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Science News Archive November 2013


Page 14 of 30

Reading the pancreas through the eye

Swedish researchers have found a way to study glucose regulation by transplanting pancreas cells into the eye, allowing for monitoring of insulin-producing beta-cells and identification of new drug substances. This innovative method could lead to personalized treatment principles and diagnosis of pancreatic problems.

Study reveals potential breakthrough in hearing technology

Researchers at Ohio State University have developed a potential breakthrough in solving the 'cocktail party problem' by using neural networks to filter out background noise. The technology improves comprehension for the hearing-impaired, with scores increasing from 10% to 90%, and is being commercialized for license.

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.

Atrial fibrillation hospitalizations, costs soar in United States

Hospitalizations for atrial fibrillation in the US nearly doubled from 4.6 million in 1998 to 9.2 million in 2010, with a 46% increase over the decade. Researchers project a similar trend through 2020, with 541,000 hospitalizations expected by 2020. The estimated cost of hospitalizations is also projected to rise by 55% from 2010.

Optimizing electronic correlations for superconductivity

Researchers found that two types of iron-based superconductors employ similar coupling between electrons in their superconducting state. Understanding this mechanism may help create even better superconductors with higher transition temperatures.

Celestron NexStar 8SE Computerized Telescope

Celestron NexStar 8SE Computerized Telescope combines portable Schmidt-Cassegrain optics with GoTo pointing for outreach nights and field campaigns.

Small vessel changes in eye, kidney provide clues to risky heart rhythm

Research suggests that damage to small blood vessels in the retina and kidneys increases the risk of developing atrial fibrillation, a common type of abnormal heart rhythm. The study found that those with signs of vessel damage were more likely to develop atrial fibrillation than those without.

Consistent bed time and wake time linked to healthier weight

Research by Brigham Young University suggests that a consistent bedtime and wake time can lead to lower body fat. The study found that those with the best sleeping habits had healthier weights, with quality sleep being an important factor in body composition.

Multilevel study finds no link between minimum wage and crime rates

A new multilevel study examines the relationship between minimum wage increases and crime rates, concluding that higher wages do not lower violent or property crime. The researchers analyzed data from 18 states that raised their minimum wage above federal standards and found no significant change in crime rates.

Apple iPhone 17 Pro

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

Protein coding 'junk genes' may be linked to cancer

Researchers at Karolinska Institutet have discovered nearly one hundred novel human gene regions that code for proteins, including pseudogenes linked to cancer. The study uses a new proteogenomics method to track down protein-coding genes in the remaining 98.5% of the genome.

Columbia engineers make world's smallest FM radio transmitter

A team of Columbia researchers has developed a nano-mechanical system that can create FM signals, paving the way for more efficient cell phones and wireless communication. The device uses graphene's unique properties to tune frequency and overcome size limitations.

Texting heart medication reminders improved patient adherence

A 30-day, randomized controlled trial found that customized text education messages and medication reminders increased correct dose-taking and on-schedule dosing among coronary heart disease patients. The study suggests innovative technologies like mHealth can effectively promote medication adherence.

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.

Volcano discovered smoldering under a kilometer of ice in West Antarctica

A team of scientists has discovered a volcano hidden beneath a kilometer of ice in West Antarctica, sparking concerns about its potential impact on the continent's major ice streams. The volcano, located approximately 25-40 kilometers below the surface, is believed to be fueled by a hot spot in the Earth's mantle.

Method to estimate LDL-C may provide more accurate risk classification

A novel method to estimate LDL-C levels has been developed, providing more accurate risk classification for heart disease. The new approach uses a larger database of lipid profiles and applies an adjustable factor for triglyceride levels, resulting in improved accuracy, especially for patients with elevated triglyceride concentrations.

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.

Heart disease no. 1 cause of pregnancy-related deaths in California

Research found that heart disease accounted for approximately one-quarter of pregnancy-related deaths in California between 2002-2005. Women who died from cardiac causes were more likely to be African-American or obese, and often had undiagnosed high blood pressure during their pregnancies.

Oxygen, phosphorous and early life on Earth

A two-billion-year-old rock formation in Russia reveals that sulfur bacteria played a crucial role in distributing phosphorous during the oxygenation of the Earth. The discovery suggests that the establishment of these bacterial habitats triggered the formation of earliest worldwide phosphorites.

2 for 1 in solar power

A recent study published in Nature Chemistry shows that singlet fission can be controlled by interacting molecules, leading to a doubling of current in solar cells. The researchers used laser experiments and chemical methods to slow down the process and observe key intermediate steps.

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.

Study compares outcomes of device for chest compressions vs manual CPR

A multicenter clinical trial compared mechanical chest compressions with manual CPR and found that neither approach improved 4-hour survival rates. However, patients receiving mechanical chest compressions had a higher proportion of survivors with good neurological outcomes, suggesting potential benefits in specific patient populations.

Novel study charts aggressive prostate cancer

Researchers have identified large oncosomes as a potential indicator of patients with more aggressive, treatment-resistant disease. The study also found that microRNA in these vesicles can influence tumor progression.

Evidence found for granite on Mars

Researchers found rich deposits of feldspar, a mineral common in granite, in an ancient Martian volcano. The discovery suggests prolonged magmatic activity on Mars, leading to the formation of granite-like rocks, challenging previous assumptions about Martian geology.

Hybrid heart valve is strong, durable in early tests

Researchers created a three-dimensional cell culture with layers of smooth muscle, connective tissue, and lining cells embedded within a nickel-titanium alloy scaffold. The hybrid heart valve performed well in a heart simulator, opening and closing under various pressures without structural vulnerability.

'Virtual reality hands' may help stroke survivors recover hand function

A small study presented at American Heart Association's Scientific Sessions 2013 found that virtual reality hands controlled by stroke survivors' thoughts can help them recover use of their arms and hands. Patients achieved 81% accuracy in using the virtual hands to reach out, improving skills in just three experimental sessions.

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.

Drug shows early promise in treating seizures

A study published in Nature Medicine suggests a potential new treatment for seizures caused by high levels of ammonia in the blood. Bumetanide, a diuretic drug used to treat high blood pressure, has been found to restore normal electrical activity in the brains of mice with genetic metabolic disorders and prevent seizures.

Graphene nanoribbons for 'reading' DNA

EPFL researchers have developed a new method for detecting individual DNA molecules using graphene nanoribbons, offering improved precision and potential for DNA sequencing. The technology has the potential to detect other types of proteins and provide information on their size and shape.

Weight reduction decreases atrial fibrillation and symptom severity

A structured weight reduction program significantly reduced atrial fibrillation symptoms, episodes, and cumulative duration in minutes compared to a control group. Patients who participated in the weight management program experienced greater reductions in weight and cardiometabolic risk factors.

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.

Early statin therapy helps kids with inherited high cholesterol

Researchers evaluated the effectiveness of early statin therapy in children with familial hypercholesterolemia and found that it significantly reduced coronary heart disease survival rates. After 10 years, young adult patients who received statins from childhood had not suffered from cardiovascular complaints.

Novel gene variant found in severe childhood asthma

A novel gene variant associated with severe childhood asthma has been discovered through a genome-wide association study. The study found that the CDHR3 gene is particularly active in epithelial cells lining airways and may disrupt normal functioning, leading to increased risk of asthma.

Fluke 87V Industrial Digital Multimeter

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

Physical fitness improves survival, prevents some heart attacks

A new study by Johns Hopkins Medicine found that higher levels of physical fitness lower the risk of having heart attacks and increase survival in those with coronary artery disease. The study included over 9,800 adults with coronary artery disease and showed a 75% lower risk of dying from any cause among the fittest patients.

Environmental toxins linked to heart defects

Research suggests that exposure to specific environmental toxins during pregnancy may increase the risk of congenital heart defects in children. The study found a strong correlation between certain chemicals and rates of congenital heart defects, particularly septal defects and conotruncal defects.

Paths out of uncertainty

The study reveals that natural fluctuations in the climate system are the primary cause of differences in short and medium-term projections. Despite this, researchers have found ways to make predictions about local climate extremes for certain regions and large areas, highlighting the importance of considering regional variability.

Childhood cancer treatment takes toll on hearts of survivors

Research shows childhood cancer survivors are more likely to experience premature heart disease and a decline in arterial function, with a 9% decrease in arterial health seen among leukemia survivors who completed chemotherapy. Lifestyle changes can help mitigate these risks.

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.

Scientists invent self-healing battery electrode

Researchers developed a stretchy polymer that coats the electrode, binds it together, and spontaneously heals tiny cracks during battery operation. This self-healing coating extends silicon electrodes' lifespan up to 10 times, making them suitable for electric vehicles and cell phones.

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.

1 minute of CPR video training could save lives

Researchers found that a one-minute CPR video training improved responsiveness, chest compression depth, rate, and hands-off interval time. The study suggests ultra-brief video training could be an effective universal intervention for improving CPR skills in public venues.

News tips for Saturday, Nov. 16, 2013

A retrospective study found that pre-hospital plasma transfusions reduced trauma patient mortality by 8% and improved coagulation status by 40%. Although not statistically significant, survival to hospital discharge also showed a 13% improvement.

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.

'What could possibly go wrong?' A lot

A recent case series of serious injuries at the Tough Mudder event highlights the risks associated with extreme sports events. Participants experienced a range of severe injuries, including multiple electrical burns, seizure-induced Todd's paralysis, and face and head trauma.

Whither the teakettle whistle

A team of engineers has accurately modeled the whistling mechanism in a classic stovetop kettle, identifying two-mechanism process of whistle production and potential solutions to noisy plumbing issues. The study's findings reveal that swirling vortices create the siren sound, which could help eliminate annoying noises.

Ocean acidification: Hard to digest

Researchers found that ocean acidification impairs digestion in larvae of the green sea urchin, leading to reduced growth and fertility. The study used novel pH micro-electrode techniques to investigate digestion and digestive enzymes in the larvae.

Protein quality: It matters

Research presented at SupplySide West highlights the superiority of whey protein in building and maintaining lean muscle, maintaining weight and aging healthy. Whey protein is a complete protein containing all essential amino acids, with benefits including reducing hunger, improving exercise recovery and reducing muscle loss with aging.

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.