news 2014

What motivates people to cooperate in collaborative endeavors? "First carrot, then stick". Tatsuya Sasaki, mathematician from the University of Vienna, has put forth for the first time ever a mathematical proof of this process. The study is recently published online in the "Journal of the Royal Society Interface".

The songs of the hermit thrush, a common North American songbird, follow principles found in much human music - namely the harmonic series. Researchers from the University of Vienna, Austria, the Cornish College of the Arts, USA, and the Philipps University of Marburg, Germany, are the first to demonstrate note selection from the harmonic series in a non-human animal using rigorous analytical methods.

A group of ravens is sometimes called a conspiracy. Mythology and folklore have attributed many supernatural features to these large black birds. During the last decades, studies on the cognitive abilities of ravens have indeed revealed that they are exceptionally intelligent. Ravens live in complex social groups and they can gain power in these groups by building social bonds that function as alliances.

Meiosis is not like another: Gabriela Cabral and Peter Schlögelhofer at the Max F. Perutz Laboratories (MFPL) of the University of Vienna and the Medical University of Vienna dived into the process of meiosis in specific plant species and revealed that these plants display an inversion of the standard meiotic phases.

Stroma cells are derived from connective tissue and may critically influence tumour growth. This knowledge is not new. However, bioanalyst Christopher Gerner and an interdisciplinary team from the University of Vienna and the Medical University of Vienna have developed a novel methodology for investigation.

An interdisciplinary team of researchers from the University of Vienna (Institute of Inorganic Chemistry) and the Medical University of Vienna (Institute for Cancer Research) has successfully developed a new strategy for reducing the often serious side effects of an important class of modern anticancer drugs (tyrosine kinase inhibitors).

The integration of digital expert knowledge and automation of risk analyses can greatly improve software test procedures and make cloud computing more secure. This is shown by the latest results of a project of the University of Innsbruck, funded by the Austrian Science Fund FWF, on the quality assurance of security critical systems which have recently been published.

In Innsbruck a team of physicists led by Francesca Ferlaino experimentally observed how the anisotropic properties of particles deform the Fermi surface in a quantum gas. The work published in Science provides the basis for future studies on how the geometry of particle interactions may influence the properties of a quantum system.

In Innsbruck a team of physicists led by Francesca Ferlaino experimentally observed how the anisotropic properties of particles deform the Fermi surface in a quantum gas. The work published in Science provides the basis for future studies on how the geometry of particle interactions may influence the properties of a quantum system.

In recent years, it has become possible to see directly individual atoms using electron microscopy - especially in graphene, the one-atom-thick sheet of carbon. An international collaboration between the University of Vienna and research teams from the UK and the US has shown how an electron beam can move silicon atoms through the graphene lattice without causing damage.

The research team of Annette Rompel from the Institute for Biophysical Chemistry, University of Vienna explore the mechanisms behind the "browning reaction" during the spoilage of mushrooms. The researchers were able to demonstrate that the enzyme responsible is already formed prior to fungal spoiling.

Scientists from Oxford University, the University of Vienna, and the Max Planck Institute at Seewiesen have shown that a spontaneous innovation by a Goffin's cockatoo can spread to other conspecifics by social learning. After observing that an adult male Goffin cockatoo named Figaro spontaneously started to sculpt stick tools out of wooden aviary beams to use them for raking in nuts out of his reach, the researchers wondered what effect, if any, such individual invention might have on social companions.

Nitrite-oxidizing bacteria are key players in the natural nitrogen cycle on Earth and in biological wastewater treatment plants. For decades, these specialist bacteria were thought to depend on nitrite as their source of energy. An international team of scientists led by Holger Daims, a microbiologist at the University of Vienna, has now shown that nitrite-oxidizing bacteria can use hydrogen as an alternative source of energy.

Researchers from the Institute for Quantum Optics and Quantum Information (IQOQI), the Vienna Center for Quantum Science and Technology (VCQ), and the University of Vienna have developed a fundamentally new quantum imaging technique with strikingly counterintuitive features. For the first time, an image has been obtained without ever detecting the light that was used to illuminate the imaged object, while the light revealing the image never touches the imaged object.

By combining climate and glacier models, scientists headed by Ben Marzeion from the University of Innsbruck have found unambiguous evidence for anthropogenic glacier mass loss in recent decades. In a paper published in Science, the researchers report that about one quarter of the global glacier mass loss during the period of 1851 to 2010 is attributable to anthropogenic causes.

Ion channels are involved in many physiological and pathophysiological processes throughout the human body. A young team of researchers led by pharmacologist Anna Stary-Weinzinger from the Department of Pharmacology and Toxicology, University of Vienna investigated how ion flux through a voltage gated sodium ion channel works in detail.

Can neutrons be located at a different place than their own spin? A quantum experiment, carried out by a team of researchers from the Vienna University of Technology, demonstrates a new kind of quantum paradox. The Cheshire Cat featured in Lewis Caroll's novel 'Alice in Wonderland' is a remarkable creature: it disappears, leaving its grin behind.

Vacuum fluctuations may be among the most counter-intuitive phenomena of quantum physics. Theorists from the Weizmann Institute (Rehovot, Israel) and the Vienna University of Technology propose a way to amplify their force. Vacuum is not as empty as one might think. In fact, empty space is a bubbling soup of various virtual particles popping in and out of existence ' a phenomenon called 'vacuum fluctuations'.

Developmental processes in all living organisms are controlled by genes. At the same time there is a continuous metabolism taking place. Wolfram Weckwerth, head of the Department of Ecogenomics and Systems Biology at University of Vienna, and his team have analyzed this interaction between metabolism and developmental processes in flowering plants (angiosperms).

Quasiparticles can be used to explain physical phenomena in solid bodies even though they are not actual physical particles. Physicists in Innsbruck have now realized quasiparticles in a quantum system and observed quantum mechanical entanglement propagation in a many-body system.