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Science News Archive September 2019


Page 41 of 43

Vitamin D: How much is too much of a good thing?

Researchers discovered a dose-related decrease in bone density with high doses of vitamin D, contrary to initial predictions. Vitamin D supplementation above recommended levels (400-2000 IU daily) was not associated with an increase in bone density or strength.

Social network interventions can lead to potential health benefits

A systematic review and meta-analysis of social network interventions found significant effects on various health behaviors and outcomes, including sexual health, alcohol misuse, wellbeing, and smoking cessation. The study suggests that social network approaches can be a promising tool for improving health behaviors and outcomes.

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.

Winners of ESMO 2019 awards announced

The European Society for Medical Oncology (ESMO) has announced the winners of its annual awards, recognizing Prof. Eric Van Cutsem's pioneering work in gastrointestinal oncology and Dr. Angelo Di Leo's lifetime achievements in cancer research and education. The ESMO Women for Oncology Award was also presented to Prof. Cristiana Sessa, ...

Who benefits from a defibrillator?

A European study found that patients with high PRD values (≥7.5 degrees) benefit from implantable defibrillators, with a 75% decrease in mortality risk, while those with lower values see a 31% reduction.

Sexual selection influences the evolution of lamprey pheromones

Researchers found that sea lampreys' bile acids produce as sex pheromones are less varied among mature males than larvae, suggesting sexual selection plays a role in their evolution. Further research is needed to fully understand the relationship between pheromone diversity and mate preferences.

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.

Body's ageing process accelerated by DNA changes, study suggests

Research suggests DNA changes can increase susceptibility to age-related diseases like heart conditions and blood cancers. A study of over 1000 older individuals found those with somatic mutations had a biological age almost four years older than those without alterations.

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.

Making more plastics recyclable

A new digital platform aims to increase recyclable plastics by reducing material components and weighing functionality against resource efficiency. The DIMOP project creates a tool for product developers to make better material choices, increasing plastic recyclability.

Color-change urine test for cancer shows potential in mouse study

A simple and sensitive urine test has been developed to detect colon cancer in mice, changing the color of urine to signal growing tumors. The test uses nanosensors that break down when cut by enzymes released by tumors, producing a blue color change that can be seen with the naked eye.

Slowed metabolism helps migrating geese soar

Researchers have discovered that bar-headed geese are able to fly high for long periods of time by reducing their metabolism in low-oxygen conditions. The study found that six out of seven birds could fly in moderately low-oxygen levels and three were willing to fly in severely low-oxygen conditions.

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.

Comparing primate vocalizations

A new study by MIT linguist Shigeru Miyagawa and Esther Clarke reveals that Old World monkeys can combine two items in language sequences, but this ability stops at two. Unlike humans, who can recombine terms to create an infinite variety of sequences, the monkeys' language lacks the capacity for greater complexity.

The kombucha culture

Researchers have discovered complex social behaviors in kombucha microbes, which could provide clues for understanding cooperation in human societies. By studying the interactions between different species in kombucha, scientists hope to develop new antimicrobial products and interventions for bettering human health.

Researching next generation screens that 'deform' and 'push back' when touched

A new research project aims to develop touchscreens with more realistic interactions, enabling users to physically push their fingers into screens or feel different materials. The project promises a step-change in touchscreen technology, potentially benefiting visually impaired people and offering new ways of interacting with devices.

Could recreating freshwater lakes help trial plastic alternatives?

Researchers at Staffordshire University are using artificial aquatic ecosystems called limnotrons to test plastic degradation and develop a standardized method for identifying the age of plastics. The study will help identify effective mitigation and management strategies for reducing plastic pollution in freshwater systems.

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 use advanced imaging to map uncharted area of genome

Researchers have mapped a previously uncharted region of the human genome that gives rise to various diseases. Using advanced imaging techniques, they discovered extreme variability in DNA sequences between individuals and populations, which may lead to genetic testing for parents before having children.

Identification of new populations of immune cells in the lungs

Researchers discovered two distinct sub-populations of interstitial macrophages in the lung, which play a crucial role in preventing asthma development. These sub-populations exhibit different functions, origins, and morphologies, and have distinct local precursors.

Medical imaging rates continue to rise despite push to reduce their use

A recent study analyzed over 135 million imaging exams across the US and Ontario, finding that medical imaging rates have continued to increase despite campaigns to reduce their use. The study found a reacceleration in imaging use for CT and MRI scans in adults, with ongoing growth in both countries.

Apple iPhone 17 Pro

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

Prescription drug monitoring program mandates

A new study by Weill Cornell Medicine found that states with comprehensive prescription drug monitoring program mandates saw a 8.92% reduction in opioid prescriptions and 17.75% fewer emergency department visits compared to those with weak or no mandates.

Slowed metabolism helps geese fly high

Researchers found that bar-headed geese can fly at altitudes of up to 8500m by reducing their metabolism, increasing oxygen transport per heartbeat and heart rate, and lowering blood temperature. This adaptation allows them to conserve energy and fly efficiently in low-oxygen conditions.

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.

Use of medical imaging

The study analyzed 135 million imaging examinations among 16-21 million patients in the US and Canada, finding increased medical imaging rates among adults but declining nuclear medicine use. Imaging rates continued to rise among children except for CT, which declined since 2006.

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.

Genetics may play a role in reaction to CT contrast agents

A large study of almost 200,000 patients found that premedicating with antihistamines and switching contrast media can reduce recurrent allergic reactions. Genetic predisposition may also play a role in reaction to CT contrast agents, according to the researchers.

Surgical masks as good as respirators for flu and respiratory virus protection

Researchers at UT Southwestern Medical Center conducted a large-scale study comparing surgical masks to N95 respirators for flu and respiratory virus protection. The results show that there is no significant difference in effectiveness between the two types of masks, with medical masks being as effective as N95 respirators.

Overweight kids actually eat less right after stressful events

Research suggests that overweight adolescents experience a biological response driving reduced appetite when stressed, eating about 35% fewer calories in the two hours following. This study challenges the common assumption that stress leads to overeating and highlights the importance of understanding individual responses to stress.

Hardship during the Great Recession linked with lasting mental health declines

Research reveals that individuals who experienced financial, housing-related, or job-related hardships during the Great Recession showed increased symptoms of depression, anxiety, and problematic drug use. These findings suggest that government-funded mental health support may be a sound investment to stimulate economic recovery.

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.

The Lancet journals: Papers at ESC Congress 2019

The Lancet published several studies on cardiovascular disease, including a new risk chart for 21 global regions and a trial on percutaneous coronary intervention versus coronary artery bypass grafting. Additionally, the journal presented findings on sirolimus-eluting stents versus durable polymer everolimus-eluting stents in patients ...

Extracting clean fuel from sunlight

Researchers at Arizona State University have developed new technologies that combine light-gathering semiconductors and catalytic materials to produce clean fuel. The technologies use solar energy to drive chemical reactions capable of producing fuels, which store the sun's energy in chemical bonds.

Meta Quest 3 512GB

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

Using lasers to study explosions

Researchers used a swept-wavelength external cavity quantum cascade laser to study explosive events, detecting molecules and measuring temperature and concentration changes. The instrument provides fast and safe measurements, enabling new understanding of explosions and potential applications.

NASA finds tropical storm 14W strengthening

Tropical Storm 14W strengthened into a powerful system due to strong thunderstorms fueled by infrared data from NASA's Aqua satellite. The storm's intense cloud top temperatures indicate potential for heavy rainfall, with winds near 40 mph and expected to intensify over the next five days.

Researchers develop technique to de-ice surfaces in seconds

A new technique developed by researchers at the University of Illinois and Kyushu University in Japan uses less than 1% of the energy required for traditional de-icing methods to melt a thin layer of ice at the surface interface, allowing it to slide off under gravity. This approach is more efficient and reduces system downtime.

Tropical sea snake uses its head to 'breathe'

Scientists have found that the blue-banded sea snake uses a vascular network in its head to absorb oxygen from the surrounding water, allowing it to stay submerged for longer periods. This unique adaptation enables the snake to thrive in tropical waters with minimal surface exposure.

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.

An astonishing parabola trick

Researchers from Helmholtz-Zentrum Dresden-Rossendorf and Helmholtz-Zentrum Berlin have discovered a unique chiral effect in magnetic materials. The team created parabolic strips of Permalloy, which exhibited a surprisingly strong delayed response to a reversed magnetic field due to curvature-induced chiral properties.

Chronic cocaine use modifies gene expression

Research in mice reveals that chronic cocaine use changes gene expression in the hippocampus, leading to epigenetic modifications of the FosB gene. This modification enables the formation of drug associations and contributes to addiction.

Lifestyle, not genetics, explains most premature heart disease

A study of 1,075 patients under 50 found that healthy behaviors such as regular exercise, quitting smoking, and managing cholesterol levels can significantly reduce the risk of premature heart disease. In contrast, genetics played a less significant role in those with multiple modifiable risk factors.

Celestron NexStar 8SE Computerized Telescope

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

Antarctic ice sheet observations from radar data

A team of researchers has digitized and archived over 400,000 km of Antarctic ice-penetrating radar data to track changes in the ice sheet's thickness and englacial features over four decades. The study suggests that the Thwaites Eastern Ice Shelf thinned by 10-33% between 1978 and 2009.

Concurrent drought and aridity

Climate simulations suggest that land-atmosphere feedbacks can increase atmospheric aridity, leading to high probabilities of concurrent soil drought and extreme aridity. The study also predicts more frequent and intense drought and aridity in the coming century with significant human and ecological implications.

Fluke 87V Industrial Digital Multimeter

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

Sleeping too much -- or too little -- boosts heart attack risk

A new study of nearly half a million people found that sleeping between 6 and 9 hours nightly can cut the risk of heart attack by up to 18% for those with genetic predisposition. Sleeping too little or too much also boosts heart attack risk, with optimal sleep duration being critical for overall heart health.