Perikis Livas

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Tracing Knowledge
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  • May 15, 2014
  • 10:42 AM
  • 332 views

Study finds hazardous flame retardants in preschool, child care settings

by Perikis Livas in Tracing Knowledge

A new study of preschools and day care centers finds that flame retardants are prevalent indoors, potentially exposing young children to chemicals known to be hazardous.

-News release May 15, 2014 By Sarah Yang UC Berkeley... Read more »

Bradman, A., Castorina, R., Gaspar, F., Nishioka, M., Colón, M., Weathers, W., Egeghy, P., Maddalena, R., Williams, J., Jenkins, P.... (2014) Flame retardant exposures in California early childhood education environments. Chemosphere. DOI: 10.1016/j.chemosphere.2014.02.072  

  • May 15, 2014
  • 07:25 AM
  • 327 views

Birth of a star in double-quick time

by Perikis Livas in Tracing Knowledge

Astronomers have undertaken a new survey of the plane of our Milky Way and discovered a large quantity of cold, dense clumps of gas and dust, apparently the cradles of massive stars. A team headed by Timea Csengeri from the Max Planck Institute for Radio Astronomy in Bonn has now used the map, which was obtained by the APEX telescope at a wavelength of 0.87 millimetres, to estimate the time scale for the formation of stars.

The result: the process seems to proceed very rapidly, with massive s........ Read more »

T. Csengeri, J. S. Urquhart, F. Schuller, F. Motte, S. Bontemps, F. Wyrowski, K. M. Menten, L. Bronfman, H. Beuther, Th. Henning.... (2013) The ATLASGAL survey: a catalog of dust condensations in the Galactic plane. Cornell University Library. arXiv: 1312.0937v2

  • May 13, 2014
  • 04:57 AM
  • 311 views

Ice-loss moves the Earth 250 miles beneath our feet

by Perikis Livas in Tracing Knowledge

At the surface, Antarctica is a motionless and frozen landscape. Yet hundreds of miles down the Earth is moving at a rapid rate, new research has shown.

The study, led by Newcastle University, UK, and published this week in Earth and Planetary Science Letters, explains for the first time why the upward motion of the Earth’s crust in the Northern Antarctic Peninsula is currently taking place so quickly.

-News release May 12, 2014 Newcastle University... Read more »

Nield, G., Barletta, V., Bordoni, A., King, M., Whitehouse, P., Clarke, P., Domack, E., Scambos, T., & Berthier, E. (2014) Rapid bedrock uplift in the Antarctic Peninsula explained by viscoelastic response to recent ice unloading. Earth and Planetary Science Letters, 32-41. DOI: 10.1016/j.epsl.2014.04.019  

  • May 9, 2014
  • 08:45 AM
  • 374 views

Berkeley Lab Develops Nanoscope to Probe Chemistry on the Molecular Scale

by Perikis Livas in Tracing Knowledge

New technique uses infrared synchrotron light and atomic force microscopy to study batteries, cell membranes, stardust, and other complex systems on the nanoscale.

News release May 07, 2014 By Kate Greene Lawrence Berkeley National Laboratory... Read more »

Bechtel, H., Muller, E., Olmon, R., Martin, M., & Raschke, M. (2014) Ultrabroadband infrared nanospectroscopic imaging. Proceedings of the National Academy of Sciences. DOI: 10.1073/pnas.1400502111  

  • May 9, 2014
  • 05:40 AM
  • 380 views

At the frontiers of magnetism

by Perikis Livas in Tracing Knowledge

The smallest possible magnets are the size of a single atom. Now scientists have reached the limits of optimisation of the tiny particles: they have created single atom magnets that are as strong and stable as is physically possible for the class of atoms used.

_Research May 09, 2014 By Fabio Bergamin ETH Zurich

Observed live with x-ray laser: electricity controls magnetism
_Paul Scherrer Institute... Read more »

Rau, I., Baumann, S., Rusponi, S., Donati, F., Stepanow, S., Gragnaniello, L., Dreiser, J., Piamonteze, C., Nolting, F., Gangopadhyay, S.... (2014) Reaching the Magnetic Anisotropy Limit of a 3d Metal Atom. Science. DOI: 10.1126/science.1252841  

  • May 6, 2014
  • 12:14 PM
  • 311 views

Chitosan Bioplastic

by Perikis Livas in Tracing Knowledge

A fully degradable bioplastic isolated from shrimp shells could provide a solution to planet-clogging plastics

Environment & Sustainability Harvard’s Wyss Institute... Read more »

  • May 2, 2014
  • 04:03 AM
  • 653 views

Entire Star Cluster Thrown Out of its Galaxy

by Perikis Livas in Tracing Knowledge

The galaxy known as M87 has a fastball that would be the envy of any baseball pitcher. It has thrown an entire star cluster toward us at more than two million miles per hour. The newly discovered cluster, which astronomers named HVGC-1, is now on a fast journey to nowhere. Its fate: to drift through the void between the galaxies for all time.

News release April 30, 2014 HARVARD-SMITHSONIAN CENTER FOR ASTROPHYSICS... Read more »

Nelson Caldwell, Jay Strader, Aaron J. Romanowsky, Jean P. Brodie, Ben Moore, Jurg Diemand, & Davide Martizzi. (2014) A Globular Cluster Toward M87 with a Radial Velocity . Cornell University Library. arXiv: 1402.6319v2

  • May 1, 2014
  • 03:45 PM
  • 440 views

Shockwave findings set to rewrite scientific theories

by Perikis Livas in Tracing Knowledge

For the first time an international team of astronomers has measured circular polarisation in the bright flash of light from a dying star collapsing to a black hole, giving insight into an event that happened almost 11 billion years ago.

New insights into gamma-ray Burst afterglows-Niels Bohr Institute University of Copenhagen

Astronomers observe corkscrew nature of light from a distant black hole - Curtin University

Study of Gamma-Ray Bursts afterglow surprises scientists -University o........ Read more »

Wiersema, K., Covino, S., Toma, K., van der Horst, A., Varela, K., Min, M., Greiner, J., Starling, R., Tanvir, N., Wijers, R.... (2014) Circular polarization in the optical afterglow of GRB 121024A. Nature. DOI: 10.1038/nature13237  

  • May 1, 2014
  • 02:01 PM
  • 622 views

Search for life on exoplanets more difficult than thought

by Perikis Livas in Tracing Knowledge

A new study from the University of Toronto Scarborough suggests the search for life on planets outside our solar system may be more difficult than previously thought.

The study, authored by a team of international researchers led by UTSC Assistant Professor Hanno Rein from the Department of Physical and Environmental Science, finds the method used to detect biosignatures on such planets, known as exoplanets, can produce a false positive result.

News release Apr 29, 2014 By Don Campbell Uni........ Read more »

  • May 1, 2014
  • 01:08 PM
  • 491 views

Neanderthals were not inferior to modern humans

by Perikis Livas in Tracing Knowledge

If you think Neanderthals were stupid and primitive, it’s time to think again.

The widely held notion that Neanderthals were dimwitted and that their inferior intelligence allowed them to be driven to extinction by the much brighter ancestors of modern humans is not supported by scientific evidence, according to a researcher at the University of Colorado Boulder.

News release April 30, 2014 University of Colorado Boulder... Read more »

  • April 30, 2014
  • 08:17 AM
  • 380 views

The scent of a man

by Perikis Livas in Tracing Knowledge

Mice and rats stressed by male experimenters; reaction may skew research findings.

Scientists’ inability to replicate research findings using mice and rats has contributed to mounting concern over the reliability of such studies.

News release April 28, 2014 McGill University... Read more »

Sorge, R., Martin, L., Isbester, K., Sotocinal, S., Rosen, S., Tuttle, A., Wieskopf, J., Acland, E., Dokova, A., Kadoura, B.... (2014) Olfactory exposure to males, including men, causes stress and related analgesia in rodents. Nature Methods. DOI: 10.1038/nmeth.2935  

  • April 27, 2014
  • 04:18 PM
  • 528 views

Metabolism may have started in our early oceans before the origin of life

by Perikis Livas in Tracing Knowledge

The chemical reactions behind metabolism – the processes that occur within all living organisms in order to sustain life – may have formed spontaneously in the Earth’s early oceans, according to research published today.

The basic architecture of the modern metabolic network could have originated from the chemical and physical constraints that existed on Earth billions of years ago

__Markus Ralser

Research News April 25, 2014 University of Cambridge... Read more »

  • April 27, 2014
  • 07:23 AM
  • 350 views

What Lies Beneath Modern New England ?

by Perikis Livas in Tracing Knowledge

Mountain-Building and the End of An Ancient Ocean

When and where did the ancient Iapetus Ocean suture (the most fundamental Appalachian structure) form?
Is part of New England made up of ancient African-derived rocks?
What is the Moretown terrane?
This new GEOLOGY study by researchers from Harvard, Middlebury College, Boise State University, and Williams College finds new evidence for an earlier closing of the Iapetus that is farther west than previous studies have reported.





A........ Read more »

  • April 25, 2014
  • 05:20 AM
  • 686 views

Cosmic illusion revealed

by Perikis Livas in Tracing Knowledge

Kashiwa Japan – A team of researchers led by Robert Quimby at the Kavli Institute for the Physics and Mathematics of the Universe (Kavli IPMU) has announced the discovery of a galaxy that magnified a background, Type Ia supernova thirtyfold through gravitational lensing. This is the first example of strong gravitational lensing of a supernova confirms the team’s previous explanation for the unusual properties of this supernova.



News release April 25, 2014 Kavli Institute for ........ Read more »

Quimby, R., Oguri, M., More, A., More, S., Moriya, T., Werner, M., Tanaka, M., Folatelli, G., Bersten, M., Maeda, K.... (2014) Detection of the Gravitational Lens Magnifying a Type Ia Supernova. Science, 344(6182), 396-399. DOI: 10.1126/science.1250903  

  • April 10, 2014
  • 10:44 AM
  • 645 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
  • 464 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
  • 473 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
  • 950 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
  • 355 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
  • 534 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  

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