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Science News Archive 2013


Page 339 of 352

ARS scientists test improved stink bug trapping methods

Researchers found that baited black pyramid traps are more effective at capturing stink bugs than other traps, with higher yields of adults and nymphs. The study also discovered that stink bugs can produce two generations per year in the Mid-Atlantic region.

Studying ancient Earth's geochemistry

Researchers have discovered that some of the tectonic processes driving volcanic activity were occurring as early as 3.8 billion years ago. The study found compositions comparable to modern oceanic islands in ancient rocks, strengthening arguments for subduction-related tectonics.

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.

When mom is the CEO at home, workplace ambitions take a back seat

A new UC Berkeley study suggests that women's domestic power reduces their desire for career advancement. Women who control household decisions reported lower life goals than those who shared decision-making with their spouses. This effect is specific to women and not observed in men.

Charting new routes for women at work: Looking to the home and classroom

A new study found that women become less interested in pursuing workplace power when they view themselves as being in control of decisions at home. This shift affects career choices without women even realizing it. Additionally, women experience conflict managing their identities as a parent and worker, which is more pronounced than men.

Melt ponds cause the Artic sea ice to melt more rapidly

Researchers have found that melt ponds on young, thin Arctic sea ice absorb 50% more solar radiation, causing the ice to melt faster. This changes the light transmission beneath the ice, affecting photosynthesis and potentially impacting ecosystems.

Window on future ocean change

A long-term mesocosm experiment off Sweden investigates the effects of ocean acidification on plankton communities, shedding light on their ability to adapt to new conditions. The study also explores the impact of ocean acidification on the development of fish at the base of the food web.

Apple iPhone 17 Pro

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

UGA researchers invent new material for warm-white LEDs

The University of Georgia scientists have fabricated the world's first LED that emits a warm white light using a single phosphor with a single emitting center. The new material achieves a warm color temperature while maintaining accurate color rendition, ideal for indoor lighting.

Severity of emphysema predicts mortality

A Norwegian study found that emphysema severity is a strong predictor of all-cause and cardiovascular mortality in ever-smokers with or without COPD. The study also showed that airway wall thickness is associated with respiratory mortality in patients with severe emphysema.

Stroke survivors with PTSD more likely to avoid treatment

A new survey of stroke survivors found that those with post-traumatic stress disorder (PTSD) are less likely to adhere to treatment regimens that reduce the risk of a future stroke. Approximately one in three patients with PTSD had concerns about their medications, leading to increased ambivalence and nonadherence.

Powerful people better at shaking off rebuffs, bonding with others

Researchers at UC Berkeley discovered that those in authority positions are quicker to recover from mild rejection and seek out social bonding opportunities. The study found that subordinates report lower self-esteem when rejected by their bosses compared to supervisors.

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.

Physical and sexual assault linked to increased suicide risk in military

A new study by the University of Utah found that military personnel who experienced physical or sexual assault are at higher risk of suicidal thoughts and actions. In contrast, undergraduate students who experienced unwanted sexual experiences as children or adults face increased risk of suicidal thoughts and ideation.

Reliable electric power supply for the energy turn-around

The Helmholtz Energy Alliance aims to ensure a reliable electric power supply through the development of grid management and storage systems. Key findings include the need for new technologies to manage hybrid transmission grids and innovative methods to ensure grid stability.

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.

Unrestricted access to the details of deadly eruptions

The LaMEVE database offers rapid searchability of information on large volcanic events with a quantitative data quality score. It focuses on magnitude 4 or greater eruptions, which are typically responsible for the most loss of life in historical periods.

Penn physicists help show math behind growth of 'coffee rings'

Researchers found that different particles create smooth or rough deposition profiles at the drop edge depending on their shape. They tested Poisson and KPZ processes, two classes of interfacial growth processes, and discovered elongated particles produced a KPZ class of growth.

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.

Increasing concerns surrounding surrogacy

The UK's rapid increase in surrogate births over the past six years poses a risk of exploitation, particularly in informal arrangements lacking professional back-up. Overseas surrogacy arrangements are also a concern due to potential financial, physical and emotional risks to adults and children involved.

Fluke 87V Industrial Digital Multimeter

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

Cell: Protein folding via charge zippers

Researchers discovered a novel charge zipper principle used by membrane proteins to form functional units, allowing them to be immersed into hydrophobic cell membranes. The mechanism involves the assembly of amino acids with positive or negative charges, forming an uncharged ring that lines the TatA pore.

The cell that isn't

Researchers have developed a new technique to study cell division without a cell membrane, allowing them to uncover physical forces and constraints involved in the process. By using this method, they discovered that squeezing the 'cell' into tighter quarters does not lead to smaller spindles, contradicting previous assumptions.

Academia: A brake on UN development goals

Researchers at the University of Bergen are working on improving interdisciplinary communication and collaboration to address pressing global issues. The project aims to create a coordinated work unit focusing on sustainable development and global health, involving experts from diverse fields.

GI tract bacteria may protect against autoimmune disease

Research shows that normal gut microbes protect against autoimmune diseases in mice, supporting the 'hygiene hypothesis.' Altering gut microbes also affects sex hormones, which regulate immune responses. The study may uncover reasons why females are at greater risk of autoimmune diseases.

Study offers new insights into the mechanics of muscle fatigue

Researchers measured changes in ion concentration resulting from muscle stimulation and found that extracellular potassium is a larger contributor to muscle fatigue than thought. This discovery may have important implications for conditions like hyperkalemic periodic paralysis and channelopathies.

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.

Potential new treatment for gastrointestinal cancers discovered

Researchers have identified a complex of proteins that promotes the growth of some types of colon and gastric cancers, leading to the potential development of new treatments using mTorc1 inhibitors. The discovery is significant as it highlights the role of inflammation in cancer growth, particularly for colon and gastric cancers.

U Alberta researchers move Barkhausen Effect forward

Researchers at the University of Alberta have developed a new technique to analyze the Barkhausen Effect, providing critical information for rapid prototyping of magnetic computational devices. The method measures magnetic jumps in a special 'vortex' pattern and converts it into a probe of magnetic interactions on an atomic scale.

Inadequate food facilities in NC migrant camps could cause illness

Researchers found that cooking and eating facilities in NC migrant camps fail to comply with regulations in a substantial number of camps, posing significant health risks to farmworkers. The study highlights the need for greater enforcement of regulations to protect workers' health and safety.

Cheating to create the perfect simulation

Researchers at Jena University have developed a new theory to simulate the strong atomic nuclear interactions that govern neutron stars. By intelligently modifying nuclear forces and solving the stacking problem of atoms, they have enabled the calculability of these complex systems.

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.

Titan gets a dune 'makeover'

Research using Cassini spacecraft observations reveals that Titan's craters are being filled by exotic sand dunes, suggesting a much older surface. The team compared craters on Titan to those on Ganymede and found that Titan's craters were significantly shallower, indicating erosion from windblown sand.

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.

Drug targets hard-to-reach leukemia stem cells responsible for relapses

A novel cancer drug called sabutoclax appears to selectively target hard-to-reach leukemia stem cells that overexpress pro-survival protein forms. The findings suggest that pan-BCL2 inhibition may be critical for eradicating cancer stem cells in CML, and could also be beneficial for treating solid tumor cancers.

Cancer mortality down 20 percent from 1991 peak

The American Cancer Society's annual report shows a 20% decrease in cancer mortality rates since 1991, with significant drops in lung, colorectal, breast, and prostate cancers. These declines are attributed to reductions in smoking and improvements in early detection and treatment.

Understanding personality for decision-making, longevity, and mental health

A recent study found that extraversion predicts neural activity in the brain's reward evaluation region, which may influence decision-making. Additionally, research suggests that personality traits such as conscientiousness are linked to better health outcomes, including lower obesity and higher life expectancy.

Separating gases using a rigid polymer sieve

A new rigid polymer sieve selectively separates gas molecules based on their sizes, allowing for highly permeable and selective gas separations. This breakthrough could lead to cheaper and more energy-efficient gas separation methods.

Celestron NexStar 8SE Computerized Telescope

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

Sniffing immune cells

Researchers at IST Austria found that immune cells follow gradients of guidance cues, which are bound to the tissue, to navigate through the skin. The cells use a mixed strategy, combining sensing of soluble and insoluble cues, to find their way back to lymphatic vessels.

New study challenges links between day care and behavioral issues

A new study of over 75,000 Norwegian children found little evidence that day care leads to behavioral problems. The research suggests that Norway's parental leave policies and national standards for child care may have contributed to the findings. The study contradicts earlier US studies on the topic.

UA explores promoting teen health via text message

A study of 177 teenagers found that most were open to receiving texts about health, but preferred tone and content over phrases like 'you should' or 'always.' Interactive quizzes, simple recipes, and links to websites were well-received. The study suggests text messaging as a supplement to in-person nutrition education for teens.

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.

Deodorants: Do we really need them?

Research found that over 75% of people with the ABCC11 gene variant don't produce under-arm odour but use deodorant. However, only a quarter of these individuals realize they don't produce odour and don't use deodorant, while three quarters do. The study suggests that socio-cultural norms play a significant role in deodorant usage.

Why wolves are forever wild, but dogs can be tamed

A study by evolutionary biologist Kathryn Lord found that wolf pups and dogs develop their senses at the same time but enter critical periods of socialization at different ages. Wolf pups begin walking and exploring without fear, relying on smell, while dog pups only start to explore after all three senses are functioning.

World's most complex 2-D laser beamsteering array demonstrated

Researchers developed a 2-D optical phased array with 4,096 nanoantennas on a silicon chip, revolutionizing LADAR technology. The breakthrough enables high-resolution beam patterns and has potential applications in biomedical imaging, holographic displays, and ultra-high-data-rate communications.

Vaginal delivery is the safest option for women with pelvic girdle pain

Women with severe pelvic girdle pain during pregnancy should opt for vaginal delivery over caesarean section to avoid increased risk of persistent pain. The study found a significant association between planned or emergency caesarean sections and severe pelvic girdle syndrome six months after delivery.

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.

Soft Lego built in the computer

A team of researchers has developed novel self-assembling materials, known as 'Soft Lego', which can form complex crystal structures with specific properties. These materials have potential applications in photonics and light guides, offering a new approach to the construction of materials at the macroscopic scale.

In minutes a day, low-income families can improve their kids' health

A new study found that low-income children's participation in regular high-quality family mealtimes made a difference in their weight status. Researchers observed 200 family mealtimes and noted the importance of shared meals, mealtime behaviors, and socioeconomic factors on childhood obesity.

Weight loss helps to oust worms

Scientists discovered that weight loss plays a crucial role in fighting off intestinal worms by hijacking their natural feeding pathways. This triggers the immune system to expel the worms more effectively.

Botox beats steroids for painful foot condition, plantar fasciitis

A Mexican study suggests that Botox injections can provide faster relief from plantar fasciitis than steroid treatments, with patients showing significant improvement after six months. The study found that combining botulinum toxin A (Botox) with stretching exercises yielded better results for treating the painful foot condition.

Doubling down on energy efficiency

Spending on utility-funded energy efficiency programs will double by 2025, reaching $9.5 billion, as states in the Midwest and South expand their programs, driven by policies requiring cost-effective energy savings and energy efficiency resource standards.

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.

Feed a cold, starve a fever…. and your worms!

Researchers found that during a nematode-induced inflammation, the immune system increases cholecystokinin levels, reducing leptin production, which drives defense mechanisms against the parasite. The study suggests a novel mechanism for parasite expulsion in intestinal infections.

Drug abuse impairs sexual performance in men even after rehabilitation

A recent study found that drug abuse impairs sexual performance in men, even after years of abstinence. Researchers evaluated four areas of sexual performance and discovered that speedball and cocaine abuse prevailingly affect sexual pleasure, while heroin significantly impairs orgasms.

The neurobiological consequence of predating or grazing

Researchers compared pharyngeal nervous systems of nematode Caenorhabditis elegans and predator/omnivore Pristionchus pacificus, finding large differences in neuronal connections. These differences reflect the fundamental differences in feeding behaviors between the two species.

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.