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Science News Archive July 2013


Page 21 of 31

As ice cover disappears, life in the frigid Antarctic moves fast

Researchers discovered a fast-growing community of glass sponges in the Antarctic, contradicting their long lifespan estimates. The seafloor takeover is driven by climate change-induced ice shelf collapse, potentially benefiting glass sponges as winners in the process.

New hope in the fight against childhood cancer

Researchers have developed two monoclonal antibodies that boost the immune system to fight neuroblastoma, a form of childhood cancer. The study found that 40-60% of tumors treated with the antibodies regressed in laboratory models, leading to long-term survival.

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 Hubble finds a true blue planet

The NASA Hubble Space Telescope has confirmed the presence of a true blue planet, HD 189733b, by detecting changes in light color as it passes behind its star. The observations indicate a deep blue color due to a hazy atmosphere with high clouds containing silicate particles.

Gene therapy using lentivirus promising in 3 youngsters

A new gene therapy approach using a partially inactivated lentivirus has shown significant improvement in three children with Wiskott-Aldrich Syndrome. The therapy corrects the genetic defect in blood cells by introducing a normal WASP gene, reducing the risk of cancer-promoting genes.

Economic crisis lowers birth rates

A new study by Max-Planck-Gesellschaft researchers finds that rising unemployment rates in Europe have led to a decrease in fertility, with young adults being the most affected. The drop in children per woman was strongest for first births, with many postponing family formation.

Study puts troubling traits of H7N9 avian flu virus on display

A new study reveals the H7N9 avian influenza virus can infect and replicate in human cells, suggesting it has pandemic potential. The virus also transmits efficiently in ferrets and other mammalian species, raising concerns about a potential global outbreak.

Apple iPhone 17 Pro

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

The brain's response to sweets may indicate risk for development of alcoholism

A new study found that recent drinking is related to the orbitofrontal-region brain response to an intensely sweet stimulus, which may indicate risk for developing alcoholism. The research used functional magnetic resonance imaging (fMRI) and recruited healthy volunteers to examine brain responses to sweet tastes and drinking patterns.

Oldest use of flowers in grave lining

Archaeologists at the Weizmann Institute of Science have discovered the oldest known use of flowers in grave lining, dating back 11,700 to 13,700 years. The graves were found to contain Judean sage, mint, and figwort plants, which suggest that ancient humans had a positive association with flowers.

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.

New virus discovered in stranded dolphin

Researchers have identified a new virus associated with the death of a short-beaked dolphin in San Diego, belonging to the polyomavirus family. The discovery could help protect dolphins and other animals from disease outbreaks.

Jagged graphene edges can slice into cell membranes

Researchers at Brown University have discovered that graphene's sharp corners and jagged protrusions can pierce cell membranes, potentially disrupting normal function. The findings may help minimize the potential toxicity of graphene, a material with numerous commercial applications.

Toward a safer form of acetaminophen

Researchers have developed two compounds that show promise as safer alternatives to acetaminophen, reducing the risk of liver damage. The new substances have a similar architecture to acetaminophen but are non-toxic to liver cells grown in the laboratory.

Test tube children develop mentally normal

A new research project from Aarhus University found that test-tube children are generally as mentally healthy as naturally conceived children. However, children born to mothers who received hormone stimulation treatment for infertility have a small but increased risk of developing mental disorders such as autism or ADHD.

Meta Quest 3 512GB

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

Researchers perform DNA computation in living cells

Chemists from North Carolina State University have successfully performed a DNA-based logic-gate operation within a human cell. The researchers used a DNA-based Boolean logic gate that was activated only when two specific microRNAs were present in cells, generating an output by releasing a fluorescent molecule.

Wind power does not strongly affect greater prairie chickens, 7-year study finds

A 7-year Kansas State University study found that wind turbines have little effect on greater prairie chicken populations. Female survival rates increased after turbine installation, possibly due to reduced predator presence. Conservation management practices, such as grazing and fire management, had the strongest impact on bird habitats.

IBEX spacecraft images the heliotail, revealing an unexpected structure

The IBEX spacecraft has provided the first complete pictures of the solar system's downwind region, revealing a unique and unexpected structure. The images show two lobes dominating the downwind side of the solar system, which researchers initially thought was the heliotail but is now believed to be separate structures.

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.

Stanford researchers say 'peak oil' concerns should ease

A new study by Stanford University researchers concludes that the demand for oil will reach its peak and decline due to economic growth limitations and increasing use of alternative fuels. Historically, there is a connection between economic growth and oil consumption breaking down, leading to more efficient alternatives.

Typhoid's lethal secret revealed

The study reveals that Salmonella typhi's powerful typhoid toxin is responsible for the devastating symptoms of typhoid fever. The discovery could lead to the development of effective vaccines and therapeutics targeting this toxin, offering hope for saving millions of lives.

Bacteria from Salar de Uyuni in Bolivia conceal bioplastic

Researchers have discovered a bacterium in South America that produces poly-beta-hydroxybutyrate (PHB), a biodegradable compound used in the food, pharmaceutical, and cosmetic industries. The strain, Bacillus megaterium Uyuni S29, produces large amounts of PHB, making it a promising natural substitute for petroleum-based plastics.

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.

Optimizing microbe factories

Researchers aim to improve biosynthetic yield of valuable natural products using metabolically modified bacteria with optimized MEP pathways. The goal is to produce high-quality substances efficiently, reducing labor and costs in the process.

Putting more science into the art of making nanocrystals

Researchers have created a more systematic approach to synthesizing quantum dots, enabling the purification of semiconductor nanocrystals with uniform surface properties. The new method uses gel-permeation chromatography and has been shown to produce quantum dots with improved stability and reactivity.

Cigarette smoke impacts genes linked to health of heart and lungs

A study published in Chemical Research in Toxicology reveals that cigarette smoke affects key genes protecting the heart and lungs, leading to increased risk of heart disease in obese smokers. Cigarette smoke exposure also amplifies this effect in non-smoking obese individuals who inhale second-hand smoke.

Quebec fires continue raging

The Quebec forest fires have caused significant disruptions, with over 10% of Quebecers losing electricity due to power line failures triggered by smoke from the fires. More than 280,000 hectares of forested area have been scorched, with three major forest fires being monitored.

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.

Trees using water more efficiently as atmospheric carbon dioxide rises

Scientists analyzed long-term data from seven sites in the US and found a substantial increase in water-use efficiency in temperate and boreal forests. This adaptation could enhance timber yields and improve water availability, but may also lead to reduced evapotranspiration and increased continental freshwater runoff.

A fundamental problem for brain mapping

Recent research questions the idea of discrete brain areas for specific cognitive functions like mind-wandering and attention reorienting. Instead, studies suggest that brain activation is due to the release of suppression rather than additional task-related processes.

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.

Israel makes dramatic advance in blindness prevention

Israel's unique blend of medical innovation, universal accessibility and patient compliance leads to significant reduction in preventable blindness rates. The country's success in preventing avoidable blindness has emerged as a world leader, making it an attractive model for other nations.

Rare primate species needs habitat help to survive

The drill population has been reduced to critical habitat areas in Cameroon, with only four habitats receiving high scores for sustainable populations. Conservation efforts are now focused on these key areas, including the proposed Ebo National Park.

Malaria in the Americas presents a complex picture

The study reveals high genetic diversity of Plasmodium vivax in the Americas, similar to Asia and Oceania, suggesting multiple introductions. This diversity has important implications for control and eradication efforts.

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.

Efficiency in the forest

A Harvard study found that forests across the globe are becoming more efficient in using water, contrary to expectations. The research team used long-term data from over 20 years of eddy covariance measurements to show that forests are storing more carbon and growing faster due to increased atmospheric carbon dioxide 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.

Emergency physicians use new tool to detect drug-seekers in the ER

Emergency physicians used a new tool to assess drug-seeking behavior in the emergency department with an accuracy rate of 87%, according to a recent study. The use of prescription monitoring programs data helped reduce changes in prescribing plans from over 35% to less than 10%.

Jealousy can drive us to view ourselves more like our rivals

New research suggests that jealousy can prompt people to change how they view themselves relative to competitors for their partners' attention. In studies, participants rated themselves as having personal attributes more like the perceived romantic rival than before.

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.

Heat radiation of small objects: Beyond Planck's equations

Scientists at Vienna University of Technology experimentally confirmed a new theory of heat radiation for ultra-thin optical fibers, showing that smaller objects can't radiate efficiently. This discovery is crucial for nano-devices and aerosol physics.

Sun erupts with a CME toward Earth and Mercury

A powerful coronal mass ejection (CME) from the sun has been directed towards Earth and Mercury, posing a risk to electronic systems and communication signals. The CME's magnetic fields can cause geomagnetic storms, potentially leading to aurora displays.

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.

UK leads the way in race for new temperature definition

Researchers at the UK's National Physical Laboratory have performed the most accurate measurement yet of the Boltzmann constant, which could revolutionize the way we define temperature. The new definition directly links the unit of temperature to the basic physical reality of atomic vibrations.

Scientists decode mystery sequences involved in gene regulation

A team of researchers has created the first-ever compendium of RNA-binding sequences, which will become a valuable resource for researchers studying human genetics. The study reveals similarities between humans and fruit flies in terms of binding sequences, suggesting that many proteins bind to similar sequences across species.

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.