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Comment by Dr. Krishna Kumari Challa on December 10, 2014 at 9:07am

New drug eliminates the malaria parasite within 48 hours in mice

A promising new compound tricks the immune system into destroying red blood cells infected with the malaria parasite in just two days. Trials are now planned in humans.
An international team of scientists has developed an anti-malarial compound that triggers the immune system to destroy red blood cells infected by malaria, but leaves healthy cells unharmed.

The compound, known as (+)-SJ733, has already been tested in mice, and a single dose has been shown to kill 80 percent of malaria parasites in the bloodstream within 24 hours. Within 48 hours the parasite was completely undetectable.
http://www.sciencedaily.com/releases/2014/12/141205175027.htm

Comment by Dr. Krishna Kumari Challa on December 10, 2014 at 8:12am

Magnet Design by Integration of Layer and Chain Magnetic Systems in a π-Stacked Pillared Layer Framework

http://onlinelibrary.wiley.com/doi/10.1002/anie.201410057/abstract;...

Magnets Without Metals A three-dimensional organic framework could help researchers make magnetic materials without metals or metal oxides.

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Comment by Dr. Krishna Kumari Challa on December 8, 2014 at 7:35am

Vaccine myths - busted:

16 Years Ago, A Doctor Published A Study. It Was Completely Made Up, And It Made Us All Sicker.

Once upon a time, a scientist named Dr. Andrew Wakefield published in the medical journal The Lancet that he had discovered a link between autism and vaccines.

After years of controversy and making parents mistrust vaccines, along with collecting $674,000 from lawyers who would benefit from suing vaccine makers, it was discovered he had made the whole thing up. The Lancet publicly apologized and reported that further investigation led to the discovery that he had fabricated everything.

In the intervening years, millions have been spent on studying this further to see if there was anything that could connect autism and vaccines.

Read scientific facts about vaccines here:

http://www.upworthy.com/16-years-ago-a-doctor-published-a-study-it-...

Comment by Dr. Krishna Kumari Challa on December 8, 2014 at 7:11am

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Comment by Dr. Krishna Kumari Challa on December 7, 2014 at 7:29am

Comment by Dr. Krishna Kumari Challa on December 7, 2014 at 6:54am

Comment by Dr. Krishna Kumari Challa on December 7, 2014 at 6:44am

Physicists achieve superconductivity at room temperature

German researchers have figured out how to put a piece of ceramic in a superconducting state at room temperature - no cooling required.
Physicists from the Max Planck Institute for the Structure and Dynamics of Matter have kept a piece of ceramic in a superconducting state, disproving the widely-held assumption that materials need to be cooled to temperatures of at least -140 degrees Celsius to achieve superconductivity.

Superconducting materials have the potential to change everything that relies on electrical power, such as power grids, transportation, and renewable energy sources. This is because they’re able to transport electric currents without any resistance, which means they’re incredibly efficient and cost-effective to run. Except right now, they’re not, because in order to get a material to a superconducting state, it needs to be cooled to near absolute zero temperatures, which has really hampered the potential of this technology up to this point.
Over the past few decades, scientists have come to realise that metals cooled to temperatures of around -273 degrees Celsius using liquid nitrogen or helium aren’t the only materials capable of reaching a superconducting state. During the 1980s, it was discovered that ceramic materials can reach this state at significantly higher (and yet still extremely cold) temperatures of around -200 degrees Celsius. This is why they’re called high-temperature superconductors.
One such ceramic material, called yttrium barium copper oxide (YBCO), has since been singled out, thanks to its great potential for use in a range of technical applications such as superconducting cables, electrical motors, and generators. Made from super-thin double layers of a copper oxide material stacked in-between layers made from barium, copper and oxygen, this material is designed to allow the bonding of electrons into what’s known as Cooper pairs.
These Cooper pairs of electrons are able to ‘tunnel’ between the alternating layers "like ghosts can pass through walls, figuratively speaking - a typical quantum effect,” they report, but it was thought this could only occur at super-cooled temperatures.

But then the physicists from Max Planck decided to see what would happen if they irradiated the YBCO ceramic material with infrared laser pulses. They found that for a fraction of a second, the ceramic becomes superconducting at room temperature. And when we say “a fraction of a second”, they mean a fraction. “It was only a few millionths of a millisecond” . "That's a very, very brief lifespan for our amazing new room temperature superconductor. However, the successful experiment is proof that such a thing is possible."
http://phys.org/news/2014-12-superconductivity-cooling.html

Comment by Dr. Krishna Kumari Challa on December 6, 2014 at 8:27am

New Twist Found in the Story of Life’s Start

All life on Earth is made of molecules that twist in the same direction. New research reveals that this may not always have been so.
http://www.quantamagazine.org/20141126-why-rna-is-right-handed/

Comment by Dr. Krishna Kumari Challa on December 6, 2014 at 8:16am

Evidence of Polyethylene Biodegradation by Bacterial Strains from the Guts of Plastic-Eating Waxworms
Abstract: Polyethylene (PE) has been considered nonbiodegradable for decades. Although the biodegradation of PE by bacterial cultures has been occasionally described, valid evidence of PE biodegradation has remained limited in the literature. We found that waxworms, or Indian mealmoths (the larvae of Plodia interpunctella), were capable of chewing and eating PE films. Two bacterial strains capable of degrading PE were isolated from this worm’s gut, Enterobacter asburiae YT1 and Bacillus sp. YP1. Over a 28-day incubation period of the two strains on PE films, viable biofilms formed, and the PE films’ hydrophobicity decreased. Obvious damage, including pits and cavities (0.3–0.4 μm in depth), was observed on the surfaces of the PE films using scanning electron microscopy (SEM) and atomic force microscopy (AFM). The formation of carbonyl groups was verified using X-ray photoelectron spectroscopy (XPS) and microattenuated total reflectance/Fourier transform infrared (micro-ATR/FTIR) imaging microscope. Suspension cultures of YT1 and YP1 (108 cells/mL) were able to degrade approximately 6.1 ± 0.3% and 10.7 ± 0.2% of the PE films (100 mg), respectively, over a 60-day incubation period. The molecular weights of the residual PE films were lower, and the release of 12 water-soluble daughter products was also detected. The results demonstrated the presence of PE-degrading bacteria in the guts of waxworms and provided promising evidence for the biodegradation of PE in the environment.
http://pubs.acs.org/doi/abs/10.1021/es504038a?source=cen

Comment by Dr. Krishna Kumari Challa on December 5, 2014 at 7:26am

Study proves we CAN see ‘invisible’ infrared light

Our basic human eyes, usually deprived of the majority of the wavelengths in the world, are actually capable of detecting infrared light, new research proves. We just need a rapidly-pulsing laser to beam it into our retinas.
Humans are notoriously limited when it comes to eyesight - while we can see all the beautiful colours of the rainbow within our visible spectrum, wavelengths such as X-rays, radio waves and infrared are all invisible to us.

But now scientists have proved that our retina cells can see infrared light waves after all, we just need them to hit our eyes in the right way. The research will now help scientists to better test people's eyesight and potentially even improve it.

The researchers, from Washington University School of Medicine in St Louis, tested cells from retinas of mice and humans using powerful lasers emitting pulses of infrared light. They found that when the light-sensing cells of retinas get a double hit of infrared energy, our eyes are able to detect light that falls outside our visible spectrum.
We're using what we learned in these experiments to try to develop a new tool that would allow physicians to not only examine the eye but also to stimulate specific parts of the retina to determine whether it's functioning properly," said senior researcher Vladimir J. Kefalov in a press release. "We hope that ultimately this discovery will have some very practical applications.
Human infrared vision is triggered by two-photon chromophore isomerization
http://www.pnas.org/content/early/2014/11/25/1410162111

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