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Science News Archive December 2017


Page 5 of 33

The origin of water's unusual properties found

Scientists use x-ray lasers to map out water's fluctuations between two liquid states as it cools. Water behaves strangely compared to other substances, with density and specific heat responding oppositely to pressure and temperature changes.

Ames Lab-led team maps magnetic fields of nano-objects in liquid

A research team led by Tanya Prozorov has demonstrated the first high-resolution mapping of magnetic fields in bacterial cells and magnetic nano-objects in liquid. This capability has vast potential for scientific breakthroughs in physics, nanotechnology, biofuels conversion, biomedical engineering, catalysis, batteries, and pharmacology.

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.

Teens exposed to drug use, mental distress, violence at risk for HIV in adulthood

A new study found that adolescents who experienced frequent psychosocial risks are more likely to engage in unsafe sexual behavior and report unprotected sex. The longitudinal study of 850 African-American students from age 14 to 32 revealed a higher risk of HIV infection for those with co-occurring psychological and social risk factors.

Vampire bat rabies kills hundreds of cattle a year in Peru

Researchers estimate that vampire bat rabies causes between 505-724 cattle deaths annually in Peru, with significant financial losses for farming communities. Enhancing vaccination programs can reduce the disease burden and increase awareness can encourage preventative measures.

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.

Ural scientists synthesized a new phosphor

Researchers at Ural Federal University and Institute of Chemistry of Solids created a new compound that converts UV radiation into visible light. The compound has potential uses in medical and optical devices, as well as air pollution analysis.

Multifunctional protein contributes to blood cell development

Researchers at the Salk Institute have discovered a multifunctional role for the protein nup98 in blood cell development, enabling immature stem cells to differentiate into specialized mature cell types. The findings also shed light on the mechanism of leukemia formation and its potential treatment.

Rust stemmed for wheat

A team of experts has identified a gene that triggers resistance in wheat to the devastating fungal pathogen Puccinia graminis f. sp. tritici (Pgt). The breakthrough allows for DNA testing to identify whether a rust strain can overcome a resistance gene, enabling targeted treatment and reducing crop devastation.

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.

Study: Medications alone don't help smokers quit

A new study by University of California San Diego School of Medicine researchers suggests that medications alone may not be effective in helping smokers quit. Despite promising results in clinical trials, the study found no evidence that pharmaceutical cessation aids improved smoking cessation rates in real-world settings.

Smoking cessation drug may increase risk of adverse cardiovascular event

New research suggests that varenicline, a commonly prescribed smoking cessation drug, may be associated with an increased risk of adverse cardiovascular events. The study found that patients taking varenicline were 34% more likely to experience a cardiovascular event compared to those who did not take the drug.

Apple iPhone 17 Pro

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

Harnessing sperm to treat gynecological diseases

Scientists have successfully packaged a cancer drug into sperm cells, which were then guided to cervical cancer cells using magnetic forces. The loaded sperm killed over 80% of the cancerous tumor with minimal payload loss.

Modeling the effects of wastewater injection

Scientists developed a model to estimate the maximum magnitude of an earthquake caused by wastewater injection from hydraulic fracturing. The model takes into account the energy stored on nearby faults and predicts the distance an earthquake can propagate beyond an injection site.

Blueberry vinegar improves memory in mice with amnesia

Scientists have discovered that blueberry vinegar can restore cognitive function in mice with induced amnesia by reducing the breakdown of acetylcholine and boosting brain-derived neurotrophic factor. The treatment improved short-term memory performance in maze tests and avoidance tests.

Low-dose X-ray exposure does not harm human stem cells

Researchers found that low-dose X-ray treatment does not induce genome instability or DNA damage in stem cells. Instead, these cells proliferate and maintain their health, contradicting previous assumptions about the harm caused by ionizing radiation.

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.

Robot drummer posts pictures of jamming sessions on Facebook

A study by Queen Mary University of London researchers found that robot drummer Mortimer's social media posts sparked significant human interaction, particularly when accompanied by photos and comments. Music proved to be a key factor in establishing believability and long-term engagement with the robot.

Researchers find key to making transplant rejection a thing of the past

A Houston Methodist research team has identified a critical switch controlling T-cell function and discovered a pathway to target it, potentially solving autoimmune diseases and organ transplant rejection. By inhibiting IRF4 expression in activated T-cells, the researchers found they could render them irreversibly dysfunctional.

Fake social media accounts can be hazardous to your health

Researchers at USC found that automated Twitter accounts promoting the idea that e-cigarettes help people stop smoking are more likely to be hazardous to users' health. These 'social bots' were two times more likely than humans to promote both new products and the idea that e-cigarettes empower people to quit smoking.

One-time hydrocephalus operation brings good outcomes for babies

A randomized trial showed that an alternative, potentially one-time operation called endoscopic third ventriculostomy with choroid plexus cauterization (ETV/CPC) is as good for infant brain development as placing a shunt. The study found no significant difference in cognitive scores between the two groups after 12 months.

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.

Inflammation drives progression of Alzheimer's

A new study reveals that inflammatory mechanisms in the brain drive Alzheimer's disease progression. The research found a molecular complex of the immune system promotes aberrant aggregation of proteins, including Amyloid-beta, which accumulates in the brain and harms neurons.

How plants form their seeds

Researchers at University of Zurich discovered how pollen tubes interact with female plant tissue, using extracellular signals to regulate growth and respond to changes in the cell wall. This knowledge opens up potential applications for plant breeding, including influencing pollination and seed formation.

Panning for silver in laundry wastewater

Detergent chemistry significantly impacts the removal of silver nanoparticles from laundry wastewater, with ion-exchange technology recovering up to 99% of the metal. The study's findings could help improve wastewater treatment and reduce aquatic harm.

Polluted woods: Leaves contaminate soil with hydrocarbon

A study by Ca' Foscari University and CNR found that autumn leaves in Italian woods can contaminate soil with high levels of hydrocarbons, up to four times the legal limit. The researchers identified natural sources of these hydrocarbons, including plant origin, but emphasized that even low concentrations may pose a toxicity risk.

Celestron NexStar 8SE Computerized Telescope

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

Life on the ice

Researchers directly observed microbial activity in Antarctic and Arctic snow, revealing metabolically active bacteria that remain active in compressed ice. This discovery could lower estimated CO2 levels before human impact, expanding the search for habitable planets.

Most dog treats exceed recommended daily energy allowance

Researchers found that most dog treats contain undefined ingredients, including sugars, and often exceed the recommended daily energy allowance. Treat labels should be more explicit and provide detailed information on ingredients and energy content to prevent obesity and related health issues.

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.

The muscle of machinery: How to better control robotic movements

Researchers developed an algorithm to improve the control of series elastic actuators in robots, enabling better handling of unknown payload parameters and external disturbances. The new method allows for more flexible and precise robotic movements, improving human-robot interaction safety.

Discounting humanity: Bargain hunters see customer service workers as less human

A study by UBC Sauder School of Business found that price-conscious consumers perceive customer service workers as less human. This dehumanization can lead to poorer treatment and higher job dissatisfaction among employees. The research highlights the importance of recognizing human needs in customers, even when focusing on saving money.

Plant defense following the iron-maiden principle

Scientists at Bonn University have found that plants use minute spines of extremely hard calcium phosphate to defend against herbivorous insects, such as aphids. This unique biomineral is widespread in plant species and can deter many types of insects from damaging the plants.

Fluke 87V Industrial Digital Multimeter

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

Electron microscope images reveal how cells absorb a vital mineral

Scientists have obtained detailed snapshots of the structure of a membrane pore that enables epithelial cells to absorb calcium. This finding could accelerate the development of drugs to correct abnormalities in calcium uptake, which are linked to various types of cancer.

A 508-million-year-old sea predator with a 'jackknife' head

Scientists have discovered a 508-million-year-old sea predator with a unique 'jackknife' head, shedding light on the evolution of spiders, scorpions, and horseshoe crabs. The fossil's anatomy reveals a complex apparatus of appendages and jaws that made it an efficient predator.

Stem cell research: (Re)-acquiring the potential to become everything

Researchers at Helmholtz Munich have discovered a specific subset of pluripotent embryonic stem cells that can transform into totipotent-like cells in culture. This breakthrough could pave the way for new treatments and therapies for various diseases, including diabetes and lung conditions.

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.

Giant bubbles on red giant star's surface

Astronomers have imaged the surface of a red giant star, π1 Gruis, in unprecedented detail. The star's photosphere features just a few convective cells, or granules, which are much larger than those on our Sun.

CRISPR therapy preserves hearing in progressive deafness model

Researchers develop CRISPR-Cas9 gene editing therapy to prevent hearing loss in a mouse model of human genetic progressive deafness. The therapy delivers the protein complex directly into sound-sensing cells, disrupting the mutation that causes cell death and preserving some hearing.

Obesity prevented in mice fed high-fat diet

Researchers at WashU Medicine identified a way to prevent fat cells from growing larger, leading to weight gain and obesity. By activating a specific protein pathway in mice, they found that high-fat diets did not lead to obesity.

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.

Rosie's robustness: Bringing the Jetsons to reality

A team of researchers from King Fahd University of Petroleum & Minerals proposed a control design for the I-PENTAR wheeled inverted pendulum assistant robot to tackle stability issues and uncertainty. The algorithm improved the robot's ability to maintain balance even in uncertain environments.

Risk of chocolate poisoning in dogs peaks at Christmas, warn experts

Experts warn of a significant peak in chocolate poisoning risk for dogs during Christmas and Easter, due to increased accessibility of festive treats. Researchers analyzed 386 cases of dog intoxication from UK veterinary practices between 2012-2017, finding vomiting, heart rate increases, and agitation were common symptoms.

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 disease diagnosis could be dramatically improved with new detection system

Researchers from Imperial College London have developed a new detection system that can detect single protein biomarkers directly in human serum, allowing for earlier treatment of diseases. The system uses synthetic DNA molecules to bind to specific target biomarkers and measure changes in electrical current through nanopores.

East meets West: The Science Bridge

The Science Bridge project aims to promote cooperative projects in neuroscience and medical sciences through conferences, exchange programs, and joint funding bids. Twin Institutes will be established, fostering the free exchange of ideas between Western and Middle Eastern/South Asian research institutions.

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.

A repurposed drug could open door to more stem cell transplants

Researchers discovered that a medication used to treat joint and skin conditions can help people with cancer survive by increasing the survival of transplanted blood stem cells. The drug etanercept blocks TNF-a, which kills healthy cells, allowing human blood stem cells to thrive in new hosts.

NASA sees a re-strengthened Tropical Storm Kai-Tak

Tropical Storm Kai-Tak has strengthened over the South China Sea with powerful thunderstorms and cloud top temperatures reaching as low as -63 degrees Fahrenheit. The storm is expected to move southwesterly and approach the Malay Peninsula by Dec. 22, according to the Joint Typhoon Warning Center.