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Science News Archive 2015


Page 47 of 402

Research points to why some colorectal cancers recur after treatment

A study at MD Anderson Cancer Center reveals that increased methylation of epidermal growth factor receptors (EGFR) leads to resistance to cetuximab antibody therapy, resulting in poorer clinical outcomes and higher recurrence rates. The study also found that expression of methylation-defective EGFR reduces tumor growth in mice.

Valley current control shows way to ultra-low-power devices

Scientists at the University of Tokyo have created an electrically-controllable valley current device that may pave the way to ultra-low-power computing devices. The device uses pure valley current, which is non-dissipative and does not produce heat, making it a promising alternative to traditional electronics.

Apple iPhone 17 Pro

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

'Tuning in' to a fast and optimized internet

Researchers have designed a tunable filter that can be integrated onto a photonic chip, enabling flexible optical networks. The device has a record-breaking tuning span of 670 GHz, making it suitable for handling large data volumes and adapting to dynamic changes.

Forged in the hearts of stars

A team from ASU and UNC aims to resolve uncertainties in the nuclear fusion process that creates elements forged by stars. They will investigate the range of elements produced by a star, including calcium and carbon, to determine their variation in output.

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.

Arrested development

A University of Alberta study found that homeless people who felt disrespected during police interactions retained negative attitudes towards police for at least two years. The study suggests teaching empathic listening and communication skills to police can improve interactions with the homeless population.

Adverse trends in mental health linked to disability assessments

A UK study found that each additional 10,000 people reassessed using the Work Capability Assessment was associated with an increase in suicides, self-reported mental health problems, and antidepressant prescribing rates. The most deprived areas experienced the greatest increases in these adverse outcomes, widening health inequalities.

New tech helps handlers monitor health, well-being of guide dogs

Researchers at NC State University have developed a device that monitors a guide dog's breathing and heart rate, sharing the information with its handler to detect stress or anxiety. The technology aims to prevent early retirement of guide dogs by providing real-time health insights.

Fluke 87V Industrial Digital Multimeter

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

Marijuana dependence influenced by genes, childhood sexual abuse

Researchers identified a genetic variant in the endocannabinoid system that may protect individuals from marijuana dependence after experiencing childhood sexual abuse. The study found that a specific allele of the monoacylglycerol lipase gene, known as rs604300, was associated with an increased risk of cannabis dependence symptoms.

Rice makes light-driven nanosubmarine

The researchers built single-molecule submersibles powered by ultraviolet light, achieving speeds of less than 1 inch per second but exceeding expectations for molecular motion. The study shows an enhancement in diffusion of 26 percent, outperforming Brownian motion.

Use rectal thermometer for accurate assessment of body temperature

A systematic evidence review and meta-analysis found that peripheral thermometers have poor clinical accuracy and sensitivity compared to central thermometers. Central thermometers, such as rectal or bladder thermometers, are considered the gold standard for accurate temperature measurement.

Davis Instruments Vantage Pro2 Weather Station

Davis Instruments Vantage Pro2 Weather Station offers research-grade local weather data for networked stations, campuses, and community observatories.

Alzheimer's research: New findings

Researchers discovered that the protein APP forms spherical structures in the nucleus, affecting gene activity and neurotransmitter modulation. This finding may lead to new therapies for Alzheimer's disease by inhibiting neurotransmitter activity.

How to eliminate pain tied to tooth decay

Researchers at USC discover enzyme MMP-20 that can regrow tooth enamel, reducing lesions by up to 70%. The breakthrough could lead to a new treatment option for tooth decay and sensitivity.

Overweight men just as likely as overweight women to face discrimination

A new study by Rice University and the University of North Carolina, Charlotte found that overweight men experience subtle yet statistically significant interpersonal discrimination in employment settings. This bias can impact their chances of getting hired or being treated fairly as customers.

Studies show China continues to lag in effective tobacco control

Research by the University of Waterloo's ITC Project reveals China's slow progress in implementing strong FCTC policies, leading to high levels of second-hand smoke exposure and ongoing tobacco use threats. The country lags behind other countries in protecting its people against second-hand smoke.

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 'supergene' underlies genetic differences sexual behaviour in male ruff

Researchers have discovered a 'supergene' underlying genetic differences in sexual behaviour among male ruffs, with Satellite and Faeder males carrying a chromosomal inversion that has been maintained for about 4 million years. The study found an association between the 'supergene', testosterone levels, and altered behaviour.

SF State research reveals how climate influences sediment size

San Francisco State University researchers developed a new method to analyze river rocks, revealing the impact of climate on sediment size. The study found that larger sediment sizes are produced on steeper, colder mountains, controlling canyon formation.

Meta Quest 3 512GB

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

Study ranks 6 American cities on preparation for climate change

A study ranks six American cities on their preparedness for climate change, with Portland ranking number one. The research found that the political culture of a city plays a significant role in its ability to prepare for extreme weather events linked to climate change.

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.

Researchers discover sediment size matters in high-elevation erosion rates

Researchers found that cold, steep slopes produce coarser sediment than gentle slopes, suggesting variations in climate, topography, and weathering rates shape mountain landscapes. This discovery quantifies the relationship between sediment size and erosion rates, providing new insights into the interplay of climate and tectonics.

Empathy is key to political persuasion, shows new research

Researchers found that arguments based on a political opponent's moral principles have a better chance of success in winning them over. The study suggests using purity-based arguments can help bridge gaps between liberals and conservatives, increasing support for universal healthcare and same-sex marriage.

Bird decline shows that climate change is more than just hot air

A new study reveals that climate change is driving bird declines in the Western Cape, with factors such as changing fire and rainfall patterns playing a significant role. The research found striking similarities between bird population declines and increases in average temperature, highlighting the need for urgent conservation action.

Half the world's natural history specimens may have the wrong name

A new study reveals that up to half of the world's natural history specimens may have incorrect names, which can hinder biologists' work in fields like evolution and conservation. The researchers suggest that digitalised specimens and DNA sequencing can improve naming accuracy when integrated with taxonomic projects.

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.

New study on patterns of electronic cigarette use among adults in the US

A recent US study found that some adult smokers who quit within the last year used e-cigarettes as a quitting aid. The study analyzed data from the 2014 National Health Interview Survey and found that nearly half of daily cigarette smokers have ever tried e-cigarettes. Daily e-cigarette use was more common among adults over age 25 than...

Gene therapy: A promising candidate for cystic fibrosis treatment

Researchers have made encouraging results using gene therapy to treat cystic fibrosis by inserting a healthy copy of the CFTR gene into affected cells. The approach restored chloride and fluid transport in both mouse models and human-derived cell cultures, suggesting a potential cure for the genetic disorder.

Microbes that are key indicators of Puget Sound's health in decline

The diversity and number of foraminifera in Bellingham Bay and Bremerton areas have deteriorated significantly, despite a reduction in chemical pollutants. Researchers are investigating alternative environmental factors, including high acidity caused by decomposition of organic matter and industrial contaminants.

Safe spaces play important role in community-based HIV prevention, research finds

A new study from Oregon State University researcher Jonathan Garcia finds that safe spaces serve as surrogate homes, creating an environment with social support and reducing vulnerabilities like exposure to violence and lack of employment opportunities. The spaces help men feel secure, increasing their openness to HIV testing and treat...

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.

Nearsightedness progression in children slowed down by medicated eye drops

Researchers found that low-dose atropine eye drops significantly slowed myopia progression in children, with a 50% reduction compared to untreated children. The medication is safe for use in children age 6-12 for up to five years and may be an effective treatment in the fight against global nearsightedness.

UW team refrigerates liquids with a laser for the first time

The University of Washington team has made history by cooling water by about 36 degrees Fahrenheit using an infrared laser. This breakthrough technology has the potential to revolutionize various industries, including manufacturing, telecommunications, and defense.

Allen Institute researchers decode patterns that make our brains human

Researchers identified a conserved set of gene expression patterns common to all individuals, providing key insights into the core genetic code that makes our brains human. These patterns include those associated with diseases like autism and Alzheimer's, offering new opportunities for therapeutic targeting.

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.

Bats use weighty wings to land upside down

Researchers discovered that bats' weighty wings enable a unique landing technique by utilizing inertial forces. By reorienting their bodies through wing mass and inertia, bats can land feet-first and quickly adjust for forward flight.

RNA-based drugs give more control over gene editing

Scientists have created RNA-based drugs that can temporarily activate and inactivate the CRISPR/Cas9 gene editing system, providing more precise control over gene expression. This breakthrough enables researchers to correct and inactivate genes with increased efficiency and potential selectivity.

Study is first to map Earth's hidden groundwater

Scientists estimate nearly 23 million cubic kilometres of total groundwater, with most modern groundwater found in tropical and mountain regions. The study highlights the need to manage this precious resource sustainably due to increasing demand and climate change.

Gene drive reversibility introduces new layer of biosafety

Researchers at Harvard University have demonstrated effective safeguarding mechanisms for gene drives and unveiled a method for reversing the changes they spread. This breakthrough enables the safe management of disease-transmitting organisms and paves the way for potential use in pest control and disease prevention.

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.

A new target for immuno-oncology therapies

Researchers at IRCM identified the mechanism of action for a new target in immune-oncology treatments, focusing on natural killer cells and DNAM-1 protein. The discovery could lead to improved therapies using antibodies against TIGIT receptor.

Brushing up peptides boosts their potential as drugs

Researchers at the University of California, San Diego, have developed a simple way to send peptides into cells and tissues. The new method uses a densely packed brush to protect peptides from digestion and enhance their ability to enter cells without altering their biological function.

High yield crops a step closer in light of photosynthesis discovery

Researchers at University of Edinburgh discover key components in algae that enable efficient photosynthesis, leading to potential breeding of high-yield crops. By understanding and replicating these mechanisms, scientists aim to create more productive varieties of wheat, rice, and barley.

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.

Kids with Medicaid, CHIP get more preventive care than those with private insurance

According to a study published in JAMA Pediatrics, children with Medicaid and the Children's Health Insurance Program (CHIP) were more likely to receive preventive medical and dental care compared to those with private insurance. The study analyzed data from over 80,000 children and found that 88% of Medicaid- and CHIP-covered kids had...

Mysteries of bony fish genome evolution

Researchers propose a two-phase model describing gene loss patterns after whole genome duplication in teleost fishes, the largest group of bony fishes. Approximately 80% of duplicate genes were lost within the first 60 million years, with slower gene loss occurring in subsequent phases.

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.