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Science News Archive 2010


Page 101 of 283

IU chemists develop new 'light switch' chloride binder

Researchers at Indiana University have designed a molecule that binds chloride ions but can be compelled to release them in the presence of ultraviolet light. The 'light switch' properties of this foldamer could be valuable tools for biochemists, allowing them to adjust the availability of chloride in their experiments.

NSF announces Future Internet Architecture Awards

The NSF has announced four new projects worth up to $8 million each to explore new internet architectures that can meet the challenges of the 21st century. The projects will focus on developing a more trustworthy and scalable network architecture.

Apple iPhone 17 Pro

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

Smoking increases depressive symptoms in teens

A recent study published in Addictive Behaviors found that smoking may increase depressive symptoms in some adolescents who use cigarettes as a mood enhancer. The long-term Nicotine Dependence in Teens (NDIT) study, conducted by researchers at the University of Toronto and Montreal, involved over 662 high school teenagers.

Vaccine has cut child cases of bacterial pneumonia, says study

A new study published in Thorax journal reveals that the introduction of a vaccine to combat bacterial pneumonia has led to a significant decrease in hospital admissions for children under 15 years old. The number of admissions decreased by 19% over two years, with a corresponding reduction in empyema cases.

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.

Fertilizer chemicals linked to animal developmental woes

New research from North Carolina State University reveals that fertilizer chemicals can be converted into toxic nitric oxide by water fleas, causing developmental and reproductive problems. The study's findings raise concerns about the impact of these chemicals on other organisms and highlight the need for further research.

Scientists concerned about environmental impact of recycling of e-waste

A study published in Atmospheric Environment found toxic elements in e-waste recycling emissions in southern China, posing health risks to workers and the environment. The research team identified carcinogens and persistent organic pollutants through mass spectrometry and other instrumentation.

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.

Scientists find link in humans between nerve cell production, memory

A recent study published in the journal Brain has found a link between nerve cell production and memory in humans. The research suggests that increasing nerve cell regeneration in the hippocampus may alleviate or prevent memory loss, providing new insights into age-related cognitive decline.

Fat serves as cells' built-in pH sensor: UBC research

A team of University of British Columbia researchers found that phosphatidic acid, a type of fat present in all cells, serves as a cellular pH sensor. This discovery has important implications for understanding human metabolism and disease.

Large CO2 release speeds up ice age melting

A recent study using radiocarbon dating found that a large CO2 release occurred at the end of the last ice age, speeding up its melting. The researchers suggest that this CO2 release may have implications for modern-day climate change.

Celestron NexStar 8SE Computerized Telescope

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

Artificial enzyme removes natural poison

A man-made chemical enzyme has been used to neutralize glycoside esculin, a toxin found in horse-chestnuts, demonstrating the feasibility of 'Chemzyme' technology. The artificial enzyme's resilience and designability make it a promising solution for various industrial applications.

Astronomers find 2 large planets, plus possible super-Earth-size one

A team of astronomers from the University of Florida has discovered two Saturn-sized planets and a possible third planet with an Earth-like size orbiting a distant star. The discovery was made using a new method of confirming planets called transit timing variation, which allows for more efficient confirmation of planetary systems.

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.

Supplement produces a 'striking' endurance boost

A dietary supplement boosting nitric oxide levels can significantly improve stamina and allow athletes to exercise up to 20% longer. The study suggests a 1-2% improvement in race times, which may be the difference between winning and losing at elite levels.

Ant colonies shed light on metabolism

A team of researchers studied California seed harvester ants to understand how colony size affects metabolism. They found that the metabolic rate decreases as colony size increases, but not in a straightforward manner.

No lounge for local lizards as living room vanishes

A new study by Queen's University Belfast found that Northern Ireland's lizard population is under threat from agricultural intensification, which may lead to their disappearance from the landscape. The researchers highlight the need for a new ecological network to preserve heath and boglands, essential habitats for the species.

CalDigit TS4 Thunderbolt 4 Dock

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Ants found to use multiple antibiotics as weed killers

Fungus-farming ants use multiple antibiotics produced by actinomycete bacteria to control unwanted fungi and bacteria in their cultures. This discovery has identified a new antibiotic with potential medical applications, highlighting the importance of studying insect agriculture.

2 Hispanic researchers from Argonne receive national acclaim

Two researchers, Jorge Alvarado and Monica Regalbuto, have been recognized for their exceptional work in environmental remediation and nuclear fuel cycle technology. Their achievements demonstrate the importance of diversity and talent in leading-edge scientific research.

SAMSUNG T9 Portable SSD 2TB

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Core values unite Americans, despite divisions

A University of Michigan survey found that core values such as equality and respect for diversity are widely held across the US population. However, divisions exist on issues like same-sex marriage, immigration, and universal healthcare.

Analysis of Ashkenazi Jewish genomes reveals diversity, history

Researchers found Ashkenazi Jews have higher genetic diversity than previously thought, with evidence of interbreeding with European and Middle Eastern populations. Only a minority of disease-related genes show signs of positive selection, suggesting most traits arose through random genetic drift.

Meta Quest 3 512GB

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Why are drug trials in Alzheimer's disease failing?

The Lancet Editorial highlights the poor record of Alzheimer's drug trials, citing issues with inaccurate animal models and poor methodology. The best time to treat Alzheimer's may be before memory loss occurs, but this is challenging to model in animals.

Distant star's sound waves reveal cycle similar to the sun's

Scientists have discovered a magnetic cycle in a distant star using stellar seismology, finding a pattern similar to the Sun's solar cycle. The study aims to better understand how magnetic activity cycles differ from star to star and its impact on potential planets.

Adherence to practice guidelines may reduce bleeding in cirrhosis patients

A new study found that adherence to practice guidelines reduces bleeding in cirrhosis patients, with 82% of those without bleeding receiving their screening EGD within six months. Patients who did not bleed were more likely to have received their screening EGD within the six-month window compared to those who bled.

Fluke 87V Industrial Digital Multimeter

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

Studies on combat-related substance use and abuse to be funded by NIH and VA

The National Institute on Drug Abuse is awarding over $4 million in grant funding to examine substance abuse related to deployment and combat-related trauma. Researchers will explore treatment strategies, including cognitive behavioral therapy and Web-based approaches, to help veterans who have co-occurring disorders.

Researchers closer to development of drug to prevent deadly immune response

A team of researchers has isolated a molecule that can shut down a dysfunctional immune response, causing deadly conditions like hemorrhagic shock, delayed heart attack deaths, and rheumatoid arthritis joint destruction. The discovery marks a significant step toward clinical application, with the potential to save lives.

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.

On organic coffee farm, complex interactions keep pests under control

A 10-year study of an organic coffee farm in Mexico uncovered intricate interactions between ants, beetles, and other species that buffer the farm against extreme outbreaks of pests and diseases. The complex web buffers the farm against magic bullets necessary for modern agriculture.

Shrinking atmospheric layer linked to low levels of solar radiation

A recent study published in Geophysical Research Letters found a link between the sun's ultraviolet radiation levels and a temporary shrinking of Earth's outer atmosphere. The research suggests that the sun's magnetic cycle may vary more than previously thought, leading to dramatic fluctuations in atmospheric density.

Yale team finds a genetic rarity: A mutation that restores health

Researchers found a genetic rarity where disease-causing genes can self-repair, resulting in spots of normal skin amidst diseased skin. The recombination of chromosomes prior to cell division leads to cells with either two mutant copies or no mutant copies, forming normal skin patches.

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.

Post-Katrina mold increases asthma symptoms and attacks in children

A new study reveals that post-Katrina mold in New Orleans has made hundreds of children with asthma sick. The Merck Childhood Asthma Network's HEAL program found that nearly 80% of children were sensitive to mold, a figure nearly 30% higher than for children in other US cities.

Study: Generation X more loyal to religion

A new study by University of Nebraska-Lincoln sociologist Philip Schwadel found that Gen Xers are surprisingly loyal to their faith, in contrast to Baby Boomers who are 40-50% more likely to disaffiliate. The research suggests that this loyalty may translate into a more stable nation in terms of religiosity.

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.

Stretched polymer snaps back smaller than it started

A team of researchers at Duke and Stanford have found a polymer molecule that can trigger a chemical reaction when stretched, enabling it to build its own repairs. The molecule, called a gem-difluorocyclopropane (gDFC), snaps back smaller than before after stretching, potentially leading to the development of self-healing materials.

Autism and schizophrenia: Scientists measure gene mutation rate

A study by University of Montreal scientists found an increased frequency of severe de novo mutations in critical brain genes for both autism and schizophrenia. The research suggests that harmful de novo mutations may explain the high global incidences of these conditions.

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.