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Science News Archive March 2012


Page 16 of 32

Exotic materials will change optics, Duke researchers say

Duke researchers have developed exotic materials that can control light at will, allowing for the creation of holograms in the infrared range. The team's innovative approach enables a broad range of optical devices with complex properties, opening up new possibilities for advanced optics and optoelectronics.

Need for speed

A team of scientists at EMBL found that oskar RNA requires both tags to reach its correct destination, suggesting a 'ticket' that also affects its speed of transport. The study provides clues on how a single molecule could receive tickets for different destinations depending on the type of cell.

Genetic variation in East Asians found to explain resistance to cancer drugs

A study found that a genetic variation in the BIM gene variant occurs in about 15% of the typical East Asian population and contributes to some patients' failure to benefit from tyrosine kinase inhibitor drugs. The researchers identified a novel class of BH3-mimetics as a potential treatment option to overcome this resistance.

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.

Looking at quantum gravity in a mirror

Researchers propose a new quantum experiment using Planck-mass mirrors to test predictions of quantum gravity. The team's findings suggest that certain modifications predicted by quantum gravity proposals could be verified in the laboratory, potentially shedding light on the unification of quantum mechanics and general relativity.

Hazy shades of life on early Earth

A new study reveals that the Earth's early atmosphere periodically transitioned between a hydrocarbon-rich state and a haze-free environment due to microbial activity. This 'see-sawing' phenomenon had a profound impact on the climate system, with evidence suggesting a significant role in regulating atmospheric oxygen levels.

A surprising new kind of proton transfer

Researchers found that protons can transfer without hydrogen bonds, involving significant rearrangements of molecular fragments. Methyl groups on uracil dimers played a crucial role in enabling this process.

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.

Bone marrow transplant arrests symptoms in model of Rett syndrome

A bone marrow transplant has been shown to arrest severe symptoms of Rett syndrome, a devastating neurological disorder, by replacing faulty immune system cells. The procedure significantly extended the lifespan of Rett mouse models and improved their mobility, breathing, and overall health.

Mesquite trees displacing Southwestern grasslands

Researchers found that mesquite trees and woody shrubs outperform grasslands in coping with heat and water stress, despite being less adapted physiologically. The study suggests that deep roots allow mesquites to access groundwater inaccessible to shallow-rooted plants.

Fluke 87V Industrial Digital Multimeter

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

Depression increases death risk in coronary stent patients

A recent study by the European Society of Cardiology has found that depression increases the risk of death in patients who have a coronary stent implanted. After seven years of follow-up, depressed patients were 1.5 times more likely to die than non-depressed patients.

Nanopills release drugs directly from the inside of cells

Researchers developed nanoparticles called nanopills to release proteins with therapeutic effects, successfully recovering activity in 'sick' mammalian cells. The technology has been licensed and is being developed by biotech firm Janus Developments.

Apple iPhone 17 Pro

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

Treating psoriasis to prevent heart attacks and strokes

A clinical study found that treating psoriasis with adalimumab significantly decreased vascular inflammation, a major risk factor for cardiovascular disease. The study also showed a 51% decrease in C-reactive protein levels among treated patients, compared to a 2% decrease in the control group.

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.

Glacier-fed river systems threatened by climate change

Glacier-fed river ecosystems face extinction due to climate change, with up to 11-38% loss of species adapted to glacial streams. Researchers from the University of Copenhagen warn that this could have unknown consequences for ecosystem functioning.

Environmental factors in Tiny Tim's near fatal illness

Researcher Russell Chesney hypothesizes that 18th century London's crowded living conditions, poor diets, and low sunlight exposure contributed to high rates of rickets and tuberculosis in children like Tiny Tim. Improved nutrition, vitamin D from sunlight and cod liver oil could have prevented the boy's fatal condition

Obesity raises death risk tied to sleeping pills

Researchers found that obese patients taking sleeping pills have a significantly higher risk of mortality, nearly doubling the rate even among those prescribed fewer than 18 pills per year. The study also revealed a stronger association in men and young adults, with obesity emerging as a marker of increased vulnerability.

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.

Who wouldn't pay a penny for a sports car?

In a study of hundreds of online auctions, Northwestern University researchers found that all participants use the optimal strategy, making the auction a game of pure chance. The 'bursty' strategy, which combines exploitation and exploration, is used by participants but ultimately leads to no advantage.

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.

Researchers print live cells with a standard inkjet printer

Researchers from Clemson University have developed a method to create temporary holes in the membranes of live cells using a standard inkjet printer. This allows them to introduce molecules inside the cells that wouldn't otherwise fit, enabling studies on cell mechanics and responses to mechanical forces.

Computer scientist Jeffrey Bigham wins NSF Career Award

Bigham's proposal, Closed-Loop Crowd Support of People with Disabilities, aims to leverage the crowd to provide real-time feedback and support to individuals with visual impairments or other disabilities. The NSF CAREER Award will support his research over the next five years.

New technology to aid crystallization prediction

Visual HABIT software helps predict crystal properties in different chemical environments, reducing early-stage laboratory research and development costs. The technology enables companies to adopt a 'bottom-up' approach to product design in pharmaceutical, agrochemical, and fuel sectors.

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.

An invasive Asian fly is taking over European fruit

The Asian fly species Drosophila suzukii is taking over European fruit, particularly cherries and red fruits, causing significant damages to crops. The study found that the fly can lay eggs in unaffected fruit, leading to destruction of the fruit by its larvae.

Novel plastics and textiles from waste with the use of microbes

The Academy of Finland Centre of Excellence develops microbial cells to produce organic acids for industrial applications, including manufacturing bioplastics and medical materials. The method allows for efficient conversion of plant biomass sugars into sugar acids and their derivatives, offering alternatives to oil-based raw materials.

Ultracold experiments heat up quantum research

Researchers at the University of Chicago experimentally demonstrate quantum criticality in ultracold atoms, a phenomenon that may connect the atomic realm to deep questions of cosmology. This breakthrough could lead to simulations of the early universe by studying systems in states of quantum criticality.

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.

Closing hole in the heart no better than drugs in preventing strokes

A landmark clinical trial found that plugging a hole in the heart is no more effective than medication in preventing strokes. The study enrolled 909 patients with patent foramen ovale (PFO) and suffered previous strokes or transient ischemic attacks, and found that closure device was not superior to drug therapy alone.

New research lowers past estimates of sea-level rise

Scientists have reevaluated past sea-level rise estimates, finding that the seas rose 20-43 feet higher than today during an extremely warm period 400,000 years ago. This new research helps narrow the range of global sea-level projections for the future, providing a more accurate understanding of potential changes.

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.

Nano rescues skin

Researchers have developed nanoparticles of chitosan, a natural polysaccharide from shrimp shells, with effective antimicrobial activity against Staphylococcus saprophyticus and Escherichia coli. These nanoparticles also stimulate skin cell growth, enhancing wound healing and potentially leading to anti-aging benefits.

NASA sees cyclone Lua strengthening for March 17 landfall

Cyclone Lua is strengthening as it approaches the Pilbara coast in Northern Australia, with forecasters predicting a landfall on March 17. The storm's cloud top temperatures indicate signs of strengthening, including compact clouds and tropical storm-force winds extending out to 160 nautical miles.

Inflammatory biomarkers improve the clinical prediction of mortality in COPD

A recent study found that adding inflammatory biomarkers improves the clinical prediction of mortality in patients with chronic obstructive pulmonary disease (COPD). The addition of a panel of selected biomarkers significantly improved the ability of clinical variables to predict mortality, with a C-statistic of 0.726.

Checking off symptoms online affects our perceptions of risk

A new study found that the order in which symptoms are presented online significantly affects perceived risk of illness, with unchecked boxes offering reassurance. Researchers suggest grouping common and mild symptoms at the top of lists to encourage early health screenings.

Solved: The mystery of the blood orange

Researchers have discovered that a retrotransposon element is responsible for inducing anthocyanin production in blood oranges when exposed to cold conditions. This finding has significant implications for the future of blood orange production, potentially allowing for reliable worldwide cultivation and increasing their availability as...

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.

Fundamental steps needed now in global redesign of Earth system governance

A group of 32 leading experts argues for immediate and ambitious reforms in global environmental governance to address critical tipping points in the Earth system. The authors propose a new framework for sustainability governance, including the creation of a Sustainable Development Council and upgrades to the UN Environment Program.

Early spring drives butterfly population declines

Early snowmelt in the Colorado Rocky Mountains decreases flower numbers and nectar availability, leading to a decline in the Mormon Fritillary butterfly population. The study found that early snowmelt in consecutive years explained most of the variation in population growth rate.

Plastics in electrical waste: Disposal or recycling?

Researchers find high concentrations of heavy metals and restricted brominated flame retardants in mixed plastics from disassembled electrical and electronic equipment. The study emphasizes the importance of implementing strict quality management to prevent substance release into the environment or new products.

Celestron NexStar 8SE Computerized Telescope

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

Computer simulations help explain why HIV cure remains elusive

A new study suggests that even with a small initial virus population, HIV rapidly evolves to evade immune defenses and treatments due to mutation, recombination, and random genetic changes. This findings sheds light on the difficulty in developing an HIV cure and highlights the need for novel strategies to control the virus.