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Science News for August 12, 2010


Scientists discover oldest evidence of human stone tool use and meat-eating

Researchers found bones bearing unambiguous evidence of stone tool use, including cut marks made while carving meat off the bone. The discovery provides the first evidence that Lucy's species, Australopithecus afarensis, used stone tools and consumed meat, shifting the known timeframe of a game-changing behaviour for our ancestors.

SourceMax-Planck-Gesellschaft·JournalNature·DateAug 12, 2010

Single neurons can detect sequences

Researchers at University College London found that single neurons and even individual dendrites can effectively distinguish between different temporal sequences of incoming information. This challenges the widely held view that large numbers of neurons working together are necessary for sequence processing in the brain.

SourceUniversity College London·JournalScience·DateAug 12, 2010

College students exhibiting more severe mental illness, study finds

A study found that severe mental illness is more common among college students than a decade ago, with a shift towards more severe psychological problems. The number of students on psychiatric medicines increased, but the percentage of students acknowledging suicidal thoughts decreased.

SourceAmerican Psychological Association·DateAug 12, 2010

Citizen scientists discover rotating pulsar

Researchers credited with discovery, PSR J2007+2722, a neutron star rotating 41 times per second, has no orbiting companion and is likely recycled or young, sparking interest in basic physics of neutron stars. This is the first genuine astronomical discovery by a public volunteer distributed computing project.

SourceU.S. National Science Foundation·DateAug 12, 2010
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.

SUMO works with replication protein A complex to repair DNA

Researchers discovered that SUMO modifies RPA70, essential for DNA repair by homologous recombination. The connection offers a potential target to short-circuit repair, making cells more vulnerable to chemotherapy and ionizing radiation.

SourceUniversity of Texas M. D. Anderson Cancer Center·JournalMolecular Cell·DateAug 12, 2010

The cancer biomarker conundrum: Too many false discoveries

Despite advancements in cancer biomarker research, many initial breakthroughs fail to translate to clinical success due to issues with study design and interpretation. Seven biomarkers initially hailed as promising have been reevaluated, highlighting problems with pre-analytical, analytical, and post-analytical study design.

SourceJournal of the National Cancer Institute·JournalJNCI Journal of the National Cancer Institute·DateAug 12, 2010

US greenhouse gas emissions and capture, regionally

A new report by the American Society of Agronomy highlights the role of agriculture in greenhouse gas emissions and capture. The study finds that adopting conservation agricultural systems can increase carbon sequestration and reduce GHG emissions. However, knowledge gaps remain in understanding the effectiveness of these practices.

SourceAmerican Society of Agronomy·DateAug 12, 2010
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.

Carnegie Mellon's Steinbrenner Institute helps grow green jobs

The Steinbrenner Institute is helping Heritage Community Initiatives train local workers to create a pool of green collar employees. The program has spawned over 800,000 green collar workers nationwide and provides skills in industries like construction, deconstruction, and home energy retrofits.

SourceCarnegie Mellon University·DateAug 12, 2010

Over-the-counter painkiller may help ease emotional slights, UF study finds

A University of Florida researcher found that acetaminophen alleviates social pain from hurt feelings, suggesting an interrelation between physical and emotional pain. Participants who took acetaminophen daily for three weeks reported fewer emotional sufferings and less brain activity linked to social rejection.

SourceUniversity of Florida·JournalPsychological Science·DateAug 12, 2010
Davis Instruments Vantage Pro2 Weather Station

Davis Instruments Vantage Pro2 Weather Station offers research-grade local weather data for networked stations, campuses, and community observatories.

Teaching robot helps children to use wheelchair

A new robotic wheelchair system, ROLY, is being developed to assist young children with disabilities in learning to drive. The system uses a joystick with force feedback assistance to help children develop driving skills at their own pace.

SourceBMC (BioMed Central)·JournalJournal of NeuroEngineering and Rehabilitation·DateAug 12, 2010

Immune overreaction may enable recurrent urinary tract infections

Severe inflammatory responses to initial UTI cause bladder damage and allow infection to persist longer. Immunodeficient mice lacking these acute inflammatory responses are protected from chronic bladder infection. Researchers hope to identify patients vulnerable to recurrent infection using markers discovered in the study.

SourcePLOS·JournalPLOS Pathogens·DateAug 12, 2010

Elevated heart rate over time linked to significant risk of death

A study published in the European Heart Journal found that patients with an elevated resting heart rate over a five-year period were at a significantly increased risk of death from both cardiovascular and all-cause mortality. Tracking heart rate over time can provide a simple yet important marker of health issues, allowing for potentia...

SourceNewYork-Presbyterian·JournalEuropean Heart Journal·DateAug 12, 2010

Expensive new blood pressure meds no better than generics

A new study found that expensive brand-name medications for high blood pressure are no better than generic diuretics in preventing cardiovascular disease. The ALLHAT trial, which followed patients with high blood pressure for eight to 13 years, showed that the diuretic was superior in two measures: stroke death rate and hospitalization...

SourceLoyola Medicine·DateAug 12, 2010
Apple iPhone 17 Pro

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

Immune responses during pregnancy linked to schizophrenia among offspring

A new study published in Schizophrenia Research found that exposure to certain immune proteins during pregnancy is linked to an increased risk of schizophrenia in offspring. Maternal levels of interleukin-8 were associated with structural brain changes in children diagnosed with schizophrenia.

SourceTemple University·JournalSchizophrenia Research·DateAug 12, 2010

Poor kidney function common among HIV-infected injection drug users

A study reveals that HIV-infected injection drug users are more likely to develop proteinuria, a marker of kidney disease, which can lead to kidney failure. Clinicians should aggressively screen this population for proteinuria and consider them candidates for medical treatments that protect the heart and kidneys.

SourceAmerican Society of Nephrology·JournalClinical Journal of the American Society of Nephrology·DateAug 12, 2010

Experts say federal nuclear waste panel overlooks public mistrust

A special White House panel on high-level radioactive waste needs to focus more on social and political acceptability. Public mistrust has fueled failed attempts to effectively work with those affected, and addressing this is crucial for developing a publicly acceptable solution.

SourceWashington State University·JournalScience·DateAug 12, 2010

Implantable silk metamaterials could advance biomedicine, biosensing

Researchers created the first large area metamaterial structures on implantable bio-compatible silk substrates, providing a promising path towards developing novel biomaterial-inspired biosensors and biodetectors. The silk metamaterials retained their resonance properties while implanted under muscle tissue, opening up possibilities fo...

SourceTufts University·JournalAdvanced Materials·DateAug 12, 2010
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.

New rheumatoid arthritis criteria to stave off disabling disease for thousands of people

The new criteria redefine RA by classifying it based on the confirmed presence of synovitis in at least one joint, absence of alternative diagnoses, and a combined score from four domains. Early diagnosis and treatment can prevent destructive joint damage with the help of synthetic and biological disease-modifying antirheumatic drugs.

SourceBMJ Group·JournalAnnals of the Rheumatic Diseases·DateAug 12, 2010

Wax, soap clean up obstacles to better batteries

Researchers at PNNL developed a simple one-step method to create high-capacity lithium manganese phosphate electrodes using paraffin wax and soap. The new process enables the exploration of cheaper alternatives to current lithium-ion-metal oxide batteries, with potential applications in electric vehicles and consumer electronics.

SourceDOE/Pacific Northwest National Laboratory·JournalNano Letters·DateAug 12, 2010

Asteroid found in gravitational 'dead zone'

Asteroid 2008 LC18 is found in the L5 stability region of Neptune, with an estimated diameter of 100 kilometers. The discovery suggests a population of similar asteroids at L5, outnumbering those in the main asteroid belt.

SourceCarnegie Institution for Science·DateAug 12, 2010
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.

Illinois researchers use pyrosequencing to study canine intestinal bacteria

A new method of DNA sequencing has helped researchers uncover the phylogeny of a healthy dog's gut, shedding light on how diet affects gastrointestinal infections. The study found that dogs have diverse bacterial communities, with Firmicutes and Bacteriodetes being the most prevalent.

SourceUniversity of Illinois College of Agricultural, Consumer and Environmental Sciences·JournalPLOS ONE·DateAug 12, 2010
AmScope B120C-5M Compound Microscope

AmScope B120C-5M Compound Microscope supports teaching labs and QA checks with LED illumination, mechanical stage, and included 5MP camera.

Study to investigate giant Saharan dust storms

A £1m project will investigate giant desert storms of the Sahara, which can affect weather systems and climate change. The study aims to improve climate prediction models and reduce uncertainties in predicting climate and weather impacts on human health.

SourceUniversity of Leeds·DateAug 12, 2010

'Fused' people eager to die and kill for their group, research shows

A new psychology study found that individuals with strong ties to their groups are willing to sacrifice themselves to save fellow compatriots. The study, published in Psychological Science, showed that 75% of 'fused' respondents would jump to their deaths to save five group members.

SourceUniversity of Texas at Austin·JournalPsychological Science·DateAug 12, 2010

ASH recommends cross-disciplinary engagement to advance regenerative medicine

The American Society of Hematology (ASH) has developed recommendations for advancing regenerative medicine. The key focus areas include recognizing regenerative medicine as a priority at the National Institutes of Health (NIH), re-examining clinical trial methodologies, and improving communication between basic and clinical scientists.

SourceAmerican Society of Hematology·JournalBlood·DateAug 12, 2010
Fluke 87V Industrial Digital Multimeter

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

Federal nuclear waste panel overlooks public mistrust, experts say

A renewed federal effort to fix the nation's stalled nuclear waste program is focusing too much on technological issues, neglecting public mistrust. Social science experts warn that ignoring these concerns increases the chances of repeating past failures, such as Yucca Mountain.

SourceLehigh University·JournalScience·DateAug 12, 2010

New case series section in European Urology

A new case series in European Urology introduces a purely intrafascial approach for robot-assisted laparoscopic prostatectomy, aiming to avoid damage to critical structures. The study reports promising results with no perioperative major complications, but highlights the need for well-designed studies to evaluate its advantages.

SourceEuropean Association of Urology·JournalEuropean Urology·DateAug 12, 2010
Anker Laptop Power Bank 25,000mAh (Triple 100W USB-C)

Anker Laptop Power Bank 25,000mAh (Triple 100W USB-C) keeps Macs, tablets, and meters powered during extended observing runs and remote surveys.

An IRCM researcher pinpoints the cellular mechanism responsible for modulating the permeability of blood vessels

A new cellular mechanism has been identified for modulating blood vessel permeability, which could have a significant impact on the treatment of cancerous tumours. Nitrosylation of beta-catenin protein by nitric oxide increases vascular permeability, potentially leading to the blockage of tumour growth.

SourceInstitut de recherches cliniques de Montreal·JournalMolecular Cell·DateAug 12, 2010

New nanoscale transistors allow sensitive probing inside cells

Researchers at Harvard University have developed nanowire-based V-shaped transistors that can be inserted into cells without damaging them. These devices allow for the measurement of ion flux or electrical signals within cells, and can even be fitted with receptors to probe for specific biochemicals.

SourceHarvard University·JournalScience·DateAug 12, 2010

Trusting people make better lie detectors

Researchers discovered that trusting people are more accurate at detecting lies and make better hiring decisions. They were also less likely to be deceived themselves. High trust individuals formed a more accurate impression of interviewees and chose honest candidates over dishonest ones.

SourceSAGE·JournalSocial Psychological and Personality Science·DateAug 12, 2010
Garmin GPSMAP 67i with inReach

Garmin GPSMAP 67i with inReach provides rugged GNSS navigation, satellite messaging, and SOS for backcountry geology and climate field teams.

The Materials Research Society's Von Hippel Award to L. Eric Cross

L. Eric Cross is recognized for his leadership in the science and applications of ferroelectric materials, with current work on flexoelectric composites offering a new generation of lead-free transducers. He has also made significant contributions to sonar undersea transducers and medical ultrasound machines.

SourcePenn State·DateAug 12, 2010

Extended solar minimum linked to changes in sun's conveyor belt

A new analysis suggests that a stretched Sun conveyor belt may have caused the prolonged phase of low activity in solar cycle 23, leading to longer solar cycles. The study provides insights into the factors controlling solar cycles and could improve predictions.

SourceNational Center for Atmospheric Research/University Corporation for Atmospheric Research·JournalGeophysical Research Letters·DateAug 12, 2010

Mutant mouse reveals potential genetic pathway for alcoholism

Researchers identified a mutation in the unc-79 gene that makes mice more sensitive to alcohol, suggesting a potential link between the gene and human susceptibility. The study found that the mutated mice consumed more alcohol than normal mice when offered a choice.

SourceUniversity of California - San Francisco·JournalPLOS Genetics·DateAug 12, 2010
CalDigit TS4 Thunderbolt 4 Dock

CalDigit TS4 Thunderbolt 4 Dock simplifies serious desks with 18 ports for high-speed storage, monitors, and instruments across Mac and PC setups.

Wide range of plants offer cellulosic biofuel potential, ecological diversity

A study from the Energy Biosciences Institute proposes using a range of plants, including perennial grasses and woody biomass, to produce sustainable cellulosic fuels. This approach could support ecosystem health worldwide by utilizing dedicated energy crops rather than repurposing food and feed crops.

SourceUniversity of California - Berkeley·JournalScience·DateAug 12, 2010

Scientists call for a global nuclear renaissance in new study

A new study proposes a 20-year plan to revive nuclear energy, aiming to replace aging power plants with efficient mini-reactors. The researchers suggest new reactor designs could use uranium more efficiently, reducing waste and ensuring energy security.

SourceImperial College London·JournalScience·DateAug 12, 2010

Potential novel genetic pathway for alcoholism

Researchers have identified a novel mutation in a mouse gene that may contribute to the genetic roots of alcoholism. The mutation, called Lightweight, affects sensitivity to alcohol and voluntarily consumed more alcohol by mutant mice. Further studies are needed to determine if this pathway is relevant to humans.

SourcePLOS·JournalPLOS Genetics·DateAug 12, 2010

Fermi detects 'shocking' surprise from supernova's little cousin

Astronomers detected gamma rays from a nova using NASA's Fermi Gamma-ray Space Telescope, surprising scientists with evidence of high-energy radiation. The discovery sheds new light on the power of nova explosions and their potential to emit gamma rays.

SourceNASA/Goddard Space Flight Center·JournalScience·DateAug 12, 2010
Apple AirPods Pro (2nd Generation, USB-C)

Apple AirPods Pro (2nd Generation, USB-C) provide clear calls and strong noise reduction for interviews, conferences, and noisy field environments.

Dangerous bacterium hosts genetic remnant of life's distant past

Researchers at Yale University discovered a functioning genetic remnant from a time before DNA existed in the stomach bacterium Clostridium difficile. This ancient RNA complex plays a critical role in infecting human cells and regulating gene expression, challenging scientists' understanding of life's origins.

SourceYale University·JournalScience·DateAug 12, 2010