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Science News Archive August 2014


Page 20 of 31

IUPUI chemist to receive $600,000 early career development award from NSF

Haibo Ge, a chemist at IUPUI, has received a $600,000 NSF award to support his research on efficient methods for preparing organic molecules with potential impact on medicinal and agricultural chemistries. The grant also supports the development of an interdisciplinary course linking organic and medicinal chemistry.

From eons to seconds, proteins exploit the same forces

Rice University theorists show that energy landscapes dominate both evolution and folding of proteins. The team used computer models to compare the folding of natural proteins from eons to seconds, revealing a common connection between evolution and physics.

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.

Flexible tapes from the nanoworld

Researchers at Technical University of Munich successfully assembled chains of up to 90 porphine units using a silver surface, opening doors for the development of ordered long molecular structures. These 'tapes' have potential applications in electronic devices and data storage.

Can our computers continue to get smaller and more powerful?

Researchers examine limitations in manufacturing, engineering, power, time, and computational complexity to determine achievable advancements. Emerging technologies like carbon nanotubes may overcome traditional limits, but fundamental constraints still pose significant obstacles.

Smoke from Russian fires over Arctic Sea

Numerous wildfires have impacted Russia's landscape this summer, producing smoke that has drifted to the Arctic Sea. The smoke contains a mixture of particles and chemicals produced by incomplete burning of carbon-containing materials.

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.

Foreshock series controls earthquake rupture

A long-lasting foreshock series in northern Chile controlled the rupture process of a magnitude 8.1 earthquake, which occurred in a region where the two colliding tectonic plates were partly locked. The study suggests that the unbroken regions north and south may break in separate smaller earthquakes.

Dolphins and whales experience pleasure

Researchers found that dolphins and beluga whales exhibit a delay between reward anticipation and squealing, suggesting they experience pleasure. This behavior is comparable to the timing of dopamine release in humans.

New research offers hope for HIV vaccine development

Scientists have discovered novel properties of special HIV antibodies that can neutralize multiple strains of HIV. The study found that these 'broadly neutralizing antibodies' are more prevalent in HIV-infected individuals than previously thought, suggesting a possible vaccine strategy to elicit them.

Mind and body: Scientists identify immune system link to mental illness

Research suggests that high levels of inflammatory markers in childhood may increase the risk of developing depression and psychosis in adulthood. The study found that individuals with elevated IL-6 levels were nearly two times more likely to experience depression or psychosis than those with low levels.

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.

Antarctica could raise sea level faster than previously thought

A new study suggests Antarctica's ice sheet could become the largest contributor to global sea level rise earlier than thought. The analysis indicates a range of potential increases of 1-37 centimeters in this century, significantly higher than previous IPCC projections. This could have devastating impacts on coastal cities and communi...

MRSA colonization common in groin and rectal areas

A recent study published in Infection Control and Hospital Epidemiology found that community-associated MRSA can colonize the groin and rectal areas, with men being more frequently colonized than women. This discovery has important implications for MRSA surveillance programs nationwide.

New test reveals purity of graphene

Researchers have developed a simple method to detect contaminants on atom-thin graphene using terahertz spectroscopy. The technique involves placing the graphene on a layer of indium phosphide, which emits terahertz waves when excited by a laser pulse, allowing for non-contact detection and mapping of changes in electrical conductivity.

Researchers uncover clues about how the most important TB drug attacks its target

Scientists at Johns Hopkins Bloomberg School of Public Health have discovered a new clue to understanding how the most important medication for tuberculosis works. The antibiotic Pyrazinamide cuts off the energy production of Mycobacterium tuberculosis, killing the bacteria by disrupting PanD, an enzyme crucial to synthesis of co-enzym...

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.

Rooting out skin creams that contain toxic mercury

A new technique can quickly screen products for mercury content, helping to identify those at risk of serious health problems. The method uses total reflection x-ray fluorescence and has been shown to be just as accurate as existing techniques.

Vanderbilt-led study shows high-dose flu vaccine more effective in elderly

A Vanderbilt-led study published in the New England Journal of Medicine found that the high-dose flu vaccine is 24% more effective than the standard-dose vaccine in protecting persons ages 65 and over against influenza illness. The study, which enrolled 31,989 participants, showed that the high-dose trivalent vaccine induces significan...

Why aren't campus emergency alerts taken more seriously?

New research examines how users perceive campus emergency alerts, finding that personality traits such as neuroticism and agreeableness affect attitudes towards the system. The study suggests differentiating between serious and nonserious threats to maintain public trust and safety.

York survey highlights ocean research priorities

A survey of scientists from 94 countries reveals the top research priorities for sustaining ocean health, including climate change's impact on plankton growth and ocean biodiversity. Social scientists highlight the need to better communicate science to policy-makers and the public as a key priority.

Apple iPhone 17 Pro

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

Are patients being discharged from hospice care to save money?

A study examining Medicare hospice discharges found that nearly 1 in 5 patients were discharged alive, sparking concerns about cost-saving measures. The researchers also discovered significant variation in live discharge rates across states and individual hospices.

Tattoo biobatteries produce power from sweat (video)

Scientists create a temporary tattoo sensor that detects and responds to lactate in sweat, producing an electrical current. The device continuously monitors sweat lactate levels over time and with changes in exercise intensity, enabling the creation of sweat-powered biobatteries.

Sniffing out billions in US currency smuggled across the border to Mexico

A new portable device using gas chromatography/mass spectrometry can detect the specific vapors emitted by US currency, potentially helping border guards identify and seize billions of dollars in smuggled cash. The system, called BCDS, is being developed to improve detection and has been shown to work effectively within seconds.

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.

Stinky gases emanating from landfills could transform into clean energy

Scientists have created a new technique to transform methane-emitting landfill gas into hydrogen, which can be used in fuel cells to generate clean electricity. The breakthrough involves using a highly stable catalyst material that prevents carbon deposition, allowing for more efficient production of hydrogen.

Scared of crime? Good

A Michigan State University study suggests that adolescents who are more fearful of crime are less likely to become victims and offenders of violent acts. The research found that fearful youth tend to avoid potentially dangerous situations, leading to safer outcomes.

Mouth bacteria can change its diet, supercomputers reveal

Researchers using supercomputers at TACC analyzed bacterial communities for gum disease, diabetes, and Crohn's disease. They found that these microbes adjust their metabolism in response to disease, suggesting new ways to prevent or reverse the conditions.

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.

Geckos use toe hairs to turn stickiness on/off

Researchers discovered that geckos can turn their toe hairs' stickiness on and off, allowing for speed and energy-efficient climbing. This mechanism is crucial for geckos' survival and enables potential applications in synthetic dry-adhesives for extreme environments.

Notre Dame paper offers insights into a new class of semiconducting materials

Researchers at the University of Notre Dame have discovered a new class of hybrid perovskites with exceptional performance in solid-state thin film solar cells. The materials demonstrate high light-to-electricity conversion efficiencies approaching 20% and are easy to process using coating and printing techniques.

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.

NASA sees the end of Tropical Depression Genevieve

Tropical Depression Genevieve dissipated in the Northwestern Pacific Ocean after a two-week journey through three Pacific regions. Maximum sustained winds dropped to 25 knots as the storm moved northwest at 8 knots.

WSU researcher sees survival story in Antarctic fly's small genome

The Antarctic midge's genome is the smallest sequenced so far, with only 99 million base pairs. This compact genome may hold clues to the insect's incredible ability to survive in extreme conditions. Researchers are now eager to explore whether other sub-Antarctic organisms have similar genomes.

Roadside research from the pinelands and coast to coast

Researchers found that mowing and prescribed burns increased plant density and flowering percentage of gentian species, a rare find due to human suppression of wildfires. Northern pine snakes struggle to cross roads, with only small patches of habitat left to support populations.

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.

Graphene-based planar micro-supercapacitors for on-chip energy storage

Graphene-based planar micro-supercapacitors provide a promising solution for on-chip energy storage with high power density and fast charging capabilities. The devices can deliver a superior cycling lifetime of millions of cycles, making them suitable for applications that require high power over a short timeframe.

Loss of eastern hemlock affects peak flows after extreme storm events

A new study by US Forest Service scientists found that eastern hemlock loss due to the hemlock woolly adelgid insect has no significant effect on short-term stream flow, but increases peak flows after extreme storm events. The loss of foundation species in forested riparian zones could amplify climate change impacts.

Hand sanitizers in classrooms do not reduce school absences in children

A cluster randomized trial found that installing alcohol-based hand sanitizer dispensers in classrooms did not reduce the rate of school absences in children. The provision of hand sanitizers also did not affect the number of absences due to specific illnesses or the length of illness and absence from school.

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.

Fires in northern Washington state

Four major wildfires are burning in northern Washington, including Upper Falls, Little Bridge Creek, Lone Mountain, and Duncan fires, all started by lightning strikes, with dry conditions and red flag warnings in place.

Contrary to popular belief, more exercise is not always better

A new study published in Mayo Clinic Proceedings found that heart attack survivors who exercise excessively are at a higher risk of cardiovascular deaths. Researchers recommend exercising within a moderate range to reap long-term health benefits, with daily doses not exceeding 60 minutes and 5 hours of vigorous exercise per week.

'Trojan horse' treatment could beat brain tumors

Scientists have successfully tested a new treatment for aggressive brain cancer, using tiny gold nanoparticles to kill tumour cells. The treatment combines chemotherapy with radiotherapy, targeting cancer cells directly and enhancing the impact of conventional treatments.

Celestron NexStar 8SE Computerized Telescope

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

Overhaul of our understanding of why autism potentially occurs

Researchers developed a new model explaining how autism occurs, with genetically-controlled brain plasticity mechanisms potentially determining autistic capabilities and subtypes. The 'Trigger-Threshold-Target' model suggests focusing on developing children's unique strengths rather than solely correcting behaviors.

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.

NASA sees a weaker Tropical Storm Julio far north of Hawaii

Tropical Storm Julio is weakening as it moves through cooler Central Pacific Ocean waters, with most clouds and precipitation pushed north of the center. The storm is expected to gradually turn north before turning into a depression by August 14, according to NOAA's CPHC.

Approach used to conduct meta-analyses may affect outcomes

A study found that different meta-analysis approaches can yield varying treatment outcome estimates, with some methods producing larger results. The researchers recommend assessing the robustness of their results through sensitivity analyses and comparing to other strategies.

Is empathy in humans and apes actually different?

Researchers directly compared human and bonobo yawn contagion, finding that strong relationships matter more than species for empathic responses. Humans respond more frequently to friends and kin, while bonobos do so equally, challenging the assumption that humans are more empathetic.