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Science News Archive May 2018


Page 40 of 44

Early HIV treatment key to avoiding brain atrophy

A new study suggests that early HIV treatment can prevent brain atrophy and cognitive decline, emphasizing the importance of timely antiretroviral therapy. By analyzing MRI data from patients with early HIV infection, researchers found that cART treatment halted volume loss and cortical thinning in several brain regions.

A new model for communication in plant cells

Researchers have discovered that plant cells use glutamate receptor-like proteins to build complex communication networks, with cornichon proteins regulating calcium ion concentrations. This finding opens new avenues for understanding cell-to-cell communication in plants and animals.

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.

Frequent sauna bathing reduces risk of stroke

A new international study found that frequent sauna bathing is associated with a reduced risk of stroke. The study involved 1,628 men and women aged 53-74 years living in eastern Finland and showed a significant decrease in stroke risk with increasing frequency of sauna use.

Study points to the futility of urine tests for salbutamol doping

A recent study published in British Journal of Clinical Pharmacology found that large variability in urine concentrations makes it impossible to determine an administered dose from a single untimed urine sample. This highlights the need to reconsider the use of urine tests for detecting salbutamol doping, as many violations will go unn...

At odds: Less sensory neurons induce stronger sensations of itch

Aging mice with fewer Merkel cells experience greater mechanically induced itch, suggesting a potential explanation for the loss of mechanical itch control under aging and chronic conditions. The study's findings contradict the intuitive notion that fewer sensory neurons would lead to weaker sensations.

Apple iPhone 17 Pro

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

Untangling DNA knots

MIT researchers have discovered the factors that determine whether a DNA knot moves along the strand or jams in place. By manipulating the electric field strength, they can induce knots to move towards one end of the molecule, potentially enabling more accurate genome sequencing and knot removal methods.

Revealing the remarkable nanostructure of human bone

The study reveals that bone's mineral crystals have a hierarchical structure integrated into the larger-scale skeleton, with 12 levels of hierarchy. The combination of mineral and protein forms continuous networks to provide strength essential for functional bones. This breakthrough builds on previous studies and sheds light on the uni...

The ExACT tools for safe autonomy

HRL Laboratories joins DARPA's Assured Autonomy program with the Expressive Assurance Case Toolkit (ExACT) to ensure autonomous vehicle systems perform as programmed without unsafe behavior. The tool kit mathematically verifies algorithms lead to safe and reliable system behavior, considering physics and dynamics of the system.

Solar powered sea slugs shed light on search for perpetual green energy

A Northeast sea slug has been found to store millions of algal plastids in its gut lining after pilfering them from the brown alga Vaucheria litorea, a food source rich in tiny solar panels. The sea slug survives solely on photosynthesis for up to six months by protecting and utilizing the stolen plastids.

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.

Mystery solved: The bacterial protein that kills male fruit flies

Researchers at EPFL identify a protein, Spaid, produced by the bacterium Spiroplasma poulsonii, which induces male-killing in fruit flies. This discovery sheds light on the molecular mechanism underlying this phenomenon and has significant implications for fields of symbiosis, sex determination, and evolution.

Bowel disease study points to new therapies for lifelong conditions

Researchers discovered tiny DNA fragments, mtDNA, in patients' blood samples that are associated with disease flare-ups. These molecules can trigger an inflammatory response and damage to healthy tissues, causing symptoms of bowel diseases like Crohn's and ulcerative colitis.

Bacteria therapy for eczema shows promise in NIH study

Researchers found that topical treatment with live Roseomonas mucosa was safe and associated with reduced disease severity in adults and children with eczema. The study's findings support further evaluation of this potential new therapy for atopic dermatitis, a condition linked to increased risks of asthma, hay fever, and food allergy.

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.

Plant relationships breakdown when they meet new 'fungi'

Researchers discovered that plant-fungal relationships can break down due to the emergence of more efficient nutrient sources. Plants often replace fungi with other cooperative partners or evolve new strategies, such as becoming carnivorous plants to obtain essential nutrients.

Highly elastic biodegradable hydrogel for bioprinting of new tissues

Researchers at the University of Texas at Arlington have developed a highly elastic biodegradable hydrogel for bio-printing of materials that mimic natural human soft tissues. The material can generate multiple types of human soft tissues, including skin, skeletal muscles, blood vessels, and heart muscles.

A sophisticated design to turn saltwater into freshwater

Researchers have developed a sophisticated membrane design that boosts water flux by five-fold, surpassing traditional nanofiltration membranes. The new system exhibits excellent water-salt separation ability and maintains high water permeability and selectivity.

Meta Quest 3 512GB

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

Optimizing personalized treatment strategies for stroke patients

The PRECISE4Q project aims to develop computer-based predictive modeling to personalize and optimize treatment strategies for stroke patients. The project will collect large data sets from different sources, integrating them into self-learning computer models to minimize the burden of stroke on individuals and society.

Should ethics or human intuition drive the moral judgments of driverless cars?

A study published in Frontiers in Behavioral Neuroscience found that people are willing to sacrifice themselves for others, consider victim age, and swerve onto sidewalks to minimize lives lost, contradicting ethically acceptable behavior and political guidelines. Researchers aim to initiate discussions on how self-driving vehicles sho...

New study sheds light (and some shade) on anole diversification

A new study reveals that thermal physiological differences allowed Greater Antillean anoles to occupy different microclimates, facilitating species coexistence. The research found that species diverged in thermal tolerance and sprint performance, with warmer environment species having higher maximum temperatures and optimal temperatures.

Community helminth control programs may reach more children than school programs

Researchers report that expanding community-level control programs for soil-transmitted helminths (STHs) can reach more children than traditional school-based programs. In a pilot study, community-based deworming and water, sanitation, and hygiene interventions showed a 58% reduction in STH infections among participating children.

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.

Essential malaria parasite genes revealed

A team of researchers has identified approximately 2,600 genes essential to the growth and survival of Plasmodium falciparum, a deadly malaria parasite. These findings could aid in the development of new or improved antimalarial drugs, highlighting key targets for future research.

Fasting boosts stem cells' regenerative capacity

A 24-hour fast can reverse age-related decline in intestinal stem cells' regenerative capacity. Fasting induces a metabolic switch that enhances stem cell function, which can be reproduced by activating PPARs with a molecule.

Mercury rising: Are the fish we eat toxic?

A study by Université de Montréal researchers found that 38% of countries' populations are exposed to methylmercury levels higher than safe for foetal development, with high-risk areas including the Maldives and South Korea. Industrial fishing has increased mercury exposure, especially in coastal and island nations.

Interconnected cells-in-a-dish let researchers study brain disease

Salk scientists develop a new way to study brain cell connections, revealing how communication is altered in people with schizophrenia. By creating multiple types of neurons from stem cells and observing their interactions, the team showed that CA3 pyramidal neurons form physical connections both to other CA3 neurons and to DG neurons.

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.

Women who eat fast food and little or no fruit take longer to become pregnant

A recent study published in Human Reproduction found that women who consume more fast food and less fruit take longer to become pregnant. The research, which analyzed data from over 5,500 women, suggests that a diet rich in fruits and low in fast food can improve fertility and reduce the time it takes to get pregnant.

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.

Walnuts impact gut microbiome and improve health

A study published in The Journal of Nutrition found that consuming walnuts increases beneficial microbes that produce butyrate, a compound supporting colonic health. Walnut consumption also reduced LDL-cholesterol levels and secondary bile acids, potentially reducing colorectal cancer risk.

Paramedics find better drug to tame violent patients

A recent study found that paramedics using the new drug droperidol sedate patients nearly 70% quicker than those receiving midazolam, with fewer side effects. The Queensland Ambulance Service introduced droperidol in 2016 to reduce violence against paramedics.

QUT joins fight to save wombats

The QUT Design Lab has partnered with the Sleepy Burrows Wombat Sanctuary to develop an Australian-first 'hospital' burrow for treating manged wombats. The prototype design aims to improve treatment times and survival rates, with data collected in a field study helping refine the design.

Apple Watch Series 11 (GPS, 46mm)

Apple Watch Series 11 (GPS, 46mm) tracks health metrics and safety alerts during long observing sessions, fieldwork, and remote expeditions.

Improving 3-D printing of plastic parts

Researchers developed structured core-shell polymer filaments to improve the strength of 3-D printed plastics. The new filaments have a polycarbonate core and an olefin ionomer shell, which self-reinforce the printed parts and make them more resistant to impacts.

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.

Novel reaction could spark alternate approach to ammonia production

Researchers at Oak Ridge National Laboratory have discovered a new type of catalytic reaction that generates ammonia from nitrogen and water using an electric field and nanoscale carbon spikes. The process occurs at room temperature and could lead to more energy-efficient and environmentally friendly methods for fertilizer production.

Scientists make major breakthrough on omega-3 production

Researchers find that many invertebrates, including corals and molluscs, can produce omega-3 fatty acids through enzymes called desaturases. This breakthrough challenges the long-held principle that marine microbes are responsible for primary production of omega-3.

Sirius qualifies suppliers for the high-tech market

Brazil's new synchrotron light source, Sirius, has selected 23 suppliers from 18 firms to develop its high-tech components. The suppliers were chosen based on their ability to develop world-class advanced technologies and meet the project's strict parameters.

Kickoff of the DynaMORE resilience research project

The DynaMORE project aims to develop a personalized computer model that can measure and enhance psychological resilience in individuals. The model will provide support to those experiencing difficult stages of life or trauma, offering recommendations to improve resilience and prevent stress-related problems.

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.

Brick by brick: Assembly of the measles virus

Researchers capture images of measles viruses as they emerge from infected cells, gaining insights into the internal organization and potential antiviral strategies. The study reveals a scaffold-like matrix protein acting as a framework for viral assembly.

Blood pressure-regulating hormone may be a key marker of sociality in monkeys

Researchers found a potential biomarker for autism spectrum disorder (ASD) in monkeys with low social behavior, which had lower arginine vasopressin concentrations in their cerebrospinal fluid. This discovery suggests that AVP may be a target for developing new drugs to alleviate social impairment in ASD patients.

Math sheds light on how living cells 'think'

Researchers have developed new mathematics to understand how proteins work together as an integrated network within cells, enabling them to adapt and reset themselves after exposure to a new stimulus. This finding has potential applications in various fields, including cancer therapies and understanding the human hormone system.

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.

Using Google Street View to estimate travel patterns in cities

A recent study published in PLOS ONE used Google Street View images to estimate walking, cycling, and other travel patterns in cities. The researchers found strong correlation with data from the 2011 census and Active People Survey, suggesting that Google Street View has great potential for understanding urban travel.

River dolphins are declining steeply in the Amazon basin

Populations of freshwater dolphins in the Amazon basin are declining rapidly, with both boto and tucuxi species facing severe decline rates. The study reveals that these species would be classified as Critically Endangered under IUCN Red List criteria if current trends continue.

No corners or edges

Peter Wasserscheid receives second Advanced Investigator Grant from European Research Council to explore fundamental new concept in catalysis based on metal droplets with low melting point. This research has the potential to replace expensive precious metals with cost-effective alternatives.

Cracking open the formation of fossil concretions

Researchers at Nagoya University developed a method to analyze concretions using L-shaped cross-plot diagrams, revealing that they grow quickly due to the presence of organic matter. The study found that concretions can preserve well-preserved fossils of soft tissues, which are rarely fossilized under other conditions.

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.