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Science News Archive 2007


Page 91 of 203

July/August 2007 Annals of Family Medicine tip sheet

A four-year study of 1,869 women found that the Active Management of Risk in Pregnancy at Term approach resulted in lower cesarean delivery rates compared to traditional care. Preventive labor induction also appeared to lower adverse birth outcomes. The findings challenge current beliefs about labor induction and suggest a preventive a...

Hip and knee replacements rarely performed in patients over 100

A new study found that hip and knee replacements are rarely performed in patients over 100 due to concerns about short-term life expectancy. However, the research suggests that these procedures should not be denied solely based on age and that the benefits may outweigh the risks.

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.

Wider buffers are better

A US EPA study found that wider vegetated borders around streams are the most effective way to protect wetlands from nitrogen pollution. The study showed that wide buffers (>50 meters) removed more nitrogen than narrow buffers (0-25 meters), and that herbaceous and forest vegetation were more effective when wider.

MIT model could predict cells' response to drugs

A new MIT model can predict how cells will respond to targeted drug therapies, enabling better treatment choices for individual patients. The model is based on similarities in cell signaling pathways and could help test the effectiveness of drugs for various diseases.

Congenital diaphragmatic hernia

Research suggests that congenital diaphragmatic hernia does not disrupt pulmonary surfactant maturation in human fetuses, contrary to previous findings. The study provides new insights into the development of this complex condition.

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.

Zebrafish: It's not your parents' lab rat

A team of researchers at Rice University studied the gene LMO4 in zebrafish, discovering its role in regulating brain growth and development. They found that overexpression of the gene led to shrinkage of brain areas, while underexpression caused their enlargement.

Researchers think pink to produce 'green' solar energy

Researchers at Ohio State University have developed new pink dye-sensitized solar cells with half the efficiency of commercially available silicon-based solar cells, but at one quarter of the cost. The new materials use complex metals and novel particle shapes to boost electricity production.

Religious doctors no more likely to care for underserved patients

A large survey of US physicians found that religious doctors are slightly less likely to practice medicine among the underserved than secular colleagues. Despite this, many religious physicians describe their practice as a calling and report intangible rewards from serving vulnerable patients.

Immune response in melioidosis

Researchers found that only Toll-like receptor 2 (TLR2) played a significant role in the immune response to Burkholderia pseudomallei, a gram-negative bacterium causing melioidosis. This discovery suggests that inhibiting TLR2 may be a potential treatment strategy for this severe infection.

Apple iPhone 17 Pro

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

Lithium and bone healing

Researchers discovered a novel molecular pathway involved in bone healing and found that lithium can activate it, but only when treatment is given after the fracture occurs. The study showed accelerated bone healing in mice with activated '-catenin signaling pathway.

Reading ability protects brain from lead exposure

A study published in Neurology found that reading ability is a protective factor against the negative effects of lead exposure on the brain. Workers with higher reading levels showed less cognitive decline compared to those with lower reading abilities.

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.

Comparatively low levels of air pollution boost early death risk

A study in Great Britain found that even low levels of air pollution boost the chances of an early death, especially from respiratory diseases. The research, which spanned over 16 years, revealed strong links between black smoke and sulphur dioxide with increased risk of mortality.

Negative effects of plastic's additive blocked by nutrient supplements

A new study found that pregnant mothers taking folic acid or genistein supplements can protect their offspring from the negative effects of BPA, a common chemical used in plastics. The study showed that even low levels of BPA exposure can cause epigenetic changes in offspring, leading to increased disease susceptibility.

Meta Quest 3 512GB

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

Research links genetic mutations to lupus

A recent study published in Nature Genetics has found a genetic mutation linked to systemic lupus erythematosus, a complex autoimmune disease. The discovery identifies variations of the TREX1 gene as a risk factor for developing lupus, shedding new light on its causes and potentially paving the way for new treatments.

Genetic finding sheds light on diseases causing blood vessel breakdown

Scientists have linked a genetic disorder to mutations in the TREX1 gene, which may also be relevant to common health problems like diabetes and vascular dementia. The discovery could accelerate efforts to understand and treat retinal vasculopathy with cerebral leukodystrophy, a rare condition that causes vision loss and mini-strokes.

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.

System to analyze beating heart stem cells could lead to heart attack treatments

Researchers are developing a new system to analyze beating heart stem cells, which could lead to more detailed information on their electrical activity and potentially facilitate their use in regenerating damaged hearts. The team aims to engineer a novel system for real-time analysis of cardiomyocytes during early development.

Graphene sniffs out dangerous molecules

Researchers have created graphene-based devices that can detect individual molecules of a toxic gas, offering potential applications for detecting hidden explosives and deadly carbon monoxide. The discovery was made by Dr Kostya Novoselov and Professor Andre Geim at the University of Manchester.

Strains of laboratory mice more varied than previously thought

Researchers found that the genetic variation in laboratory mice is vastly greater than previously thought, with 8.3 million variations described. The pedigrees of the 15 mouse strains studied differ from each other to a far greater degree than previously assumed.

Work-family stress studied among immigrant Latinos

A recent study found that Latino immigrants working in low-wage jobs report infrequent work-family conflict due to their collective culture's emphasis on work as a means to ensure family well-being. In contrast, women from the same background experience higher levels of conflict due to societal expectations of their caregiving roles.

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.

Risk genes for multiple sclerosis uncovered

A comprehensive study has identified new genetic risk factors for multiple sclerosis, suggesting a link to autoimmune diseases like type 1 diabetes and rheumatoid arthritis. The study analyzed genomic data from over 12,000 people and confirmed the involvement of immune system genes in MS.

First new multiple sclerosis gene found in 30 years

Researchers at Duke University Medical Center discovered a novel gene associated with increased susceptibility to multiple sclerosis, which increases risk by 30%. The gene variant affects the function of interleukin-7 receptor alpha, guiding immune system cell development and growth.

Prevent smoking to reduce risk of erectile dysfunction

A Tulane University study published in the American Journal of Epidemiology found a significant association between cigarette smoking and erectile dysfunction. The research suggests that quitting smoking may help reduce the risk of erectile dysfunction, with estimated 22.7% of cases potentially attributable to cigarette smoking.

Fluke 87V Industrial Digital Multimeter

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

Wild weather forces farmers to adapt

Scientists propose new cropping strategies for a variable climate, exploring crop sequencing decisions based on weather patterns and management goals. The study's findings highlight the importance of understanding short-term crop sequencing effects on agronomic and environmental attributes.

Prenatal stress keeps infants, toddlers up at night, study says

Anxious or depressed mothers-to-be are at increased risk of having children who experience sleep problems in infancy and toddlerhood. Babies born to mothers classified as anxious or depressed during pregnancy exhibit more sleep problems, even after controlling for other factors.

Sexual problems of long-term cancer survivors merit more attention

A study of long-term female cancer survivors found that they valued sexuality but were not adequately prepared for the sexual issues introduced by their cancer or treatment. Discussing sexual consequences with physicians matters greatly to these patients, yet infrequent conversations occur.

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.

A new brake on cellular energy production discovered

Scientists identify MTERF3 as a mitochondrial factor that inhibits mtDNA expression and slows down cellular energy production. This discovery may lead to new ways of treating diseases related to impaired mitochondrial function.

Two bacteria better than one in cellulose-fed fuel cell

A team of Penn State researchers successfully created a microbial fuel cell that consumes cellulose and produces electricity by pairing two types of bacteria. The fuel cell achieves a maximum power density of 150 milliwatts per square meter, which is lower than current designs but shows promise for future improvements.

Diabetes drugs increase risk of heart failure, research shows

A class of diabetes drugs increases the risk of heart failure in patients with type 2 diabetes, according to a new analysis of over 78,000 patients. The risk is estimated to be up to 100% higher in patients taking thiazolinediones, and may be triggered by fluid retention caused by the drugs.

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.

Trials underway for 'essential' new TB vaccine

Clinical trials are underway for a new TB vaccine developed by Dr Helen McShane, which could lead to significant improvements in TB control and treatment. The vaccine has shown promising results in boosting the immune response against TB and has the potential to prevent severe forms of the disease.

St. Jude study solves mystery of mammalian ears

Researchers at St. Jude Children's Research Hospital have solved the long-standing mystery of how mammalian ears amplify sound, concluding that movement of cilia atop hair cells dominates response in non-mammals but somatic motility drives amplification in mammals.

Can the tonsils influence oral HIV transmission?

Research suggests that tonsils may facilitate oral HIV transmission through their unique gene expression profiles, which include higher levels of immune function-related genes and lower levels of antiviral proteins. This makes the tonsil tissue more permeable to pathogens, increasing its vulnerability to infection.

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.

Hidden order found in a quantum spin liquid

Researchers have discovered a hidden magnetic order in a ceramic material that extends over chains of 100 atoms, with potential applications in quantum computing and information processing. The team found that the magnetic excitations can propagate long distances at low temperatures, but can be disrupted by defects or heat.

Colorectal cancer research surges at Vanderbilt-Ingram Cancer Center

The Vanderbilt-Ingram Cancer Center has received significant funding from the National Cancer Institute to advance innovative colorectal cancer research. The center will focus on developing diagnostic and therapeutic approaches using high-throughput screening strategies, aiming to identify new treatments for this deadly disease.

Survey finds many Americans believe unsubstantiated claims about cancer

A nationwide survey found that nearly seven in ten Americans believe the risk of dying from cancer is increasing, despite clear evidence to the contrary. The study also revealed associations between sociodemographic variables, such as gender and education level, and the likelihood of believing false statements about cancer risks.

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.

Researchers create search engine to hunt molecules online

ChemxSeer is a search engine designed specifically for chemical formulae, allowing scientists to find relevant research on CH4 or methane without filtering out results about Channel 4. The tool identifies related chemicals with different formula representations and substructures, providing more accurate search results.

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.

Presence of wolves allows aspen recovery in Yellowstone

A new study published in Biological Conservation shows that wolves are allowing aspen trees to recover in Yellowstone National Park for the first time in over 50 years. The presence of wolves is altering elk behavior, causing them to avoid browsing in certain areas where they feel vulnerable, leading to a significant reduction in elk b...