321 search results for “biologist he kok” in the Public website
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Qualifying round of Famelab on 16 February in Leiden
Which two scientists will present their research best in three minutes? It could be the one with the most supporters.
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Female songbirds: Make her voice heard!
Listening to birds and helping science, it is possible. Institute of Biology Leiden (IBL) researchers Karan Odom and Katharina Riebel launched a citizen science project to improve the worldwide documentation of female birdsong.
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Drug development: how can we make it more efficient?
It takes years to develop new medicines, from the test tube to trials in humans. During the process it often happens that a drug that seems promising in the initial stage has to be dropped in a later phase. This costs time and money. Leiden University and the LUMC are working closely together to make…
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FameLab: all about blood vessels in 180 seconds
PhD candidates in medicine, Wouter Jan Geelhoed and Nan van Geloven, are the winners of the Leiden preliminary round of FameLab. They are through to the final on 22 April.
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Lions in West and Central Africa apparently unique
Lions in West and Central Africa form a unique group, only distantly related to lions in East and Southern Africa. Biologists at Leiden University confirm this in an article published in Scientific Reports.
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Taking a closer look at resistance to tuberculosis bacteria
Though tuberculosis can be cured today, new resistant strains of the bacteria are becoming a growing problem in the medical world. Biologist Annemarie Meijer and her colleagues are studying resistance to this disease. Their research is already yielding several interesting clues that could help the development…
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New substances inhibit inflammation in the brain
Chemical biologists from Leiden, led by Dr Mario van der Stelt, have discovered substances that can reduce inflammation processes in the brain. This is a first step in the development of potential medicines for the treatment of brain diseases like Alzheimer's and Parkinson's. Published in Proceedings…
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Specialised plants may not be as vulnerable as was thought
Plants that are pollinated by fewer species of animal may be less vulnerable to change than was thought. This is what Saskia Klumpers discovered in the Rocky Mountains in Colorado. She will be awarded a PhD on 15 December.
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Vera van Noort appointed “Van der Klaauw professor”
Vera van Noort, professor in Computational Systems Biology at the KU Leuven (Belgium), is appointed holder of the rotating chair “Van der Klaauw Professor” for the year 2015-2016 at the Institute of Biology. Holders of the chair bring inspiring research and teaching in theoretical biology to the University.…
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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.
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Leiden University celebrates 444th birthday with residents of Leiden and The Hague
Leiden University celebrated its 444th anniversary with a historical procession on 8 February. It celebrated this year’s Dies Natalis in time-honoured fashion with a ceremony in the Pieterskerk, but broke with tradition by sending professors out to primary schools.
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Introducing Sophia Hendrikx
Sophia Hendrikx started her PhD project at LUCAS in March 2015...
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Better and faster ways of searching for antibiotics
Antibiotic-resistant bacteria are a major problem worldwide. Molecular biologist Changsheng Wu explored innovative methods of developing new antibiotics more simply and more easily. He also discovered a new type of antibiotic.
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KNAW Early Career Award for ecologist Michiel Veldhuis
Curiosity is the driving force behind the research of ecologist Michiel Veldhuis. The associate professor investigates ecosystems in relation to climate change in the savannahs of Africa. More and more, he is also looking at social factors such as the influence of population growth. The KNAW rewards…
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Songbird passes grammar test using mnemonics
Songbirds apparently use mnemonics rather than more complex grammatical rules to recognise structures in which they have been trained. Leiden behavioural biologist Caroline van Heijningen published an article on this subject on Tuesday 17 November in PNAS.
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Seven new Medical Delta professors
Medical Delta has appointed seven professors who will bridge the medical worlds of Leiden, Delft and Rotterdam.
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‘Unimportant’ plant gene turns out to be essential
Leiden biologists have shown that a gene present in plants, animals and yeasts does play an important role in plants, although for years the gene was considered unimportant. It turns out the gene plays a crucial role in the development of vascular tissue in plants. Publication in Nature Plants on 11…
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‘How can we translate the language of cells into cancer therapies?’
On 23 April 2021, Professor Alfred Vertegaal from the Department of Cell and Chemical Biology at the Leiden University Medical Center (LUMC) delivered his inaugural lecture ‘Unraveling and exploiting cellular communication codes’. Vertegaal used the opportunity to describe how research in the field…
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Student team invents Suckerspheres: sustainable alternative for microplastic
A Leiden Groningen student team has reached the European finals of the BISC-E competition. In this annual competition students have to come up with a sustainable solution to a major social problem. The team invented Suckerspheres: a natural alternative to the plastic microbeads that are still widely…
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Afternoon of Discoveries for children
As a prelude to the Night of Discoveries, an Afternoon of Discoveries will be held in Leiden on 21 September for children from the age of eight. Researchers will tell exciting tales and the children will get to do experiments.
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How artists classified the animal kingdom
In the sixteenth and seventeenth centuries artists were fascinated by how the animal kingdom was classified. They were in some instances ahead of natural historians.
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The African lion consists of two subspecies
Biologist Laura Bertola argues that the traditional separation of lions into African and Asian subspecies is incorrect. She has discovered that Africa is actually home to two subspecies. Her PhD defense was on 18 March 2015.
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Land van Ons and Leiden University start cooperation in peat meadow area in Oud Ade
Land van Ons, a cooperation that buys agricultural land for the restoration of biodiversity and landscape, and Leiden University join forces. Together, they will investigate over a longer period of time which agricultural management leads to the best restoration of biodiversity. The research will start…
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In search of the frontier between sound and language
Comparison between babies and song-birds when they are learning a non-existent language—a study of this kind has never been tried before. But this is what Claartje Levelt, Carel ten Cate (Leiden University) and Jelle Zuidema (University of Amsterdam) are attempting.
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Cities have a direct influence on evolution
A global biological study has provided the most direct evidence to date that humans, and specifically cities, are the drivers of evolutionary change on Earth. Leiden University, Naturalis and the Municipality of Leiden worked on and helped fund the study.
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Halting protein degradation may contribute to new cancer treatment
Chemist Gerjan de Bruin has designed a method of slowing down the degradation process of proteins in cells. This may contribute to new cancer medicines with fewer side-effects. PhD defence on 1 June.
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Non-invasive DNA-labeling tool opens doors for new research
Dutch researchers have developed a new tool to label DNA for studying chromosomes in live cells. The tool is non-invasive and can be applied in culture but also in living organisms, such as zebrafish embryos. The team published their findings in the journal Nucleic Acids Research.
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On imagination in science: ‘A good researcher is also an inventor’
As far as Daniël Pijnappels, Professor of Cellular Electrophysiology, is concerned, both researching and inventing are essential for a scientist.
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Tackling local societal challenges through science
Bringing science, technology and innovation to places that normally do not have access to these areas of knowledge. This is the goal of the first Open Science Hub in Portugal, founded in 2017 in collaboration with Leiden University. The hub is managed by assistant professor of astronomy and society…
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Butterflies’ wing patterns change with the seasons
Tropical butterflies adapt to their environment to improve their chances of survival. The changes are triggered by hormone signals that transmit information about temperature to the butterflies' tissues. Biologist Ana Rita Mateus shows how a complex combination of environment, physiology and genetics…
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‘Don’t ever discriminate yourself by any gender-related label’
Iranian molecular plant biologist Salma Balazadeh started her career in Germany. Now she sets up a research group in Leiden to study stress in plants to secure global food supply. Her outlook on women in science in the context of the International Day for Women and Girls in Science, 11 February.
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Leiden academics nominated for Person of the Year
Leiden academics Remco Breuker and Auke-Florian Hiemstra stand to win the title of Person of the Year.
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Greed and fear hamper cooperation
Everyone benefits when cooperation runs smoothly However, people often act obstructively. Why do they do that? Professor of Social Psychology Carsten de Dreu researches this issue using a wide variety of methods, from brain scans to the role of religion. Inaugural lecture 7 October.
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Beetle can limit hay fever
Leiden biologist Suzanne Lommen and an international team of scientists have investigated how a beetle can reduce hay fever in Europe. Locally, the beetle is even able to stop pollen production in a plant that causes allergic reactions. Publication in Nature Communications on April 21.
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Cum laude PhD defence: natural seed bank drives diversity
Each year, poppies disperse seeds that grow into a new generation of flowers. Sometimes, some of the seeds postpone their germination for a few years, for example when they’re covered by a layer of sand. Only when the sand disappears, do they start to sprout. Margriet Oomen did mathematical research…
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Major European subsidy for Leiden evolutionary biology
Paul Brakefield, Professor of Evolutionary Biology at the Institute of Biology in Leiden (IBL) has been awarded an ERC Advanced Grant for his research. He will receive 2.5 million euro to develop his research programme over a period of five years.
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Learning a language is a staggering task
To properly understand how babies absorb a language we need to study the process from a number of different perspectives, linguist Claartje Levelt argues. She accepts her appointment as Professor of Language Acquisition on 27 March with an inaugural lecture entitled ‘Language in its infancy’.
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Leiden breakthrough in research on nanotherapy
Nanoparticles that transport medicines to a specific part of the human body are usually broken down in the liver prematurely. Jeroen Bussmann from Leiden University has discovered a new method to prevent this from happening. Publication in ACS Nano.
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Developing new therapies to fight muscle disease
Biophysicist Alireza Mashaghi and his collaborators are taking up the fight against muscular dystrophy: genetic disorders that cause muscle weakness. They want to inhibit the clumping of proteins that results in toxic aggregates. For this, the team receives 550,000 euros from Health Holland. The team…
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'In an ideal world we would recycle everything'
Merijn Tinga hit the headlines in 2016 as the Plastic Soup Surfer. In force six winds, the Leiden biologist ventured across the English Channel on a hydrofoil kiteboard made from plastic bottles. Interview with this Leiden artist who is fighting the mountain of plastic waste and finding his feet as…
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Marc Baggelaar graduates cum laude on body’s own marijuana
PhD candidate Marc Baggelaar of the Leiden Institute of Chemistry (LIC) graduated cum laude on Thursday 6 April. His thesis on the endocannabinoid system in the brain is very comprehensive and of high quality, according to the jury. ‘A very talented young scientist, that definitely belongs to the top…
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Mathematical model helps to explain the formation of spine and ribs
Mathematical biologists from Leiden have developed a model that helps to explain how the spine and vertebrae, among other things, form during embryonic development. The same process, the other way around, plays a key role in cancer metastasis. Publication in iScience.
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Start of new sound impact project on fish
On the 1st of October a new project funded by the Joint Industry Programme (JIP) started at the IBL on the potentially negative effects of sound on fish. Behavioural biologist and bioacoustic specialist Dr. Hans Slabbekoorn leads the international research team.
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Neanderthals could tolerate smoke
The idea that modern humans displaced Neanderthals because they were better protected against toxic smoke components is now under fire. An earlier study that put forward this suggestion has now been refuted by genetic research by scientists from Leiden and Wageningen. This new research was published…
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Human Frontier Science Program award for Katharina Riebel
An international research team consisting of Katharina Riebel as leading PI and two international collaborators were awarded a Human Frontier Science Program grant for their proposal ‘Seeing voices’: the role of multimodal cues in vocal learning.
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New measuring method facilitates drug research
Leiden chemical biologists led by Dr Mario van der Stelt have developed a method to facilitate the search for new drugs. This method has allowed them to take an important first step in the development of a drug against obesity.
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Aggressiveness of cancer cells halted
Zebrafish-human communication shows that cancer cells lacking a signaling protein are less able to develop aggressive metastatic properties. This discovery has been made by molecular cell biologist Claudia Tulotta. PhD defence 14 June.
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Three VICI grants for Leiden researchers
Three Leiden researchers have been awarded a prestigious Vici grant by the Netherlands Organisation for Scientific Research (NWO). They each receive 1.5 million Euro to develop their own research project in the coming 5 years.
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Children learn early on that scientists are men
When children were asked to draw a scientist, a bald, middle-aged man in a white coat was most often depicted. Why is that? A group of Leiden University science communication researchers discovered that children already get this impression in primary school. Published in PLOS ONE on 16 November.