922 search results for “galaxy evolution” in the Public website
-
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.
-
Weathering the Ice Age
Where did species survive the cold cycles of the current Ice Age?
-
Fundamental research on the voltammetry of polycrystalline gold
Voltammetry plays a crucial role in modern scientific research by offering valuable insights into the electrochemical properties of materials, with wide-ranging applications in fields such as materials science, energy storage, corrosion studies, and sensor development.
-
Polar auxin transport: translating environmental signals into plant developmental responses
1. What is the exact role of PIN proteins in PAT? 2. How is PIN polarity established, and how is it modulated by AGC kinase-mediated phosphorylation? 3. What is the role of the AGC kinase, as modulators of PAT, in translating environmental signals, such as gravity, light or mechanical stress, to plant…
-
Unravelling the genes responsible for life history traits in the giant woody cabbage (Brassica oleracea)
Which genes are involved in woodiness and associated traits such as drought tolerance, flowering time, stem elongation, life span, and plant herbivory, and how do these gene regulatory pathways overlap?
-
Chemistry between stars and planets
In the large gas clouds between the stars, chemical reactions take place under extreme conditions, giving rise to both small molecules, such as water and common salt, as well as large complex molecules that can serve as the building blocks of life. This is known as astrochemistry and it is something…
-
The complicated conservation problem of genetic pollution
How does invasive hybridization affect threatened native species?
- Leiden Observatory
-
Testing gravity on the largest scales with kids and friends
What are the 'dark' components of the universe?
-
Arie Verhagen
Faculty of Humanities
a.verhagen@hum.leidenuniv.nl | +31 71 527 4152
-
Guillermo Guerrero Egido
Science
g.guerrero.egido@biology.leidenuniv.nl | +31 71 527 4791
-
Merijn de Bakker
Science
m.a.g.de.bakker@biology.leidenuniv.nl | +31 71 527 5043
-
Lennart Schada von Borzyskowski
Science
l.schada.von.borzyskowski@biology.leidenuniv.nl | +31 71 527 4278
-
Manon de Visser
Science
m.c.de.visser@biology.leidenuniv.nl | +31 71 527 4882
-
Sebastian Fajardo Bernal
Science
s.d.fajardo.bernal@liacs.leidenuniv.nl | +31 71 527 2727
-
Bernhard Brandl
Science
brandl@strw.leidenuniv.nl | +31 71 527 5830
-
Dynamics of a β-lactamase
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.
-
A PCAD-model for fish to study the impact of airgun sound exposure on free-ranging cod
We are developing the conceptual framework, which is new to this taxonomic group, and evaluate the current state of the art with respect to all critical parameters and transfer functions for a fully developed Population Consequences of Acoustic Disturbance (PCAD) model.
-
What Spinoza winners Ellemers, Sluiter and Franx will do with €2.5 million
On Monday 27 September 2010 Spinoza prize winners Naomi Ellemers, Ineke Sluiter, Marijn Franx (Leiden) and Piet Gros (Utrecht) announced their plans for their €2.5 million prize money. This was during the official ceremony in The Hague, at which the outgoing Secretary of State for Education, Culture…
-
Mariska Kriek is back – but this time as a professor
She left Leiden after her PhD and now, 14 years later, she returns as Professor of Extragalactic Astronomy. Mariska Kriek investigates how galaxies originate and evolve. And she is eagerly awaiting the launch for the new James Webb telescope: ‘The coolest things we are going to find are those we’re…
-
Dutch-Japanese astronomic instrument measures 49 shades of far infrared
The Dutch-Japanese made DESHIMA instrument has passed its first practical tests when measuring the distances and ages of distant galaxies. The core of the instrument is a chip the size of two euro coins that measures 49 shades of far infrared light. The developers of the spectrometer publish the results…
-
Stellar radio beacons for Galactic astrometry
A century ago, it was unclear whether the stars in the sky were clustered in groups, or widely spread in the universe.
-
Winds in the AGN environment: new perspectives from high-resolution X-ray spectroscopy
Promotor: J.S. Kaastra Co-promotor: E. Constantini
-
Collaborating bacteria sacrifice themselves for the greater good
Like ants, termites and bees, some bacteria work together as a multicellular group. There is a strict division of labour in such colonies, to make the group more resilient to the outside world. Now researchers have found that some parts of the bacterial colony can take ‘for the greater good’ to a whole…
-
Ten thousand types of plant outgrowths bundled
For nine years he worked on the three-volume standard work Plant Galls of Europe. It yielded 2300 pages about 10,000 species of European galls, abnormal outgrowths in plants caused by parasites. Hans Roskam from the Institute of Biology Leiden: ‘The abundance of galls says something about the natural…
-
Environmental and genetic drivers of wood and lignin formation in flowering plants
In this project, we will study the genetic and environmental drivers of woodiness and stem lignification at the level of plant‐to‐gene‐to‐molecule.
-
Noise pollution affects marine life worldwide
Man-made sounds in and around the oceans stress marine life and have an impact on marine species and ecosystems by changing the underwater acoustic climate. Hans Slabbekoorn from the Institute of Biology Leiden pleads for technical solutions to mitigate problems of noise pollution. Science review paper…
-
Hybrid zones: a quick guide by Ben Wielstra
Ben Wielstra studies hybrid zones, regions in which distinct populations of organisms meet, mate and produce genetically admixed offspring. In the journal Current Biology, he introduces hybrid zones in an accessible way.
-
Group benefits from genomic instability: a tale of antibiotic warriors in Streptomyces
Streptomyces are filamentous bacteria that produce more than two-thirds of known antibiotics.
-
Silva Nova – Restoring soil biology and soil functions to gain multiple benefits in new forests
We will study how inoculation of former arable land with soil (including the microbiome, soil fauna and seeds/rhizomes of ground flora) from old forests along with planting targeted tree species mixtures will improve productivity and more rapidly restore forest-adapted communities and ulttimately result…
-
Exploring future multi-messenger Galactic astronomy
For centuries astronomers studied the Universe by collecting light. Nowadays, we are living in times of great technological advancements, which allow us to explore our Universe in a new way - though gravitational wave radiation.
-
Interstellar Catalysts and the PAH universe
Organic molecules in interstellar space are important as they influence the structure of galaxies and star formations. Studying catalytic processes in space allows us to understand how molecular species are formed and chemically evolved in the interstellar medium and solar system objects.
-
Exploring the magnetic, turbulent Milky Way through radio waves
Promotor: Prof.dr. H. J. A. Röttgering, Co-Promotor: Dr. M. Haverkorn
-
IBL-research interview: Daniel Rozen
Daniel Rozen (45), at the IBL since September 2012, uses bacteria in laboratory tests on experimental evolution to study the ecology and genetics of adaptation. His research has applied importance, as it reveals how bacteria may be induced to produce new antibiotics. Last January, Rozen received the…
-
From midplane to planets : the chemical fingerprint of a disk
This thesis addresses the chemical processes that determine the compositions of giant planet atmospheres.
-
Balanced lethal systems: a quick guide by Ben Wielstra
Ben Wielstra studies balanced lethal systems, in which half of the offspring die before birth. In the journal Current Biology, he explains in an accessible way how such a disadvantage can originate in nature.
-
Lecture Niko Tinbergen, Sunday 20 September
In honor of Nobel laureate ethologist Niko Tinbergen, the Leiden University in collaboration with the NRC Handelsblad, NWO, and Naturalis Museum Boerhaave organizes the annual Tinbergen Lecture.
-
Awards and Grants 2018
An overview of awards and prizes granted to our staff and students in 2018, as well as special appointments and royal distinctions.
-
Two Leiden astronomers awarded with prestigious IAU PhD Prize
Two Leiden astronomers will receive the prestigious IAU PhD Prize. Both Jorryt Mathee and Niels Ligterink of the Leiden Observatory won a prize. Scientific director Huub Röttgering: We are proud that this year two of our PhD students receive an IAU prize for the best thesis in their field of researc…
-
Newton-telescope finds missing intergalactic material
Astronomers from, among others, SRON and Leiden Observatory have discovered long-sought intergalactic gas with ESA’s space telescope XMM-Newton. This gas is one of the pieces of the puzzle to map the total amount of ‘normal’ matter in the universe. The research will be published in Nature on 21 June…
-
Netherlands (WIIS-NL) Inaugural Event: 1325 twenty years on – the evolution of the WPS agenda after 9/11
On Thursday 11 November, Women in International Security Netherlands (WIIS-NL) held its inaugural webinar event on 11 November with four speakers in conjunction with the International Centre for Terrorism (ICCT) and the Chair UN Studies in Peace and Justice at Leiden University.
-
Animal Sciences
We perform multidisciplinary research at molecular, cellular, and organismal levels of animal biology to increase fundamental understanding of health and disease.
-
Hans Slabbekoorn receives NWA grant to study fish around wind farms in the North Sea
The Dutch Research Council (NWO) awarded behavioural biologist Hans Slabbekoorn (Institute of Biology Leiden) a grant of 750,000 euros to study fish and sounds around wind farms in the North Sea.
-
Substrate adaptability of β-lactamase
The research aims to explore the evolutionary adaptability of enzymes and the impact of temperature on protein evolution pathways, using M. tuberculosis β-lactamase BlaC as the object of study. Enzymes inherently embody a delicate balance between activity and stability, and the acquisition of new enzymatic…
-
The Great Collapse
Promotor: Prof.dr. S.F. Portegies Zwart
-
New detection method for quasars in the early Universe
Astronomers from Leiden Observatory have developed a new method to find distant quasars and better distinguish them from other objects that look like them, using machine learning techniques. The research result has been accepted for publication in the journal Astronomy & Astrophysics. It is the last…
-
A much sharper picture of the universe with new algorithms and supercomputers
With new algorithms and supercomputers, an incredibly detailed radio map of the universe was created. Now astronomers can look at radio data of galaxies with much more precision. This was published in Nature Astronomy by Leiden PhD student Frits Sweijen and colleagues.
-
Simulating the birth environment of circumstellar discs
Circumstellar discs are the reservoirs of gas and dust that surround young stars and have the potential to become planetary systems.
-
Isotopes and the characterization of extrasolar planets
Diverse types of exoplanets such as gas giants on close-in orbits (hot Jupiters) and young massive giants on wide orbits (super Jupiters), with no analogs in the Solar System, pose challenges but also opportunities to our understanding of planet formation and evolution.
-
Leiden discoveries
From the Big Bang to superconductivity. Many ground-breaking discoveries have been made in Leiden University’s long history.