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Science News Archive 2015


Page 181 of 402

Long-sought discovery fills in missing details of cell 'switchboard'

A new study has provided never-before-seen details of the human body's cellular switchboard that regulates sensory and hormonal responses. The research, led by Eric Xu at the Van Andel Research Institute, used SLAC's X-ray laser to complete the first 3-D atomic-scale map of a key signaling protein called arrestin.

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.

Boosting gas mileage by turning engine heat into electricity

Scientists have developed a new material that can capture and convert waste heat from engines into electrical energy, potentially improving fuel efficiency and reducing greenhouse gas emissions. This innovative technology could also have applications in aerospace and manufacturing sectors.

Research with dolphins provides hope for prevention of diabetes in humans

A new study discovered that bottlenose dolphins can reverse prediabetes by switching between diabetic and non-diabetic states, with the key driver being a saturated fat called heptadecanoic acid. Dolphins fed fish high in this fatty acid showed significant improvements in metabolic syndrome indicators within six months.

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.

Hair ice mystery solved

A team of scientists in Germany and Switzerland have identified the fungus Exidiopsis effusa as the cause of hair ice. The researchers found that the fungus enables the ice to form thin hairs, which are stabilized by a recrystallisation inhibitor provided by the fungus.

Schools with higher black, minority populations call cops, not docs

Research reveals that schools with more black and minority students tend to prioritize punishment over medical or psychological interventions, leading to higher rates of expulsions, suspensions, and referrals to law enforcement. This trend is linked to centralized governance and zero-tolerance policies in disadvantaged districts.

Readiness of America's biology teachers questioned

A longitudinal study of high school biology instructors reveals that biology dominates STEM education and the workforce increased 50% between 1987 and 2007. However, the same trend also shows that teachers outside their discipline are often assigned to teach outside their capabilities.

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.

New smart drug targets and reduces site-specific inflammation

Researchers have developed a dynamic 'smart' drug that targets inflammation in a site-specific manner, reducing side effects. The new anti-inflammatory molecule reduces local inflammation while avoiding normal inflammatory processes, potentially improving treatment outcomes for immunosuppressed patients and those undergoing chemotherapy.

NOAA's GOES-S sensor gets clean bill of health from hospital

The Energetic Heavy Ion Sensor (EHIS) has been given a clean bill of health after being tested using a proton accelerator at Massachusetts General Hospital. This sensor will measure heavy charged particles in Earth's magnetosphere and aid in space weather alerts.

Poor survival in multiple myeloma patients linked to genetic variation

A recent study published in Nature Communications found that genetic variation in the gene FOPNL is associated with poorer survival rates in multiple myeloma patients. The study, which included over 1,600 patients from North America and Europe, identified a significant link between the FOPNL variant and reduced survival.

Apple iPhone 17 Pro

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

Static synapses on a moving structure: Mind the gap!

Neurons have developed ways to regulate their electrical activity, preventing overexcitability and non-functional neurons. A new study reveals that unique synapses along the axon initial segment (AIS) modulate neuronal output by acting directly on the AIS.

Teeth reveal lifetime exposures to metals, toxins

Researchers found that teeth can provide a chronological record of exposure to chemicals, including iron, from fetal development. This technology can help track the impact of pollution on health globally and potentially link early life exposures to neurodegenerative diseases like Parkinson's and Alzheimer's.

New material forges the way for 'stem cell factories'

Researchers at the University of Nottingham have created a fully synthetic substrate to grow billions of human pluripotent stem cells. This breakthrough could lead to the creation of 'stem cell factories' for clinical use in treating heart, liver and brain conditions.

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.

Climate change reduces coral reefs' ability to protect coasts

Coral reefs are under pressure from climate change, which may reduce their ability to protect tropical islands against wave attack and erosion. The study suggests that coasts fronted by relatively narrow reefs with steep faces and deeper reef flats will experience the highest wave runup and greatest potential for island flooding.

Zebrafish reveal drugs that may improve bone marrow transplant

Researchers at Boston Children's Hospital have identified epoxyeicosatrienoic acids (EETs) that enhance stem cell engraftment in zebrafish and mice. These compounds could improve bone marrow transplants by allowing the use of more umbilical cord blood units, increasing patient chances of finding a matched donor.

NASA's RapidScat identifies Typhoon Halola's strongest side

Typhoon Halola's strongest typhoon-force winds were located on the northern half of the storm, stretching from northwest to northeast. The storm intensified and peaked at 95 knots on July 24, with Joint Typhoon Warning Center forecasts predicting weakening after that.

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.

New analysis points the way to earlier diagnosis of chest tumors

Researchers developed new diagnostic criteria to differentiate between malignant and benign mediastinal masses in children. The criteria use symptoms, laboratory tests, and CT scans to identify a better way to refine diagnoses, potentially leading to earlier detection of cancers like lymphomas and neuroblastomas.

Resolving social conflict is key to survival of bacterial communities

In bacterial communities, resolving social conflict is key to survival. The discovery reveals that biofilms develop an 'emergent phenomenon' where individuals balance opposing needs through metabolic codependence. This strategy allows bacteria to coordinate activities, resolve internal conflicts and ensure the survival of the community.

Women's sexual risk-taking focus of new study

A new survey of over 850 US women found that relaxing beach vacations are perfect for sexual experimentation with a steady partner, while group tours and sightseeing trips are ideal for casual sex with acquaintances or strangers. Women tend to underestimate risks in non-penetrative activities and overestimate condom protection.

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.

What makes kids aggressive later in life?

Researchers study children's aggressive behavior from ages 3-5, exploring factors such as empathy, emotional regulation and social information processing. The three-year study aims to provide new insights into what drives children towards aggressive behaviors.

Cold crystallization has a dual nature

Researchers at the Henryk Niewodniczanski Institute of Nuclear Physics found that cold crystallization in liquid crystals occurs through two mechanisms: classical thermodynamics and diffusion. The study reveals a wide range of temperatures where cold crystallization can occur, contrary to previous expectations.

Kiwi genomes explain the unusual characteristics of an endangered bird

The kiwi bird's genomic changes help explain its unique characteristics, such as eliminated color vision and a highly developed sense of smell. Research identified evolutionary changes in the genome that underpin the bird's adaptations to nocturnality, with potential implications for conservation efforts.

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.

Space-eye-view could help stop global wildlife decline

Scientists are calling for cooperation between conservationists and space agencies to monitor biodiversity loss, which has halved in just 40 years. Satellite images can reveal changes in vegetation productivity and provide information on ground-level biodiversity levels.

Testing for malaria reduces overprescription by more than 70 percent

A study published in PLOS ONE found that introducing rapid diagnostic tests in registered drug shops in Uganda reduced overdiagnosis of malaria by 73%, improving the use of valuable malaria drugs. The introduction of these tests improved treatment with artemisinin-based combination therapies, increasing appropriate treatment by 36%.

Diagnostic test developed for enterovirus D68

A new diagnostic test has been developed to quickly detect enterovirus D68, a respiratory virus that caused unusually severe illness in children last year. The test is more effective than previous methods and can be completed in just a few hours, reducing the time needed to detect the virus.

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.

Mowing dry detention basins makes mosquito problems worse, team finds

Researchers found that mowing down cattails and phragmites in stormwater basins leads to a boom in mosquito populations and an increased risk of West Nile virus transmission. Mowing also disperses bird species, which are natural reservoir hosts for the virus, contrary to initial expectations.

Smarter window materials can control light and energy

Researchers at the University of Texas at Austin have developed smart window materials that can control light and energy efficiency, allowing for precise indoor climate control. The new materials enable 90% NIR and 80% visible light blocking, reducing energy costs for cooling buildings and homes.

Benefits of strip-till surface after five-year study

Researchers found that strip-till farming increased soil organic matter content by 8.6% after five years compared to no-till methods. This resulted in reduced bulk density and penetration resistance, creating a more favorable environment for crop growth.

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.

Modified DNA building blocks are cancer's Achilles heel

Researchers discovered that cancer cells incorporate chemically modified nucleosides into their DNA, which is toxic to them. The study found that modifying these nucleosides could be used as a specific anti-cancer agent, exploiting epigenetic changes in cancer cells.

Banned chemical pollutant lowers fertility in UK porpoises

A study led by the Zoological Society of London found that harbour porpoises in European waters are struggling with reproductive failures, with almost 20% of females experiencing stillbirth or foetal death. PCB concentrations in UK porpoises were moderate despite being banned over 30 years ago.

Job services lacking for young people with autism

A new study reveals that young people with autism are struggling to find and keep jobs, with only 47% securing employment after receiving vocational services. Experts emphasize the importance of vocational counseling, guidance, and coordination between high schools and rehabilitation systems to support this growing population.

Celestron NexStar 8SE Computerized Telescope

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

Researchers find Massachusetts schools are improving food options

Researchers found that Massachusetts school food regulations led to significant improvements in competitive foods and beverages, with middle school compliance rising from 13% to 69% and high school compliance increasing from 28% to 80%. The study suggests that states can successfully implement similar standards nationwide.

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.

Predicting the shape of river deltas

Researchers from MIT and WHOI have developed a simple way to predict a river delta's shape, influenced by its river's sediment flux and ocean waves' strength. The new metric can help engineers determine how engineered structures like dams and levees may affect the coastline of a river delta.

Preserving photoreceptor cells following retinal injury

Researchers at Mass Eye and Ear discovered that the alternative complement pathway exacerbates photoreceptor cell death after injury, but blocking it can protect photoreceptors. Inhibition of this pathway offers a new therapeutic target to prevent initial photoreceptor loss.

Using low-dose irradiation, researchers can now edit human genes

Researchers at Cedars-Sinai Medical Center have developed a new gene-editing technique involving low-dose irradiation, which is 10 times more effective than existing methods. This breakthrough could enable scientists to model human diseases more accurately and accelerate the discovery process.

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.

Novel scissor-like bridge structure for use during emergencies

The Mobile Bridge Version 4.0's viability was tested on a real river, showcasing its practical use with minimal personnel and no foundation work required. The bridge's scissor-like structure allows for efficient expansion and contraction while maintaining strength.

Kiwi bird genome sequenced

The kiwi genome sequencing reveals several genes involved in colour vision are inactivated, while the diversity of odorant receptors is higher than in other birds, indicating a reliance on their sense of smell for foraging. Genetic changes occurred about 35 million years ago, reflecting the kiwi's adaptation to its nocturnal lifestyle.

E-cigarettes may be as addictive as traditional ones

Researchers found that e-cig liquids contain primarily free-base nicotine, the most addictive form, and often do not match label concentrations. This suggests that e-cigarettes can be just as hazardous to health as traditional tobacco products.

Fluke 87V Industrial Digital Multimeter

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

Crushing snakes kill by blood constriction, not suffocation

A recent study published in The Journal of Experimental Biology found that boa constrictors rapidly shut down the circulation of their victims. The snakes cut off the blood supply to vital organs, causing cardiac arrest and death within seconds. This discovery sheds new light on the mechanisms of snake constriction.

ALMA witnesses assembly of galaxies in the early universe for the first time

A team of astronomers using ALMA has detected the faint glow of ionised carbon in a galaxy just over 800 million years after the Big Bang. This finding reveals new details about the assembly of galaxies in the early universe and provides valuable information on the interstellar medium and star formation processes.