522 search results for “sun and steen versie” in the Public website
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Colliding magnetic fields reveal unknown planets
Northern lights, stellar winds and exoplanets. This is what astronomer's PhD research revolved around. PhD candidate astronomer Rob Kavanagh developed mathematical models to better understand the interactions between exoplanets and stellar winds and to define features of exoplanets. He will receive…
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Investigating the impact of nanoparticles on the environment
On Tuesday 4 September, Martina Vijver delivered the scientific lecture during the academic opening of the Faculty of Science. Martina is professor in Ecotoxicology at CML and would like to have collaborations with colleagues from the Leiden Centre of Data Science. We had a brief interview with her.
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The hunt for an earth-like exoplanet
Astronomer Frans Snik searches for extraterrestrial life. He doesn’t so much look at stars as at the ‘exoplanets’ alongside them.
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No matter the weather: honours students explore the 'wilderness' in Wassenaar
With a combination of incidental sunshine, torrential rain, and wind chills, weather conditions were not ideal for a hiking excursion. Even so, last Saturday, honours students braved a trek across an estate and a golf club in Wassenaar to learn about the relationship between gardens and nature. From…
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Discovering new physics in extremely bright neutron stars
Astronomer Alexander Mushtukov, currently working at the University of Amsterdam, received a Veni grant of 250,000 euro’s which he will execute in Leiden. Supervised by Simon Portegies Zwart, Mushtukov will use advanced simulations to understand the unknown physics in extremely bright neutron stars.
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Online exhibition
TEXTS FROM ANCIENT EGYPT. Highlights from the Collection of the Leiden Papyrological Institute. Online exhibition on the occasion of the 80th anniversary of the foundation ‘Het Leids Papyrologisch Instituut’ in 2015.
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Alice Twemlow wins Simon Mari Pruys prize for design criticism
On Saturday November 16 Alice Twemlow was awarded the Simon Mari Pruys prize for design criticism for her essay ‘Conflicting Definitions of Key Terms’.
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Measuring the pull of gravity on a micron-sized particle
Tjerk Oosterkamp of the Leiden Institute of Physics managed to do the first-ever measurement of gravity on a tiny particle - just 0.43 milligrams - where the quantum regime starts. He explains in Physics World why this is so challenging.
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Book Review of Sofia Ranchordas’ scholarship in the American Journal of Comparative Law
The prestigious American Journal of Comparative Law (2016, pp. 790-4) just published a book review of Sofia Ranchordas monograph ‘Constitutional Sunsets and Experimental Legislation’ (Edward Elgar). The book is partially based on her PhD dissertation for which she was awarded a cum laude doctorate degree…
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Is the Netherlands a tax haven or not?
No, the Netherlands is not a tax haven, the new State Secretary for Tax Affairs Marnix van Rij said shortly after his introductory meeting with Dutch Prime Minister Rutte. Yet there are numerous reports that describe the Netherlands' role as a tax haven.
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Honorary doctorate for Canadian-American astrophysicist Sara Seager
Leiden University will confer an honorary doctorate on astrophysicist Sara Seager for her work on exoplanets.
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Spin-off from astronomy: measuring water pollution with your mobile
Leiden astronomers and ecologists are developing an instrument that lets people measure the quality of surface water with a smartphone.This international citizen science project, MONOCLE, is a collaboration between scientists and local people in Tanzania, Brazil and four European countries.
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Sustainability and energy: AI research in Leiden, Delft and Rotterdam
From energy transition to the nitrogen crisis: artificial intelligence can be of great help. Researchers from the three universities in Zuid-Holland are seizing the opportunity. Three of them talk about collaborative research in the AI for Energy and Sustainability focus group within the Zuid-Holland…
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Forum Essays
Forum essays provide a framework for intellectual exchange and debate about the role of diplomacy around a particular theme. The essays are argumentative contributions and are shorter than research articles.
- China's Diplomacy
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Light-activatable metallodrugs and metal-functionalized liposomes
Metal-containing molecules combine geometrical features and a reactivity that are inherently different from that of organic molecules. My research focuses on light-activatable metal-based anticancer drugs and metal-functionalized liposomes. Light is a very selective way to activate photosensitive drugs…
- Week 3: 21–27 January
- Humanities
- In Memoriam
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Governance and Global Affairs
Knowledge that benefits society is the domain of the Faculty of Governance and Global Affairs (FGGA). FGGA provides high-quality interdisciplinary education on and research into social and governance issues such as terrorism, organisation of public administration, climate change and economic crises.
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The House of Orange-Nassau and Colonial History
At the initiative and expense of His Royal Highness King Willem-Alexander, Leiden University will be conducting a study of the role of the House of Orange-Nassau in Dutch colonial history. The project will run from 2023 to 2026.
- Members (listed per university and category)
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2011 Leiden Centre for Global Heritage
A Centre for Global Heritage will be set up at Leiden University, that integrates the unique global breadth and quality of academic expertise at the University and the Leiden Museums with the global infrastructure of practical consultancy expertise built up over the past years by the Centre for International…
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Is extraction of raw materials in space allowed?
Asteroids, pieces of matter orbiting round the sun, have turned out to be extremely valuable. Asteroid Psyche contains a quantity of metals that together are worth more than the entire global economy. NASA is heading for it.
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Leiden Observatory comet research goes viral
From Mexico and Indonesia to China and Italy: people from all over the world read about the Leiden Observatory publication on the birthplace of comets. This research suggests that all comets in our solar system might come from the same place: a specific range in the flat disk of dust and gas that once…
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Celebrating the International Day of Light in the Old Observatory
On 16 May the first International Day of Light was celebrated all around the globe. Initiated by UNESCO, organisations in 87 different countries set up a total of more than 600 events to embrace the vital role of light and related technologies in science. In the Old Observatory in Leiden visitors could…
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Photo competition 'Summer in Leiden & The Hague' - take part!
Studying hard at one of our locations? Doing research in the lab? Or enjoying the sun at a friendly pavement café? Record your summer in Leiden and/or The Hague and see your photo on our Facebook page. Who knows, you may win the top prize!
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Celebrating the International Day of Light in the Old Observatory
On 16 May the first International Day of Light was celebrated all around the globe. Initiated by UNESCO, organisations in 87 different countries set up a total of more than 600 events to embrace the vital role of light and related technologies in science. In the Old Observatory in Leiden visitors could…
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Building molecules with sustainable energy
The E2CB programme has been launched to bring CO2 emissions to zero by 2050. The goal: to produce all raw materials for the chemical industry from sustainable sources. Professor of Electrochemistry Marc Koper is involved in the project.
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Leiden University College The Hague hosts and wins UCSRN Tournament 2019
Instead of feasting on one of the many Easter meals or enjoying the sun on Scheveningen Beach, a delegation of Leiden University College The Hague students spend last week on the preparations for hosting the UCSRN Sports Tournament. On a sunny Easter Monday, University College students from 8 different…
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What happens when two galaxies collide?
When galaxies collide, do the black holes at their centre form a supersized black hole? This is what we think happens, but it's not as simple as that, according to Simon Portegies Zwart. Zwart, computer scientist and astronomer, has been awarded a VICI grant to research this phenomenon.
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Publications
Below is a chronological list of the most recent to oldest publication from the MultiGreen project.
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Rapenburg - backdrop for art and knowledge
Street theatre, drama, poetry and a lot of science: Leiden's Rapenburg was the backdrop for the fifth Night of Art and Knowledge on Saturday 16 September. Many University buildings - from the Observatory to the Hortus - opened their doors to artists, scientists and a public curious to know more.
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Why Brainpower can hold his own against Harry Mulisch
In terms of the breadth of their vocabulary, many Dutch rappers can easily match leading authors. This is the surprising conclusion drawn by language researcher Alex Reuneker on the basis of comparative research. Rapper Brainpower and author Ilja Leonard Pfeiffer will debate this issue on 16 September…
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Students exhibit at interface between art and technology
Abstract sounds that draw visitors upstairs, an 'escape womb' and a Christmas game that gets you thinking about the limits of creating our own happiness. Master's students of Media Technology created a special exhibition on the theme of 'self', in the Old School art centre in the Pieterskerkhof in…
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Graduation ceremony of the Cyber Security master: A digital party
With a trip through the Netherlands, the preparations for the graduation of the Master Cyber Security had already started weeks ago. The apotheosis took place on Thursday, the 11th of February. A report of a digital graduation ceremony.
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Gorlaeus lecture halls: biggest solar panel roof in Leiden
The roof of the lecture halls at the Faculty of Science was fitted with solar panels in June, making it the biggest solar-panel-covered roof in Leiden.
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New and familiar faces at Dies for alumni
The Dies Natalis for alumni was held on Saturday 10 February, organised by the Leiden University Fund (LUF) together with the University. Almost 500 alumni came together in the Kamerlingh Onnes building to celebrate the 443rd anniversary of the foundation of their alma mater.
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‘I'm in awe of these refugee students’
Proud family members, lecturers and, above all, students congregated in the Van Steenis building on 27 June to celebrate the students' having completed the Preparatory Study Year in Leiden.
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Leiden University bids farewell to Mayor Lenferink
This week, Leiden University bade farewell to Henri Lenferink, who is retiring after 20 years as mayor of Leiden.
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Podcast series introduces you to the BSc Security Studies
With this podcast series 'Introduction to Security Studies', you will get to know more about the bachelor's programme Security Studies at Leiden University in The Hague and life as a student in The Hague.
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Finding the origin of giant black holes
‘Space Antenna LISA will open an unprecedented window on the Universe,’ says astronomer Elena Maria Rossi. The mission will be the first one to detect Gravitational Waves from space. These can tell us more about the beginning of our Universe and the formation of black holes. With an NWO grant of twelve…
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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…
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Gigantic ring system discovered around exoplanet J1407b
Astronomers from the Leiden Observatory and from the University of Rochester (in the US) have discovered that the planetary ring system that covered the very young sun-like star J1407 is actually of enormous proportions. In fact, it’s much larger and heavier than the ring system surrounding Saturn.…
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Archaeologists in action: stories from the field
During the summer, staff and students of the Faculty of Archaeology travel to all parts of the world, initiating or joining fieldwork projects. Read some of our students' stories here!
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Dutch National Student Orchestra: one big party
The Dutch National Student Orchestra will be going on tour again in February. Before that, they will have ten days of rehearsals. The level is high and taking part means a total immersion in music.
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The launch of a new era: Leiden and the James Webb telescope (Part I)
After 25 years, this December will finally see the launch of the long-awaited James Webb space telescope (JWST). Leiden astronomers are watching with great excitement: not only were they involved in the construction of important instruments on board, but the telescope will also reveal many new secrets…
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Stunning James Webb images show birth and death of massive stars
The James Webb Space Telescope continues to surprise us with stunning pictures, but of what exactly? Astronomer Nienke van der Marel shows with three images how massive stars lead short but explosive lives.
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Young Star Renske Donkers: how is she doing now?
How is Young Star Renske Donkers doing now? Early this year she was the second person ever to win the Young Star Award for the best bachelor student. After her bachelor Molecular Science & Technology, Renske is now busy with her master Chemical Process Engineering in Delft. ‘This award was a great boost…
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Spinoza Prize for astrophysicist Ignas Snellen
With his clever measuring methods Ignas Snellen – together with his team – was the first to detect carbon monoxide in the atmosphere of exoplanets. For his pioneering work the Leiden astrophysicist has been awarded the Spinoza Prize, the highest academic honour in the Netherlands. The prize of 2.5 million…