Bluesky Facebook Reddit Email

Science News Archive March 2013


Page 24 of 30

Patient reports via telemedicine result in lower blood pressure

Using a telemedicine system to engage people in underserved urban communities resulted in significant reductions in systolic blood pressure. Nearly all study participants lowered their blood pressure, with those using the interactive reporting system achieving an average drop of 19 mmHg compared to 12 mmHg for non-telemedicine users.

Drugs targeting blood vessels may be candidates for treating Alzheimer's

Researchers at University of British Columbia have found that blood vessels in the brain can be normalized with amyloid beta immunization, reducing plaque build-up and brain capillary growth. This discovery suggests that drugs targeting blood vessels could be effective in treating Alzheimer's disease.

Apple iPhone 17 Pro

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

Duckweed as a cost-competitive raw material for biofuel production

Researchers propose duckweed as a sustainable alternative for producing gasoline, diesel, and jet fuel due to its fast growth rate and ability to thrive in wastewater. The study suggests that small-scale duckweed refineries can produce cost-competitive fuel when oil prices reach $100 per barrel.

Higher heart attack rates continue 6 years after Katrina

A study found that six years after Hurricane Katrina, New Orleans residents experienced a three-fold increased risk of heart attack. Psychosocial factors, including chronic stress and anxiety disorders, played a significant role in this increase.

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 software could help cut hospital admissions

A new software tool, COCPIT, will aid healthcare professionals in identifying at-risk patients and investigating data quality issues. By analyzing patient journeys and electronic health records, the tool aims to improve patient care and public health by reducing hospital admissions for conditions like strokes.

Program that pays for weight loss seems to pay off

A study found that modest financial incentives significantly increased sustained participation in a weight-loss program and long-term maintenance of weight loss. Participants who received financial rewards lost more weight (9.08 pounds) compared to those without incentives (2.34 pounds).

Nanoparticles loaded with bee venom kill HIV

Researchers at Washington University School of Medicine have developed nanoparticles carrying melittin, a toxin found in bee venom, that can destroy human immunodeficiency virus (HIV) while leaving surrounding cells unharmed. This finding offers an important step towards developing a vaginal gel that may prevent the spread of HIV.

New form of animal communication discovered

Researchers at Case Western Reserve University School of Medicine found that rats use sniffing behavior to signal social hierarchy and prevent aggressive behavior. This discovery may help understand how neurological disorders impact social behaviors.

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.

Hubble finds birth certificate of oldest known star

Astronomers used NASA's Hubble Space Telescope to determine the age of the oldest known star, HD 140283, which could be as old as 14.5 billion years. The new age estimate reduces measurement uncertainty, overlapping with the universe's age, and provides a precise calculation of the star's intrinsic brightness.

Genomic screening for improved public health

Researchers recommend exploring genetic testing to identify people at high risk for preventable diseases, with the technology becoming increasingly accessible and affordable. A carefully selected panel of genetic tests could avert disastrous health consequences in individuals at high risk.

NASA's TRMM satellite sees Tropical Cyclone 19P form

Heavy rainfall rates of 2 inches/50 mm per hour were observed around the center of circulation, with powerful thunderstorms reaching heights of 9.3 miles (15 kilometers). The tropical storm strengthened and moved east-northeast at 11 knots (12.6 mph/20.3 kph), affecting New Caledonia by March 11.

New flex-grid system prevents optical network 'traffic jams'

Researchers develop a new dynamic network management system that can redirect traffic-congesting connections in real-time, improving network efficiency. The system combines OpenFlow and PCE technology to provide efficient solution for operating transport networks.

Celestron NexStar 8SE Computerized Telescope

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

Land-use zoning may be able to reduce crime in urban areas, study finds

A new RAND Corporation study found that city blocks with both residential and commercial zoning purposes experienced less crime than those zoned primarily for commercial purposes. Researchers also discovered that crime rates dropped by an average of 7% when neighborhoods underwent changes in zoning, mostly towards residential uses.

Study examines global management of anemia in children on dialysis

A global study found that children on dialysis with poor response to anemia medications are linked to inflammation, fluid retention, and hyperparathyroidism. High doses of anemia medications also increase the risk of premature death. The study provided valuable insights into anemia control in pediatric patients.

Vets' PTSD affects mental and physical health of partners

A study by the University of Utah reveals that female partners of vets with PTSD suffer from significant increases in blood pressure, anger, and emotional distress. The study suggests these partners may be at similar or greater risk for cardiovascular disease due to relationship conflict and PTSD.

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.

How to thrive in battery acid and among toxic metals

The genome of extremophile red alga Galdieria sulphuraria reveals horizontal gene transfer from bacteria, allowing it to survive battery acid and toxic metals. This discovery provides new insights into evolution and potential applications in biotechnology.

Stronger support needed for healthy beverage practices in child care

A new study highlights the lack of availability and accessibility of water in child care centers, which can hinder the development of health habits. The researchers emphasize the need for policy change and support to help centers meet existing water policies and promote healthy beverage practices.

Using human brain cells to make mice smarter

Researchers implanted human brain cells into mice, finding enhanced learning and memory compared to normal mice. The study suggests that human-specific glial form and function contribute to the evolution of human cognition.

Apple iPad Pro 11-inch (M4)

Apple iPad Pro 11-inch (M4) runs demanding GIS, imaging, and annotation workflows on the go for surveys, briefings, and lab notebooks.

Age at first menstrual cycle, menopause tied to heart disease risk

A recent study found that Chinese women who started menstruating later or went through menopause at an older age were less likely to develop cardiovascular disease. The study also discovered a higher risk of osteoporosis for those with early menopause, with benefits seen in women over 50 when entering menopause.

High BMI linked to heart attack, stroke in young women

A nationwide Danish study finds that young women with a high body mass index (BMI) are twice as likely to suffer a life-threatening heart attack or stroke within four to five years after childbirth. The study, led by Michelle Schmiegelow, examines the association between obesity and cardiac events in women aged 35-44.

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.

Tracking sediments' fate in largest-ever dam removal

Researchers at the University of Washington are studying the sediment's fate after the removal of the Elwha Dam, which has released an estimated 34 million cubic yards of silt and sand into the Strait of Juan de Fuca. The sediments' ultimate fate is crucial for understanding their impact on the ocean floor and marine life.

Lizards facing mass extinction

A new study suggests that climate change may lead to the extinction of dozens of lizard species within the next 50 years due to rising temperatures. Lizards with viviparous reproduction are particularly vulnerable as changing weather patterns affect their ability to adapt and survive in cold environments.

Exercise shields children from stress

A recent study found that sedentary children experience stress hormone surges when exposed to everyday stressors, while the most active children had little or no increase in cortisol levels. The study suggests physical activity plays a role in mental health by buffering children from daily stressors.

Dual systems key to keeping chromosomes intact

Scientists have discovered two structural apparatuses that collaborate to protect repetitive DNA during replication. Disrupting both heterochromatin and replication fork proteins increases abnormal chromosomes and cell death.

Lack of aspirin before angioplasty linked with higher mortality

A recent study by the American College of Cardiology found that patients not given aspirin before artery-clearing coronary angioplasty and stenting have a significantly higher in-hospital death rate. The study examined registry data from over 65,000 patients and found that nearly 7% did not receive aspirin as recommended.

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.

Bees get a buzz from caffeine

Scientists have shown that caffeine enhances a honeybee's memory of floral traits, allowing them to remember flowers better. This discovery could lead to improved pollination and plant recruitment.

Organizing enzymes to create electricity

A researcher has received a grant to develop a method to organize enzymes on electrodes to create nanoscale devices that efficiently convert chemical energy into electricity. The goal is to enhance kinetics by spatial organization and apply the understanding to biofuel cells, pharmaceuticals, and commodity chemicals.

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.

Cholesterol levels rise, fall with changing seasons

Researchers found that LDL cholesterol increases by an average of 7mg/dL in winter compared to summer, resulting in a 8% overall increase in high cholesterol prevalence. Seasonal variations in metabolism and behavior may contribute to these changes.

Test-taking may improve learning in people of all ages

Adults of various ages improved retention of new information by taking tests and receiving feedback compared to restudying, according to a study published in Psychology and Aging. The results suggest that testing can be an effective way to increase learning in adults of all ages.

Support cells found in human brain make mice smarter

The study demonstrates that when transplanted into mice, human glial cells can influence communication within the brain, allowing animals to learn more rapidly. Human astrocytes are found to have unique functional advantages and play a significant role in integrating and coordinating neural activity.

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.

Changes in heart attack timing continue years after hurricane

Research shows that even five years after Hurricane Katrina, heart attacks were still less likely to occur during the morning or on weekdays and instead more frequent at night and on weekends. Prolonged periods of stress are believed to be the most likely cause for these changes.

How science debunked the ancient Aztec crystal skull hoax

The American Chemical Society reveals that quartz-crystal skulls, once believed to be ancient relics, are actually post-Columbian fakes created in the 1860s. Experts used scientific instruments to expose their authenticity, tracing back to French dealer Eugène Boban who sparked public fascination with the fakes

Disease knowledge may advance faster with CRISPR gene probing tool

Scientists at UC San Francisco have developed a more precise way to turn off genes using a protein from bacteria to fight off viruses. The new technology, called CRISPR interference, allows researchers to selectively perturb gene expression on a genome-wide scale and identify key proteins that control cellular events.

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.

Secondhand smoke exposure linked to signs of heart disease

Research found that people exposed to secondhand tobacco smoke have a higher risk of developing early signs of heart disease, including coronary artery calcification. The study also shows that the level of exposure to secondhand smoke is directly linked to the severity of CAC.

When food is scarce, a smaller brain will do

Researchers found that the brain prioritizes neural diversity over number of neurons when faced with limited nutrients, a strategy essential for survival. This discovery may have implications for understanding human brain development and addressing intrauterine growth restriction.

Fluke 87V Industrial Digital Multimeter

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

Majority of Albertans support assisted suicide: UAlberta study

A new study by University of Alberta researcher Donna Wilson found that 77.4% of Albertans support assisted suicide, citing personal experiences and autonomy as key factors. The results challenge traditional views in the province and raise important questions about end-of-life care.

Star-shaped glial cells act as the brain's 'motherboard'

Researchers at Tel Aviv University discovered that astrocytes play a key role in brain communications, integrating messages and connecting neuronal circuits. This new framework offers insight into brain disease and disorders, such as epilepsy and Alzheimer's, which are linked to malfunctions in brain connectivity.

Study finds sexual health services for rural Latino men could be improved

A new study found that rural Latino men require specialized sexual health services due to language barriers, cultural assumptions, and limited access. The research team suggests improving services by providing male providers, bilingual staff, and convenient clinic hours, as well as addressing terminology and cultural nuances.

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.

Measuring the universe more accurately than ever before

A team of astronomers has measured the distance to the Large Magellanic Cloud with unprecedented accuracy, pinning down its value at 163,000 light-years. This breakthrough improves distances for Cepheid variable stars and the Hubble Constant, enabling more precise surveying of the Universe.

New grant expands beach water research at Presque Isle State Park

Mercyhurst University has received a $20,000 grant to extend its research on emerging contaminants in Lake Erie waters at Presque Isle State Park. The study will focus on five chemicals, including fluoxetine, triclosan, estradiol, diuron, and sucralose, which have been shown to have negative health consequences.

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.