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Science News Archive 2011


Page 253 of 311

Natural sequence farming

A study published in the International Journal of Water suggests that improving land management and farming practices in Australia could mitigate global climate change. Natural Sequence Farming, a technique developed by Peter Andrews and Duane Norris, mimics the once-efficient functions of the Australian landscape to improve soil healt...

Current projections greatly underestimate impact of Haitian cholera epidemic

A mathematical model based on current knowledge of the disease predicts that without intervention, 779,000 new cases and 11,000 deaths would result from the epidemic. The model also simulates the effects of increased access to clean water, vaccination, and antibiotic treatment, which could prevent up to 170,000 cases and 3,400 deaths.

Prevalence of heavy smokers in US decreases

The prevalence of heavy smokers in the US decreased significantly between 1965 and 2007, with California showing a greater decline. The study found that moderate- and high-intensity smoking rates declined more rapidly in California compared to the rest of the US.

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.

New laser technique opens doors for drug discovery

A new laser technique, called backscattering interferometry (BSI), measures the binding force between proteins and biological molecules in a natural environment. This technology has potential applications in drug discovery, particularly for targeting membrane proteins.

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.

Inflammation behind heart valve disease

Researchers from Karolinska Institutet have discovered that specific inflammatory substances called leukotrienes play a crucial role in the development of aortic stenosis. The study found that anti-inflammatory medication may be a promising new treatment for the disease, which affects millions of people worldwide.

Study shows how chickens keep their cool

A complex genetic mutation triggered by a vitamin A-derived substance caused the development of bald necks in Transylvanian naked neck chickens. The mutation led to enhanced production of an inhibitory protein called BMP12, resulting in an outstanding bald neck.

Managing post-stroke depression improves physical functioning

Researchers found that successfully treating post-stroke depression leads to significant improvements in functional capabilities, enabling patients to return to work and enjoy leisure activities. This study highlights the importance of screening for and managing depression in stroke patients to restore lost function.

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.

Treatment breakthrough for rare disease linked to diabetes

Researchers at University of Manchester discover new treatments for congenital hyperinsulinism by correcting gene defects in insulin-producing cells. The breakthrough has the potential to reverse cellular defects and pave way for new drugs, offering real hope for devastating condition.

Why Henry Higgins could tell his barrow girl from his fair lady

Research suggests that expert phoneticians' brains have distinct structures and connectivity patterns, correlating with training and innate abilities. The study found that areas responsible for processing speech sounds are shaped before birth, which may influence career choices.

Apple iPhone 17 Pro

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

Fundamental discovery could lead to better memory chips

Researchers at the University of Michigan have designed a ferroelectric material system that spontaneously forms small nano-size spirals, reducing power needed for polarization switching. This breakthrough has the potential to create memory devices with faster write speeds and longer lifetimes than current technologies.

Could there be more than lunch lurking on your retainer?

Researchers found potentially pathogenic microbes on at least 50% of orthodontic retainers, with Candida and Staphylococcus species commonly present. Biofilms on the retainer can be difficult to remove and have high levels of resistance to antimicrobials.

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.

The 5 hospital factors that affect heart attack survival

A new Yale University study has identified five key factors that influence mortality rates among patients treated for heart attacks in hospitals across the country. The research found that high-performing hospitals had strong organizational values, effective communication and coordination, and a culture of problem-solving and learning.

Detection of early gastric cancer using hydro-stomach CT

A study published in the World Journal of Gastroenterology found that hydro-stomach CT imaging is not a reliable tool for detecting early gastric cancer. The detection rate was unsatisfactory, with size and depth of invasion being independent factors affecting visibility.

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.

An inside look at how the elite control HIV

Research reveals T cells from elite controllers are resistant to HIV infection due to selective upregulation of p21, an enzyme inhibitor. Blocking p21 increases viral gene expression, highlighting potential treatment strategies for vulnerable patients.

Fluke 87V Industrial Digital Multimeter

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

A seismograph for ancient earthquakes

A new tool, developed by Prof. Shmuel Marco, can analyze wave patterns in sediment to understand past earthquake intensity. The 'fossil seismograph' helps geophysicists predict future earthquakes in areas with bodies of water.

Virtual assistance is confirmed as an effective tool in monitoring HIV patients

A telemedicine program called Hospital VIHrtual has been shown to provide comprehensive control over HIV-infected patients in medical, pharmaceutical, psychological, and quality of life aspects. The virtual hospital allows for efficient management of stable HIV patients, reducing costs and time spent on travel and waiting for visits.

Tumor metastasis with a twist

Researchers at UCSD School of Medicine identified Twist1's role in promoting invadopodia formation and matrix degradation in tumor cells. This process facilitates the spread of cancer to surrounding tissues and other parts of the body.

Neuro signals study gives new insight into brain disorders

Researchers at the University of Edinburgh identified a critical protein that maintains nerve fibre health, potentially improving understanding of neurodegenerative disorders. The discovery could lead to new insights into conditions like epilepsy, dementia, and stroke by unraveling the complexities of brain function.

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.

Taking tamoxifen to prevent breast cancer can save lives and money

A study published in Cancer suggests that tamoxifen can significantly reduce breast cancer risk in post-menopausal women under 55 with a high risk of developing the disease. The medication not only saves lives but also reduces medical costs, preventing 29 breast cancer cases and 9 deaths per 1,000 treated women.

Study helps explain how pathogenic E. coli bacterium causes illness

Scientists at NIAID discovered how E. coli O157:H7 infects humans by altering the host's immune responses, allowing it to evade elimination and prolong survival. This mechanism could be relevant to other pathogens involved in foodborne diseases, such as Shigella and Salmonella.

Study seeks to halt progression of diabetic nephropathy

A four-year study aims to develop drugs that inhibit the degradation of protective metabolites in the kidneys, which are damaged by diabetes. Researchers hope these inhibitors could halt the progression of diabetic nephropathy and slow the rise of end-stage renal disease.

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.

Combining 2 peptide inhibitors might block tumor growth

Researchers developed two peptide inhibitors targeting HER-2 and VEGF pathways, showing additive benefits in reducing tumor burdens with minimal side effects. The strategy aims to overcome acquired resistance and provide clinical benefit in several types of cancer.

Osteoblasts are bone idle without Frizzled-9

Researchers found that Frizzled-9 upregulates during osteoblast differentiation and is essential for bone mineralization. Mice lacking Fzd9 have fragile bones due to low rates of bone formation, highlighting its potential as a drug target for treating osteoporosis.

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.

Mini disks for data storage

Researchers created mini magnetic disks with slanted edges, which favor the formation of tiny magnetic vortices. This allows for efficient data processing and reduced power consumption compared to traditional memory storage systems.

Nauset Marsh Estuary red tide study begins next week

A three-year study on the Nauset Marsh Estuary's red tide problem begins next week. The researchers will collect water samples and analyze them for concentrations of toxic algae to better understand environmental factors influencing the incidence of red tides.

Silicon spin transistors heat up and spins last longer

University of Utah researchers built spintronic transistors that aligned magnetic spins of electrons for a record period of time at room temperature. The achievement is a significant step towards the development of faster and more power-efficient spintronic devices using silicon chips.

Newer doesn't mean better when it comes to type 2 diabetes drugs

A new Johns Hopkins study suggests that older, less expensive medications like metformin can be just as effective in controlling type 2 diabetes as newer, more expensive options. The research also found that metformin was associated with fewer side effects, including weight gain and cholesterol level increases.

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.

Heavy drinking not linked to common type of gullet cancer

Research from the BEACON Consortium found no association between heavy drinking and esophageal adenocarcinoma, contrasting with a well-established link to squamous cell carcinoma. Light drinkers had lower risk of these cancers than non-drinkers.

Brown biologist wins NSF's Waterman Award

Casey Dunn, a Brown University biologist, has been awarded the National Science Foundation's Alan T. Waterman Award for his groundbreaking research on the origins of diversity in life. The award recognizes his use of genomic and computational techniques to study complex multicellular organisms, including humans.

Novel strategies target health care-associated infections

Researchers at Washington University School of Medicine are developing new approaches to reduce health-care-associated infections. Investigating the use of probiotics to prevent pneumonia in ventilated patients and evaluating the effectiveness of a new antibiotic in preventing Clostridium difficile infection are two key areas of focus.

Water for an integrative climate paradigm

A new integrative climate model recognizes the significance of human-induced causes, such as deforestation and agro-industry, in addition to carbon dioxide emissions. This approach aims to achieve a more effective and socially democratic climate policy, responsive to local conditions.

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.

Gender stereotypes about math develop as early as second grade

Researchers found that American children as young as second grade adopt the cultural stereotype that math is for boys, leading to a lower association with math among girls. Parental and educational practices can help broaden interests and aspirations in elementary school.

New mouse model explains common pediatric brain tumor

A new mouse model has been developed to study pilocytic astrocytoma (PA), a common pediatric brain tumor. The model uses expression of a mutant BRAF kinase domain in mice and shows that this is sufficient to induce the formation of PA, closely resembling human disease.

Impact of a bad job on mental health as harmful as no job at all

A study of over 7,000 Australians found that poor-quality jobs have a significant impact on mental health, often worse than unemployment. Those in the poorest quality jobs experienced the sharpest decline in mental health, with each additional adverse condition lowering their score.