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Science News Archive May 2007


Page 9 of 20

Hyperactivity and academic achievement could be linked by genetics

A study of nearly 2,000 7-year-old twin pairs suggests a strong genetic connection between hyperactivity and poor academic performance. The researchers found that common genetic factors influence both behaviors, possibly due to genes affecting attention span and classroom learning.

Tracking a hot spot

A new study uses satellite imagery to detect location of seismic unrest at Mauna Loa, bringing closer understanding of where an eruption may occur. Researchers can now more precisely forecast locations of volcanic activity, providing critical information for populated areas.

Ski area affects mountain watershed, UVM study shows

A UVM study found ski resort development increases water volume, chloride, and sediment levels in watersheds. Researchers analyzed data from two side-by-side watersheds on Mount Mansfield, showing greater hydrologic effects from resort development than traditional resource extraction.

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.

The benefits of social contact

Research by University of Virginia psychologist James Coan explores how social contact regulates emotional responses to life's stressors. This study provides insights into the benefits of social connection for overall health and well-being.

Making strides in quantum dot infrared photodetectors

Researchers at Northwestern University have developed a quantum dot infrared photodetector that operates at room temperature with improved performance. The device enables thermal imaging at higher temperatures than previous records, opening up new possibilities for applications in medical and biological imaging, environmental monitorin...

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.

Latent memory of cells comes to life

Researchers from the University of Copenhagen have discovered that environmental changes can trigger dormant capacities in cells, allowing them to suddenly change their behavior. This phenomenon is made possible by the dynamic nature of nucleosomes and their ability to carry chemical modifications that control DNA expression.

Executable biology -- Computer science sheds light on animal development

Researchers created a dynamic model to understand cellular signaling pathways in C. elegans, revealing gaps in current understanding and potential for future exploration of biological systems. The model can predict how cells respond to gene mutations and signals, saving laboratory time and resources.

Role of TRPM8 in the development of prostate cancer

Research suggests that TRPM8 is overexpressed in prostate cancer cells, indicating its potential as a therapeutic target. The study also found that endoplasmic reticulum TRPM8 retains functional activity regardless of cell differentiation status, which may contribute to cancer cell growth.

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.

JCI table of contents -- May 17, 2007

Researchers found that TRPM8 is expressed in mature, differentiated human prostate primary epithelial luminal cells, but also in prostate cancer cells. The study suggests that inhibiting ER-TRPM8 or PM-TRPM8 may be a potential therapeutic approach for treating prostate cancer. Additionally, the authors propose that blocking aggrecanase...

Apple iPhone 17 Pro

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

Teaching mediation skills to parents helps siblings resolve conflicts

A study found that teaching parents mediation skills significantly improves their children's conflict-resolution skills. Parents who received training in mediation helped their kids resolve conflicts more positively, behaving more constructively and involving themselves more in the resolution process.

Clock gene plays role in weight gain, study finds

A study by University of Virginia researchers found that mice lacking the Nocturnin gene were resistant to weight gain on a high-fat diet and had normal liver fat levels. This discovery may lead to new treatments for inhibiting obesity and its effects on health.

Soft contacts designed for cone-shaped cornea

Researchers at the University of Rochester developed custom-designed soft contact lenses to correct visual acuity in individuals with keratoconic eyes. The lenses feature irregular front surface profiles that address specific aberrations of the cornea and crystalline lens, resulting in improved vision for subjects.

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.

Oceanic storms create oases in the watery desert

Researchers have discovered that oceanic storms, known as eddies, pump nutrients up from the deep ocean to fuel massive blooms of microscopic plant life. These nutrient-rich waters support a vibrant ecosystem, attracting zooplankton and other animals higher up the food chain.

Why Lincoln fell gravely ill after delivering his Gettysburg Address

A recent study suggests that President Abraham Lincoln was suffering from a life-threatening form of smallpox when he delivered his Gettysburg Address. Researchers compared clinical features of Lincoln's illness to those of smallpox and found a close match, suggesting he had contracted variola major, the more severe form of the disease.

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.

Colorado River streamflow history reveals megadrought before 1490

Researchers reconstruct tree-ring record of upper Colorado streamflows back seven centuries, revealing 25-year drought period with 15% below normal flow. The megadrought spanned 1118-1179, with 13 consecutive years of below-normal flows, and is comparable to the region's last 100 years of below-average flows.

Lowering body temperature could aid standard stroke treatment

UC scientists developed a model to combine current clot-busting medication with below-normal body temperatures to improve ischemic stroke patient treatment. The study found that tPA, an enzyme used in standard stroke treatment, is less effective at lower temperatures, but a higher dosage may be needed.

Adaptive optics leads the way to supermassive black holes

Researchers discovered the location and makeup of a pair of supermassive black holes in a galaxy collision, using adaptive optics to clear atmospheric distortion. The discovery sheds light on the coevolution of black holes and galaxies, with implications for understanding galaxy evolution and properties.

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.

Nutrition and heredity are genetically linked

Scientists discovered a genetic link between glycolysis and DNA replication in Bacillus subtilis, indicating that metabolic signals influence DNA synthesis and stability. This finding suggests a global regulatory function of central carbon metabolism in adjusting cellular functions to nutritional conditions.

There's much more to a walk in the park

Researchers at the University of Sheffield found that parks with high biodiversity levels have a greater impact on people's general well-being. The study suggests that successful urban green space management should prioritize biological complexity to enhance human wellbeing beyond just conservation.

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.

Effect on breast tumors of DNA alternations in 3 genes described

Researchers identified DNA hypermethylation in E-cadherin, p16, and RAR-B2 genes as common in breast tumors. The study found that these alterations were more frequent in ER-negative and PR-negative tumors, but not associated with other clinicopathological features.

New study: Pycnogenol reduces heart failure

A new study shows Pycnogenol supplementation can prevent damage to the heart caused by high blood pressure and hypertension. The natural pine bark extract enhanced collagen connective tissues in cardiac tissue, resulting in stronger cardiac chambers.

Journal details how global warming will affect the world's fisheries

Research from Arizona State University highlights how global warming will drastically alter the world's fisheries, threatening human nutrition and species health. The study finds that changes in ocean temperatures and atmospheric conditions will affect fish stocks and habitats, leading to potential extinction of certain species.

AGU Journal Highlights -- May 16, 2007

The Three Gorges Dam in China is shrinking the Yangtze delta due to sediment retention. Meanwhile, a new model suggests that massive methane releases from Arctic permafrost are unlikely in this century. Satellite data also reveals complex flood wave patterns in the Amazon River, which can improve hazard identification. Additionally, hi...

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.

New study examines 'brain's own marijuana'

Researchers at the University at Buffalo are investigating endocannabinoid, the 'brain's own marijuana,' to regulate stress and anxiety. The study aims to develop a new pharmacotherapy strategy for stress-related mood disorders.

Fluke 87V Industrial Digital Multimeter

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

NASA scientists pioneer technique for 'weighing' black holes

Researchers have successfully applied a new method to determine the masses of black holes in binary systems, including Cygnus X-1 and NGC 5408. The technique takes advantage of X-ray observations of quasi-periodic oscillations (QPOs) and their relationship with the accretion disk.

Permanent ice fields are resisting global warming

Researchers found that high-altitude ice fields, like Mont Blanc and Dôme du Goûter, have remained stable in mass balance over the last 100 years. The accumulation of snow and ice has varied little since the beginning of the 20th century, indicating a lack of significant melting due to climate change.

Mechanism of microRNAs deciphered

MicroRNAs regulate cell division and development by blocking protein synthesis at its earliest stage, translation. Researchers developed a new method to study microRNA action in a test tube, revealing that they bind to messenger RNAs and prevent their translation into proteins.

UC Irvine researchers reveal first images of brain changes associated with memory

Researchers have developed unique images of physical changes in brain cells associated with memory, uncovering clues about memory loss linked to cognitive disorders. The study also reveals that LTP deficiencies accompany the memory loss seen during the early stages of Huntington's disease and can be fully reversed through treatment.

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.

ACE inhibitors help preserve kidney function in IgA nephropathy

Researchers found that early treatment with ACE inhibitors can preserve kidney function and reduce the risk of irreversible damage in young patients with early-stage IgA nephropathy. The study suggests that starting treatment early may limit the need for renal replacement therapy.

To what extent are emergency departments being used for primary care?

Researchers analyzed ED usage using the 'Emergency Department Algorithm' (EDA) tool, finding that only 6.8% of Medicaid dollars were spent on ED-provided care, contrary to estimates. The study suggests that legislative efforts to reduce ED spending for Medicaid patients would have a minimal impact on overall expenditures.

Will the healthcare workers go to work during disasters?

Researchers surveyed healthcare workers about their willingness to report to work during disasters. Workers were more likely to come to work when they felt their role was important, safe traveling to work, and supported by family. However, fear and uncertainty can lead to a decrease in staff availability, complicating disaster response.

IMS updated recommendations on postmenopausal hormone therapy

The International Menopause Society has updated its recommendations on hormone therapy for postmenopausal women, highlighting the importance of individualized treatment and a balanced approach. The new guidelines take into account the latest scientific evidence and aim to provide a global framework for menopause management.

Celestron NexStar 8SE Computerized Telescope

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

Ottawa aggressive protocol for acute atrial fibrillation is successful

The Ottawa Aggressive Protocol, involving IV procainamide and electrical cardioversion, is effective in treating AAF and AAFL with a high discharge rate of over 90%. This approach stands in contrast to traditional US practice, which often involves hospital admission followed by cardiologist treatment.

Infants with bronchiolitis may benefit more from albuterol

A double-blind randomized clinical trial found albuterol to have a clear advantage over epinephrine in successful discharges from the Emergency Department. The study involved over 700 infants and showed a surprising result of a small but real advantage in using albuterol.

Cracks on Enceladus open and close under Saturn's pull

Researchers found that tidal forces caused by Saturn's gravity can control the timing of eruptions from cracks in Enceladus' southern hemisphere. The study suggests that these cracks, known as Tiger Stripes, are warmer than their surroundings and may be the source of eruptions.

Herpes infection may be symbiotic, help beat back some bacteria

Researchers found that mice with chronic herpes virus infections can resist certain bacterial infections, suggesting potential benefits from latent viral infections. The study suggests that human immune systems have evolved to benefit from these chronic infections, which could impact vaccine development and disease research.

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.

Scientists discover new life in the Antarctic deep sea

A recent study published in Nature reveals the discovery of over 700 new species in the Antarctic deep sea, including carnivorous sponges and crustaceans. The research suggests that the glacial cycle led to an intermingling of species from shallow and deep water habitats, redefining our understanding of ocean evolution.

Growing nerve cells in 3-D dramatically affects gene expression

Researchers found that cells cultured in three dimensions exhibit distinct gene expression patterns, growing faster and exhibiting more realistic shapes. The findings suggest that 3-D cell culture methods may be a better representation of the human body's complex cellular environments.

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.