1,279 zoekresultaten voor “evolution and development” in de Publieke website
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The characteristics of galaxies with powerful radio jets
Radio jets are important to the evoultion of galaxies. However, it is still not fully understood how a radio jet can be triggered.
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Musems, Collections and Society | Yearbook 2020
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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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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Terrorism and Political Violence
Begrijpen van het evoluerende landschap van extremisme in de 21e eeuw.
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Integrative taxonomy of araneomorph spiders: Breathing new life into an old science
Taxonomy as a science has accumulated data and knowledge for more than 250 years.
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Mechanistic studies of the water oxidation reaction with molecular iron catalysts
In this dissertation iron-based homogeneous catalysts were synthesized, characterized and investigated for water oxidation activity.
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Artificial metallo-proteins for photocatalytic water splitting: stability and activity in artificial photosynthesis
Climate change is one of the largest challenges faced by humanity. To combat this research into alternatives to fossil fuels is ongoing. Dihydrogen is considered a good alternative fuel, since its burning only forms water.
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Hybrid zone dynamics in amphibians
Hybrid zones occur where two species meet and produce offspring (hybrids). Typically, hybrids show a considerable reduction in fitness. In this thesis two hybrid zones are treated.
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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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Invariant manifolds and applications for functional differential equations of mixed type
Promotor: S.M. Verduyn Lunel
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Citizenship, Migration and Global Transformations
Europese burgers worden geconfronteerd met uitdagingen op het gebied van globalisering, migratie, technologische ontwikkelingen en klimaatverandering. Deze uitdagingen vergen het uiterste van onderlinge internationale en intergenerationele solidariteit, wat rechtstreeks betrekking heeft op de grondslagen…
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Nieuwe planten produceren zonder zaaien
Zonder een gewas opnieuw te zaaien toch nakomelingen produceren, die zelfs groter kunnen zijn dan de ouderplant. Volgens Leidse onderzoekers is dat mogelijk door het overstimuleren van één gen. Daarmee verjongt een cel en gaat deze terug naar de embryonale fase.
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Design of homogeneous water oxidation catalysts
To design the ideal water oxidation catalyst, understanding of the catalytic mechanism and decomposition pathways is essential.
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Monsters in the Deep: Using simulations to understand the excess baryonic mass in the centres of high-mass, early-type galaxies
This thesis aims to enhance our understanding of galaxies by testing theoretical models of galaxy formation against observations, particularly in the cases of extreme systems which have been found to have an excess of baryonic mass in their central regions, in the form of either supermassive black holes…
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Early death of massive galaxies in the distant universe
Promotor: M. Franx, Co-Promotor: I.F. Labbé
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Ben Wielstra
Wiskunde en Natuurwetenschappen
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Anagnostis Theodoropoulos
Wiskunde en Natuurwetenschappen
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Studying the Benefits of Using UML on Software Maintenance: an Evidence-Based Approach.
Including modelling as part of software development appears to have various benefits.
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‘Defense, diplomacy, development… and disillusions’
De opzet van de Britse en Nederlandse missies in Zuid-Afghanistan werd ingegeven door Westerse vooringenomenheid, in plaats van door een gedegen, open analyse. Tot deze slotsom komt politicologe en majoor Mirjam Grandia in haar promotieonderzoek naar de Britse en Nederlandse besluitvorming rond de missies…
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Developmental effects of polystyrene nanoparticles in the chicken embryo
There is concern about the threat that nanoplastics (NPs) may pose to both wildlife and humans. This thesis explores the mechanisms of toxicity of polystyrene nanoparticles (PS-NPs) in chicken embryo.
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Development of a consistent methodology for assessment of the combined effects of metal-based chemicals to lettuce (Lactuca sativa L.)
Hoe kan de methode om de gecombineerde effecten van metaal-gebaseerde chemische stoffetn te bepalen worden verbeterd?
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IBL Spotlights
Tijdens de IBL Spotlights bespreken onderzoekers van de afdeling Science Communication & Society hun nieuwste bevindingen en realisaties. Na de lezingen ben je welkom bij de borrel op de eerste verdieping van het Sylviusgebouw.
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Aromatic and Cosmetic (MAC) Plants in the Utilisation of the Plural Medical System in Pirgos and Praitoria for Community Health Development in Rural
Promotor: Prof.dr. L.J. Slikkerveer
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The colours of the extreme universe
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.
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Sizing up protoplanetary disks
This thesis focuses on protoplanetary disks: flattened structures of gas and dust around young stars in which planets are expected to form and grow.
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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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Levensverlengend gen bij planten ontdekt
Oogst na oogst binnenhalen van rijstveld, zonder nieuwe rijstplanten te zetten? Door een ontdekking komt dit scenario misschien wel dichterbij. Leidse wetenschappers hebben een gen ontdekt waarmee ze eenjarige planten na het bloeien opnieuw laten groeien, in plaats van dat de planten sterven. Publicatie…
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‘Onbelangrijk’ plantengen blijkt wel degelijk essentieel
Leidse biologen hebben aangetoond dat een gen dat aanwezig is in planten, dieren en gisten wel degelijk een belangrijke rol speelt in planten, al werd daar jaren anders over gedacht. Zonder het gen blijkt de ontwikkeling van vaatweefsel in planten niet goed op gang te komen. Publicatie in Nature Plants…
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Star-Forming Galaxies at the Cosmic Dawn
Promotor: Prof.dr. M. Franx, Co-Promotor: Rychard Bouwens
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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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Ice and Gas in Protostellar Clouds and Planet-forming Disks
This thesis takes steps toward understanding the interaction between gas-phase and solid-state molecules in star- and planet-forming regions.
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Tommy van Avermaete
Universitaire Bibliotheken Leiden
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X-ray spectroscopy of merging galaxy clusters
This thesis focuses on the X-ray spectral analysis of merging galaxy clusters and the plasma code development for future high-resolution X-ray spectroscopy observations.
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Predicting the future: Predictive control for astronomical adaptive optics
The field of exoplanet research is rapidly advancing through the development of new technology, observing techniques, and post-processing methods.
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Functionalized two-dimensional membranes and materials for solar-to-fuel devices: a multiscale computational approach
In the current global context, there is a pressing need to address sustainable energy supplies to safeguard our Planet and its ecosystems. The choices made by human society have a significant impact on genetic evolution and climate.
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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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Simon Portegies Zwart
Wiskunde en Natuurwetenschappen
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Evolutionary adaptability of β-lactamase: a study of inhibitor susceptibility in various model systems
β-Lactamases are enzymes that can break down β-lactam substrates, such as antibiotics, preventing the use of these antibiotics for the treatment of various infectious diseases. However, some compounds, β-lactamase inhibitors, can block these enzymes allowing for possible treatments using a combination…
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Cold gas in distant galaxies
The formation and evolution of galaxies is fundamentally driven by the formation of new stars out of cold gas.
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George Miley
Wiskunde en Natuurwetenschappen
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Jennifer Anderson
Wiskunde en Natuurwetenschappen
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Tales Yamamoto
Wiskunde en Natuurwetenschappen
- Leiden-Delft-Erasmus Universities Conferentie Governance of Migration and Diversity
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A radio view of dust-obscured star formation
Within the field of astronomy, understanding how galaxies grow and evolve from the Big Bang to the present day is a challenging and complex question.
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The distribution of stellar mass in galaxy clusters over cosmic time
Promotor: Prof.dr. K.H. Kuijken, Co-Promotor: H.Hoekstra
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Iron complexes as electrocatalysts for the water oxidation reaction
In this dissertation, the synthesis and characterization of a series of iron complexes based on different ligand platforms are described.
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Measuring sustainability: an elaboration and application of the system of environmental-economic accounting for Indonesia
Indonesia is experiencing various environmental challenges related to its fast economic growth. Therefore, it is necessary to have measurable and applicable indicators to obtain accurate data and information regarding the costs of adverse environmental impacts arising from economic activities to support…
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Environmental and health impact of informal e-waste recycling
The majority (80%) of e-waste generated globally are recycled informally in developing countries.
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Night Spaces: Migration, Culture and Integration in Europe (NITE)
Hoe worden nachtruimtes verbeeld, geproduceerd, ervaren en verteld door migrantengemeenschappen in Europa? Dit onderzoeksproject onderzoekt deze vraag in acht Europese steden: Aarhus, Amsterdam, Berlijn, Cork, Galway, Lissabon, Londen en Rotterdam.
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Bart Roep
Faculteit Geneeskunde