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Science News Archive October 2018


Page 36 of 47

String theory: Is dark energy even allowed?

Recent developments in string theory suggest a paradigm shift could be imminent, with some theories being incompatible with dark energy. Timm Wrase's calculations reveal that certain fields may not exist in string theory, contradicting the Higgs field's properties.

Lessons from the 1918 flu pandemic, 100 years on

A new study on the 1918 flu pandemic reveals that a complex interplay of viral, host, and societal factors contributed to its severity. The researchers warn that future pandemics will face challenges such as changing population demographics, antibiotic resistance, and climate change.

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.

Genes responsible for difference in flower color of snapdragons identified

Researchers at IST Austria identified two genes that determine magenta and yellow flower colors in snapdragons, which are separated by a hybrid zone. The study found that selection favored new variants of these genes, making the flowers more attractive to bees, while also creating barriers to gene exchange.

Potential assay artefacts in anti-malarial screening documented

The study identifies 14 common chemicals that can impact assay conclusions without compromising plasmodium growth and proliferation. The team estimates maximum allowable concentrations compatible with the assay, ensuring normal parasite survival and proliferation.

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.

Getting a grip on the slow but unique evolution of sharks

Researchers analyzed two shark species' genomes and compared them to those of vertebrate species to understand their evolution. They found that sharks have massive insertions of repetitive elements in their genomes, which may contribute to their slow evolution.

Increase in plastics waste reaching remote South Atlantic islands

A new study reveals a significant increase in plastic waste reaching remote South Atlantic islands, with over 90% of beach debris being plastic. The researchers found high concentrations of plastic on beaches and up to 300 items per meter of shoreline, approaching levels seen in industrialized North Atlantic coasts.

New discovery restores insulin cell function in type 2 diabetes

Scientists have discovered a way to restore normal insulin cell function in type 2 diabetes by blocking a protein called VDAC1. The study showed that the substance can prevent the development of the disease and improve glucose control. Further studies are needed, but the findings offer new hope for treatment options.

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.

Vaccinating humans to protect mosquitoes from malaria

A new biotechnology advancement may boost the efficacy of a transmission-blocking vaccine (TBV) that prevents mosquitoes from spreading malaria. The vaccine, which induces humans to make malaria-attacking antibodies, could reduce malaria spread in sub-Saharan Africa where the disease kills over 400,000 people annually.

Biodiversity loss under warming conditions

A warming-induced shift in microbial community composition requires more biodiversity to maintain ecosystem function due to the increased likelihood that remaining species will not tolerate rising temperatures. The study suggests that warmer conditions may accelerate the impacts of biodiversity decline on ecosystems.

Apple iPhone 17 Pro

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

Salt: Mover and shaker in ancient Maya society

The ancient Maya produced salt in large quantities, salting fish and meat to meet dietary needs, and traded it as a commodity. This discovery substantiates the model of regional production and distribution of salt for the Classic Maya.

Work environment challenges nurses trying to adopt healthy behaviors

A new study found that nurses face significant challenges in adopting healthy behaviors, with only a few percent meeting physical activity guidelines and eating a balanced diet. The research highlights the need for workplace programs tailored to individual motivation and readiness to change.

Scientists pinpoint pathway that impacts features of autism

Researchers at Florida Atlantic University have identified a brain-signaling pathway that can be manipulated to reverse autism-related changes in genetically engineered mice. The study suggests a novel approach to treating autism spectrum disorder (ASD) by targeting an enzyme associated with stress and inflammation.

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.

Facial expressions representing pain and pleasure

A study of 80 observers from Western and East Asian cultures reveals that mental representations of pain are similar, while those of orgasm contain culture-specific elements. Facial expressions serve a communicative role, with cultural influences shaping their representation.

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.

Risk of attempted suicide among sexual minority adolescents

A systematic review and meta-analysis found that sexual minority adolescents are at a greater risk of attempted suicide compared to their heterosexual peers. The study estimated over 2.3 million heterosexual and 113,468 sexual minority adolescents from 35 studies conducted in 10 countries.

Recovering from a heart attack? Hold the antibiotics

Researchers found that mice recovering from heart attacks are more likely to die if treated with antibiotics, which can eliminate both bad and good microbes. Restoring the gut microbiome through fecal transplants or probiotics boosted survival rates.

Volatile evaporation on the Moon

Researchers used chromium isotopes to investigate the conditions under which the Moon's volatile elements evaporated. They found that the temperature of evaporation was around 1600-1800 K, significantly lower than previously thought if evaporation occurred during the giant Moon-forming impact.

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.

Climate change and mental health

Researchers analyzed data from nearly 2 million US residents and found a correlation between rising temperatures and increased mental health issues, suggesting climate change poses a risk to human well-being. The study suggests that even small increases in temperature can have significant impacts on mental health.

Research shows club drug GHB associated with brain and cognitive changes

Research on GHB users found associations with negative emotions identification, altered brain processes during verbal long-term memory and working memory, lower IQ, and increased stress and anxiety. Brain scans revealed changes in brain activity and connectivity between memory-related pathways.

More exercise may not help all cancer patients to the same extent

A new study found that exercise effects on fatigue, fitness, and quality of life in cancer patients vary depending on their initial health characteristics. Patients with better baseline aerobic fitness experienced greater gains during treatment, while those with worse baseline values benefited more after treatment. The findings suggest...

Half the brain encodes both arm movements

Researchers found that neural activity in both the left and right hemispheres of the brain is involved in encoding individual arm movements. This discovery could lead to the development of more effective rehabilitation strategies for individuals with limb function after a brain injury, by harnessing the unaffected hemisphere.

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.

First genetic risk factor for erectile dysfunction identified

A study by Kaiser Permanente researchers has found a specific place in the human genome associated with an increased risk of erectile dysfunction. Variations in the SIM1 locus were significantly associated with a 26 percent increased risk, independent of known risk factors.

The threat of Centaurs for the Earth

Astrophysicists estimate that Centaurs will have close encounters and impacts with terrestrial planets, potentially producing catastrophic events. The researchers found that half of the Centaurs can enter the terrestrial planet region, and about 7% can interact with them.

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.

Hydraulic fracturing-induced earthquakes

Researchers suggest a hydraulic fracturing well in Alberta, Canada was in contact with an active fault, causing induced seismicity. The coincidence of geological conditions required for induced seismicity are rarely expected to occur naturally, according to the study.

Small-brained female guppies aren't drawn to attractive males

A new study published in Nature Ecology & Evolution found that female Trinidadian guppies can differentiate between attractive and dull males, regardless of brain size. Larger-brained fish showed different patterns of activity in decision-making brain regions when evaluating attractive or unattractive males.

Social media data used to predict retail failure

A new model predicts retail failure with 80% accuracy by analyzing social media and transport data from 10 cities. The model suggests that venues popular around the clock and in diverse neighborhoods tend to succeed longer.

The chromosome responsible for asparagus gender is characterized

A genetic map of garden asparagus has been created, allowing researchers to identify the chromosome that determines the plant's sex. The map is a significant breakthrough in understanding this dioecious species and will enable the development of new varieties with improved characteristics.

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.

A big spark for energy research

The University of Delaware has secured a four-year funding renewal from the U.S. Department of Energy for its Catalysis Center for Energy Innovation, advancing processes for converting biomass into chemicals and fuels. The center has contributed to over 340 publications and trained more than 350 students in sustainable technologies.

UTEP study finds link between childhood adversity, burnout and depression

A UTEP study found that undergraduate nursing students exposed to adverse childhood experiences (ACEs) experience higher levels of burnout and depression. The study supports efforts to better prepare nursing students for the profession by educating faculty on ACEs and providing resources for counseling and support services.

Genetic risk factor of erectile dysfunction

A genome-wide association study has identified a genetic locus near the SIM1 gene as a significant risk factor for erectile dysfunction. The link to this locus is independent of previously known risk factors, suggesting a unique mechanism specific to sexual function.

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.

Largest ever genetic study of blood pressure

A massive genetic analysis of over one million people has revealed 535 new genes linked to high blood pressure. The discovery sheds light on new biological pathways for blood pressure regulation and holds promise for improved cardiovascular disease prevention.

A rack for ammonia

Scientists have developed a metal-organic framework that can take up gaseous ammonia at densities similar to those of liquid ammonia, making it suitable for storage and handling. The framework's unique sorption mode allows for reversible adsorption and desorption of ammonia.

For wineries, competition boosts profits from sustainability

A new study by North Carolina State University reveals that wineries with more sustainable practices experience better financial performance when they feel competitive pressure. Conversely, those without significant competitive pressure are more likely to adopt new sustainability measures.

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.

Long-acting injectable implant shows promise for HIV treatment and prevention

A new long-acting injectable implant developed by UNC School of Medicine researchers has shown promising results in animal models, delivering anti-HIV medication over time with minimal toxicity. The implant can be quickly and safely removed if needed, making it a potential game-changer for HIV treatment and prevention.

Supercomputer predicts optical properties of complex hybrid materials

Researchers at Duke University used a supercomputer to computationally predict the optical properties of layered hybrid organic-inorganic perovskites, opening new material design space for light-based devices. The study successfully matched experimental observations, proving the accuracy of computational models.

Copper ions flow like liquid through crystalline structures

Researchers studied copper-based superionic crystal CuCrSe2, revealing copper ions flow like liquids above a certain temperature. This discovery could lead to the development of more efficient and safer rechargeable batteries by replacing liquid electrolytes with solid superionic materials.

Rice U. pursues end game for diabetes

Rice University researchers are working to develop cell implants that can sense blood glucose levels and produce insulin on demand for Type 1 diabetes patients. The project aims to eliminate the need for patients to monitor their blood glucose and administer insulin shots, potentially leading to a cure for this autoimmune disease.

Fluke 87V Industrial Digital Multimeter

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

You can improve your spatial skills with training

A CU Boulder-led study found that targeted training can improve spatial reasoning skills in young adults, increasing their performance in geoscience classes. After one semester, 70% of trained students showed significant improvement in spatial skills, with many reporting enhanced abilities in other science classes.