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Science News Archive March 2007


Page 1 of 18

Detecting poisons in nectar is an odour-ous task for honeybees

Honeybees can learn to associate toxic odors with food and retain this ability for up to 24 hours. Researchers found that both sugar content and toxin levels affect a honeybee's memory for learned odours, suggesting they may have an innate ability to react to toxins.

CalDigit TS4 Thunderbolt 4 Dock

CalDigit TS4 Thunderbolt 4 Dock simplifies serious desks with 18 ports for high-speed storage, monitors, and instruments across Mac and PC setups.

The gigantic respiration of crystalline solids

Gérard Férey and his team at Institut Lavoisier have discovered a new family of trivalent metal dicarboxylates with unprecedented respiration properties, exceeding 300% volume variation upon solvent immersion. These crystalline solids possess reversible respiration mechanism without apparent bond rupture.

The formation of social memories

Researchers have identified the medial prefrontal cortex as a crucial region in storing and recalling social memories. This finding opens new perspectives on understanding human recollections and mental disorders affecting social skills.

Hard as nails!

Researchers at the University of Manchester discovered that nails are most resilient in humid environments with a relative humidity of 55-60%. This finding may help improve false nail and varnish products, reducing breakage and damage.

Bats get the munchies too!

A recent study discovered that Egyptian fruit bats have a preference for certain sugars, including fructose and sucrose, to counteract the effects of ethanol toxicity. Consuming fructose-containing food resulted in faster decline of ethanol levels in their breath compared to other types of sugar.

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.

New therapeutic insight into duchenne muscular dystrophy

Researchers identify PGC-1alpha as a key genetic component and potential therapeutic target for Duchenne muscular dystrophy. Experimental elevation of PGC-1alpha improves DMD symptoms in mouse models, offering new therapeutic promise.

Cooking up a solution for a culinary problem

Scientists at Rothamsted Research and University of Reading aim to decrease acrylamide formation by identifying its precursors. Low sulphur soils increase asparagine levels, leading to higher acrylamide production.

Apple iPhone 17 Pro

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

Fishing for alternatives

Researchers are developing alternative culture methods to reduce the use of live fish in safety testing, reducing animal experimentation. Dr Richard Handy's perfusion method allows for the controlled exposure of fish organs to toxins, providing insights into toxicity and organ function.

Novel strategies for healthy aging

Researchers have discovered that enhancing glyoxalase 1 levels can decrease glycation damage and extend lifespan in nematodes. The enzyme also protects proteins against oxidation and nitration, promoting healthy aging

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.

Healthy schools project gets an 'A'

The program, which teaches healthy habits and offers hope for a healthier future, has been successful in lowering diastolic blood pressure, total cholesterol, and LDL cholesterol levels among participants. With a significant drop in systolic blood pressures and blood glucose levels, the program aims to fight childhood obesity.

Danish researches solve virus puzzle

Danish researchers have shed light on how viruses, like HIV and bird flu, trick human cells into producing proteins needed for replication. They developed optical tweezers to investigate the mechanical unfolding of pseudoknots, a crucial step in virus replication.

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.

The great escape -- fleeing fish fall in line

Researchers found that fish in schools escape using a relatively fixed chronological order, indicating a potential leadership structure. This study was conducted at the International Marine Centre in Sardinia, Italy, and will be presented at the Annual Meeting of the Society for Experimental Biology.

Novel experiments on cement yield concrete results

A team of researchers from NIST and Northwestern University used advanced techniques to classify water in cement, distinguishing between physically bound and adsorbed water. This discovery has significant implications for predicting concrete properties and improving its durability.

Sandia researchers help to understand climate change

Researchers from Sandia National Laboratories are conducting groundbreaking research at the North Slope of Alaska to better understand climate change. The team is studying how longwave energy gets trapped in the atmosphere, and their findings have significant implications for our understanding of Earth's natural energy balance.

Meta Quest 3 512GB

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

A sweet step toward new cancer therapies

A team of researchers has developed a technique to identify and structurally characterize glycans, assemblies of sugars attached to proteins on cancer cell surfaces, which may lead to the development of diagnostic tools or therapeutic agents specifically targeting them.

Something fishy in human blood could save lives

Scientists have identified a protein that excretes ammonia through pufferfish gills as similar to human Rh blood proteins, offering hope for people with liver and kidney disease. Targeting Rh proteins could lead to new treatments for removing toxic ammonia from the bloodstream.

Preventing cancer without killing cells

Aging cells with dysfunctional telomeres can promote tumorigenesis, but p53-mediated senescence may suppress spontaneous cancer development. Activating the senescence pathway is sufficient to prevent tumorigenesis in mutant mice with dysfunctional telomeres.

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.

Monitoring poisons in the environment -- a woolly matter

A pilot study found significant correlations between copper and lead levels in sheep wool and local streams, suggesting that sheep wool can be a reliable bio-indicator of naturally occurring heavy metal concentrations. The study also revealed sex-specific differences in the accumulation of lead and copper in male sheep.

Concurrent health problems take heavy toll on seniors

New research highlights the impact of concurrent health problems on older adults, with 24% of Medicare beneficiaries aged 65+ and 31.4% of those 85+ having multiple comorbidities. The study aims to improve understanding of comorbidity and develop a comprehensive nosology for classification.

DJI Air 3 (RC-N2)

DJI Air 3 (RC-N2) captures 4K mapping passes and environmental surveys with dual cameras, long flight time, and omnidirectional obstacle sensing.

Traces of nanobubbles determine nanoboiling

The study reveals that nanobubbles formed by the collapse of one bubble become new nucleation sites for later bubbles, allowing them to form earlier and at lower temperatures. This discovery may impact technologies such as inkjet printing and thermal cancer therapies.

Cells selectively absorb short nanotubes

Researchers at NIST found that short DNA-wrapped single-walled carbon nanotubes can selectively absorb into human lung cells, posing a potential health risk. The team's study suggests that the length of the nanotube plays a significant role in determining cellular uptake and toxicity.

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.

AACR-Bardos Awards for undergraduate students announced

The AACR-Bardos Awards program offers financial support to third-year undergraduate students majoring in science, allowing them to attend the Annual Meeting 2007 and present their research. Winners also participate in the Undergraduate Student Caucus and Poster Competition.

Estrogen protects liver after traumatic injury

Research found that estrogen improves host response after traumatic injury and decreases liver enzymes associated with damage. The study identified the critical cell surface receptor, GPR30, involved in estrogen's protective effects on the liver.

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.

Titanium dioxide -- It slices, it dices ...

Researchers propose a novel method using ultraviolet light and titanium dioxide to cut proteins into manageable pieces for analysis. This technique offers advantages over conventional enzyme-based methods, including reduced sensitivity to temperature and acidity, ease of incorporation, and long-lasting material durability.

AACR awards minority and other underrepresented scientists

The American Association for Cancer Research (AACR) has awarded scholarships to 61 underrepresented scientists to participate in the AACR Annual Meeting. The awardees include early-career researchers from historically black colleges and universities, Hispanic-serving institutions, and tribal colleges and universities.

Carry on walking!

Researchers assessed female participants carrying different types of loads, finding that evenly spread loads are more efficient than awkward ones. This study supports the theory that early hominins carried children to adapt to walking on two legs.

New algorithms from UCSD improve automated image labeling

The UCSD system uses a clever image indexing technique that allows it to cover larger collections of images at a lower computational cost. It outperforms existing approaches in terms of annotation and retrieval accuracy, as well as efficiency.

Sandia handheld instrument assesses dental disease in minutes

A Sandia National Laboratories handheld device determines if a patient has gum disease and quantifies its advancement in minutes from a tiny saliva sample. The device's technology also shows promise for detecting biotoxins, improving prostate and breast cancer diagnosis, and measuring animal serum in vaccines.

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.

MIT device draws cells close -- but not too close -- together

A new device created by MIT researchers allows biologists to physically arrange cells to be touching, close but not touching, or completely separated. This enables researchers to study cell interactions and changes over time without breaching the divide, leading to insights into liver cell differentiation and cancer.

Biologists call for better choice of model organisms in 'evo-devo'

Evo-devo researchers are urging scientists to select new model organisms based on their ability to shed light on specific evolutionary themes, rather than just phylogenetic position. The current choice of model organisms has been criticized for being too narrow and not representative of the diversity of life on Earth.

The impossible siblings

Astronomers have described the double asteroid Antiope in unprecedented detail, revealing its unique orbit and shape. The asteroid consists of two rubble-pile chunks of material, tidally locked and rotating around each other at the same speed as they orbit.

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.

New chemistry approach promises less expensive drugs

A team of Princeton University chemists has discovered a new method to synthesize molecules without toxic catalysts, reducing the risk of hazardous barriers in drug development. This breakthrough opens up new possibilities for working with ketones and aldehydes, potentially leading to more efficient synthesis of beneficial enantiomers.

All roads lead to GUN1

Researchers at the Salk Institute discovered that GUN1, a nuclear-encoded protein, plays a crucial role in transmitting distress signals from damaged chloroplasts to the nucleus, triggering a shutdown of photosynthetic genes. This finding sheds light on the complex communication between organelles and the nucleus.

Celestron NexStar 8SE Computerized Telescope

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

Lack of care for older breast cancer patients

Researchers at the University of Manchester found that older women with breast cancer receive lower levels of care compared to younger women. This includes reduced likelihoods of needle biopsy, surgery, and radiotherapy, which can lead to higher local recurrence rates and mortality.

UCSD researchers identify critical receptor in liver regeneration

Researchers at UCSD School of Medicine discovered a cellular receptor involved in triggering cell death is also necessary for tissue repair and regeneration after liver injury. p75 neurotrophin receptor promotes the initial activation of hepatic stellate cells to stimulate new hepatic cell proliferation.