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Science News Archive June 2004 - Page 3


Page 3 of 12

Common chemicals morphing into potential toxins in Arctic

Researchers discovered a previously unknown reaction that converts fluorotelomer alcohols into perfluorinated carboxylic acids (PFCAs) in the atmosphere, which can last up to 20 days. The chemicals were found in polar bear liver tissue samples and may pose developmental risks to humans living in the Arctic.

SourceUniversity of Toronto·JournalEnvironmental Science & Technology·DateJun 23, 2004

AGU journal highlights - 23 June 2004

Scientists explore new explanations for auroral lights, elephant communication, and the impact of volcanic eruptions on global climate change. Researchers analyze electron interactions with nitric oxide molecules and propose a new method for monitoring small-scale flow variations in the Earth-space boundary.

SourceAmerican Geophysical Union·JournalGeophysical Research Letters·DateJun 23, 2004
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.

Cassini VIMS team finds that Phoebe may be kin to comets

Researchers analyzed Cassini's Visual and Infrared Mapping Spectrometer data, revealing water ice, minerals, and unidentifiable materials on Phoebe's surface. This suggests a possible connection between Phoebe and comets, supporting the idea that it may be similar to Kuiper Belt Objects.

SourceUniversity of Arizona·DateJun 23, 2004

Anorexia nervosa often chronic, study finds

A study published in Psychological Medicine found that 35% of women with anorexia nervosa relapsed into the disorder within two years of leaving the hospital. The mean time before relapse was 18 months, highlighting the need for improved relapse prevention treatments.

SourceUniversity of Toronto·JournalPsychological Medicine·DateJun 23, 2004
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 computational tools to aid in protein research

Researchers have developed new algorithms to interpret NMR data, revealing protein structure and molecular architecture. The tools require less data while producing highly accurate results.

SourceDartmouth College·JournalJournal of Biomolecular NMR·DateJun 23, 2004

Dark days doomed dinosaurs, say Purdue scientists

Researchers analyzed fossil records and found dinoflagellates in ancient sea, indicating a sudden cooling event. The team's discovery confirms climate models and suggests prolonged feedback effects kept ocean depths cold for centuries.

SourcePurdue University·JournalGeology·DateJun 23, 2004

Joslin researchers identify key molecule in Type 1 diabetes progression

Researchers studied insulitis lesions in genetically engineered mice and discovered that inducible co-stimulator (ICOS) plays a crucial role in keeping insulitis respectful. Blocking ICOS disrupts the balance between T effector and regulatory cells, leading to diabetes progression.

SourceJoslin Diabetes Center·JournalJournal of Experimental Medicine·DateJun 23, 2004
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.

The mother lode of mutations

Researchers discovered 68 maternal mutations in zebrafish that may help understand human infertility and birth defects. These mutations affect early embryonic development, including cell divisions and tissue patterning.

SourceUniversity of Pennsylvania School of Medicine·JournalDevelopmental Cell·DateJun 23, 2004

Simple test can help detect common lung disease

Early detection of COPD through a simple spirometry test can slow the loss of lung function, improve symptoms and quality of life, and prevent hospitalizations. Smoking cessation is the only known method to alter the loss of lung function seen in this disease.

SourceNational Jewish Health·JournalNew England Journal of Medicine·DateJun 23, 2004

COPD is forgotten killer, says University of Toronto professor

A University of Toronto professor highlights the disproportionate impact of COPD on women, who experience greater lung damage and are more likely to develop emphysema. By 2010, women will suffer from COPD twice as often as men worldwide.

SourceUniversity of Toronto·JournalClinics in Chest Medicine·DateJun 23, 2004
Apple iPhone 17 Pro

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

Tiny iron supplement has chilling effect

A small amount of iron adds 15-30% to the effective cooling capacity of a material, enabling improved near-room-temperature applications. The iron supplement eliminates hysteresis losses, allowing the material to perform at its peak potential.

SourceNational Institute of Standards and Technology (NIST)·JournalNature·DateJun 23, 2004

NASA scientists get global fix on food, wood & fiber use

Humans annually require 20% of land-based plant growth for food and fiber, with regional consumption varying greatly. Large urban areas consume significantly more than local production, while sparsely populated areas like the Amazon have low consumption rates.

SourceNASA/Goddard Space Flight Center·JournalNature·DateJun 23, 2004

Food for thought

A study using FDG-PET imaging found that brain metabolic activity increases in response to food stimulation, making it harder for those more sensitive to food to diet. The findings may lead to innovative treatment options for eating disorders.

SourceSociety of Nuclear Medicine and Molecular Imaging·DateJun 23, 2004

Study sheds new light on genetic risk for Parkinson's disease

Researchers found a moderate association between the APOE-2 gene and an increased risk of developing Parkinson's disease, with a 20% higher chance. In contrast, the APOE-4 gene was not linked to Parkinson's disease, contrary to its established role in Alzheimer's risk.

SourceUniversity of North Carolina Health Care·JournalNeurology·DateJun 23, 2004
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.

Long history of missed opportunities plague Medicare prescription drug benefit

Despite decades-long demands for a prescription drug benefit, lawmakers prioritized hospital services due to ideological conflicts and divided government. The new program faces similar economic and political challenges, with beneficiaries still facing significant out-of-pocket costs.

SourceJohns Hopkins Bloomberg School of Public Health·JournalMilbank Quarterly·DateJun 23, 2004

Hospital standards for high-risk surgeries save lives

A U-M study found that hospitals meeting Leapfrog quality standards for high-risk surgeries can save thousands of lives. Implementing these standards would reduce mortality rates for procedures like open heart surgery and angioplasty.

SourceMichigan Medicine - University of Michigan·JournalSurgery·DateJun 23, 2004

Clinical judgement still counts strongly alongside genetic testing

A one-year study found that specialists in dysmorphology are recognized by their peers for knowledge and authority, despite the increasing use of genetic testing. Laboratory tests do not replace clinical expertise, but rather complement it with techniques such as photographs and family trees.

SourceEconomic & Social Research Council·DateJun 23, 2004

People cocooning more, says study

A study by University of Toronto PhD student Glenn Stalker found that Canadians spent 34% of their spare time alone at home in 1998, up from 28% in 1986. Time spent with friends and family at home also decreased by five percent during the same period.

SourceUniversity of Toronto·DateJun 23, 2004
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.

'Mighty mouse' gene works the same way in people

Researchers found a naturally occurring mutation in a child's myostatin gene, resulting in twice the normal muscle mass. The discovery provides hope for agents blocking myostatin activity to increase muscle mass in humans.

SourceJohns Hopkins Medicine·JournalNew England Journal of Medicine·DateJun 23, 2004

As stem-cell debate heats up, public still uninformed and undecided

A recent study found that the public's opinions on stem-cell research are heavily influenced by poll questions and messaging, with support for embryonic research being lower than expected. The study suggests that the debate is ongoing, with supporters seeking to capitalize on recent events like Ronald Reagan's death.

SourceOhio State University·JournalPublic Opinion Quarterly·DateJun 22, 2004

The space simulator –– modeling the universe on a budget

The Space Simulator, a $500,000 Beowulf cluster, has achieved remarkable performance in astrophysics simulations, calculating the evolution of the Universe and studying massive star explosions. Its low cost and scalability make it an ideal tool for specific research applications.

SourceDOE/Los Alamos National Laboratory·JournalMonthly Notices of the Royal Astronomical Society·DateJun 22, 2004
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.

Rapid urbanization in China warming region's climate faster than other areas

A new study by Georgia Institute of Technology researchers found that China's rapid urbanization has led to a significant increase in the region's surface temperature, with a mean rise of 0.09 degrees Fahrenheit per decade since 1979. The nighttime low temperatures have also risen faster than daytime high temperatures, resulting in an ...

SourceGeorgia Institute of Technology Research News·JournalProceedings of the National Academy of Sciences·DateJun 22, 2004

Jefferson researchers develop microchip to track genetic signature of cancer and normal tissue

Researchers at Thomas Jefferson University have developed a microarray chip that can track the genetic signature of cancer and normal tissue by analyzing miRNA gene expression patterns. This technology has the potential to provide new targets for drug development and improve our understanding of cancer phenotypes.

SourceThomas Jefferson University·JournalProceedings of the National Academy of Sciences·DateJun 22, 2004

Energy conservation targets hit by notions of 'comfort'

A study found that people increasingly expect standardised temperatures and levels of ventilation, driving industry trends towards air conditioning. Design decisions early on shape future comfort regimes, suggesting a need for changes throughout the design process to promote sustainable environments.

SourceEconomic & Social Research Council·DateJun 22, 2004

UK small firms pay lip service to green issues

A study found that UK small firms often prioritize short-term gains over sustainability, with many believing it's not a priority for customers. The research suggests regulatory measures may be necessary to drive change within the sector.

SourceEconomic & Social Research Council·DateJun 22, 2004

PET provides non-invasive index of carotid plaque inflammation

Researchers discovered a correlation between FDG uptake in PET scans and degree of plaque inflammation in patients with moderate to high-grade carotid stenoses. The study's findings offer hope for improving stroke risk prediction and developing new plaque-stabilizing drugs.

SourceSociety of Nuclear Medicine and Molecular Imaging·DateJun 22, 2004
Kestrel 3000 Pocket Weather Meter

Kestrel 3000 Pocket Weather Meter measures wind, temperature, and humidity in real time for site assessments, aviation checks, and safety briefings.

NCAR releases new version of premier global climate model

The Community Climate System Model version 3 (CCSM3) predicts higher global temperatures if societies continue to emit large quantities of carbon dioxide. With improved accuracy, CCSM3 will be used to study climate patterns and chemical processes, shedding light on the impacts of climate change.

SourceNational Center for Atmospheric Research/University Corporation for Atmospheric Research·DateJun 22, 2004
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.

To understand innate immunity, silence the genome

Researchers Edan Foley and Patrick O'Farrell silenced over 7,000 Drosophila genes to investigate the Immune deficiency pathway, revealing new molecules involved in signaling. Their findings provide insight into complex molecular interactions underlying innate immunity.

SourcePLOS·JournalPLOS Biology·DateJun 22, 2004

UW Health Sports Medicine Center weighs in on body fat

A new study by UW Health Sports Medicine Center uses a four-component model to measure body composition and predict minimum weight for athletes. The findings have important implications for high school and college wrestlers, as well as the national fight against pediatric obesity.

SourceUniversity of Wisconsin-Madison·JournalMedicine & Science in Sports & Exercise·DateJun 22, 2004

Web searchers don't tune in with radio buttons

A study analyzing 3 million records from Alta Vista in 2002 found that consumers who used the interface had fewer queries per session and used fewer terms per query. The researchers suggest that radio buttons can help with information overload, but widespread adoption is hindered by technical issues and lack of individual site use.

SourcePenn State·DateJun 22, 2004
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.

Inadequate vaccines can help breed more vicious malaria strains

A laboratory-based study suggests that inadequate vaccines could lead to the emergence of more virulent malaria strains, potentially making them more dangerous to non-immunized populations. The research found that immunity accelerates the evolution of virulence in malaria parasites, even after mosquito transmission.

SourcePLOS·JournalPLOS Biology·DateJun 22, 2004

Floods policy is more than a knee-jerk response to crisis

Research finds that flood policy shifts are often driven by prevailing attitudes, technological resources and social values, not just crisis responses. Policymakers must consider these complex influences when planning for future events.

SourceEconomic & Social Research Council·DateJun 22, 2004

Use of estrogen does not reduce risk of dementia in older women

Research suggests that estrogen therapy does not reduce the risk of dementia in older women. The study found a 76% increased risk for probable dementia among those taking estrogen compared to placebo. Hormone therapy also increased the risk of mild cognitive impairment and decline in global cognitive function.

SourceJAMA Network·JournalJAMA·DateJun 22, 2004
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.

Next best thing: wood chip bedding for cattle

Researchers found that wood chip bedding had less nitrogen loss during composting, reducing volatile losses and improving air quality. Greenhouse gas emissions were similar to those of traditional straw bedding, making it a viable option for beef cattle.

SourceAmerican Society of Agronomy·JournalJournal of Environmental Quality·DateJun 22, 2004

Brick chimneys can double as strong-motion sensors in earthquakes

A new study suggests the Seattle fault played a role in causing damage to unreinforced brick chimneys in West Seattle and Bremerton after the 2001 earthquake. The research found that areas with heavy chimney damage experienced stronger shaking, indicating the fault may have acted as a megaphone to amplify seismic waves.

SourceUniversity of Washington·JournalBulletin of the Seismological Society of America·DateJun 22, 2004

Researchers induce temporary blindness to learn more about vision

Researchers induced temporary blindness in six volunteers with normal vision to study how the brain processes visual information for basic eye movements. The results show that part of the older visual system still functions by encoding visual information unconsciously.

SourceRice University·JournalProceedings of the National Academy of Sciences·DateJun 22, 2004

Controlling ADHD

Researchers used SPECT imaging to measure dopamine transporter binding in 18 adult ADHD patients. Those with high levels of binding showed significant improvement on Ritalin, while those with reduced binding did not respond to the drug.

SourceSociety of Nuclear Medicine and Molecular Imaging·DateJun 22, 2004
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.

Common 'signature' found for different cancers

Researchers found a common genetic signature consisting of 67 genes that are abnormally expressed in all cancers. These genes are involved in cell cycle and proliferation, making the discovery logical despite its difficulty.

SourceJohns Hopkins Medicine·JournalProceedings of the National Academy of Sciences·DateJun 22, 2004

Seafloor surface geometry may determine volcanic activity

Scientists at Columbia University's Lamont Doherty Earth Observatory have made new discoveries about the formation of underwater mountains along the Mid-Ocean Ridge. They found that the height and width of these mountains are highly correlated to the direction the ridge and connecting plates move across the planet's surface.

SourceColumbia Climate School·JournalNature·DateJun 22, 2004

Infertility treatment affects oral health

A study suggests that women undergoing infertility treatment who have periodontal disease may experience higher levels of gingival inflammation and bleeding, which could impact the success of fertility treatments like ovulation induction medication. Maintaining good oral hygiene is crucial to prevent these issues.

SourceAmerican Academy of Periodontology·JournalJournal of Periodontology·DateJun 22, 2004

Wireless nanocrystals efficiently radiate visible light

Researchers developed wireless nanocrystals that emit visible light by pumping them with a nearby quantum well, improving efficiency over traditional fluorescent bulbs. The process produces white light through varying the size of quantum dots, paving the way for more efficient white-light-emitting diodes.

SourceDOE/Sandia National Laboratories·JournalNature·DateJun 22, 2004
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.