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Science News for March 19, 2008


'Designer enzymes' created by chemists at UCLA, U. of Washington

The research successfully created designer enzymes for a chemical reaction known as the Kemp elimination, a non-natural chemical transformation in which hydrogen is pulled off a carbon atom. The researchers also designed an active site for the aldol reaction, involving at least six chemical transformations.

SourceUniversity of California - Los Angeles·JournalNature·DateMar 19, 2008

Study verifies that cholesterol-associated gene variants can predict cardiovascular events

A study led by Massachusetts General Hospital confirms that a combination of gene variants associated with cholesterol levels reflect patients' cholesterol levels and increase risk of heart attack, stroke, or sudden cardiac death. The study's findings provide a foundation for personalized medicine and may lead to the development of mor...

SourceMassachusetts General Hospital·JournalNew England Journal of Medicine·DateMar 19, 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.

Tug of war in the cells

In a tug-of-war-like mechanism, opposing motor teams determine the direction of cargo transport in cells. The winning team transports cargo quickly, while losing motors are removed from the microtubule.

SourceMax-Planck-Gesellschaft·JournalProceedings of the National Academy of Sciences·DateMar 19, 2008

Asthma medicines often not prescribed as national guidelines recommend

Despite national guidelines for asthma treatment issued in 1997, many patients still do not receive prescription inhalers for the safest and most effective long-term control of the disease. Researchers found that elderly and minority patients were less likely to be prescribed long-acting controller medications.

SourceOhio State University·DateMar 19, 2008

Ancient lemur's little finger poses mystery

Analysis of ancient Hadropithecus stenognathus hand bones reveals a novel joint configuration on the little finger, differing from other primates. The discovery highlights the diversity of lemurs that existed over 2,000 years ago.

SourceUniversity of Alberta·JournalJournal of Human Evolution·DateMar 19, 2008
DJI Air 3 (RC-N2)

DJI Air 3 (RC-N2) captures 4K mapping passes and environmental surveys with dual cameras, long flight time, and omnidirectional obstacle sensing.

Floating a big idea: MIT demos ancient use of rafts to transport goods

MIT researchers used computer analysis and replica construction to demonstrate the feasibility of ancient Pacific trade routes using balsa rafts. The study shows that these rafts could carry up to 30 tons of cargo and had a complex steering mechanism.

SourceMassachusetts Institute of Technology·JournalJournal of Anthropological Research·DateMar 19, 2008

Stopping a deadly killer

The University of Pittsburgh Center for Vaccine Research has received a $11.4 million grant to study tuberculosis using new imaging technologies. The goal is to develop more effective treatments that can be tailored to individual patients, potentially improving survival rates and curtailing the global TB epidemic.

SourceUniversity of Pittsburgh Schools of the Health Sciences·DateMar 19, 2008
Apple iPhone 17 Pro

Apple iPhone 17 Pro delivers top performance and advanced cameras for field documentation, data collection, and secure research communications.

Coming soon: Cell therapies for diabetes, cancer?

Researchers are exploring stem cell transplants to provide insulin cells for a bioartificial pancreas, addressing the shortage of human pancreatic islet tissue. They also aim to target and destroy cancer stem cells to improve therapies and develop reversible immortalized cell lines.

SourceCell Transplantation Center of Excellence for Aging and Brain Repair·JournalCell Transplantation·DateMar 19, 2008

Hispanics with clogged arteries at greatest risk of stroke, heart attack

A study published in Neurology found that Hispanics with even small amounts of plaque build-up in the carotid artery are up to four times more likely to suffer or die from a stroke or heart attack. The study also highlights the importance of measuring plaque thickness by ultrasound as a simple tool for guiding stroke prevention therapies.

SourceAmerican Academy of Neurology·JournalNeurology·DateMar 19, 2008

Spotting the next GM-like controversy before it happens

UK scientists identify 25 new biodiversity threats and opportunities until 2050, prioritizing research to mitigate surprise issues like GM crops. Horizon scanning aims to inform policy decisions, cutting the need for last-minute fixes on foreseeable problems.

SourceWiley·JournalJournal of Applied Ecology·DateMar 19, 2008

Stanford researchers developing 3-D camera with 12,616 lenses

Stanford researchers are developing a 3D camera with 12,616 tiny lenses to produce detailed depth maps, enabling applications such as facial recognition, biological imaging, and 3D printing. The technology has the potential to improve spatial vision for robots and enable new tasks beyond human capabilities.

SourceStanford University·DateMar 19, 2008
Apple iPad Pro 11-inch (M4)

Apple iPad Pro 11-inch (M4) runs demanding GIS, imaging, and annotation workflows on the go for surveys, briefings, and lab notebooks.

Less can be more, for plant breeders too

Researchers have developed a tool to rapidly silence specific genes in rice, enabling faster breeding and improved crop performance. This breakthrough uses artificial miRNAs to target and disable genes of interest, with potential applications in hybrid seed production and enhanced resistance to pathogens and insects.

SourcePLOS·JournalPLOS ONE·DateMar 19, 2008

Scientists see Norwalk virus' Achilles heel

Researchers at the Canadian Light Source synchrotron have determined the structure of the enzyme responsible for the Norwalk virus's genetic replication. This breakthrough could lead to the development of drugs that can effectively treat outbreaks of this highly contagious and untreatable bug.

SourceCanadian Light Source, Inc.·JournalJournal of Biological Chemistry·DateMar 19, 2008

Research on consequences: Hyperactive girls face problems as adults

A study found that hyperactive girls are more likely to experience serious adjustment problems in adulthood, including smoking, poor job performance, and abusive relationships. The research suggests that early intervention programs targeting hyperactivity in elementary school may be crucial in preventing these issues.

SourceUniversity of Montreal·JournalArchives of General Psychiatry·DateMar 19, 2008

AGU Journal Highlights -- March 19, 2008

A new study finds that higher CO2 concentrations increase phytoplankton productivity in the Ross Sea, Antarctica, promoting larger diatom chains. Additionally, research suggests that to stabilize global temperatures, future greenhouse gas emissions must be eliminated, committing the climate system to warming on centennial timescales.

SourceAmerican Geophysical Union·JournalGeophysical Research Letters·DateMar 19, 2008
Apple MacBook Pro 14-inch (M4 Pro)

Apple MacBook Pro 14-inch (M4 Pro) powers local ML workloads, large datasets, and multi-display analysis for field and lab teams.

Drug prevents dangerous tick diseases

A single injection of doxycycline hyclate has shown 100% effectiveness in preventing Lyme disease and Anaplasmosis in mice, offering a promising new treatment option. Researchers are planning to test different release kinetics and delivery methods to develop a slow-release patch for broader protection.

SourceMicrobiology Society·JournalJournal of Medical Microbiology·DateMar 19, 2008

Disgusting videos used to study coping methods

Researchers used fMRI to study two emotion regulation techniques: cognitive reappraisal and expressive suppression. Cognitive reappraisal reduced negative emotions by reinterpretating the meaning of disgusting images, while expressive suppression increased neural activity in the amygdala and insula.

SourceStanford University·JournalBiological Psychiatry·DateMar 19, 2008

Sleep deprivation used to diagnose sleepwalking

A new study found that sleep deprivation can precipitate sleepwalking in predisposed individuals and may serve as a valuable tool in diagnosing the disorder. The study showed that sleep deprivation significantly increased the proportion of sleepwalkers experiencing complex episodes, facilitating diagnosis.

SourceWiley·JournalAnnals of Neurology·DateMar 19, 2008

Does ADHD look the same in youth of different races?

A study examines childhood ADHD in underrepresented minorities, highlighting obstacles faced by families and providing recommendations for assessment and treatment. Effective treatments exist, but many minority children lack culturally sensitive assessments, potentially leading to devastating results.

SourceSAGE·JournalJournal of Attention Disorders·DateMar 19, 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.

Findings could improve fuel cell efficiency

Researchers at Duke University have developed a ceramic membrane that allows fuel cells to operate at low humidity and higher temperatures, potentially improving efficiency. This new membrane could address current limitations in fuel cell technology and attract investment for its commercialization.

SourceDuke University·JournalJournal of Membrane Science·DateMar 19, 2008

Korean adoptees in US seek identity via peers or cultural exploration

A University of Oregon study reveals that Korean adoptees in the US often explore their ethnic identities through either social exposure with peers or cultural heritage. The research found that those who don't explore may assimilate into white culture, while those who do may develop a symbolic attachment to their international heritage.

SourceUniversity of Oregon·JournalAmerican Journal of Sociology·DateMar 19, 2008

How iron gets into the North Pacific

Researchers Phoebe Lam and James Bishop found that the Kamchatka Peninsula and Kuril Islands are the key sources of iron in the Western North Pacific, contrary to previous assumptions. This discovery has significant implications for understanding climate change and the role of iron in the ocean carbon cycle.

SourceDOE/Lawrence Berkeley National Laboratory·JournalGeophysical Research Letters·DateMar 19, 2008
Fluke 87V Industrial Digital Multimeter

Fluke 87V Industrial Digital Multimeter is a trusted meter for precise measurements during instrument integration, repairs, and field diagnostics.

Rensselaer professor Fengyan Li awarded Sloan Research Fellowship

Fengyan Li, a Rensselaer Polytechnic Institute assistant professor, has been recognized as a 2008 Sloan Research Fellow. Her research focuses on developing computer algorithms for solving problems in sciences and engineering, with applications in various fields such as weather forecasting, pollution control, and image processing.

SourceRensselaer Polytechnic Institute·DateMar 19, 2008

The difference in eating habits between men and women

Research shows that men are more likely to eat meat and poultry products, including duck and veal, whereas women favor vegetables like carrots and tomatoes. Women also have a preference for dry foods and certain fruits, such as strawberries and blueberries.

SourceAmerican Society for Microbiology·DateMar 19, 2008

Woodburn, Ore.: a microcosm of immigrant shifts in America

The city's transformation provides insight into the shifting dynamics of belonging and identity in small- to medium-sized U.S. cities. Woodburn's farmworker housing struggle reflects a deep resistance to Mexican immigrants, yet today there are visible changes in multicultural identity.

SourceUniversity of Oregon·JournalCultural Geographies·DateMar 19, 2008
GoPro HERO13 Black

GoPro HERO13 Black records stabilized 5.3K video for instrument deployments, field notes, and outreach, even in harsh weather and underwater conditions.

Study links dietary folate intake to genetic abnormalities in sperm

A new study found that men with lower folate intake have higher rates of chromosomal abnormalities in their sperm, which could affect reproductive health and birth outcomes. Higher folate intake was associated with lower rates of these abnormalities.

SourceUniversity of California - Berkeley·JournalHuman Reproduction·DateMar 19, 2008

Neuronal regulators offer potential targets for cancer

Researchers at Harvard Medical School have identified proteins that promote tumor growth in certain types of cancer, including breast and ovarian cancer. Targeting these proteins with small molecules may lead to new therapeutic options for patients.

SourceHarvard Medical School·JournalNature·DateMar 19, 2008

Depressed caregivers hostile, not warm, to children

A new study found that caregivers with moderate to severe depressive symptoms exhibited lower levels of warmth and higher levels of hostility towards their low-income children with asthma. Researchers used data from a longitudinal study examining treatment adherence among these families.

SourceBlackwell Publishing Ltd.·JournalFamily Process·DateMar 19, 2008
Apple Watch Series 11 (GPS, 46mm)

Apple Watch Series 11 (GPS, 46mm) tracks health metrics and safety alerts during long observing sessions, fieldwork, and remote expeditions.

Scientists find color vision system independent of motion detection

A new study by NYU and University of Würzburg researchers found that color vision does not contribute to motion detection in fruit flies, challenging previous assumptions. The findings suggest two separate functional pathways for color and motion processing.

SourceNew York University·JournalProceedings of the National Academy of Sciences·DateMar 19, 2008

Molecular biology of sleep apnea could lead to new treatments

Researchers have identified a link between protein misfolding and sleep apnea, finding that cells with healthy proteins may repair themselves, while unhealthy cells self-destruct. A drug called salubrinal shows promise in preventing cell death, but its toxicity limits its potential.

SourceUniversity of Pennsylvania School of Medicine·DateMar 19, 2008

Punishment does not earn rewards or cooperation, study finds

A study by researchers at Harvard University found that punishing others does not increase the average payoff of a group. Instead, it leads to reduced individual payoff and a downward spiral of retaliation. The study suggests that punishment may have evolved for dominance hierarchy and ownership defense, rather than cooperation.

SourceHarvard University·JournalNature·DateMar 19, 2008
Rigol DP832 Triple-Output Bench Power Supply

Rigol DP832 Triple-Output Bench Power Supply powers sensors, microcontrollers, and test circuits with programmable rails and stable outputs.

Good luck indeed: 53 million-year-old rabbit's foot bones found

Researchers have discovered 53 million-year-old rabbit's foot bones that predates the oldest previously known rabbits by several million years. The fossils found in west-central India show advanced rabbit-like features and extend the record of rabbits on the Indian subcontinent by 35 million years.

SourceJohns Hopkins Medicine·DateMar 19, 2008

Robot fetches objects with just a point and a click

Researchers at Georgia Institute of Technology developed a robot called El-E that can find and deliver everyday items using a direct laser pointer interface. The robot uses multiple methods to localize objects and grasp them, making it particularly useful for patients with severe mobility challenges.

SourceGeorgia Institute of Technology·DateMar 19, 2008