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Science News Archive November 2019


Page 40 of 41

Stressed to the max? Deep sleep can rewire the anxious brain

A new study published in Nature Human Behaviour found that deep sleep can calm the anxious brain by reorganizing connections. Participants who got more nighttime deep sleep experienced lower anxiety levels the next day, suggesting a strong causal connection between sleep and anxiety.

Mercury in fish from Lake Michigan

A study found declining mercury concentrations in lake trout from Lake Michigan, likely due to domestic emissions reductions. However, changes in fish diets and growth rates due to zebra mussel invasions slowed these declines.

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.

Commemorating 30 years of optical vortices: A comprehensive review

The development of optical vortices has been divided into three stages: fundamental theories, application development, and technology breakthrough. The recent stage has seen significant advancements in metasurface and OAM-multiplexing, enabling high-capacity optical communication and novel nonlinear phenomena.

Better teleoperations with a less complicated system

A team of international researchers has developed a new control algorithm that reduces the complexity of bilateral teleoperation systems while maintaining their performance. The proposed composited stated convergence scheme achieves this by reducing communication channels, resulting in better transient performance.

Fish oil supplements have no effect on anxiety and depression

A systematic review of 31 trials found that omega-3 supplements offered no benefit in preventing depression or anxiety symptoms. The research team analyzed data from over 41,470 participants and concluded that the supplements should not be encouraged as a treatment for these conditions.

30-day death rates after emergency department visits

Researchers analyzed 30-day mortality rates following ED visits, finding a significant increase in deaths among elderly patients. The study used Medicare data from 2009 to 2016 and found that the 30-day death rate for emergency department visits increased significantly during this period.

In classical and quantum secure communication practical randomness is incomplete

A new study reveals that true random bit sequences are impossible to generate, even in classical and quantum secure communication. The researchers demonstrated a method of classified secure communication where information is concealed from hackers. They also showed that long sequences certified by NIST are far from being truly random.

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.

Study highlights fluid sexual orientation in many teens

A study of 744 rural high school students found that at least 19% reported changes in their self-labeled sexual identity over a three-year period. Notable differences were seen between male and female students, with girls reporting more changes than boys.

How much do we lie when we have sex on the brain?

A study published in the Journal of Experimental Social Psychology found that people are more likely to change their attitudes and engage in deceptive self-presentation when they are sexually primed. Participants who were exposed to sexual stimuli were more likely to express agreement with a contrary opinion and conform to a stranger's...

Ramping up to divide: An unstable protein is the master switch for cell division

Scientists at the University of Groningen discovered that an unstable protein, Cln3, triggers cell division in budding yeast by assessing environmental conditions favorability for protein production. The concentration of Cln3 peaks before initiating division, indicating a decoupling between protein synthesis and metabolic processes.

Study finds teen vaping probably doesn't lead to smoking

A new study suggests that adolescent e-cigarette users are more similar to conventional cigarette smokers than non-tobacco users. E-cigarette use is not associated with an increased risk of current smoking among teens, but its prevalence has risen significantly among youth in recent years.

Celestron NexStar 8SE Computerized Telescope

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

End of life carers should have six months paid leave, say experts

A new guide published by University of Sheffield researchers suggests that end-of-life carers should be entitled to up to six months paid time off work and job safeguards. The study highlights the economic benefits of supporting working carers, who can provide valuable services to society while reducing the burden on the NHS.

Adhesive which debonds in magnetic field could reduce landfill waste

Researchers at the University of Sussex have developed an adhesive that can unstick when exposed to a magnetic field, allowing for easy disassembly and recycling of products. The adhesive works with various materials, including plastic, wood, glass, and metal, and is comparable in strength to industry-standard adhesives.

Too good to be true?

A new study from Harvard Medical School suggests that an overall decline in hospital admissions may have driven the observed drop in readmissions, rather than the pay-for-performance program. The findings contradict prevailing interpretations and call into question the program's effectiveness.

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.

Discriminating diets of meat-eating dinosaurs

A new study by University of Bristol scientists reveals that meat-eating theropod dinosaurs had broadened their food base. The researchers analyzed the jaws and teeth of 83 theropod dinosaurs, including giants and small ones, to describe every possible jaw shape and tooth shape in terms of about 80 measurements.

New way to date rocks

University of Queensland scientists have identified a new reference material and used a state-of-the-art instrument to better date rock formations in central Asia. This new method could help establish the relationship between historical episodes of magma activity and mineral accumulation.

New database enhances genomics research collaboration

The MaveDB database was developed to facilitate the sharing of complex functional genomic data sets, enabling researchers to access and interpret complex data more efficiently. This will accelerate research into gene function, disease mechanisms, and protein engineering.

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.

Satellites are key to monitoring ocean carbon

Satellites are now essential for monitoring ocean carbon levels, which helps slow climate change. The new study highlights the potential of increased satellite exploitation to fill critical knowledge gaps in ocean monitoring.

Simple blood test for early detection of breast cancer

Researchers have developed a simple blood test that detects breast cancer up to five years before clinical signs appear, identifying tumor-associated antigens and autoantibodies. The test shows promising accuracy in detecting breast cancer with reasonable accuracy, especially when using panels of multiple antigens.

Dietary fiber effectively purifies carbon nanotubes

A new method uses isomaltodextrin, a cheap and widely available polysaccharide, to separate semiconducting from metallic single-wall carbon nanotubes. The purified semiconducting SWCNTs were found to improve the performance of thin-film transistors in LCD displays.

Apple iPhone 17 Pro

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

New printer creates extremely realistic colorful holograms

The new CHIMERA printer produces digital 3D holograms with unprecedented detail and realistic color, created using low-cost commercial lasers and high-speed printing. The printer can produce wide-field-of-view holograms with full parallax, ideal for applications such as museum displays and architectural models.

Online tool speeds response to elephant poaching by tracing ivory to source

A new online tool uses an interactive database of genetic information to help authorities quickly identify the origin of confiscated ivory from African elephants. The Loxodonta Localizer matches genetic sequences from poached ivory to those stored in the database, providing a faster and cheaper analysis than current approaches.

Meta Quest 3 512GB

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

How the Aztecs could improve modern urban farming

Researchers discovered that chinampas, a raised field system on artificial islands, can provide fresh produce year-round with low irrigation needs. The system's high productivity and sustainability make it an attractive solution for modern megacities.

Here's something that will raise your blood pressure

Researchers found that activating the apelin receptor led to increased blood pressure due to vasoconstriction, a process also affected by the α1A-adrenergic receptor. The study suggests a coordinated mechanism controlling blood vessel contraction and may support therapy development for vascular stenosis and vasospasm.

What Reddit's basketball fans can tell us about online discourse

A recent study on Reddit's basketball fans reveals that mixing fans of different teams can lead to a backfire effect, resulting in more negative comments and hate speech. The researchers found that when fans interact with opposing groups online, their language patterns deteriorate, becoming increasingly negative and confrontational.

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.

Lymphatic system found to play key role in hair regeneration

Scientists discover molecular coordination tool and specialized lymphatic capillaries that transport immune cells and drain excess fluids from tissues, controlling fluid composition and cell synchronization during hair follicle stem cell activity.

Science snapshots from Berkeley Lab

A crowdsourcing game called Foldit allows players to design protein structures that are reproduced in labs, showing their accuracy. Researchers also discovered how cooking affects the gut microbiome and found a new material to remove toxic sulfur dioxide gas.

New study sheds light on conditions that trigger supernovae explosions

Researchers developed a theory that sheds light on detonation formation at the heart of supernovae explosions, demonstrating the process using experiments and numerical simulations. The study predicts the conditions for detonation formation in Type Ia supernovae, providing insight into fundamental aspects of physical processes.

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.

Black and elderly patients less likely to receive lung cancer treatments

A new study found that only about 6 in 10 lung cancer patients in the US receive recommended treatments, with black patients and those over 80 receiving significantly lower treatment rates. The researchers highlight the importance of communicating benefits of treatment for advanced disease beyond survival.

Best of frenemies: Unexpected role of social networks in ecology

Biologists at UC Davis propose that species pay attention to each other, especially if they share predators, leading to new insights into population dynamics and cooperation. Advances in technology have made it easier to study short-lived interactions between species in the wild.

A new spin on life's origin?

A research team at The University of Tokyo has successfully produced helixes that twist preferentially in a particular direction, shedding light on the origin of life's chirality. This breakthrough may lead to new and cheaper drug production methods and finally address the lingering question of how life began.

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.

New innovations in technology could benefit veterans with PTSD

The Zeriscope system enables veterans to virtually take their doctor with them during prolonged exposure therapy, providing real-time feedback on physical and psychological information. This innovation aims to improve treatment outcomes and reduce dropout rates for veterans with PTSD.

Harvesting genes to improve watermelons

An international team of researchers has created a comprehensive watermelon genome resource to help plant breeders increase the domestic fruit's quality and ability to thrive during an era of climate change. The resource includes genetic insights into wild watermelon species and their potential for disease resistance, paving the way fo...

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.

Fluorescent probes offer fuller view of drug delivery in cells

Researchers at Cornell University have developed a technique using fluorescent probes to study the performance of molecules inside living cells. The probes can accurately measure the rate at which linkers release drugs in cells, enabling pharmaceutical companies to make informed decisions about drug delivery systems.

Living skin can now be 3D-printed with blood vessels included

Researchers at Rensselaer Polytechnic Institute have developed a way to 3D print living skin complete with blood vessels. The advancement brings researchers closer to creating grafts that are more like the skin our bodies produce naturally, which can accelerate wound healing and improve patient outcomes.

Four decades of data sounds early warning on Lake George

A 40-year study of Lake George's deep waters reveals significant increases in salt and nutrients, but at concentrations still too low to cause harm. The findings serve as an early warning for potential impacts on streams, wetlands, and shallow waters, suggesting a shift in research focus.

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.

Rice yields plummet and arsenic rises in future climate-soil scenarios

Climate change is projected to cause a dramatic decline in rice yields, potentially devastating global food supplies. The crop's sensitivity to soil arsenic, exacerbated by increased temperatures and irrigation with high-arsenic water, will lead to twice the normal amount of toxic arsenic in rice.

Food waste in tourism is a bigger issue than previously thought

The tourism industry is facing significant challenges due to food waste, with globally estimated 1.3 billion tons of food lost or wasted each year. Food waste in tourist households has been neglected despite growing numbers of tourists and diverse travel experiences.

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.

Being physically active can lower older adults' risk for dying

A study published in the Journal of the American Geriatrics Society found that low levels of physical activity are associated with higher risks of mortality among Brazilian older adults. The research suggests that regular physical activity can help reduce deaths from heart disease, diabetes, and other chronic conditions.