Science Highlights

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Improving HPC I/O performance on leadership class supercomputers

On the leadership computers at Argonne National Laboratory, these approaches yield up to 53% improvement in performance over the existing I/O forwarding mechanism and close to

November 1, 2011
Structure of 2-oxo-3-deoxygalactonate kinase from Klebsiella pneumoniae.
Researchers determine three dimensional structure of galactose metabolic pathway protein

In most organisms, efficient D-galactose utilization is accomplished via a well-studied pathway known as the Leloir pathway.

October 3, 2011
Fig.1. C. moniliferum cell morphology and crystals. (A) Confocal microscopy image showing the prominent lobes of the two chloroplasts (red); cell membrane in green. (B) DIC image of BaSO4 crystals (arrow) in the terminal vacuole; arrowhead indicates a pyrenoid. (C) SEM image of rhombic (arrow) and hexagonal (arrowhead) BaSO4 crystals that remain after cells have been ashed to remove organic material. (D) Illustration showing approximate locations of freeze-fracture cross-sections analyzed by cryo-SEM
How Algae Use a "Sulfate Trap" to Selectively Biomineralize Strontium

Over the years, researchers have looked to a small number of organisms, including the desmid green alga Closterium moniliferum, because of their ability to selectively sequester strontium,

October 1, 2011
Thinnest Nanofiltration Membrane to Date is Produced

A separation membrane is a key component in both nanofiltration and reverse osmosis filtration systems.

October 1, 2011
An Understanding of Elastin's Properties Springs Forth

Physiological flexibility comes from the protein elastin, deriving properties from the building-block molecule tropoelastin, which behaves as an ideal elastomer because it loses no energy between s

September 1, 2011
New TRIXS for measuring low energy surface and interfacial electronic structure at in situ conditions

While high energy X-ray methods have been widely used to study the structure and spectroscopy of surfaces and interfaces in extreme environments, light element and valence excitations need lower en

September 1, 2011
Coherent Diffractive Imaging in Living Color

Exactly 150 years after the first color photograph was produced, scientists have devised a way of employing the full spectrum of colors from synchrotron and free-electron laser x radiation to image

August 1, 2011
Brain Iron as an Early Predictor of Alzheimer's Disease

New scientific information relevant to Alzheimer's disease, obtained by researchers utilizing the U. S.

August 1, 2011
Extending Resonant Diffraction to Very High Energies for Structural Studies of Complex Materials

Researchers utilizing the U.S.

August 1, 2011
Metallic Glass: A Crystal at Heart

Researchers squeezed samples of a metallic glass between the tips of two diamonds in a diamond anvil cell at X-ray beamline 16-ID-B of the High Pressure Collaborative Access T

August 1, 2011