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Science News Archive 2013 - Page 223


Page 223 of 352

NASA sees heavy rainfall as Cyclone Mahasen made landfall

Cyclone Mahasen brought heavy rainfall to southern Bangladesh, with the TRMM satellite capturing areas of intense thunderstorms north of the storm's center. The cyclone is expected to weaken and move across northeastern India due to rugged terrain and strong wind shear.

SourceNASA/Goddard Space Flight Center·DateMay 16, 2013

Vitamin C does not lower uric acid levels in gout patients

New research published in Arthritis & Rheumatism found that vitamin C supplementation had a weak effect on lowering uric acid levels in gout patients. The study suggests that vitamin C may not be a viable therapy for reducing uric acid levels in patients with established gout.

SourceWiley·JournalArthritis & Rheumatism·DateMay 16, 2013
Celestron NexStar 8SE Computerized Telescope

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

A*STAR and Cytos bring Singapore's first influenza vaccine to clinical testing

A*STAR and Cytos have initiated a Phase 1 clinical trial for Singapore's first H1N1 influenza vaccine candidate based on Cytos' proprietary bacteriophage Qbeta virus-like particle (VLP) technology. The vaccine aims to provide an effective means of combating influenza epidemics and pandemics in Singapore and the ASEAN region.

SourceAgency for Science, Technology and Research (A*STAR), Singapore·DateMay 16, 2013

Vicious cycle: Obesity sustained by changes in brain biochemistry

Researchers at Brown University found a link between protein processing and appetite regulation, suggesting that ER stress may play a key role in obesity. Intervening with certain chemicals has the potential to restore normal alpha-MSH production, potentially breaking the cycle of obesity.

SourceBrown University·JournalJournal of Biological Chemistry·DateMay 16, 2013

High-testosterone competitors more likely to choose red

A new study published in Psychological Science found that high-testosterone males are more likely to choose the color red when competing. The research suggests that this association may be related to biological systems and affect how opponents respond. However, actual performance in the competitive task was not influenced by color choice.

SourceAssociation for Psychological Science·JournalPsychological Science·DateMay 16, 2013

Students' diet and physical activity improve with parent communications

College students who communicate more with their parents are more likely to eat fruits and vegetables and engage in physical activity. The study found that 14% more fruits and veggies were consumed, and 50% more physical activity occurred when students spoke with their parents for 30 minutes or more.

SourcePenn State·JournalJournal of Adolescent Health·DateMay 16, 2013
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.

Predicting risky sexual behavior

Researchers surveyed over 800 participants to identify variables that predict high-risk sexual behavior. The cultural factor proved most reliable in predicting high-risk sexual behavior, with gender stereotyping, sexual fantasy, and pornography usage playing significant roles.

SourceInternational Communication Association·DateMay 16, 2013

Endothelium, heal thyself

The endothelium, a cellular layer lining blood vessels, has an efficient barrier function maintained by its ability to heal micro-wounds. New research shows that biomechanical signals trigger the recovery response, generating reactive oxygen species to close gaps and restore functionality.

SourceBeth Israel Deaconess Medical Center·JournalJournal of Cell Biology·DateMay 16, 2013

Can math models of gaming strategies be used to detect terrorism networks?

Researchers have developed a mathematical model that uses game theory to disrupt the flow of information in terrorist networks. The model, inspired by a two-player outdoor game called Seepage, can identify the most effective points for disrupting messages in hierarchical social networks.

SourceSociety for Industrial and Applied Mathematics·JournalSIAM Journal on Discrete Mathematics·DateMay 16, 2013
Apple iPhone 17 Pro

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

DNA-guided assembly yields novel ribbon-like nanostructures

Researchers at Brookhaven National Laboratory have discovered a new mechanism of self-assembly using DNA 'linker' strands, forming ladder-like ribbons with unique properties. This approach could lead to the fabrication of nanoscale materials with desired properties, such as plasmonic or fluorescent responses.

SourceDOE/Brookhaven National Laboratory·JournalACS Nano·DateMay 16, 2013

Stem-cell-based strategy boosts immune system in mice

UCSF researchers have created the first functioning human thymus tissue from embryonic stem cells, fostering healthy immune responses and preventing autoimmune reactions in mice. The achievement marks a significant step toward potential new treatments for type-1 diabetes and other autoimmune diseases.

SourceUniversity of California - San Francisco·JournalCell Stem Cell·DateMay 16, 2013
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.

Add boron for better batteries

Researchers at Rice University found that adding boron to graphene improves its ability to store lithium ions, resulting in a capacity two times larger than graphite. The discovery also enables the material to hold a proper voltage, making it suitable for commercial use.

SourceRice University·JournalThe Journal of Physical Chemistry Letters·DateMay 16, 2013

Art of Science exhibit celebrates the 'unpredictability of beauty'

The Princeton University Art of Science 2013 exhibit features top three awards in a juried competition and People's Choice images. The gallery includes structural diagrams resembling flowers, close-up photographs, and worm images, sparking debate among artists about the nature of art.

SourcePrinceton University, Engineering School·DateMay 16, 2013
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.

Who's your daddy?

In a study on reed warblers, scientists found that males aggressively defend against potential infidelity but turn out to be caring fathers. The results suggest that females' perceived male weakness may reduce their investment in joint offspring.

SourceUniversity of Veterinary Medicine -- Vienna·JournalPLOS ONE·DateMay 16, 2013

Most scientists agree: Humans are causing climate change

A team of scientists and citizen-scientists analyzed 12,000 peer-reviewed papers on climate change, finding that over 97% of authors support human-caused climate change. The study aims to raise public awareness of the scientific consensus on climate change.

SourceMichigan Technological University·JournalEnvironmental Research Letters·DateMay 16, 2013

Actor Johnny Depp immortalized in ancient fossil find

A 505 million-year-old fossil, Kooteninchela deppi, discovered in British Columbia, is a distant ancestor of lobsters and scorpions. Its 'scissor hand-like' claws were named after Johnny Depp's starring role in Edward Scissorhands.

SourceImperial College London·JournalJournal of Paleontology·DateMay 16, 2013
Sky-Watcher EQ6-R Pro Equatorial Mount

Sky-Watcher EQ6-R Pro Equatorial Mount provides precise tracking capacity for deep-sky imaging rigs during long astrophotography sessions.

Global health policy fails to address burden of disease on men

A new analysis by University College London highlights the significant burden of disease on men worldwide. Men die at a younger age than women in every region and are disproportionately affected by risk factors such as tobacco smoking, high blood pressure, and physical inactivity.

SourceUniversity College London·JournalThe Lancet·DateMay 16, 2013

Body mass index of low income African-Americans linked to proximity of fast food restaurants

Researchers found that living closer to a fast food restaurant was associated with a higher body mass index (BMI) among low-income African-American adults. The study controlled for factors such as household income, physical activity, and sedentary behaviors to determine the relationship between fast food density and BMI.

SourceUniversity of Texas M. D. Anderson Cancer Center·JournalAmerican Journal of Public Health·DateMay 16, 2013

Bach to the blues, our emotions match music to colors

A study from the University of California, Berkeley suggests that humans share a common emotional palette when it comes to music and color. Participants consistently paired bright colors with upbeat music and dark colors with subdued music across different cultures.

SourceUniversity of California - Berkeley·JournalProceedings of the National Academy of Sciences·DateMay 16, 2013
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.

NASA satellite data helps pinpoint glaciers' role in sea level rise

A new study using NASA satellite data found that glaciers outside of Greenland and Antarctica lost an average of 571 trillion pounds of mass every year, contributing to a 0.03-inch-per-year rise in sea levels. This is equal to about 30% of the total observed global sea level rise during the same period.

SourceNASA/Goddard Space Flight Center·JournalScience·DateMay 16, 2013

Breakthrough for IVF?

Researchers have developed a method to identify embryos with chromosomal abnormalities using time-lapse imaging and morphokinetic analysis, avoiding invasive biopsies. This approach has shown significant improvements in implantation and live birth rates when low-risk embryos are transferred.

SourceElsevier·JournalReproductive BioMedicine Online·DateMay 16, 2013

Health transitions in Pakistan

A comprehensive assessment of Pakistan's health systems reveals significant shortcomings in financing, accountability, and training. Key findings include below-average performance in life expectancy, child mortality rates, and improved sanitation, with opportunities for reform under the provincial devolution of health mandate.

SourceThe Lancet_DELETED·JournalThe Lancet·DateMay 16, 2013
Garmin GPSMAP 67i with inReach

Garmin GPSMAP 67i with inReach provides rugged GNSS navigation, satellite messaging, and SOS for backcountry geology and climate field teams.

Natural 'keystone molecules' punch over their weight in ecosystems

Researchers propose keystone molecules as a key factor in structuring ecosystems. These molecules have powerful effects on bacteria, seabirds, fishes, and other species. Keystone molecules also influence predator-prey relationships and can be crucial for conservation efforts.

SourceAmerican Institute of Biological Sciences·JournalBioScience·DateMay 16, 2013

Nanotechnology could help fight diabetes

Researchers developed an injectable nanogel that can monitor blood-sugar levels and secrete insulin in response, offering a potential solution to Type 1 diabetes. The system consists of nanoparticles with enzyme-loaded dextran spheres that release insulin when glucose levels are high.

SourceMassachusetts Institute of Technology·JournalACS Nano·DateMay 16, 2013

LDL cholesterol is a poor marker of heart health in patients with kidney disease

A study published in the Journal of the American Society of Nephrology found that LDL cholesterol is not a reliable indicator of heart disease risk in patients with kidney disease. Patients with very low kidney function were more likely to have a heart attack, regardless of their LDL levels.

SourceAmerican Society of Nephrology·JournalJournal of the American Society of Nephrology·DateMay 16, 2013

European Society of Human Genetics urges caution over use of new genetic sequencing techniques

The European Society of Human Genetics urges caution on using new genetic sequencing techniques due to potential risks and benefits. The society recommends targeted analysis to limit unsolicited findings, ensuring patients' rights are protected while also providing them with necessary health information.

SourceEuropean Society of Human Genetics·JournalEuropean Journal of Human Genetics·DateMay 16, 2013
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.

70's-era physics prediction finally confirmed

Researchers have directly observed Hofstadter's Butterfly, a complex pattern of energy states resembling a butterfly, in graphene. The phenomenon confirms decades-long theoretical predictions and may lead to the discovery of new electrical properties.

SourceCity College of New York·JournalNature·DateMay 16, 2013

Artificial forest for solar water-splitting

Scientists have developed an artificial forest of semiconductor light absorbers, interfacial layers, and co-catalysts to mimic natural photosynthesis. The system achieved a 0.12-percent solar-to-fuel conversion efficiency, but further improvements are needed for commercial use.

SourceDOE/Lawrence Berkeley National Laboratory·JournalNano Letters·DateMay 16, 2013

Change in cycle track policy needed to boost ridership, public health

A new study from Harvard School of Public Health recommends overhauling US bicycle engineering guidelines to reflect current cyclists' preferences and safety data. The study suggests endorsing cycle tracks, physically separated paths adjacent to sidewalks, to encourage more people of all ages to ride bicycles.

SourceHarvard T.H. Chan School of Public Health·JournalAmerican Journal of Public Health·DateMay 16, 2013

Ethicists provide framework supporting new recommendations on reporting incidental findings in gene sequencing

A group of experts developed a framework for reporting incidental findings in clinical exome and genome sequencing, following the American College of Medical Genetics and Genomics recommendations. The framework justifies reporting clinically beneficial incidental findings as ethically compatible with respect for patient autonomy.

SourceBaylor College of Medicine·JournalScience·DateMay 16, 2013

New insights into how materials transfer heat could lead to improved electronics

University of Toronto researchers have developed a new tool to measure the thermal and vibrational properties of solids, which could lead to more efficient electronic devices. The tool allows for a clearer picture of how an electronic device's ability to dissipate heat shrinks with its size.

SourceUniversity of Toronto Faculty of Applied Science & Engineering·JournalNature Communications·DateMay 16, 2013
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.

How should geophysics contribute to disaster planning?

The article highlights the importance of geophysics in disaster planning, emphasizing the need for interdisciplinary collaboration to address natural hazards. Brian McAdoo's presentation compares death counts and economic fallout from similar magnitude earthquakes in areas with different levels of economic development, showing that dea...

SourceAmerican Institute of Physics·DateMay 16, 2013

Weather on the outer planets only goes so deep

A team of scientists has determined that the atmospheric layer on Uranus and Neptune extends only about 1000 km in depth, a significant finding that challenges current understanding of these planets' weather systems. This discovery was made possible by analyzing gravitational field data using novel methods.

SourceWeizmann Institute of Science·JournalNature·DateMay 16, 2013
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.

Study: Brain makes call on which ear is used for cell phone

A study published in JAMA Otolaryngology-Head & Neck Surgery reveals a strong correlation between brain dominance and the ear used for cell phone conversations, with left-brain dominant individuals more likely to use their right ear. The study's findings have implications for language center mapping and may suggest a lower risk of tumo...

SourceHenry Ford Health·DateMay 16, 2013

Beautiful 'flowers' self-assemble in a beaker

At Harvard University, scientists have developed a method to assemble intricate nanostructures into delicate flower-like structures. By manipulating chemical gradients, researchers can control the growth behavior of these crystals to create precisely tailored structures, mimicking nature's own self-assembly processes.

SourceHarvard University·JournalScience·DateMay 16, 2013

Paleontology: The eloquence of the otoliths

Researchers from LMU Munich uncovered well-preserved fish fossils, shedding light on the gobioid order's evolution and classification. The discovery of perfectly preserved otoliths allowed for a genetic code-like analysis, placing a new species in the Butidae family.

SourceLudwig-Maximilians-Universität München·JournalPLOS ONE·DateMay 16, 2013
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.

Gene involved in neurodegeneration keeps clock running

Scientists identify Gene Ataxin-2 as a key component of the circadian clock, which regulates sleep-wake cycles. The study found that Ataxin-2 helps activate translation of PER protein, keeping the clock on a 24-hour rhythm.

SourceNorthwestern University·JournalScience·DateMay 16, 2013

Expert questions US public health agency advice on influenza vaccines

A Johns Hopkins fellow argues that the US public health agency's message on influenza vaccines may be overstated, with limited evidence supporting the claim that vaccines save lives. He also questions the effectiveness of vaccines in reducing elderly deaths and highlights potential side effects.

SourceBMJ Group·JournalThe BMJ·DateMay 16, 2013

Moth-inspired nanostructures take the color out of thin films

Researchers developed nanostructures that suppress 'thin-film interference', a phenomenon causing light loss in multiple-layered thin films. These nanostructures reduce reflection by up to 100 times, potentially increasing the efficiency of thin-film solar cells.

SourceNorth Carolina State University·JournalNanotechnology·DateMay 16, 2013

Nature: X-ray tomography on a living frog embryo

Researchers used X-ray diffraction to image soft tissues in living frog embryos, resolving individual cells and analyzing single-cell migration. The technique provides new insights into embryonic development and its underlying molecular biology.

SourceHelmholtz Association·JournalNature·DateMay 16, 2013
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.

Massachusetts' health care reform didn't raise hospital use, costs

A study found that Massachusetts' healthcare reform in 2006 led to a 3.6% increase in average quarterly hospital admissions, similar to neighboring states without reform. The total days of inpatient care increased by 0.94%, and hospital charges per quarter rose by 1.1% more than in comparison states.

SourceAmerican Heart Association·DateMay 16, 2013

Work-related stress linked to increased blood fat levels

Researchers found that job stress is associated with an altered lipid profile, leading to higher rates of 'bad' cholesterol and lower levels of 'good' cholesterol. This can increase the risk of cardiovascular disease. The study analyzed data from over 90,000 workers and found a significant link between job stress and dyslipidemia.

SourceSpanish Foundation for Science and Technology·JournalScandinavian Journal of Public Health·DateMay 16, 2013

World's smallest droplets

Researchers at Vanderbilt University have created the world's smallest liquid droplets in a lab experiment. The tiny droplets, about one-100,000th the size of a virus, exhibit flow-like behavior similar to quark-gluon plasma, a state of matter thought to have existed in the universe during its early stages.

SourceVanderbilt University·JournalPhysics Letters B·DateMay 16, 2013

Herpes infections: Natural killer cells activate hematopoiesis

Researchers found a link between natural killer cells and hematopoiesis in CMV-infected mice, revealing an antiviral reaction that could lead to new treatments for viral infections. This process involves the elimination of infected cells and mobilization of immune cells to combat the pathogen.

SourceLudwig-Maximilians-Universität München·JournalCell Host & Microbe·DateMay 16, 2013
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.

Scientists capture first direct proof of Hofstadter butterfly effect

A team of researchers has observed a rare quantum physics effect that produces a repeating butterfly-shaped energy spectrum in a magnetic field, confirming the prediction of the quantum fractal energy structure called Hofstadter's butterfly. The discovery paves the way for engineering new types of nanoscale materials.

SourceUniversity of Central Florida·JournalNature·DateMay 16, 2013

Research into carbon storage in Arctic tundra reveals unexpected insight into ecosystem resiliency

A recent study published in Nature found that the Arctic tundra's carbon storage has remained relatively stable despite two decades of slow and steady warming. The researchers attributed this unexpected resilience to increased plant growth and changing soil conditions, which facilitated stabilizing feedbacks to offset soil carbon loss.

SourceUniversity of California - Santa Barbara·JournalNature·DateMay 16, 2013