Perikis Livas

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Tracing Knowledge
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  • April 10, 2014
  • 10:44 AM
  • 110 views

Saturn’s hexagon: an amazing phenomenon

by Perikis Livas in Tracing Knowledge

Researchers at the Planetary Sciences Group of the UPV/EHU-University of the Basque Country reveal some of the secrets of Saturn’s mysterious hexagonal wave, including its rotation period, which could be that of the planet itself

News Release April 8, 2014 University of the Basque Country... Read more »

Sánchez-Lavega, A., del Río-Gaztelurrutia, T., Hueso, R., Pérez-Hoyos, S., García-Melendo, E., Antuñano, A., Mendikoa, I., Rojas, J., Lillo, J., Barrado-Navascués, D.... (2014) The long-term steady motion of Saturn's hexagon and the stability of its enclosed jet stream under seasonal changes. Geophysical Research Letters, 41(5), 1425-1431. DOI: 10.1002/2013GL059078  

  • April 10, 2014
  • 08:54 AM
  • 151 views

How plants become zombies

by Perikis Livas in Tracing Knowledge

Forget popular video game Plants Vs. Zombies, some plants are zombies and scientists have uncovered how bacterial parasites turn them into the living dead.
News Release APRIL 8, 2014 John Innes Centre... Read more »

  • April 10, 2014
  • 06:38 AM
  • 126 views

Study Tests Theory that Life Originated at Deep Sea Vents

by Perikis Livas in Tracing Knowledge

One of the greatest mysteries facing humans is how life originated on Earth. Scientists have determined approximately when life began (roughly 3.8 billion years ago), but there is still intense debate about exactly how life began. One possibility has grown in popularity in the last two decades – that simple metabolic reactions emerged near ancient seafloor hot springs, enabling the leap from a non-living to a living world.

News Release April 9, 2014 Media Relations Office Woods Hole Oce........ Read more »

Reeves EP, McDermott JM, & Seewald JS. (2014) The origin of methanethiol in midocean ridge hydrothermal fluids. Proceedings of the National Academy of Sciences of the United States of America. PMID: 24706901  

  • April 9, 2014
  • 08:01 AM
  • 71 views

From Quark Soup to Matter

by Perikis Livas in Tracing Knowledge

Tracking the Transition of Early-Universe Quark Soup to Matter-as-we-know-it

New evidence from the Relativistic Heavy Ion Collider reveals different kinds of phase changes at different collision energies... Read more »

STAR Collaboration, L. Adamczyk, J. K. Adkins, G. Agakishiev, M. M. Aggarwal, Z. Ahammed, I. Alekseev, J. Alford, C. D. Anson, A. Aparin.... (2014) Beam-Energy Dependence of Directed Flow of Protons, Antiprotons and Pions in Au Au Collisions. Cornell University Library. arXiv: 1401.3043v2

  • April 6, 2014
  • 10:38 AM
  • 84 views

Like a giant elevator to the stratosphere

by Perikis Livas in Tracing Knowledge

Recent research results show that an atmospheric hole over the tropical West Pacific is reinforcing ozone depletion in the polar regions and could have a significant influence on the climate of the Earth.... Read more »

Rex, M., Wohltmann, I., Ridder, T., Lehmann, R., Rosenlof, K., Wennberg, P., Weisenstein, D., Notholt, J., Krüger, K., Mohr, V.... (2013) A Tropical West Pacific OH minimum and implications for stratospheric composition. Atmospheric Chemistry and Physics Discussions, 13(11), 28869-28893. DOI: 10.5194/acpd-13-28869-2013  

  • April 3, 2014
  • 10:30 AM
  • 85 views

Νew insights into quantum dynamics and quantum chaos

by Perikis Livas in Tracing Knowledge

A team of researchers led by University of Notre Dame physicist Boldizsar Janko has announced analytical prediction and numerical verification of novel quantum rotor states in nanostructured superconductors.... Read more »

Lin SH, Milošević MV, Covaci L, Jankó B, & Peeters FM. (2014) Quantum rotor in nanostructured superconductors. Scientific reports, 4542. PMID: 24686241  

  • March 27, 2014
  • 05:18 PM
  • 104 views

First sightings of solar flare phenomena

by Perikis Livas in Tracing Knowledge

Video of magnetic field lines “slipping reconnection” bring scientists a step closer to predicting when and where large flares will occur.



Human civilisation is nowadays maintained by technology and that technology is vulnerable to space weather

Dr Jaroslav Dudik



News Release March 27, 2014 University of Cambridge... Read more »

Dudík, J., Janvier, M., Aulanier, G., Del Zanna, G., Karlický, M., Mason, H., & Schmieder, B. (2014) SLIPPING MAGNETIC RECONNECTION DURING AN X-CLASS SOLAR FLARE OBSERVED BY /AIA . The Astrophysical Journal, 784(2), 144. DOI: 10.1088/0004-637X/784/2/144  

  • March 27, 2014
  • 07:19 AM
  • 112 views

Kelvin Waves on Quantum

by Perikis Livas in Tracing Knowledge

Kelvin Wave Seen on Quantum “Tornado” for First Time



” We weren’t surprised to see the Kelvin waves on the quantum vortex, but we were excited to see them because they had never been seen before. Seeing the Kelvin waves provided the first experimental evidence that previous theories predicting they would be launched from vortex reconnection were correct. “

Daniel Lathrop

UMD physics professor



News Release March 25, 2014 University of Maryland... Read more »

Fonda, E., Meichle, D., Ouellette, N., Hormoz, S., & Lathrop, D. (2014) Direct observation of Kelvin waves excited by quantized vortex reconnection. Proceedings of the National Academy of Sciences, 111(Supplement_1), 4707-4710. DOI: 10.1073/pnas.1312536110  

  • March 18, 2014
  • 07:48 AM
  • 152 views

Fine-Tuning Stephen Hawking’s Theory of Mass

by Perikis Livas in Tracing Knowledge

If you want to know your body’s mass, you hop on a scale and watch the needle swing. But if you want to know the mass of a region out in space, there’s no cosmic equivalent — the best you can do is consult a geometric formula.... Read more »

Hubert L. Bray, Jeffrey L. Jauregui, & Marc Mars. (2014) Time flat surfaces and the monotonicity of the spacetime Hawking mass II. Cornell University Library. arXiv: 1402.3287v1

Hubert L. Bray, & Jeffrey L. Jauregui. (2013) Time flat surfaces and the monotonicity of the spacetime Hawking mass. Cornell University Library. arXiv: 1310.8638v2

  • March 17, 2014
  • 08:02 AM
  • 133 views

Vast Gene-Expression Map Yields Neurological and Environmental Stress Insights

by Perikis Livas in Tracing Knowledge

A consortium led by scientists from the U.S. Department of Energy’s Lawrence Berkeley National Laboratory (Berkeley Lab) has conducted the largest survey yet of how information encoded in an animal genome is processed in different organs, stages of development, and environmental conditions. Their findings paint a new picture of how genes function in the nervous system and in response to environmental stress.

They report their research this week in the Advance Online Publication of the j........ Read more »

Brown, J., Boley, N., Eisman, R., May, G., Stoiber, M., Duff, M., Booth, B., Wen, J., Park, S., Suzuki, A.... (2014) Diversity and dynamics of the Drosophila transcriptome. Nature. DOI: 10.1038/nature12962  

  • March 13, 2014
  • 06:54 AM
  • 129 views

Outside the body our memories fail us

by Perikis Livas in Tracing Knowledge

New research from Karolinska Institutet and Umeå University demonstrates for the first time that there is a close relationship between body perception and the ability to remember. For us to be able to store new memories from our lives, we need to feel that we are in our own body. According to researchers, the results could be of major importance in understanding the memory problems that psychiatric patients often exhibit.

Press release March 12, 2014 Editor: Karin Wikman Umeå Uni........ Read more »

Bergouignan, L., Nyberg, L., & Ehrsson, H. (2014) Out-of-body-induced hippocampal amnesia. Proceedings of the National Academy of Sciences. DOI: 10.1073/pnas.1318801111  

  • February 13, 2014
  • 07:11 AM
  • 185 views

Solving An Evolutionary Puzzle

by Perikis Livas in Tracing Knowledge

New Bedford Harbor Pollution Prompts PCB-Resistance in Atlantic Killifish
- News release February 12, 2014 Woods Hole Oceanographic Institution (WHOI)
- Focus : Fundulus heteroclitus
- Research articles... Read more »

  • February 12, 2014
  • 07:02 AM
  • 157 views

Scientists identify gene linking brain structure to intelligence

by Perikis Livas in Tracing Knowledge

Scientists identify gene linking brain structure to intelligence

... Read more »

  • February 12, 2014
  • 05:20 AM
  • 175 views

Bacteria at super-resolution

by Perikis Livas in Tracing Knowledge

A new method that couples microfluidics and super-resolution microscopy to image live bacteria at unsurpassed spatial and temporal resolutions has been developed. Uniquely, this technology considerably improves cell stability, allows for long time-lapse imaging and completely eliminates chromatic aberrations.

HFSP Career Development Award holder Marcelo Nollmann and Young Investigator Grant holder Tam Mignot and colleagues

Awardees Articles February 11, 2014 Human Frontier Science Program... Read more »

Diego I. Cattoni, Jean-Bernard Fiche, Alessandro Valeri, Tâm Mignot, Marcelo Nöllmann. (2013) Super-Resolution Imaging of Bacteria in a Microfluidics Device. PLOS ONE. DOI: 10.1371/journal.pone.0076268  

  • February 8, 2014
  • 06:01 AM
  • 185 views

Toxin from Brain Cells Triggers Neuron Loss in Human ALS Model

by Perikis Livas in Tracing Knowledge

Study in Human Cells May Improve Ability to Identify Useful Drug Targets

-News release February 6, 2014 Columbia University Medical Center
-Reference paper
-Focus on Necroptosis... Read more »

Diane B. Re, Virginia Le Verche, Changhao Yu, Mackenzie W. Amoroso, Kristin A. Politi, Sudarshan Phani, Burcin Ikiz, Lucas Hoffmann, Martijn Koolen, Tetsuya Nagata.... (2014) Necroptosis Drives Motor Neuron Death in Models of Both Sporadic and Familial ALS. Cell Press Neuron. DOI: 10.1016/j.neuron.2014.01.011  

  • February 7, 2014
  • 06:15 PM
  • 187 views

Discovery opens up new areas of microbiology, evolutionary biology

by Perikis Livas in Tracing Knowledge

A team of researchers led by Virginia Tech and University of California, Berkeley, scientists has discovered that a regulatory process that turns on photosynthesis in plants at daybreak likely developed on Earth in ancient microbes 2.5 billion years ago, long before oxygen became available.... Read more »

Dwi Susanti, Joshua H. Wong, William H. Vensel, Usha Loganathan, Rebecca DeSantis, Ruth A. Schmitz, Monica Balser, Bob B. Buchanan, & Biswarup Mukhopadhyay. (2014) Thioredoxin targets fundamental processes in a methane-producing archaeon, Methanocaldococcus jannaschii. PNAS Proceedings of the National Academy of Sciences. DOI: 10.1073/pnas.1324240111  

  • February 4, 2014
  • 05:40 PM
  • 190 views

Single gold nanoparticle acts as a lighthouse

by Perikis Livas in Tracing Knowledge

Researchers at FOM Institute AMOLF have discovered a novel method to create directional beams of light on the nanoscale based on a simple single-element nanoantenna design. The insights from this work could be used in the future to design very small light directors for nanoscale sensing applications in biology and photonics. The research was published on 2 February 2014 in the journal Nature Communications.... Read more »

Coenen T, Bernal Arango F, Femius Koenderink A, & Polman A. (2014) Directional emission from a single plasmonic scatterer. Nature communications, 3250. PMID: 24488237  

  • February 3, 2014
  • 04:56 PM
  • 185 views

How a Shape-shifting DNA-repair Machine Fights Cancer

by Perikis Livas in Tracing Knowledge

Berkeley Lab’s Advanced Light Source reveals inner-workings of essential protein found throughout life.... Read more »

Shibata A, Moiani D, Arvai AS, Perry J, Harding SM, Genois MM, Maity R, van Rossum-Fikkert S, Kertokalio A, Romoli F.... (2014) DNA Double-Strand Break Repair Pathway Choice Is Directed by Distinct MRE11 Nuclease Activities. Molecular cell, 53(1), 7-18. PMID: 24316220  

Rajashree A Deshpande, Gareth J Williams, Oliver Limbo, R Scott Williams, Jeff Kuhnlein,, Ji‐Hoon Lee, Scott Classen, Grant Guenther, Paul Russell, John A Tainer.... (2014) ATP‐driven Rad50 conformations regulate DNA tethering, end resection, and ATM checkpoint signaling. The EMBO journal. DOI: 10.1002/embj.201386100  

  • January 30, 2014
  • 08:26 AM
  • 234 views

Scientists reveal the pecking order of musicians playing in a group

by Perikis Livas in Tracing Knowledge

Does Charlie Watts lead the Rolling Stones from the drums? Did Jacqueline du Pré lead Daniel Barenboim from the cello? These questions may in the future have answers thanks to an intriguing model developed by a team of scientists from the Universities of Birmingham, Münster and London’s Royal Academy of Music, in research published today (Wednesday 29th January 2014) in the Royal Society Journal Interface. ... Read more »

Alan M. Wing, Satoshi Endo, Adrian Bradbury, Dirk Vorberg. (2014) Optimal feedback correction in string quartet synchronization. J. R. Soc. Interface, 11(93). DOI: 10.1098/rsif.2013.1125  

  • January 29, 2014
  • 03:47 PM
  • 148 views

The 425-million-year-old ‘bottle brush’ beastie

by Perikis Livas in Tracing Knowledge

Palaeobiologists at Oxford University have discovered a new fossil arthropod, christened Enalikter aphson, in 425-million-year-old rocks in Herefordshire. It belongs to an extinct group of marine-dwelling ‘short-great-appendage’ arthropods, Megacheira, defined by their claw-like front limbs.... Read more »

Siveter DJ, Briggs DE, Siveter DJ, Sutton MD, Legg D, & Joomun S. (2014) A Silurian short-great-appendage arthropod. Proceedings. Biological sciences / The Royal Society, 281(1778), 20132986. PMID: 24452026  

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