? A window on Content and Language Integrated Learning pedagogies
In Nederland bieden ongeveer 130 van de 700 middelbare scholen een tweetalige stroom aan. Toch is er nog maar weinig wetenschappelijk onderzoek naar CLIL (content and language integrated learning). Met haar proefschrift wil Evelyn van Kampen (promovendus bij het ICLON) bijdragen aan een beter begrip…
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Putting a spin on it: amyloid aggregation from oligomers to fibrils
This thesis focuses on amyloid proteins, a class of proteins that convert into amyloid fibrils.
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UV Photodesorption and Photoconversion of Interstellar Ices
This thesis is an experimental study of the UV irradiation of the interstellar ice analogues, relevant for the different stages of the star and planet formation sequence.
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Succesvolle start bedrijfsDOT’s
De bedrijfsDocent Ontwikkel Teams voor natuurkunde, scheikunde en wiskunde zijn in maart succesvol van start gegaan. In de bijeenkomsten, waar professionals uit het onderwijs onder leiding van een deskundige samenkomen, kunnen de docenten werken aan hun eigen ontwikkeling als docent en aan de ontwikkeling…
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Feestelijke start aanleg Schilperoortpark
De eerste boom is geplant: op woensdag 6 maart vond de feestelijke start plaats van de aanleg van het Schilperoortpark in het Leiden Bio Science Park. Wethouder Paul Dirkse en vicevoorzitter van het college van bestuur Martijn Ridderbos plantten de boom samen met Cas Schilperoort. Hij is de kleinzoon…
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Using insertional mutagenesis to identify breast cancer drivers and therapy resistance genes in mice
In this thesis, we used genetically engineered mouse models to identify genes and pathways that are involved in ILC formation and in the development of resistance to FGFR-targeted therapy.
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Functional xylem anatomy: intra and interspecific variation in stems of herbaceous and woody species
My PhD thesis investigates the ecological significance of resistance against drought-induced air bubble formation inside the water conduits of plants (embolism), and the plasticity and functional aspects of stem anatomical traits in woody and herbaceous species.
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X-raying extragalactic gas: warm-hot gas in the EAGLE simulations
I have studied the hot, diffuse gas around and between galaxies. Specifically, I have used the EAGLE numerical simulations of galaxy formation to predict the properties of this gas, and I have used those properties to predict specific observables: soft X-ray absorption and emission lines.
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Generalized Strictly Periodic Scheduling Analysis, Resource Optimization, and Implementation of Adaptive Streaming Applications
This thesis focuses on addressing four research problems in designing embedded streaming systems.
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pharmacokinetics-pharmacodynamics in zebrafish: integration of experimental and computational methods
The zebrafish is a promising vertebrate model organism in early drug discovery and development.
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Project arbeidsmarktvoorbereiding van start
Op 25 mei 2016 was in Museum Volkenkunde de kick-off van het project arbeidsmarktvoorbereiding van de Universiteit Leiden. Studenten, bestuurders, mensen uit het bedrijfsleven en docenten spraken over de behoefte aan en plannen voor arbeidsmarktvoorbereiding van studenten.
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Digging for data: the rise and fall of a Miocene mammal biodiversity hotspot in the Vallès-Penedès (Catalonia, Spain)
The Vallesian, 11.1-9 Ma, was a special time in the Vallès-Penedes basin near Barcelona, where a biodiversity hotspot existed. Europe had a subtropical climate, with rhinos, forest giraffes, lions, hyenas, flying squirrels and primates.
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Start van nieuwe patiëntenstudie
Het Navigatielab is gestart met een onderzoek naar de effecten van de door ons ontwikkelde navigatietraining Wayfinder. Onderzoeker Milan van der Kuil leidt dit onderzoek en bekijkt hoe het navigatievermogen van mensen met niet aangeboren hersenletsel verbeterd kan worden.
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Lines in the sand: behaviour of self-organised vegetation patterns in dryland ecosystems
Vast, often populated, areas in dryland ecosystems face the dangers of desertification.
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Invariant manifolds and applications for functional differential equations of mixed type
Promotor: S.M. Verduyn Lunel
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De ijstijd mag starten
Een internationaal team astronomen, onder leiding van sterrenkundigen werkzaam aan de universiteiten van Amsterdam, Leiden en Hawaii, mag als een van de eerste in de wereld gaan meten met de James Webb Space Telescoop. Met hun project 'Ice Age' gaan ze ijzige stofdeeltjes in de ruimte onderzoeken.
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Haico van Attikum
Faculteit Geneeskunde
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Céline Zaepffel
Faculteit der Geesteswetenschappen
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Paulus Quax
Faculteit Geneeskunde
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Dorien Peters
Faculteit Geneeskunde
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Mila van Nieuwenhuizen
Faculteit der Geesteswetenschappen
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Joeri Lammerts
Faculteit Governance and Global Affairs
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Cornelis Hokke
Faculteit Geneeskunde
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Enthousiaste start EL CID
Ruim 3500 enthousiaste Leidse eerstejaars, waarvan 80% universitair, verzamelen zich op maandagochtend 13 augustus voor het eerst op de Lammermarkt bij de start van de EL CID. Bij een stevige beat vormen de groepjes zich in twee shifts, om 9.30 u en om 11.00 u, rond hun mentoren.
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ERC Starting Grant voor chemicus Sander van Kasteren
Kunnen suikerpatronen op cellen het immuunsysteem activeren om kanker te bestrijden? Sander van Kasteren gebruikt de beurs van de European Research Council (ERC) om te ontdekken of dit mogelijk is.
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PI3K signaling and adherens junctions in invasive lobular breast cancer
Invasive lobular carcinoma (ILC) is the second most common type of breast cancer.
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Palladium-catalyzed carbonylative synthesis of carboxylic acid anhydrides from Alkenes
Hydrocarbonylation of alkenes with carboxylic acids in synthesis of carboxylic acid anhydrides is relatively less explored. We herein present a study and optimization of a palladium-catalyzed hydrocarbonylation reaction of alkenes using carboxylic acids as the nucleophile, by which acid anhydrides can…
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Dynamics and radiation from tidal disruption events
When a star gets too close to a supermassive black hole, it is torn apart by strong tidal forces in a tidal disruption event (TDE).
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Cholesterol metabolism and hematopoiesis interaction in atherothrombosis
Cardiovascular disease is the leading cause of death worldwide.
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Off the wall: characterisation and exploitation of a cell wall deficient life style in filamentous actinomycetes
Almost all bacteria are enveloped by a cell wall that provides cellular protection.
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High-contrast imaging polarimetry of exoplanets and circumstellar disks
Understanding the formation and evolution of planetary systems is one of the most fundamental challenges in astronomy. To directly image and study young exoplanets and the circumstellar disks they form from, dedicated high-contrast imaging instruments are built.
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Laser-generated toroidal helium plasmas
This dissertation is an experimental study of laser-generated, atmospheric pressure, transient toroidal helium plasmas.
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Squaramide-based supramolecular polymers
Supramolecular polymers are class of materials that are formed by non-covalent interactions such as hydrogen bonding, π-π interactions, electrostatic interactions and the hydrophobic effect.
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Dark ice chemistry in interstellar clouds
This thesis is largely an experimental study on the formation of solid-state simple and complex organic molecules in the H2O-rich and CO-rich ice phases of dense interstellar clouds and dark cores.
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Giant galactic outflows and shocks in the Cosmic Web
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-…