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Science News Archive 2011


Page 29 of 311

Nanowrinkles, nanofolds yield strange hidden channels

Researchers at Brown University have found unusual properties in wrinkles and folds at the nanoscale, including hidden long waves and closed nanochannels. These discoveries hold promise for developing new technologies like fluid-carrying nanochannels and printable cell phones.

Blocked holes can enhance rather than stop light going through

Researchers at Princeton University discovered that blocking small holes in a metal film enhances light transmission by up to 70%. The technique challenges common assumptions in optics and could have significant implications for ultrasensitive detectors. Further investigation is needed to apply this finding to various applications.

Use of retail medical clinics rises 10-fold over 2-year period, study finds

A new RAND Corporation study reveals a 10-fold increase in retail clinic usage between 2007 and 2009, driven by factors such as age, health status, income, and proximity. Retail clinics are found to be more effective for managing simple acute conditions like upper respiratory infections and ear infections.

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.

Peering inside the 'deflagration-to-detonation transition' of explosions

Scientists have discovered that unconfined flames can spontaneously form detonations in reactive gases and astrophysical systems, providing a missing link for theoretical models of Type la supernovae. The research team used computer simulations to study the deflagration-to-detonation transition in hydrogen-air and methane-air mixtures.

When friends fail them, girls hurt worse than boys

A new report from Boston College and Duke University finds that girls are more devastated than boys when friends let them down. The study examined fourth- and fifth-grade children and found that girls interpreted friendship transgressions in a negative way, leading to increased anger and aggression.

Girls feel more anger, sadness than boys when friends offend

A Duke University study found that pre-teen girls are just as likely to react aggressively to a friend's betrayal as boys, but may struggle more with feelings of sadness. The research suggests that girls' friendships require a different approach than previously thought, focusing on teaching them how to cope when a friend lets them down.

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.

Is sustainability science really a science?

Researchers from Los Alamos National Laboratory and Indiana University analyzed the field's evolution, composition, and collaboration structure. The study concludes that sustainability science is both applied and basic, spanning worldwide institutions and governments. A global collaboration network emerged around 2000, defining the fie...

New projection shows global food demand doubling by 2050

A new projection shows global food demand doubling by 2050, which could lead to significant environmental issues if not addressed. Increasing yield in poorer countries through adapted high-yielding technologies and efficient nitrogen fertilizers usage can help mitigate these effects.

Toll-like receptors play role in brain damage in newborns

New research reveals that Toll-like receptors play a major role in brain damage risk for newborns, contributing to conditions like cerebral palsy and epilepsy. The discovery could lead to more effective treatment strategies, such as blocking special TLRs to reduce brain damage following hypoxia.

Hefty impact of poor eating habits

A Concordia University study found that 25% of Canadians aged 31 to 50 exceed the safe limit of total calories derived from fats. Individuals who eat well are 20% less likely to be obese, according to the researchers.

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.

Commercial 'green' solar cells may be possible, say Pitt researchers

Pitt researchers are working on a new method to produce solar cells with higher energy efficiency rates using Kelvin Probe Force Microscopy. The goal is to create plastic solar cells that can be used to charge devices simply by stepping into sunlight, reducing energy consumption and promoting sustainable energy.

Surgery improves endocarditis-induced heart failure survival rates

Researchers at Duke University Medical Center found that surgery significantly improves short- and long-term outcomes in patients with heart failure caused by bacterial endocarditis. The study showed patients who underwent surgery had a lower mortality rate compared to those treated with medical therapy alone.

$3.8 million grant investigates link between sleep apnea and atrial fibrillation

A $3.8 million grant will investigate the connection between sleep apnea and atrial fibrillation, with the goal of identifying new approaches for prevention and treatment. The study aims to characterize how sleep apnea affects the heart's structure and function, potentially leading to improved outcomes for patients with this condition.

McMaster study calls sodium intake guidelines into question

A McMaster University study found that moderate salt intake was linked to the lowest risk of cardiovascular events, while excessive or low salt intake increased the risk of stroke, heart attack, and other complications. The research calls into question current guidelines recommending low sodium intake.

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.

Awareness biases information processing

A new study found that conscious awareness influences information processing during decision making, leading to non-linear integration strategies. Participants who were aware of the evidence weighted new information based on their existing knowledge.

Apple iPhone 17 Pro

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

UT Southwestern team identifies tumor-specific pathway

Researchers discovered a unique metabolic pathway in some tumors, potentially targeting for drug development. The reverse Krebs cycle pathway was found to run counter-clockwise in tumors, providing a new therapeutic target. This breakthrough could lead to effective treatments for certain types of cancer.

The best way to market fine wine: Teach and learn or wine and dine?

A recent study published in Cornell Hospitality Quarterly found that novice wine consumers can be swayed by advertising and create stronger memories when they have a better understanding of the product's background. To combat this, wine producers are advised to combine tasting experiences with educational materials.

New design for mechanical heart valves

Researchers created a new design for mechanical heart valves that closely matches the pattern and rate of blood flow found in healthy hearts. The asymmetric valves improved cardiac function, reducing the effort required by the heart muscle and restoring its regulatory mechanism.

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.

Bat plant could give some cancers a devil of a time

Researchers at the University of Texas Health Science Center have identified potent compounds in the bat plant that can selectively kill cancer cells. The taccalonolides stabilize microtubules in cancer cells without affecting healthy cells.

Physical activity impacts overall quality of sleep

A new study found that 150 minutes of moderate to vigorous physical activity per week significantly improves sleep quality, with participants feeling less sleepy during the day. The study's results support mounting research linking regular exercise to various health benefits, including improved daytime alertness.

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.

Seals show different levels of parenting skills

Researchers found that seal mothers adopt a wide range of mothering styles, with some being very attentive while others are not. The study also revealed large differences in response to potential dangers among both female and male seals, with no correlation to age or size.

Saving Da Vinci's Last Supper from air pollution

A multi-national team, including USC scientists, found that indoor pollution has been drastically reduced at the church housing the famous painting by 88 and 94 percent. However, fatty lipids from visitors' skin still pose a threat of soiling on the Last Supper, despite strict visitor access regulations.

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.

Dendritic cells protect against acute pancreatitis

Researchers found that high levels of dendritic cells in the pancreas can alleviate cellular stress caused by severe inflammation, while low levels are associated with exacerbated pancreas injury. Dendritic cells play a critical protective role in pancreatic organ survival.

Stigma among HIV-positive women complex and overlapping

A study by Mona Loutfy and colleagues found that women experience a complex system of stigma related to HIV, sexism, racism, homophobia, and sex work. The researchers identified resilience, social networks, and challenging stigma as effective coping strategies.

Herbicide may affect plants thought to be resistant

Researchers found that ABCB4, a protein responsible for moving auxin, also removes excess hormone when it accumulates, potentially affecting root growth. The study suggests that the herbicide 2,4-D may impact plants thought to be resistant due to its effect on this protein.

Babies who eat fish before 9 months are less likely to suffer pre-school wheeze

A Swedish study found that babies who started eating fish before nine months are less likely to suffer from pre-school wheeze. However, children who were treated with broad-spectrum antibiotics in the first week of life or whose mothers took paracetamol during pregnancy faced an increased risk, particularly of multiple-trigger wheeze.

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.

NASA's NPP satellite acquires first VIIRS image

The Visible Infrared Imager Radiometer Suite (VIIRS) onboard NASA's NPP satellite has acquired its first measurements, capturing high-resolution imagery of Eastern North America. The data will be used to observe the Earth's surface, including fires, ice, ocean color, vegetation, clouds, and land and sea surface temperatures.

Meta Quest 3 512GB

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

P Rex-1 protein key to melanoma metastasis

A team of UNC scientists has identified P-Rex1 protein as a crucial factor in the movement of melanoblasts, leading to melanoma development. The study found that mice lacking this protein are resistant to melanoma metastasis, suggesting P-Rex1 plays an important role in cancer spread.

Chemistry professor links feces and caffeine

A study by Prof. Sébastien Sauvé and colleagues has discovered a strong correlation between the levels of caffeine in water and the level of bacteria, making caffeine a useful indicator of pollution due to sewerage systems.

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.

Why has synesthesia survived evolution?

Researchers find synesthesia is an authentic phenomenon with sensory basis, common among artists and novelists. The 'synesthesia gene' may have evolved to make highly creative individuals more prone to link unrelated ideas.

Post-traumatic stress risk to police officers lower than previously thought

A groundbreaking study by the Institut de recherche Robert-Sauvé en santé et en sécurité du travail found that post-traumatic stress disorder (PTSD) risk to police officers is lower than initially thought. Police officers who received interventional support after traumatic events showed reduced symptoms of PTSD.

Olympic Villages: Catalyst for urban renewal, or post-Games hangover?

Cities' grandiose Olympic Village projects often prioritize private sector interests over public good, leading to significant financial burdens on taxpayers. Sociologist Jay Scherer's research highlights the importance of democratic transparency in such partnerships, emphasizing the need for community benefits and fair risk distribution.

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 impending revolution of low-power quantum computers

Research on tunnel-FET technology, which exploits the quantum tunnel effect, promises to reduce power consumption of transistors and microprocessors. This breakthrough could lead to ultra-miniaturized, zero-power electronic devices.

Future prostate cancer treatments might be guided by math

A new mathematical model predicts individual patient responses to therapy and identifies optimal treatments for advanced prostate cancer. The model incorporates personalized data, including tumor cell characteristics, to provide more accurate treatment decisions.

A better way to count molecules discovered

A new method for counting molecules has been developed by researchers at Karolinska Institutet, allowing for the accurate measurement of RNA and DNA molecules in cells. This breakthrough enables the counting of absolute numbers of molecules, rather than just relative differences between samples.

Fluke 87V Industrial Digital Multimeter

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

Wildlife access critical to children's health

Researchers discovered a powerful connection between loss of wildlife access and micronutrient deficiencies in children. Losing access to wildlife induces a 30% relative increase in anemia prevalence among pre-adolescent children. Conservation efforts are crucial to prevent severe health consequences.

New culprit found in Lou Gehrig's disease

Researchers at Northwestern University have discovered a second faulty gene, sequestosome1, contributing to the degeneration of motor neurons in ALS. The study provides new insights into the disease's progression and potential targets for drug therapies.