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June. 29, 2011
Volume: II
Number: 25
 
National Society of Black Physicists    African Physical Society    South African Institute of Physics   African Astronomical Society   
 
 
Southern Africa Large Telescope users find strange new planetary system
PhysOrg.com    Share    Share on FacebookTwitterShare on LinkedinE-mail article
Using the Southern African Large Telescope, a team of U.K. astronomers have discovered a strange planetary system consisting of two giant planets orbiting two stars, one a white dwarf and the other a red dwarf. Due to their close proximity, the gravity of the more massive, but much more compact white dwarf star is constantly accreting material from the surface of the red dwarf in a continuous stream. This stream of material collides with the surface of the white dwarf, where it is heated to millions of degrees Kelvin, flooding the entire planetary system with enormous amounts of deadly X-rays. More

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Overcoming gender barriers in science: Facts and figures
SciDev.net    Share    Share on FacebookTwitterShare on LinkedinE-mail article
SciDev.Net presents spotlight articles on overcoming gender barriers in science, including an article written by South Africa's Minister of Science, Naledi Pandor, as well as an article by Emily Ngubia Kuria that argues that more girls will study natural sciences if social norms are challenged and that there are no innate barriers. Jeanne Therese H. Andres, a Ph.D candidate at the University of Cambridge charts the obstacles and how to overcome them. More

Using lasers to measure magnetic fields
SPIE Newsroom    Share    Share on FacebookTwitterShare on LinkedinE-mail article
Measurement of magnetic fields permits identification of features below the earth's surface, with applications ranging from the detection of unexploded ordnance and buried hazardous waste containers to oil and mineral exploration. A technique borrowed from astronomy employs ground-based apparatus and sodium in the upper atmosphere to determine geomagnetic fields with high precision and at relatively low cost. More

Reflecting surfaces of novel Cherenkov telescopes
SPIE Newsroom    Share    Share on FacebookTwitterShare on LinkedinE-mail article
Imaging atmospheric Cherenkov telescopes are cutting-edge instruments for studying astronomical sources that emit very high energy gamma rays. The Cherenkov Telescope Array is an ambitious worldwide project to build many IACTs whose reflecting area will approach about 10,000m2 spread over a few square kilometers. A new mirror-manufacturing process shows promise for producing the strongly aspherical mirrors suited to the next generation of ground-based gamma-ray astronomical telescopes. Teams at the University of Namibia and North-West University in South Africa are working on proposals to host the CTA. More


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Astronomers discover new cancer therapy
Science Daily    Share    Share on FacebookTwitterShare on LinkedinE-mail article
In studying how chemical elements emit and absorb radiation inside stars and around black holes, a team of Ohio State University astronomers discovered that heavy metals such as iron emit low-energy electrons when exposed to X-rays at specific energies. Their discovery raises the possibility that implants made from certain heavy elements could enable doctors to obliterate tumors with low-energy electrons, while exposing healthy tissue to much less radiation than is possible today. More

Fermilab experiment weighs in on neutrino mystery
Fermi National Accelerator Laboratory    Share    Share on FacebookTwitterShare on LinkedinE-mail article
Scientists of the MINOS experiment at Fermilab have announced results from a search for a rare phenomenon, the transformation of muon neutrinos into electron neutrinos. The result is consistent with and significantly constrains a measurement reported 10 days ago by the Japanese T2K experiment, which announced an indication of this type of transformation. The results of these two experiments could have implications for our understanding of the role that neutrinos may have played in the evolution of the universe. More



Physicists find hidden temporal order in stock market volatility
American Institute of Physics    Share    Share on FacebookTwitterShare on LinkedinE-mail
article
When analyzed by standard statistical methods, the time series of the daily return of financial indices appear to behave as Markov random series with no apparent temporal order or memory. This empirical result seems to be counter intuitive since investors are influenced by both short and long term past market behaviors. A team of Israeli physicists has revealed the existence of hidden temporal order in the volatility and very high correlations between the volatility and the magnitude of price variations. This marks the first time hidden temporal order has been found in these market "human factors." More

Physicists map phase changes in quark-gluon plasma
Physorg.com    Share    Share on FacebookTwitterShare on LinkedinE-mail article
After the first few microseconds of the universe's history, the quark-gluon plasma cooled to form protons and neutrons and normal matter. Combining results of quantum chromodynamics, lattice gauge theory and results from the Relativistic Heavy Ion Collider, an international team of experimentalists and theorists have now established the temperature boundary where ordinary matter and quark matter cross over and change phase. More

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From seawater to freshwater with a nanotechnology filter
Physics World    Share    Share on FacebookTwitterShare on LinkedinE-mail article
Carbon nanotubes could play in the desalination of water, providing a possible solution to the problem of the world's ever-growing population demanding more and more fresh drinking water. More

Egypt announces ambitious science spending plan
SciDev.net    Share    Share on FacebookTwitterShare on LinkedinE-mail article
Egypt's government has announced an ambitious plan for a 10-fold increase in spending on scientific research within the next three years, at an event where the prime minister declared science as a top priority. It plans to raise the percentage of gross domestic product spent on scientific research from 0.23 percent to 2 percent. But critics say this is too much, too fast. More
South African Institute of Physics set to meet July 12-15

The South African Institute of Physics will convene its 2011 annual meeting July 12 at Pretoria's Saint George Hotel. The scientific program includes tracks in condensed matter and materials physics; nuclear, particle and radiation physics; lasers, optics and spectroscopy; astrophysics; space science; physics education; applied and industrial physics; and theoretical and computational physics.

The program also includes a winter school in computational physics and a workshop on biophysics.

The abstract submission deadline for short papers is July 4.

More information is available at the conference website.


High hopes for Ghana's new science policy
SciDev.net    Share    Share on FacebookTwitterShare on LinkedinE-mail article
Ghana hopes to finalize its draft science, technology and innovation policy, which has been undergoing consultation for two years. The country appointed a science minister in 2009 after three years without one, and re-established its Ministry of Environment, Science and Technology, as part of President John Evans Atta Mills' drive to restore the science sector. More

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NASA seeks comments on proposed program: Astrophysics Technology Fellowships for Early Career Researchers
NSPIRES    Share    Share on FacebookTwitterShare on LinkedinE-mail article
NASA is seeking comments on the solicitation to the proposed program: Astrophysics Technology Fellowships for Early Career Researchers. The program's goals would be to give early career researchers the opportunity to develop the skills necessary to lead astrophysics flight instruments/projects and become principal investigators of future astrophysics missions; to develop innovative technologies that have the potential to enable major scientific breakthroughs; and to foster new talent by putting early-career instrument builders on a trajectory towards long-term positions. Comments are due July 18. More



NSB seeks input on proposed merit review criteria revision and principles
NSBP    Share    Share on FacebookTwitterShare on LinkedinE-mail article
Over the past year, the National Science Board has been conducting a review of the National Science Foundation's merit review criteria (Intellectual Merit and Broader Impacts). At the board's May meeting, the NSB Task Force on Merit Review proposed a revision of the two merit review criteria, clarifying their intent and how they are to be used in the review process. In addition, the task force identified a set of important underlying principles upon which the merit review criteria should be based. We now seek your input on the proposed revision and principles. More



National Society of Black Physicists jobs board postings
NSBP    Share    Share on FacebookTwitterShare on LinkedinE-mail article
Assistant/Associate Professor
South African Research Chairs
Project Officer: IAU Global Office of Astronomy for Development (3 Year Contract)
Director of Physics Teaching Laboratories
Faculty Position in Theoretical Solid State Physics
AIMS Senegal Tutor/Teaching Assistant
APS Scholarship Program for Minority Undergraduate Physics Majors
National Astrophysics and Space Science Program
Visiting Professor
Postdoctoral Research Associate Positions
Director, Lawrence Livermore National Lab




Latest research from Journal of Physics: Condensed Matter
Journal of Physics: Condensed Matter    Share    Share on FacebookTwitterShare on LinkedinE-mail article

A density functional theory study of Mn nanowires on the Si(001) surface

Optimized transport properties of LaAlO3/SrTiO3 heterointerfaces by variation of pulsed laser fluence

Enhanced silicon oxidation on titanium-covered Si(001)

Crowding of polymer coils and demixing in nanoparticle–polymer mixtures

Exploration of the shapes of double-walled vesicles with a confined inner membrane
More

Latest research from Brazilian Journal of Physics
Brazilian Journal of Physics    Share    Share on FacebookTwitterShare on LinkedinE-mail article
The Brazilian Journal of Physics, formerly named Revista Brasileira de Física, is an official publication of the Sociedade Brasileira de Física. It has been edited by the SBF since 1971 and is now being published in partnership with the Springer Group.

Liquefaction of gases and discovery of superconductivity: 2 very closely scientific achievements in low temperature physics

The cold dark matter model with cosmological constant and the flatness constraint

Aspects of nonmetricity in gravity theories

Conformal field theory with 2 kinds of bosonic fields and 2 linear dilatons

First-principles study of carbon chemisorption on γ-Fe(111) surface

Observational consequences of a dark interaction model

Pulsar binary Systems in a nonsymmetric theory of gravitation II. Dipole radiation

More
 

 
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