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Science News for March 24, 2004


Mouse model mimics real-world plague infection

Researchers have successfully tested a new plague vaccine in a real-world mouse model, showing promising results. The vaccine was tested in a natural transmission setting, where infected fleas fed on vaccinated mice, and showed protection against the disease.

SourceNIH/National Institute of Allergy and Infectious Diseases·JournalInfection and Immunity·DateMar 24, 2004

A&M researcher studying genes of mosquitoes

Researchers are cloning mosquito genes to understand the hormone-controlled mechanism of diuresis, a fast process by which mosquitoes excrete waste. This study aims to develop new, selective insecticides targeting the hormone receptor, potentially controlling vector-borne diseases like dengue fever.

SourceTexas A&M AgriLife Communications·JournalInsect Biochemistry and Molecular Biology·DateMar 24, 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.

First global approval for FOSRENOL (lanthanum carbonate)

FOSRENOL, a lanthanum carbonate-based treatment, has been approved for reducing phosphate risk in dialysis patients with end-stage renal failure. The treatment has shown effectiveness and well-tolerability in studies, improving bone disease outcomes.

SourceResolute Communications·DateMar 24, 2004

Is the future of the welfare state really a human rights issue?

A UK study suggests that working-age adults and social services professionals acknowledge people's interdependency and fundamental human rights, yet favor individual responsibility for support from the state. The Human Rights Act's impact on the welfare state is also explored.

SourceEconomic & Social Research Council·DateMar 24, 2004

Southern Californians commonly misinformed about beach water quality, study finds

A study found that California's beach warning system incorrectly notifies the public about coastal water quality up to 41% of the time. The research identified tidal outlets as major contributors to pollution along the shore, suggesting a need for improved warning systems and approaches to managing storm runoff.

SourceUniversity of California - Irvine·JournalEnvironmental Science & Technology·DateMar 24, 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.

Myosin mutant points to human origins

Researchers discovered a myosin gene mutation that correlates with anatomical changes in early hominid fossil record, including smaller jaw muscles and larger brain size. The mutation, estimated at 2.5 million years ago, may have lifted an evolutionary constraint on brain growth in early humans.

SourceUniversity of Pennsylvania School of Medicine·JournalNature·DateMar 24, 2004

Genetic mutation linked to infant lung disease

A genetic mutation in the ABCA3 gene is linked to severe surfactant deficiency in infants, leading to fatal lung disease. Researchers found mutations in 16 infants, with 15 dying from their illness, and discovered a potential mechanism for the defective transport of phospholipids critical for surfactant function.

SourceJohns Hopkins Medicine·JournalNew England Journal of Medicine·DateMar 24, 2004

New RNA libraries can selectively inactivate human genes

Researchers have created new RNA libraries that can selectively inactivate human genes, enabling efficient screening for genetic defects. The libraries, made widely available to the research community, will greatly aid in understanding human biology and disease.

SourceHoward Hughes Medical Institute·JournalNature·DateMar 24, 2004

Land cover changes affect US summer climate

Research found that changes in land cover, particularly vegetation, have impacted regional temperatures and precipitation in the US. Land cover changes produced a significant cooling effect of more than one degree Fahrenheit in parts of the Great Plains and Midwest.

SourceNASA/Goddard Space Flight Center·DateMar 24, 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.

Odorants enhance survival of olfactory neurons

Olfactory sensory neurons can adapt to odorant stimulation, but the ability to enhance long-term survival after stimulation has been unclear. Researchers found that odorants stimulate the Erk/MAP kinase/CREB pathway, leading to cell survival and dynamic long-term adjustment to sensory information.

SourceCell Press·JournalNeuron·DateMar 24, 2004

Study points to possible cause of asthma exacerbations

A study suggests that viral infections like RSV can increase the expression of Toll-4 receptors on airway cells, leading to a heightened response to endotoxin exposure and potentially causing asthma exacerbations. This increased sensitivity could also make airways more responsive to other environmental exposures.

SourceUniversity of Iowa·JournalJournal of Biological Chemistry·DateMar 24, 2004

Soft drinks not linked to decreased calcium intake

A study found that adolescent girls and boys drink fewer soft drinks than perceived, with an average of one can per day. Despite this, younger children and African-American children have lower calcium intakes. The study suggests increasing milk consumption and calcium supplements to improve dietary habits.

SourceVirginia Tech·JournalJournal of the American College of Nutrition·DateMar 24, 2004

Antibiotics in the environment

Researchers developed a simple method for ultra trace determination of chlortetracycline and tylosin antibiotics in animal manures and surface/ground waters. Tests showed high concentrations of these antibiotics in swine manure samples, highlighting potential environmental pollution risks.

SourceAmerican Society of Agronomy·JournalJournal of Environmental Quality·DateMar 24, 2004
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 benefits to newborns from federal ban on insecticides

Researchers measured blood levels of chlorpyrifos and diazinon in umbilical cords before and after the ban and found a significant reduction in birth weights and lengths in infants with high pesticide exposure. The study confirms developmental impact of insecticides on human health.

SourceNIH/National Institute of Environmental Health Sciences·JournalEnvironmental Health Perspectives·DateMar 24, 2004

The human brain and comparative judgments

A new study published in Neuron reveals that the brain processes continuous dimensions such as size and luminance in distributed regions of the cortex. The researchers observed that there is considerable overlap between local brain regions and no single region uniquely selective for one particular stimulus.

SourceCell Press·JournalNeuron·DateMar 24, 2004

Titania nanotube hydrogen sensors clean themselves

Researchers developed self-cleaning hydrogen sensors using titania nanotubes that can recover from contamination by exposing them to ultraviolet light. The sensors' photocatalytic properties allow for efficient removal of contaminants, enabling real-world applications with minimal sensor error.

SourcePenn State·JournalJournal of Materials Research·DateMar 24, 2004

Aeras partners with Crucell to develop TB vaccine

The collaboration aims to improve the BCG vaccine, which offers protection against serious forms of TB in childhood but loses efficacy over time. A new vaccine is crucial to combating the disease that kills over two million people globally per year.

SourceAeras·DateMar 24, 2004
Celestron NexStar 8SE Computerized Telescope

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

Martian mystery explained

Researchers found that heating and cooling alone can create spiral patterns on Mars, contrary to previous theories. The model suggests that differential melting and refreezing cause the spirals' unique shape and spacing.

SourceUniversity of Arizona·JournalGeology·DateMar 24, 2004

Workplace drinking and gender harassment linked

A study by Cornell University's R. Brinkley Smithers Institute found a significant link between workplace drinking and gender harassment. Women experienced a more-than-twofold increase in incidents of gender harassment when men consumed additional alcoholic drinks during work hours.

SourceCornell University·DateMar 24, 2004