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Science News Archive 2007 - Page 48


Page 48 of 203

Drizzly mornings on Xanadu

Astronomers have found persistent morning drizzle of methane over the western foothills of Titan's major continent, Xanadu. The discovery suggests that moisture-laden clouds pushed upslope by winds condense to form a coastal rain, with the drizzle dissipating after local mid-morning.

SourceESO·JournalScience·DateOct 11, 2007
Apple iPhone 17 Pro

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

RNA-binding protein key to understanding myotonic dystrophy type 1

Researchers at Baylor College of Medicine found that increased levels of CUGBP1 contribute to myotonic dystrophy type 1 by altering splicing patterns in heart and skeletal muscle. The study also reveals the involvement of another RNA-binding protein, MBNL1, in regulating gene expression.

SourceBaylor College of Medicine·JournalMolecular Cell·DateOct 11, 2007

Home sprinklers score 'A' in NIST cost-benefit study

A NIST study found that residential fire sprinklers are a cost-effective solution for new homes, with estimated benefits ranging from $704 to $6,048 over a 30-year period. The analysis also showed significant reductions in civilian fatalities and property damage.

SourceNational Institute of Standards and Technology (NIST)·DateOct 11, 2007

Quick technique to identify adenoviruses can improve patient care

A rapid molecular typing strategy can identify adenovirus types in two days, aiding in the selection of antiviral treatment and controlling outbreaks. The strategy's speed will help public health officials better understand adenovirus epidemiology.

SourceNIH/National Institute of Allergy and Infectious Diseases·JournalClinical Infectious Diseases·DateOct 11, 2007
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.

Morning forecast on Titan calls for widespread methane drizzle off Xanadu

A team of astronomers at UC Berkeley reports a nearly global cloud cover and morning drizzle of methane over Titan's western foothills. The drizzle may be caused by processes similar to those on Earth, with moisture-laden clouds pushed upslope by winds condensing to form a coastal rain.

SourceUniversity of California - Berkeley·JournalScience·DateOct 11, 2007

Green alga genome project catalogs carbon capture machinery

A tiny green alga has uncovered hundreds of genes associated with carbon dioxide capture and generation of biomass. The genome also sheds light on the capabilities of related algae that can produce biodiesel and biocrude as alternatives to fossil fuels.

SourceDOE/Joint Genome Institute·JournalScience·DateOct 11, 2007
Meta Quest 3 512GB

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

Stem cell nuclei are soft 'hard drives,' Penn study finds

Researchers have discovered that human embryonic stem cell nuclei are the most deformable, followed by hematopoietic stem cells, which generate blood and tissue cells. The study reveals that lamin proteins play a key role in stabilizing the nucleus and controlling gene expression.

SourceUniversity of Pennsylvania·JournalProceedings of the National Academy of Sciences·DateOct 11, 2007

MIT links gene to cholesterol

Researchers at MIT discovered a link between gene SIRT1 and cholesterol flushing pathway, which could lead to drugs lowering risk of diseases like atherosclerosis and Alzheimer's. Potential treatments based on polyphenols may be developed to enhance SIRT1 effects.

SourceMassachusetts Institute of Technology·JournalMolecular Cell·DateOct 11, 2007

Story ideas from the Journal of Lipid Research

Researchers have found a link between decreased blood levels of ethanolamine plasmalogen and the severity of Alzheimer's disease, suggesting a potential treatment target. Additionally, apolipoprotein B has been identified as a better predictor of coronary heart disease risk in Chinese populations than traditional markers.

SourceAmerican Society for Biochemistry and Molecular Biology·JournalJournal of Lipid Research·DateOct 11, 2007
Apple AirPods Pro (2nd Generation, USB-C)

Apple AirPods Pro (2nd Generation, USB-C) provide clear calls and strong noise reduction for interviews, conferences, and noisy field environments.

New force-fluorescence device measures motion previously undetectable

Researchers created a hybrid device combining force and fluorescence to detect subtle conformational changes in biomolecules at extremely low applied forces. By probing the dynamics of Holliday junctions, they mapped transition states and deduced the structure of transient species.

SourceUniversity of Illinois at Urbana-Champaign, News Bureau·JournalScience·DateOct 11, 2007

Nanoparticle exposures happen, says expert

Engineered nanomaterials can still penetrate deep inside the body, posing a risk to human health. The science suggests that exposures will occur, and understanding toxicity is crucial for resolving concerns about potential harm.

SourceWoodrow Wilson International Center for Scholars/Science and Technology Innovation Program·DateOct 11, 2007

Millennium development target on maternal mortality unlikely to be met

The Lancet study found that maternal mortality rates in sub-Saharan Africa are not decreasing fast enough to meet the MDG5 target, with a yearly rate of decline required to achieve the target being 5.5%. The authors conclude that a huge emphasis on improved pregnancy and delivery care is needed throughout the developing world.

SourceThe Lancet_DELETED·JournalThe Lancet·DateOct 11, 2007
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.

Genome update defines landscape of breast and colon cancers

Researchers mapped the human genome for breast and colon cancers, finding that most cancer-causing gene mutations are diverse and vary from person to person. The study suggests that personalized medicine may focus on complex pathways linking less-commonly mutated genes.

SourceJohns Hopkins Medicine·JournalScience·DateOct 11, 2007

Penn study suggests professional welders at risk for loss of sense of smell

A University of Pennsylvania School of Medicine study found that professional welders who work in enclosed spaces with poor ventilation may be at risk for losing their sense of smell. The study, which used a standardized test to evaluate olfactory function, found that nearly 90% of welders had impaired smell function.

SourceUniversity of Pennsylvania School of Medicine·JournalNeurology·DateOct 11, 2007

A gene divided reveals the details of natural selection

A team of researchers has demonstrated how a single gene in yeast divides and adapts to improve its environment, showcasing the driving force of natural selection. This study provides the most basic view of how organisms evolve to better adapt to their environments.

SourceUniversity of Wisconsin-Madison·JournalNature·DateOct 10, 2007

Researchers find evidence linking stress caused by the Sept. 11 disaster with low birth weights

A study found a significant increase in low birth weights among NYC babies born after the Sept. 11 disaster, suggesting stress may have contributed. The researchers discovered another peak in low birth weights around Christmas/New Year and April/May, indicating possible long-term effects of stress on fetal health.

SourceEuropean Society of Human Reproduction and Embryology·JournalHuman Reproduction·DateOct 10, 2007
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.

Rapid analysis could cut health risks of volcanic ash

A new, rapid and cheap way of estimating the potential risk posed to human health by volcanic ash has been devised. The technique uses state-of-the-art laser technology to analyze the grain size of samples from around the world, allowing emergency response teams to quickly measure the potential risk without high-tech equipment.

SourceDurham University·JournalJournal of Environmental Monitoring·DateOct 10, 2007

UT researcher earns $1.3M grant to study toxic cleanup at DOD sites

A UT research team aims to develop cost-effective methods for analyzing and cleaning up contaminated sites with dense non-aqueous phase liquids (DNAPLs), which pose a major problem at many DOD facilities. The project could lead to significant cost savings, potentially running into the billions of dollars.

SourceUniversity of Tennessee at Knoxville·DateOct 10, 2007

Cancer conflict with chemotherapy treatment

Research suggests that young women with estrogen receptor-positive (ER+) breast cancer who undergo adjuvant chemotherapy do not experience higher survival rates than those with ER-negative tumors. The study, published in Breast Cancer Research, found a 5% difference in survival rates between the two groups.

SourceBMC (BioMed Central)·JournalBreast Cancer Research·DateOct 10, 2007
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.

Data on life expectancy show many countries clustered in high mortality traps

A study by David E. Bloom and David Canning found that most countries are clustered in high or low mortality groupings with little continuum of change between them. The authors suggest a 'big push' theory to help countries near the threshold break into the low-mortality cluster.

SourceHarvard T.H. Chan School of Public Health·JournalProceedings of the National Academy of Sciences·DateOct 10, 2007

Severe heart defect likely caused by genetic factors

Researchers at Cincinnati Children's Hospital Medical Center found that Hypoplastic Left Heart Syndrome (HLHS) has high heritability and is likely caused almost entirely by genetic effects. Families with a child with HLHS carry a significant recurrence risk of HLHS or related heart defects.

SourceCincinnati Children's Hospital Medical Center·JournalJournal of the American College of Cardiology·DateOct 10, 2007

Folic acid lowers blood arsenic levels in Bangladesh

A new study found that folic acid supplements can dramatically lower blood arsenic levels in individuals chronically exposed to arsenic-contaminated drinking water. The study, funded by the National Institute of Environmental Health Sciences, showed a 14% reduction in total blood arsenic levels in Bangladesh.

SourceNIH/National Institute of Environmental Health Sciences·JournalAmerican Journal of Clinical Nutrition·DateOct 10, 2007
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.

Neighborly care keeps stem cells young

The study found that aging stem cells in fruit flies experienced a decline in growth factor unpaired (upd), leading to reduced stem cell numbers. Artificially increasing upd levels delayed the loss of germline stem cells, suggesting that the niche's molecular signals govern stem cell behavior.

SourceSalk Institute·JournalCell Stem Cell·DateOct 10, 2007

The difference between fish and humans: scientists answer century-old developmental question

Researchers have discovered a key difference in the way gastrulation occurs between higher vertebrate species and less evolutionarily advanced animals. The study reveals that higher vertebrates acquire a new mechanism of 'cell intercalation' to position their axis at the midline, distinguishing them from fish and other lower vertebrates.

SourceBiotechnology and Biological Sciences Research Council·JournalNature·DateOct 10, 2007

Expensive trainers are a waste of money

A recent study found that cheap and moderately priced running shoes provide similar cushioning impact and comfort as expensive trainers. Plantar pressure measurements showed no significant differences among the shoes, regardless of brand or price.

SourceBMJ Group·JournalBritish Journal of Sports Medicine·DateOct 10, 2007

Environmental setting of human migrations in the circum-Pacific Region

Human migration out of Africa and into Asia occurred in at least four pulses, driven by climate and sea level changes. The initial migration was thwarted, but subsequent pulses took advantage of stable climates and sea levels to expand into eastern Asia, Australia, and Melanesia.

SourceBlackwell Publishing Ltd.·JournalJournal of Biogeography·DateOct 10, 2007

Researchers reveal repressor protein blocks neural stem cell development

A study by UC San Diego and HHMI researchers reveals that SMRT protein prevents premature neural differentiation in embryos, highlighting its role in maintaining neural stem cells. The absence of this protein leads to abnormalities similar to vitamin A exposure, suggesting a link between SMRT and retinoic acid-induced differentiation.

SourceUniversity of California - San Diego·JournalNature·DateOct 10, 2007
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.

Electroacupuncture at PC6 may decrease frequency of transient lower esophageal sphincter relaxation

A study published in the World Journal of Gastroenterology found that electroacupuncture at PC6 can decrease the frequency of transient lower esophageal sphincter relaxation (TLESR) induced by gastric distention in cats. The effect appears to act at the brain stem, mediated through nitric oxide (NO), CCK-A, and mu-opioid receptors.

SourceWorld Journal of Gastroenterology·JournalWorld Journal of Gastroenterology·DateOct 10, 2007

Scientists identify brain circuits used in sensation of touch

Researchers identified key brain regions involved in fine tactile spatial discrimination, including the right posteromedial parietal cortex and right posterior intraparietal sulcus. The study's findings may lead to the development of sensory-substitution devices for visually impaired individuals.

SourceEmory Health Sciences·DateOct 10, 2007
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.

Potent peptides inhibit HIV entry into cells

Researchers at the University of Utah have developed new peptides that inhibit HIV entry into cells, with up to a 40,000-fold improved antiviral potency over previously reported D-peptides. These peptides resist degradation, making them suitable for oral administration and potentially reducing drug resistance.

SourceDOE/Brookhaven National Laboratory·JournalProceedings of the National Academy of Sciences·DateOct 10, 2007

The 'arms' race: Adult steroid users seek muscles, not medals

The study reveals that adult steroid users are driven and ambitious individuals motivated by physical self-improvement, including muscle gain, strength, and attractiveness. These non-medical AAS users follow a health-centered lifestyle, using directed drug technology as part of their strategy.

SourceBMC (BioMed Central)·JournalJournal of the International Society of Sports Nutrition·DateOct 10, 2007

Mouse mammary tumor virus can replicate in human cells

Scientists discover that mouse mammary tumor virus (MMTV) can replicate in cultured human breast cells, leading to rapid spread and potential role in human breast cancer. Researchers plan further investigation into the link between MMTV and breast cancer.

SourceBMC (BioMed Central)·JournalRetrovirology·DateOct 10, 2007

Swedish lifestyle stops women working

Research published in BMC Public Health found that traditional family circumstances and workplace inequality contribute to long-term sick leave among Swedish women. Women reported high physical and mental demands at work, lack of flexibility, and bullying as factors affecting their health.

SourceBMC (BioMed Central)·JournalBMC Public Health·DateOct 10, 2007
Fluke 87V Industrial Digital Multimeter

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

Obesity boosts gullet cancer risk 6-fold

Research found that obese individuals are six times more likely to develop esophageal cancer compared to those of healthy weight. A combination of obesity, acid reflux, and smoking significantly increased the risk of adenocarcinomas of the esophagus.

SourceBMJ Group·JournalGut·DateOct 10, 2007

Adult stem cells lack key pluripotency regulator

Researchers have found that adult stem cells do not rely on the protein Oct4 to remain undifferentiated. Studies using sensitive assays failed to detect Oct4 in these cells, revealing a different regulation of pluripotency in adult versus embryonic stem cells.

SourceWhitehead Institute for Biomedical Research·JournalCell Stem Cell·DateOct 10, 2007

Microgrid allows simultaneous study of multiple variables

Scientists at Brookhaven National Laboratory develop a method to correlate microscopic imaging techniques, leading to better understanding and diagnosis of diseases. The technology enables the study of organic and inorganic components simultaneously, improving disease treatment.

SourceDOE/Brookhaven National Laboratory·DateOct 10, 2007

Marines land at UO, leave with plans to wear Oregon-made training suits

The US Marine Corps has selected Oregon-made training suits for its runners, with the University of Oregon's environmental chamber playing a crucial role in the testing process. The new suits, developed by InSport Inc., were found to be superior to an alternative design in terms of comfort and moisture management.

SourceUniversity of Oregon·DateOct 10, 2007

Can liver cirrhosis be partially cured?

Researchers found that prolonged antiviral therapy can improve residual liver function and reduce portal hypertension in patients with compensated hepatitis C virus-related cirrhosis. The study, published in the World Journal of Gastroenterology, suggests that this treatment approach may delay complications and prolong survival rates.

SourceWorld Journal of Gastroenterology·JournalWorld Journal of Gastroenterology·DateOct 10, 2007
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.

NAS report offers new tools to assess health risks from chemicals

The National Academies of Sciences report introduces new tools to assess health risks from chemicals, enabling better predictive toxicology and risk assessment. These technologies provide critical information on environmental agent interactions with human genes, helping identify individuals at higher disease risk.

SourceNIH/National Institute of Environmental Health Sciences·DateOct 10, 2007
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.

Tooth loss, dementia may be linked, JADA study suggests

A study published in JADA found that tooth loss is linked to an increased risk of developing dementia. Researchers proposed several possible reasons for the association, including periodontal disease and early-life nutritional deficiencies.

SourceAmerican Dental Association·JournalThe Journal of the American Dental Association·DateOct 10, 2007

Harvard scientists predict the future of the past tense

Researchers develop formula to study linguistic evolution, predicting irregular verbs will regularize at a rate inversely proportional to their usage frequency. The most common irregular verbs, such as 'be' and 'think', are expected to remain irregular for thousands of years.

SourceHarvard University·JournalNature·DateOct 10, 2007

HER-2 status predicts success of chemotherapy in breast cancer treatment, study finds

A recent study found that women with HER-2 positive breast cancer who receive Taxol alongside chemotherapy experience improved survival rates. In contrast, estrogen-receptor-positive and HER-2-negative patients do not benefit from the added treatment, offering a targeted approach to personalized medicine.

SourceMichigan Medicine - University of Michigan·JournalNew England Journal of Medicine·DateOct 10, 2007
Celestron NexStar 8SE Computerized Telescope

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

Why it is impossible for some to 'just say no'

A recent study by Michael Inzlicht and Jennifer N. Gutsell found that people who suppress their emotions experience a depletion of resources for self-control, leading to poor performance on tasks requiring self-regulation. This depletion can last even after the initial emotional suppression has ceased.

SourceAssociation for Psychological Science·JournalPsychological Science·DateOct 10, 2007