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Science News Archive August 2018


Page 38 of 41

Microbes go dark to stay warm in cooler climates

Researchers found that dark-pigmented yeasts capture more heat from the sun and thrive in colder conditions than their light-colored counterparts. This 'thermal melanism' effect could help predict microbial survival at different latitudes as temperatures rise.

A kernel of promise in popcorn-powered robots

Researchers at Cornell University have developed a novel substance that can be used to power inexpensive robotic devices, enabling them to grip, expand or change rigidity. The study's findings suggest that popcorn could be used to create miniature jumping robots and edible devices for medical procedures.

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.

Scale-invariant resistivity in cuprates

Researchers discovered a new property in cuprate superconductors where resistivity scales linearly with high magnetic fields. This finding contradicts existing theories and suggests non-quasipartical mechanisms are at play.

New lung cell type discovered

A new type of airway cell, pulmonary ionocytes, has been found to express high levels of CFTR, a protein mutated in cystic fibrosis. This discovery provides promising targets for future therapeutic strategies against the disease.

Thin films can enhance vorticity in the ocean

Researchers found that thin liquid and insoluble films on the surface of water enhance horizontal eddy currents by interacting with surface waves. This enhances vertical vortex flows near the surface, which affects surface wave amplitude. The study's results have potential applications in materials science, geophysics, and ocean analysis.

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.

World experts target guidance on managing dementia symptoms

New research suggests that non-drug approaches should be prioritised in treating agitation in people with Alzheimer's disease, ranking assessment and management of underlying causes as the top treatment. Non-pharmacological treatments such as person-centred care and tailored activity programmes are also recommended for managing symptom...

New study shows some corals might adapt to climate changes

A new study found that some corals can adapt to climate change, with the mountainous star coral surviving elevated temperatures and recovering quickly. In contrast, staghorn coral was highly sensitive to heat stress, experiencing 100% mortality after just 25 days.

Psychologists find that acting is the key to remembering tasks

Researchers found that 'acting out' scenarios can improve prospective memory, a skill that reminds people to take action in the future. The study suggests that this technique may support individuals with mild cognitive impairment, leading to safer, more independent living.

Apple iPhone 17 Pro

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

Clothing, furniture also to blame for ocean and freshwater pollution

A new study reveals that clothing, furniture, and other non-food products are significant contributors to ocean and freshwater pollution. The researchers used a modeling tool to calculate country-specific 'eutrophication footprints', which show that the EU's non-food consumption primarily generates pollution in other regions.

Study challenges evolution of how humans acquired language

Researchers re-analyzed genetic data from diverse humans and Neanderthals, revealing no evidence of recent human-specific selection on the FOXP2 gene. This challenges previous theories on the origin of human language and highlights the importance of using diverse datasets in population genetics.

How plant-rotting bacteria steal iron to survive

A new study reveals how plant-rotting bacteria obtain essential iron for survival by pirating it from host plants' iron-bearing proteins. The bacterium Pectobacterium uses a membrane channel to import the protein ferredoxin, which is then processed to release iron.

pH imbalance in brain cells may contribute to Alzheimer's disease

A study suggests a simple imbalance in acid-alkaline chemistry inside endosomes may lead to amyloid protein accumulation and nerve cell degeneration. Researchers found that histone deacetylase inhibitors can reverse pH problems and improve amyloid beta clearance in lab-grown mouse brain cells.

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.

A short genetic history of the Flores Island pygmies

The study of Flores pygmy humans shows they have Neanderthal and Denisovan ancestry, but no direct link to Homo floresiensis. The short-statured phenotype is a result of recent polygenic selection on standing genetic variation.

Broadband Internet causes sleep deprivation, a new study finds

A new study by Bocconi University scholars found that broadband internet access causes sleep deprivation, particularly among individuals with DSL lines. These individuals sleep 25 minutes less than those without DSL Internet and are less likely to reach the recommended amount of sleep, leading to significant economic losses in Germany.

Mysterious DNA modification important for fly brain

A team of Emory scientists has identified an enzyme that removes N6-methyladenine from Drosophila DNA, crucial for neuronal development. The finding provides insights into the role of this modification in humans, particularly in relation to Polycomb proteins.

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.

Key piece identified for slowing a colorectal cancer subtype

A study published in Nature Communications reveals that inhibiting Jagged 1 protein can prevent colon and rectal tumour growth, even removing existing tumours. This approach may offer a promising therapeutic strategy for selectively targeting malignant stem cells in colon cancer.

Genome regulation of cell type cataloged in mouse at single-cell level

Scientists have created a comprehensive atlas of the mouse genome's regulatory landscape, revealing how DNA elements regulate cell type identity and identifying potential links to human diseases. The study cataloged over 400,000 regulatory elements and assigned most patterns to specific cell types.

Radar better than weather balloon for measuring boundary layer

Researchers developed a more comprehensive method for measuring the Earth's boundary layer depth using radar, which constantly ebbs and flows. This improvement in accuracy can lead to better forecasts for severe weather events, air pollution, and wildfire forecasting.

Meta Quest 3 512GB

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

Plants can tell the time using sugars

A study discovered that plants regulate their internal 'circadian clock' using sugars from photosynthesis to stay in tune with day and night cycles. This process enables plants to match their activities to the time of day, crucial for growth, flower opening, and energy reserve management.

Old mining techniques make a new way to recycle lithium batteries

A team of Michigan Tech students has developed a method to recycle lithium-ion batteries using old mining technologies, resulting in inexpensive and energy-efficient processes. The process separates valuable materials like lithium, graphite, and cobalt, making them suitable for remanufacturing into new batteries.

Field test for dog Leishmania exposure evaluated

A new field test has been developed to rapidly screen dogs for exposure to Phlebotomus pernicious sand flies, the primary vector of Leishmania infantum. The immunochromatographic test (ICT) shows high sensitivity and specificity in detecting antibodies against the fly's salivary protein.

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.

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.

Mapping blue carbon in mangroves worldwide

Mangroves are found in tropical coastal settings worldwide and can store greater amounts of carbon than any other terrestrial ecosystem. A new study provides more accurate estimates of blue carbon storage, revealing that it has been underestimated by up to 50% in some areas and overestimated by up to 86% in others.

Preventing natural hazards from becoming societal disasters

A new tool called DesignSafe is helping researchers improve their ability to predict hurricanes, move people out of harm's way, and build homes that can survive the worst nature can throw at them. The platform provides critical information about natural hazards and enables engineers to design safer structures.

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.

Astronomers blown away by historic stellar blast

Researchers observe light echoes from Eta Carinae and its surroundings to decode the extent of a historic stellar blast. The team determines that the star released almost as much energy as a typical supernova explosion, but a double-star system remained intact.

Lung cancer screening guidelines inadequate for high-risk minorities

The study found that individuals from underrepresented communities are more likely to have positive scans and diagnosed lung cancer cases, highlighting the need for more expansive, risk-based screening guidelines. The researchers suggest considering additional factors such as a history of chronic obstructive pulmonary disease and socio...

Wearable devices: Useful medical insights or just more data?

A new review questions the usefulness of wearable devices in providing medical insights, citing limited formal validation and potential risks of misinterpretation. The study highlights concerns about concussion detection technologies and the need for rigorous evaluation and regulation of the growing industry.

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.

Stem cell research for cystic fibrosis leaps forward

Researchers at the University of Adelaide successfully applied cell transplantation therapy to replace damaged cells in CF patients, providing a potential cure. The innovative method involves harvesting adult stem cells from the lungs, correcting them with gene therapy, and reintroducing them back into the patient.

When the seed becomes a plant, it has 48 hours to survive

Researchers at Université de Genève reveal the mechanism of seed germination, where proplastids differentiate into chloroplasts within 48 hours. The process is controlled by growth hormone gibberellic acid and protein TOC159, ensuring rapid transition to autonomous growth.

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.

Fecal deposits reveal the fruit fly's pheromone flag

Researchers at RIKEN Center for Brain Science discovered that male fruit flies deposit droppings as pheromone-laced landmarks to signal their presence, attracting females and increasing mating chances. This finding highlights the importance of fecal deposits in social communication among flies.

New study shows smoking can affect breastfeeding habits

Researchers found that exposure to household smoke shortens breastfeeding duration, and fathers who smoke are less likely to prefer breastfeeding. The study suggests quitting smoking before pregnancy is crucial for new mothers.

Obesity extends duration of influenza A virus shedding

A multi-year study of Nicaraguan households found that obesity extends the duration of influenza A virus shedding from infected adults by approximately 1.5 days, compared to non-obese adults. Chronic inflammation caused by obesity and increasing age are implicated as reasons for extended viral shedding.

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.

'Strange metals' just got stranger

Researchers at Florida State University's National High Magnetic Field Laboratory have discovered that cuprates, known for their unique behavior, carry current in a non-conventional way. The study reveals that the electrons seem to cooperate as they move through the material, contradicting the widely accepted understanding of conventio...

New method refines cell sample analysis

The Iterative Indirect Immunofluorescence Imaging (4i) technique refines standard immunofluorescence imaging by visualizing up to 40 proteins in a single cell. A new computer program, Multiplexed Protein Maps, analyzes the data and generates maps of protein distribution, providing a systematic survey of cellular organization.

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.

Study challenges evolution of FOXP2 as human-specific language gene

Researchers analyzed genetic data from diverse humans and Neanderthals, finding no evidence for recent, human-specific selection of FOXP2. The study revises the history of how humans acquired language, highlighting the importance of using diverse datasets in population genetics.

Scientists measure severity of drought during the Maya collapse

Researchers measured isotopes of water trapped in gypsum to determine changes in rainfall and relative humidity during the Maya downfall. Annual precipitation decreased by 41-54% and relative humidity declined by 2-7%. These findings support theories that drought contributed to the Maya civilization's collapse.