447 search results for “spontaneous emission” in the Public website
The Birth of Political Mass Parties
How did parties as political organizations emerge?
Quantum to Classical
In Quantum mechanics, particles can be in multiple positions simultaneously. Yet, when a measurement is made, the particle is found only in one place. Technology has come to a point where we may design experiments that will tell us how.
Colloidal LEGO with peptides
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'Better to take action today, than to deal with the damage tomorrow'
It’s better to cut our nitrogen emissions now than to solve the consequences later at great expense. That’s the lesson we can learn from the Dutch nitrogen crisis, according to nitrogen expert Jan Willem Erisman. In Science, he shares this lesson with other countries. According to Erisman, we should…
The aim of ANCIENT CHARM was to develop neutron-imaging techniques and the associated equipment, and help establish neutron imaging as a mainstream archaeological analytical technique. In particular, one of the goals was a new imaging technique which called neutron resonant capture imaging combined…
Hydrogen: Production and Storage of Hydrogen
The Hydrogen network brings together leading researchers from different disciplines and sectors with a combined expertise that maximises the chance of achieving scientific breakthroughs in production and storage of hydrogen, while guaranteeing the successful training of a new generation of scientists…
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.
Upper Limit Found for Quantum World
The small quantum world and our world of perception obey different laws of nature. Leiden physicists search for the border between both worlds. In an article published soon in Physical Review Letters they set an upper limit.
LOFAR pioneers new way to study exoplanet environments
Using the Dutch-led Low Frequency Array (LOFAR) radio telescope, astronomers have discovered unusual radio waves coming from the nearby red dwarf star GJ1151. The radio waves bear the tell-tale signature of aurorae caused by an interaction between a star and its planet. The radio emission from a star-planet…
How to share responsibility for polluting the atmosphere?
In our globalised economy, goods and services are frequently produced abroad. Is it the producer or the consumer that should be held responsible for greenhouse gas emissions associated with production? Together with colleagues from Berlin, Hauke Ward of the Institute of Environmental Sciences (CML)…
Sustainable Tuesday: 4 questions for environmental scientist Ranran Wang
On Sustainable Tuesday, two weeks before Dutch Budget Day, the Dutch cabinet receives a suitcase full of sustainable ideas and initiatives. The initiators' aim: to make the government plans for the upcoming year a little more sustainable. At the Leiden Institute of Environmental Sciences (CML), assistant…
The transition to new and renewable energy sources should be completed by 2050. Researchers in various disciplines at Leiden University are conducting unique research that will help us make this transition and reduce CO2 emissions.
Vidi grant awarded to Nadia Soudzilovskaia (CML)
On 11 May 2016 a prestigious NWO Vidi grant (NWO's Innovation Research Incentives scheme) has been awarded to Nadia Soudzilovskaia for her research proposal entitled “Do mycorrhizal fungi mediate soil carbon fate?”, aimed to understand mycorrhizal impact on soil carbon sequestration.
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.
Nitrogen crisis: Rapid, effective intervention in three specific regions could create breathing space
The new Dutch government must act quickly to take rapid, far-reaching measures in three specific regions to tackle nitrogen emissions. This will create the space for a long-term strategy to deal with other urgent problems and the knot of obligations that the state will need to untangle. These are the…
Recommended weighting methods
The project falls in the context of the EU Thematic Strategy on the Sustainable Use of Natural Resources (COM(2005)670). The Institute for Environment and Resources (IES) of the Joint Research Centre (JRC) has developed three sets of decoupling indicators. Such indicators require the definition of a…
Policy Review on Decoupling
Development of indicators to assess decoupling of economic development and environmental pressure in the EU-25 and AC-3 countries.
Procurement and investments
Leiden University purchases a broad range of goods and services every year, from scientific equipment to office supplies and from cleaning services to food products sold in the University's restaurants. All these items have an environmental impact, resulting from their production, the use of raw materials…
A new window on the Universe
Impacts of the use of Natural Resources and Products
Development of an aggregated impact indicator to measure decoupling.
Perfect for designing new molecules
Even a small quantum computer should be able to simulate exactly the properties and behaviour of new molecules. This would take chemistry to an entirely new level. Better solar panels, more powerful batteries, saving lots of energy in the chemical industry: the applications have the potential to transform…
Examining the sustainability aspects of biotechnology, especially those related to the production of ethanol from biomass.
Footprint family: Concepts, classification, integration, and benchmarking against planetary boundaries
How to bring together different footprints into an integrated family and what are the synergies? What are the roles of inventory analysis and characterization in measuring individual footprints and how these affect a footprint family? How to benchmark environmental footprints against related planetary…
Clean diesel and dirty scandal: The echo of Volkswagen’s dieselgate in an intra-industry setting
In 2015 the U.S. Environmental Protection Agency revealed that German car manufacturer Volkswagen had illegally installed software to produce fake NOx-emissions results. This study aims to analyze how the German news media framed VW’s role.
Vision on sustainability 2030
Leiden University is aware of its role in society and wants to create a green, healthy and inclusive campus and have a positive impact on the field of climate and circularity. Our Sustainability Vision 2030 is the starting point for a new implementation programme with goals and activities for the period…
Ecosia now available at Leiden University computers
LUGO has some news: If you are using a public computer from Leiden University, you can now set your default search engine to Ecosia.
Team from Leiden wins the Rotterdam100 with plan for more environmental-friendly ships
Capture the emissions of ships and use it to cultivate algae, which you can then use to make biofuels. This was the idea that won the team from Leiden, led by Public Administration student Hein Laterveer, the Rotterdam100 competition.
Law student Aoife Fleming speaks at UN Climate Change Conference Madrid
As UN Youth Delegate on Sustainable Development, Leiden student Aoife Fleming is currently in Madrid for the UN Climate Change Conference COP25.
Astronomers see gigantic collisions of galaxy clusters in young universe
An international team of researchers led by Leiden University (the Netherlands) has mapped nine gigantic collisions of galaxy clusters. The collisions took place seven billion years ago and could be observed because they accelerate particles to high speeds. It is the first time that collisions of such…
Environmental benefits in transport sector often disappointing
Eco-innovations like more economical cars do not generate the environmental benefits predicted by the manufacturers. This is the result of the so-called rebound effect, concludes Leiden industrial ecologist David Font Vivanco on the basis of new algorithms. PhD defence 3 March.
Europe is the only continent living at the expense of others
Europe can only maintain its level of consumption by structurally relying on resources extracted abroad. This finding was published in the September issue of the prestigious journal Global Environmental Change, in a paper that was co-written by scientists at Leiden University.
Supercurrents gone chiral: new type of superconducting junction
Unconventional superconductors form one of the big mysteries in physics. Among them is strontium ruthenate, which stands out as a controversial superconductor. During his PhD, Leiden physicist Kaveh Lahabi has provided new insights into the nature of superconductivity in this material, leading to a…
Joan van der Waals colloquium
The Joan Van der Waals colloquium is an ongoing bi-weekly lecture series.
UN calls for urgent rethink as resource use skyrockets
The International Resource Panel of the United Nations Environment Programme, with CML researcher Ester van der Voet as member, has prepared a report called Global Resources Outlook 2019: Natural Resources for the Future We Want. It examines the trends in natural resources and their corresponding consumption…
National Meat Free Week: the main reasons to switch to a plant-based diet
National Meat Free Week (Nationale Week Zonder Vlees, 7–13 March) is an initiative to reduce meat consumption. Assistant professor Paul Behrens is studying what impact a change in our food consumption would have on the world. What, according to him, are the main reasons to switch to a (mainly) plant-based…
Why the WTO ban on China’s export duties should be ‘greened’
China is prohibited from using export duties to address any environmental problems. This is unfortunate, according to PhD candidate Fengan Jiang (Richard), as export duties could be useful in tackling global carbon leakage. PhD defence on 19 February 2020.
Robots and burial mounds
Neural networks have a wide range of applications. In Leiden, psychologists use them to build robot brains, whereas archaeologists use them to hunt for prehistoric graves.
The research of the Van Eck Group focusses on 3 interconnected research lines: 1) Identification and therapeutic targeting of key pathways/regulators in macrophages essential for prevention of atherosclerotic lesion development or stimulation of regression of existing lesions, 2) Atherosclerosis as…
Selected publications of the Cardiovascular and Metabolic Therapeutics group.
Retrieving the Past Glory: Social Memory, Transnational Networks and Christianity in Contemporary China
To address the relevance of Christianity to the ideological negotiations with the officially established authority, this research will be conducted by asking how the history enthusiasts negotiate the Christianity-related ideology through reconstructing the Christian past and reproducing religious histories…
- The emerging sign language of Guinea-Bissau (LGG)
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