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Science News Archive 2013


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.

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.

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.

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.

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.

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.

Apple iPhone 17 Pro

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

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.

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.

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.

Fluke 87V Industrial Digital Multimeter

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

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.

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.

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.

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.

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.

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.

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.

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.

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.

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.

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.

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.

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.

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.

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.

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.

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.

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.

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.

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.

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.

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.

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.

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...

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.

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.

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...

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.

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.

Celestron NexStar 8SE Computerized Telescope

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

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.

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.

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.

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.

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.

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.

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.

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.

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.

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.

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.