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Science News Archive December 2002 - Page 6


Page 6 of 7

Higher cost sharing reduces plans' drug expenditures, but boosts enrollee costs

A study of Medicare prescription benefit plans found that higher copayments reduce the use of brand-name drugs and lower overall plan costs, but also increase enrollee out-of-pocket expenses. The research suggests that combining cost-sharing strategies with other cost-containment mechanisms can help balance these competing effects.

SourceHealth Affairs·JournalHealth Affairs·DateDec 4, 2002

The mouse genome and the measure of man

The completed mouse genome provides a powerful research tool to extract meaning from the human genome sequence. It allows scientists to recognize functionally important regions in the human genome by virtue of their conservation through evolution.

SourceNIH/National Human Genome Research Institute·JournalNature·DateDec 4, 2002
Apple iPhone 17 Pro

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

EMBO supports restart of six female scientists at the bench

The EMBO Restart Programme supports six female scientists who will be returning to their labs after taking career breaks to have families. The programme aims to counteract losses to science and research caused by women leaving the workforce.

SourceEuropean Molecular Biology Laboratory·DateDec 4, 2002

NIAMS funds multiple grants in heritable disorders of connective tissue

The National Institutes of Health's NIAMS has funded eight research projects to better understand and treat heritable disorders of connective tissue. These conditions, such as osteogenesis imperfecta and Ehlers-Danlos syndrome, affect millions of Americans and have few effective treatments.

SourceNIH/National Institute of Arthritis and Musculoskeletal and Skin Diseases·DateDec 4, 2002

Smoking reduction strategies show success

Studies suggest that smokers can reduce their smoking by using various strategies, including nicotine replacement devices and behavioral interventions. Researchers found that those who used multiple strategies smoked fewer cigarettes per day compared to those who relied on a single method.

SourceCenter for Advancing Health·JournalNicotine & Tobacco Research·DateDec 4, 2002

Cool sounds

Researchers at Penn State have developed a small 'thermoacoustic refrigerator' that uses sound energy to generate cooling, potentially replacing chemical refrigerants. The device operates near resonance frequencies and achieves efficiencies as high as 89% without lubricants or sliding seals.

SourceAmerican Institute of Physics·DateDec 4, 2002
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.

Toyota delivers first fuel-cell car in US to UC Davis

UC Davis Institute of Transportation Studies will conduct the first public evaluation of American consumer reactions to fuel cells, studying awareness, knowledge, and attitudes towards hydrogen fuel-cell vehicles. The program aims to identify early markets, educate communities, and design consumer-friendly refueling stations.

SourceUniversity of California - Davis·DateDec 4, 2002

Chilling with sound

Researchers at Penn State have developed a compact freezer case using sound waves to substitute chemical refrigerants, reducing greenhouse gas emissions. The Navy has funded the project and is exploring its potential for distributed cooling systems on carriers.

SourceOffice of Naval Research·DateDec 4, 2002
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.

UV radiation may not be a factor in amphibian declines

A recent study suggests that dissolved organic matter in water absorbs UV-B, protecting 85% of amphibian habitats. The timing of breeding also plays a crucial role, with early breeding reducing UV-B exposure in certain regions.

SourceU.S. Geological Survey·JournalEcology·DateDec 3, 2002

It may take a mouse to understand the behavior of 'jumping genes'

Researchers developed a mouse model to study L1 retrotransposition, a process that can cause mutations in genes. The study found that the mouse model mimics human L1 behavior and could aid in understanding how genes function and potentially lead to genetic therapies.

SourceUniversity of Pennsylvania School of Medicine·JournalNature Genetics·DateDec 3, 2002

Alternative treatment for secretory diarrhea linked to the cystic fibrosis gene

Researchers identified a new compound, thiazolidinone, that effectively inhibits CFTR-mediated chloride secretion, reducing excess intestinal fluid secretion in mice with secretory diarrhea. The study's findings suggest that this compound may be useful in treating secretory diarrhea linked to the cystic fibrosis gene.

SourceJCI Journals·JournalJournal of Clinical Investigation·DateDec 3, 2002
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.

OHSU researchers make key immune system discovery

OHSU researchers identified a critical role of major histocompatibility complex (MHC) molecules in training T-cells to combat infections. The discovery may lead to the development of more effective vaccines and immune system boosting strategies for susceptible populations, such as the elderly.

SourceOregon Health & Science University·JournalScience·DateDec 3, 2002

Study finds seasonal differences affect Brahman bull sexual maturity

A study by Dr. Ron Randel found that fall-born Brahman bulls take longer to reach sexual maturity than spring-born bulls, delaying breeding by up to 39 days. This delay has little impact on long-term reproductive efficiency, but affects commercial cattle producers who buy young bulls for early use.

SourceTexas A&M AgriLife Communications·DateDec 3, 2002

Other highlights of the December 4 JNCI

Researchers developed new compounds to optimize apoptosis-inducing ability of celecoxib, a COX-2 inhibitor. They found that the structural features required for apoptosis induction differ from those required for COX-2 inhibition.

SourceJournal of the National Cancer Institute·JournalJNCI Journal of the National Cancer Institute·DateDec 3, 2002

Climate change will affect carbon sequestration in oceans, scientists say

Climate change affects ocean's sequestration capacity, with the Atlantic Ocean proving more effective at storing carbon dioxide. The impact is most pronounced in the Atlantic, where rising sea surface temperatures slow down thermohaline circulation and reduce mixing, exacerbating the problem.

SourceUniversity of Illinois at Urbana-Champaign, News Bureau·DateDec 3, 2002

CWRU researcher reveals differences in high-altitude living

A CWRU anthropologist has discovered a distinct pattern of human adaptation to high-altitude hypoxia among the Ambaras people in Ethiopia, who have normal sea-level hemoglobin and oxygen saturations. This finding suggests that there are three patterns of adaptation to high-altitude living among indigenous populations.

SourceCase Western Reserve University·JournalProceedings of the National Academy of Sciences·DateDec 3, 2002
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.

Portion size matters: Given too much, we eat it

A study published in the American Journal of Clinical Nutrition found that larger portion sizes result in consuming 30% more calories, regardless of individual eating habits. This suggests that portion control is crucial for weight management and suggests alternatives like low-calorie vegetables and broth-based soups.

SourcePenn State·JournalAmerican Journal of Clinical Nutrition·DateDec 3, 2002

Diabetic gene linked to heart disease

A new genetic test can identify patients with diabetes at high risk for heart disease, potentially saving lives through early intervention. Researchers analyzed the haptoglobin gene in a population-based study and found that individuals with one form of the gene were five times more likely to develop heart disease.

SourceAmerican Society for Technion - Israel Institute of Technology·JournalJournal of the American College of Cardiology·DateDec 3, 2002

JCI Table of Contents, December 2, 2002

Researchers have discovered that angiopoietin-1 can restore faulty blood vessel architecture in mice by promoting sprouting, survival, and stability of new vessels. This study highlights the importance of pericytes in maintaining normal vessel stability and may lead to new treatments for diseases like diabetic retinopathy.

SourceJCI Journals·JournalJournal of Clinical Investigation·DateDec 3, 2002

Birth control pills associated with breast cancer risk in BRCA1 mutation carriers

A study found that long-term oral contraceptive use is associated with a 33% increase in breast cancer risk among women with BRCA1 mutations, particularly those who started using contraceptives before age 30. In contrast, no significant increase in breast cancer risk was observed in women with BRCA2 mutations.

SourceJournal of the National Cancer Institute·JournalJNCI Journal of the National Cancer Institute·DateDec 3, 2002
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.

Additive-free cigarettes may pack a more toxic tobacco punch

A recent study found that alternative cigarettes like bidis and additive-free tobacco can deliver high levels of nicotine and other toxins, similar to conventional cigarettes. The study's results suggest that these products may pose a significant health risk to adolescents and young adults.

SourceCenter for Advancing Health·JournalNicotine & Tobacco Research·DateDec 3, 2002

Restoration of faulty blood vessel architecture by angiopoietin-1

Researchers developed a system to study blood vessel development without mural cells, revealing that angiopoietin-1 partially restores large vessel structure. The study suggests Ang1 is crucial for normal vessel stability and highlights the importance of pericytes in maintaining vascular networks.

SourceJCI Journals·JournalJournal of Clinical Investigation·DateDec 3, 2002

Scientists find new way to assess where cotton-killing pests develop

Researchers used stable isotope assessment to determine that most late-season moths in the Cotton Belt are developing on non-cotton plants like corn, providing a major refuge for H. zea moths and helping to control pesticide-resistant pests.

SourceNorth Carolina State University·JournalProceedings of the National Academy of Sciences·DateDec 3, 2002
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.

UB engineer develops novel method for assembly of nanoparticles

Researchers develop a novel method to assemble nanoparticles using non-uniform AC electric fields, allowing for the creation of ordered structures with desired properties. This process can be used to manufacture nanoscale tools and devices, including sensors and photonic devices.

SourceUniversity at Buffalo·JournalElectrophoresis·DateDec 3, 2002

Promising biomarker for melanoma is identified

A study published in the Journal of the National Cancer Institute found that higher levels of the molecule HDM2 are associated with a better prognosis in patients with melanoma. Patients with high levels of HDM2 lived significantly longer after treatment than those with low levels, even ten years after diagnosis.

SourceNYU Langone Health / NYU Grossman School of Medicine·JournalJNCI Journal of the National Cancer Institute·DateDec 3, 2002

New theory explains economic growth in terms of evolutionary biology

A new theory proposes that evolutionary pressures drove human traits beneficial to economic growth, such as valuing high-quality offspring. The transition from hunter-gatherer tribes to nuclear families with intergenerational links accelerated this process.

SourceBrown University·JournalThe Quarterly Journal of Economics·DateDec 2, 2002
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.

Ulcer-causing pathogen uses hydrogen for energy

The research found that Helicobacter pylori can use hydrogen as an energy source, increasing its colonization in mice. The study showed that mice stomachs contained sufficient hydrogen to support the growth of H. pylori.

SourceNorth Carolina State University·JournalScience·DateDec 2, 2002

Smart, but do they work together?

Researchers have developed a reusable multi-agent infrastructure called RETSINA, which enables teams of intelligent agents to work together autonomously. This allows for more efficient collaboration among humans and agents in joint mission planning and execution.

SourceOffice of Naval Research·DateDec 2, 2002
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.

Annals of Internal Medicine, tip sheet, December 3, 2002

Recent studies have found that hospitalists provide better patient outcomes in terms of reduced costs, shorter hospital stays, and lower short-term mortality rates compared to non-hospitalist physicians. The benefits of hospitalist care became evident only after the second year of both studies, highlighting the importance of experience...

SourceAmerican College of Physicians·JournalAnnals of Internal Medicine·DateDec 2, 2002

Even green pond scum can suffer from jet lag

Researchers have successfully determined the structure of a biological clock protein called KaiC in blue-green algae, shedding light on internal clock mechanisms. The protein's ring-like hexagonal structure suggests it interacts directly with DNA, potentially regulating gene expression and controlling the wake-sleep cycle.

SourceVanderbilt University·JournalProceedings of the National Academy of Sciences·DateDec 2, 2002

Geophysicist develops method for finding underground contaminants

A geophysicist has developed a cost-effective method for finding underground contaminants by measuring voltage between metal spikes inserted into the ground. The technique shows promise in detecting organic compounds like cancer-causing substances that don't conduct electricity, potentially streamlining remediation processes.

SourceUniversity of Rhode Island·DateDec 2, 2002
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.

Mapping with math

Arjun Heimsath and Hany Farid developed a new method to create 3D models of remote regions using 2D photographs, making it easier for researchers to predict landslides and erosion rates. The technique has limitations, such as requiring clear images of the ground surface and a good point of view.

SourceDartmouth College·DateDec 2, 2002

Researchers find genes connected to seasonal reproductive clock in hamsters

A study by Ohio State University researchers found three genes associated with regulating thyroid hormones in the hypothalamus, which controls the hamster's reproductive cycle. The genes were active in hamsters kept in both long and short days, enabling them to respond to seasonal changes.

SourceOhio State University·JournalProceedings of the National Academy of Sciences·DateDec 2, 2002

Search for sympathy uncovers patterns of brain activity

Researchers used PET scans to explore brain activity while watching actors tell stories with sad and neutral tones. The study found that brain regions associated with emotional processing were activated when the story content and actor's expression matched, but suppressed when they didn't.

SourceUniversity of Washington·JournalNeuropsychologia·DateDec 2, 2002
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.

UCR awards new scholarships in computer science, engineering, and mathematics

The University of California Riverside has awarded 40 new scholarships to academically talented students from low-income families. The scholarships aim to provide comprehensive support, including financial aid, academic excellence workshops, and career opportunities, to help students persist in their studies.

SourceUniversity of California - Riverside·DateDec 2, 2002

Better warheads through plastics

The Office of Naval Research developed a new warhead that combines kinetic energy with chemical reactions to destroy targets. The warhead uses advanced composite materials and has shown improved structural damage and lethal radius in testing.

SourceOffice of Naval Research·DateDec 2, 2002

Listening to music while working out helps people with severe lung disease

Research at Ohio State University found that listening to music while exercising increased walking distance by an average of 445 feet among patients with severe lung disease. The study suggests that music can help distract from physical symptoms and improve overall fitness levels, leading to better independence in daily activities.

SourceOhio State University·DateDec 2, 2002
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.

Felling antenna forests

The Office of Naval Research (ONR) is developing an Advanced Multi-Function Radio-Frequency Concept (AMRF-C) antenna aperture that can integrate radar and communications functions, reducing the need for separate antennas and increasing stealth.

SourceOffice of Naval Research·DateDec 2, 2002

Hospital-care specialists improve outcomes, reduce costs

A two-year study found that hospitalists reduced average patient stays by half a day, resulting in $782 per-patient cost savings. Hospitalists also achieved lower short-term mortality rates, specifically a 37% reduction in 30-day mortality.

SourceUniversity of Chicago Medical Center·JournalAnnals of Internal Medicine·DateDec 2, 2002

Fractals add new dimension to study of tiny electronics

Scientists created a new material that exhibits fractal behavior in its magnetic field, leading to the discovery of 'fractal cluster glass'. This phenomenon could revolutionize the design of electronic devices in the future, as smaller devices may no longer behave like traditional three-dimensional objects.

SourceOhio State University·JournalPhysical Review Letters·DateDec 2, 2002

American Thoracic Society Journal news tips for December (first issue)

Researchers studied patients' understanding of living wills, finding significant differences in interpretation, and found that certain ventilator modes can worsen sleep quality. Inspiratory muscle training also improved respiratory function in patients with severe COPD.

SourceAmerican Thoracic Society·JournalAmerican Journal of Respiratory and Critical Care Medicine·DateDec 2, 2002
Meta Quest 3 512GB

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

Caught sleeping: Study captures virus dormant in human cells

A team of scientists has developed a laboratory system to study the virus in its latent stage, discovering genes that may give it stealth capabilities. This could lead to the development of new drugs to clear the virus from infected individuals.

SourcePrinceton University·JournalProceedings of the National Academy of Sciences·DateDec 2, 2002

Infants go to school early on grammar

A Purdue University psychology professor's research reveals infants can comprehend words and grammar from a young age, defying the common notion of gradual learning. By analyzing infant responses to language experiments, Hollich's study shows that babies as young as 5 months old demonstrate surprising linguistic savvy.

SourcePurdue University·DateDec 2, 2002

Satellite images predict hantaviral transmission risk

Researchers used satellite data to identify environments associated with human risk of hantavirus infection, finding that woody plants dominated high-risk sites. The study provides a way to monitor the environment for infectious disease risks and better understand why outbreaks happen where they do.

SourceJohns Hopkins Bloomberg School of Public Health·JournalProceedings of the National Academy of Sciences·DateDec 2, 2002
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.