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Science News Archive 2013 - Page 40


Page 40 of 352

Drinking more milk as a teenager does not lower risk of hip fracture later

A study published in JAMA Pediatrics found that teenage milk consumption is associated with an increased risk of hip fractures in men, while no such association was found in women. The authors suggest that further research is needed to understand the relationship between early milk consumption and height on hip fracture risk.

SourceJAMA Network·JournalJAMA Pediatrics·DateNov 18, 2013
Apple iPhone 17 Pro

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

Gene plays major role in suppressing cancer

Researchers at the University of Adelaide have discovered a gene that plays a crucial role in suppressing lymphoma, a type of blood cell cancer. Caspase-2 helps maintain healthy chromosome numbers in cells, preventing them from becoming cancerous.

SourceUniversity of Adelaide·JournalProceedings of the National Academy of Sciences·DateNov 18, 2013

Refined materials provide booster shot for solar energy conversion

A new form of high-performance solar photocatalyst has been developed by combining TiO2 with metallic oxides, enhancing visible light absorption and efficient utilization of the solar spectrum. The material demonstrates 27 times larger photocatalytic activities than a single-layer TiO2 film.

SourceUniversity of Illinois Grainger College of Engineering·JournalAdvanced Materials·DateNov 18, 2013

Pressure cooking to improve electric car batteries

Researchers at the University of California, Riverside have redesigned battery component materials to create nanoparticles with controlled shape, resulting in smaller, more powerful and energy efficient batteries. This innovation could improve battery performance and reduce costs for electric cars and other applications.

SourceUniversity of California - Riverside·JournalCrystal Growth & Design·DateNov 18, 2013

A vexing math problem finds an elegant solution

Graduate student Yash Lodha and Justin Moore describe geometric solution for von Neumann-Day problem, a centuries-old challenge in group theory. The solution involves a finite set of nine rules and has been hailed as natural and compelling enough to study for its own sake.

SourceCornell University·DateNov 18, 2013
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.

UNH scientists document, quantify deep-space radiation hazards

Scientists from UNH have published comprehensive findings on space-based radiation hazards using a UNH-led detector aboard NASA's Lunar Reconnaissance Orbiter. The data provide critical information on the radiation hazards faced by astronauts on extended missions to deep space like Mars.

SourceUniversity of New Hampshire·JournalSpace Weather·DateNov 18, 2013

Staying on medication may not translate to avoiding readmission

A targeted effort to improve adherence to drug regimens in high-risk heart failure patients showed promise but had limited impact on reducing hospital readmission rates. Patients who received coaching from nurses were four times more likely to adhere to their medication regimens, but readmissions remained unchanged.

SourceDuke University Medical Center·DateNov 18, 2013

Special issue of Gut Microbes on Helicobacter pylori

A special issue of Gut Microbes explores the role of H. pylori in stomach cancer, as well as its impact on the natural stomach ecology and relationship with hepatitis C virus-associated liver cancer. The studies discuss various factors contributing to H. pylori-induced gastric cancer.

SourceLandes Bioscience·JournalGut Microbes·DateNov 18, 2013

Researchers develop new approach to identify possible ecological effects of releasing genetically engineered insects

University of Minnesota researchers have developed a new approach for identifying potential environmental effects of releasing genetically engineered (GE) insects. The framework evaluates the entire range of potential effects, including those during transitory and steady state phases, providing improved guidance for ecological risk ass...

SourceUniversity of Minnesota·JournalEcology and Evolution·DateNov 18, 2013

Cesarean delivery doesn't lower risk of cerebral palsy

A comprehensive study analyzing over 3,800 cerebral palsy cases and 1.7 million healthy children found no link between cesarean delivery and reduced risk of cerebral palsy. The causes of cerebral palsy are believed to lie elsewhere, with research focusing on genetic origins and environmental triggers.

SourceUniversity of Adelaide·JournalObstetrics and Gynecology·DateNov 18, 2013
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.

The big male nose

A University of Iowa study found that men's noses are about 10 percent larger than female noses, on average, in populations of European descent. The size difference is attributed to the sexes' different builds and energy demands.

SourceUniversity of Iowa·JournalAmerican Journal of Physical Anthropology·DateNov 18, 2013

High-risk women get breast MRI -- but room remains for improvement

A large national study found that breast MRI screenings nearly tripled from 2005 to 2009, with a notable increase in high-risk women. Despite this progress, the study highlights areas for improvement in the use of breast MRI for risk-based screening.

SourceGroup Health Research Institute·JournalJAMA Internal Medicine·DateNov 18, 2013
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.

Nature: Single-atom bit forms smallest memory in the world

Researchers from KIT have successfully stabilized a single atom's magnetic spin for ten minutes, opening up possibilities for compact computer memories and quantum computers. By suppressing surrounding interactions at low temperatures, they achieved a stability period of about a billion times longer than comparable atomic systems.

SourceHelmholtz Association·JournalNature·DateNov 18, 2013

A happy patient is well connected to a doctor

Researchers at the University of Iowa found that maintaining a direct channel of communication between patients and primary doctors is crucial to success. Patients in regular contact with their primary physicians are most satisfied with their care, according to a new study.

SourceUniversity of Iowa·JournalJournal of General Internal Medicine·DateNov 18, 2013

Men with prostate cancer who ate a low-fat fish oil diet showed changes in their cancer tissue

Men with prostate cancer who followed a low-fat fish oil diet had lower levels of pro-inflammatory substances in their blood and a lower cell cycle progression score compared to those on a Western diet. The study suggests that altering the diet may favorably affect prostate cancer biology.

SourceUniversity of California - Los Angeles Health Sciences·JournalCancer Prevention Research·DateNov 18, 2013

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.

SourceKarolinska Institutet·JournalProceedings of the National Academy of Sciences·DateNov 18, 2013
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.

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.

SourceOhio State University·JournalThe Journal of the Acoustical Society of America·DateNov 18, 2013

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.

SourceAmerican Heart Association·DateNov 18, 2013

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.

SourceRice University·JournalNature Communications·DateNov 18, 2013
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.

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.

SourceBrigham Young University·JournalAmerican Journal of Health Promotion·DateNov 18, 2013
Sky & Telescope Pocket Sky Atlas, 2nd Edition

Sky & Telescope Pocket Sky Atlas, 2nd Edition is a durable star atlas for planning sessions, identifying targets, and teaching celestial navigation.

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.

SourceUniversity of Cincinnati·DateNov 18, 2013

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.

SourceKarolinska Institutet·JournalNature Methods·DateNov 17, 2013
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.

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.

SourceColumbia University·JournalNature Nanotechnology·DateNov 17, 2013

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.

SourceAmerican Heart Association·DateNov 17, 2013

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.

SourceWashington University in St. Louis·JournalNature Geoscience·DateNov 17, 2013
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.

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.

SourceJAMA Network·JournalJAMA·DateNov 17, 2013

Scientists fingerprint single cancer cells to map cancer's family tree

Researchers used DNA sequencing to create a family tree for individual cancer cells, revealing unique branching patterns and distinct sub-populations. This technique could help identify key mutations driving tumor growth and develop targeted treatments more effectively.

SourceInstitute of Cancer Research·JournalGenome Research·DateNov 17, 2013
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.

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.

SourceAmerican Heart Association·DateNov 17, 2013

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.

SourceGFZ GeoForschungsZentrum Potsdam, Helmholtz Centre·JournalNature Geoscience·DateNov 17, 2013

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.

SourceUniversity of Cambridge·JournalNature Chemistry·DateNov 17, 2013

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.

SourceJAMA Network·JournalJAMA·DateNov 17, 2013
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.

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.

SourceCedars-Sinai Medical Center·JournalCell Cycle·DateNov 17, 2013

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.

SourceGeorgia Institute of Technology·JournalNature Geoscience·DateNov 17, 2013

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.

SourceAmerican Heart Association·DateNov 17, 2013

'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.

SourceAmerican Heart Association·DateNov 17, 2013
Celestron NexStar 8SE Computerized Telescope

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

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.

SourceUniversity of Rochester Medical Center·JournalNature Medicine·DateNov 17, 2013

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.

SourceEcole Polytechnique Fédérale de Lausanne·JournalNature Nanotechnology·DateNov 17, 2013

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.

SourceJAMA Network·JournalJAMA·DateNov 17, 2013
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.

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.

SourceAmerican Heart Association·DateNov 17, 2013

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.

SourceChildren's Hospital of Philadelphia·JournalNature Genetics·DateNov 17, 2013