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Science News for June 29, 2008


New efficiency benchmark for dye-sensitized solar cells

Researchers have achieved a record light conversion efficiency of 8.2% in solvent-free dye-sensitized solar cells, paving the way for large-scale outdoor applications. The development of an electrolyte mixture made from three solid salts replaces volatile organic solvents, making it possible to produce lightweight and inexpensive flexi...

SourceEcole Polytechnique Fédérale de Lausanne·JournalNature Materials·DateJun 29, 2008

International team identifies 21 new genetic risk factors for Crohn's disease

An international team of researchers has identified 21 new genetic risk factors for Crohn's disease, building on earlier studies that linked the disorder to disruptions in autophagy and immune system response. The findings, published in Nature Genetics, may lead to novel therapies and prevention strategies.

SourceMassachusetts General Hospital·JournalNature Genetics·DateJun 29, 2008

UK and US guidelines on kids' physical activity levels need rethinking

A longitudinal study found that only 42% of boys and 11% of girls meet the recommended weekly physical activity levels. While children who met the guidelines showed progressive improvement in predictive health indicators, those who did not showed deterioration. The authors suggest re-evaluating the guideline measures to better encourag...

SourceBMJ Group·JournalArchives of Disease in Childhood·DateJun 29, 2008
Creality K1 Max 3D Printer

Creality K1 Max 3D Printer rapidly prototypes brackets, adapters, and fixtures for instruments and classroom demonstrations at large build volume.

Bee disease a mystery

Scientists have found that Deformed Wing Virus (DWV) does not replicate in Varroa mites, highlighting the need for further investigation into its transmission. Research suggests that the virus is transmitted to bees when the mite bites and picks up infected bees' saliva or gut contents.

SourceMicrobiology Society·JournalJournal of General Virology·DateJun 29, 2008

Complexity of Crohn's disease revealed as 'gene' count tops 30

A study published in Nature Genetics has identified over 30 genetic regions associated with Crohn's disease, revealing surprising links between the condition and other common diseases like asthma. The research also highlights the complexity of the disease, suggesting hundreds of genes may be involved.

SourceWellcome Trust·JournalNature Genetics·DateJun 29, 2008
SAMSUNG T9 Portable SSD 2TB

SAMSUNG T9 Portable SSD 2TB transfers large imagery and model outputs quickly between field laptops, lab workstations, and secure archives.

Heavy birthweight babies twice as likely to develop rheumatoid arthritis

A large cohort study of over 87,000 women found that heavy birthweight female babies are twice as likely to develop rheumatoid arthritis in adulthood. The findings support the fetal origin of disease theory, suggesting that certain conditions and diseases may be programmed by factors during pregnancy.

SourceBMJ Group·JournalAnnals of the Rheumatic Diseases·DateJun 29, 2008