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Science News for July 25, 2005


M.D.-Ph.D. student wins Hertz fellowship

Gwen Hoben, a M.D.-Ph.D. student at Rice University, has won the highly competitive Hertz fellowship to pursue her research in tissue engineering. The award provides funding for tuition and fees, as well as a $28,000 stipend, giving her more flexibility to explore scientific questions.

SourceRice University·DateJul 25, 2005

Posting and lurking

A study by Ann Schlosser found that reading negative reviews triggers concerns among posters about social outcomes, causing them to lower their ratings. In contrast, lurkers' private attitudes did not differ from those of posters.

SourceUniversity of Chicago Press Journals·JournalJournal of Consumer Research·DateJul 25, 2005

Ocean spray lubricates hurricane winds

A new study reveals that ocean spray plays a crucial role in lubricating the swirling winds of hurricanes and cyclones. The researchers found that large water droplets kicked up by rough seas can inhibit turbulence, allowing winds to build to speeds approaching 200 miles per hour.

SourceUniversity of California - Berkeley·JournalProceedings of the National Academy of Sciences·DateJul 25, 2005
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.

Study on female twins finds occupational class influences adult health, above early life conditions

A Harvard study found that adult occupational class has a significant impact on health outcomes, even after accounting for early childhood conditions and education level. Working-class twins were more likely to experience high blood pressure, cholesterol levels, and lower self-rated health compared to their professional counterparts.

SourceHarvard T.H. Chan School of Public Health·JournalPLOS Medicine·DateJul 25, 2005

Spaced out

The human brain employs complex responses for recollection, making it challenging to optimize advertising effectiveness. Research suggests that varying spacing repetitions can strengthen memory traces and improve recall.

SourceUniversity of Chicago Press Journals·JournalJournal of Consumer Research·DateJul 25, 2005

Improved statistical tools reveal many linked loci

Researchers have developed a new statistical method to identify linked genomic loci influencing gene expression in yeast, revealing 37% of gene expression traits link to two loci. The technique bypasses overwhelming computations and provides insights into the genetic basis of complex traits.

SourcePLOS·JournalPLOS Biology·DateJul 25, 2005
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.

Endangered North Atlantic right whale study says population in crisis

The North Atlantic right whale population is in a state of crisis, with 50 whales reported dead since 1986, mainly from human activities like ship collisions and entanglement in fishing gear. To prevent extinction, researchers recommend emergency measures such as reducing ship speeds and eliminating fixed fishing gear.

SourceWoods Hole Oceanographic Institution·JournalScience·DateJul 25, 2005

Church impacts political activism among black Americans, expert says

Research finds that exposure to political messages within churches increases protest behaviors among black people without a college education or those not part of secular organizations. Church participation does not significantly impact involvement in protests, but rather secular organization membership and education do.

SourceKansas State University·JournalSocial Forces·DateJul 25, 2005

Stem cell therapy successfully treats heart attack in animals

Researchers at Johns Hopkins Medicine have successfully treated heart attacks in animals using adult mesenchymal stem cells. The goal is to develop a widely applicable treatment to repair and reverse heart muscle damage caused by infarction.

SourceJohns Hopkins Medicine·JournalProceedings of the National Academy of Sciences·DateJul 25, 2005
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.

New method shows it is possible to grow bone for grafts within a patient's body

Researchers at Vanderbilt University have created a new approach to tissue engineering that allows for the growth of predictable volumes of bone on demand. This method involves creating a 'bioreactor' space under the periosteum, a thin outer layer covering long bones, and filling it with a gel containing calcium to stimulate bone growth.

SourceVanderbilt University·JournalProceedings of the National Academy of Sciences·DateJul 25, 2005

Cassini reveals Saturn's eerie-sounding radio emissions

Scientists have discovered eerie-sounding radio emissions from Saturn's auroras using Cassini spacecraft data. The study provides high-resolution measurements allowing audio recordings of the radio waves, offering clues about the source of the emissions.

SourceAmerican Geophysical Union·JournalGeophysical Research Letters·DateJul 25, 2005

Possible exposure to nerve agents and brain cancer deaths in Gulf War veterans

A recent study suggests that Gulf War veterans may be at a greater risk of developing brain cancer, potentially linked to exposure to nerve agents during the conflict. The National Academies of Sciences, Engineering, and Medicine report highlights the need for further research into this potential health consequence.

SourceNational Academies of Sciences, Engineering, and Medicine·JournalAmerican Journal of Public Health·DateJul 25, 2005
Apple iPhone 17 Pro

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

Using nanoparticles, in vivo gene therapy activates brain stem cells

University at Buffalo scientists developed nanoparticles that delivered genes to adult brain stem/progenitor cells in vivo with no observable toxic effect. The technique may allow repairing brain cells damaged by disease, trauma, or stroke. This breakthrough demonstrates the potential for non-viral vectors in gene therapy.

SourceUniversity at Buffalo·JournalProceedings of the National Academy of Sciences·DateJul 25, 2005

New study reports the risk perceptions of natural vs 'medicalized' childbirth

A new study explores how consumers perceive risks in natural vs medicalized childbirth, revealing cultural anxieties over technology and loss of autonomy. The research highlights the struggles consumers face when approaching childbirth and the risks associated with both natural and medicalized methods.

SourceUniversity of Chicago Press Journals·JournalJournal of Consumer Research·DateJul 25, 2005
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.

Multiple genetic 'flavors' may explain autism

Recent studies suggest that multiple rare mutations within a single gene may increase risk for autism. The SERT gene regulates brain levels of serotonin, which is involved in various biological processes and has been found to be elevated in about 25% of people with autism. SSRIs have improved some symptoms, leading scientists to propos...

SourceVanderbilt University Medical Center·JournalProceedings of the National Academy of Sciences·DateJul 25, 2005

Identification of a protein important for Hepatitis B replication

Researchers have identified a protein, heterogeneous ribonucleoprotein K (hnRNP K), that plays a crucial role in the replication of the Hepatitis B virus. This discovery offers new therapeutic opportunities by targeting human proteins involved in viral replication, providing hope for the treatment of chronic Hepatitis B infections.

SourcePLOS·JournalPLOS Medicine·DateJul 25, 2005

Hospital experience and nursing improve cancer surgery outcome

Researchers found that hospitals performing over 10 cystectomies per year had statistically significant lower mortality and morbidity rates. Additionally, hospitals with a high nurse-to-patient ratio reduced post-operative mortality by more than 50 percent regardless of the hospital's cystectomy volume.

SourceWiley·JournalCancer·DateJul 25, 2005
Meta Quest 3 512GB

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

Coral reef fish larvae settle close to home

Researchers tracked coral reef fish larvae using DNA paternity analysis and marking with tetracycline, finding that one third settled within a two-hectare area near their birth site. This study documents the smallest scale of dispersal for a marine fish species, providing insights into sustainable marine reserve management.

SourceCell Press·JournalCurrent Biology·DateJul 25, 2005

Immigrants spend half as much on health care as native-born Americans

A nationwide study found that immigrants spend half as much on healthcare as native-born Americans, with many receiving lower levels of care. Immigrant children receive significantly less care in doctors' offices and emergency rooms compared to U.S.-born children.

SourceUniversity of Southern California·JournalAmerican Journal of Public Health·DateJul 25, 2005

Breast biopsy rates remain steady despite introduction of new technology

A Mayo Clinic study found that breast biopsy utilization rates remained stable over a 12-year period despite the introduction of new technologies. The study also showed that the ratio between malignant and benign results remained stable at one malignancy for every 2.2 benign results.

SourceJAMA Network·JournalArchives of Internal Medicine·DateJul 25, 2005

Adult socioeconomic position and health of twins

Identical twins who differed in social class had significantly higher blood pressure and LDL cholesterol levels compared to their professional counterparts. In contrast, educational attainment differences did not impact health status. This study provides insight into the additional effect of adult experiences on adult health.

SourcePLOS·JournalPLOS Medicine·DateJul 25, 2005
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.

Enlisting genomics to understand flu evolution

A large-scale genomic study found that co-circulating minor variants of the flu virus can exchange genes and create novel, epidemiologically significant strains. This process can lead to an epidemic with just one or two more mutations, challenging the traditional view of epidemic flu.

SourcePLOS·JournalPLOS Biology·DateJul 25, 2005

Low colon cancer screening rates leaves a million New Yorkers at risk

A study of 9,802 NYC residents found that nearly half are not undergoing timely screening for colon cancer, with lower uptake among African-Americans, women, and those with limited access to healthcare. The researchers emphasize the need for targeted interventions to increase screening rates in poor and uninsured communities.

SourceWiley·JournalCancer·DateJul 25, 2005

What is the best treatment for postherpetic neuralgia?

The study highlights the need for personalized treatment approaches in postherpetic neuralgia. A quantitative systematic review of analgesic therapy found that treatments only worked in selected patients, suggesting a range of underlying mechanisms causing pain in different individuals.

SourcePLOS·JournalPLOS Medicine·DateJul 25, 2005

Fragile X-related disorder difficult to diagnose; guidelines suggested in new study

A new study suggests that men over 50 with unexplained ataxia or tremors should undergo testing to check if they have the FMR1 gene, which causes Fragile X-related disorder. The guidelines were developed after a multi-center study found 56 people had received prior diagnoses of other conditions before being correctly diagnosed with FXTAS.

SourceAmerican Academy of Neurology·JournalNeurology·DateJul 25, 2005
Fluke 87V Industrial Digital Multimeter

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

Name your price

Researchers Sucharita Chandran and Vicki Morwitz found that participative pricing affects consumers' goal-related focus, influencing their cognitions and purchasing decisions. By measuring personal characteristics like perceived control, marketers can tailor offerings to match different consumer types.

SourceUniversity of Chicago Press Journals·JournalJournal of Consumer Research·DateJul 25, 2005

Genetic links could unlock clues to leading cause of blindness

Studies have pinpointed a chromosome region and genetic markers for macular degeneration in humans and rhesus monkeys. This breakthrough could lead to better treatments and even a cure by studying the disease's progression in monkeys, which age faster than humans.

SourceUniversity of Florida·JournalExperimental Eye Research·DateJul 25, 2005

Corn fungus is nature's master blaster

Biologists discovered a common corn fungus can launch its spores at incredible speeds of up to 80 miles an hour. The spore travels only two-tenths of an inch before landing due to atmospheric drag, which plays a significant role in the physics of scaling.

SourceDuke University·JournalFungal Genetics and Biology·DateJul 25, 2005

Blink, and the brain misses it

Researchers used a novel method to monitor brain activity during blinking, finding that brain areas responsible for visual input are temporarily suppressed. This neural mechanism may help prevent the brain from becoming aware of the eyelid sweeping down over the pupil during a blink.

SourceCell Press·JournalCurrent Biology·DateJul 25, 2005
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.

Armed forces search for ways to improve survival in the combat zone

A new report outlines recommendations for reviewing advanced first-responder resuscitation fluids and adjunct therapies. The study identifies promising products with potential to improve treatment of life-threatening hemorrhage, and provides guidance on product investigations, data inclusion, and funding.

SourceLife Sciences Research Office·DateJul 25, 2005

Hormone patch may provide some increase in sexual desire in menopausal women

A 24-week clinical trial found that testosterone patches significantly improved sexual desire and frequency of satisfying sexual activity in surgically menopausal women with hypoactive sexual desire disorder. The middle dosage group showed a 67% increase in questionnaire scores for sexual desire compared to the placebo group.

SourceJAMA Network·JournalArchives of Internal Medicine·DateJul 25, 2005

Cassini reveals Saturn's eerie-sounding radio emissions

Researchers Bill Kurth and Don Gurnett used Cassini data to study Saturn's kilometric radiation, a phenomenon similar to Earth's northern lights. The higher resolution instrument provided detailed information on the spectrum and its variability, shedding new light on the radio emissions above Saturn's auroras.

SourceUniversity of Iowa·JournalGeophysical Research Letters·DateJul 25, 2005
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.

Gamble or play it safe?

The study found that consumers' risk preferences are contingent on their self-view, with interdependent self-view consumers choosing less risky alternatives. The researchers suggest that investors can infer their past choices by examining their current decision-making patterns.

SourceUniversity of Chicago Press Journals·JournalJournal of Consumer Research·DateJul 25, 2005

FSU food scientist is lead scholar in trade

Yun-Hwa Peggy Hsieh's patented immunoassay assays detect BSE and Scrape diseases in animal feeds, improving trade relations with China. Her Reveal Ruminant test kit has been widely adopted globally.

SourceFlorida State University·DateJul 25, 2005

Toxins drove evolution of human taste sense, global study reveals

A global study found that the ability to discern bitter flavors likely offered a survival advantage by protecting ancient people from poisonous foods. The researchers also discovered that specific genetic variants confer increased sensitivity to toxins and beneficial compounds, with potential implications for human health.

SourceDuke University Medical Center·JournalCurrent Biology·DateJul 25, 2005
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.

Deep thinking: Scientists sequence a cold-loving marine microbe

Researchers discover key biochemical tools that cold-adapted bacteria use to survive in subzero temperatures, including cell membranes packed with polyunsaturated fatty acids and protective solutes inside cells. The study also reveals potential industrial applications for cold-hardy enzymes found in the Colwellia psychrerythraea genome.

SourceThe Institute for Genomic Research·JournalProceedings of the National Academy of Sciences·DateJul 25, 2005

Patients learn more facts from videos but need contact with doctor to soothe their anxiety

A study by researchers at the University of Michigan Health System found that patients learned more facts from educational videos than from their doctors during a clinic visit. However, the video was less effective in reducing anxiety and stress levels compared to face-to-face interactions with their doctors.

SourceMichigan Medicine - University of Michigan·JournalJournal of the American Academy of Dermatology·DateJul 25, 2005