Een nieuwe manier om het licht van verre planeten te analyseren zou ons bewijs kunnen leveren van buitenaardse planten, schrijft astronomie-auteur Colin Stuart in de New Scientist. In zijn artikel beschrijft hij het werk van de groep van de Leidse astronoom Rob van Holstein. Dit team detecteerde afgelopen…

Planeten in andere zonnestelsels bevatten waardevolle informatie over het ontstaan van planeten en leven. Promovenda Yapeng Zhang heeft hun atmosferen bestudeerd door te kijken naar hun kleinste onderdelen: isotopen. Met haar onderzoek hoopt ze te ontdekken wat ons eigen zonnestelsel uniek maakt.

Van onderwijs tot een verrijkende ervaring

Wat doet de Universiteit Leiden om haar gebouwen en campussen toekomstbestendig en onafhankelijk van fossiele energie te maken?

What is the effect of light at night on plant phenology and physiology, and how does this affect plant interactions with other species?

Tijdens het bestuderen van zestien jaar aan meetgegevens van jonge sterren ontdekte de Leidse masterstudent Sam de Regt dat twee van die sterren nog gehuld waren in geboortewolken. Nog niet eerder bracht iemand deze twee sterren zo scherp in beeld. Hij publiceert zijn opschoonmethode en de nieuwe afbeeldingen…

Sterrenkundige Ignas Snellen onderzoekt atmosferen van exoplaneten met als uiteindelijk doel aanwijzingen voor leven te vinden. Dat lukt steeds beter dankzij alsmaar slimmere meetmethoden van zijn onderzoeksgroep. ‘Binnen tien jaar wordt het echt spannend.’ Oratie 8 november.

Promotor: C. W. J. Beenakker, Yu. V. Nazarov, Co-promotor: J. Tworzydlo

Promotor: Prof.dr. E.F. van Dishoeck, Co-Promotor: M.R. Hogerheijde

Promotor: Prof.dr. G.P. van Wezel

Promotor: K. Kuijken, Co-Promotor: H. Hoekstra

Many galaxy clusters exhibit bright diffuse radio emission that traces the underlying structure of the intracluster medium (ICM).

Promotores: Prof.dr. J. Aarts, Prof.dr. J.M. van Ruitenbeek

The field of science communication is very broad. Below is a list of organisations where SCS students can fulfill internships or where alumni have found jobs.

This work describes the use of click-to-release chemistry to get spatiotemporal control over immunocytokine activity. Until now, immunocytokines (cytokines coupled to a tumor-targeting-moiety) remained active throughout the body, being able to bind their respective receptors, causing mild to severe…

Promotores: H. Schiessel, G.T. Barkema

Natural history collections provide invaluable sources for researchers with different disciplinary backgrounds, aspiring to study the geographical distribution of flora and fauna across the globe as well as other evolutionary processes.

Promotores: Wim Jiskoot; Ferry Ossendorp

Promotor: P.J.J. Hooykaas, Co-Promotor: E.J. van der Zaal

A modern ship design process is subject to a wide variety of constraints such as safety constraints, regulations, and physical constraints.

Promotor: W. Jiskoot, Co-promotor: A. Hawe

Promotor: Jelle S. Kaastra Co-promotor: Jelle de Plaa

My PhD project studies how the temporally sequential Hox gene expression is regulated during head-tail patterning of the frog embryo.

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.

Promotor: Prof.dr. R. Verpoorte, Co-Promotor: Dr. Young Hae Choi

Promotores: Prof.dr. A.G.G.M. Tielens, Prof.dr. L. Kaper (UvA)

A management strategy has been developed for field margins to reduce pesticide drift to non-target areas and to promote biodiversity on arable land. To this end, 3 and 6 m wide strips along the edges of winter wheat, sugar beet and potato crops have been left unsprayed with herbicides and insecticides…

The function of TLRs in innate immunity has aroused worldwide attention soon after its discovery. Because of the broad functions of TLR2 in innate immunity, the drive for the development of TLR2-targeted vaccines or therapeutic treatments has accelerated in the last decades.

Geometric phases lead to a nontrivial interference result when an electron's different quantum mechanical paths choices encircle a magnetic coil in an Aharonov-Bohm experiment.

Promotor: J. Zaanen

Promotor: Prof.dr. F.S. de Boer, Co-promotor: D. Clarke

Humans perceive the real world through their sensory organs: vision, taste, hearing, smell, and touch. In terms of information, we consider these different modesalso referred to as different channels of information or modals.

Promotor: Prof.dr. M.L. van Hecke

Gibbs measures, as used in Statistical Mechanics, have a definition that is remarkably similar to the definition ofg-measures, used in dynamical systems.

Promotor: Prof.dr. K.H. Kuijken, Co-Promotor: H.Hoekstra

The formation and evolution of galaxies is fundamentally driven by the formation of new stars out of cold gas.

Promotor: J.W.M. Frenken

Promotor: C.J. ten Cate

The Standard Model (SM) of particle physics fails to explain several observed phenomena and is incomplete. In order to resolve this problem, one may extend the SM by adding new particles.

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…

Despite the history of studies on methanol formation from CO2, the dominant elementary reaction steps that constitute the chemical mechanism for this catalyzed process are not determined.

Promotor: I. A. G. Snellen, Co-promotor: M. A. Kenworthy

Building a Deep Cross-media Transfer Network to extract visual relations that relieve the problem of insufficient training data for visual tasks.

Promotor: Promotor: W.Th.F. den Hollander, Co-promotor: V. Sidoravicius.

Promotor: H.J.A. Röttgering, Co-promotor: M. Haverkorn

Large carnivore population is globally declining as a result of the fragmentation of habitat, large prey depletion and retaliatory killing by pastoralists.

Traditionally, vaccines are administered intramuscularly using conventional hypodermic needles, which cause pain and distress. Microneedles are very short needles (smaller than 1 mm) that are practically invisible to the naked eye.

Promotor: Prof.dr. T. Hankemeier, Co-promotor: Theo Reijmers

Promotor: T. Hankemeier, Co-promotor: T.H. Reijmers

Low-carbon (LE) technologies have a significant potential to reduce the total carbon emissions in China.