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Science News Archive November 2020 - Page 21


Page 21 of 43

TAVR is dominant form of aortic valve replacement, outcomes steadily improving in the US

Since its 2011 approval, TAVR has become the leading choice for aortic valve replacement in the US, with increasing volumes and improved outcomes. The STS/ACC TVT Registry data show significant reductions in mortality, stroke rates, and length of stay, while pacemaker implantation rates remain stable.

SourceAmerican College of Cardiology·JournalJournal of the American College of Cardiology·DateNov 16, 2020

New technology allows more precise view of the smallest nanoparticles

A new optical imaging technology called PANORAMA has been developed to detect and study nanoscale objects as small as 25 nanometers in diameter. This technology uses unscattered light to monitor changes in transmission and determine the target's characteristics, making it possible to view nanoparticles directly without labeling.

SourceUniversity of Houston·JournalNature Communications·DateNov 16, 2020
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.

Key source of memories

A team of scientists has identified a region of the thalamus as a key source of top-down information, which is essential for processing sensory signals in the context of past experiences. This discovery sheds light on how the brain encodes and retrieves memories, particularly in cases of brain disorders such as autism and schizophrenia.

SourceUniversity of Freiburg·JournalScience·DateNov 16, 2020

New Fred Hutch-led trial shows no benefits of dairy foods for blood sugar regulation

A new study published in the American Journal of Clinical Nutrition found that consuming dairy foods did not directly affect blood sugar levels in people with metabolic syndrome. However, participants on a full-fat dairy diet gained weight and those on low-fat or full-fat diets experienced reduced insulin sensitivity.

SourceFred Hutchinson Cancer Center·JournalAmerican Journal of Clinical Nutrition·DateNov 16, 2020

Mercury from human activity and deep-sea animals

A study analyzing snailfish and amphipods from deep-sea trenches found high mercury concentrations, suggesting human activity contributes to ocean pollution. Mercury accumulates in fish consumed by humans, posing a health risk.

SourceProceedings of the National Academy of Sciences·JournalProceedings of the National Academy of Sciences·DateNov 16, 2020

Reversal of glial scar tissue back to neuronal tissue through neuroregenerative gene therapy

Researchers have developed a novel neuroregenerative gene therapy that converts glial cells back into functional neurons, reversing glial scar tissue. This treatment also promotes brain recovery in mouse models of ischemic stroke and Huntington's disease, offering a promising solution to the glial scar problem.

SourceGuangdong-Hongkong-Macau Institute of CNS Regeneration, Jinan University·JournalFrontiers in Cellular Neuroscience·DateNov 16, 2020
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.

Pharmacy dropboxes can help improve proper drug disposal, PSU study finds

A Portland State University study found that pharmacy dropboxes increase customer awareness of proper drug disposal and reduce improper disposal methods. The study suggests that legislation mandating dropboxes at pharmacies and industry funding for disposal are crucial to addressing this issue.

SourcePortland State University·JournalWaste Management·DateNov 16, 2020

Parent-offspring conflict in songbird fledging

A study analyzed 18 songbird species and found that postfledging bottlenecks increased the survival rate of at least one offspring, suggesting parental manipulation can harm fledglings. The findings imply that parent-offspring conflict may impact other animals' life transitions.

SourceProceedings of the National Academy of Sciences·JournalProceedings of the National Academy of Sciences·DateNov 16, 2020

Could robots for sex, friendship improve our aging society?

A new paper argues that robots designed for older adults can provide essential human values like social interaction, emotional fulfillment, and bodily integrity. The author suggests that Western cultures' narrow view of sex as lust needs to be challenged, and that robots can enable people to experience physical affection and self-respect.

SourceUniversity of Washington School of Medicine/UW Medicine·JournalJournal of Medical Ethics·DateNov 16, 2020
Apple iPhone 17 Pro

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

Virginia Tech lab proves the concept of a natural approach to antiperspirants

Researchers at Virginia Tech prove that the mixture of sodium, chloride, potassium, calcium, urea, and bicarbonates in sweat can clog sweat ducts naturally, replacing metallic salts. A lab experiment demonstrates this concept using artificial sweat and a microchannel, showing a gel-like plug forms to seal the duct.

SourceVirginia Tech·JournalACS Applied Materials & Interfaces·DateNov 16, 2020

Study shows geographic shift in U.S. social mobility

A recent study on US social mobility found that regions have shifted unevenly over the last century, with some areas scoring high in social mobility while others score low. The study, led by Arizona State University's Dylan Connor, tracked 2 million children from childhood to adulthood and found that urban Midwest areas have struggled ...

SourceArizona State University·JournalProceedings of the National Academy of Sciences·DateNov 16, 2020

One step for fibrosis, one giant leap for scleroderma

Researchers at MUSC discover lysyl oxidase plays key roles in promoting fibrosis in scleroderma, and its levels can be used to monitor treatment response. The findings suggest LOX could be a promising biomarker for assessing fibrosis progression or regression.

SourceMedical University of South Carolina·DateNov 16, 2020

Cosmic flashes come in all different sizes

Scientists have confirmed that magnetars, extreme stars with strong magnetic fields, generate fast radio bursts (FRBs). The discoveries were made using four European radio telescopes and provide new insights into the origins of FRBs. The research aims to pin down how these extreme stars create brief blasts of radiation.

SourceChalmers University of Technology·JournalNature Astronomy·DateNov 16, 2020
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.

New fiber optic sensors transmit data up to 100 times faster

Fiber optic sensors have been upgraded with an advanced encoding and decoding system, allowing for faster and more accurate data transmission over wider areas. This technology, developed by EPFL engineers, enables real-time monitoring of hazards such as pipeline cracks and civil engineering deformations.

SourceEcole Polytechnique Fédérale de Lausanne·JournalNature Communications·DateNov 16, 2020

Who is the world's best super-recogniser? This test could help us find them

A study published in PLOS One suggests that a freely available test, known as the UNSW Face Test, is able to rank facial recognition abilities with precision. Researchers argue that this test is perfect for identifying exceptional face recognisers and could lead to breakthroughs in fields such as law enforcement and national security.

SourceUniversity of New South Wales·JournalPLOS ONE·DateNov 16, 2020

'Alarming' COVID-19 study shows 80% of respondents report significant symptoms of depression

A national survey of over 1,000 young US adults finds alarming levels of loneliness associated with significant mental health issues, including depression, anxiety, substance use, and addiction. The study emphasizes the importance of providing access to psychological help and promoting social connectedness to address these problems.

SourceTaylor & Francis Group·JournalJournal of Psychoactive Drugs·DateNov 16, 2020

Scientists map and forecast apex predator populations at unprecedented scale

Researchers developed statistical methods to track and forecast wildlife populations across borders, revealing detailed dynamics of entire populations across large spatial scales. The study's findings provide new insights into wildlife management and conservation efforts for species like brown bears, grey wolves, and wolverines.

SourceNorwegian University of Life Sciences·JournalProceedings of the National Academy of Sciences·DateNov 16, 2020
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.

Fluke 87V Industrial Digital Multimeter

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

Minorities benefit less from regionalizing heart attack care

A new study by UC San Francisco researchers found that California's Black and Hispanic communities received less benefit from regionalized heart attack care protocols. Despite improved access to PCI-capable hospitals, survival rates remained unchanged for minority groups, whereas whites in non-minority communities showed better outcomes.

SourceUniversity of California - San Francisco·JournalJAMA Network Open·DateNov 16, 2020

Novel technique 'stuns' arthritis pain in shoulder and hip

A new outpatient procedure has been shown to provide significant pain relief for patients with moderate to severe osteoarthritis in their hip and shoulder joints. Treatment involves the placement of needles where sensory nerves exist, followed by a low-grade current that 'stuns' them, slowing pain transmission to the brain.

SourceRadiological Society of North America·DateNov 16, 2020
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.

Better than money? In-kind payments incentivize farmers to conserve agrobiodiversity

A new study found that in-kind payments successfully encouraged farmers to cultivate and conserve rare crops and varieties. The innovative payment scheme, known as Payment for Agrobiodiversity Conservation Services (PACS), has been well-received by farmers and policymakers in four Latin American countries.

SourceThe Alliance of Bioversity International and the International Center for Tropical Agriculture·JournalLand Use Policy·DateNov 16, 2020

Analysis paves way for more sensitive quantum sensors

Theoretical researchers at the University of Chicago have found a way to make quantum sensors exponentially more sensitive by harnessing a unique physics phenomenon. This breakthrough could lead to improved detection and diagnosis of diseases, prediction of natural disasters, and exploration without digging.

SourceUniversity of Chicago·JournalNature Communications·DateNov 16, 2020

Chronic inflammation causes a reduction in NAD+

Researchers at the Buck Institute have identified chronic inflammation as a driver of NAD+ decline, a key metabolite central to an efficient and healthy metabolism. Senescent cells activate CD38, which degrades NAD+, leading to age-related diseases. Blocking CD38 activity may offer a new target for therapeutic interventions.

SourceBuck Institute for Research on Aging·JournalNature Metabolism·DateNov 16, 2020

Boosted signal

Researchers at UC Santa Barbara have developed a new approach to boost NMR signal detection in previously 'invisible' regions. By using dynamic nuclear polarization with transition metal vanadium, they have created hyperfine DNP spectroscopy, which offers a broader frequency range and can analyze local chemistry around transition metals.

SourceUniversity of California - Santa Barbara·JournalChem·DateNov 16, 2020
Celestron NexStar 8SE Computerized Telescope

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

Study identifies patients with lung cancer most likely to respond to immunotherapy

Researchers found patients with a particular type of human leukocyte antigen (HLA) B44 were more likely to benefit from immunotherapy in melanoma but not non-small cell lung cancer. The study identified mutations driving the different responses, paving the way for better patient stratification and potential therapy design.

SourceUniversity of California - Los Angeles Health Sciences·JournalNature Cancer·DateNov 16, 2020

Randomized trial of laparoscopic, open liver surgery found no difference in long-term survival ou

A randomized controlled trial comparing laparoscopic and open liver surgery for patients with resectable colorectal liver metastases found no significant difference in 5-year survival outcomes. The study suggests that the laparoscopic approach may provide better short-term outcomes but does not jeopardize oncologic outcomes.

SourceAmerican College of Physicians·JournalAnnals of Internal Medicine·DateNov 16, 2020

New drug can improve fertility in women with reproductive health problems

A new study finds that a drug called MVT-602 can improve fertility in women with reproductive health problems by targeting the kisspeptin hormone system. The drug's longer duration of action allows for less frequent dosing, offering improved treatment options for conditions such as polycystic ovary syndrome and hypothalamic amenorrhea.

SourceImperial College London·JournalJournal of Clinical Investigation·DateNov 16, 2020

Newly discovered enzyme helps make valuable bioactive saponins

A research team at Osaka University has discovered a new enzyme that helps make valuable bioactive saponins, including glycyrrhizin, a potent natural sweetener with antiviral properties. The enzyme discovery opens novel routes for producing these high-value products commercially.

SourceOsaka University·JournalNature Communications·DateNov 16, 2020
Meta Quest 3 512GB

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

Gender pay gap among STEM graduates

A study analyzing data from 559 engineering and computer science students found that women earn less than men due to lower levels of self-efficacy. The authors suggest that career guidance, internships, and hiring practices that deemphasize self-confidence could help address the gender pay gap.

SourceProceedings of the National Academy of Sciences·JournalProceedings of the National Academy of Sciences·DateNov 16, 2020

Antibiotic exposure in children under age 2 associated with chronic conditions

A study of 14,572 children found that antibiotic use during the first two years of life is associated with an increased risk of asthma, respiratory allergies, eczema, obesity and attention deficit hyperactivity disorder. Antibiotic exposure was also linked to metabolic diseases, immunological diseases and cognitive conditions.

SourceRutgers University·JournalMayo Clinic Proceedings·DateNov 16, 2020

Carbon isotope shifts before end-Triassic extinction

A study reveals carbon dioxide from volcanic eruptions likely caused the end-Triassic mass extinction. The apparent increase in light carbon may have been caused by local sea level decline and microbial mats prior to the event.

SourceProceedings of the National Academy of Sciences·JournalProceedings of the National Academy of Sciences·DateNov 16, 2020
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.

Diaphragm pathology in critically ill patients with COVID-19

Researchers investigated COVID-19's effect on respiratory muscles in critically ill patients, comparing with non-COVID-19 cases. Severe COVID-19 was found to cause significant changes in the diaphragm, a crucial factor in patient outcomes.

SourceJAMA Network·JournalJAMA Internal Medicine·DateNov 16, 2020

Henderson island fossils reveal new Polynesian sandpiper species

A team of researchers has discovered a new species of Polynesian sandpiper, the Prosobonia sauli, from fossilized bones found on Henderson Island. The bird is believed to have gone extinct soon after humans arrived on the island, which archaeologists estimate happened no earlier than the eleventh century.

SourceCanterbury Museum·JournalZoological Journal of the Linnean Society·DateNov 16, 2020

US nephrology fellows' perceptions on home dialysis training

A study assessing US nephrology fellows' perceptions on home dialysis training found moderate preparedness for peritoneal dialysis and low confidence in home hemodialysis. The majority of trainees participated in continuity clinics and education, yet desired more focused teaching on PD and HHD.

SourceNational Kidney Foundation·JournalAmerican Journal of Kidney Diseases·DateNov 16, 2020

Spiny dogfish eat Atlantic cod: DNA may provide some answers

A recent NOAA study published in Ecology and Evolution reveals higher interaction rates between spiny dogfish and Atlantic cod than previously observed. The study uses genetic testing to confirm cod presence in dogfish stomachs, finding that small cod are more likely to be well-digested, making identification challenging.

SourceNOAA Northeast Fisheries Science Center·JournalEcology and Evolution·DateNov 16, 2020

New method brings physics to deep learning to better simulate turbulence

Researchers at the University of Illinois developed a new method that combines machine learning and physics to simulate turbulent flow, allowing for more accurate predictions in aerospace engineering. This method has the potential to improve design efficiency and reduce costs in industries such as air travel and spacecraft development.

SourceUniversity of Illinois Grainger College of Engineering·JournalJournal of Computational Physics·DateNov 16, 2020
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.

Scientific journal launches new series on the biology of invasive plants

The journal Invasive Plant Science and Management has launched a new series on the biology of invasive plants, focusing on emerging threats such as Pyrachantha augustifolia. The series aims to provide practical recommendations for intervening with invasive plant species and alerting biosecurity managers.

SourceCambridge University Press·JournalInvasive Plant Science and Management·DateNov 16, 2020

Changes in outpatient care delivery, telemedicine during COVID-19 pandemic

Researchers analyzed 16.7 million people's telemedicine and in-person visits during the 2020 COVID-19 pandemic to understand changes in outpatient care delivery. The study found that telemedicine compensated for declining volumes and geographic variation, suggesting a new model for healthcare delivery.

SourceJAMA Network·JournalJAMA Internal Medicine·DateNov 16, 2020
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.

Good long-term effects of continuous glucose monitoring

A University of Gothenburg study found that continuous glucose monitoring (CGM) has favorable effects over several years, including a 4 mmol/mol decrease in average blood glucose levels and a 70% reduction in episodes with low blood sugar levels. Patients also reported improved comfort and reduced anxiety.

SourceUniversity of Gothenburg·JournalDiabetes Care·DateNov 16, 2020