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Science News for October 24, 2006


Imaging experts perform cardiac scans by remote control

A new software program developed by UCLA radiologists and Siemens Medical Solutions allows experts to operate MRI machines remotely via the Internet. The quality of remote scans was found to be superior to onsite scans performed by less experienced technologists, offering options for regions with limited medical staff and expertise.

SourceUniversity of California - Los Angeles·JournalRadiology·DateOct 24, 2006

Blood markers predict risk for recurrent stroke and mortality

Researchers at Columbia University Medical Center found that elevated inflammatory biomarkers, such as Lp-PLA2 and hs-CRP, are associated with increased risk of recurrent stroke and mortality after a first stroke. The study's findings may lead to the use of prophylactic treatments to reduce stroke risk in people with elevated biomarkers.

SourceColumbia University Irving Medical Center·JournalArchives of Internal Medicine·DateOct 24, 2006

The glutamate decarboxylase 1 gene may play a pivotal role in developing alcoholism

Researchers found a significant association between the GAD1 gene and the development of alcoholism in Han Taiwanese men. The study suggests that defects in GABA synthesis may contribute to increased alcohol consumption, leading to dependence. Further exploration of GABA's role in alcoholism may lead to new treatment strategies.

SourceAlcoholism: Clinical & Experimental Research·DateOct 24, 2006
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.

Early Bronze Age mortuary complex discovered in Syria

A recent discovery in Syria has uncovered an ancient mortuary complex containing human and animal remains, gold, and silver treasures. The site, dated to the third millennium B.C., suggests a royal cemetery with signs of ritual sacrifice, including infant and animal remains.

SourceJohns Hopkins University·DateOct 24, 2006

Soot from wood stoves in developing world impacts global warming more than expected

New measurements reveal that traditional cook stoves produce twice as much smoke particles as previously thought, leading to a significant impact on global climate change. The researchers found that these dark particles have a climate warming effect due to their ability to absorb solar energy and heat the atmosphere.

SourceAmerican Chemical Society·JournalEnvironmental Science & Technology·DateOct 24, 2006
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.

Alcoholism may cause decreased density of neurons in the orbitofrontal cortex

Researchers discovered a decrease in neuron density in the orbitofrontal cortex among alcoholics, which may lead to decision-making and emotional behavioral issues. The findings suggest that continued alcohol abuse results in irreversible neuronal loss, emphasizing the importance of stopping alcohol consumption.

SourceAlcoholism: Clinical & Experimental Research·DateOct 24, 2006

Genetic variation impacts aspirin's effectiveness in preventing colon cancer, Dartmouth study finds

A recent study by Dartmouth researchers found that individuals with a specific genetic variation in their ODC gene are more likely to benefit from aspirin use in preventing colon cancer. These individuals were 23% less likely to develop new adenomas and 49% less likely to develop more advanced lesions.

SourceDartmouth College·JournalJNCI Journal of the National Cancer Institute·DateOct 24, 2006
Apple iPhone 17 Pro

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

Killing brain tumors from within: A 'Trojan horse' approach

A team of researchers has developed a new method for targeting malignant brain tumors by inducing cancerous cells to commit suicide. The technique uses a molecule containing long, double-stranded RNA attached to epidermal growth factor (EGF) and delivered selectively to cells with high EGF receptors.

SourceThe Hebrew University of Jerusalem·JournalPLOS Medicine·DateOct 24, 2006

Significant amount of binge eating occurs in restaurants

A recent study published in Western Journal of Nursing Research found that about 30% of binges occur at restaurants, contradicting the perception that binge eating takes place in private. Restaurant eating habits contribute to the development of obesity, as large portion sizes and frequent dining out can lead to excessive calorie intake.

SourceSAGE·JournalWestern Journal of Nursing Research·DateOct 24, 2006

Childhood abuse can impact victims' adult relationships

A recent study found that victims of childhood abuse tend to transfer their feelings towards their abusive parent to new people, leading to negative reactions. This 'transference' can affect adult relationships and highlight the importance of understanding the long-term impact of childhood trauma.

SourceSAGE·JournalPersonality and Social Psychology Bulletin·DateOct 24, 2006

Viral marker of human migration suspect

Researchers found that some viruses, like the human polyomavirus JCV, may be evolving at higher rates than previously assumed. The virus is traditionally used as a genetic marker for human migration and evolution, but its reliability has been called into question by this new study.

SourcePenn State·JournalJournal of Virology·DateOct 24, 2006
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.

UAF anthropologists to study religion after socialism in Russia

Researchers at the University of Alaska Fairbanks are studying religiosity in northern Russia over the last two decades to understand how people deal with rapid social change. The project, led by Patty Gray, will explore the role of religion and spirituality in this context.

SourceUniversity of Alaska Fairbanks·DateOct 24, 2006

When is a supersolid not quite so super?

Researchers at Brown University use a kitchen table physics experiment to study supersolid helium, finding evidence of its behavior in 3 out of 13 trials. The team suggests that a layer of superfluid helium only a single molecule thick forms at grain boundaries, creating a path for movement through the solid.

SourceBrown University·JournalScience·DateOct 24, 2006
Meta Quest 3 512GB

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

Trotting with emus to walk with dinosaurs

Researchers used emus to decipher dinosaur tracks at the Red Gulch Dinosaur Tracksite in Wyoming. The birds' behavior revealed that dinosaurs likely stopped and observed their environment while walking, resolving a mysterious 'crossing over' track pattern.

SourceGeological Society of America·DateOct 24, 2006

The tyranny of suburbia: How changing places is still a very middle class thing

A study by Sheffield Hallam University found that middle class residents impose their tastes on the housing field, while working-class residents are limited to poorer areas. The 'tyranny of suburbia' is characterized by the dominance of middle class suburbanites, who are able to move up the housing chain through their economic means.

SourceEconomic & Social Research Council·DateOct 24, 2006

UA receives $3.5 million to improve advanced math education

The University of Arizona has received a $3.5 million grant from the National Science Foundation to improve advanced math education and train more professionals. The VIGRE program will vertically integrate mathematics training, increasing collaborations between students and faculty across different levels of training.

SourceUniversity of Arizona·DateOct 24, 2006
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.

New theory for mass extinctions

Scientists have proposed a new theory that combines deadly sudden catastrophes (pulses) with longer, steadier pressures on species (presses) to explain Earth's mass extinctions. The Press/Pulse theory suggests that these combined events are necessary for big extinctions to occur.

SourceGeological Society of America·DateOct 24, 2006

Amazon River reversed flow

Researchers studying ancient zircon crystals and river sediments discovered the Amazon River once flowed east-to-west, reversing its current direction. The finding dates back to around 1.3-2.1 billion years ago, during the Cretaceous Period.

SourceGeological Society of America·DateOct 24, 2006

New fertility guidelines limit embryo transfers

The American Society of Reproductive Medicine recommends limiting embryo transfers during in-vitro fertilization procedures to one, reducing the risk of complications for both mother and fetus. The goal is to decrease higher-order multiple gestations and their associated preterm birth risks.

SourceMarch of Dimes Foundation·DateOct 24, 2006
Sky & Telescope Pocket Sky Atlas, 2nd Edition

Sky & Telescope Pocket Sky Atlas, 2nd Edition is a durable star atlas for planning sessions, identifying targets, and teaching celestial navigation.

VIP's importance to temperature regulation may be pre-empted by substance P

Researchers have found that a neurotransmitter pathway in the skin, involving substance P and its related receptor, may play a key role in temperature regulation. By blocking this pathway, they found reduced blood flow to the skin, suggesting more than one mechanism is involved in regulating body temperature.

SourceUniversity of Oregon·JournalThe Journal of Physiology·DateOct 24, 2006

Researchers use novel three-dimensional imaging technique

A team of UCLA researchers has developed a new three-dimensional imaging technique that tracks the spread of Alzheimer's disease through the hippocampus. The study reveals distinct patterns of atrophy in specific brain regions, shedding light on the progression of the disease.

SourceUniversity of California - Los Angeles·JournalBrain·DateOct 24, 2006

Yale journal identifies products that cause greatest environmental damage

A special issue of Yale's Journal of Industrial Ecology highlights the most impactful products on the environment, with 70-80% of damage attributed to automobiles, air transport, food, and energy use. The research informs environmental improvement programs and policy decisions globally.

SourceYale University·JournalJournal of Industrial Ecology·DateOct 24, 2006

Naturally occurring enzyme can break down key part of Alzheimer's plaques

Researchers at Washington University School of Medicine identified an enzyme that degrades a key component of brain plaques characteristic of Alzheimer's disease. The enzyme, matrix metalloproteinase 9 (MMP-9), breaks down abnormally aggregated proteins known as amyloid fibrils, which are the main ingredient of brain plaques.

SourceWashU Medicine·DateOct 24, 2006
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.

Remote-control MRI exam performed over the Internet

Researchers have developed a remote-control mechanism for controlling an MRI machine via the internet, resulting in superior image quality compared to traditional onsite scanning. This technology enables specialized skills in MRI to be implemented remotely, improving patient care and accessibility.

SourceRadiological Society of North America·JournalRadiology·DateOct 24, 2006

Cougar predation key to ecosystem health

A new study by Oregon State University researchers found that cougar predation has a significant impact on the environment, leading to severe ecological damage and loss of biodiversity in Zion National Park. The 'trophic cascade' effect, where the decline of a major predator leads to changes in herbivore populations and behavior, is ev...

SourceOregon State University·JournalBiological Conservation·DateOct 24, 2006
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.

Women's skin tone influences perception of beauty, health and age

A new study found that even skin tone is associated with higher ratings for attractiveness and health, while uneven skin tone leads to older perceptions. The research used three-dimensional imaging and morphing software to analyze facial skin color distribution in 169 Caucasian women.

SourceManning Selvage & Lee·JournalEvolution and Human Behavior·DateOct 24, 2006

Pulmonary hypertension discriminates by race, gender

African-American women have the highest mortality rate for idiopathic pulmonary arterial hypertension (IPAH), according to a new study. The study found that racial disparities exist in IPAH mortality and morbidity, with African-American women exhibiting the highest mortality rate when compared with all other groups.

SourceAmerican College of Chest Physicians·DateOct 24, 2006

SRI medication effective in treating compulsive hoarding patients

A study of 79 patients diagnosed with obsessive-compulsive disorder (OCD) and compulsive hoarding syndrome found that serotonin reuptake inhibitor (SRI) medication, paroxetine, significantly improved symptoms. Compulsive hoarding is a psychiatric disorder characterized by failure to discard objects due to anxiety and excessive clutter.

SourceUniversity of California - San Diego·JournalJournal of Psychiatric Research·DateOct 24, 2006

Flu vaccine appears safe for young children

A large safety study found that the flu vaccine is not associated with an increased risk of serious conditions in young children. The study analyzed data on over 45,000 children who received the trivalent inactivated influenza vaccine between 1991 and 2003.

SourceJAMA Network·JournalJAMA·DateOct 24, 2006
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.

Racial disparities high in Medicare plans

A new study from Harvard Medical School and Brown Medical School shows that racial disparities in care cannot be attributed to low-performing health plans. The research found that high-performing plans and low-performing plans have comparable levels of disparities in key health measures.

SourceHarvard Medical School·JournalJAMA·DateOct 24, 2006

Always keeping a safe distance

Researchers at MPI-CBG defined the distance between Kinesin-1 and microtubules, explaining how it avoids collisions. This finding sheds light on refined motor proteins' ability to navigate cells efficiently.

SourceMax-Planck-Gesellschaft·JournalProceedings of the National Academy of Sciences·DateOct 24, 2006

Researchers find 'zip code' spurs cargo transport in neurons

Researchers at Brown University have identified a peptide that can spur cargo transport in nerve cells, shedding light on the complex intracellular transport system inside nerve cells. The discovery could help scientists better understand nerve cell function and test possible therapies for neurodegenerative diseases such as Alzheimer's.

SourceBrown University·JournalProceedings of the National Academy of Sciences·DateOct 24, 2006

American research finds twins more likely to have premature menopause

A study of over 800 twin pairs found that premature ovarian failure was three to five times greater in twins at ages 40 and 45 compared to the general population. This finding applies to both identical and non-identical twins, with a significant association observed between twin disparities in menopausal ages.

SourceEuropean Society of Human Reproduction and Embryology·JournalHuman Reproduction·DateOct 24, 2006
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.

Racial disparities universal in Medicare health plans, study finds

A recent study from Brown Medical School and Harvard Medical School found significant racial disparities in Medicare managed care plans, even among high-performing plans. Blacks were more likely to have poor control of cholesterol, blood pressure, and blood sugar levels compared to whites.

SourceBrown University·JournalJAMA·DateOct 24, 2006

Ultraviolet light reveals secrets of nanoscale electronic materials

Researchers have developed a technique to measure precise conditions for electrically polarized ultrathin materials, revealing the ferroelectric state in next-generation memory chips and devices. The study shows that these materials can retain their properties at room temperature with thicknesses as thin as 4 nanometers.

SourcePenn State·JournalScience·DateOct 24, 2006