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Science News Archive August 2013


Page 24 of 29

Study identifies factors associated with suicide risk among military personnel

A study of current and former military personnel found that mental disorders and male sex are independently associated with increased suicide risk, but deployment or combat experiences were not linked to an increased risk. The findings suggest that early recognition and treatment of mental health concerns can help mitigate suicide risk.

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.

NREL report firms up land-use requirements of solar

A new NREL report provides detailed land-use data for solar power plants, showing that a large fixed tilt photovoltaic plant requires an average of 2.8 acres for solar panels to generate 1 gigawatt-hour per year. The study found that small single-axis PV systems require on average 2.9 acres per annual gigawatt-hour, while concentrating...

Personality may affect a new mother's decision to breastfeed

A study of 602 new mothers found that extroverted and emotionally stable individuals are more likely to breastfeed and continue breastfeeding. Mothers who were introverted or anxious faced challenges with breastfeeding, including feelings of self-consciousness and difficulty accessing support services.

Size matters in nanocrystals' ability to adsorb/release gases

Researchers at Vanderbilt University developed a new method to measure nanocrystals' adsorption and release of hydrogen and other gases. The technique revealed that the size of nanocrystals has a stronger effect on the rate of gas adsorption and release than previously expected, with smaller particles absorbing more gas faster.

Anker Laptop Power Bank 25,000mAh (Triple 100W USB-C)

Anker Laptop Power Bank 25,000mAh (Triple 100W USB-C) keeps Macs, tablets, and meters powered during extended observing runs and remote surveys.

What color is your night light? It may affect your mood

A study published in The Journal of Neuroscience found that hamsters exposed to red light had significantly less evidence of depressive-like symptoms compared to those exposed to blue or white light. The researchers believe this may have important implications for humans, particularly those working night shifts.

Apple iPhone 17 Pro

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

Commonly used catheter's safety tied to patient population

A systematic review and meta-analysis of 23 studies reveals that hospitalized patients with PICCs are just as likely to develop bloodstream infections as those with other types of CVCs. The study highlights the need for adherence to proven prevention strategies in non-critical care settings.

Insect 'soup' serving up rapid biodiversity monitoring

Researchers develop fast and accurate method to monitor biodiversity changes using crushed insect 'soup', comparable to traditional labor-intensive approaches. This breakthrough enables rapid detection of environmental shifts and endangered species, informing policy and conservation decisions.

One tree's architecture reveals secrets of a forest, study finds

Researchers have discovered that trees across species exhibit remarkably similar branching patterns, allowing scientists to infer a tree's function regardless of its shape or size. The study confirms a theory developed by UA ecology professor Brian Enquist and has implications for models used to assess forest ecosystems.

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.

Study questions nature's ability to 'self-correct' climate change

A new study from Northern Arizona University found that ecosystems have a limited capacity to absorb atmospheric carbon dioxide, and soil microorganisms play a crucial role in determining carbon storage. The study suggests that widely accepted carbon cycle models overestimate the impact of ecosystems on absorbing carbon.

Medfly and other fruit flies entrenched in California, study concludes

A new study reveals that at least five species of tropical fruit flies, including the infamous Medfly, are permanently established in California and spreading despite decades-long eradication efforts. The study's findings have significant implications for California agriculture and international trading partners.

Observation in the ER can reduce CT scans in kids

A study published in Annals of Emergency Medicine found that observing children with minor blunt head trauma in the emergency department before ordering a CT scan can significantly reduce the need for CT scans. The study found that every hour of observation time decreased CT rates by approximately 70% on average.

Vaccine stirs immune activity against advanced, hard-to-treat leukemia

A new vaccine has shown promise in boosting the immune system's ability to attack leukemia cells in post-transplant patients. The personalized tumor vaccine, which includes the patient's own irradiated leukemia cells combined with an immune stimulant, has been shown to induce a strong and selective immune response.

Meta Quest 3 512GB

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

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.

Community pharmacies are effective locations for rapid HIV testing

Researchers found that community-based pharmacies can be effective locations for offering rapid HIV testing and connecting those who test positive with medical care quickly. The study used five community-based pharmacies in the Bronx and Manhattan to test hard-to-reach individuals, resulting in six positive cases and improved access to...

Dartmouth-led team discovers how plants avoid sunburn

A Dartmouth-led team has identified a group of stress-related proteins in plants that help them avoid sunburn in intense light. These findings could lead to the development of crops with increased protection from bright light and enhanced photosynthesis rates.

Walking to work cuts risk of diabetes and high blood pressure

A new study published in the American Journal of Preventive Medicine found that walking to work cuts the risk of diabetes and high blood pressure by 40% compared to driving. People who walk or cycle to work are also less likely to be overweight, with cyclists being half as likely to have diabetes as drivers.

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.

Sericin can alleviate diabetic hippocampal injury

A study by Dr. Chen's research group reveals that sericin can alleviate diabetic hippocampal damage by improving disorders in the growth hormone/insulin-like growth factor 1 axis, decreasing blood glucose levels and apoptosis of hippocampal neurons in diabetic rats.

Soil carbon 'blowing in the wind'

A new study reveals that Australian soils are losing significant amounts of carbon to wind erosion, with an estimated 1.6 million tonnes lost annually. This loss affects not only agricultural productivity but also the country's carbon accounts and climate change projections.

Timber rattlesnakes indirectly benefit human health

Research by the University of Maryland found that timber rattlesnakes remove 2,500-4,500 ticks from Eastern forest sites annually, potentially reducing Lyme disease incidence. The study highlights the importance of conserving all species, including those often disliked.

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.

Diets of pregnant women contain harmful, hidden toxins

A recent study found that pregnant Hispanic women in California consume high levels of toxins such as methylmercury from tuna and PCBs from farmed salmon, which can cause birth defects and developmental delays. The researchers also highlighted the dangers of tap water and caffeine consumption during pregnancy.

New Moore Foundation grant advances ASU microscopy imaging research initiative

Arizona State University researchers have received a $1.6 million grant to develop advanced microscopy methods that can capture molecular-scale phenomena in living systems. The technique, called plasmonic resonance, allows for the imaging of proteins and other molecules within cells with enhanced contrast and temporal resolution.

Battery design gets boost from aligned carbon nanotubes

Researchers at North Carolina State University have created a new flexible nano-scaffold using aligned carbon nanotubes to improve the stability of rechargeable lithium-ion batteries. The design shows promise in increasing battery capacity and reducing pulverization, a significant challenge in using silicon as an electrode material.

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.

Protein changes are discovered that control whether a gene functions

A Penn State-led research team found that histone protein changes can control whether a gene functions, with the potential to maintain genetic expression and prevent disease. The study's findings have significant implications for the study of diseases like cancer and understanding cellular behavior.

The sun's magnetic field is about to flip

Scientists predict the sun's magnetic field will reverse in three to four months, affecting space weather and potentially cosmic rays. This change marks the midpoint of Solar Cycle 24, with half of 'solar max' behind and half yet to come.

New federal guidelines for managing occupational exposures to HIV

The new guidelines recommend immediate use of a combination of three or more antiretroviral drugs after any occupational exposure to HIV, eliminating the previous recommendation to assess individual exposure risk. Exposed healthcare personnel should complete a full four-week regimen and undergo follow-up testing and monitoring.

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.

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.

Large Area Picosecond Photodetectors push timing envelope

Researchers have developed large area picosecond photodetectors that can measure particle speed with sub-picosecond resolution and spatial precision measured in micrometers. The detectors use Atomic Layer Deposition technique and have potential applications in high-energy physics, medical imaging, and homeland security.

Altering organic molecules' interaction with light

Researchers at MIT have discovered a new platform that enables dramatic manipulation of organic molecules' emission by suspending them on top of a carefully designed planar slab with a periodic array of holes. This platform has important implications for applications such as bio-imaging, bio-molecular detection and the development of o...

Weight loss surgery alters fatty liver disease genes

Researchers found that weight loss surgery can reverse the symptoms of nonalcoholic fatty liver disease by altering DNA methylation and gene expression. This study provides insight into the mechanisms behind bariatric surgery's benefits beyond weight loss.

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.

The dark side of entrepreneurship

Researchers found that entrepreneurs exhibit higher levels of rule-breaking behavior during adolescence, such as cheating and truancy. However, this behavior tends to dissipate by adulthood, with most entrepreneurs showing no significant difference in anti-social tendencies compared to non-entrepreneurs.

More opioid dependence treatment needed

A new report from Simon Fraser University researcher calls for expanded heroin and opioid medical treatment to address rising overdose deaths. The study highlights the gap in treatment availability in Canada and the US and recommends eliminating restrictions on methadone prescribing and reducing financial barriers to treatment.

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.

Why tumors become drug-resistant

Researchers found that AXL receptor pairs with EGFR to make tumors resistant to ErbB inhibitors. Combining drugs targeting AXL and EGFR receptors could offer a better way to fight tumors, according to the study.

Emotional behavior of adults could be triggered in the womb

Researchers at Cardiff University have linked hormonal imbalance in the womb to anxiety and possible vulnerability to poor mental health in adults. Changes in placental function have been implicated in emotional behavior and brain gene expression related to this type of behavior.