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Science News Archive 2010 - Page 26


Page 26 of 283

Use of HIV medications reduces risk of HIV infection in uninfected people

A major study demonstrates the effectiveness of pre-exposure prophylaxis (PrEP) in reducing HIV infection risk in high-risk individuals. The iPrEx study found that PrEP reduced HIV infections by an average of 43.8% in participants who received the medication, with consistent use providing even greater protection.

SourceUniversity of California - San Francisco·JournalNew England Journal of Medicine·DateNov 23, 2010
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.

Developing countries often outsource deforestation, study finds

A new study found that reforestation at home often leads to deforestation abroad in developing countries. International trade in forest products increased the demand for imported timber and agricultural products, contributing to net deforestation. Strengthening cooperation and certification systems can help mitigate this issue.

SourceStanford University·JournalProceedings of the National Academy of Sciences·DateNov 23, 2010

Methane-powered laptops may be closer than you think

Researchers at Harvard University have made significant breakthroughs in methane-fueled solid-oxide fuel cells, reducing operating temperatures and costs. The development of platinum-free micro-SOFCs could enable the use of methane as a fuel source for laptops and portable electronics.

SourceHarvard University·JournalJournal of Power Sources·DateNov 23, 2010
Apple iPhone 17 Pro

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

December 2010 Geology and GSA Today highlights

Recent studies shed light on ancient C4 plants, submarine channels with helical flow reversal, and the genesis of granite. Researchers have also discovered mysterious rock layers containing petrified remains, cohabiting bacteria in ancient environments, and deep-cave stromatolites.

SourceGeological Society of America·JournalGeology·DateNov 23, 2010

Novel fuel cell catalyst lowers need for precious metal

Researchers have developed a novel fuel cell catalyst that uses large spheres of gold instead of platinum, reducing the need for precious metals. The catalyst retains its converting power and produces electricity at top capacity for longer periods than traditional small-particle models.

SourceUniversity of Copenhagen·JournalElectrochemistry Communications·DateNov 23, 2010

The physics of coffee rings

Researchers have devised a predictive model to control the formation of banded ring patterns left behind by coffee droplets. The model suggests that particle deposition can be controlled by altering physical parameters such as evaporation and surface tension.

SourceAmerican Institute of Physics·DateNov 23, 2010

Plant-derived scavengers prowl the body for nerve toxins

Researchers at Arizona State University have successfully produced plant-derived human butyrylcholinesterase, a bioscavenger that can neutralize organophosphate toxins. This breakthrough holds promise for protecting the nervous system from pesticide and nerve agent poisoning, as well as treating related diseases such as Alzheimer's.

SourceArizona State University·JournalProceedings of the National Academy of Sciences·DateNov 23, 2010
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.

Discovery halts breast cancer stem cells

Researchers at Tufts University discovered that estrogen stimulates breast cancer stem cells through a pathway mirroring normal stem cell development. By disrupting this signaling mechanism, they were able to halt the expansion of breast cancer stem cells and prevent tumor growth.

SourceTufts University, Health Sciences Campus·JournalProceedings of the National Academy of Sciences·DateNov 23, 2010

Getting lost in buildings: Architecture can bias your cognitive map

Research reveals that architecture can influence people's ability to navigate buildings, with some designs favoring spatial skills over others. A study suggests strategies for improving wayfinding in complex environments.

SourceAssociation for Psychological Science·JournalCurrent Directions in Psychological Science·DateNov 23, 2010

Self-assembly of nano-rotors

Researchers have successfully self-assembled rod-shaped molecules into small rotors within a two-dimensional network, forming a hexagonal lattice. The rotors exhibit unique energy thresholds and can maintain their structure even when exposed to thermal energy, enabling potential applications in optical or electronic switching.

SourceTechnical University of Munich (TUM)·JournalProceedings of the National Academy of Sciences·DateNov 23, 2010
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.

Optimizing large wind farms

Charles Meneveau and Johan Meyers develop a model to calculate optimal turbine spacing for large wind farms. They find that energy production depends less on horizontal winds and more on entraining strong winds from higher in the atmosphere, leading to an optimal distance of about 15 rotor diameters.

SourceAmerican Institute of Physics·DateNov 23, 2010
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.

NIH adds first images to major research database

The National Eye Institute has expanded its genetic and clinical research database by adding more than 72,000 lens and fundus photographs from the Age-Related Eye Disease Study (AREDS). These images are now accessible to scientists through NCBI's online database of Genotypes and Phenotypes, dbGaP.

SourceNIH/National Eye Institute·DateNov 23, 2010

Extending the life of oil reserves

A new additive has been developed to treat carbon dioxide, making it suitable for efficient and environmentally friendly oil extraction. The additive can also reduce environmental damage caused by industrial processes.

SourceScience and Technology Facilities Council·JournalLangmuir·DateNov 23, 2010

Sour research, sweet results

Researchers at USC College have made a groundbreaking discovery about sour flavors, revealing that protons from acids directly activate taste cells. This finding has important implications for understanding how different tastes interact and may lead to practical applications in cooking and food industry.

SourceUniversity of Southern California·JournalProceedings of the National Academy of Sciences·DateNov 23, 2010
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.

Virginia Tech engineers introduce thermotherapy as a chemotherapy alternative

Researchers have developed a new method to target and destroy cancerous cells using hyperthermia, which elevates the temperature of tumor cells while keeping surrounding healthy tissue at a lower degree of body heat. The technique uses ferrofluids to induce hyperthermia and has been shown to be biocompatible with iron oxide nanoparticles.

SourceVirginia Tech·DateNov 23, 2010

New research from Psychological Science

Adults with insecure attachment styles may have difficulties regulating emotions, leading to increased risk for mental health problems. Cultural differences in the endowment effect suggest that independence and self-enhancement values influence giving up possessions.

SourceAssociation for Psychological Science·JournalPsychological Science·DateNov 23, 2010

Monitoring wear in helicopters -- and hips, knees and ankles, too

Tel Aviv University scientists apply industrial monitoring technique to diagnose diseases like osteoarthritis and assess the efficacy of medications. Bio-ferrography detects nanometer-sized particles, providing objective and quantitative results for early disease detection and orthopedic implant evaluation.

SourceAmerican Friends of Tel Aviv University·JournalActa Biomaterialia·DateNov 23, 2010
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.

Tobacco: Out of sight, out of mind?

Researchers at the University of Nottingham discovered that removing tobacco displays in shops can change young people's attitudes towards smoking. The number of teenagers who recalled tobacco displays dropped from 81% to 22%, and fewer believed smoking was widespread among their peers.

SourceUniversity of Nottingham·JournalTobacco Control·DateNov 23, 2010

Scientists question fisheries health test

A widely used biodiversity indicator in fisheries is found to be an ineffective guide to trends in marine ecosystems, according to a new study published in Nature. The researchers recommend more direct monitoring and the development of trend-detection methods to better assess the impacts of fishing on marine biodiversity.

SourceCSIRO Australia·JournalNature·DateNov 23, 2010

Less invasive method for determining stage of lung cancer shows benefits

A new study finds that a less invasive method for determining lung cancer stage improves detection of metastases and reduces surgical procedures. The method, which combines endosonography and ultrasound, was more effective than traditional surgical staging in identifying patients who needed further treatment.

SourceJAMA Network·JournalJAMA·DateNov 23, 2010

Registered dietitians play essential role in effective management of diabetes in adults

A systematic review of American Dietetic Association Nutrition Practice Guidelines provides recommendations for registered dietitians to support people with type 1 and type 2 diabetes. The guidelines emphasize consistency in carbohydrate intake, insulin dose adjustment, and cardioprotective nutrition interventions.

SourceElsevier Health Sciences·JournalJournal of the American Dietetic Association·DateNov 23, 2010
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.

Overweight primarily a problem among wealthier women in low- to middle-income countries

A new study from Harvard School of Public Health finds that high body mass index (BMI) is primarily a problem among wealthy women in developing countries. The study analyzed data from 54 low- to middle-income countries and found an association between BMI and wealth, with richer women more likely to be overweight.

SourceHarvard T.H. Chan School of Public Health·JournalAmerican Journal of Clinical Nutrition·DateNov 22, 2010

New sleep cycle discovery explains why fatty diets during pregnancy make kids obese

Research published in FASEB Journal suggests that a fetal liver gene called Npas2 is a key regulator of the circadian system, which is altered by maternal high-fat diet during pregnancy. Improving diet can partially restore circadian machinery and reduce risk of childhood diseases related to obesity.

SourceFederation of American Societies for Experimental Biology·JournalThe FASEB Journal·DateNov 22, 2010

The spice of life: Variety is also good for hares

A new study published in Molecular Ecology found that hares with genetic variation at a specific gene locus have higher reproductive success, including increased fertility and fecundity. The research suggests that variability at the individual level can provide advantages for survival and reproduction.

SourceUniversity of Veterinary Medicine -- Vienna·JournalMolecular Ecology·DateNov 22, 2010
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.

Stability is first step toward treating ALS

Researchers at Brandeis University developed a chemical rope to stabilize the SOD1 protein, which causes familial ALS. The approach potentially solves the instability problem, even at high temperatures.

SourceBrandeis University·JournalProceedings of the National Academy of Sciences·DateNov 22, 2010

Allotment gardeners reap healthy rewards

A study found that allotment gardeners, especially those over 60, exhibit increased levels of physical activity and better overall health compared to their non-gardening counterparts. The research also suggests that having an allotment can promote healthy aging and lifestyle habits.

SourceBMC (BioMed Central)·JournalEnvironmental Health·DateNov 22, 2010

University of Minnesota engineering researcher finds new way to fight antibiotic-resistant bacteria

Researchers at the University of Minnesota have discovered a new way to combat antibiotic-resistant bacteria by treating municipal wastewater solids at higher temperatures. This approach can destroy up to 99.9% of bacterial genes that confer resistance, making it a potential tool in the fight against superbugs.

SourceUniversity of Minnesota·JournalEnvironmental Science & Technology·DateNov 22, 2010
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.

Hong Kong hospital reports possible airborne influenza transmission

A study published in Clinical Infectious Diseases found that aerosol transmission of influenza may have occurred in a Hong Kong hospital. The authors identified an unbalanced indoor airflow that spread infectious aerosols across the ward, infecting nine patients.

SourceInfectious Diseases Society of America·JournalClinical Infectious Diseases·DateNov 22, 2010

More than half of depression patients give up their treatment

A recent study found that most depression patients (56%) discontinue their treatment within the first four months of medication, while less than a quarter complete therapy for more than 11 months. The researchers suggest that acute depression stages and lower adherence rates are common factors contributing to treatment dropout.

SourceSpanish Foundation for Science and Technology·JournalEuropean Psychiatry·DateNov 22, 2010

Successful treatment for mice with beta-thalassemia

A team of researchers has successfully treated beta-thalassemic mice by increasing hepcidin levels, which limits iron overload and markedly reduces anemia. This approach suggests a new therapeutic strategy for patients with beta-thalassemia, potentially mitigating iron overload and anemia.

SourceJCI Journals·JournalJournal of Clinical Investigation·DateNov 22, 2010

New clinical practice guideline may help reduce the pain of childhood immunization

A new evidence-based clinical practice guideline aims to reduce pain and distress of immunization in children, based on 71 studies involving 8050 children. The guidelines suggest various strategies to alleviate pain, including breastfeeding, topical anesthetics, and vaccine administration technologies.

SourceCanadian Medical Association Journal·JournalCanadian Medical Association Journal·DateNov 22, 2010
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.

Bacteria help infants digest milk more effectively than adults

Infants have more efficient bacteria to digest milk due to specific bacterial strains dominating their digestive tracts. These strains, such as Bifidobacterium longum subsp. infantis, enable efficient growth on human milk oligosaccharides.

SourceAmerican Society for Microbiology·JournalApplied and Environmental Microbiology·DateNov 22, 2010

Lower-income families with high-deductible health plans may put off care because of costs

A recent study found that lower-income families enrolled in high-deductible health plans are more likely to delay or forego medical care because of the costs. Despite this, they did not report any difficulties understanding their plans. The study suggests that physicians play a crucial role in helping patients navigate these challenges.

SourceJAMA Network·JournalArchives of Internal Medicine·DateNov 22, 2010
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.

Upper-class people have trouble recognizing others' emotions

A new study published in Psychological Science reveals that lower-class individuals are better at reading emotions than their upper-class counterparts. The researchers found that people from higher social classes performed worse on emotion perception tasks, suggesting they rely less on others for emotional support.

SourceAssociation for Psychological Science·JournalPsychological Science·DateNov 22, 2010
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.

Exercise may improve complications of deep vein thrombosis

A six-month exercise program improved leg strength and flexibility in patients with post-thrombotic syndrome, a frequent complication of deep vein thrombosis. The study's findings support the potential benefits of exercise training for managing this condition.

SourceCanadian Medical Association Journal·JournalCanadian Medical Association Journal·DateNov 22, 2010

Uptake protein acts as zinc's doorway to the cell

Researchers at Brookhaven National Laboratory have discovered that the uptake protein ZIP acts like a door, facilitating zinc entry into cells. Zinc is crucial for cellular growth and health, and understanding its uptake could lead to breakthroughs in biomedical and energy research.

SourceDOE/Brookhaven National Laboratory·JournalJournal of Biological Chemistry·DateNov 22, 2010