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Science News Archive February 2013


Page 27 of 28

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.

New kind of extinct flying reptile discovered by scientists

A new kind of pterosaur, Eurazhdarcho langendorfensis, has been identified by scientists from the Transylvanian Museum Society, University of Southampton, and Museau Nacional. The fossilized bones are approximately 68 million years old and belong to the azhdarchids group.

The impressive aerial maneuvers of the pea aphid

Researchers found that pea aphids can land upright on their feet, using passive rotation to right themselves during free fall. The insects' ability to adapt to extreme situations has been studied in detail and published in Current Biology.

Amyloid imaging shows promise for detecting cardiac amyloidosis

A new PET test using 11C-PIB offers a non-invasive method to visualize amyloid deposits in the heart, providing valuable information for disease prognosis and treatment monitoring. The study demonstrated positive uptake of 11C-PIB in patients with cardiac amyloidosis.

Apple iPhone 17 Pro

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

20 hours of TV a week almost halves sperm count

A study published in the British Journal of Sports Medicine found that watching TV for more than 20 hours a week can almost halve sperm count, while exercising 15 or more hours a week can improve it by 73%. Moderate to vigorous exercise also has a positive impact on semen quality.

Hoodoos -- key to earthquakes?

Researchers studied two hoodoos in Red Rock Canyon to estimate the force necessary to break sandstone shafts, shedding light on ground motion during recent earthquakes. The study suggests median or low-level ground motion despite large quakes in the area, providing valuable constraints for probabilistic seismic hazard assessments.

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.

New criteria for automated preschool vision screening

The American Association for Pediatric Ophthalmology and Strabismus has revised its guidelines for automated preschool vision screening, focusing on detecting amblyopia risk factors in young children. The new criteria include separate thresholds for different age groups, lower referral rates for young children, and the use of tradition...

JoVE expands scientific video publication into chemistry

JoVE's new Chemistry section publishes a novel experimental approach to study antifreeze proteins, showcasing the potential for these proteins in cryopreservation and tissue preservation. By visualizing dynamic processes, JoVE aims to facilitate reproducible chemistry research.

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.

Chili peppers spark discovery

Researchers at Washington State University have made a breakthrough in repairing damaged brain cells using the active compound of chili peppers. The discovery has potential to provide relief for concussions and other health effects seen in athletes and head-injury victims.

MU scientists build harness for powerful radiation cancer therapy

Researchers at the University of Missouri have developed a gold nanoparticle that can transport alpha particles directly to small cancer tumors, reducing damage to healthy organs. The nanoparticle design enables researchers to keep more than 80% of the element inside for extended periods.

Can cancer be turned against itself?

Researchers found that melanoma cells can transfer proteins to the immune system, allowing it to gather crucial intelligence and develop cytokines to kill cancer cells. This process, called positive feedback loop, tips the scales in favor of the immune cells.

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 effort to find why replacement hips and knees go bad

A Case Western Reserve University researcher is creating ultra-high molecular weight polyethylene with embedded magnetic nanoparticles to monitor degradation and wear. The goal is to make implants more resistant to the environment inside the body.

Into the quantum Internet at the speed of light

A research team at the University of Innsbruck has successfully transferred quantum information from an atom to a single photon, paving the way for the construction of a quantum internet. This breakthrough enables the transfer of quantum information over optical channels between quantum computers.

Mutations in ASXL3 cause problems similar to Bohring-Opitz syndrome

Researchers discovered a novel syndrome caused by mutations in the ASXL3 gene, characterized by non-specific symptoms and intellectual disability. The study provides a molecular definition of this condition, which is difficult to distinguish from Bohring-Opitz syndrome, and highlights the importance of sharing genomic data.

Vitamin C supplements linked to kidney stones

A large population-based study of men found that those taking vitamin C supplements are twice as likely to develop kidney stones as non-supplement users. The risk increased with the frequency of supplement use. Conversely, multivitamin use was not associated with an increased risk of kidney stones.

Meta Quest 3 512GB

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

Tuberculosis in Nunavut can be controlled

A combined strategy of door-to-door visits and education campaigns is proposed to combat TB in Nunavut. The territory's TB rate is 66 times higher than the general Canadian population, but control can be achieved through a community approach combined with clear performance targets.

A little tag with a large effect

A recent study found that the epigenetic marker 5-hydroxymethylcytosine (5hmC) plays a vital role in the selective expression of genes, particularly in healthy brain cells. The study also discovered that changes in 5hmC distribution are associated with gene silencing and may contribute to cancer development.

Study finds incentive price for reducing HIV risk in Mexico

A study found that conditional cash transfer programs can improve behavior among gay men and male sex workers in Mexico City. Gay men would participate at a rate of over 75% if offered $7-8.75/month, while male sex workers would participate for significantly less, $156/year.

Plant scientists at CSHL demonstrate new means of boosting maize yields

A team of plant geneticists successfully demonstrated that weakening the FEA2 gene can increase meristem size and lead to more rows and kernels in maize plants. This research has significant implications for increasing yields of essential food crops as the global population is projected to reach 8-9 billion by mid-century.

Fluke 87V Industrial Digital Multimeter

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

Pioneering research helps to unravel the brain's vision secrets

A new study identified two neighboring areas of the cortex as processing different types of visual information independently. The researchers used magnetic fields to disrupt neural activity, revealing that one area plays a causal role in processing orientation, while another underpins shape recognition based on curvature differences.

DNA reveals mating patterns of critically endangered sea turtle

Researchers have discovered that female hawksbill turtles mate at the beginning of the season and store sperm for up to 75 days, laying multiple nests on beaches. The study also found that these turtles are mainly monogamous, with females pairing up with a single male throughout the breeding season.

Recreating natural complex gene regulation

Researchers developed a system to artificially simulate natural complex interactions between proteins that regulate genes, allowing for precise control over gene activation. This breakthrough enables scientists to better understand human gene regulation and develop new gene-based therapies.

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.

Prescription overdose rate reaches epidemic levels in NYC

A recent study found that the prescription opioid overdose rate in NYC increased seven-fold between 1990 and 2006, with fatalities concentrated among white residents. The study suggests a different public health approach is needed for this demographic, as their profile differs from heroin consumers.

Growth factor aids stem cell regeneration after radiation damage

Researchers at Duke University Medical Center have found that epidermal growth factor speeds the recovery of blood-making stem cells after exposure to radiation. The finding could lead to new treatments for cancer patients and those affected by dirty bombs or nuclear disasters.

Researchers discover mutations linked to relapse of childhood leukemia

A recent study has identified specific genetic mutations that lead to drug resistance and relapse in childhood leukemia. Researchers found 20 relapse-specific mutations, including a mutation in the NT5C2 gene, which may help doctors detect early signs of relapse and switch treatment strategies.

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.

Novel radiation therapy method shortens prostate cancer treatment time

A new radiation therapy method using volume-modulated arc therapy (VMAT) has been shown to significantly reduce prostate cancer treatment time by approximately 14%. The study found that VMAT patients had shorter average room times, with some patients experiencing similar treatment times as those using gold-marker tracking.

Nurses at forefront of genomics in health care

The National Institutes of Health (NIH) emphasizes the importance of genomic knowledge for nursing care, highlighting its relevance to advancing patient care. Genomic studies published in the Journal of Nursing Scholarship provide insights on genetic applications in nursing practice, including cancer risk assessment and prevention.

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.

Autism speaks through gene expression

Scientists at Johns Hopkins University and Tel Aviv University found that mutations in the NHE9 gene lead to a profound loss of function in an ion transporter, which may trigger seizures. This discovery could lead to new diagnosis or treatment options for autism patients.

A gut feeling about neural stem cells

Scientists at the University of Melbourne have successfully transplanted neural stem cells into mice, which then migrated to the gut and developed into functional neurons. This breakthrough could lead to new treatments for intestinal motility disorders such as Hirschsprung's disease.

Mental health parity reduces out of pocket expenses for patients

A study found that mental health parity reduced total and out-of-pocket spending for patients with major depression, bipolar disorder, and adjustment disorder. Despite no significant change in service utilization, individuals with more severe illnesses experienced lower expenses due to the policy.

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.

Finding out how today's teens tick

The UK government has invested £3.5 million in the Millennium Cohort Study to track the lives of 19,000 children born in 2000-01 as they enter adolescence. The study aims to understand risk behaviors, educational choices, and social relationships among teens.

If you are impulsive, take modafinil and count to 10

Researchers found that modafinil improved response inhibition in patients with initially poor impulse control, but had a detrimental effect in those with low initial impulsivity levels. The study suggests personalized medicine approaches may be necessary when prescribing modafinil for treatment of alcohol dependence.

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.

Programming cells: The importance of the envelope

The study reveals two independent mechanisms for fixing heterochromatin to the inner face of the nuclear envelope, using lamin A/C and the lamin-B receptor. This discovery sheds light on how the nuclear architecture in rod cells of nocturnal animals differs from normal cells.

Routes towards defect-free graphene

A new technique has been developed to grow graphene without defects, enabling the creation of larger sheets with aligned flakes and improved electron flow. This breakthrough has significant implications for industrial-scale graphene manufacturing and the development of graphene-based technologies in electronics, energy, and healthcare.

Bioelectric signals can be used to detect early cancer

Biologists at Tufts University have identified a unique bioelectric signal in cells that are likely to develop into tumors, which they can use to detect early cancer. By manipulating the electrical charge across cells' membranes, they can lower the incidence of cancerous cells and suppress abnormal cell growth.

Study: Infection preventionists know safe care

A study found that hospital infection preventionists generally agree on the effectiveness of certain practices in preventing healthcare-associated infections. These practices include alcohol-based hand rub, aseptic urinary catheter insertion, and maximum sterile barriers during central venous catheter insertion. However, non-certified ...

Nikon Monarch 5 8x42 Binoculars

Nikon Monarch 5 8x42 Binoculars deliver bright, sharp views for wildlife surveys, eclipse chases, and quick star-field scans at dark sites.

Aarhus University builds research station in North Greenland

The new research station will be equipped with modern laboratory facilities, equipment, and unmanned drones to monitor air composition. Researchers from Denmark and abroad will collaborate on interdisciplinary studies of climate change, sea ice, ecosystems, and atmosphere.

Propping open the door to the blood brain barrier

Researchers investigate using heparin to optimize therapeutic delivery with ultrasound into the brain, increasing treatment efficacy for CNS diseases. Initial results show promising potential in enhancing drug permeability and reducing side effects.

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.