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<title>APS Science Highlights</title>
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<description>Highlights of research occurring at the Advanced Photon Source at Argonne National Laboratory.</description>
<language>en-us</language>
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<item><link>http://www.aps.anl.gov/Science/Highlights/Content/APS_SCIENCE_20080505B.php</link>

<guid>http://www.aps.anl.gov/Science/Highlights/2007/Content/APS_SCIENCE_20080505B.php</guid>

<title>An X-ray Vortex on the Horizon?</title>

<pubDate>MAY 5, 2008</pubDate>

<description><![CDATA[Argonne physicists have shown theoretically that the harmonics of the x-ray radiation from a helical undulator have the twisted-phase front and singular core characteristic of an optical vortex, a tornado-like state of light that carries orbital angular momentum. An &quot;x-ray vortex&quot; beam has the capability to make tiny particles swirl in its field and may be useful for the exploration of previously inaccessible quadrupole and other electronic transitions. Until now, production of x-ray vortices has required inefficient optics that must be tuned to the x-ray beam energy.]]></description></item>

<item><link>http://www.aps.anl.gov/Science/Highlights/Content/APS_SCIENCE_20080505.php</link>

<guid>http://www.aps.anl.gov/Science/Highlights/2007/Content/APS_SCIENCE_20080505.php</guid>

<title>A Protein that Repairs Damage to Cancer Cells</title>

<pubDate>MAY 5, 2008</pubDate>

<description><![CDATA[University of Chicago scientists using two x-ray beamlines at the Argonne Advanced Photon Source have shown how a protein detects and repairs damage in human cells; the study raises the possibility of designing a molecule that could interfere with the repair process, making a certain type of cancer treatment more effective.  ]]></description></item>

<item><link>http://www.aps.anl.gov/Science/Highlights/Content/APS_SCIENCE_20080424B.php</link>

<guid>http://www.aps.anl.gov/Science/Highlights/2007/Content/APS_SCIENCE_20080424B.php</guid>

<title>Scientists Discover How Nanocluster Contaminants Increase Risk of Spreading</title>

<pubDate>APRIL 24, 2008</pubDate>

<description><![CDATA[Scientists have known that nanometer-size clusters of plutonium oxide are responsible for plutonium contamination spreading further in groundwater than expected, increasing the risk of sickness in humans and animals. But the nature of the clusters remained a mystery until researchers using x-ray beams from the Argonne Advanced Photon Source were able to solve the structure of the clusters and begin to unlock their secrets.  ]]></description></item>

<item><link>http://www.aps.anl.gov/Science/Highlights/Content/APS_SCIENCE_20080424.php</link>

<guid>http://www.aps.anl.gov/Science/Highlights/2007/Content/APS_SCIENCE_20080424.php</guid>

<title>How Two Drops Become One</title>

<pubDate>APRIL 24, 2008</pubDate>

<description><![CDATA[Scientists from Argonne National Laboratory, using an x-ray beamline at the Argonne Advanced Photon Source, have found a window into the process of water drop coalescence, employing ultrafast pulses of full-spectrum, high-intensity x-rays to capture with unprecedented clarity and definition the moment of two water droplets becoming one.  ]]></description></item>

<item><link>http://www.aps.anl.gov/Science/Highlights/Content/APS_SCIENCE_20080410.php</link>

<guid>http://www.aps.anl.gov/Science/Highlights/2007/Content/APS_SCIENCE_20080410.php</guid>

<title>Mobile RNA is Poised and Ready</title>

<pubDate>APRIL 10, 2008</pubDate>

<description><![CDATA[Research at two Advanced Photon Source x-ray beamlines has produced a new picture of a genetic parasite isolated from a deep-sea bacterium that is helping researchers see how certain specialized segments of RNA escape from their positions in the genome and invade new RNA or DNA. The mobility of these genetic elements has had a profound influence on evolution, promoting diversity among the world's most ancient organisms.  ]]></description></item>

<item><link>http://www.aps.anl.gov/Science/Highlights/Content/APS_SCIENCE_20080404.php</link>

<guid>http://www.aps.anl.gov/Science/Highlights/2007/Content/APS_SCIENCE_20080404.php</guid>

<title>Glass Does a Double-Take</title>

<pubDate>APRIL 4, 2008</pubDate>

<description><![CDATA[How and why glass forms remains a scientific mystery. But experiments by scientists from Yale University and Argonne using the Advanced Photon Source have shown that, sometimes, heating a liquid can also turn it into a glass. By confirming predictions from recent theories about the transition of liquids to glass, their work might make glass a bit less mysterious.  ]]></description></item>

<item><link>http://www.aps.anl.gov/Science/Highlights/Content/APS_SCIENCE_20080319.php</link>

<guid>http://www.aps.anl.gov/Science/Highlights/2007/Content/APS_SCIENCE_20080319.php</guid>

<title>Welcoming a New Family of Superconductors</title>

<pubDate>APRIL 3, 2008</pubDate>

<description><![CDATA[A new family of superconductors has been discovered by an international research team using the Argonne Advanced Photon Source. This research could eventually lead to the design of better superconducting materials for a wide variety of industrial uses.]]></description></item>

<item><link>http://www.aps.anl.gov/Science/Highlights/Content/APS_SCIENCE_20080226C.php</link>

<guid>http://www.aps.anl.gov/Science/Highlights/2007/Content/APS_SCIENCE_20080226C.php</guid>

<title>Assembling Nanoparticles the Easy DNA-Way</title>

<pubDate>February 26, 2008</pubDate>

<description><![CDATA[Researchers from Northwestern University and the U.S. Department of Energy&#8217;s Argonne National Laboratory have produced a system that can be used to guide the assembly of colloidal crystals&#8212;a material widely used in photonics and electronics among other areas. Their results appeared as the cover article in Nature magazine.]]></description></item>

<item><link>http://www.aps.anl.gov/Science/Highlights/Content/APS_SCIENCE_20080226B.php</link>

<guid>http://www.aps.anl.gov/Science/Highlights/2007/Content/APS_SCIENCE_20080226B.php</guid>

<title>The Collagen Protein Viewed at Unprecedented Detail</title>

<pubDate>February 26, 2008</pubDate>

<description><![CDATA[The structure and behavior of one of the most common proteins in our bodies has been resolved at a level of detail never before seen, thanks to new research performed at the Advanced Photon Source at the U.S. Department of Energy's Argonne National Laboratory.]]></description></item>

<item><link>http://www.aps.anl.gov/Science/Highlights/Content/APS_SCIENCE_20080226.php</link>

<guid>http://www.aps.anl.gov/Science/Highlights/2007/Content/APS_SCIENCE_20080226.php</guid>

<title>A Lensless X-ray Camera for Nanoscale Materials and Biological Specimens</title>

<pubDate>February 26, 2008</pubDate>

<description><![CDATA[A lensless x-ray technique that can take images of ultra-small structures buried in nanoparticles and nanomaterials, and features within whole biological cells such as cellular nuclei,  has been developed by researchers using the Argonne Advanced Photon Source.]]></description></item>

<item><link>http://www.aps.anl.gov/Science/Highlights/Content/APS_SCIENCE_20080220.php</link>

<guid>http://www.aps.anl.gov/Science/Highlights/2007/Content/APS_SCIENCE_20080220.php</guid>

<title>Better, cleaner fuel injectors for automobiles?</title>

<pubDate>February 20, 2008</pubDate>

<description><![CDATA[Scientists are getting a better look inside high-speed, dense liquid jets thanks to a new experimental technique and the extreme-brightness x-ray beams from the Argonne Advanced Photon Source.]]></description></item>

<item><link>http://www.aps.anl.gov/Science/Highlights/Content/APS_SCIENCE_20080211.php</link>

<guid>http://www.aps.anl.gov/Science/Highlights/2007/Content/APS_SCIENCE_20080211.php</guid>

<title>Poxvirus Potency Uncovered in New Atomic Map </title>

<pubDate>February 11, 2008</pubDate>

<description><![CDATA[New details about the infectious potency of poxviruses have been uncovered by researchers using a South East Regional Collaborative Access Team x-ray beamline at the Argonne Advanced Photon Source, furthering our understanding of how one protein in viral infections can subvert the body&#8217;s immune system and potentially speeding the discovery of drugs to combat inflammation and immune diseases such as atherosclerosis and rheumatoid arthritis.]]></description></item>

<item><link>http://www.aps.anl.gov/Science/Highlights/Content/APS_SCIENCE_20080206.php</link>

<guid>http://www.aps.anl.gov/Science/Highlights/2007/Content/APS_SCIENCE_20080206.php</guid>

<title>Striking Nano Gold </title>

<pubDate>February 6, 2008</pubDate>

<description><![CDATA[Researchers using the General Medicine and Cancer Institutes Collaborative Access Team facility at the Argonne Advanced Photon Source have acquired new information that will accelerate the development of practical applications for monolayer-protected gold nanoparticles, an area of intense research activity.]]></description></item>

<item><link>http://www.aps.anl.gov/Science/Highlights/Content/APS_SCIENCE_20080201.php</link>

<guid>http://www.aps.anl.gov/Science/Highlights/2007/Content/APS_SCIENCE_20080201.php</guid>

<title>Oldest Known Magnet&#8217;s Secrets Revealed Under High Pressures</title>

<pubDate>February 1, 2008</pubDate>

<description><![CDATA[Researchers using two high-brightness x-ray beamlines at the Argonne Advanced Photon Source have uncovered new information about the coupling between magnetic and electrical properties of this venerable and highly useful material magnetite.]]></description></item>

<item><link>http://www.aps.anl.gov/Science/Highlights/Content/APS_SCIENCE_20080123.php</link>

<guid>http://www.aps.anl.gov/Science/Highlights/2007/Content/APS_SCIENCE_20080123.php</guid>

<title>Shedding Light on Protein Drug Interactions</title>

<pubDate>January 23, 2008</pubDate>

<description><![CDATA[Proteins, the biological molecules that are involved in virtually every action of every organism, may themselves move in surprising ways, according to a recent study carried out at the Argonne Advanced Photon Source. This work may shed new light on how proteins interact with drugs and other small molecules.]]></description></item>

<item><link>http://www.aps.anl.gov/Science/Highlights/Content/APS_SCIENCE_20071221.php</link>

<guid>http://www.aps.anl.gov/Science/Highlights/2007/Content/APS_SCIENCE_20071221.php</guid>

<title>Hybrid Semiconductors for Hardier Electronics and Optoelectronics?</title>

<pubDate>December 21, 2007</pubDate>

<description><![CDATA[New research at the Advanced Photon Source has shed light on a semiconducting material with zero thermal expansion, and may play a role in the design of future generations of electronics and optoelectronics that can withstand a wide range of temperatures.]]></description></item>

<item><link>http://www.aps.anl.gov/Science/Highlights/Content/APS_SCIENCE_20071203.php</link>

<guid>http://www.aps.anl.gov/Science/Highlights/2007/Content/APS_SCIENCE_20071203.php</guid>

<title>Unveiling the Molecular Structure of the Target of Many Drugs</title>

<pubDate>DECEMBER 3, 2007</pubDate>

<description><![CDATA[More than 40 years after beta blockers were first used clinically, scientists using a beamline at the Advanced Photon Source finally got a close-up look at the drug&#8217;s molecular target &#8211; the &#223;2-adrenergic receptor &#8211; research that promises to speed the discovery of new and improved drugs and broaden our understanding of human health and disease.]]></description></item>

<item><link>http://www.aps.anl.gov/Science/Highlights/Content/APS_SCIENCE_20071127.php</link>

<guid>http://www.aps.anl.gov/Science/Highlights/2007/Content/APS_SCIENCE_20071127.php</guid>

<title>A New Scenario for First Life on Earth</title>

<pubDate>NOVEMBER 27, 2007</pubDate>

<description><![CDATA[Experiments at the Advanced Photon Source have led researchers to some unexpected forms of liquid crystals of ultrashort DNA molecules immersed in water, providing a new scenario for a key step in the emergence of life on Earth.]]></description></item>

<item><link>http://www.aps.anl.gov/Science/Highlights/Content/APS_SCIENCE_20071121.php</link>

<guid>http://www.aps.anl.gov/Science/Highlights/2007/Content/APS_SCIENCE_20071121.php</guid>

<title>Surface Orbital 'Roughness' in Colossal Magnetoresistive Oxide</title>

<pubDate>NOVEMBER 21, 2007</pubDate>

<description><![CDATA[Is electronic behavior, such as charge, orbital, or spin order, different at a material&#8217;s surface or the interface between two materials compared to the bulk of the material? Researchers using beamlines at the APS and at the National Synchrotron Light Source, both supported by the US. Department of Energy Office of Science, have found important new information about these behaviors.]]></description></item>

<item><link>http://www.aps.anl.gov/Science/Highlights/Content/APS_SCIENCE_20071017.php</link>

<guid>http://www.aps.anl.gov/Science/Highlights/2007/Content/APS_SCIENCE_20071017.php</guid>

<title>Different Roads Toward Quantum Criticality</title>

<pubDate>OCTOBER 17, 2007</pubDate>

<description><![CDATA[The study of magnetic phase diagrams is essential to understanding the organizing principles of correlated electrons, as well as understanding the way in which physical parameters determine material properties.]]></description></item>

<item><link>http://www.aps.anl.gov/Science/Highlights/Content/APS_SCIENCE_20071015.php</link>

<guid>http://www.aps.anl.gov/Science/Highlights/2007/Content/APS_SCIENCE_20071015.php</guid>

<title>Orbital Reconstruction at a Complex Oxide Interface</title>

<pubDate>OCTOBER 15, 2007</pubDate>

<description><![CDATA[A current problem of intense interest to the condensed matter physics community is the behavior of systems with strongly interacting electrons. Researchers using the Argonne Advanced Photon Source have gained important new insights into this phenomenon.]]></description></item>

<item><link>http://www.aps.anl.gov/Science/Highlights/Content/APS_SCIENCE_20071012.php</link>

<guid>http://www.aps.anl.gov/Science/Highlights/2007/Content/APS_SCIENCE_20071012.php</guid>

<title>Bringing Antimicrobial Agents into the Light</title>

<pubDate>OCTOBER 12, 2007</pubDate>

<description><![CDATA[Improving and understanding antimicrobials&#8212;agents that help our bodies fight bacteria, fungi, or viruses at the point of infection&#8212;are the focus of new research carried out at the Argonne Advanced Photon Source that could help cystic fibrosis patients breathe easier, and provide all of us with new, more potent antibiotics.<br />
]]></description></item>

<item><link>http://www.aps.anl.gov/Science/Highlights/Content/APS_SCIENCE_20070924.php</link>

<guid>http://www.aps.anl.gov/Science/Highlights/2007/Content/APS_SCIENCE_20070924.php</guid>

<title>Logic Tells Us that Appearances May Be Deceptive</title>

<pubDate>SEPTEMBER 24, 2007</pubDate>

<description><![CDATA[There is a worldwide effort to utilize magnetic rings for the development of novel computer-memory applications, such as magnetic random-access memories. Researchers using the Advanced Photon Source and Center for Nanoscale Materials at Argonne reveal, in the cover story of the 24 September 2007 issue of Applied Physics Letters, new insights into the behavior of multilayer ring structures for memories.]]></description></item>

<item><link>http://www.aps.anl.gov/Science/Highlights/Content/APS_SCIENCE_20070921.php</link>

<guid>http://www.aps.anl.gov/Science/Highlights/2007/Content/APS_SCIENCE_20070921.php</guid>

<title>Detecting a Spin Transition Zone in Earth&#8217;s Lower Mantle</title>

<pubDate>SEPTEMBER 21, 2007</pubDate>

<description><![CDATA[A spin transition zone in Earth&#8217;s lower mantle that differs significantly from previously known structural transitions in the deep Earth has been detected by researchers using the Argonne Advanced Photon Source.]]></description></item>

<item><link>http://www.aps.anl.gov/Science/Highlights/Content/APS_SCIENCE_20070823.php</link>

<guid>http://www.aps.anl.gov/Science/Highlights/2007/Content/APS_SCIENCE_20070823.php</guid>

<title>A 450-million-year-old Protein Reveals Evolution's Steps</title>

<pubDate>AUGUST 23, 2007</pubDate>

<description><![CDATA[Scientists using the Argonne Advanced Photon Source have obtained a detailed &#8220;map&#8221; that pinpoints the location of every atom in a 450-million-year-old resurrected protein, offering the first opportunity to see the precise mechanisms by which evolution molded a tiny molecular machine at the atomic level.]]></description></item>

<item><link>http://www.aps.anl.gov/Science/Highlights/Content/APS_SCIENCE_20070808.php</link>

<guid>http://www.aps.anl.gov/Science/Highlights/2007/Content/APS_SCIENCE_20070808.php</guid>

<title>What Keeps Bugs from Being Bigger?</title>

<pubDate>AUGUST 8, 2007</pubDate>

<description><![CDATA[Research carried out at the Argonne Advanced Photon Source provides a specific explanation for what limits insect size.]]></description></item>

<item><link>http://www.aps.anl.gov/Science/Highlights/Content/APS_SCIENCE_20070801.php</link>

<guid>http://www.aps.anl.gov/Science/Highlights/2007/Content/APS_SCIENCE_20070801.php</guid>

<title>A Mystery No More</title>

<pubDate>AUGUST 1, 2007</pubDate>

<description><![CDATA[The iron oxide ferrihydrite&#8217;s crystalline structure is no longer one of nature&#8217;s secrets, thanks to research at the Argonne Advanced Photon Source.]]></description></item>

<item><link>http://www.aps.anl.gov/Science/Highlights/Content/APS_SCIENCE_20070712.php</link>

<guid>http://www.aps.anl.gov/Science/Highlights/2007/Content/APS_SCIENCE_20070712.php</guid>

<title>Understanding Materials Under High Pressure</title>

<pubDate>JULY 12, 2007</pubDate>

<description><![CDATA[The ability to reliably predict the bonding and interatomic forces in solids is an important topic in condensed-matter physics. This goal has been met by new research at the Argonne Advanced Photon Source.]]></description></item>

<item><link>http://www.aps.anl.gov/Science/Highlights/Content/APS_SCIENCE_20070711.php</link>

<guid>http://www.aps.anl.gov/Science/Highlights/2007/Content/APS_SCIENCE_20070711.php</guid>

<title>Malaria-resistant Mosquitoes Battle Disease with &#8220;Molecular Warhead&#8221;</title>

<pubDate>JULY 11, 2007</pubDate>

<description><![CDATA[Understanding why some mosquitoes are resistant to malaria could help fight a disease that afflicts and kills millions of people. Researchers using the Structural Biology Center (SBC) beamline 19-ID at the Argonne Advanced Photon Source, have found the answer.]]></description></item>

<item><link>http://www.aps.anl.gov/Science/Highlights/Content/APS_SCIENCE_20070625.php</link>

<guid>http://www.aps.anl.gov/Science/Highlights/2007/Content/APS_SCIENCE_20070625.php</guid>

<title>A New Picture of Earth's Lower Mantle?</title>

<pubDate>JUNE 25, 2007</pubDate>

<description><![CDATA[The Argonne Advanced Photon Source helped scientists measure a high-pressure mineral believed to exist deep within the Earth to show that the mineral may not, as geophysicists hoped, have the right properties to explain a mysterious layer lying just above the planet's core.]]></description></item>

<item><link>http://www.aps.anl.gov/Science/Highlights/Content/APS_SCIENCE_20070622.php</link>

<guid>http://www.aps.anl.gov/Science/Highlights/2007/Content/APS_SCIENCE_20070622.php</guid>

<title>Immune System's Fat Problem Solved</title>

<pubDate>JUNE 22, 2007</pubDate>

<description><![CDATA[Understanding how the human immune system fights disease will help us develop new pharmaceuticals. We now have new, important information on this process, thanks to research at the Argonne Advanced Photon Source.]]></description></item>

<item><link>http://www.aps.anl.gov/Science/Highlights/Content/APS_SCIENCE_20070618.php</link>

<guid>http://www.aps.anl.gov/Science/Highlights/2007/Content/APS_SCIENCE_20070618.php</guid>

<title>Getting to the Core of Luminescent Nanowires</title>

<pubDate>JUNE 18, 2007</pubDate>

<description><![CDATA[Researchers using the Argonne Advanced Photon Source have determined what is responsible for the luminescence exhibited by one-dimensional nanostructures that have great potential for optoelectronic devices such as blue-light lasers for next-generation optical storage media.]]></description></item>

<item><link>http://www.aps.anl.gov/Science/Highlights/Content/APS_SCIENCE_20070615.php</link>

<guid>http://www.aps.anl.gov/Science/Highlights/2007/Content/APS_SCIENCE_20070615.php</guid>

<title>Giant Magnetocaloric Materials Could Have Large Impact on the Environment</title>

<pubDate>JUNE 15, 2007</pubDate>

<description><![CDATA[Amid the growing awareness of climate change as a concern in need of solutions, research at the Argonne Advanced Photon Source may help reduce the levels of environmentally damaging hydrofluorocarbons in our atmosphere.]]></description></item>

<item><link>http://www.aps.anl.gov/Science/Highlights/Content/APS_SCIENCE_20070529.php</link>

<guid>http://www.aps.anl.gov/Science/Highlights/2007/Content/APS_SCIENCE_20070529.php</guid>

<title>Tracking the Origins of Fossil Fuels</title>

<pubDate>MAY 29, 2007</pubDate>

<description><![CDATA[Samples of oil precursors and coal can be persuaded to give up the secrets of their origin, thanks to a new synchrotron x-ray technique employed by researchers using the Argonne Advanced Photon Source.]]></description></item>

<item><link>http://www.aps.anl.gov/Science/Highlights/Content/APS_SCIENCE_20070523.php</link>

<guid>http://www.aps.anl.gov/Science/Highlights/2007/Content/APS_SCIENCE_20070523.php</guid>

<title>Tailoring the Properties of Magnetic Nanostructures</title>

<pubDate>MAY 23, 2007</pubDate>

<description><![CDATA[Studies carried out at the Advanced Photon Source show that subtle variations in shape can tailor the properties of magnetic nanostructures that could be used for new high-speed electronic devices.]]></description></item>

<item><link>http://www.aps.anl.gov/Science/Highlights/Content/APS_SCIENCE_20070511.php</link>

<guid>http://www.aps.anl.gov/Science/Highlights/2007/Content/APS_SCIENCE_20070511.php</guid>

<title>X-ray Holograms Expose Secret Magnetism</title>

<pubDate>MAY 11, 2007</pubDate>

<description><![CDATA[Collaborative research between U.K. and U.S. scientists using x-rays from the Argonne Advanced Photon Source has, for the first time, revealed the internal workings of antiferromagnets.]]></description></item>

<item><link>http://www.aps.anl.gov/Science/Highlights/Content/APS_SCIENCE_20070502B.php</link>

<guid>http://www.aps.anl.gov/Science/Highlights/2007/Content/APS_SCIENCE_20070502B.php</guid>

<title>One Giant Leap for Radiation Biology?</title>

<pubDate>MAY 2, 2007</pubDate>

<description><![CDATA[Researchers using the Advanced Photon Source have found that the ability of cells to survive radiation is highly dependent on the amount of protein damage during irradiation, which may lead to new methods for recovery from short- or long-term exposures to radiation such as cancer therapies, accidents or nuclear events, and astronauts exposed to cosmic radiation.]]></description></item>

<item><link>http://www.aps.anl.gov/Science/Highlights/Content/APS_SCIENCE_20070502.php</link>

<guid>http://www.aps.anl.gov/Science/Highlights/2007/Content/APS_SCIENCE_20070502.php</guid>

<title>How Dissolved Metal Ions Interact in Solution</title>

<pubDate>MAY 2, 2007</pubDate>

<description><![CDATA[Researchers using the Advanced Photon Source have determined how dissolved metal ions interact in solution, helping science better understand the ways these ions, such as those found in nuclear waste and other industrial processes, behave in the environment.]]></description></item>

<item><link>http://www.aps.anl.gov/Science/Highlights/Content/APS_SCIENCE_20070329B.php</link>

<guid>http://www.aps.anl.gov/Science/Highlights/2007/Content/APS_SCIENCE_20070329B.php</guid>

<title>Novel Experiments on Cement Yield Concrete Results</title>

<pubDate>MARCH 29, 2007</pubDate>

<description><![CDATA[Using some of the most modern tools of materials research, researchers have shed new light on one of mankind's older construction materials - cement.]]></description></item>

<item><link>http://www.aps.anl.gov/Science/Highlights/Content/APS_SCIENCE_20070329.php</link>

<guid>http://www.aps.anl.gov/Science/Highlights/2007/Content/APS_SCIENCE_20070329.php</guid>

<title>What's in the Cage Matters in Iron Antimonide Thermoelectric Materials</title>

<pubDate>MARCH 29, 2007</pubDate>

<description><![CDATA[Thermoelectric materials such as iron antimonide have drawn intense interest because they offer a pollution-free source of electricity and a vibration free source of refrigeration. Research at the Advanced Photon Source examined how the magnetism of cage-filler lanthanides may influence the thermoelectric properties of these materials.]]></description></item>

<item><link>http://www.aps.anl.gov/Science/Highlights/Content/APS_SCIENCE_20070328.php</link>

<guid>http://www.aps.anl.gov/Science/Highlights/2007/Content/APS_SCIENCE_20070328.php</guid>

<title>Watching a Glycine Riboswitch &quot;Switch&quot;</title>

<pubDate>MARCH 28, 2007</pubDate>

<description><![CDATA[The APS has helped researchers get the first look at the &quot;on&quot; and &quot;off&quot; states of the molecules that regulate genetic expression, the process by which information in a gene is used to create protein structures.]]></description></item>

<item><link>http://www.aps.anl.gov/Science/Highlights/Content/APS_SCIENCE_20070314.php</link>

<guid>http://www.aps.anl.gov/Science/Highlights/2007/Content/APS_SCIENCE_20070314.php</guid>

<title>Polyamorphism in a Metallic Glass</title>

<pubDate>MARCH 14, 2007</pubDate>

<description><![CDATA[A discovery by researchers using the Advanced Photon Source offers a new perspective on the amorphous state of metals and has implications for understanding the structure, evolution, and properties of materials that are of great technological interest for their corrosion and crack resistance as well as for electronic applications.]]></description></item>

<item><link>http://www.aps.anl.gov/Science/Highlights/Content/APS_SCIENCE_20070307B.php</link>

<guid>http://www.aps.anl.gov/Science/Highlights/2007/Content/APS_SCIENCE_20070307B.php</guid>

<title>New Nanoscale Engineering Breakthrough Points to Hydrogen-Powered Vehicles</title>

<pubDate>MARCH 7, 2007</pubDate>

<description><![CDATA[Researchers at the U.S. Department of Energy's Argonne National Laboratory have developed an advanced concept in nanoscale catalyst engineering that will bring polymer electrolyte membrane fuel cells for hydrogen-powered vehicles closer to massive commercialization.]]></description></item>

<item><link>http://www.aps.anl.gov/Science/Highlights/Content/APS_SCIENCE_20070307.php</link>

<guid>http://www.aps.anl.gov/Science/Highlights/2007/Content/APS_SCIENCE_20070307.php</guid>

<title>Under Pressure, Vanadium Won't Turn Down the Volume</title>

<pubDate>MARCH 7, 2007</pubDate>

<description><![CDATA[Scientists using the Advanced Photon Source have discovered a new change in the form of vanadium, a metal that is extremely important in the industrial world as an additive that makes steel exceptionally strong, resistant to metal fatigue, and ideal for applications such as jet turbine blades that can withstand high speed and abrasion.]]></description></item>

<item><link>http://www.aps.anl.gov/Science/Highlights/Content/APS_SCIENCE_20070306.php</link>

<guid>http://www.aps.anl.gov/Science/Highlights/2007/Content/APS_SCIENCE_20070306.php</guid>

<title>Patterning High-density Arrays of Nanospheres with Self Assembly</title>

<pubDate>MARCH 6, 2007</pubDate>

<description><![CDATA[A newly dedicated beamline at the APS can shed light on the physics that govern block copolymers, which have a wide range of applications, including high-density computer disk drives.]]></description></item>

<item><link>http://www.aps.anl.gov/Science/Highlights/Content/APS_SCIENCE_20070220.php</link>

<guid>http://www.aps.anl.gov/Science/Highlights/2007/Content/APS_SCIENCE_20070220.php</guid>

<title>Cells Forming Blood Vessels Send Their Copper to the Edge</title>

<pubDate>FEBRUARY 20, 2007</pubDate>

<description><![CDATA[Researchers from Argonne and The University of Chicago, using an Advanced Photon Source beamline, have uncovered important information about a link between copper in our bodies and the blood vessel growth critical to cancer.]]></description></item>

<item><link>http://www.aps.anl.gov/Science/Highlights/Content/APS_SCIENCE_20070212.php</link>

<guid>http://www.aps.anl.gov/Science/Highlights/2007/Content/APS_SCIENCE_20070212.php</guid>

<title>A Molecular Cause for One Form of Deafness</title>

<pubDate>FEBRUARY 12, 2007</pubDate>

<description><![CDATA[Scientists exploring the physics of hearing have found an underlying molecular cause for one form of deafness, and a conceptual connection between deafness and the organization of liquid crystals, which are used in flat-panel displays.]]></description></item>

<item><link>http://www.aps.anl.gov/Science/Highlights/Content/APS_SCIENCE_20070122.php</link>

<guid>http://www.aps.anl.gov/Science/Highlights/2007/Content/APS_SCIENCE_20070122.php</guid>

<title>Water Theory is Watertight</title>

<pubDate>JANUARY 22, 2007</pubDate>

<description><![CDATA[There may be tiny bubbles in the wine, but not at the interface between water and a waxy coating on glass, according to a new study carried out at the Advanced Photon Source.]]></description></item>

<item><link>http://www.aps.anl.gov/Science/Highlights/Content/APS_SCIENCE_20070111.php</link>

<guid>http://www.aps.anl.gov/Science/Highlights/2007/Content/APS_SCIENCE_20070111.php</guid>

<title>Nanowire Micronetworks from Carbon-Black Nanoparticles</title>

<pubDate>JANUARY 11, 2007</pubDate>

<description><![CDATA[Researchers using the APS have successfully demonstrated a simple approach for fabricating complex, interconnected three-dimensional systems of conductive nanoscale wires through self assembly of interconnected linear arrangements of nanoscale carbon black (CB) particles.]]></description></item>

<item><link>http://www.aps.anl.gov/Science/Highlights/Content/APS_SCIENCE_20070110B.php</link>

<guid>http://www.aps.anl.gov/Science/Highlights/2007/Content/APS_SCIENCE_20070110B.php</guid>

<title>An X-ray Rainbow</title>

<pubDate>JANUARY 10, 2007</pubDate>

<description><![CDATA[Physicists using XOR beamline 3-ID at the Advanced Photon Source have spread out a beam of x-rays (which are, after all, just a more energetic version of visible light) into a rainbow of colors.]]></description></item>

<item><link>http://www.aps.anl.gov/Science/Highlights/Content/APS_SCIENCE_20070110.php</link>

<guid>http://www.aps.anl.gov/Science/Highlights/2007/Content/APS_SCIENCE_20070110.php</guid>

<title>A Key Step in Repairing DNA Double-Strand Breaks</title>

<pubDate>JANUARY 10, 2007</pubDate>

<description><![CDATA[A team of Mayo Clinic researchers has uncovered a key step in the molecular pathway of repairing DNA double-strand breaks. The studies were carried out using the 19-ID beamline (SBC-CAT) at the Advanced Photon Source (APS, Argonne) and the X12-C beamline at the National Synchrotron Light Source (NSLS, Brookhaven National Laboratory).]]></description></item>

<item><link>http://www.aps.anl.gov/Science/Highlights/Content/APS_SCIENCE_20070108.php</link>

<guid>http://www.aps.anl.gov/Science/Highlights/2007/Content/APS_SCIENCE_20070108.php</guid>

<title>An Insulating Breakthrough</title>

<pubDate>JANUARY 8, 2007</pubDate>

<description><![CDATA[A new insulating material with the lowest thermal conductivity ever measured for a fully dense solid has been characterized at the APS. The principles involved could lead to improved insulation for a wide variety of uses.]]></description></item></channel>
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