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Science News Archive 2011 - Page 253


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...

SourceInderscience Publishers·JournalInternational Journal of Water·DateMar 15, 2011

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.

SourceMassachusetts General Hospital·JournalThe Lancet·DateMar 15, 2011

Side effects of prophylactic percutaneous endoscopic gastrostomy placement

A study found that nearly half of head and neck cancer patients who received prophylactic percutaneous endoscopic gastrostomy (PEG) tubes never used them. The study suggests that PEG placement prior to therapy may not be necessary and could impact cost-effectiveness and quality of life.

SourceWorld Journal of Gastroenterology·JournalWorld Journal of Gastroenterology·DateMar 15, 2011
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.

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.

SourceJAMA Network·JournalJAMA·DateMar 15, 2011

UCSF study predicts cholera epidemic in Haiti will far exceed UN projections

A new UCSF study forecasts a far worse-than-expected cholera epidemic in Haiti, predicting nearly twice the number of cases as the United Nations' initial projections. The study suggests that extending access to antibiotics could save thousands of lives and prevent widespread fatalities.

SourceUniversity of California - San Francisco·JournalThe Lancet·DateMar 15, 2011

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.

SourceVanderbilt University·JournalNature Biotechnology·DateMar 15, 2011
Apple iPhone 17 Pro

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

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.

SourceKarolinska Institutet·JournalCirculation·DateMar 15, 2011

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.

SourcePLOS·JournalPLOS Biology·DateMar 15, 2011

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.

SourceIndiana University School of Medicine·JournalNeurology·DateMar 15, 2011
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.

Official projections have substantially underestimated the cholera epidemic in Haiti but combining available interventions could prevent thousands of deaths

A new study predicts nearly 800,000 cases and 11,100 deaths in Haiti due to cholera, significantly underestimating official projections. Combining available disease control strategies such as clean water access, oral vaccination, and expanded antibiotic use could prevent thousands of deaths.

SourceThe Lancet_DELETED·JournalThe Lancet·DateMar 15, 2011

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.

SourceUniversity of Manchester·JournalDiabetes·DateMar 15, 2011
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.

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.

SourceUniversity of Michigan·JournalNano Letters·DateMar 15, 2011
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.

Finding of long-sought drug target structure may expedite drug discovery

Scientists have solved the three-dimensional structure of a key biological receptor, enabling chemists to design molecules for experimental drugs. This finding has the potential to expedite drug discovery in various areas, including arthritis, respiratory disorders, and wound healing.

SourceNIH/National Institute of Diabetes and Digestive and Kidney Diseases·JournalScience·DateMar 15, 2011

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.

SourceWiley·JournalLetters in Applied Microbiology·DateMar 15, 2011

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.

SourceYale University·JournalAnnals of Internal Medicine·DateMar 15, 2011

Apnea may be cause for awakening and voiding for those with enlarged prostates report Ben-Gurion U.

Research suggests that over half of patients with benign prostate enlargement may have Obstructive Sleep Apnea, leading to night awakenings and urination. This study highlights the importance of considering sleep disorders in diagnosing nocturia, a common symptom of BPE.

SourceAmerican Associates, Ben-Gurion University of the Negev·JournalThe Journal of the American Board of Family Medicine·DateMar 15, 2011
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.

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.

SourceWorld Journal of Gastroenterology·JournalWorld Journal of Gastroenterology·DateMar 15, 2011

Maquipucuna cloud forest in Ecuador yields new species of yeast

Scientists have discovered a new species of yeast, Saturnispora quitensis, in the Maquipucuna cloud forest in Ecuador. The yeast produces characteristic Saturn-shaped spores and has potential for fermentation of plant material to produce bio-energy.

SourceNorwich BioScience Institutes·JournalINTERNATIONAL JOURNAL OF SYSTEMATIC AND EVOLUTIONARY MICROBIOLOGY·DateMar 15, 2011

Early success of anti-HIV preventive oral drug regimen is promising, but questions remain

A new oral HIV preventive drug regimen has shown promising results with a near 50% reduction in HIV incidence in high-risk individuals. However, more research is necessary to address ongoing monitoring of side effects, adherence and counseling needs, physician attitudes, and the effectiveness of intermittent dosing.

SourceMary Ann Liebert, Inc./Genetic Engineering News·JournalAIDS Patient Care and STDs·DateMar 14, 2011
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.

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.

SourceJCI Journals·JournalJournal of Clinical Investigation·DateMar 14, 2011

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.

SourceAmerican Friends of Tel Aviv University·JournalGeology·DateMar 14, 2011
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.

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.

SourceIDIBAPS - Institut d'Investigacions Biomèdiques August Pi i Sunyer·JournalPLOS ONE·DateMar 14, 2011

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.

SourceUniversity of California - San Diego·JournalCancer Cell·DateMar 14, 2011

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.

SourceUniversity of Edinburgh·JournalNeuron·DateMar 14, 2011

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.

SourceWiley·JournalCancer·DateMar 14, 2011

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.

SourceNIH/National Institute of Allergy and Infectious Diseases·JournalNature Immunology·DateMar 14, 2011
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.

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.

SourceMedical College of Georgia at Augusta University·DateMar 14, 2011
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.

SourceOhio State University Wexner Medical Center·JournalJournal of Biological Chemistry·DateMar 14, 2011

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.

SourceRockefeller University Press·JournalJournal of Cell Biology·DateMar 14, 2011

Use of $4 generic drug programs could save society billions of dollars, study shows

A University of Pittsburgh study found that if eligible patients filled prescriptions through a $4 generic drug program, the societal savings could amount to nearly $6 billion. The study examined a large group of people who used generic medications or their brand-name counterparts and found that less than 6% used the discount programs.

SourceUniversity of Pittsburgh Schools of the Health Sciences·JournalArchives of Internal Medicine·DateMar 14, 2011

'Fly tree of life' mapped, adds big branch of evolutionary knowledge

Scientists have created a comprehensive framework for understanding fly evolution, revealing surprising relationships between species. The study provides new insights into the origins and diversification of flies, which comprise over 10% of all life on Earth.

SourceNorth Carolina State University·JournalProceedings of the National Academy of Sciences·DateMar 14, 2011
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.

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.

SourceHelmholtz Association·JournalAdvanced Functional Materials·DateMar 14, 2011

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.

SourceU.S. Geological Survey·DateMar 14, 2011

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.

SourceUniversity of Utah·JournalApplied Physics Letters·DateMar 14, 2011

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.

SourceJohns Hopkins Medicine·JournalAnnals of Internal Medicine·DateMar 14, 2011
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.

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.

SourceBrown University·DateMar 14, 2011

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.

SourceWashU Medicine·DateMar 14, 2011
Meta Quest 3 512GB

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

Omega-3 fatty acid intake linked with reduced risk of age-related macular degeneration in women

A large population study found that regular consumption of fish and omega-3 fatty acids was associated with a significantly reduced risk of developing age-related macular degeneration in women. The study, published in Archives of Ophthalmology, found that higher intake of DHA and EPA was linked to a 38% lower risk of the condition.

SourceJAMA Network·JournalArchives of Ophthalmology·DateMar 14, 2011

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.

SourceInderscience Publishers·JournalInternational Journal of Water·DateMar 14, 2011

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.

SourceUniversity of Washington·JournalChild Development·DateMar 14, 2011

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.

SourceJCI Journals·JournalJournal of Clinical Investigation·DateMar 14, 2011
Sky-Watcher EQ6-R Pro Equatorial Mount

Sky-Watcher EQ6-R Pro Equatorial Mount provides precise tracking capacity for deep-sky imaging rigs during long astrophotography sessions.

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.

SourceBMJ Group·JournalOccupational and Environmental Medicine·DateMar 14, 2011