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Science News Archive November 2018 - Page 6


Page 6 of 42

'Stash your trash,' say rat researchers

Researchers found that areas with higher rat complaints had increased trap rates and more garbage, suggesting a correlation between waste and rodent abundance. The study also revealed neighborhoods with high rental units tended to have more rats, possibly due to increased trash and access points.

SourceFrontiers·JournalFrontiers in Ecology and Evolution·DateNov 28, 2018

Jumpin' droplets! Researchers seek to improve efficiency of condensers

Materials scientists have developed a new strategy to keep condensed droplets from coalescing into a film, allowing for more efficient heat transfer. The approach uses superomniphobic surfaces with knife-like ridges to create 'jumping' droplets that repel and move away from the condenser surface.

SourceColorado State University·JournalScience Advances·DateNov 28, 2018

NIST atomic clocks now keep time well enough to improve models of Earth

The new NIST clock records set three important measures: systematic uncertainty, stability, and reproducibility. The clocks' total error drops below our general ability to account for gravity's effect on time here on Earth. This achievement enables the detection of faint signals from the early universe and perhaps dark matter.

SourceNational Institute of Standards and Technology (NIST)·JournalNature·DateNov 28, 2018
Apple iPhone 17 Pro

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

Mechanism safeguarding unique epigenome of oocytes and maternal fertility

A novel DNA methylation regulator Stella has been identified to safeguard the unique epigenome of oocytes. The dysregulation of Stella results in aberrant DNA methylation during postnatal oogenesis, affecting preimplantation embryo development. DNMT1 is found to be responsible for this aberrant methylation.

SourceChinese Academy of Sciences Headquarters·JournalNature·DateNov 28, 2018

Do magazine-ranked hospitals for cardiovascular care have better outcomes?

A study found top-ranked hospitals for cardiovascular care had lower 30-day mortality rates for heart attack, heart failure, and CABG compared to non-ranked hospitals. However, readmission rates were either similar or higher at the top-ranked hospitals, raising concerns about the accuracy of this metric.

SourceJAMA Network·JournalJAMA Cardiology·DateNov 28, 2018

A new drug to prevent life-threatening swelling attacks

Researchers have developed an effective monoclonal antibody treatment, lanadelumab, that can reduce the frequency of life-threatening swelling attacks in patients with hereditary angioedema. The treatment has shown a 90% reduction in attack rate and can be self-administered every two weeks.

SourceCharité - Universitätsmedizin Berlin·JournalJAMA·DateNov 28, 2018
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.

Fires fueled spread of grasslands on ancient Earth

A new study links frequent, seasonal fires to the formation and expansion of ancient grasslands. The researchers used a novel approach to analyze plant biomarkers in fossil soils, revealing that fire played a crucial role in shaping the landscape.

SourcePenn State·JournalProceedings of the National Academy of Sciences·DateNov 28, 2018

New stem-cell therapy to improve fight against leukemia

Researchers at the University of Zurich identified a molecule that plays a key role in graft-versus-host responses, which can be fatal for leukemia patients. Blocking this molecule, GM-CSF, could significantly improve stem-cell transplant outcomes.

SourceUniversity of Zurich·JournalScience Translational Medicine·DateNov 28, 2018

When a city feels good, people take more risks

Researchers found that unexpected positive outcomes in cities, such as sports wins or sunny days, are correlated with a change in city mood and an increase in citizens taking risks like gambling. This effect is subtle but significant, with a predicted 2.5% increase in spending on gambling in reactive neighborhoods.

SourceMcGill University·JournalPLOS ONE·DateNov 28, 2018
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.

The potentially deadly bacterium that's on everyone's skin

Researchers have identified a set of genes that enable S. epidermidis to cause disease in certain circumstances, making it a major concern for those undergoing surgery. The study aims to identify patients at high risk of infection before surgery, reducing the risk of post-operative infections.

SourceUniversity of Bath·JournalNature Communications·DateNov 28, 2018
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.

Discovery of the first common genetic risk factors for ADHD

A global team of researchers has identified 12 genomic regions associated with ADHD, suggesting a significant role in brain-related processes. The study found that diagnosed ADHD shares much of the same genetic background as traits of ADHD in the general population, at a correlation rate of around 97%.

SourceCardiff University·JournalNature Genetics·DateNov 27, 2018

Touch can produce detailed, lasting memories

A study published in Psychological Science found that exploring objects through touch generates durable memories, even when participants don't intend to memorize details. Participants recalled objects with high accuracy after just one week, challenging existing cognitive and neural models of memory storage.

SourceAssociation for Psychological Science·JournalPsychological Science·DateNov 27, 2018

Solving a 75-year-old mystery might provide a new source of farm fertilizer

Researchers at Georgia Institute of Technology have confirmed the existence of a long-hypothesized interaction between nitrogen and titanium dioxide in the presence of light. This catalytic reaction could provide a new source of farm fertilizer, reducing costs for farmers in developing nations.

SourceGeorgia Institute of Technology·JournalJournal of the American Chemical Society·DateNov 27, 2018
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.

Freeze-dried polio vaccine could spell end of disease

Researchers at USC have developed a freeze-dried polio vaccine that retains potency through rehydration, providing full protection against the polio virus. The breakthrough could bring an end to this longtime foe in countries where vaccination rates are spotty.

SourceUniversity of Southern California·JournalmBio·DateNov 27, 2018

On the trail of rare genetic disease, scientists uncover key immune regulator

Researchers at Scripps Research have identified a crucial immune system-regulating protein called ABHD12, which is linked to a rare genetic disease featuring brain and nerve problems. The study suggests that targeting ABHD12 may offer new avenues for treating cancers and chronic viral infections.

SourceScripps Research Institute·JournalNature Chemical Biology·DateNov 27, 2018

First calf born following IVF embryo breakthrough

University of Kent researchers have successfully used IVF embryo breakthrough technology to screen for genetic merit and chromosome disorders in cattle. This innovative approach allows for earlier decision-making on the quality of breeding stock and more efficient delivery of genetically screened embryos to farms.

SourceUniversity of Kent·JournalTheriogenology·DateNov 27, 2018

Advanced imaging technology measures magnetite levels in the living brain

Researchers have used magnetoencephalography to measure magnetite levels in the human brain, which could lead to new studies on its role in neurodegenerative diseases. The study found greater accumulation of magnetite in the brains of older individuals, primarily in the hippocampus.

SourceMassachusetts General Hospital·JournalHuman Brain Mapping·DateNov 27, 2018
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.

Oxygen could have been available to life as early as 3.5 billion years ago

Research suggests that oxygenic photosynthesis could have occurred at least one billion years before the emergence of cyanobacteria, a key factor in increasing atmospheric oxygen levels. This finding has significant implications for our understanding of the origins of complex life and its potential evolution on other planets.

SourceImperial College London·JournalGeobiology·DateNov 27, 2018

Predators drive Nemo's relationship with an unlikely friend

A University of Queensland and Deakin University-led study reveals that predators drive the evolution of cooperative relationships between species like clownfish and anemones. The research found that fish-anemone mutualisms have evolved at least 55 times across 16 fish families over the past 60 million years.

SourceUniversity of Queensland·JournalEcology Letters·DateNov 27, 2018

Wriggly, squiffy, lummox, and boobs: What makes some words funny?

A University of Alberta study found that two types of word predictors determine funniness: form predictors measure word sound and writing similarity, while semantic predictors relate to emotions and categories like sex and bodily functions.

SourceUniversity of Alberta·JournalJournal of Experimental Psychology·DateNov 27, 2018
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.

British Journal of Cancer press notice

Researchers have discovered that dasatinib sensitizes triple negative breast cancer cells to chemotherapy by targeting breast cancer stem cells. Additionally, a systematic review and meta-analysis found an increased risk of second cancers at sites associated with HPV after a prior HPV-associated malignancy.

SourceCancer Research UK·JournalBritish Journal of Cancer·DateNov 27, 2018

Stigma impairs cognition in men living with HIV

A recent study found a direct link between the amount of stigma men with HIV report experiencing and their scores on cognitive tests, measuring abilities like memory and attention. The researchers suggest that addressing stigma may address cognitive impairment in this population by reducing anxiety and depression.

SourceMcGill University·JournalJAIDS Journal of Acquired Immune Deficiency Syndromes·DateNov 27, 2018
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.

Shedding a new light on optical trapping and tweezing

Wits physicists have developed a new device for manipulating and moving tiny objects, such as single cells in a human body or tiny particles in small volume chemistry, using the full beam of laser light. The device uses vector holographic trapping and tweezing to control and manipulate minute objects with high precision.

SourceUniversity of the Witwatersrand·JournalScientific Reports·DateNov 27, 2018

Electrical stimulation in the nose induces sense of smell in human subjects

Physicians at Massachusetts Eye and Ear successfully induced a sense of smell in human subjects by stimulating nerves in the olfactory bulb. The breakthrough opens doors for developing implant technology to restore smell in those who have lost it, with potential applications in treating anosmia.

SourceMass Eye and Ear·JournalInternational Forum of Allergy & Rhinology·DateNov 27, 2018

How water fleas detect predators

Researchers at Ruhr-University Bochum discovered that water fleas detect predator presence through a cocktail of signalling molecules secreted by Chaoborus larvae during digestion. The fleas respond by growing defensive features such as neckteeth and spines, making them harder to consume.

SourceRuhr-University Bochum·JournalNature Chemical Biology·DateNov 27, 2018

Fitbits go the distance in running study

A study by La Trobe University found that Fitbits have good-to-excellent reliability for measuring running speeds between 8-14kms/h. The accuracy of the device was also confirmed in a slow motion visual count, with a difference of less than one per cent.

SourceLa Trobe University·JournalInternational Journal of Sports Physical Therapy·DateNov 27, 2018
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.

'Dancing' hyperon in pear-shaped hypernuclei

The study of 'dancing' hyperons in pear-shaped hypernuclei reveals unique behaviors and new insights into fundamental interactions. Researchers found that the hyperon's spatial distribution has a spherical symmetry when occupying the lowest-energy state, shrinking nuclear size and decreasing quadrupole deformation.

SourceScience China Press·DateNov 27, 2018

The warm and loving tegu lizard becomes a genetic resource

The tegu lizard's genome has been sequenced to an unprecedented level of quality, revealing its ability to regulate its body temperature and potentially threatening native species. The high-quality genome assembly will aid scientists in studying other lizards and snakes, shedding light on their evolutionary history.

SourceGigaScience·JournalGigaScience·DateNov 27, 2018
Fluke 87V Industrial Digital Multimeter

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

First ancient DNA from mainland Finland reveals origins of Siberian ancestry in region

The study found the earliest evidence of Siberian ancestry in Fennoscandia in a population inhabiting the Kola Peninsula, Russia, dating to around 4,000 years ago. Ancient DNA from Finland reveals that people genetically similar to present-day Saami people inhabited areas in much more southern parts of Finland than the Saami today.

SourceMax Planck Institute of Geoanthropology·JournalNature Communications·DateNov 27, 2018

Threatened tropical coral reefs form complex, ancient associations with bacteria

A team of researchers has conducted a comprehensive survey of healthy corals, revealing that coral bacteria form complex associations with different sections of the coral body. The study found that distinct microbial communities exist in each tissue type, with the hard skeleton containing the greatest diversity of bacteria.

SourceUniversity of Washington·JournalNature Communications·DateNov 27, 2018

Researchers discover clues to brain changes in depression

Scientists at the University of Maryland School of Medicine discovered changes in brain activity linked to the brain's reward memory response in depression. The research found that the strength of signals between two brain regions is critical for processing rewarding stimuli.

SourceUniversity of Maryland School of Medicine·JournalNature·DateNov 27, 2018
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.

Discovery opens new opportunities to slow or reverse MS

Mature oligodendrocytes have been found to be capable of remyelinating damaged axons, suggesting a potential new target for treating multiple sclerosis. This discovery opens up new avenues for slowing or reversing the disease by promoting the activity of these cells.

SourceUniversity of Wisconsin-Madison·JournalProceedings of the National Academy of Sciences·DateNov 27, 2018
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.

Not just a pretty face: Botulinum toxin shows promise in trials to reduce post-operative atrial fibrillation (POAF) in cardiac surgery patients

Two clinical trials using botulinum toxin injections to suppress post-operative atrial fibrillation (POAF) showed promising results. Patients who received BTX injections during surgery had a sustained reduction in POAF incidence and overall burden over three years, accompanied by reduced hospitalization needs.

SourceElsevier·JournalHeart Rhythm·DateNov 27, 2018
Meta Quest 3 512GB

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