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Science News Archive 2008


Page 194 of 240

Depressed caregivers hostile, not warm, to children

A new study found that caregivers with moderate to severe depressive symptoms exhibited lower levels of warmth and higher levels of hostility towards their low-income children with asthma. Researchers used data from a longitudinal study examining treatment adherence among these families.

Apple iPhone 17 Pro

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

Molecular biology of sleep apnea could lead to new treatments

Researchers have identified a link between protein misfolding and sleep apnea, finding that cells with healthy proteins may repair themselves, while unhealthy cells self-destruct. A drug called salubrinal shows promise in preventing cell death, but its toxicity limits its potential.

Food Policy Institute primer on food imports and regulations

The US food import system is a complex network of policies and procedures that regulate the entry of foreign foods into the country. The Food Policy Institute report provides an overview of current issues, processes, and proposed changes to the system.

Punishment does not earn rewards or cooperation, study finds

A study by researchers at Harvard University found that punishing others does not increase the average payoff of a group. Instead, it leads to reduced individual payoff and a downward spiral of retaliation. The study suggests that punishment may have evolved for dominance hierarchy and ownership defense, rather than cooperation.

Good luck indeed: 53 million-year-old rabbit's foot bones found

Researchers have discovered 53 million-year-old rabbit's foot bones that predates the oldest previously known rabbits by several million years. The fossils found in west-central India show advanced rabbit-like features and extend the record of rabbits on the Indian subcontinent by 35 million years.

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.

Robot fetches objects with just a point and a click

Researchers at Georgia Institute of Technology developed a robot called El-E that can find and deliver everyday items using a direct laser pointer interface. The robot uses multiple methods to localize objects and grasp them, making it particularly useful for patients with severe mobility challenges.

'At home' genomic tests for disease risk premature

Genetic tests marketed directly to consumers may be premature and lack scientific validity. Dr. Kenneth Offit warns of the risks of self-ordering these tests without guidance from healthcare professionals. He advocates for cautious introduction of new 'whole genome' testing in clinical trials.

Rabbits to the rescue of the reef

Scientists found that rabbit fish are efficient herbivores capable of controlling weedy growth on coral reefs. The fish concentrate their efforts on the reef crest, but less effectively on slopes and flats, highlighting the need for a diverse 'guild' of species to maintain reef resilience.

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.

New technique improves outcome for living donor liver transplants

A new CT imaging technique has significantly improved the outcome of living donor liver transplants by enhancing accurate visualization of vital bile duct anatomy. This innovation, adopted by radiologists at the University of Alberta Hospital, aims to reduce screening time and improve convenience for potential donors.

The song doesn't remain the same in fragmented bird populations

A study found that individual song complexity is associated with the overall population's viability, particularly in smaller, fragmented populations. Birds from more productive populations sang more complex songs, indicating higher mating success and population health.

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.

NIST evaluates firefighting tactics in NYC high-rise test

Researchers used a NYC high-rise as a fire laboratory to study wind-driven flame, smoke, and gas spread through corridors and stairways. Positive pressure ventilation fans and prototype devices helped control deadly heat and smoke from wind-driven fires.

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.

Cutting-edge computational molecular biology research featured in Genome Research

Researchers have developed new mathematical models to infer ancestral origins from genomic data, significantly improving accuracy. Additionally, a novel technique for mapping disease genes using admixture linkage disequilibrium has been created, offering a powerful approach for identifying genetic determinants of common diseases.

Loopy photons clarify 'spookiness' of quantum physics

Scientists created pairs of entangled photons using a twisted optical fiber, demonstrating the 'spooky action at a distance' predicted by quantum theory. Their results rule out nonlocal hidden variables theories and confirm quantum mechanics' predictions.

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 study changes conditions for Spanish brown bears

A recent study published in PNAS found that Spanish brown bears have genetic material from bears in other parts of Europe, challenging the idea of their isolation. The research, led by Anders Götherstam and Cristina Valdiosera, analyzed DNA sequences from prehistoric material and discovered a unexpected pattern.

A built-in strategy for transgene containment

Researchers at Zhejiang University developed a technology to create selectively terminable transgenic rice plants using RNAi cassette. This innovation allows for controlled cultivation and reduces the risk of transgene spreading, making it ideal for bioreactors and industrial applications.

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.

What should we do when esophageal perforation occurs?

The use of a rigid endoscope during removal of an impacted foreign body is an effective and safe treatment alternative for esophageal perforation. Non-operative management is not recommended in the presence of neck and mediastinum abscesses, necessitating surgical suture and drainage.

Killer stairs? Taking the elevator could be worse for your body

A new study published in JAMA found that a lack of regular physical activity can cause many diseases, with effects visible within two weeks. The researchers discovered that reducing daily physical activity led to higher glucose and fat levels in the blood, increasing the risk of chronic diseases.

Tell them where it hurts

A new technique called Scan and Solve uses 3-D data analysis to predict stress points in objects like Michelangelo's David and human bones. The approach could aid engineers in developing protections for heavily used components, such as ancient artifacts and implants.

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.

What effect does melatonin have in colitis?

Researchers found that melatonin administration reverses marked increases in bacterial translocation in postcolitis rats due to its anti-inflammatory and anti-apoptotic effects. The study suggests a potential therapeutic role for melatonin in managing colitis.

Satellites can help Arctic grazers survive killer winter storms

Researchers found a signature to detect rain-on-snow events in satellite microwave imagery, which can prevent mass starvation of native people's livestock. The method could provide a realistic chance of getting food to herds affected by the devastating weather event.

Reducing HD risk naturally post-menopause

Regular aerobic exercise significantly decreases oxidative stress levels and improves cardiovascular health in postmenopausal women. The study found that both HRT users and non-users benefited equally from the exercise program, reducing the risk of heart disease and stroke.

Celestron NexStar 8SE Computerized Telescope

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

Mekong schistosomiasis is more widespread than previously thought

A new study suggests that Schistosoma mekongi is more widely distributed in the Mekong River basin than previously believed, posing a potential threat to disease control efforts. The parasite's range may be broader than thought, with possible spread into Laos from Vietnam.

Research promising for cystic fibrosis

Researchers at University of Toronto have identified compounds that block the activity of a key protein (ExoS) in cystic fibrosis patients. These compounds may also serve as a model for future therapies against the HIV virus, according to a new study published in PLoS Genetics.

European membrane expertise to focus on new treatments for human diseases

A €15 million European Commission-funded project, EDICT, brings together leading experts in membrane proteins to find novel treatments for diseases such as diabetes and heart disease. The research aims to map the structure of proteins to identify compounds that could be developed as new treatments.

Stopping a receptor called 'nogo' boosts the synapses

Reducing the nogo receptor in the brain results in stronger brain signaling in mice, effectively boosting signal strength between synapses. The findings suggest that enhancing synaptic plasticity can partially counter the effects of an injury like stroke or traumatic brain injury.

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.

Gene 'knockout' floors tobacco carcinogen

Researchers at NC State University have developed a method to silence a gene that turns nicotine into a carcinogen, resulting in a six-fold decrease in N-nitrosonornicotine and a 50% overall reduction in TSNAs. This breakthrough could lead to tobacco products with reduced amounts of cancer-causing agents.

New choices bring wider range of women to family planning

A study published in Contraception reports that the Standard Days Method brings new women to family planning, with over half having never used a method before. The method's effectiveness and ease of use led to increased contraceptive use among participants.

Does stress damage the brain?

A study found reduced gray matter density in the pregenual anterior cingulate cortex of combat-exposed veterans with PTSD, but not their identical twins. The researchers suggest that stress exposure may cause this damage, leading to emotional consequences.

Spring training for parents?

A study by sport psychologists at the University of Washington found that providing parent workshops alongside coach training decreases performance anxiety and stress in young athletes. The research demonstrated the effectiveness of this combined approach in improving the youth sports experience.

Canine influenza was around as early as 1999

Researchers found evidence of canine influenza virus circulation in the greyhound population dating back to 1999. The discovery sheds light on a potential earlier introduction of the virus, which may have caused respiratory outbreaks at racing tracks.

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.

Lithium chloride slows onset of skeletal muscle disorder

A UC Irvine study finds that lithium chloride can slow the development of inclusion body myositis, a skeletal muscle disease affecting the elderly. The treatment reduced phospho-tau levels and motor function loss in mice, suggesting potential effectiveness for humans.

Scans spot hidden tumors in rare cancer syndrome

Researchers found unsuspected treatable tumors in Li-Fraumeni syndrome patients using full-body PET/CT scanning. The study suggests that periodic scans could catch more tumors at a curable stage, but further studies are needed to confirm the benefits and risks.

IU Health & Wellness: Research and insights from Indiana University

A recent study by Indiana University found that overweight but active men experienced a 24% improvement in vascular function after exercise, compared to a 32% decrease in inactive individuals. The research highlights the importance of daily physical activity in maintaining cardiovascular health, even if weight loss is not immediate.

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.

Arctic pollution's surprising history

A University of Utah study reveals that polar explorers saw an aerosol 'dry haze' in the late 1800s, likely generated by smelting and coal combustion. The haze was found to contain metallic particles, including vanadium and cobalt, consistent with heavy oil and coal combustion.

Uric acid may provide early clues to diabetic kidney disease

A study found that elevated uric acid levels can precede significant changes in urine albumin levels, suggesting a potential early sign of diabetic kidney disease. Higher uric acid levels are associated with lower kidney function in patients with type 1 diabetes.

Solving an avian scourge could also provide benefits to human health

Researchers at Arizona State University are developing a vaccine that targets both Avian Pathogenic E. coli (APEC) and Salmonella, two leading causes of poultry disease and food-borne illness. The project has the potential to provide benefits not only to the poultry industry but also to human health by preventing outbreaks of diseases ...

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.