Promotors: Prof.dr. G.R. de Snoo, Prof.dr. G.A. Persoon, Prof.dr.ir. H.H. de Iongh

Promotor: Prof.dr. E Gittenberger, Co-Promotores: C.H.J.M. Fransen, B.W. Hoeksema

Promotor: Prof.dr. P.G.L Klinkhamer, Co-promotor: K. Vrieling

In his dissertation Michiel Hooykaas outlines the results of six empirical research projects focused at biodiversity awareness in the Netherlands, specifically people’s knowledge about animals.

Een internationaal team met onderzoekers uit Leiden heeft ontdekt hoe een bacterie een intern systeem heeft herschikt om grip op beweging te krijgen. Gecontroleerde beweging is heel belangrijk bij het binnendringen van een gastheer, met mogelijk ziekte tot gevolg. Publicatie op 27 april in Nature Co…

Evolution acts via mutations in amino acid sequences. Substitution of essential amino acids leads to a nonfunctional protein. l.

Wiskunde en Natuurwetenschappen, Instituut Biologie Leiden (IBL)

Promotor: E. Gittenberger, Co-promotores: L.P. van Ofwegen; B.W. Hoeksema

Wiskunde en Natuurwetenschappen, Instituut Biologie Leiden (IBL)

Does roadside management in the mid-west USA increase invertebrate diversity similar to practices in Europe?

Promotor: M.T.M. Koper, Co-promotor: L. Juurlink

The origin and evolution of galaxies are closely linked to many different physical phenomena.

Promotor: J.A. van Veen, Co-promotor: E.E. Kuramae

We developed the bitterling as a unique, well-studied model organism in the area of the evolutionary ecology of brood parasitism. The bitterling-mussel relationship, interspecific mussel host preference, and mussel gill structure are studied in detail, to help understand the developmental adaptation…

1: What is the relative importance of alfa and beta biodiversity in polar ecosystems, and how does intraspecific variation influence this? 2: How can we use remote sensing to determine functional biodiversity (within communities) in polar ecosystems? 3: Temporal and spatial scales of functional biodiversity:…

Galaxies in the Universe are distributed along the intricate framework of the Cosmic Web. Groups and clusters of galaxies comprise the densest regions in this network, and therefore, are excellent cosmic laboratories to study different aspects of galaxy evolution in extreme environments.

Plant diversity is essential for us and our planet as it sustains the stability of our ecosystems, provides vital materials and food to us and supports many ecosystem services.

The application of nanomaterials in industrial processes and consumer products provides many societal benefits, but can also lead to the release of nanomaterials into the environment. The work in this dissertation aims to provide insights into the potential environmental impacts that may follow from…

Galaxies are environments where gas coalesces, cools, and is converted into stars. However, it remains unclear the exact mechanisms through which galaxies acquire, redistribute and lose their gas.

What invertebrates live in the fields and edges? Do the populations change with landscape complexity?

What invertebrates are available to feed nestlings in an agricultural landscape of varied complexity?

Evolutie is elke dag om je heen. Dat is de boodschap van de nieuwe Massive Open Online Course (MOOC) van de Universiteit Leiden en Naturalis die 19 september van start gaat.

Promotor: Prof.dr. M.T.M. Koper, Co-Promotor: F. Calle-Vallejo

Promotores: Prof.dr. J. Schaye & Prof.dr. C. Steidel (California Institute of Technology)

This thesis pioneers diatom molecular identification and quantification through genome-scale methods, with four key aims: (i) reviewing DNA/RNA sequencing methods in aquatic biomonitoring to highlight their strengths and limitations;

Promotor: Prof.dr. E.F. Smets, Co-Promotor: L.W. Chatrou

Promotor: E. Gittenberger, Co-promotores: B.W. Hoeksema; L.P. van Ofwegen

Radio jets are important to the evoultion of galaxies. However, it is still not fully understood how a radio jet can be triggered.

Biodiversity enables ecosystems to thrive through the synergy of functional differences among organisms. While human well-being strongly depends on biodiversity-driven ecosystem services, human actions are also at the root of current unprecedented biodiversity declines.

Promotor: E. Gittenberger, Co-promotor: B.W. Hoeksema

Understanding how galaxies form, interact, and evolve comes largely from comparing theory predictions with observational data. Numerical simulations of galaxies provide the most accurate approach to testing the theory, as they follow the non-linear evolution of gas and dark matter in great detail and…

This dissertation studies the Asymptotics of Bayesian nonparametric inference for Gaussian linear models.

In this dissertation iron-based homogeneous catalysts were synthesized, characterized and investigated for water oxidation activity.

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.

Dr.ir. Willie Peijnenburg is per 1 september 2009 bij de Faculteit der Wiskunde en Natuurwetenschappen benoemd tot bijzonder hoogleraar Environmental Toxicology and Biodiversity. Het betreft een deeltijdaanstelling. Peijnenburg blijft daarnaast werkzaam bij het Laboratorium voor Ecologische Risico-beoordeling…

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.

Promotores: Prof.dr. E.F. van Dishoeck, Prof.dr. C.P. Dullemond

This thesis aims to address offshore wind energy (OWE)-related environmental impacts.

To design the ideal water oxidation catalyst, understanding of the catalytic mechanism and decomposition pathways is essential.

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…

Promotor: M. Franx, Co-Promotor: I.F. Labbé

Ariane Briegel, hoogleraar Ultrastructuurbiologie in Leiden, heeft een prestigieuze beurs ontvangen van de Gordon and Betty Moore Foundation. Met de toekenning van 800.000 euro zet Briegel een nieuwe onderzoekslijn op om symbiotische interacties op nanoschaal te bestuderen.

Promotor: M.K. Richardson, Co-Promotor: F. Witte

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.

Promotor: G.R. de Snoo Co-promotor: C.J.M. Musters

Promotor: Prof.dr. M. Franx, Co-Promotor: Rychard Bouwens

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.