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<title>Science and Research Highlights 2008</title>
<link>http://www.aps.anl.gov/Science/Highlights</link>
<description>Highlights of research occurring at the Advanced Photon Source at Argonne National Laboratory.</description>
<language>en-us</language>
<image>
<title>Argonne National Laboratory</title>
<url>http://www.aps.anl.gov/Images/argonne_header_logo_white.jpg</url>
<link>http://www.aps.anl.gov/Science/Highlights</link>
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<item><link>http://www.aps.anl.gov/Science/Highlights/Content/APS_SCIENCE_2009112.php</link>

<title>Secrets of the Lacewing&#8217;s Silk</title>

<pubDate>NOVEMBER 2, 2009</pubDate>

<description><![CDATA[Scientists have completed studies that confirm the elegant and unique structure of the silken egg stalk of the green lacewing (Chrysopidae), thanks to high-brightness x-rays from the U.S. Department of Energy&#8217;s Advanced Photon Source at Argonne. The information they obtained suggests that lacewing silk has both reasonable tensile strength and very high extensibility and may have potential value as a biomaterial.]]></description>

<image><img src="../Images/sh_rss_2009-1t.gif" alt="science highlight" border="0" width="110" height="142"/></image></item>

<item><link>http://www.aps.anl.gov/Science/Highlights/Content/APS_SCIENCE_20091027.php</link>

<title>The Structure of the Cell Nucleus &#8220;Gatekeeper&#8221;</title>

<pubDate>OCTOBER 27, 2009</pubDate>

<description><![CDATA[Biologists using an x-ray beamline at the U.S. Department of Energy&#8217;s Advanced Photon Source at Argonne have worked out a rudimentary architectural plan for the nuclear pore complex, the gatekeeper of the cell's nucleus. Their finding reveals a remarkable evolutionary story dating back more than one billion years.]]></description>

<image><img src="../Images/sh_rss_2009-2t.gif" alt="science highlight" border="0" width="110" height="152"/></image></item>

<item><link>http://www.aps.anl.gov/Science/Highlights/Content/APS_SCIENCE_20091016.php</link>

<title>The Power of Proteins: Prion Diseases Demystified  </title>

<pubDate>OCTOBER 16, 2009</pubDate>

<description><![CDATA[It is hard to believe that a single protein can be responsible for the damage inflicted by diseases such as Mad Cow Disease.  Yet the implicated protein, known as a prion, can initiate and propagate a disease cycle just by changing its shape. Researchers using the U.S. Department of Energy&#8217;s Advanced Photon Source at Argonne have achieved a significant advance in our understanding of the infectious power of the prion protein.]]></description>

<image><img src="../Images/sh_rss_2009-3t.gif" alt="science highlight" border="0" width="110" height="72"/></image></item>

<item><link>http://www.aps.anl.gov/Science/Highlights/Content/APS_SCIENCE_20091013.php</link>

<title>Bacterium Helps in the Formation of Gold</title>

<pubDate>OCTOBER 13, 2009</pubDate>

<description><![CDATA[Scientists using two U.S. Department of Energy x-ray light sources and a sister facility in France have found that the bacterium Cupriavidus metallidurans catalyses the biomineralisation of gold by transforming toxic gold compounds to their metallic form using active cellular mechanism, the first direct evidence that bacteria are actively involved in the cycling of rare and precious metals. ]]></description>

<image><img src="../Images/sh_rss_2009-4t.gif" alt="science highlight" border="0" width="110" height="191"/></image></item>

<item><link>http://www.aps.anl.gov/Science/Highlights/Content/APS_SCIENCE_20091009.php</link>

<title>Creating a Precise Atomic-Scale Map of Quantum Dots</title>

<pubDate>OCTOBER 9, 2009</pubDate>

<description><![CDATA[With a big assist from the U.S. Department of Energy&#8217;s Advanced Photon Source at Argonne, physicists have created an atomic-scale map of quantum dots with unprecedented precision, a major step toward the goal of producing &#8220;designer dots&#8221; that can be tailored for specific applications. ]]></description>

<image><img src="../Images/sh_rss_2009-5t.gif" alt="science highlight" border="0" width="110" height="39"/></image></item>

<item><link>http://www.aps.anl.gov/Science/Highlights/Content/APS_SCIENCE_20091008B.php</link>

<title>Getting to the Roots of Lethal Hairs</title>

<pubDate>OCTOBER 9, 2009</pubDate>

<description><![CDATA[Fine metal hairs&#8212;also called metal whiskers&#8212;on tin-plated copper cause short circuits in electronic components. An international team of researchers used the U.S. Department of Energy&#8217;s Advanced Photon Source at Argonne to help them understand why the whiskers grow.]]></description>

<image><img src="../Images/sh_rss_2009-6t.gif" alt="science highlight" border="0" width="110" height="152"/></image></item>

<item><link>http://www.aps.anl.gov/Science/Highlights/Content/APS_SCIENCE_20091006.php</link>

<title>Stressing Out the Twins in Magnesium</title>

<pubDate>OCTOBER 6, 2009</pubDate>

<description><![CDATA[The way a material reacts under stress is a question of critical relevance to it&#8217;s strength and versatility for various uses. The U.S. Department of Energy&#8217;s Advanced Photon Source at Argonne helped researchers pioneer a method of using three-dimensional x-ray diffraction to study the twinning process in low-symmetry materials and its evolution in situ on the level of individual grains, while also allowing the full stress tensor to be measured.]]></description>

<image><img src="../Images/sh_rss_2009-7t.gif" alt="science highlight" border="0" width="110" height="113"/></image></item>

<item><link>http://www.aps.anl.gov/Science/Highlights/Content/APS_SCIENCE_20090925.php</link>

<title>Size-Related Behavior of Anatase Nanocrystals under Extreme Pressure</title>

<pubDate>SEPTEMBER 27, 2009</pubDate>

<description><![CDATA[From the near vacuum of outer space to the intense pressure at a planet&#8217;s core, matter behaves differently at different levels of stress. Researchers using an x-ray beamline at the U.S. Department of Energy&#8217;s Advanced Photon Source at Argonne have discovered an intriguing, size-related quirk in the behavior of nanosized particles of one phase of titanium dioxide at very high pressures. The combination of techniques used in this study paves the way for exploration of the behavior of other nanochemical systems under high pressure.]]></description>

<image><img src="../Images/sh_rss_2009-8t.gif" alt="science highlight" border="0" width="110" height="106"/></image></item>

<item><link>http://www.aps.anl.gov/Science/Highlights/Content/APS_SCIENCE_20090915.php</link>

<title>Boron-Based Compounds Trick a Biomedical Protein</title>

<pubDate>SEPTEMBER 15, 2009</pubDate>

<description><![CDATA[Chemists and biologists using two U.S. Department of Energy research facilities have successfully demonstrated that specially synthesized boron compounds are readily accepted in biologically active enzymes, a move that, they say, is a proof of concept that could lead to new drug design strategies.]]></description>

<image><img src="../Images/sh_rss_2009-9t.gif" alt="science highlight" border="0" width="110" height="54"/></image></item>

<item><link>http://www.aps.anl.gov/Science/Highlights/Content/APS_SCIENCE_20090827.php</link>

<title>A Targeted Cancer Treatment using Nanomaterials</title>

<pubDate>AUGUST 27, 2009</pubDate>

<description><![CDATA[Thousands of people die from malignant brain tumors every year, and the tumors are resistant to conventional therapies. Now, scientists from the Center for Nanoscale Materials, Advanced Photon Source, and Chemical Sciences and Engineering Division at the U.S. Department of Energy's Argonne National Laboratory; and the University of Chicago's Brain Tumor Center have developed a way to target brain cancer cells that may eventually provide an alternative form of therapy that does not affect normal living tissue.]]></description>

<image><img src="../Images/sh_rss_2009-10t.gif" alt="science highlight" border="0" width="110" height="184"/></image></item>

<item><link>http://www.aps.anl.gov/Science/Highlights/Content/APS_SCIENCE_20090820.php</link>

<title>When Roots Follow the Path of Least Resistance</title>

<pubDate>AUGUST 18, 2009</pubDate>

<description><![CDATA[Plant roots follow old root channels in hostile soils for access to water and nutrients. Science knows about the chemical composition of the soil that surrounds plant roots versus the soil matrix away from the roots. What is not known is how long these differences persist in a root channel after the old root decays. Using the Argonne Advanced Photon Source, researchers have unearthed information that can be used to better manage soils and crops in hostile environments, such as low-rainfall areas.]]></description>

<image><img src="../Images/sh_rss_2009-11t.gif" alt="science highlight" border="0" width="110" height="74"/></image></item>

<item><link>http://www.aps.anl.gov/Science/Highlights/Content/APS_SCIENCE_20090813.php</link>

<title>Perfecting Catalytic Arrays</title>

<pubDate>AUGUST 13, 2009</pubDate>

<description><![CDATA[Catalysts speed up chemical reactions and remain largely unchanged themselves at the end of the process. This apparently simple statement harbors a chemical secret: Catalysts are much more complicated than that. Work carried out at the Argonne Advanced Photon Source, Center for Nanoscale Materials, and Electron Microscopy Center for Materials Research could improve our understanding of at least one class of industrially important catalyst: metal nanoparticle catalysts.]]></description>

<image><img src="../Images/sh_rss_2009-12t.gif" alt="IDD_jacs_131_5732" border="0" width="110" height="62"/></image></item>

<item><link>http://www.aps.anl.gov/Science/Highlights/Content/APS_SCIENCE_20090811.php</link>

<title>A Stable Open Framework with Wide Open Spaces</title>

<pubDate>AUGUST 11, 2009</pubDate>

<description><![CDATA[Porous materials frameworks with open structures are potentially useful for a wide range of applications, such as gas storage, catalysis, and drug delivery. One such class is metal-organic frameworks (MOFs). But the more porous these frameworks are, the more fragile they tend to become. Researchers using the Advanced Photon Source at Argonne have made a MOF that is remarkably open but also stable. This new synthetic strategy may serve as a general approach toward stable MOFs with even higher surface areas, eventually leading to even greater practical applications. ]]></description>

<image><img src="../Images/sh_rss_2009-13t.gif" alt="science highlight" border="0" width="110" height="107"/></image></item>

<item><link>http://www.aps.anl.gov/Science/Highlights/Content/APS_SCIENCE_20090730.php</link>

<title>Pumping Through the Middle Crust</title>

<pubDate>JULY 29, 2009</pubDate>

<description><![CDATA[A team of geologists and geophysicists using the U.S. Department of Energy&#8217;s Advanced Photon Source has shed light on a fluid transfer in the middle continental crust, a phenomenon that was formerly poorly understood. Their work could lead to a fuller understanding of fluid migration through rock, with possible wide application in deciphering important geological processes including earthquakes.]]></description>

<image><img src="../Images/sh_rss_2009-14t.gif" alt="\Documents and Settings\fenner\Desktop\09_ANN_REP\Sector 2\xor2_nature_459_974\xor2_nature_459_974_F1 rev.png" border="0" width="110" height="75"/></image></item>

<item><link>http://www.aps.anl.gov/Science/Highlights/Content/APS_SCIENCE_20090617.php</link>

<title>Using High-Pressure &#8220;Alchemy&#8221; to Create Nonexpanding Metals</title>

<pubDate>JUNE 17, 2009</pubDate>

<description><![CDATA[By squeezing a metal alloy at pressures hundreds of thousands of times greater than normal atmospheric pressure, researchers using x-rays at two U.S. Department of Energy national laboratories have created a material that does not expand when heated and acts like a metal with an entirely different chemical composition. The discovery offers insights about the exotic behavior of materials under high pressures, which represent some 90% of the matter in our solar system.]]></description>

<image><img src="../Images/sh_rss_2009-15t.gif" alt="science highlight" border="0" width="110" height="161"/></image></item>

<item><link>http://www.aps.anl.gov/Science/Highlights/Content/APS_SCIENCE_20090616.php</link>

<title>Looking for Ways to Improve Vaccines Against the Deadly Rotavirus</title>

<pubDate>JUNE 16, 2009</pubDate>

<description><![CDATA[The first detailed molecular snapshots of a deadly gastrointestinal virus caught in the grasp of an immune system molecule with the capacity to inactivate it could help scientists design a more effective vaccine against rotavirus, which kills more than 500,000 children worldwide each year. The discovery was made by researchers using the U.S. Department of Energy&#8217;s Advanced Photon Source at Argonne National Laboratory.]]></description>

<image><img src="../Images/sh_rss_2009-16t.gif" alt="science highlight" border="0" width="110" height="109"/></image></item>

<item><link>http://www.aps.anl.gov/Science/Highlights/Content/APS_SCIENCE_20090612.php</link>

<title>A &#8220;Colossal&#8221; Magnetic Effect under Pressure</title>

<pubDate>JUNE 12, 2009 </pubDate>

<description><![CDATA[&#8220;Giant&#8221; and &#8220;colossal&#8221; aren&#8217;t the words that come to mind when thinking about MP3 players or laptops. But we can store and access ever-increasing amounts of data on ever-smaller devices because of giant magnetoresistance. Now researchers using the U.S. Department of Energy&#8217;s Advanced Photon Source at Argonne National Laboratory are delving into the forces colossal magnetoresistance, which is up to a thousand times more powerful than GMR and could trigger another revolution in computing technology. ]]></description>

<image><img src="../Images/sh_rss_2009-17t.gif" alt="science highlight" border="0" width="110" height="56"/></image></item>

<item><link>http://www.aps.anl.gov/Science/Highlights/Content/APS_SCIENCE_20090521.php</link>

<title>Using High Pressure to Reveal Quantum Criticality in an Elemental Antiferromagnet</title>

<pubDate>MAY 21, 2009</pubDate>

<description><![CDATA[New research at the U.S. Department of Energy&#8217;s Advanced Photon Source is a milestone in the study of emergent magnetism and quantum criticality. It opens new possibilities for high-pressure studies of fundamental magnetism and technologically important correlated electron materials.]]></description>

<image><img src="../Images/sh_rss_2009-18t.gif" alt="science highlight" border="0" width="110" height="72"/></image></item>

<item><link>http://www.aps.anl.gov/Science/Highlights/Content/APS_SCIENCE_20090423.php</link>

<title>Nano Changes Have Macro Importance for a Key Electronics Material</title>

<pubDate>APRIL 23, 2009</pubDate>

<description><![CDATA[Combining the results from several powerful techniques for studying materials structure at the nanoscale, including work at the U.S. Department of Energy&#8217;s Advanced Photon Source at Argonne National Laboratory, researchers believe they have settled a long-standing debate over the source of the unique electronic properties of a material with potentially great importance for wireless communications.]]></description>

<image><img src="../Images/sh_rss_2009-19t.gif" alt="science highlight" border="0" width="110" height="77"/></image></item>

<item><link>http://www.aps.anl.gov/Science/Highlights/Content/APS_SCIENCE_20090421.php</link>

<title>Squeezing an Old Material Could Yield &#8220;Instant-On&#8221; Memory</title>

<pubDate>APRIL 21, 2009</pubDate>

<description><![CDATA[The technology for storing electronic information has been a major force in the electronics industry for decades. Improving this technology to keep up with new requirements and trends has been an economic driver for as long as the technology has been around. Now, low-power, high-efficiency electronic memory could be the result of research at the U.S. Department of Energy&#8217;s Advanced Photon Source at Argonne National Laboratory. ]]></description>

<image><img src="../Images/sh_rss_2009-20t.gif" alt="science highlight" border="0" width="110" height="71"/></image></item>

<item><link>http://www.aps.anl.gov/Science/Highlights/Content/APS_SCIENCE_20090420.php</link>

<title>A Metal That Becomes Transparent under Pressure</title>

<pubDate>APRIL 20, 2009</pubDate>

<description><![CDATA[Sodium might appear to be an unassuming member of the Periodic Table of Elements, but scientists using the U.S. Department of Energy&#8217;s Advanced Photon Source at Argonne National Laboratory have discovered that sodium displays a unique property by turning transparent when pressure is applied. This result has important implications for understanding highly compressed matter, in particular inside stars and giant planets. ]]></description>

<image><img src="../Images/sh_rss_2009-21t.gif" alt="science highlight" border="0" width="110" height="34"/></image></item>

<item><link>http://www.aps.anl.gov/Science/Highlights/Content/APS_SCIENCE_20090312.php</link>

<title>Under Pressure, Atoms Make Unlikely Alloys</title>

<pubDate>MARCH 12, 2009</pubDate>

<description><![CDATA[Ever since the Bronze Age, humans have experimented with combining different metals to create alloys having properties superior to either metal alone. But not all metals readily form alloys. Researchers using high-brilliance x-rays from the U.S. Department of Energy&#8217;s Advanced Photon Source have discovered that previously impossible alloys can be created by subjecting atoms to high pressure&#8213;opening possibilities for new materials in the future.]]></description>

<image><img src="../Images/sh_rss_2009-22t.gif" alt="science highlight" border="0" width="110" height="98"/></image></item>

<item><link>http://www.aps.anl.gov/Science/Highlights/Content/APS_SCIENCE_20090305.php</link>

<title>Slowing Down Near the Glass Transition</title>

<pubDate>MARCH 5, 2009</pubDate>

<description><![CDATA[Researchers using an x-ray beamline at the U.S. Department of Energy&#8217;s Advanced Photon Source have gained new information on how the motions of entangled polymer chains in a thin liquid film freeze as the film approaches the temperature at which the liquid goes into a glassy state.]]></description>

<image><img src="../Images/sh_rss_2009-23t.gif" alt="science highlight" border="0" width="110" height="80"/></image></item>

<item><link>http://www.aps.anl.gov/Science/Highlights/Content/APS_SCIENCE_20090303B.php</link>

<title>The Crystal Structure of a Meta-stable Intermediate Particle in Virus Assembly</title>

<pubDate>MARCH 3, 2009</pubDate>

<description><![CDATA[A snapshot of the elegant dance performed by viral proteins as they create the infectious structure that causes all manner of misery and disease has been captured by scientists using the U.S. Department of Energy&#8217;s Advanced Photon Source at Argonne National Laboratory. Their work may help drug developers pinpoint attack sites for pharmaceuticals, and could have an impact on the emerging field of medical nanotechnology.]]></description>

<image><img src="../Images/sh_rss_2009-24t.gif" alt="science highlight" border="0" width="110" height="140"/></image></item>

<item><link>http://www.aps.anl.gov/Science/Highlights/Content/APS_SCIENCE_20090303.php</link>

<title>New Light on Improving Engine Efficiencies </title>

<pubDate>MARCH 3, 2009</pubDate>

<description><![CDATA[Power plants based on turbine engines burning natural gas are a key component of future energy grids in the U.S. and other nations. A team of researchers applied the high-brightness x-ray beams from the U.S. Department of Energy&#8217;s Advanced Photon Source at Argonne National Laboratory to finding ways of incorporating new materials for this promising energy source.<br />
]]></description>

<image><img src="../Images/sh_rss_2009-25t.gif" alt="science highlight" border="0" width="110" height="80"/></image></item>

<item><link>http://www.aps.anl.gov/Science/Highlights/Content/APS_SCIENCE_20090225.php</link>

<title>Increasing Magnetic Response of Ferromagnetic Semiconductors under High Pressure</title>

<pubDate>FEBRUARY 26, 2009</pubDate>

<description><![CDATA[Scientists using the U.S. Department of Energy's Advanced Photon Source have manipulated electron mobility and pinpointed the mechanism controlling the strength of magnetic interactions in europium oxide and, hence, the material's magnetic ordering temperature.]]></description>

<image><img src="../Images/sh_rss_2009-26t.gif" alt="science highlight" border="0" width="110" height="147"/></image></item>

<item><link>http://www.aps.anl.gov/Science/Highlights/Content/APS_SCIENCE_20090224.php</link>

<title>Better Switching Through Chemistry in Thin Ferroelectrics </title>

<pubDate>FEBRUARY 24, 2009</pubDate>

<description><![CDATA[Because the atomic structure and polarity of ferroelectric materials respond dramatically to an applied electric field, they have found many applications. But what if there were another way to make ferroelectric materials do their thing&#8212;not electrically, but through another mechanism? Experimenters using an x-ray beamline at the U.S. Department of Energy&#8217;s Advanced Photon Source have managed to do just that, proving that not just electricity but also a little bit of chemistry can flip the structure and thus the polarity of a ferroelectric]]></description>

<image><img src="../Images/sh_rss_2009-27t.gif" alt="science highlight" border="0" width="110" height="176"/></image></item>

<item><link>http://www.aps.anl.gov/Science/Highlights/Content/APS_SCIENCE_20090122.php</link>

<title>First Molecular-Level Enzyme Images Could Improve Breast-Cancer Therapy </title>

<pubDate>JANUARY 22, 2009</pubDate>

<description><![CDATA[Like watchmakers prying open a complicated timepiece, researchers are using x-ray beams from the U.S. Department of Energy&#8217;s Advanced Photon Source, and the Cornell High Energy Synchrotron Source, to peer into the molecular works of an enzyme that has long defied investigation. What they are discovering may one day make it possible to design safer, more effective cancer-fighting drugs. ]]></description>

<image><img src="../Images/sh_rss_2009-28t.gif" alt="science highlight" border="0" width="110" height="83"/></image></item>

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