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Science News Archive March 2011


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.

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.

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.

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.

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.

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.

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.

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.

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.

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.

Apple iPhone 17 Pro

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

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.

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.

Aranet4 Home CO2 Monitor

Aranet4 Home CO2 Monitor tracks ventilation quality in labs, classrooms, and conference rooms with long battery life and clear e-ink readouts.

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.

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.

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.

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.

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.

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.

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.

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.

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.

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.

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.

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.

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.

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.

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.

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.

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.

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.

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.

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.

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.

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.

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.

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.

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.

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.

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.

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.

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.

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.