JILA scientists discovered a flaw in the most common DNA elasticity model, leading to errors in measuring short DNA molecules. The finite worm-like chain (FWLC) model improves accuracy by incorporating length effects.
Researchers report that Tregs respond stronger to foreign substances than their own body proteins, contrary to the long-held scientific belief. This finding has implications for emerging therapies targeting autoimmune diseases.
The updated GOLD report provides new standards for diagnosing and managing chronic obstructive pulmonary disease (COPD), emphasizing the importance of proper diagnosis and assessment. The report also highlights the need to understand co-morbidities and implement effective strategies for prevention, treatment, and management.
The Center for Excellence in Environmental Toxicology at Penn School of Medicine will study biological indicators of exposure to cigarette smoke using a panel of biochemical markers. The goal is to identify people most at risk of tobacco-related disease and potentially inspire them to quit smoking.
Researchers at EMBL have identified a molecule called n-cofilin crucial for preventing neuronal disorders. The protein helps organise cell skeleton, essential for brain development and function.
Researchers at NIST developed a novel annealing process that creates highly ordered nanostructured polymer thin films with controlled patterns. The 'cold zone' annealing system produces defect-free films with sub-30nm features, opening up new possibilities for microelectronics and data storage applications.
The USGS Coalition will host a congressional reception to highlight the importance of increased funding for the USGS in the FY 2008 budget. The event aims to promote responsible natural resource stewardship and improve resilience to natural hazards.
Experts will assess progress and global priorities in DNA barcoding, a field with potential applications in disease prevention, environmental monitoring, and consumer protection. The conference aims to share latest insights and techniques among scientists and officials.
A large international study of children found that those with allergic sensitizations in economically developed countries are four times more likely to have asthma than their non-sensitized counterparts. The association was weaker in less affluent settings, suggesting local environmental factors may play a role.
The Hercules Dwarf Galaxy, a tiny companion to the Milky Way, has been found to have an exceptional flat shape, unlike any other known galaxy. The galaxy's shape is likely due to its close proximity to the Milky Way and the gravitational forces that disrupt it.
Researchers used solid-state NMR spectroscopy to create high-resolution images of cytochrome b5 in its membrane environment, revealing its helical shape and interaction with cytochrome P450. This breakthrough sheds light on the complex dynamics between these two proteins.
Researchers have successfully synthesized a DNA-based memory loop in yeast cells, demonstrating the ability to create a mathematical model that predicts how such a device might work. The memory loop continued throughout many cell divisions, showcasing the potential for biological black boxes with specific functions.
The study reveals the importance of targeting specific cell regions to combat oxidative stress. By using novel synthetic molecules, researchers can now understand how cells respond to oxidative stress and identify weaker parts that need protection.
Physicists at NIST have demonstrated radio-frequency cooling of a large object by reducing its thermal motion with radio waves. They cooled a silicon cantilever to -228 C (-379 F) using an RF circuit, which may be more practical than optical techniques in some cases.
A new study reveals that a voltage-sensitive phosphatase, Ci-VSP, converts electrical signals to chemical ones and is activated by depolarization, regulating phosphoinositide levels. This discovery sheds light on common principles of voltage sensing between ion channels and VSP.
Researchers found that electrons in graphene behave like quantum billiard balls, with wave-like properties and interference patterns. The discovery could lead to new applications such as ballistic transistors and resonant cavities for electrons.
A recent study published in World Journal of Gastroenterology found a significant association between GERD and obesity in women, but not men. The researchers suggest that estrogen may play a role in this correlation.
A set of practical ethical guidelines for biobank research has been put forward by Swedish ethics researchers, providing a comprehensive solution to the complex regulations surrounding tissue samples. The framework balances conflicting interests and offers a peer-review process to ensure scrutiny.
The US Department of Homeland Security is testing current bridge designs and investigating advances in steel and reinforced concrete to explore shielding cables and connections with protective sleeves or covers. The goal is to fortify bridges like Superman's blue suit, making them resistant to terrorist sabotage.
The study combines field studies and remote-sensing data to assess the ecological functioning of wetlands in a landscape. The researchers developed statistical models that can predict denitrification potential from easily measurable properties of the soil, helping guide management priorities in a watershed.
Researchers found that oil spill clean-up workers were more likely to experience lower and upper respiratory tract symptoms, including chronic cough and phlegm. The effects persisted for over a year after the last clean-up activity but eventually declined, suggesting partial reversibility.
Researchers at NIST have discovered a highly sought-after type of atomic magnetic moment arrangement in antiferromagnets. The findings, published in Nature Materials, reveal evidence of a rare quantum paramagnetic spin state that weakly responds to external magnetic fields.