Holger Pletsch, Nuno Maulide und Thomas Pfeifer werden mit Heinz Maier-Leibnitz-Preisen 2013 ausgezeichnet.
Sie sind nicht deckungsgleich; ein Handschuh für die linke Hand passt nicht auf die
The lawyer, who has many years of leadership experience in the Max Planck Society, is closely acquainted with research administration and national and international science policy.
„The balance between social and legal conditions on the one hand, and the needs of
Klimaerwärmung führt zu evolutionären Veränderungen des Vogelzugs
Nestlinge von Mönchsgrasmücken (insgesamt 757 Jungvögel) aus Nestern entnommen und per Hand
Die Herstellung chiraler, enantiomerenreiner Substanzen ist ein zentrales Bestreben der Chemie. Der hier präsentierte neue Ansatz zur asymmetrischen Synthese beruht auf der sauberen und atomökonomischen Umwandlung von aromatischen Startmaterialien.
Hände nicht deckungsgleich sind, weshalb zum Beispiel ein Handschuh für die linke Hand
Astronomen haben kalte Materieströme von Wasserstoff aus der Frühzeit des Universums beobachtet, die in eine ferne Galaxie fließen und dort als Grundstoff für die Entstehung neuer Sterne dienen. Das Team um Neil Crighton (Max-Planck-Institut für Astronomie und Swinburne University of Technology) nutzte einen Zufall: einen fernen, hellen Quasar, der das Gas wie eine Art kosmischer Scheinwerfer von hinten anleuchtet.
Quasar beleuchtet (unten links, nachträglich ebenso wie der Sternenhintergrund von 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 as substrates for toxin-producing
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
Research shows factors that contribute to irreversible somatic differentiation providing an evolutionary advantage
Evolution In complex organisms, two basic types of cells are found: on the one hand
Only a few indivduals of plants species are prepared for increasing droughts
With such information in hand, it will be possible to improve predictions of where
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.
essential conflict arises between the developing and emerging countries on the one hand
