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Science News Archive 2009


Page 178 of 277

Breakthrough in the treatment of bacterial meningitis

Researchers at the University of Nottingham have identified a key mechanism behind bacterial meningitis, offering new avenues for treatment and vaccine development. The discovery could save hundreds of children's lives and provide broad protection against this deadly disease.

Embryo's heartbeat drives blood stem cell formation

Researchers have discovered that a beating heart and blood flow are necessary for the development of the blood system, which relies on mechanical stresses to cue its formation. Compounds that modulate blood flow had a potent impact on the expression of a master regulator of blood formation, known as Runx1.

MIT reels in RNA surprise with microbial ocean catch

A new method of obtaining marine microbe samples has yielded an unexpected discovery: the presence of many varieties of small RNAs, which can act as switches to regulate gene expression. This finding may allow scientists to learn on a broad scale how microbial communities respond to environmental stimuli.

Scientists identify gene in breast cancer pathway

Researchers found that the gene ZBP1 is silenced in metastasizing breast cancer cells due to a methyl group attachment, leading to increased cell migration and proliferation. The study suggests potential drug targets for preventing metastasis and may help predict breast tumor outcomes by identifying signs of ZBP1 silencing.

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.

A feasible, simple and convenient model for study of rectal carcinoma

A new rabbit rectal VX2 carcinoma model has been successfully established, mimicking human rectal carcinoma in pathological representation, tumor development, and metastasis. The model's ease of establishment, short growth period, and high stability make it an ideal major animal model for studying rectal carcinoma.

Placement of dental implants results in minimal bone loss

A recent study published in the Journal of Periodontology found that marginal bone remodeling occurs between implant placement and prosthesis placement. After a five-year follow-up, minimal mean bone change was observed, indicating dental implants can be an effective tooth replacement option.

Apple iPhone 17 Pro

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

Farnesoid X receptor regulates cystathionase

The Farnesoid X receptor (FXR) regulates the expression of cystathionase, an enzyme involved in hydrogen sulfide production. FXR agonists may correct for altered endogenous vasodilator generation in chronic liver diseases.

Any way you slice it, warming climate is affecting Cascades snowpack

New research reveals a significant decline in Cascades snowpack due to warming climate, with potential implications for drinking water supplies, fisheries, irrigation, and hydropower. The study used multiple methods to analyze decades-long records of water content in the central Puget Sound basin.

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.

Predators ignore peculiar prey

Researchers found that birds target salamanders with dominant traits more frequently, even when the ratio of these traits changes. This suggests that predators prioritize common prey forms, allowing unusual traits to persist.

Enriched environment improves wound healing in rats

Researchers found that giving rats living in isolation the opportunity to build nests led to faster and more complete healing of burn injuries than isolation-reared rats without nest-building materials. This effect was associated with altered gene expression in stress-associated brain structures.

Early Alzheimer's diagnosis offers large social, fiscal benefits

A new study suggests that early diagnosis and treatment of Alzheimer's disease can lead to significant cost savings and improved quality of life for patients and their families. The research estimates that earlier intervention could save billions of dollars in long-term care costs, while also providing positive social benefits.

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.

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.

In retinal disease, sight may depend on second sites

A team of scientists discovered a genetic modifier, A229T, that increases the risk of retinal degeneration and blindness in patients with ciliary diseases. The study found that this change affects protein interactions critical for retinal function, leading to progressive vision loss.

Study outlines how to succeed with refillable packaging

A new study outlines essential elements for successful refillable packaging, including affordability without sacrificing quality. Consumer surveys revealed that environmentally-friendly concerns drive usage, while businesses see it as a way to demonstrate responsibility and reduce costs.

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.

A 'light bulb' moment for people with dementia

Researchers test blue-white lamp prototypes to regulate sleep-wake cycles in people with dementia. The study shows promise in raising activity levels during daytime hours and increasing sleep at nighttime.

UCI awarded $45 million for infectious disease research

The University of California, Irvine has been awarded a $45 million grant over five years to conduct infectious disease research. The grant is the campus's largest ever and will focus on improving detection, treatment, and vaccine development for bioterrorism agents and emerging infections.

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.

Enriched environment improves wound healing in rats

Researchers found that providing rats with nest-building materials significantly improved wound healing and altered gene expression in the brain, leading to faster healing rates and reduced stress effects. The study suggests a novel approach to improving physical health through environmental stimulation.

22-year study finds adults aren't active enough

A 22-year longitudinal study found that nearly 56% of Canadian adults are consistently inactive, with only 12% remaining active in each subsequent survey. Socio-economic factors, such as education and income level, significantly influence physical activity levels among participants.

A genome may reduce your carbon footprint

A new study published in The Plant Genome suggests that acquiring cheap genome sequence data can improve the quality of feedstocks used to create biofuels, potentially reducing carbon footprint. This could lead to more sustainable high-yield production with minimal inputs.

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.

Body movements can influence problem solving, researchers report

A new study found that body movements can aid in problem-solving, with participants who swung their arms more likely to solve a complex problem. The study's findings suggest that the brain uses bodily cues to help understand and solve problems, even when the individual is not consciously aware of it.

Climate change driving Michigan mammals north

A new study reveals that Michigan mammal species are rapidly expanding their ranges northward in response to climate change. This shift is replacing historically northern species with southern equivalents, which could have significant ecological implications.

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.

Now or later? Consumer product evaluation depends on purchase timing

A new study finds that consumers evaluate products differently based on the timing of their purchase. When considering future use, desirability is a primary factor, while feasibility takes precedence for immediate use. Reevaluating a product later can also influence judgments, with future-considered products being viewed more favorably.

When to get your bone density measured -- that is the question

A new study provides clear protocols for clinicians to follow, updating fracture risk algorithms and creating simple tables to guide doctors. The findings suggest that repeat bone density measurements can help prognosis of fracture in patients at risk due to age and other factors.

Drinking water watched by Queensland's seventh sense

A network of 120 sensors is monitoring Lake Wivenhoe's environmental conditions in real-time, enabling early detection of contaminants and high rainfall events. The system uses CSIRO's FLECK smart wireless sensor technology to collect detailed data on water quality, event flows, and weather patterns.

Race to preserve the world's oldest submerged town

Archaeologists are racing to preserve the ancient underwater town of Pavlopetri, off southern Laconia in Greece. The site, dating back to 2800 BC, offers major insights into Mycenaean society and its workings.

$24.4 million for research into future health care solutions

The Engineering and Physical Sciences Research Council (EPSRC) has awarded £16.5m in grants to develop new techniques for screening and treating major public health issues such as cancer and stroke. The projects aim to create affordable home-based stroke detectors and cancer screening devices.

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.

miR-196a promotes the metastases of tumors

The study found that miR-196a promotes the metastasis of tumors by activating oncogenic pathways, leading to increased lung metastases in animal models. Additionally, high levels of miR-196a were associated with poor patient survival in pancreatic cancer patients.

Biomass as a source of raw materials

Scientists develop catalytic process to convert phenolic components of bio-oil directly into cycloalkanes and methanol. The 'one-pot' reaction uses palladium metal on a carbon support and phosphoric acid as a proton source.

Monitoring water through a snake's eyes

A new system developed by Prof. Abraham Katzir can detect contaminants in water supply in real time, providing early warning to authorities. The system uses special fibers that can distinguish between pure and contaminated water using the invisible infrared spectrum.

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.

Opportunity costs: Remind consumers about savings

A new study in the Journal of Consumer Research found that drawing consumers' attention to opportunity costs leads to different purchasing decisions. By explicitly naming opportunity costs, consumers become more price sensitive and tend to choose cheaper options.

Hyperferritinemia is another surrogate marker of advanced liver disease

A study investigated the link between high ferritin levels and steatosis in a non-obese cohort of non-alcoholic patients, finding hyperferritinemia as a surrogate marker of advanced liver disease. The research suggests that high ferritin levels are associated with low platelet count, steatosis and clinical relevance.

Pandemic warning system keys on 'human factors'

Researchers propose a new system to warn of impending pandemics by monitoring subtle signals in human behavior, such as increased flu-related medication purchases. This approach aims to overcome the traditional challenge of knowing when events leading to pandemics begin, allowing for proactive measures to be taken.

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.

Interventional radiology: From sidelines to mainstream for patients

The American College of Radiology has reaffirmed its support for clinical patient management by vascular and interventional radiologists. These specialists provide minimally invasive treatment options with less risk, pain, and recovery time compared to open surgery. With this extension, interventional radiologists are formalizing their...

New H1N1 flu resource center available on thelancet.com

The Lancet has partnered with Elsevier to launch a new H1N1 Flu Resource Centre, aggregating infectious disease and public health information from across its content. The centre provides timely and accurate information on the prevention, detection, diagnosis, and treatment of the influenza A H1N1 virus.

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.

How to build a bigger brain

A UCLA study found that meditation increases gray matter in areas of the brain regulating emotions, leading to improved emotional stability and mindful behavior. Long-term meditators showed significantly larger volumes in regions such as the hippocampus and orbito-frontal cortex.

p90RSK: A new therapeutic target for liver fibrosis?

Scientists have discovered that p90RSK plays a critical role in activating hepatic stellate cells, which produce excessive collagen leading to liver fibrosis. Downregulating p90RSK inhibits HSC proliferation and collagen expression, providing a new therapeutic target for treating liver fibrosis.