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Science News Archive August 2015


Page 13 of 32

Piece of protein may hold key to how the mammalian brain evolved

A single molecular event in cells may hold the key to how mammals evolved intelligent brains. Alternative splicing (AS) enables cells to create more than one protein from a single gene, and researchers found that PTBP1 plays a crucial role in regulating AS events that lead to neuron development.

Harvard's Wyss Institute improves its sepsis therapeutic device

The Wyss Institute has developed an improved blood-cleansing device that can treat sepsis by removing pathogens and toxins from the bloodstream. The new device uses a genetically engineered pathogen-capturing protein to bind all types of live and dead infectious microbes, including bacteria, fungi, viruses, and toxins.

Apple iPhone 17 Pro

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

Home births save money, are safe, UBC study finds

A recent UBC study found that planned home births attended by registered midwives in BC between 2001-2004 saved an average of $2,338 compared to hospital births. The study also showed lower health costs for babies born at home, with first-year health costs being $810 less than those for hospital births.

Searching for ingredients of dark matter and dark energy

Researchers from the XENON Collaboration report on a search for dark matter using an underground detector in Italy. The results set limits on several types of dark matter candidates and provide new insights into the nature of dark energy.

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.

Study provides hope for some human stem cell therapies

Researchers discovered that human induced pluripotent stem cells can be differentiated into retinal pigment epithelial cells without immune rejection. This finding provides hope for the development of human stem cell therapies to treat macular degeneration, a condition affecting 30-50 million people globally.

PET imaging detects fast-growing prostate cancer

Researchers developed a molecular imaging biomarker that detects fast-growing primary prostate cancer and distinguishes it from benign prostate lesions. The new PSMA-based PET imaging technique was more specific than MR imaging for detecting clinically significant high-grade prostate cancer lesions.

Long distance travelers likely contributing to antibiotic resistance's spread

Researchers discovered a significant increase in antibiotic resistance genes among Swedish exchange students returning from India and central Africa. The study highlights the role of human gut microbiomes in dispersing resistant bacteria, emphasizing the need for societal-level interventions to reduce further spread.

iPS cells discover drug target for muscle disease

Researchers have designed a model that reprograms fibroblasts to study Duchenne muscular dystrophy development using induced pluripotent stem cells. The study reveals that calcium ion channels may cause muscle degeneration in DMD patients, providing a clear drug target for treatment.

Without humans, the whole world could look like Serengeti

A new study by Aarhus University researchers presents a world map of mammals without human impact, revealing diverse wildlife in northern Europe, North and South America, and Africa. The study provides insights into natural biodiversity patterns and factors influencing species distribution.

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.

Life in 3-D

Researchers at EMBL and Stanford University mapped three-dimensional interactions between enhancers and promoters, revealing new insights into gene regulation. The study sheds light on how genetic variants control gene expression and disease predispositions.

Multiple strains of C. difficile cause severe patient outcomes

A multicenter observational cohort study found that no single genetic strain of C. difficile appears to be more harmful than others, contradicting previous research on Ribotype 027. The study's findings highlight the importance of clinical severity markers in predicting severe patient outcomes.

How newts can help osteoarthritis patients

Scientists at the University of York have developed a technique to rejuvenate human cells from older people with osteoarthritis, allowing them to repair worn or damaged cartilage and reduce pain. The researchers recreated similar conditions in the laboratory by growing human cells as 3D aggregates, enabling them to generate new tissues.

Manchester team reveal new, stable 2-D materials

Manchester University researchers have developed a method to stabilize previously unstable 2D crystals, allowing for the study of their properties and potential applications. The breakthrough enables the isolation of these materials in thin stacks, enabling control over their properties and opening up new possibilities for industry.

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.

Warming climate is deepening California drought

A new study finds that global warming is deepening California's drought by driving moisture from plants and soil into the air. The research estimates that up to a quarter of the drought can be attributed to rising temperatures.

Architecture of aquifers: Chile's Atacama Desert

Researchers examine the Loa River system and its impact on water scarcity, highlighting the need for sustainable long-term management. The study identifies areas where deeply buried aquifers exchange water with shallow ones or discharge to surface water systems.

A detector shines in search for dark matter

The XENON100 detector achieved high sensitivity, challenging traditional dark matter models. The team recorded faint annual modulation signals in the data, raising questions about the nature of dark matter.

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.

The unique ecology of human predators

A study published in Science reveals that humans exploit adult fish populations at 14 times the rate of marine predators and hunt large land carnivores nine times faster than their wild counterparts. This unprecedented level of predation highlights humanity's role as a 'super predator' driving widespread wildlife extinctions.

'Substantial' number of NHS hospital staff treat victims of human trafficking

A substantial proportion of NHS hospital staff, including those in maternity services, encounter patients who have been trafficked, according to research published in BMJ Open. The study found that staff across various specialties lack knowledge on how best to respond to victims and feel inadequately prepared to provide appropriate care.

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.

Don't I know that guy?

Johns Hopkins University researchers identified the hippocampus region responsible for distinguishing between familiar and new memories. This finding validates theories about memory processing and may help explain memory impairments in diseases like Alzheimer's, potentially preserving people's memories as they age.

Leave the family behind: Solo travelers are not who you think

A QUT study found that solo travelers prioritize freedom, meeting new people, and self-discovery over having a companion. Despite challenges like extra costs and safety concerns, the positives outweigh the negatives, making solo travel an increasingly popular option.

'Quantum dot' technology may help light the future

The new technology uses a continuous flow chemical reactor and microwave heating to produce nanoparticles that emit light with precise color control. This could lead to improved LED lighting systems with reduced waste and toxicity, cutting the nation's lighting bill in half.

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.

Research reveals link between age and opinions about video games

A study of 109 clinicians found that older participants are more likely to believe playing video games leads to violent behavior, highlighting a generational effect. The researchers suggest that parents can help bridge this gap by engaging with their children and trying out the games themselves.

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.

Home-based treatment is cost-effective alternative for heart patients

A recent study published in the International Journal of Cardiology found that home-based treatment (HBI) for chronic heart failure patients was more cost-effective than traditional clinic-based intervention. The study showed that HBI resulted in longer patient survival, reduced hospital stay duration, and lower healthcare costs

The Lancet: Working long hours linked to higher risk of stroke

Working 55+ hours per week is associated with a 33% increased risk of stroke and a 13% increased risk of coronary heart disease. Longer working hours are linked to increased stress, physical inactivity, and high alcohol consumption, which may increase the risk of stroke.

New estimates show China's carbon emissions were less than previously thought

New research has substantially reduced China's estimated carbon emissions from the past decade, suggesting that international agencies had overestimated its cumulative emissions by as much as 2.9 gigatons. The revised estimates were made possible by a more accurate understanding of fuel quality and emission factors.

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.

Educational expansion created more marriages by same educational level, race

A University of Kansas researcher's study found that compulsory schooling laws in Northern US states led to more people marrying those with the same education level and race, potentially contributing to economic inequality. The study suggests that regional differences in economic development may have influenced this outcome.

Earliest baboon found at Malapa

A fossil monkey specimen representing the earliest baboon ever found has been discovered in South Africa, dated between 2-2.36 million years ago. The partial skull confirms earlier suggestions that the fossil baboon species is closely related to modern baboons and may be the earliest known members of the Papio hamadryas species.

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.

Honey bees rapidly evolve to overcome new disease

A research team led by Alexander Mikheyev found a population of wild bees in Ithaca, New York, that has retained its strength despite the presence of Varroa destructor mites since the mid-1990s. The bees have developed genetic resistance to the disease.

Activity trackers not as accurate for some activities, ISU study finds

A study by Iowa State University found that activity trackers are less accurate when measuring strength training, with some monitors overestimating calories burned. The BodyMedia Core was the most accurate tracker, while the Misfit Shine was the least, with error rates of 15.3% and 30.4%, respectively.

Synthetic DNA vaccine against MERS induces immunity in animal study

A new synthetic DNA vaccine has been developed to induce protective immunity against the Middle East Respiratory Syndrome (MERS) coronavirus in animals. The vaccine, administered six weeks prior to exposure, was found to fully protect rhesus macaques from disease and generate potentially protective antibodies in camels.

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.

Queen's researcher finds new model of gas giant planet formation

Dr. Martin Duncan's new model proposes that gas giants like Jupiter and Saturn formed through the accumulation of small 'pebbles', allowing cores to form rapidly enough to capture their atmosphere. The successful model predicts the formation of one to four gas giant planets, consistent with the observed outer solar system configuration.

Instant oatmeal for breakfast may help curb your appetite at lunch

A study published in the Journal of the American College of Nutrition found that eating instant oatmeal for breakfast significantly reduced food intake at lunch. The researchers attributed this effect to the higher molecular viscosity of beta-glucan in instant oatmeal, which enhanced satiety and feelings of fullness.

The pronoun I is becoming obsolete

Recent studies have shown that thinking of plants and animals as autonomous individuals is a serious over-simplification. Microbiologists propose the concept of holobionts, which consists of visible hosts plus millions of invisible microbes that significantly affect development, diseases, behavior, and social interactions.

World should heed lessons from Hurricane Katrina, economist says

Economist Edward Barbier calls for international cooperation to protect the world's most at-risk nations from hurricane damage and long-term climate change impacts. He advocates for coastal protection plans, economic diversification, and restoration of natural barriers to safeguard vulnerable populations.

Celestron NexStar 8SE Computerized Telescope

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

Clamshell-shaped protein puts the 'jump' in 'jumping genes'

Scientists at Johns Hopkins Medicine deciphered the structure and unusual shape of bacterial protein IstB, which prepares segments of DNA for jumping genes. The clamshell shape bends DNA into a 180-degree U-turn, priming it for transposon insertion.