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Article ID: 696287

Is the sky the limit?

University of Vienna

What stops a species adapting to an ever-wider range of conditions, continuously expanding its geographic range? The biomathematician Jitka Polechová, an Elise Richter Fellow at the University of Vienna, has published a paper in PLoS Biology which explains the formation of species’ range margins. The theory shows that just two compound parameters, important for both ecology and evolution of species, are fundamental to the stability of their range: the environmental heterogeneity and the size of the local population.

Released:
19-Jun-2018 6:05 AM EDT
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Article ID: 696172

To Share or Not to Share?

University of Vienna

When are primary school children willing to share valuable resources with others and when are they not? A team of researchers from the University of Vienna lead by cognitive biologist Lisa Horn investigated this question in a controlled behavioural experiment. The motivation to share seems to be influenced by group dynamical and physiological factors, whereas friendship between the children seems to be largely irrelevant. The results of their study have been published in the journal Scientific Reports.

Released:
15-Jun-2018 5:05 AM EDT
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Social and Behavioral Sciences

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Article ID: 696120

Realization of high-performance magnetic sensors due to magnetic vortex structures

University of Vienna

Magnetic sensors play a key role in a variety of applications, such as speed and position sensing in the automotive industry or in biomedical applications. Within the framework of the Christian Doppler Laboratory "Advanced Magnetic Sensing and Materials" headed by Dieter Süss novel magnetic sensors have been realized that surpass conventional technologies in performance and accuracy in a cooperation between the University of Vienna, the Danube University Krems and Infineon AG. The researchers present the new development in the latest issue of the journal "Nature Electronics".

Released:
14-Jun-2018 6:05 AM EDT
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  • Embargo expired:
    24-May-2018 11:00 AM EDT

Article ID: 695064

A System of Check and Balances in the Blood

University of Vienna

Hematopoietic Stem Cells (HSCs) give rise to blood and immune cells of the body, and are therefore essential for our survival. They are in a dormant state, but whenever new blood needs to be formed, such as after blood loss or chemotherapy, they are rapidly activated to compensate for the loss. After completing their mission, they need to go back to their dormant state. The group of Manuela Baccarini at the Max F. Perutz Laboratories, a joint venture of the University of Vienna and the Medical University of Vienna, has now shown how intracellular signalling can safeguard this delicate balance between activation and dormancy. Their results are published in the prominent journal Cell Stem Cell.

Released:
24-May-2018 4:00 AM EDT
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Article ID: 694913

Embryonic Gene Regulation Through Mechanical Forces

University of Vienna

sDuring embryonic development genetic cascades control gene activity and cell differentiation. In a new publication of the journal PNAS, the team of Ulrich Technau of the Department of Molecular Evolution and Development at the University of Vienna reported that besides the genetic program, also mechanical cues can contribute to the regulation of gene expression during development.

Released:
22-May-2018 5:05 AM EDT
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Article ID: 692652

Sexual Objectification Influences Visual Perception

University of Vienna

It has been suggested that sexually objectified women or men are visually processed in the same fashion of an object. Far from being unanimously accepted, this claim has been criticized by a lack of scientific rigor. A team led by Giorgia Silani, in collaboration with Helmut Leder, of the University of Vienna, and scientists of the University of Trieste and SISSA have explored the conditions under which this phenomenon persists. The results of the study were recently published in the renowned scientific journal "PlosOne".

Released:
12-Apr-2018 5:05 AM EDT
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Article ID: 691853

Can the Causal Order Between Events Change in Quantum Mechanics?

University of Vienna

Researchers at the University of Vienna and the Austrian Academy of Sciences develop a new theoretical framework to describe how causal structures in quantum mechanics transform. They analyse under which conditions quantum mechanics allows the causal structure of the world to become "fuzzy". In this case, a fixed order of events is not possible.

Released:
28-Mar-2018 9:05 AM EDT
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  • Embargo expired:
    26-Feb-2018 11:00 AM EST

Article ID: 690092

King Penguins May Be on the Move Very Soon

University of Vienna

More than 70 percent of the global King penguin population, currently forming colonies in Crozet, Kerguelen and Marion sub-Antarctic islands, may be nothing more than a memory in a matter of decades, as global warming will soon force the birds to move south, or disappear. This is the conclusion of a study published in the current issue of the prestigious journal Nature Climate Change and performed by an international team of researchers from France, Monaco, Italy, Norway, South Africa, Austria and US.

Released:
26-Feb-2018 5:05 AM EST
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Article ID: 689594

Fingerprints of Quantum Entanglement

University of Vienna

Quantum entanglement is a key feature of a quantum computer. Yet, how can we verify that a quantum computer indeed incorporates a large-scale entanglement? Using conventional methods is hard since they require a large number of repeated measurements. Aleksandra Dimić from the University of Belgrade and Borivoje Dakić from the Austrian Academy of Sciences and the University of Vienna have developed a novel method where in many cases even a single experimental run suffices to prove the presence of entanglement. Their surprising results will be published in the online open access journal npj Quantum Information of the Nature Publishing group.

Released:
15-Feb-2018 5:05 AM EST
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Article ID: 689118

The Schrödinger Equation as a Quantum Clock

University of Vienna

Materials with controllable quantum mechanical properties are of great importance for the electronics and quantum computers of the future. However, finding or designing realistic materials that actually have these effects is a big challenge. Now, an international theory and computational team led by Cesare Franchini from the University of Vienna, find that multiple quantum interactions can coexist in a single real material and show how an electric field can be used to control them. The results of this research are now published in Nature Communications.

Released:
7-Feb-2018 5:05 AM EST
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