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Science News Archive 2009 - Page 265


Page 265 of 277

Process can cut the cost of making cellulosic biofuels

A patented Michigan State University process pretreats corn-crop waste to enhance its usefulness and reduce costs. The AFEX (ammonia fiber expansion) method breaks down cellulose and hemicellulose in plants more efficiently, allowing for the creation of biofuels from cellulose without added nutrients.

SourceMichigan State University·JournalProceedings of the National Academy of Sciences·DateJan 22, 2009

Personal disaster preparedness

A recent survey by Medical College of Wisconsin researchers found that residents in Metro Milwaukee may not be as well-prepared for disasters as the rest of the country. The survey revealed that only 37% of respondents had taken a first-aid course, and 15% had volunteered to help prepare for or respond to a major emergency.

Quantum teleportation between distant matter qubits

Researchers at the University of Maryland and the University of Michigan have teleported quantum information directly from one atom to another over a substantial distance. They achieved this feat by entangling the quantum states of two individual ytterbium ions, allowing for the transfer of information without physical medium.

SourceUniversity of Maryland·JournalScience·DateJan 22, 2009

Tips from the American Journal of Pathology

Two studies identified a novel biomarker for metastatic bladder cancer and discovered stem cell factor's role in airway remodeling in asthma. Additionally, researchers found that Staphlococcus aureus beta-toxin causes lung injury in pneumonia, while rosiglitazone may reduce the severity of scleroderma.

SourceAmerican Journal of Pathology·JournalAmerican Journal Of Pathology·DateJan 22, 2009

New insight into how bees see

Honeybees can learn to recognise human faces even when seen from different viewpoints due to their ability to interpolate or image average previously learnt views. The study suggests that bee brains have evolved clever mechanisms for problem solving which may help develop improved models for AI face recognition systems.

SourceMonash University·JournalPLOS ONE·DateJan 22, 2009

Unexpected finding opens up new way to stop autoimmune diseases and transplant rejection

Researchers have discovered a unique antibody that blocks the S1P receptor on T cells, reducing their numbers in the bloodstream and potentially treating autoimmune disorders such as colitis, lupus, and rheumatoid arthritis. The study's findings suggest a new horizon for reversing disabling and often fatal conditions.

Nano-tetherball biosensor precisely detects glucose

A team of researchers from Purdue University has developed a precise biosensor for detecting blood glucose and potentially many other biological molecules. The device, resembling a tiny cube-shaped tetherball, uses single-wall carbon nanotubes anchored to gold-coated nanocubes to conduct electrical signals.

SourcePurdue University·JournalACS Nano·DateJan 22, 2009

Scientists find new way to produce hydrogen

Researchers at Penn State University have discovered a way to produce hydrogen by exposing aluminum clusters to water, leveraging their unique geometric structures. The process enables the production of hydrogen gas without heat or energy input, opening up new possibilities for clean energy applications.

SourcePenn State·JournalScience·DateJan 22, 2009

Invasions by alien plants have been mapped in European Union

An international team mapped alien plant invasions across Europe, finding highest risks in agricultural and urban ecosystems. The study revealed a consistent pattern of invasion levels across European regions, with low levels in natural grasslands and Mediterranean vegetation.

SourceWiley·JournalDiversity and Distributions·DateJan 22, 2009

Decline in health among older adults affected by Hurricane Katrina

Researchers found a significant increase in morbidity rates among older adults affected by Hurricane Katrina, with emergency department visits and hospitalization rates also rising. Displacement played a major role in health outcomes, with survivors experiencing moderate to severe damage to their homes and financial instability.

SourceJohns Hopkins Bloomberg School of Public Health·JournalThe American Journal of Managed Care·DateJan 22, 2009

Microbes fuel energy debate

Researchers focus on microbes fermenting lignocellulosic biomass to produce bioethanol and biodiesel, reducing greenhouse gas emissions. Biofuel production requires a major effort in biochemical engineering to scale up and make it cost-effective.

SourceSpringer·JournalJournal of Industrial Microbiology & Biotechnology·DateJan 22, 2009

Schizophrenic patients' frozen faces harm social interactions

Research suggests that schizophrenia patients' reduced non-verbal expressivity is linked to poor social skills and an inability to accurately imagine others' thoughts and feelings. This impairment contributes to difficulties in conversation and social interactions, making it challenging for people with schizophrenia to engage with others.

SourceBMC (BioMed Central)·JournalBehavioral and Brain Functions·DateJan 22, 2009

Recalibrating 'fight or flight'

A Canadian/U.S. research team has reported a therapeutic model exploiting the natural dynamics of the 'fight or flight' system to stimulate recovery from chronic stress disorders. The HPA axis dysfunction may become chronic if driven far from its natural homeostatic rest point, leading to disorders like CFS, depression, and PTSD.

SourcePLOS·JournalPLOS Computational Biology·DateJan 22, 2009

Pacific people spread from Taiwan

New research suggests most Pacific populations originated in Taiwan around 5,200 years ago, tracing the settlement of the Pacific through vocabulary from Austronesian languages. The study reveals expansion pulses and pauses, linked to technological advances such as better canoes.

SourceUniversity of Auckland·JournalScience·DateJan 22, 2009

Eating less may not extend life

A new study found that caloric restriction does not extend the life of lean mice, contradicting previous findings. Obese mice, however, benefited from caloric restriction, suggesting it may be a useful strategy for weight loss. The researchers propose that energy expenditure and intake should be in balance.

SourceUniversity of Southern California·JournalJournal of Nutrition·DateJan 22, 2009

The continents as a heat blanket

Scientists from GFZ German Research Centre for Geosciences developed a numerical model to calculate future continent positions. The continents function as a thermal blanket, causing heat accumulation and super-continent break-up., A self-regulating system develops, resulting in reorganization of mantle convection.

SourceHelmholtz Association·JournalPhysics of The Earth and Planetary Interiors·DateJan 22, 2009

Hope for restoring injured nerves

Scientists at the University of Utah identified a worm gene crucial for damaged nerve cells to regenerate and showed that over-activating it can speed up nerve regeneration. The study's findings offer hope for new treatments for nerves injured by trauma or disease.