Dit paper bespreekt de co-evolutie van enkele soorten in de geslachtengroep Phyllantheae en motten van het geslacht Epicephala.

How presence, abundance and enzymatic activities of AM and EM fungi differently affect soil carbon sequestration processes?

Het Leiden University Green Office heeft goed nieuws: je kunt nu de meest milieuvriendelijke zoekmachine - Ecosia - standaard maken op een openbare LU-computer!

How soil microbial composition impacts structure and composition of the aboveground plant and animal communities?

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,…

Dissochaeta Blume (Melastomataceae, tribe Dissochaeteae) is well-known as a scrambling plant genus found in Southeast Asia, where it is an inhabitant of the tropical rainforests or evergreen forests.

Ook planten maken groeihormonen aan, en kennen een proces van veroudering. Het bestuderen van de genen en de mechanismen hierachter is nuttig voor gewasveredeling en landbouw, maar ook voor medisch onderzoek. Dat stelt Remko Offringa, hoogleraar Ontwikkelingsgenetica van Planten.

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.…

An overview is given of the flows of chlorine and chlorinated hydrocarbons through the Europian Union.

The aim of this thesis was to develop aluminium salt-based nanoparticles that may ultimately be used as adjuvant in human vaccines.

Promotores: Prof.dr. J. Schaye, Prof.dr. S.D.M. White (MPA Garching)

The aim of this thesis is to present novel techniques for proving cryptographic schemes secure against quantum adversaries. Most results are within the context of an idealized model called the ‘quantum random-oracle model’.

Optical cavities are useful tools to enhance the interaction between light and matter, which is important to make good quantum emitters. However, it turns out that the cavities themselves (without any quantum emitters) are already interesting objects to study.

Lezing

Do e-waste workers display enhanced effects of adverse health effects due to informal e-waste processing in Nigeria? Is there a difference between the health outcomes of the exposed and the control groups? Are there difference in health effects within and between job groups (collectors, dismantlers,…

Naar de planten in de tuinen en kassen van de Hortus wordt onderzoek gedaan door studenten en wetenschappers van over de hele wereld.

Huub de Groot

In de Hortus botanicus heeft de penisplant Amorphophallus decus-silvae korte tijd in bloei gestaan. Na twee dagen was de bloei voorbij en is het stuifmeel, dat de mannelijke bloempjes hebben geproduceerd, verzameld. Voor zover de plantenexperts in de tuin kunnen nagaan, was dit pas de derde keer dat…

In september 2023 zijn we begonnen met het transformeren van een onderbenutte buitenruimte in een groenere en meer biodiverse tuin waar alle studenten en medewerkers van de Schouwburgstraat kunnen ontspannen en genieten.

Promotie

Supervisor: P.J.J. Hooykaas

Kunst en cultuur, Stadsnatuur Safari

Promotor: Prof.dr. E.F. Smets

Pectin is a plant cell wall polysaccharide made of mainly D-galacturonic acid (GA) subunits. The potency of the filamentous fungus Aspergillus niger to naturally secrete high amounts of pectinases to degrade pectin has been utilized for the industrial production of pectinases.

This report investigates the different approaches in the authorization process of GMOs for commercial use in the European Union and the United States of America. Three main aspects are considered and analyzed as potential causes of differences in the authorization process of GMOs for commercial use.…

Does the presence of Ring-necked parakeets negatively influence feeding and feeding behaviour of native bird species on artificial bird feeders and if so, what are possible solutions?

This thesis develops a method for direction dependent calibration of the ionosphere in radio interferometric data.

Promotor: G.R. de Snoo, Co-promotores: M.G. Vijver, J.P.M. Vink

The studies in this thesis are focused on the physical effects in the flat band materials. The results contain the discovery of strong enhancement of RKKY spin-spin interactions with specific geometric arrangement and dynamical generation of excitonic order parameter with high magnitude.

In this thesis, we have used numerical approaches to study the effects of translational symmetry breaking on strange metallic systems as realised by the holographic duality⁠.

In een longitudinale studie onderzochten Adva Eichengreen en collega's hoe aspecten van emotionele intelligentie de ontwikkeling van de geestelijke gezondheid van adolescenten beïnvloeden. Zo identificeerden ze potentiële waarschuwingssignalen en doelen voor interventieprogramma's.

BlaC is the β-lactamase of Mycobacterium tuberculosis. We show that it can recover from inhibition by clavulanic acid and that phosphate helps it do so.

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

Promotores: Prof.dr. W.J.G.M. Peijnenburg & Dr. M.G. Vijver

Migration imposes special pressures on the meaning, experience and organization of lifecycle rituals. These pressures are felt most strongly by Muslim migrants to Western Europe. In this innovative study, Nathal M. Dessing examines the effects of migration on the life cycle rituals of Moroccan, Turkish…

The aim of this thesis was to develop novel treatment strategies for different types of eye melanoma utilizing zebrafish models. We first establish orthotopic and ectopic xenograft models for uveal and conjunctival melanoma by engraftment of the immortalized cells derived from these tumors into zebrafish…

Freshwater biodiversity has been threatened by eutrophication due to excessive nutrients in the environment. Releasing the freshwater species from such pressures requires efforts from industry and manufacturers to avoid emissions to vulnerable and high-risk regions.

The formation of stars and planets happens over multiple scales, which can interact. In particular, planet formation happens in the dense, complex environment of star forming regions.

Overzicht van de vacatures bij de afdeling Economie.

This thesis contributes to studying primordial cosmology theories and their detectability in future observations.

In our research protein translocation from Agrobacterium into yeast and plant cells is studied to obtain fundamental insights in the translocation process

What is the role of the rebound effect in achieving environmental savings from transport eco-innovation? Are traditional definitions of the rebound effect adequate in the context of transformative innovations and multidimensional environmental issues?

Promotie

Het gaat niet goed met de biodiversiteit in Nederland. Hoogleraar Natuurlijk Kapitaal Koos Biesmeijer combineert onderzoek met praktische adviezen: van het vergroenen van industrieterreinen tot oplossingen die geïnspireerd zijn op de hightech-natuur. Oratie op 9 maart.

In the Schouwburgstraat, LUGO is currently redesigning the back-garden in order to increase biodiversity and make it a more beautiful space. Throughout October 2023 until March 2024, we will be making changes to the garden with our team of volunteers.

Increasing the efficiency of gene targeting (GT) as a genome editing tool in plants has been an important goal in plant biotechnology.

Promotores: Prof.dr. T.H.W. Bäck, Prof.dr. M. Bongards (Cologne University)

Het belangrijkste doel is het onderzoeken van de mogelijkheid om het lichaam te leren een soortgelijke fysiologische (autonome, neuro-endocriene of immuunsysteem) en fysieke (b.v. desensibilisatie van hardnekkige lichamelijke symptomen) reactie te laten vertonen op placebomedicatie als op actieve medicatie…