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Science News Archive March 2011 - Page 20


Page 20 of 28

Giving children the power to be scientists

A new computer toolkit named nQuire has been developed to teach children how to think like scientists, enabling them to gather data, analyze results, and make informed decisions. The project shows that this approach can improve learning outcomes, maintain student enjoyment of science lessons, and develop critical thinking skills.

SourceUniversity of Nottingham·DateMar 9, 2011

Protein study helps shape understanding of body forms

Researchers at the University of Edinburgh have identified a protein that plays a key role in storing fat in the body. The study found that mice with high levels of this protein were more prone to developing unhealthy fat tissue after a high-fat diet, highlighting its potential as a target for obesity treatment.

SourceUniversity of Edinburgh·JournalDiabetes·DateMar 9, 2011
Kestrel 3000 Pocket Weather Meter

Kestrel 3000 Pocket Weather Meter measures wind, temperature, and humidity in real time for site assessments, aviation checks, and safety briefings.

International panel revises 'McDonald Criteria' for diagnosing multiple sclerosis

The revised McDonald Criteria simplify the diagnostic process by incorporating new data on MRI, speeding up diagnosis while maintaining accuracy. The updated criteria apply primarily to individuals with clinically isolated syndrome or symptoms consistent with a central nervous system inflammatory demyelinating disease.

SourceNational Multiple Sclerosis Society·JournalAnnals of Neurology·DateMar 9, 2011

Researchers find smoking may increase risk for lung disease

Researchers found that interstitial lung disease is associated with reduced total lung capacity and less emphysema in smokers. Smokers with abnormal lung densities are at increased risk for restrictive lung oxygen volume deficits.

SourceBrigham and Women's Hospital·JournalNew England Journal of Medicine·DateMar 9, 2011

Study: Negative classroom environment adversely affects children's mental health

A new study by the American Sociological Association reveals that classrooms with inadequate material resources and teachers feeling undervalued lead to worse mental health outcomes in first-grade children. The research emphasizes the importance of considering mental health as a crucial educational outcome.

SourceAmerican Sociological Association·JournalJournal of Health and Social Behavior·DateMar 9, 2011
Apple iPhone 17 Pro

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

Which side of the brain rotates a mental picture?

A multidisciplinary team found that patients with tumors in the right parietal cortex struggled to process categorical spatial information, leading to errors in mental rotation tasks. The left prefrontal cortex was also affected, causing difficulties in setting up specific programs within the brain for task organization.

SourceElsevier·JournalCortex·DateMar 9, 2011

Americans have higher rates of most chronic diseases than same-age counterparts in England

Researchers found that Americans experience higher rates of chronic disease and markers of disease than their English counterparts at all ages, despite the US having a higher healthcare spending. The study suggests that allocation of health care resources, lifestyle, and social conditions may play a role in the observed differences.

SourceOxford University Press UK·JournalAmerican Journal of Epidemiology·DateMar 9, 2011
Meta Quest 3 512GB

Meta Quest 3 512GB enables immersive mission planning, terrain rehearsal, and interactive STEM demos with high-resolution mixed-reality experiences.

New molecular robot can be programmed to follow instructions

Researchers have developed a programmable molecular robot that can move between track locations separated by 6nm and choose among different branches of a molecular track. The robot uses a 'fuel hairpin' molecule to propel itself along the track and receive routing instructions, enabling precise control over its route.

SourceAmerican Chemical Society·JournalNano Letters·DateMar 9, 2011

Tiny gems take big step toward battling cancer

A Northwestern University research team found that binding chemotherapy drugs to nanodiamonds significantly improves the effectiveness of cancer treatment, particularly in cases where tumors are resistant to conventional therapies. The discovery holds promise for treating aggressive cancers with fewer toxic side effects.

SourceNorthwestern University·JournalScience Translational Medicine·DateMar 9, 2011

Researchers selectively control anxiety pathways in the brain

A new study uses optogenetics to precisely identify neural circuits responsible for anxiety, identifying two key pathways in the amygdala region that promote or alleviate anxiety. This breakthrough brings psychiatric professionals closer to understanding anxiety disorders.

SourceU.S. National Science Foundation·JournalNature·DateMar 9, 2011

In adolescence, the power to resist blooms in the brain

Research using fMRI scans found that brain activity in areas responsible for emotional regulation increased significantly between ages 10 and 13, allowing children to better resist peer influence. This study provides insight into the brain's wiring during adolescence and may lay the foundation for future studies with clinical relevance.

SourceUniversity of Oregon·JournalNeuron·DateMar 9, 2011
GQ GMC-500Plus Geiger Counter

GQ GMC-500Plus Geiger Counter logs beta, gamma, and X-ray levels for environmental monitoring, training labs, and safety demonstrations.

Gene fusion mechanisms offer new clues to origin of pediatric brain tumors

Researchers have identified a pattern of DNA sequence called microhomology that plays a key role in the formation of gene fusions in pediatric brain tumors. This discovery sheds light on how these genomic rearrangements form in the early stages of cancer and may have implications for understanding other types of cancers.

SourceCold Spring Harbor Laboratory·JournalGenome Research·DateMar 9, 2011

3-D tracking of single molecules inside cells

Researchers developed a novel 3D cell imaging method using multifocal plane microscopy to track single molecules in live cells for extended periods. This technique overcomes previous limitations and enables the study of complex spatial-temporal dynamics of protein transport.

SourceAmerican Institute of Physics·DateMar 8, 2011
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.

IRBs could use pre-clinical data better

Researchers argue that IRBs often neglect reporting and methodological quality in preclinical experiments, leading to inadequate risk-benefit assessments. A proposed solution suggests considering evidence on risks and benefits of agents targeting related biological pathways.

SourcePLOS·JournalPLOS Medicine·DateMar 8, 2011

A more definitive test for a common sexually transmitted infection

A study from Rhode Island Hospital found a new test for Trichomonas vaginalis (TV) to be more accurate, detecting 100% true positives with no false positives. The test was found to be prevalent in women aged 36-45 and 51-60, indicating the need for routine screening for this common sexually transmitted infection.

SourceLifespan·JournalJournal of Clinical Microbiology·DateMar 8, 2011
Sony Alpha a7 IV (Body Only)

Sony Alpha a7 IV (Body Only) delivers reliable low-light performance and rugged build for astrophotography, lab documentation, and field expeditions.

Secrets of plague revealed

A new super-resolution microscopy technique reveals changes in protein concentration on human immune cells exposed to E.coli and Y.pestis toxins. This work provides insight into why some bacteria can evade the immune system.

SourceAmerican Institute of Physics·DateMar 8, 2011

A novel prognostic marker for biliary atresia

Researchers used DNA microarrays to analyze gene expression in livers from patients with biliary atresia and found a key regulator: RRAS. This gene plays a vital role in the pathogenesis of the disease, making it a potential prognostic biomarker.

SourceWorld Journal of Gastroenterology·JournalWorld Journal of Gastroenterology·DateMar 8, 2011

The foundations of empathy are found in the chicken

Researchers at the University of Bristol discovered that domestic hens exhibit a clear physiological and behavioral response to mild chick distress, suggesting an empathic capacity. The study used both behavioral and physiological methods to measure these traits in birds.

SourceUniversity of Bristol·DateMar 8, 2011
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.

The science behind the cape

Physiologist E. Paul Zehr uses Batman as a framework to discuss exercise and physical training, illustrating how the body responds to physical discipline. His approach connects science to popular culture, helping students understand physiology better.

SourceAmerican Physiological Society·JournalAJP Advances in Physiology Education·DateMar 8, 2011

How can robots get our attention?

A team of researchers has successfully programmed a robot to understand when it gains a human's attention and when it falls short. Using social cues, the robot achieves close to 80% accuracy in detecting whether someone is paying attention or ignoring it. The findings could pave the way for robots to engage with humans more effectively.

SourceGeorgia Institute of Technology·DateMar 8, 2011

Laughter really is the best medicine (for leg ulcers)

A five-year study found that traditional nursing care methods, such as compression bandages and support stockings, work just as well as ultrasound therapy in healing venous leg ulcers. Laughter may also play a role in improving blood flow and overall health for patients with these conditions.

SourceUniversity of Leeds·DateMar 8, 2011

Malaria's weakest link

Researchers discover that malaria parasite relies on host cell signaling pathways to proliferate. A class of cancer-fighting drugs targeting these pathways can effectively kill the parasite.

SourceEcole Polytechnique Fédérale de Lausanne·JournalCell Metabolism·DateMar 8, 2011
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.

Cleansing the soul by hurting the flesh: The guilt-reducing effect of pain

Researchers found that those primed to think of their own unethical nature subjected themselves to more pain, but experienced reduced feelings of guilt after the painful experience. Pain has been imbued with meaning as punishment, leading to its psychological effect of resolving guilt.

SourceAssociation for Psychological Science·JournalPsychological Science·DateMar 8, 2011

Urinary metabolomic profile and gastric cancer

Researchers used gas chromatography/mass spectrometry (GC/MS) technology to study urinary metabolite changes in mice with gastric cancer. The study identified low molecular weight biomarkers that may play a significant role in early diagnosis and screening of metastasis or recurrence.

SourceWorld Journal of Gastroenterology·JournalWorld Journal of Gastroenterology·DateMar 8, 2011

Now, the story can be told – how scientists helped ID 'Amerithrax'

Researchers at University of Maryland developed a genetic 'fingerprinting' tool to track down microbial suspects. By analyzing DNA sequences and identifying unique mutations, they helped the FBI link anthrax-laden letters to a specific test tube at Fort Detrick.

SourceUniversity of Maryland·JournalProceedings of the National Academy of Sciences·DateMar 8, 2011
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.

Viruses teach researchers how to protect corn from fungal infection

Researchers at the Donald Danforth Plant Science Center developed a corn variety resistant to fungal infection using a naturally found killer protein made by a virus. The single gene approach offers hope for effective solutions to control other pathogenic fungi and reduce crop losses.

SourceDonald Danforth Plant Science Center·JournalPlant Biotechnology Journal·DateMar 8, 2011

Study analyzes role of PARP enzyme in eukaryotes

Researchers analyzed evolutionary history of poly(ADP-ribose)polymerase (PARP) superfamily in eukaryotes, finding ancestral proteins with diverse functions. The study suggests that the PARP superfamily is larger than previously documented and will grow as more eukaryotic genomes become available.

SourceOhio Supercomputer Center·JournalBMC Evolutionary Biology·DateMar 8, 2011
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.

New instrument for analyzing viruses

Scientists have developed an instrument called PING that can analyze thousands of potential interactions between viruses and human cells. This device detects molecular interactions at a sensitivity 100- to 1,000-time greater than current methods, making it a promising tool for finding new treatments for viral infections.

SourceAmerican Institute of Physics·DateMar 8, 2011

UNC study finds oral tongue cancer increasing in young, white females

A UNC study found a significant increase in oral tongue squamous cell carcinoma among young white females, with incidence rates rising by 111% between 1975 and 2007. The researchers suggest that the epidemiology of this cancer may be unique and not associated with human papillomavirus or tobacco/alcohol use.

SourceUniversity of North Carolina Health Care·JournalJournal of Clinical Oncology·DateMar 8, 2011
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.

Migrating moths and songbirds travel at similar rates

Researchers found that night-flying moths match the migration speeds of songbirds, traveling between 30-65 km/h. Moths use favorable tailwinds to aid their journeys, while birds take advantage of winds from various directions.

SourceBiotechnology and Biological Sciences Research Council·DateMar 8, 2011

Improving risk/benefit estimates in new drug trials

Experts Jonathan Kimmelman and Alex John London argue that researchers predict success of interventions too optimistically in early stages of drug development. They suggest looking at past experiences and minimizing biases to improve estimates.

SourceMcGill University·JournalPLOS Medicine·DateMar 8, 2011
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.

The safety of daily magnesium oxide treatment for children with chronic constipation

A study published in the World Journal of Gastroenterology found that daily magnesium oxide treatment significantly increases serum magnesium concentrations in children with functional constipation. However, the magnitude of the increase appears modest, and younger age may be a relative risk factor for hypermagnesemia.

SourceWorld Journal of Gastroenterology·JournalWorld Journal of Gastroenterology·DateMar 8, 2011

How long does a tuning fork ring?

A team from Vienna and Munich has developed a numerical solver to predict the design-limited damping of mechanical resonators, enabling the creation of more efficient devices. The solver uses quantum mechanics to calculate the radiation of phonons from the resonator, removing the need for trial and error prototype fabrication.

SourceTechnical University of Munich (TUM)·JournalNature Communications·DateMar 8, 2011

ASGE initiative examines real-time endoscopic assessment of the histology of diminutive colorectal polyps

The ASGE has established guidelines for the use of real-time endoscopic assessment in managing diminutive colorectal polyps. The recommendations aim to minimize risk and delay while improving cost effectiveness of colonoscopy. Diminutive polyps are common, but pathological assessment can be costly and delay patient information.

SourceAmerican Society for Gastrointestinal Endoscopy·JournalGastrointestinal Endoscopy·DateMar 8, 2011

Real March Madness is relying on seedings to determine Final 4

A new model developed by Sheldon Jacobson predicts the most likely Final Four combinations based on seedings, rather than team performance. The model suggests that choosing a combination of two top-seeded teams, a No. 2 seed, and a No. 3 seed is the best bet for winning the office pool.

SourceUniversity of Illinois at Urbana-Champaign, News Bureau·JournalOmega·DateMar 8, 2011
Sky-Watcher EQ6-R Pro Equatorial Mount

Sky-Watcher EQ6-R Pro Equatorial Mount provides precise tracking capacity for deep-sky imaging rigs during long astrophotography sessions.

Roundworm could provide new treatment for sepsis

Researchers have identified a roundworm protein that can suppress systemic inflammation caused by sepsis, providing new potential treatment options. The protein, ES-62, triggers autophagy, a process that clears damage and promotes cell survival during stress situations.

SourceUniversity of Liverpool·JournalNature Immunology·DateMar 8, 2011

Making viruses pass for 'safe'

A team of scientists at the University of Pennsylvania has engineered a lentiviral vector that expresses CD47, a protein found on all cells, on its surface. This allows the virus to avoid being detected by the immune system, potentially making it safer for gene therapy and drug delivery.

SourceAmerican Institute of Physics·DateMar 8, 2011

Team uncovers dengue fever virus' molecular secrets

A team of researchers has made significant strides in understanding the life cycle of flaviviruses, including the dengue fever virus, which causes viral hemorrhagic fever and affects millions worldwide. The study provides new insights into the molecular details of viral replication and interactions with host cells.

SourceAmerican Institute of Physics·DateMar 8, 2011

No link between economic growth and child undernutrition rates in India

Despite economic growth, childhood undernutrition rates in India have remained relatively stable, with stunting prevalence decreasing and wasting rates showing minimal change. Direct investments in health interventions are necessary to address this issue, according to a new study published in PLOS Medicine.

SourcePLOS·JournalPLOS Medicine·DateMar 8, 2011
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.