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Science News Archive May 2013 - Page 22


Page 22 of 30

Air pollution increases risk of insulin resistance in children

A new study published in Diabetologia found that growing up in areas with high air pollution increases the risk of insulin resistance in children. The research used data from two prospective German birth cohort studies and found a significant association between air pollution exposure and increased levels of insulin resistance.

SourceDiabetologia·JournalDiabetologia·DateMay 9, 2013

Researchers discover dynamic behavior of progenitor cells in brain

Neuroscientists at Johns Hopkins discovered that progenitor cells in the adult brain are highly dynamic, transforming into cells that insulate nerve fibers and help form scars. These cells communicate with each other to maintain a regular distribution throughout the brain and spinal cord.

SourceJohns Hopkins Medicine·JournalNature Neuroscience·DateMay 9, 2013
Apple iPhone 17 Pro

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

Bacterial infection in mosquitoes renders them immune to malaria parasites

Researchers have successfully infected mosquitoes with the Wolbachia bacterium, rendering them immune to malaria parasites. The scientists maintained a stable infection in Anopheles stephensi mosquitoes for 34 generations, and all infected female mosquitoes became infected within eight generations when mated with uninfected males.

SourceNIH/National Institute of Allergy and Infectious Diseases·JournalScience·DateMay 9, 2013

Women altering menstruation cycles in large numbers, UO study shows

A University of Oregon study found that 17% of female students alter their menstrual cycle for convenience or personal preference. Women who prefer a monthly cycle are less likely to modify their bleeding schedule, suggesting healthcare providers can educate them on suitable options.

SourceUniversity of Oregon·JournalContraception·DateMay 9, 2013
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.

Positive social support at work shown to reduce risk of diabetes

A 3.5-year-long study found that employees with high social support at work have a 22% lower chance of developing type 2 diabetes, while those with low social support are 18% more likely to develop the disease. The study highlights the importance of finding the right balance in terms of workload and providing necessary social support.

SourceAmerican Friends of Tel Aviv University·JournalJournal of Occupational Health Psychology·DateMay 9, 2013

Study finds link between sexual harassment and 'purging' -- in men

A study by Michigan State University researchers found a significant link between high levels of sexual harassment and purging behaviors in men. Men who experience severe harassment are more likely to engage in compensatory behaviors such as inducing vomiting and taking laxatives.

SourceMichigan State University·JournalBody Image·DateMay 9, 2013

No holes in Swiss online networking theory

Researchers from MIT found that individuals with strong connections to successful people in their online networks are more likely to succeed. Affiliation with prominent academic institutions like ETH Zurich also plays a significant role in predicting success.

SourceInderscience Publishers·JournalInternational Journal of Organisational Design and Engineering·DateMay 9, 2013
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.

Study finds that bacteria organize according to 'rich-get-richer' principle

Researchers found that bacteria form micro-colonies in a pattern similar to economic systems, where a small number of lucky cells have access to resources. This process enables biofilms to develop, making infections potentially deadly. The study may lead to new treatment options using incentives and communication.

SourceUniversity of California - Los Angeles·JournalNature·DateMay 9, 2013

Biomaterial shows promise for Type 1 diabetes treatment

Researchers developed a biomaterial that successfully engrafted insulin-producing cells into diabetic mice, reversing symptoms in just 10 days. The material promotes blood vessel formation and allows cells to survive and function within the body.

SourceGeorgia Institute of Technology·JournalBiomaterials·DateMay 9, 2013

Using bacteria to stop malaria

A study at Michigan State University demonstrates that using a strain of the bacteria Wolbachia can interrupt the transmission of malaria via mosquitoes. This approach could provide an important tool in fighting the disease, particularly in areas where poverty and lack of resources are prevalent.

SourceMichigan State University·JournalScience·DateMay 9, 2013

Research finds identifies social needs of young people with cancer

Researchers found that adolescents and young adults with cancer are at higher risk for social isolation due to lack of understanding from friends and family. The study suggests developing targeted support programs to address these social information needs, including online connections and communication tools.

SourceLouisiana State University Health Sciences Center·JournalJournal of Adolescent and Young Adult Oncology·DateMay 9, 2013
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.

Could eating peppers prevent Parkinson's?

Research suggests that eating foods containing edible Solanaceae, such as peppers and tomatoes, may reduce risk of developing Parkinson's. The study found a strong association between increased consumption of these foods and decreased risk of Parkinson's, with peppers displaying the strongest association.

SourceWiley·JournalAnnals of Neurology·DateMay 9, 2013

Mosquito survey identifies reservoir of disease

A large-scale study of mosquitoes in Kenya found a diverse range of arboviruses, including West Nile, Ndumu, and Ngari viruses. Over 450,000 mosquitoes were screened, revealing previously unknown viruses with similarities to the Chaoyang virus in China.

SourceBMC (BioMed Central)·JournalVirology Journal·DateMay 9, 2013

Methylphenidate 'normalizes' activation in key brain areas in kids with ADHD

Functional MRI studies show that methylphenidate alters brain activity patterns in areas like frontal lobes and basal ganglia in young patients with ADHD. The medication partially normalizes brain function in these regions, suggesting potential therapeutic benefits for ADHD symptoms.

SourceWolters Kluwer Health·JournalHarvard Review of Psychiatry·DateMay 9, 2013

Genes define the interaction of social amoeba and bacteria

Researchers identified genetic controls that enable social amoebas to differentiate between gram-negative and gram-positive bacteria. The study found nearly 800 genes activated when exposed to gram-negative bacteria, highlighting a key role for a specific gene in degrading bacterial cell walls.

SourceBaylor College of Medicine·JournalCurrent Biology·DateMay 9, 2013
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.

Dust in the clouds

An interdisciplinary team from MIT identified cirrus clouds' major seeds as mineral dust and metallic aerosols. The study found that these particles freeze into ice crystals, influencing global climate patterns.

SourceMassachusetts Institute of Technology·JournalScience·DateMay 9, 2013

Flawed diamonds promise sensory perfection

Researchers at Berkeley Lab have improved the performance of nanoscale magnetic field sensors using diamond defects, enabling clocks accurate to within a few quadrillionths of a second. The discovery may also enable rotational sensors quicker and more tolerant of extreme temperatures than current gyroscopes.

SourceDOE/Lawrence Berkeley National Laboratory·JournalNature Communications·DateMay 9, 2013

Unleashing the watchdog protein

McGill University researchers have discovered the three-dimensional structure of the Parkin protein, which protects neurons from cell death due to damaged mitochondria. The study's findings suggest that designing mutations in Parkin could provide better protection for nerve cells and potentially slow disease progression.

SourceMcGill University·JournalScience·DateMay 9, 2013

Doctor's choice of words may influence family's decision to permit CPR in critically ill

A study by University of Pittsburgh researchers found that physicians' word choices significantly impact families' decisions about end-of-life care, particularly the use of cardiopulmonary resuscitation (CPR). The study suggests a change in terminology from 'DNR' to 'allow natural death' can lead to a 10% decrease in CPR choice.

SourceUniversity of Pittsburgh Schools of the Health Sciences·JournalCritical Care Medicine·DateMay 9, 2013
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.

Why we love it or hate it: The 3 E's

A USC Marshall study found that brands appeal to consumers' aesthetic, functional, and spiritual needs to build attachment. The three E's - enticement, enablement, and enrichment - determine the distance between customers and a brand.

SourceUSC Marshall School of Business·JournalJournal of Consumer Psychology·DateMay 9, 2013

Scientists define a new mechanism leading to tumor hypoxia

Scientists from the University of Pennsylvania define a novel mechanism of tumor hypoxia induced by the longitudinal gradient of residual oxygen along tumor vessels as they transverse the tumor. The researchers found large regions of moderate hypoxia that were not easily explained by existing concepts, suggesting a new scale for unders...

SourceDe Gruyter·JournalTumor Microenvironment and Therapy·DateMay 9, 2013

The Lancet Series on bipolar disorder

The Lancet Series on bipolar disorder offers a comprehensive overview of the condition, including its genetic basis, diagnostic challenges, and treatment limitations. The series highlights the need for more accurate diagnosis and personalized treatments, with neuroimaging research potentially transforming bipolar diagnosis.

SourceThe Lancet_DELETED·JournalThe Lancet·DateMay 9, 2013

Elevated cadmium levels linked to disease

A recent study by Johns Hopkins scientists reveals an association between elevated cadmium levels and increased risk of liver disease in men. Higher levels of cadmium in urine were found to be nearly 3.5 times more likely to lead to liver-related deaths compared to lower levels.

SourceJohns Hopkins Medicine·JournalJournal of Gastrointestinal Surgery·DateMay 9, 2013
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.

Hubble finds dead stars 'polluted' with planetary debris

Astronomers have found signs of rocky material in the atmospheres of two dead stars, suggesting that terrestrial planets may still exist. The debris detected around these white dwarfs is thought to be the remains of asteroids that were shredded by the star's gravity.

SourceESA/Hubble Information Centre·JournalMonthly Notices of the Royal Astronomical Society·DateMay 9, 2013

Researchers identifies gene associated with eczema in dogs

A novel gene associated with canine atopic dermatitis has been identified by researchers. The gene encodes a protein called plakophilin 2, which is crucial for the formation and proper functioning of the skin structure. This finding opens new possibilities in understanding the disease mechanism leading to atopic dermatitis.

SourceUppsala University·JournalPLOS Genetics·DateMay 9, 2013

Research reveals cancer-suppressing protein 'multitasks'

Researchers at Walter and Eliza Hall Institute discover that p53 protein can prevent cancer formation even without regulating cell death or division after DNA damage. The study sheds new light on the complex functions of p53, which was previously believed to have a straightforward role in preventing cancer.

SourceWalter and Eliza Hall Institute·JournalCell Reports·DateMay 9, 2013
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.

Heady mathematics

University of California, Berkeley researchers James A. Sethian and Robert I. Saye describe the mathematical evolution and disappearance of foamy bubbles, a feat that could help model industrial processes and solid foam formation. They developed scale-separated equations to treat different aspects of foams with distinct sets of equations.

SourceUniversity of California - Berkeley·JournalScience·DateMay 9, 2013

Experience leads to the growth of new brain cells

A new study found that individual experiences and behaviors contribute to differences in brain structure, even among genetically identical mice. The research suggests that this process is linked to the generation of new neurons in the hippocampus, a region responsible for learning and memory.

SourceHelmholtz Association·JournalScience·DateMay 9, 2013

Geologists study mystery of 'eternal flames'

Geologists at Indiana University studied the 'Eternal Flame' in Erie County, N.Y., which may feature high concentrations of ethane and propane. The researchers identified natural gas seeps in the region, suggesting they could contribute to atmospheric concentrations of greenhouse gases.

SourceIndiana University·JournalMarine and Petroleum Geology·DateMay 9, 2013

Water on moon, Earth came from same primitive meteorites

Researchers found that water on the moon and Earth came from small meteorites called carbonaceous chondrites in the first 100 million years after the solar system formed. The ratio of deuterium to hydrogen in the moon's water matches that found in chondrites, suggesting a common source.

SourceCase Western Reserve University·JournalScience·DateMay 9, 2013

No-win situation for agricultural expansion in the Amazon

A new study finds that agricultural expansion in the Amazon will reduce the region's natural carbon sink and inflict climate feedbacks, leading to decreased productivity of pasture and soybeans. By 2050, precipitation decrease caused by deforestation could reduce pasture productivity by up to 30% and soybean yield by up to 28%.

SourceIOP Publishing·JournalEnvironmental Research Letters·DateMay 9, 2013
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.

NIH scientists create new tool for identifying powerful HIV antibodies

The new tool uses neutralization fingerprinting to identify specific types of HIV antibodies present in a blood sample. This approach is particularly useful when other methods are not feasible and can significantly reduce the time required for analysis.

SourceNIH/National Institute of Allergy and Infectious Diseases·JournalScience·DateMay 9, 2013

Carnitine supplement may improve survival rates of children with heart defects

Researchers have discovered that carnitine supplements can normalize blood vessel dysfunction associated with congenital heart defects and even prevent damage after corrective surgery. High daily doses of carnitine for the first four weeks of life may also prevent endothelial dysfunction in children with heart defects.

SourceMedical College of Georgia at Augusta University·JournalPediatric Research·DateMay 8, 2013

Look! Something shiny! How some textbook visuals can hurt learning

A recent study found that children as young as six years old struggle to read simple bar graphs when they contain pictures, instead focusing on the images rather than their heights. This can lead to incorrect answers and hinder learning. The researchers recommend keeping instructional materials simple to avoid such distractions.

SourceOhio State University·JournalJournal of Educational Psychology·DateMay 8, 2013
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.

Quantum optics with microwaves

Researchers at ETH Zurich successfully demonstrate the Hong-Ou-Mandel effect using microwave photons, showcasing a fundamental aspect of quantum mechanics. The experiment offers new possibilities for characterizing radiation sources and may lead to practical applications in quantum communication and information processing.

SourceETH Zurich·JournalNature Physics·DateMay 8, 2013

Cancer biorepository speeds clinical trials, drug development, Moffitt analysis shows

Researchers at H. Lee Moffitt Cancer Center & Research Institute found that using a centralized warehouse of patient-donated biological data expedites participant accrual, reduces trial size, saves money, and speeds up test drugs through the drug development pipeline. The study used data from recent clinical trials conducted at Moffitt...

SourceH. Lee Moffitt Cancer Center & Research Institute·JournalStatistical Methods in Medical Research·DateMay 8, 2013
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.

Dramatic decrease in risk of death for children on dialysis

A new study published in JAMA finds that the risk of death for children on dialysis has dramatically decreased over time, with a 20% reduction in mortality risk every five years. This improvement is attributed to better pre-dialysis care, advances in dialysis technology, and reduced waiting times for transplants.

SourceMcGill University Health Centre·JournalJAMA·DateMay 8, 2013
Celestron NexStar 8SE Computerized Telescope

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

Gastroenterology special issue highlights the pancreas

The AGA's 13th annual special issue focuses on the pancreas, presenting a variety of topics related to exocrine function, endocrine regulation, and clinical manifestations. Key findings highlight the importance of innovative treatments for patients with pancreatic diseases.

SourceAmerican Gastroenterological Association·JournalGASTROENTEROLOGY·DateMay 8, 2013

Immune cells that suppress genital herpes infections identified

Researchers have identified CD8αα+ T cells, which reside long-term in the genital skin and mucosa, suppressing recurring outbreaks of genital herpes. These immune cells play a crucial role in preventing reactivations of the virus, making them a potential target for vaccine development.

SourceFred Hutchinson Cancer Center·JournalNature·DateMay 8, 2013
Meta Quest 3 512GB

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

Study shows that people organize daily travel efficiently

A new study from MIT's Marta González and Christian Schneider found that people in Chicago and Paris make secondary trips in a consistent manner, with only 17 out of 1 million possible trip sequences used. This pattern, or 'motif,' indicates that individuals plan ahead and avoid revisiting locations to optimize travel time and distance.

SourceMassachusetts Institute of Technology·JournalInterface·DateMay 8, 2013

Researchers discover world's most extreme hearing animal

Scientists at the University of Strathclyde have identified the greater wax moth as capable of sensing sound frequencies up to 300kHz, surpassing human and dolphin limitations. This discovery has significant implications for air-coupled ultrasound technology and may lead to advancements in micro-scale acoustic systems.

SourceUniversity of Strathclyde·JournalBiology Letters·DateMay 8, 2013