2,119 search results for “rianne werkt in rianne environmental” in the Public website
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Flu stops when you block the enzyme that cleaves off virus particles
A flu virus could cause a pandemic. And then we would be poorly armed because flu viruses are starting to become resistant to flu medications like Tamiflu. Chemist Merijn Vriends successfully worked on an improved version of such medications. He will be awarded his doctorate on September 12th.
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How bittersweet sugar chemistry targets pathogens
The challenge is considerable, but so is the satisfaction when it succeeds: creating complex sugar molecules that play a role in biology.
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Modified caffeine molecules help medical research move forward
Before researchers can develop targeted drugs, they need to know exactly how a disease works. Biochemist Bert Beerkens created molecules that allow them to find out. He used caffeine as the basis for new molecules that enable research into certain receptor proteins on cells.
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Portraits of 28 EU citizens in Leiden by seven anthropologists
Annick Dezitter from Belgium celebrates 3 October with heart and soul: she has become a fanatical Leidener. Her portrait is part of Leiden meets Europe: an exhibition of 28 portraits of EU citizens in Leiden. City photographer and third-year Cultural Anthropology student Wilke Geurds explains.
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‘Too many or too few memories can be problematic’
The Public Day of the Leiden Institute of Brain and Cognition (LIBC) has grown in recent years into one of the most popular popular-science events in Leiden. Tickets are selling fast for the upcoming edition on Friday 11 October in Stadsgehoorzaal in Leiden. Professor Bernet Elzinga tells us more.
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Small molecule prevents tumour cells from spreading
Leiden chemists, together with colleagues at the University of York (UK) and Technion (Israel) have discovered a small, sugar-like molecule that maintains the integrity of tissue around a tumour during cancer. This molecule prevents tumour cells from spreading from the primary cancer site to colonise…
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Friendship strengthens mental resilience of adolescents with unpleasant childhood experiences
As young people’s friendships improve, their mental resilience also increases. This is according to research conducted by Anne-Laura van Harmelen, Professor of Brain, Safety and Resilience at Leiden University.
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How drugs work better when encapsulated in nanoparticles
Chemist Tobias Bauer discovered ways to improve drugs by encapsulating them. Packages with iron nanoparticles, for example, can stimulate immune cells. Bauer will receive his PhD on 9 June.
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From a fossil to an animal skin: as a museum, do you let the original pass through the hands of your visitors, or a replica?
Educators in European science museums sometimes think rather differently about the definition of an 'authentic' object. They think carefully about how they present those objects to teach visitors something or make them curious. This was shown in research by the Science Communication & Society department.…
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The surgeon who wants to make her operations unnecessary
Lotje Zuur sometimes has to perform disfiguring operations. As a head and neck surgeon, she removes parts of the mouth, throat or face of people with cancer. Now a promising treatment may make such operations unnecessary. What would this mean for patients? This is what her inaugural speech on 19 September…
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Artificial intelligence as the co-pilot for drug discovery
There are more molecules that could conceivably be candidate drugs than there are stars in the universe. How can we ever efficiently identify those molecules? Professor of AI and Medicinal Chemistry, Gerard van Westen: ‘I’m going to use artificial intelligence as the co-pilot to make an automated search.’…
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Sea sponges may seem like simple creatures, but…
One of them turned out to be two thousand years old. And older giant barrel sponges appear to have a faster rate of cell division, unlike us. They produce antibiotics and much, much more. Lina Bayona Maldonado studied how the differences in such factors as age or oceanic depth affect the production…
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Ensnaring tumours in their own web
Erik Danen is looking at how to inhibit tumours that do not respond well to medicine – and he is making some headway. The Professor of Cancer Drug Target Discovery studies the interaction between tumour cells and their surroundings. Inaugural lecture on Friday 10 May.
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Embryos of the bitterling perform a somersault. This teaches us something new about natural selection
Even embryos can become embroiled in an evolutionary arms race with another species. Leiden biologists demonstrate this with larvae of the rosy bitterling that parasitize the gills of freshwater mussels. They published their research on February 19 in PNAS.
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Status update in the evolutionary race between humans and resistant bacteria: two steps forward for us
A patent for what may be a potent, new antibiotic. And: a clear overview of promising approaches to overcome a crucial resistance tactic employed by bacteria. In the span of one week, two researchers from Leiden are receiving their PhDs, each of them on an important step in the battle against bacteria…
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Intriguing food reflex discovered with a smartphone
Psychologist Hilmar Zech found that overweight people are actually more attracted to food pictures after eating than before. He did so using an old research method that he revamped for use on smartphones. Zech will defend his PhD on 30 April.
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Science
There are eight institutes at the Faculty of Mathematics and Natural Sciences:
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Savannah Landscapes for the future
Celebrating 20 years of Environmental Research and Education in Northern Cameroon
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Ansell & Bartenberger, ‘Varieties of experimentalism’
Experimentalism has emerged as a prominent approach for addressing environmental problems. Christopher Ansell (Berkeley) and Martin Bartenberger (Leiden University) survey the diversity of experimentation methods, identifying their strengths and weaknesses, and suggesting possibilities for fruitfully…
- Core members
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Crossing boundaries
Celebrating 20 years of environmental research in Cagayan Valley and Sierra Madre
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Online Course Safety & Security Challenges in a Globalized World
Security and safety challenges rank among the most pressing issues of modern times. Challenges such as cyber-crime, terrorism, and environmental disasters impact the lives of millions across the globe. The course will introduce you to this broad theme in an increasingly complex world.
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Online Course The Great Sustainability Transition
In this course, you will learn about sustainability and staying with the environmental boundaries of our planet. You will gain an understanding of the effects of growing affluence and population growth, the key challenges we are facing, and ways to influence your direct environment.
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Tymon de Haas receives LUF grant for research on the ecological impact of Roman expansion
Through the Byvanck Fund, Classical Mediterranean archaeologist Tymon de Haas has received a grant of €6,350 for his research on the ecological impact of Roman expansion. He will use this grant to investigate the traces of one of the oldest and best-preserved Roman cadastres, situated in the former…
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Ladinglijst van MSC Zoe bekendgemaakt op aandringen van Leidse jurist Esther Kentin
Toen in 2019 honderden afvalcontainers in de Waddenzee vielen, wilde de overheid geen informatie vrijgeven over wat er in de containers zat. Vijf jaar later weten we eindelijk meer, nadat hoogleraar Esther Kentin beroep deed op de Wet Open Overheid.
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Dutch cabinet considers legal coercion towards provinces in nitrogen strategy
At present, the cabinet still maintains that all provinces are motivated to cooperate with the sensitive issue of the nitrogen strategy. However, there are major concerns that the political landscape will look very different once the elections for the Provincial Councils on 15 March have been held.
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First graduates of Master’s Programme Governance of Sustainability
The first generation of Governance of Sustainability master's students has graduated. They received their diplomas during a festive ceremony at Wijnhaven on 17 September. And they will not be the last: The master's programme is only growing in popularity. ‘We are very proud of our first graduates, especially…
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Possible impact of Dutch provincial council elections on nitrogen plans
These might be ‘just’ provincial council elections in the Netherlands, but the outcome on 15 March could have serious consequences for how the country is governed. Conflicts between the government in The Hague and the provinces, and tension within the Dutch cabinet, might be looming. On 1 July, every…
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Darién Profundo: A historical ecology approach to human practices in Gran Darién, Panama
How have human-environmental entanglements changed in the Gulf of San Miguel, Darien, Panama, from the first traces human practices through to the present?
- About this minor
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Tenth Easter Island conference focuses on reconciliation
The tenth International Conference on Rapa Nui (Easter Island) and the Pacific will be a special edition with a focus on reconciliation. The fatal shooting in 1722 will be remembered, when the Dutch shot and killed ten Easter Islanders. The conference will be held in Leiden from 19 to 24 June.
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Small but not harmless
To what extent do nanoparticles accumulate in plants and animals, and what properties of the particles play a part in this? Willie Peijnenburg, professor of Environmental toxicology and biodiversity was awarded a Marie Curie grant to conduct research on the environmental effects of nanoparticles.
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Meeting with the ambassador of Kenya about research collaboration
A delegation of the Institute of Environmental Sciences (CML) of the Faculty of Science of Leiden University, led by the Dean of the Faculty of Science: Prof.dr. Geert de Snoo, visited the Kenyan ambassador Mr. Lawrence Lenayapa and his staff on Monday 29 of October in The Hague.
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Admission requirements
To be eligible for Industrial Ecology at Leiden University and Delft University of Technology, you must meet the following admission requirements.
- Ecology
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LUC Experience Day Recordings
This page contains the links to all the recordings of the Experience Day on Thursday 23 November 2023. Sample lecture 'Land, Law and Global Challenges' was recorded during the online Experience Day on October 13th.
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News and activities
news sustainable sustainability activities
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LUC Experience Day Recordings
This page contains the links to all the recordings of the Experience Day on Thursday 23 November 2023. Sample lecture 'Land, Law and Global Challenges' was recorded during the online Experience Day on October 13th.
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Sustainability - The sustainable university
In this dossier you can read about Leiden University’s commitment to sustainability.
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Novel role of the AT-HOOK MOTIF NUCLEAR LOCALIZED 15 gene in Arabidopsis meristem activity and longevity
Plant architecture has distinct forms in different plant species, but also within a species the finalarchitecture of a plant is determined by its gradual development and changes therein induced by environmental conditions during the plant’s life cycle.
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The plentiful river
Ichthyoarchaeological and biomolecular research to assess the trophic ecology of the Rhine-Meuse delta in the Holocene
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Chromatin organization & dynamics (Dr. Remus Dame)
Throughout all domains of life, from bacteria and archaea to eukaryotes, genomes adopt well-organized three-dimensional structures that can change in space and time to accommodate preferred transcriptional programs for environmental adaptation, the maintenance of cellular identity and differentiation…
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HARVEST: Plant foods in human evolution
The HARVEST project explores the dietary choices that our hominin ancestors and relatives made, by recovering information on what they consumed, and how factors like environmental variation, intrinsic biology, and development of food processing technologies could have influenced their decisions.
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Flows of six heavy metals
Can we provide the Dutch government with an integrative framework, wherein the various policies can be placed and the need for further measures can be identified?
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Stock-driven Scenarios on Global Material Demand
The role of material production as a driver of environmental impacts is increasing, which calls for a better understanding of global material flows. This thesis explores the role of in-use stocks of products, buildings and infrastructure as a key driver of global material demand and discusses the implications…
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From Mimesis to Metaphor: Reconciling Nature and Humanity in the Age of Climate Crisis
Environmental humility is integral to addressing the climate crisis, but humility can also lead to political domination. How can humans relate to nature more humbly without risking domination?
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A good start: Early prevention of anti-social behavior
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Discoveries in 2023
From nanoparticles to colliding ice planets and from biological origami to new x-ray scanner techniques: this year again, our scientists have made wonderful discoveries. From the largest numbers to the smallest molecules and from the oldest galaxies up to the latest algorithms, take a look at each institute's…
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Leiden Consortium on Individual Development (L-CID)
Why are not all children equally responsive to variations in the social environment?
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Gendered impacts of industrial logging
This study focuses on the local level impacts of a highly globalised industry: the international trade in tropical timber.