The majority (80%) of e-waste generated globally are recycled informally in developing countries.

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.

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:…

Almost all bacteria are enveloped by a cell wall that provides cellular protection.

Cardiovascular disease is the leading cause of death worldwide.

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.

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.

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.

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…

Promotores: Prof.dr. J. Kuiper, Prof.dr. P.H.A. Quax, Co-promotor: I. Bot

Op donderdag 17 oktober organiseerde de masteropleiding Crisis and Security Management (CSM) een informatief alumni-panel met vijf afgestudeerden uit verschillende cohorten. Het panel bood huidige studenten de kans om te luisteren naar professionals die hun eigen weg hebben gebaand in crisis- en vei…

Material circularity and energy efficiency are highly relevant and intertwined issues for the transition towards a carbon-neutral and circular built environment. In the Netherlands, the building sector has been rendered a priority towards a circular and low-carbon society.

Twee onderzoekers uit de onderzoeksgroep Plant ecology and Phytochemistry van het Instituut Biologie Leiden hebben beurs gekregen van de Stichting Technologische Wetenschappen.

Plant architecture has distinct forms in different plant species, but also within a species the finalarchitecture of a plant is determined by its gradual development and changes therein induced by environmental conditions during the plant’s life cycle.

Bert van Duijn is werkzaam op het gebied van planten-elektrofysiologie.

Kunst en vrije tijd, Kunst en vrije tijd

Promotie

Laboratory, observation and modeling work on the dissociation of polycyclic aromatic hydrocarbons in interstellar environments and the formation of new molecular species through the fragmentation process.

How can mega sand nourishments, such as the Sand Motor, be designed and managed for optimal ecosystem services provision ?

This dissertation is an experimental study of laser-generated, atmospheric pressure, transient toroidal helium plasmas.

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).

Promotor: Prof.dr. R.M.H. Merks

The applications of studying the early development of insects range from agriculture to material science.

Invasive lobular carcinoma (ILC) is the second most common type of breast cancer.

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-…

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. E. Bouwman, Co-promotor: S. Bonnet

This work describes several studies into the electroreduction of carbon dioxide (CO2RR), both regarding mechanistical aspects and catalyst stability considerations. Mechanistic insights into carbon-carbon bond formation on a silver catalyst are described in Ch 2, were we find an acetaldehyde-like surface…

Promotor: Prof.dr. J.N. Kok, Co-promotor: F.J. Verbeek

With the emergence of online social networks (OSNs), the way people create and share information has changed, which becomes faster and broader than traditional social media.

Patients share valuable advice and experiences with their peers in online patient discussion groups.

Leiden University offers a unique range of summer courses where you can broaden or deepen your knowledge or share your expertise with fellow students. The choice of academic courses is very diverse, ranging from Law, Big Data, Languages and Linguistics to Maths and Natural Sciences, Biology, Biomedical…

Promotie

Vandaag, 23 september, wordt Paul Hooykaas, hoogleraar moleculaire genetica in het Instituut Biologie Leiden (IBL), geïnstalleerd als Akademiehoogleraar.

Welke stoepplanten groeien waar en waarom? Hoe maken we de stad groener? En hoe genezen we plantenblindheid? Het antwoord op deze vragen zoekt Nienke Beets, PhD kandidaat stadsflora en citizen science, samen met de nieuwsgierige burgers van Nederland.

2.240 plantenextracten van 1.299 verschillende plantensoorten van Nederlandse bodem. Dat is de collectie van de Dutch Extract Library, die onlangs is overgebracht naar het Instituut Biologie Leiden. Voor Pingtao Ding, plantenbioloog en contactpersoon van deze bibliotheek, is dit een ware schatkamer.…

Within this thesis the central stage is taken by the discovery and investigation of transglycosylation of sterols. First, investigation focuses on the development of a method to accurately detect and quantify glucosylated metabolites in biological materials.

Plants and their pollinators form complex interaction networks. Within these networks, species differ widely in the number of species they interact with.

As a virtually inexhaustible source, solar energy plays a major role in future global energy scenarios.

What are the global relationships between environmental conditions and abundance of distinct types of mycorrhizal fungi in soil and plant roots?

De tentoonstelling Beschermde planten in de Hortus botanicus laat het belang van biodiversiteit zien aan de hand van verhalen over beschermde planten. Geert de Snoo, decaan van de faculteit der wiskunde en natuurwetenschappen en hoogleraar Conservation Biology, opende de tentoonstelling op 22 mei 2015,…

Projecten van de afdeling Environmental Biology