458 search results for “spontaneous emission” in the Public website
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Blinded by the light - the difficulty of addressing environmental problems even after solutions are found
Lecture
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The recent IPCC report: some reactions from our Liveable planet community
The publication of the recent IPCC report on climate change has not gone unnoticed, to put it mildly, certainly not within the Liveable Planet community.
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Older Publications
Overview of the publications of the department of Industrial Ecology (1982-2015)
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Dissertations
Overview of all dissertations published by PhD candidates from CML.
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Joan van der Waals colloquium
Lecture
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What do PAHs do in space?
Xander Tielens, Professor of Physics and Chemistry of the Interstellar Space, has been awarded an ERC Advanced Grant to study polycyclic aromatic hydrocarbons (PAHs) in space. The combination of astronomical observations, computer models and lab research makes the research highly interdisciplinary.
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Liveable Planet
Crises like climate change and loss of biodiversity threaten our planet. That’s why sustainability is an important topic in research and education across Leiden University. On this website you read how scientists from many disciplines work together in researching sustainability.
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Municipalities as testing grounds in sustainability
Researching as a student how you can make your own student house free of natural gas. That is now possible because of a new collaboration between Leiden University and the municipality of Leiden and The Hague.
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How to set ambitious goals for sustainable agriculture
Food production in the Netherlands is an economic success but has led to many environmental issues, including nitrogen pollution. Recently, the policy to allow economic growth while reducing nitrogen losses was disapproved by the highest court in the Netherlands, casting the country into a nitrogen…
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Astronomers map the cosmic spider web
An international team of astronomers from Leiden Observatory and others, has for the first time mapped a piece of the dark, cosmic web. The research strengthens the hypothesis that the young universe consisted of huge numbers of small groups of newly formed stars. The astronomers publish their findings…
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A 36-ditch effort
An Institute of Environmental Sciences, ambitious goals for energy, water and CO2 emissions. Leiden University plans to take the lead on sustainability - in research, teaching and raising awareness.
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How sustainable is Leiden University?
How does Leiden University save energy? Could we organise our recycling better? Do our study programmes devote sufficient attention to the importance of sustainability? And how do we address this theme in our research? These and other questions are answered in Leiden University’s Sustainability Report…
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Astronomers publish map showing 25,000 supermassive black holes
An international team of astronomers has published a map of the sky showing over 25,000 supermassive black holes. The map, to be published in the journal Astronomy & Astrophysics, is the most detailed celestial map in the field of so-called low radio frequencies. The astronomers, including Leiden astronomers,…
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Students make recommendations for more sustainable university
Leiden University is working on sustainability and should give its efforts more publicity. This is the conclusion of Industrial Ecology master’s students who investigated the extent to which Leiden University is green and sustainable.
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The parallels between quarrelling animals and humans
The journal Philosophical Transactions of the Royal Society – Biological Sciences published its theme issue ‘Conflict across taxa’ on 4 April, which was edited by Professor of Social and Organisational Psychology Carsten de Dreu. Together with researchers from other disciplines he provides more insight…
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Looking back: New Year’s Event 2021, a year of sustainability and perspective
A live online New Year’s event on Tuesday 12 January marked the start of the New Year. Dean Joanne van der Leun toasted 2021 and as usual at this event, the annual Meijers prizes and thesis prizes were awarded.
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Circular economy essential to keep the earth turning
A circular economy in which all resources are reused is a prerequisite for a sustainable world. As EU president, the Netherlands can give a firm impetus to this economic shift. This is the message of Leiden Professor of Industrial Ecology, Arnold Tukker, in his inaugural lecture on 26 February.
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Astronomers destroy former record for most distant galaxy
An international team of astronomers that includes researchers from Leiden has discovered the most distant galaxy yet. The galaxy, called EGS8p7, is 13.23 billion light years away from Earth and already existed when the universe was only 550 million years old.
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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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Living Lab moves: first new ditches dug
Leiden University’s Living Lab is moving to the middle of the Leiden Bio Science Park. In the lab’s new home between the University of Applied Sciences, Mentor and Naturalis Biodiversity Center, the first ditches have now been dug. This new location is more accessible to both researchers and the public.…
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Promising test in Peru: tackling climate change whilst reducing poverty
What if we start taxing carbon-intensive products such as electricity and gasoline, and at the same time compensate low-income households? Hauke Ward and colleagues did just that in a computer simulation for Peru, with a remarkable outcome. Not only does the approach tackle climate change, but it could…
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Paul Behrens’ book on climate change launched in the US
The book ‘The Best of Times, The Worst of Times: Futures from the Frontiers of Climate Science’ by Paul Behrens has been launched in the US, a year after its original release in Europe. In his book, Behrens describes both hopeful and pessimistic scenarios for our planet.
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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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Saving the environment by banning plastic bags?
What is the influence of the 2016 ban on free plastic bags on the environment? Industrial ecologist Stefano Cucurachi received a LUF grant of €75.000 to answer this question.
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Ester van der Voet appointed professor of Sustainable Resource Use
The energy transition is already a huge challenge for society, but sustainable use of resources is even more complicated. Yet it is at least as urgent. Ester van der Voet has been working on it for decades, for example within the United Nations. Since February, she is a professor at the Centre for Environmental…
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Habitats of freshwater fish species are threatened by global warming
The habitats of freshwater fish species are threatened by global warming, mainly due to rising water temperatures. This is the conclusion of a study led by Radboud University, in collaboration with Utrecht University, PBL Netherlands Environmental Assessment Agency, Leiden University and others. The…
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‘Investment risk is holding back energy transition’
The present market regulations make it extremely risky to invest in green energy, and this is impeding the fight against climate change. This is what Oscar Kraan writes in his dissertation. PhD defence on 25 April.
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Physicists image individual molecules by watching them absorb light
Molecules are extremely hard to see in visible light, especially without using fluorescence. Leiden physicists have now made their optical technique sensitive enough to image the molecules of their interest in all sizes. Publication in Nanoletters.
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What to do with the fruit residue from oil palm seeds: refine it into bio-ethanol or use it as fertilizer?
When oil is harvested from the seeds of the oil palm tree, the fruit residue can be used to make bio-ethanol. However, it can also be used as a fertilizer on palm tree plantations; which option is best for the environment? Edi Wiloso compared the two green options at the Institute of Environmental Sciences…
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Black holes like to eat, but have a variety of table manners
All supermassive black holes in the centres of galaxies appear to have periods when they swallow matter from their close surroundings. But that is about as far as the similarities go. That's the conclusion reached by British and Dutch astronomers from their research with ultra-sensitive radio telescopes…
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Converting CO2 to store renewable energy
Yuvraj Birdja converted CO2 to formic acid to store energy in a sustainable way, with different catalysts. With this new knowledge, scientists are a step closer in industrially converting CO2 to chemicals and fuels. This can help reduce CO2 emission and the greenhouse effect.
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Family of footprints gives more complete picture of environmental damage
The world abounds with different footprints that calculate human impact on the environment. Environmental specialist Kai Fang is the first person to have developed a family of footprints that allow better measurement of environmental damage and the depletion of natural sources. PhD defence on 24 Nov…
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Orbiting black holes explained with super computer
Two black holes, in close orbit around each other. Have they slowly drifted together, or did they emerge from two orbiting stars? Together with to colleagues form Amsterdam, Leiden astronomer Simon Portegies Zwart calculated that the second scenario is rather likely.
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How a global carbon price would weaken Eastern European and Asian economies
Although seen as the fastest and cheapest way to global climate protection, a uniform global carbon price would have major consequences for the economic competitiveness of countries. Hauke Ward, who recently joined Leiden University, showed in the journal Energy Economics that modern western countries…
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Leiden research project on circular electronics receives 3.8 million euros from NWO
Fewer CO2 emissions, less airborne viral transmission, and a more sustainable form of food production: seven consortia of researchers and societal partners will put a budget of 32 million euros towards developing technological innovations. Important Leiden research on circular electronics by Prof. Dr.…
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LIBC Colloquium
Lecture
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This Week's Discoveries | 25 February 2020
Lecture
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Liveable planet lunch meeting - China and global climate change
Lecture
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Paul Christiaan Flu: a Surinamese professor in a time of war
Paul Christiaan Flu, originally from Surinam, was a brilliant tropical doctor, who in 1938 rose to the position of Rector Magnificus of Leiden University. The war years brought his lightning career to an abrupt end: his son was murdered and he himself was imprisoned in a concentration camp. A sad family…
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The impacts and challenges of water use of electric power production in China
PhD Defence
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Finding the cause of memory loss
Memory loss and confusion are signs of Alzheimer’s disease. Physicists Serge Rombouts and Martina Huber have developed new methods to help medical science get to the bottom of this insidious disease.
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‘SRON and South-Holland can reinforce each other well’
SRON Netherlands Institute for Space Research is moving. In 2021, the Utrecht branch will settle in South-Holland. Pieter Dieleman is group leader at SRON. He tells why the upcoming move is such a good idea: ‘SRON is a connecting factor between Delft and Leiden.’
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Young children associate Black Pete more with clowns than with black people
Older children more frequently link Black Pete with a black person. Both younger and older children think positively about him. This is the conclusion of a study conducted by Judi Mesman, Professor of Diversity in Parenting and Development.
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NKI-AVL and LUMC are joining forces in immunotherapy
Strengthening a cancer patient's own immune system so that the body itself can better destroy cancer cells. This is at the heart of immunotherapy, the most promising progress in cancer treatment in recent years. In order to drive this development further, the Netherlands Cancer Institute-Antoni van…
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Five History projects selected for Research Traineeship Programme 2016-2017
Five research projects of the Institute for History have been selected for the Research Traineeship Programme 2016-2017. The programme was initiated by The Faculty of Humanities to offer motivated students the opportunity to develop themselves in academic research. In December the research trainees,…
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Back to university: ‘A bit apprehensive but mostly pleased’
After almost 18 months of following lectures alone in their rooms, many students are going back to face-to-face classes for the first time. And the same is true for the lecturers. How do people feel about it? We went to Leiden Law School to find out. ‘For a whole year, I’ve been watching lectures in…
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Best Spanish doctoral thesis in Soil science in 2015 for CML researcher Daniel Arenas Lago
The Spanish Society of Soil Science has chosen as the best thesis of 2015 (call 2016) in Spain to the CML-researcher Daniel Arenas Lago, for his research at the University of Vigo that expands and deepens in new knowledge about adsorption and retention of heavy metals in soils, an issue increasingly…
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Vera de Regt wins Photo Contest Antropology 2016
Bachelor student Vera de Regt received the first prize in the Anthropology Photo Contest 'Street Life' with her photo 'Girlpower in USA river' of Tanzanian boys ánd girls passionately playing football together. On the festive award ceremony at the Faculty of Social and Behavioural Sciences, after a…
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The Leiden Connection - screenwriter Gerard Soeteman looks back
Gerard Soeteman (1936) created a furore as a screenwriter of films that became classics (Dutch films: Turks Fruit, Soldaat van Oranje, de Aanslag), but personally he is much more attached to his critical documentaries for television. He studied Dutch in Leiden. How did that help him?
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HOPping in The Hague: introduction week for students in The Hague
Kitesurfing, colonising the Binnenhof and most important of all - meeting fellow students. More then 700 students of Leiden University in The Hague get to know the city and one another during the HOPweek.