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Science News Archive 2008


Page 114 of 240

Asthma and other allergies tied to absence of specialized cells

Researchers at NYU Langone Health identified a class of custom-made immune cells called regulatory T cells that prevent allergic reactions by recognizing potential allergens. These cells are produced in response to a gene called Foxp3 and help control damage from long-term inflammation.

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.

Context is everything: New research uncovers key to consumer preferences

Researchers found that the configuration of the choice set significantly impacts creating consumer preference. Participants rated products and their satisfaction with choices in different sets, showing that context can influence preference strength and attribution. The study demonstrates the long-term effects of choice processes on con...

Categories help us make happier choices

Researchers found that categorization of options increases consumer happiness and satisfaction, even if categories are meaningless. This phenomenon, known as the mere categorization effect, shows that consumers experience a sense of self-determination when faced with categorized choices.

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.

Tips on how to build a better home for biological parts

Researchers at Virginia Tech developed guidelines for designing and managing next-generation databases of biological parts. The study identified key needs for improvement, including standardization of DNA clones and quality control measures.

Apple iPhone 17 Pro

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

Growing up amid war affects children's moral development

A new study by researchers at the University of Utah found that Colombian children living in war zones exhibited a complex moral understanding, with most rejecting theft and harm but accepting it as a means to an end. The study highlights potential vulnerabilities in children's moral lives during times of conflict.

Freeing light shines promise on energy-efficient lighting

Scientists at the University of Michigan and Princeton University have discovered a way to enhance light output in organic light-emitting devices, emitting approximately 70 lumens from a single watt of power. This innovation pushes more appealing white light, reducing energy consumption and reliance on coal-generated electricity.

Children's physical activity drops from age 9 to 15, NIH study indicates

A large group of American children showed a significant decline in physical activity between ages 9 and 15, with most failing to reach the daily recommended level of 60 minutes of moderate to vigorous physical activity. The researchers estimated that physical activity declined by about 40 minutes per day each year until age 15.

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.

Fuel subsidies better spent re-training fishers: UBC researchers

UBC researchers suggest redirecting fuel subsidies from fishing fleets to re-training fishers to address the economic and environmental impact of rising fuel costs. The study found that governments spend $6.4 billion annually on fuel subsidies, which could be better spent supporting sustainable fisheries.

Newly described 'dragon' protein could be key to bird flu cure

Researchers at Argonne National Laboratory have crystallized and characterized the H5N1 virus's RNA polymerase protein, a crucial component in viral replication. The study reveals an unexpected relationship between two subunits of the protein, which could inspire therapies to prevent the spread of bird flu.

Researchers generate hydrogen without the carbon footprint

Scientists have developed a new method to produce hydrogen from water and solar energy, reducing the carbon footprint of traditional production methods. The process uses nanotube diodes that can harness the entire spectrum of sunlight, producing hydrogen and oxygen.

Scientists close in on source of X-rays in lightning

Researchers at UF and FIT used electric field and X-ray detectors to study X-rays emitted by lightning. They found that X-rays are produced just below each step of the 'step leader' process, which helps understand how lightning travels.

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.

Stomach bug appears to protect kids from asthma, says NYU study

A new study led by NYU Langone Medical Center researchers found that children who carry Helicobacter pylori are nearly 59% less likely to have asthma. The bacteria, which has co-existed with humans for at least 50,000 years, may strengthen the immune system and reduce the risk of allergic reactions.

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.

Y chromosome study sheds light on Athapaskan migration to southwest US

A genetic study of native North Americans offers new insights into the migration of Athapaskan natives from subarctic northwest America to the southwestern United States. The study found that a small group of Athapaskans successfully assimilated with native groups, leaving a lasting legacy in their language and genes.

Culture and depression

A new study from the Centre for Addiction and Mental Health found that Western cultures tend to emphasize psychological symptoms of depression, while East-Asian cultures emphasize somatic or physical symptoms. The study also revealed a link between cultural differences in thinking styles and symptom reporting.

For toy-like NASA robots in Arctic, ice research is child's play

Researchers have developed a network of unmanned, autonomous robots called SnoMotes to collect data on ice sheets and glaciers in the Arctic. These toy-like robots can navigate treacherous terrain and capture real-time measurements of barometric pressure, temperature, and relative humidity.

Peers important for nutrition education among Latinos

A systematic literature review found that peer nutrition education significantly improves health outcomes among Latinos, including diabetes self-management and breastfeeding. The study highlights the need to formally incorporate peer nutrition educators into healthcare systems to address health disparities.

Fluke 87V Industrial Digital Multimeter

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

Vitamin A pushes breast cancer to form blood vessel cells

Researchers at Georgetown University Medical Center have discovered that vitamin A can push stem cells in breast cancer tumors to form endothelial cells, leading to the creation of new blood vessels. This finding supports the 'vasculogenic mimicry' theory, which proposes that tumors build their own blood pipelines.

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.

Study: Regular walking nearly halves elderly disability risk

A University of Georgia study found that participating in a walking exercise program can decrease elderly disability risk by 41% and increase physical function by 25%. The study also showed that walking increased aerobic capacity by 19% compared to a control group.

Focused Internet services provide better support to breast cancer patients

A study published in the Journal of Communication found that access to an integrated system of internet health resources significantly improved quality of life, perceived social support, and health information management for breast cancer patients. In contrast, providing only a list of URLs or standard care offered little benefit.

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.

Aggressive preschoolers found to have fewer friends than others

New research reveals aggressive preschoolers tend to have less consistent relationships with peers and play with fewer classmates over time. Non-aggressive children, on the other hand, do better at interactions with many peers as they practice social skills and learn to control their behavior.

UT pathologists believe they have pinpointed Achilles heel of HIV

Researchers at UT Medical School have pinpointed the Achilles heel of HIV in the envelope protein gp120, a region essential for viral attachment to host cells. Engineered antibodies with enzymatic activity, or abzymes, can attack this weak spot, offering new hope for therapeutic intervention and prevention.

Meta Quest 3 512GB

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

Corporations can profit from being environmentally friendly

A new study by George Mason University researcher Nicole Darnall shows that companies can profit from environmentally friendly practices, such as reducing waste and developing green products. The study found that organizations that improve their environmental performance can offset the cost of regulation or even accrue a net gain.

Parents should limit young children's exposure to background TV

A new study found that leaving background TV on can disrupt young children's play behavior, reducing their attention span and toy play time. The research suggests that parents should limit their young children's exposure to adult-oriented television in the home.

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.

Tumor-inhibiting protein could be effective in treating leukemia

Researchers discover that Angiocidin can differentiate leukemia cells into a normal, macrophage-like phenotype, making them susceptible to chemotherapy treatment. The protein also stimulates the immune system by up-regulating genes characteristic of immune cells.

Dartmouth researchers discover gene signatures for scleroderma

Researchers identified four distinct molecular subtypes in patients with scleroderma, offering new hope for better diagnosis and targeted therapies. The study uses gene expression patterns to classify patients, which could help predict disease progression and treatment response.

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.

How birds spot the cuckoo in the nest

A team of scientists found that blackcap birds can distinguish between genuine and fake cuckoo eggs by altering the UV reflectivity. The study, published in The Journal of Experimental Biology, shows that when blackcap eggs are coated with a UV blocker or Vaseline, they are rejected by the parents.

Environmental pollutant has sex-skewing effect

Women exposed to high levels of polychlorinated biphenyls (PCBs) are more likely to give birth to female children. A study found that for every one microgram of PCBs per liter of serum, the chance of having a male child fell by 7%. The researchers suggest that high maternal PCB concentrations may favor fertilization by female sperm or ...

Full-day kindergarteners' reading, math gains fade by 3rd grade

Children in full-day kindergarten have initial academic benefits over part-day kindergarten, but poverty and home environment issues erode these advantages soon after leaving kindergarten. The study's findings highlight the importance of family characteristics in explaining why full-day programs' benefits fade quickly.

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.

Turning on hormone tap could aid osteoporosis fight

Researchers have discovered a potential new drug that 'opens the taps' for hormone release, potentially stimulating new bone growth. The approach involves stimulating parathyroids, tiny glands controlling PTH hormone, which could lead to increased calcium levels and bone formation.

Improved culture system for hepatitis C virus infection

A University of California, San Diego researcher has created a novel culture system that models HCV infection in human liver cells, providing a realistic environment to test new treatments. This breakthrough enables the screening of possible therapies for HCV, which affects approximately 170 million people worldwide.

Gaining ground on sickle cell disease

Researchers identified five gene variants that could predict sickle cell disease severity and offer potential therapeutic targets. These variants influence fetal hemoglobin levels, which affect symptom severity in the disease.