Dein Suchergebnis zum Thema: Hand

Host Change Alters Toxic Cocktail

https://www.mpg.de/1206477/host_change_toxic_cocktail?filter_order=L

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 as substrates for toxin-producing

Das schafft unser Gehirn mit links

https://www.mpg.de/10636091/asymmetrie-gehirn

Das schafft unser Gehirn mit links: Unser Körper, unser Verhalten, aber auch unser Gehirn sind alles andere als symmetrisch. Und das scheint wichtig zu sein, damit das Denken, Sprechen und die Motorik reibungslos funktioniert. Forscher am Max-Planck-Institut für Psycholinguistik fahnden nach genetischen Spuren für dieses Phänomen.
näherem Hinsehen zeigt sich, dass etwa ein Fuß länger ist als der andere, eine Hand

Exhibition: da Vinci’s books

https://www.mpg.de/13409753/leonardo-da-vinci-reflected-in-his-library?c=150889

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.
Francesco di Giorgio – a manuscript that has been annotated by the artist’s own hand

Polymersynthese – nicht so einfach

https://www.mpg.de/10838137/mpi-p_jb_2016?c=10584076

An zwei Beispielen, Graphen-Nanostreifen und formstabilen Dendrimeren, beschreibe ich komplexe Polymersynthesen und deren großen Nutzen für Elektronik einerseits und Gentherapie andererseits. Die erste Botschaft lautet: Für ehrgeizige Ziele der Materialforschung kann Synthese nicht nur „einfach und praktisch“ sein. Die zweite Botschaft lautet: Innovation braucht die richtigen Mitarbeiter und Partner.
describe complex polymer syntheses and their great benefits for electronics on the one hand

Exhibition: da Vinci’s books

https://www.mpg.de/13409753/leonardo-da-vinci-reflected-in-his-library

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.
Francesco di Giorgio – a manuscript that has been annotated by the artist’s own hand