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Science News Archive 2015


Page 203 of 402

Long-term memories are maintained by prion-like proteins

Research by Eric Kandel's lab shows prion-like proteins, like those causing mad cow disease, are critical for maintaining long-term memories in mice. These proteins work by creating aggregated structures that turn on protein synthesis necessary to maintain the memory.

International consortium to study plant fertility evolution

An international consortium is developing a comprehensive understanding of fertilization in flowering plants using comparative genomics and molecular biology techniques. The research aims to provide insights into the origins of fertilization and its role in improving crop productivity.

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.

Melanoma mutation rewires cell metabolism

Researchers discovered that a melanoma mutation activates ketogenesis enzyme HMG-CoA lyase, turning on fat breakdown in cancer cells. This rewiring of metabolism may explain why V600E mutation is common in melanomas and provide alternative strategies to existing drugs targeting the mutation.

Oregon experiments open window on landscape formation

A team of researchers led by UO doctoral student Kristin E. Sweeney conducted a series of experiments in small sandboxes to witness the formation of ridges and valleys in real-time. The study provides new insights into the competition between erosion driven by runoff and soil movement on hillsides, revealing how climate change may impa...

Nanospiked bacteria are the brightest hard X-ray emitters

Researchers at Tata Institute of Fundamental Research created bacteria to emit intense hard x-ray radiation. By using nanostructured bacterial cells and silver nanoparticles, they achieved a 10,000-fold increase in x-ray emission compared to plain glass slides.

Will climate change put mussels off the menu?

Rising sea temperatures and decreased salt concentration are predicted to significantly impact mussel health, favoring disease-causing bacteria that produce toxins. This could threaten the rapidly-growing tropical shellfish industry in South-West India, which is already under pressure from urbanization.

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.

Do you really think you're a foodie?

A nationwide survey of 502 women found that adventurous eaters rated themselves as healthier eaters and were more physically active. They also reported being more likely to have friends over for dinner and were less concerned with the healthfulness of their food.

Online reader comments can provide valuable feedback to news sites

Researchers found that readers value different journalistic traits and hold expectations for journalists beyond traditional values. Readers often criticize news outlets using human adjectives like 'sanctimonious' and 'lazy'. News leaders should understand how readers anthropomorphize their organizations to better present their brands.

Traders' hormones' may destabilize financial markets

A study suggests that cortisol and testosterone levels in traders can lead to increased risk-taking behavior, potentially destabilizing financial markets. Researchers found that artificially increasing hormone levels shifted investment towards riskier assets.

New guidelines recommend brain stents to fight strokes in certain patients

The American Heart Association/American Stroke Association recommends the use of brain stent retrievers in certain patients undergoing acute ischemic strokes. The devices can restore blood flow and reduce stroke damage when treated promptly, making them a valuable option for carefully selected patients.

Apple iPhone 17 Pro

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

Launch of first European nanomedicine characterization lab

The European Nanomedicine Characterization Laboratory (EU-NCL) aims to bring safe and efficient nanotherapeutics faster to patients. EU-NCL partners with international reference facilities to harmonize analytical protocols, providing a trans-disciplinary testing infrastructure for preclinical characterization.

Why the seahorse's tail is square

A team of researchers found that a seahorse's square, overlapping tail segments provide better armor and gripping abilities compared to traditional cylindrical tails. The squared shape absorbs more energy before permanent failure begins and creates more contact points with surfaces.

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.

Can autism be measured in a sniff?

Researchers discovered that children with autism spectrum disorder exhibit a unique sniffing pattern when exposed to pleasant or unpleasant odors, allowing for accurate classification with high accuracy. The study suggests that olfactory tests could be used as an early indicator of ASD, potentially leading to more effective intervention.

Vanderbilt research could lead to vaccines and treatment for dengue virus

Researchers have determined the structure of a human monoclonal antibody that strongly neutralizes a type of the potentially lethal dengue virus in an animal model. This finding could lead to effective therapies and vaccines against dengue, a complex of four distinct mosquito-borne viruses causing illness and death in the tropics.

ASHG issues position statement on genetic testing in children and adolescents

The American Society of Human Genetics has issued a position statement on the ethical, legal, and psychosocial implications of genetic testing in children and adolescents. The statement addresses various issues related to genetic testing, including predictive testing, whole-genome sequencing, and implementation challenges.

CalDigit TS4 Thunderbolt 4 Dock

CalDigit TS4 Thunderbolt 4 Dock simplifies serious desks with 18 ports for high-speed storage, monitors, and instruments across Mac and PC setups.

Two new studies on the connection between hypertension and cognitive decline

New studies reveal that hypertensive individuals experience higher rates of cognitive decline compared to non-hypertensive populations. Additionally, African Americans with hypertension bear a disproportionate burden of disability and mortality associated with the condition. These findings underscore the importance of effective managem...

Research reveals how the human brain might reconstruct past events

Researchers at University College London have discovered that when we try to remember a single aspect of an event, our brain reconstructs the entire episode, including details we weren't consciously aware of. This process is made possible by the hippocampus, which associates different aspects of the event and enables pattern completion.

Commonly prescribed drugs affect decisions to harm oneself and others

Healthy people given citalopram were willing to pay more to prevent harm to themselves or others than those on placebo drugs, highlighting the serotonin-enhancing antidepressant's effect on moral decision-making. In contrast, levodopa made healthy people more selfish and less altruistic.

Patient access to cardiovascular devices delayed by bureaucracy

The introduction of innovative techniques and devices has led to declining death rates from cardiovascular disease, but reimbursement systems are hindering their adoption. Delays in allocating reimbursement codes are limiting investment in future device therapies.

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.

Boys more likely to have antipsychotics prescribed, regardless of age

A recent NIH-funded study found that approximately 1.5% of boys aged 10-18 received an antipsychotic prescription in 2010, with attention deficit hyperactivity disorder (ADHD) being the most common diagnosis among youth ages 1-18. The study also highlighted a significant increase in antipsychotic use with age, beginning at 0.11% for ch...

Could your smartphone one day tell you you're pregnant?

Researchers developed a smartphone sensor using surface plasmon resonance to detect biomolecules, including those for pregnancy testing and diabetes monitoring. The sensor is tiny, affordable, and comparable in sensitivity to current equipment.

UH Health leader inducted into National Optometry Hall of Fame

Earl L. Smith III, OD, was inducted into the National Optometry Hall of Fame for his long-lasting impact on the optometric profession through his academic and administrative work at UH College of Optometry. He has made significant contributions to vision science research and education.

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.

Research letter: Indoor tanning rates drop among US adults

Indoor tanning rates declined significantly among US adults from 2010 to 2013, with notable decreases in younger age groups and certain health conditions. The decrease is attributed to increased awareness of indoor tanning's harms, including its link to cancer risk.

Single-celled predator evolves tiny, human-like 'eye'

A single-celled marine plankton has evolved a tiny eye-like structure that resembles the complex eyes of humans and other animals. The ocellloid contains sub-cellular organelles similar to those found in multicellular eyes, potentially aiding prey detection through light shift detection.

Income-tax earnings data give more accurate picture of value of college degree

A new study using Social Security Administration's personal income tax data confirms the value of college education by measuring individual lifetime earnings over 20 years. The study estimates significant long-term economic benefits of college education, with men earning an average of $840,000 more over 50 years than high school gradua...

Improving insulation materials, down to wetting crossed fibers

Researchers study the behavior of liquids trapped between two parallel fibers, discovering that spreading is controlled by three key parameters: liquid amount, fiber orientation, and distance between them. This insight could lead to cheaper materials with better insulation properties.

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.

Europe, Siberia and in between: Caucasian populations of non-biting midges

Researchers found interesting morphological distinctions in the mouthparts of larvae and new chromosome rearrangements in the second chromosome of <i> Ch. bernensis</i>. The study suggests a possible adaptive explanation for the geographical distribution of the species, with different genotypic combinations dominating at various sites.

Why human egg cells don't age well

Researchers at RIKEN Center for Developmental Biology found that as egg cells mature in older women, paired chromosomes separate prematurely, leading to early division and incorrect segregation. This results in age-related chromosomal errors, such as Down syndrome and miscarriages.

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.

Fine tuning in the brain

Researchers developed a computer model to simulate the biological processes of neural network development in the visual cortex. The results show that newborns possess specialized nerve cells but lack systematic connections, which are refined through experience, leading to improved perception.

Producing spin-entangled electrons

Researchers have produced pairs of spin-entangled electrons, demonstrating their ability to remain entangled even when separated on a chip. This achievement could contribute to the development of futuristic quantum networks operating using quantum teleportation.

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.

Brain activity predicts promiscuity and problem drinking

A new study suggests that brain activity can predict how likely young adults are to develop problem drinking or engage in risky sexual behavior. The research found that imbalance in the function of typically complementary brain areas, such as the ventral striatum and amygdala, is associated with increased risk.

The BMJ's data sharing policy now applies to all clinical trials

The BMJ has introduced a new policy requiring data sharing for all clinical trials, building on initial policies for drug and device trials. This move aims to promote transparency and reproducibility in research, as encouraged by initiatives from the US Institute of Medicine and World Health Organization.

Ultra-stable JILA microscopy technique tracks tiny objects for hours

Researchers have developed a microscope instrument that can accurately measure the 3D movement of individual molecules over many hours, far beyond current limits. This technology has potential applications in biology, biochemistry, and biophysics, including tracking protein motions and characterizing nanoscale objects.

Baby seals that practice in pools make better divers

Grey seal pups who practice in pools have improved breathing patterns and longer breath-holding periods during their transition to sea life. Researchers believe this may be due to stimulation of facial nerves causing a drop in heart rate, helping them conserve oxygen.

Meta Quest 3 512GB

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

Wayne State to lead Detroit site in new national heart failure study

A new national study will develop guidelines for patients released from the emergency room after treatment for suspected acute heart failure symptoms. The Wayne State University School of Medicine and Detroit Receiving Hospital will serve as a site for the three-year project, funded by the Patient-Centered Outcomes Research Institute.

Human brain may contain a map for social navigation

Researchers found a correlation between hippocampal activity and movement through abstract social space, suggesting a common mechanism for coding physical space, time, and social relationships. The study's findings may yield new insights into psychiatric disorders like schizophrenia and depression.

Clues to inner atomic life from subtle light-emission shifts

Researchers measured variations in energy transition within cadmium atom isotopes, identifying physical cause of shift within nucleus. Two main factors influence hyperfine structure: magnetic field from electrons and nuclear electric quadrupole moment.

Seeing is believing

Researcher Richard Born's team at Harvard Medical School has discovered key principles about how the brain makes sense of visual information. They found that individual neurons are tuned to detect specific motions and relative depth, with a direct bottom-up contribution to these signals.

Fluke 87V Industrial Digital Multimeter

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

Improved survival in adult patients with low-grade brain tumors

Researchers found improved median survival of patients with low-grade gliomas increasing from 44 months to 57 months between 1999 and 2010. The study suggests more effective chemotherapies contribute to the increased survival, despite a decrease in radiation therapy use.

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.

Study: Targeted LEDs could provide efficient lighting for plants grown in space

A Purdue University study reveals that targeting plants with red and blue LEDs offers an energy-efficient solution for growing crops in space. The research found that leaf lettuce thrived under a 95-to-5 ratio of red and blue light-emitting diodes, using about 90% less electrical power per growing area than traditional lighting.

Temperature reproduces good and bad effects in mammals

Researchers found that cooler temperatures increase milk output in lactating females, while also slowing the growth of their young due to increased energy expenditure. In contrast, warmer temperatures limit milk production in mothers while benefiting the growth of their pups.

We're not alone -- but the universe may be less crowded than we think

A new study led by Michigan State University suggests there may be fewer galaxies further out in the universe than previously expected. The research used simulations to examine galaxy formation in the early universe and found that the number of faint galaxies could be as low as ten times larger than initially thought.