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Science News Archive July 2022


Page 4 of 34

Nonoperative vs operative management of uncomplicated appendicitis

A systematic review and meta-analysis found no significant differences in treatment success between nonoperative and operative management for acute uncomplicated appendicitis. However, the nonoperative group experienced significantly longer hospital stays and higher recurrence rates.

Bacterial bullseye

A team of researchers connected the dots for one important gut bacterium, revealing its molecular structure and function in the immune system. The study found that Akkermansia muciniphila's lipid activates toll-like receptors, triggering the release of certain cytokines while leaving others alone.

The origins of astrocytes: The brain’s star cell

Researchers investigate astrocyte production in the brain, discovering distinct dynamics in different parts of the cortex. The study suggests that early exposure to specific genes regulates stem cell behavior, leading to variations in astrocyte generation.

Apple iPhone 17 Pro

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

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.

High-status Danish Vikings wore exotic beaver furs

Researchers analyzed ancient proteins in high-status Viking graves to identify beaver fur, supporting the idea that it was a luxury item. The discovery suggests that wearing exotic fur was an obvious visual statement of affluence and social status during the Viking Age.

Celestron NexStar 8SE Computerized Telescope

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

COVID vaccine patch fights variants better than needles

A new vaccine patch has been shown to be more effective at neutralizing COVID-19 variants than traditional needle-based vaccines. The patch technology precisely delivers the vaccine into the skin's immune cells, producing superior immune responses.

Look before you leap: Study provides safety guidelines for diving

A study in biomechanics measures the impact of head-first, hand-first, and feet-first diving to provide data-driven recommendations for safe diving. The researchers found that spinal cord and neck injury is likely above eight meters in a head-first dive, while knee injury is likely above 15 meters with feet-first diving.

First demonstration of a secure quantum network with untrusted quantum devices

Researchers from NUS and LMU Munich successfully demonstrated device-independent QKD, a new form of quantum key distribution that is secure even if users are not privy to the underlying hardware. The experiment used a new protocol with an extra set of key-generating measurements to make it more tolerant to noise and loss.

A key role for quantum entanglement

Researchers demonstrate device-independent quantum key distribution using quantum entanglement, paving the way for secure communication. The breakthrough ensures security without relying on the eavesdropper's computational power.

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.

PKU’s new breakthrough: A powerful weapon against cancer

Researchers at Peking University discovered a plant immune protein, RDR1, that can repair microRNA defects in cancer cells, leading to broad-spectrum anti-tumor response. The study provides a new strategy for tumor treatment and makes RDR1 a powerful weapon against cancer.

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.

Promising developments in pursuit to design pan-coronavirus vaccine

Researchers at the Francis Crick Institute have made significant progress in designing a pan-coronavirus vaccine that targets the S2 area of the spike protein, offering protection against multiple coronaviruses and potential future pandemics. The study found that antibodies targeting this area can neutralize a range of coronaviruses, i...

Western wildfire smoke plumes are getting taller

Climate change is intensifying Western US wildfire activity, resulting in taller smoke plumes and more aerosols injected into the atmosphere. The study models 4.6 million smoke plumes and finds that maximum plume height increased by an average of 320 ft per year in four regions, with some areas experiencing a 750 ft per year increase.

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.

Eating more ultra-processed foods associated with increased risk of dementia

A new study published in Neurology found that people who eat the highest amounts of ultra-processed foods like soft drinks and sugary snacks may have a higher risk of developing dementia than those who eat the lowest amounts. Replacing ultra-processed foods with unprocessed or minimally processed options can lower this risk.

Programming pH

Researchers develop technique to control pH at microsites, enabling high-throughput biomolecular synthesis and enzymatic DNA synthesis. This allows for increased experimental throughput and speeding up processes in DNA synthesis.

Molecular electronics: a possible solution beyond Moore's Law

Researchers have developed instruments for single-molecule electrochemistry and spectroscopy, aiming to design and synthesize materials with chemistry, physics, and engineering at the atomic scale. They discuss challenges and opportunities in functionalizing molecular junctions and forming stable molecular electronic devices.

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.

Hearing loss and tinnitus are common in cancer survivors

A new study found that over half of adult cancer survivors experience significant hearing problems after chemotherapy treatment. The researchers also discovered that platinum and taxane drugs, commonly used to treat the majority of cancers, are linked to high rates of hearing loss and tinnitus.

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.

Working memory depends on reciprocal interactions across the brain

Researchers discovered that communication between two brain regions, parietal cortex and premotor cortex, is co-dependent on instantaneous timescales to represent and maintain working memory. This finding challenges previous understanding of working memory representation in the brain.

Gemini telescopes help uncover origins of castaway gamma-ray bursts

Astronomers have found that short gamma-ray bursts did not originate as castaways, but instead occurred in distant galaxies up to 10 billion light-years away. The discovery suggests that these events may have been more common in the past than expected and could have seeded the Universe with precious metals.

No pain, no gain? How the brain chooses between pain and profit

McGill University researchers identify ventral striatum as key area in brain decisions between future pain and profit, potentially advancing treatments for disorders characterized by excessive avoidance. The study uses brain scans to monitor activity and machine-learning algorithms to predict participants' choices.

Race matters in COVID-19 vaccine hesitancy, research finds

A new study found that racial disparities in COVID-19 vaccine uptake are largely due to anti-vaccine beliefs among Black adults. U.S.-born Hispanic adults were less vaccine hesitant than U.S.-born white adults, likely due to a stronger social connection to the vaccine

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.

The immune system can help us diagnose cancer

Researchers at the University of Copenhagen have developed a new method to detect biliary tract cancer and other serious cancers by analyzing changes in microRNA molecules in patient blood. This approach enables early diagnosis and has potential for targeted treatments.

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.

How digital religion is shaping spirituality among millennials

Digital religion among millennials provides important spiritual spaces, enriching existing religious experiences. A new study found that digital forms of communication stem secularization and facilitate a 'spiritual revolution', but are not attracting new participants.

A methodological leap in the exploration of memory

Researchers have developed a groundbreaking 'toolbox' to study receptor mobility in the brain, revealing its critical role in certain types of memory. The study used high-resolution imaging and manipulation techniques to observe receptor dynamics in intact brain tissue, providing new insights into the mechanisms controlling memory.

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.

New insights into HIV latent cells yield potential cure targets

Scientists used cutting-edge technology to analyze HIV-infected memory CD4+ T cells and found distinct gene expression patterns linked to cell survival and proliferation. These findings suggest that the HIV-infected reservoir may be uniquely susceptible to targeted therapies, offering new hope for cure research.

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.

How tiny changes help T cells to survive

Research reveals that m6A modifications in T cells influence cell differentiation and biological processes. The study shows that loss of m6A affects T cell signaling and survival, leading to severe inflammatory responses and colitis in mice.

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.

Famine and disease drove the evolution of lactose tolerance in Europe

A new study finds that famine and disease, not increased milk consumption, led to the evolution of lactose tolerance in European populations. Prehistoric people consumed milk extensively, but it wasn't until around 1,000 BC that the genetic trait for lactase persistence became common.

Early hunting, farming homogenized mammal communities of North America

A new study found that North American mammal communities have become more than twice as homogenous as they were 10,000 years ago, primarily due to early human hunting and farming activities. The accelerated homogenization is likely linked to the spate of large-mammal extinctions, which increased similarity among remaining species.

People in shelter-in-place hotels used less acute health services

Researchers found that individuals staying in hotels received significantly reduced acute care services, including emergency visits and hospitalizations. The study suggests that these programs can have a positive impact beyond just reducing COVID-19 cases among vulnerable populations.