Dein Suchergebnis zum Thema: Hand

Leaf beetles fascinate us because of their amazing variety of shapes and rich colouring. Their larvae, however, are dangerous plant pests. Larvae of the leaf beetle Chrysomela lapponica attack two different tree species: willow and birch. To fend off predator attacks, the beetle larvae produce toxic butyric acid esters or salicylaldehyde, whose precursors they ingest with their leafy food. Scientists of the Max Planck Institute for Chemical Ecology in Jena, Germany, now found that a fundamental change in the genome has emerged in beetles that have specialized in birch: The activity of the salicylaldehyde producing enzyme salicyl alcohol oxidase (SAO) is missing in these populations, whereas it is present in willow feeders. For birch beetles, the loss of this enzyme and thereby the loss of salicylaldehyde is advantageous: the enzyme is no longer needed because its substrate salicyl alcohol is only present in willow leaves, but not in birch. Birch beetles can therefore save resources instead of costly producing the enzyme. First and foremost, however, the loss of salicylaldehyde also means that birch feeding populations do not betray themselves to their own enemies anymore, who can trace them because of the odorous substance.
On the one hand, the uptake of special plant molecules

Laura Spitler has been head of the Lise Meitner group “Universal detection of ionised matter with fast radio bursts”for almost a year. The team is working on one of the hot topics in astrophysics. At Cornell University in the US, Spitler wrote her doctoral thesis on these largely unexplained phenomena. Her group at the Max Planck Institute for Radio Astronomy in Bonn is currently investigating the space between galaxies with the help of fast radio bursts and using these bursts as probes for the intergalactic and interstellar medium. In an interview, the researcher explains her work.
On the one hand, new radio telescopes have recently

Research shows factors that contribute to irreversible somatic differentiation providing an evolutionary advantage
organisms, two basic types of cells are found: on the one hand

Leaf beetles fascinate us because of their amazing variety of shapes and rich colouring. Their larvae, however, are dangerous plant pests. Larvae of the leaf beetle Chrysomela lapponica attack two different tree species: willow and birch. To fend off predator attacks, the beetle larvae produce toxic butyric acid esters or salicylaldehyde, whose precursors they ingest with their leafy food. Scientists of the Max Planck Institute for Chemical Ecology in Jena, Germany, now found that a fundamental change in the genome has emerged in beetles that have specialized in birch: The activity of the salicylaldehyde producing enzyme salicyl alcohol oxidase (SAO) is missing in these populations, whereas it is present in willow feeders. For birch beetles, the loss of this enzyme and thereby the loss of salicylaldehyde is advantageous: the enzyme is no longer needed because its substrate salicyl alcohol is only present in willow leaves, but not in birch. Birch beetles can therefore save resources instead of costly producing the enzyme. First and foremost, however, the loss of salicylaldehyde also means that birch feeding populations do not betray themselves to their own enemies anymore, who can trace them because of the odorous substance.
On the one hand, the uptake of special plant molecules

On the occasion of the UN Climate Change Conference in Durban, South Africa, Jochem Marotzke, Director at the Max Planck Institute for Meteorology in Hamburg, talks about the climate summit’s chances of producing a result and tells us that effective mitigation measures are still within grasp.
the developing and emerging countries on the one hand

Neuer Zelltyp fungiert als Wegbereiter für bewegungsrelevante Nervenfasern
strampelt, streckt das Kind nicht viel später die Hand

The Max Planck Institute for Informatics and Google establish the Saarbrücken Research Center for Visual Computing, Interaction and Artificial Intelligence.
pave the way for new algorithms that, on the one hand

Leaf Beetle disperses the fungus to its host plant, expanding its range.
pupal protection for an herbivorous beetle on the one hand

Artificial intelligence (AI), such as machine learning with neural networks, opens up new possibilities in many areas such as science, technology and medicine, but also raises questions of ethics. Do the benefits or risks outweigh the risks?
It is, on the other hand, particularly hard to beat

Leonardo da Vinci was a tireless and inquisitive reader. He owned more than 200 books about science and technology as well as literary and religious topics. An exhibition that is being organized by the Max Planck Institute for the History of Science and the Berlin State Library at the Museo Galileo in Florence has shed new light on the intellectual universe of the artist, engineer and philosopher, who remains as fascinating as ever 500 years after his death.
manuscript that has been annotated by the artist’s own hand