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New clues to how proteins dissolve and crystallize

May 12, 2008 | User rating: 4.8 / 5 after 10 vote(s) | pda version

In the late 19th century the Czech scientist Franz Hofmeister observed that some salts (ionic compounds) aided the solution of proteins in egg white, some caused the proteins to destabilize and precipitate, ...


Stem cells at root of antlers' branching

Apr 30, 2008 | User rating: 5 / 5 after 1 vote(s) | pda version

The ability to regenerate lost body parts is unevenly distributed among higher organisms. Among vertebrates, some amphibians are able to replace lost limbs completely, while mammals are unable to regenerate ...


Rat survey may help identify human disease genes

Apr 29, 2008 | User rating: 5 / 5 after 2 vote(s) | pda version

A survey of genetic variation in laboratory rats which may help identify human disease genes is published this week in Nature Genetics.


Are nanobots on their way?

Apr 28, 2008 | User rating: 4.8 / 5 after 22 vote(s) | pda version

[The first real steps towards building a microscopic device that can construct nano machines have been taken by US researchers. Writing in the peer-reviewed publication, International Journal of Nanomanufacturing from ...


Researchers unravel heparin death mystery

Apr 23, 2008 | User rating: 4.5 / 5 after 17 vote(s) | pda version

An international team of researchers led by MIT has explained how contaminated batches of the blood-thinner heparin were able to slip past traditional safety screens and kill dozens of patients recently in ...


Innovative Composite Opens Terahertz Frequencies to Many Applications

Apr 17, 2008 | User rating: 4.6 / 5 after 18 vote(s) | pda version

A frequency-agile metamaterial that for the first time can be tuned over a range of frequencies in the so-called “terahertz gap” has been engineered by a team of researchers from Boston College, Los Alamos National Laboratory ...


Fast AFM probes measure multiple properties of biomolecules or materials simultaneously

Apr 16, 2008 | User rating: 4.6 / 5 after 16 vote(s) | pda version

New research demonstrates that novel probe technology based on flexible membranes can replace conventional atomic force microscopy (AFM) cantilevers for applications such as fast topographic imaging, quantitative ...


Carbon Nanotube Measurements: Latest in NIST 'How-To' Series

Apr 15, 2008 | User rating: 4 / 5 after 4 vote(s) | pda version

The National Institute of Standards and Technology, in collaboration with the National Aeronautics and Space Administration, has published detailed guidelines for making essential measurements on samples of ...


Scientists develop strategy to rapidly describe outbreak strains with next-generation DNA sequencing

Apr 11, 2008 | User rating: 5 / 5 after 1 vote(s) | pda version

In the event of an outbreak or a bioterrorist attack, rapid identification of the genetic changes responsible for virulence or drug resistance is essential to mounting an effective response. Standard DNA sequencing and analysis ...


NASA Launches Airborne Study of Arctic Atmosphere, Air Pollution

Apr 01, 2008 | User rating: 5 / 5 after 1 vote(s) | pda version

NASA Launches Airborne Study of Arctic Atmosphere, Air Pollution WASHINGTON -- This month, NASA begins the most extensive field campaign ever to investigate the chemistry of the Arctic's lower atmosphere. ...


Scientists discover 356 animal inclusions trapped in 100 million years old opaque amber

Apr 01, 2008 | User rating: 4.5 / 5 after 25 vote(s) | pda version

Paleontologists from the University of Rennes (France) and the ESRF have found the presence of 356 animal inclusions in completely opaque amber from mid-Cretaceous sites of Charentes (France). The team used the X-rays of ...


Think green to reduce nanotech hazards

Mar 31, 2008 | User rating: 4.7 / 5 after 3 vote(s) | pda version

The University of Oregon's Jim Hutchison already holds three patents in the emerging field of nanotechnology as well as leadership roles in organizations that promote the technology's potential in materials ...


Team explains 'the wallpaper problem'

Mar 30, 2008 | User rating: 4.1 / 5 after 35 vote(s) | pda version

Frustrated by tape that won't peel off the roll in a straight line? Angry at wallpaper that refuses to tear neatly off the wall? A new study reveals why these efforts can be so aggravating. Wallpaper is not ...


Femtogram-level chemical measurements now possible

Mar 27, 2008 | User rating: 4 / 5 after 5 vote(s) | pda version

Finding a simple and convenient technique that combines nanoscale structural measurements and chemical identification has been an elusive goal. With current analytical instruments, spatial resolution is too low, signal-to-noise ...


Using ground-penetrating radar to observe hidden underground water processes

Mar 20, 2008 | User rating: 3.5 / 5 after 8 vote(s) | pda version

To meet the needs of a growing population and to provide it with a higher quality of life, increasing pressures are being placed on the environment through the development of agriculture, industry, and infrastructures.


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