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Discarded data may hold the key to a sharper view of molecules

There's nothing like a new pair of eyeglasses to bring fine details into sharp relief. For scientists who study the large molecules of life from proteins to DNA, the equivalent of new lenses have come in the form of an advanced method for analyzing data from X-ray crystallography experiments.

Biochemistry | Source: Oregon State University | Views: 15 | Comments: 0
Video: Nanoparticles seen as artificial atoms

In the growth of crystals, do nanoparticles act as "artificial atoms" forming molecular-type building blocks that can assemble into complex structures? This is the contention of a major but controversial theory to explain nanocrystal growth. A study by researchers at the U.S. Department of Energy (DOE)'s Lawrence Berkeley National Laboratory (Berkeley Lab) may resolve the controversy and point the

Materials Science | Source: DOE/Lawrence Berkeley National Laboratory | Views: 24 | Comments: 0
First direct observation of oriented attachment in nanocrystal growth

Through biomineralization, nature is able to produce such engineering marvels as mother of pearl, or nacre, the inner lining of abalone shells renowned for both its iridescent beauty and amazing toughness. Key to biomineralization is the phenomenon known as "oriented attachment," whereby adjacent nanoparticles connect with one another in a common crystallographic orientation. While the importance

Materials Science | Source: DOE/Lawrence Berkeley National Laboratory | Views: 22 | Comments: 0
Organic carbon from Mars, but not biological

Molecules containing large chains of carbon and hydrogen--the building blocks of all life on Earth--have been the targets of missions to Mars from Viking to the present day. While these molecules have previously been found in meteorites from Mars, scientists have disagreed about how this organic carbon was formed and whether or not it came from Mars. A new paper led by Car

Geology | Source: Carnegie Institution | Views: 33 | Comments: 0
Autopsy of a eruption: Linking crystal growth to volcano seismicity

A forensic approach that links changes deep below a volcano to signals at the surface is described by scientists from the University of Bristol in a paper published today in Science. The research could ultimately help to predict future volcanic eruptions with greater accuracy.

Geology | Source: University of Bristol | Views: 21 | Comments: 0
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More Physical Sciences News
Autopsy of a eruption: Linking crystal growth to volcano seismicity

A forensic approach that links changes deep below a volcano to signals at the surface is described by scientists from the University of Bristol in a paper published today in Science. The research could ultimately help to predict future volcanic eruptions with greater accuracy.

Geology | Source: University of Bristol | Views: 21 | Comments: 0
LiDAR technology reveals faults near Lake Tahoe

Results of a new U.S. Geological Survey study conclude that faults west of Lake Tahoe, Calif., referred to as the Tahoe-Sierra frontal fault zone, pose a substantial increase in the seismic hazard assessment for the Lake Tahoe region of California and Nevada, and could potentially generate earthquakes with magnitudes ranging from 6.3 to 6.9. A close association of landslide

Geology | Source: Geological Society of America | Views: 20 | Comments: 0
Researchers identify protein necessary for behavioral flexibility

Researchers have identified a protein necessary to maintain behavioral flexibility, which allows us to modify our behaviors to adjust to circumstances that are similar, but not identical, to previous experiences. Their findings, which appear in the journal Cell Reports, may offer new insights into addressing autism and schizophrenia—afflictions marked by impaired behavioral flexibility.

Biochemistry | Source: New York University | Views: 63 | Comments: 0
Exotic particles, chilled and trapped, form giant matter wave

Physicists have trapped and cooled exotic particles called excitons so effectively that they condensed and cohered to form a giant matter wave.

Physics | Source: University of California - San Diego | Views: 65 | Comments: 0
Elusive quasiparticles realized

Ultracold quantum gases are an ideal experimental model system to simulate physical phenomena in condensed matter. In these gases, many-body states can be realized under highly controlled conditions and interactions between particles are highly tuneable. A research group led by Wittgenstein awardee Rudolf Grimm and START awardee Florian Schreck have now realized and comprehensively analyzed repuls

Physics | Source: University of Innsbruck | Views: 37 | Comments: 0
Geological record shows air up there came from below

The influence of the ground beneath us on the air around us could be greater than scientists had previously thought, according to new research that links the long-ago proliferation of oxygen in Earth's atmosphere to a sudden change in the inner workings of our planet.

Geology | Source: Princeton University | Views: 49 | Comments: 0
Forensics ferret out fire beetle secret

Criminal cases can often only be solved using forensics to piece together physical evidence and reconstruct what happened. Prof. Dr. Helmut Schmitz from the Institute of Zoology at the University of Bonn and Dr. Herbert Bousack from the Peter Grünberg Institut at the Forschungzentrum Jülich went through the same experience. Prof. Schmitz has been researching fire beetles of the genus Melanophil

Chemistry | Source: University of Bonn | Views: 51 | Comments: 0
A non-invasive intracellular 'thermometer' with fluorescent proteins has been created

A team from the Institute of Photonic Sciences (ICFO) has developed a technique to measure internal cell temperatures without altering their metabolism. This finding could be useful when distinguishing healthy cells from cancerous ones, as well as learning more about cellular processes.

Biochemistry | Source: FECYT - Spanish Foundation for Science and Technology | Views: 58 | Comments: 0
Study shows availability of hydrogen controls chemical structure of graphene oxide

A new study shows that the availability of hydrogen plays a significant role in determining the chemical and structural makeup of graphene oxide, a material that has potential uses in nano-electronics, nano-electromechanical systems, sensing, composites, optics, catalysis and energy storage.

Materials Science | Source: Georgia Institute of Technology Research News | Views: 59 | Comments: 0
Scientists find gold-plated fossil solution

An international team of scientists in the University of Leicester's Department of Geology has found a solution to a research problem involving fossils right next door - in the University's Chemistry Department.

Chemistry | Source: University of Leicester | Views: 73 | Comments: 0
New study provides baseline measurements of carbon in Arctic Ocean

Scientists from the Woods Hole Oceanographic Institution (WHOI) have conducted a new study to measure levels of carbon at various depths in the Arctic Ocean. The study, recently published in the journal Biogeosciences, provides data that will help researchers better understand the Arctic Ocean's carbon cycle—the pathway through which carbon enters and is used by the marine ecosystem. It wil

Geology | Source: Woods Hole Oceanographic Institution | Views: 69 | Comments: 0
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