News tagged with resistivity
Noxious nanotech: Water-borne nanomaterials promote multidrug-resistance gene transfer
(PhysOrg.com) -- The arms race between effective antibiotic prophylaxis and closely related strains or species of bacteria is continually escalating. Bacteria can quickly develop genetic resistance to a range ...
Ultrafast laser helps to better understand high-temperature superconductors
Superconductivity, in which electric current flows without resistance, promises huge energy savings from low-voltage electric grids with no transmission losses, superefficient motors and generators, ...
May 31, 2012 |
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Tomato genome fully sequenced
For the first time, the genome of the tomato, Solanum lycopersicum, has been decoded, and it becomes an important step toward improving yield, nutrition, disease resistance, taste and color of the tomato and ...
May 30, 2012 |
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Researchers find possible evidence of Majorana fermions
(Phys.org) -- Researchers working out of Delft University of Technology in the Netherlands have constructed a device that appears to offer some evidence of the existence of Majorana fermions; the elusive particles ...
Honeycombs of magnets could lead to new type of computer processing
Scientists have taken an important step forward in developing a new material using nano-sized magnets that could ultimately lead to new types of electronic devices, with greater capacity than is currently ...
Mar 30, 2012 |
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Physicists surprised by disappearing and reappearing superconductivity in iron selenium chalcogenides
(PhysOrg.com) -- Superconductivity is a rare physical state in which matter is able to conduct electricity -- maintain a flow of electrons -- without any resistance. This phenomenon can only be found in certain ...
Feb 22, 2012 |
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Rice's 'quantum critical' theory gets experimental boost
New evidence this week supports a theory developed five years ago at Rice University to explain the electrical properties of several classes of materials -- including unconventional superconductors -- that ...
Jan 11, 2012 |
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Scientists map and sequence genome of switchgrass relative foxtail millet
A newly published genetic sequence and map of foxtail millet, a close relative of switchgrass and an important food crop in Asia, is giving scientists working to increase biofuel and crop yields a powerful new tool.
Jun 01, 2012 |
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Light-induced delivery of nitric oxide eradicates drug-resistant bacteria
Researchers at the University of California, Santa Cruz, have developed a novel approach for eradicating drug-resistant bacteria from wounds and skin infections, using light to trigger the controlled release of nitric oxide. ...
May 30, 2012 |
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Teenager reportedly finds solution to 350 year old math and physics problem
(Phys.org) -- In Isaac Newton's Principia Mathematica published in 1687, the man many consider the most brilliant mathematician of all time used a mathematical formula to describe the path taken by an obj ...
How one strain of MRSA becomes resistant to last-line antibiotic
Researchers have uncovered what makes one particular strain of methicillin-resistant Staphylococcus aureus (MRSA) so proficient at picking up resistance genes, such as the one that makes it resistant to vancomycin, the last ...
May 22, 2012 |
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Japanese researchers using particle accelerator to breed salt resistant rice
(Phys.org) -- Japanese researchers at the Riken Nishina Centre for Accelerator-Based Science have been using their particle accelerator to cause mutations in rice for over two decades with the aim of breeding ...
Handheld plasma flashlight rids skin of bacteria instantly
A group of Chinese and Australian scientists, including CSIRO, have developed a handheld, battery-powered plasma-producing device that can rid skin of bacteria in an instant. The handheld plasma flashlight could be used in ...
Apr 26, 2012 |
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Researchers have a natural sidekick that may resolve the antibiotic-resistant bacteria dilemma
Antibiotic-resistant bacteria continue to be a global concern with devastating repercussions, such as increased healthcare costs, potential spread of infections across continents, and prolonged illness.
Apr 25, 2012 |
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Bean bugs found to harbor bacteria that keep them safe from an insecticide
(Phys.org) -- Conventional wisdom says that in order for a species of insect to develop resistance to an antibiotic, several generations have to pass, whereby genes from those that have some natural resistance ...