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Science News for December 22, 2005


Role of microRNA identified in thyroid cancer

Researchers have identified 23 microRNAs that are significantly altered in the cancerous tissue compared to normal samples, with three miRs dramatically overexpressed and forming a signature that predicts the presence of malignant tissue. The study provides evidence for the regulatory role of microRNA in thyroid cancer development.

SourceOhio State University Wexner Medical Center·JournalProceedings of the National Academy of Sciences·DateDec 22, 2005

Virtual reality could help diagnose heart conditions

Researchers developed a virtual reality system using 3D echocardiography to analyze heart defects. Ten heart specialists successfully diagnosed healthy and unhealthy hearts within minutes, showcasing the technology's potential for better understanding cardiac anatomy.

SourceBMC (BioMed Central)·JournalCardiovascular Ultrasound·DateDec 22, 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.

Evaluation metrics proposed for firefighter thermal imagers

Researchers at NIST have submitted recommendations for standardized performance guidelines for thermal imagers used in six critical emergency situations, including locating victims and pinpointing fire sources. The proposed evaluation methods will improve the selection process for life-saving devices costing $10,000 each.

SourceNational Institute of Standards and Technology (NIST)·DateDec 22, 2005

Birth defect gene identified

Researchers have identified a genetic factor leading to forehead and frontal bone malformations, which can cause severe craniofacial defects. A potential therapy using FGF supplements may help prevent these defects in embryos with missing TGF-beta genes.

SourceUniversity of Southern California·JournalDevelopment·DateDec 22, 2005

Bacterial protein mimics host to cripple defenses

Researchers discovered a bacterial protein that mimics a plant cell's programmed cell death (PCD) mechanism, rendering the pathogen harmless. The study sheds light on immunity and offers potential applications in controlling crop and human diseases.

SourceBoyce Thompson Institute·JournalScience·DateDec 22, 2005

Bigger brain size matters for intellectual ability

A new study by McMaster University found a significant correlation between brain size and intelligence in women. In contrast, men's spatial ability was not strongly related to overall brain size. The study suggests that sex differences may play a role in cognitive processes.

SourceMcMaster University·JournalBrain·DateDec 22, 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.

Scientists solve mystery of the 'unicorn' whale

Researchers discover that the narwhal's tusk, measuring up to 9 feet long, contains up to 10 million nerve pathways, allowing it to detect changes in temperature and pressure. The unique structure of the tusk, with softer outer layers, may serve as a shock absorber to prevent breaks.

SourceNational Institute of Standards and Technology (NIST)·DateDec 22, 2005

New procedure reveals the secrets of the brain

Researchers developed a technique to record brain activity using BOLD signal while applying electrical microstimulation to the primate brain. The study found that activity patterns are larger than expected, reflecting functional spread via horizontal connections.

SourceMax-Planck-Gesellschaft·JournalNeuron·DateDec 22, 2005

HHMI awards international research grants to 28 scientists

The Howard Hughes Medical Institute (HHMI) has awarded $14 million to 28 international researchers in the Baltics and Eastern Europe over a five-year term. The grants will support research in various fields, including neuroscience and infectious diseases, and provide resources for equipment, supplies, and training opportunities.

SourceHoward Hughes Medical Institute·DateDec 22, 2005

Science's Breakthrough of the Year: Watching evolution in action

Studies on evolution at the genetic level revealed new insights into the human species' evolutionary history and potential for personalized medicine. Other research advances included planetary discovery, plant molecular biology, and a deeper understanding of neutron stars and climate change.

SourceAmerican Association for the Advancement of Science (AAAS)·JournalScience·DateDec 22, 2005
Apple iPhone 17 Pro

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

New neurons take baby steps in the adult brain

Researchers at Johns Hopkins Medicine discovered that new neurons in the adult brain are excited by GABA, a chemical previously thought to inhibit signals. The findings may help increase neuron regeneration and improve connections between transplanted stem cells.

SourceJohns Hopkins Medicine·JournalNature·DateDec 22, 2005

A little telomerase isn't enough

Researchers found that mice with half the normal amount of telomerase can't maintain their stem cells' chromosome ends, leading to early demise. The study suggests that inherited disease may be caused by inherited telomere length, not the status of the telomerase gene.

SourceJohns Hopkins Medicine·JournalCell·DateDec 22, 2005

Ultracold test produces long-sought quantum mix

For the first time, researchers at Rice University have succeeded in creating and observing an elusive and long-sought quantum state. The team cooled a mixture of fermionic lithium-6 atoms to extremely low temperatures, allowing them to study superfluidity with precision.

SourceRice University·JournalScience·DateDec 22, 2005
CalDigit TS4 Thunderbolt 4 Dock

CalDigit TS4 Thunderbolt 4 Dock simplifies serious desks with 18 ports for high-speed storage, monitors, and instruments across Mac and PC setups.

Alcohol is a strong trigger of criminal violence

A study by Karolinska Institutet found that alcohol consumption significantly increases the risk of violent behavior, with a 13.2-fold higher risk within 24 hours. Use of certain medications, such as benzodiazepines and antidepressants, was associated with a decreased risk of violence.

SourceKarolinska Institutet·JournalAddiction·DateDec 22, 2005

Researchers know what you were about to say; fMRI used to detect memory storage and retrieval

A study by Sean Polyn and colleagues used fMRI to track brain activity during memory retrieval, finding the 'bootstrapping' effect where recalling a part of a memory triggers associated memories. This technique could help treat brain disorders like Alzheimer's disease and guide creation of more self-sufficient artificial neural networks.

SourceUniversity of Pennsylvania·JournalScience·DateDec 22, 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.

Cedars-Sinai researchers demonstrate a new way to switch therapeutic genes 'on' and 'off'

Cedars-Sinai researchers have developed a new delivery system that can effectively regulate therapeutic gene expression, overcoming obstacles in bringing genetic therapies to humans. The system allows for the flexibility to turn gene expression on or off, even in the presence of an immune response, making it a critical tool for treatin...

SourceCedars-Sinai Medical Center·JournalJournal of Virology·DateDec 22, 2005

Study demonstrates safety of oral contraceptives in women with lupus

A study of 183 women with inactive or stable lupus found that taking oral contraceptives had no statistically significant difference in the occurrence of flares compared to those taking a placebo. Mild-to-moderate flares and disease complications were also similar between the two groups over a 12-month follow-up.

SourceNIH/National Institute of Arthritis and Musculoskeletal and Skin Diseases·JournalNew England Journal of Medicine·DateDec 22, 2005

Air pollution, high-fat diet cause atherosclerosis in laboratory mice

Researchers found that exposure to fine particle air pollution and a high-fat diet together contribute to the development of atherosclerosis in laboratory mice. The study suggests that even low concentrations of air pollution may accelerate the progression of atherosclerosis, particularly among those with risk factors.

SourceNIH/National Institute of Environmental Health Sciences·JournalJAMA·DateDec 22, 2005

Researchers develop new method for studying 'mental time travel'

Researchers developed a new method to study mental time travel by analyzing brain scanning data. They showed participants images and then asked them to recall what they had seen, using computerized pattern-recognition program to track brain activity patterns. The results suggest that memory retrieval is a form of mental time travel.

SourcePrinceton University·JournalScience·DateDec 22, 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.

Max Planck researchers make a breakthrough in plant stem cell research

Scientists from the Max Planck Institute for Developmental Biology have discovered a feedback mechanism involving hormones and regulatory proteins that controls the number of stem cells in plants. The research sheds light on how plants maintain a balance between growth and cell proliferation, preventing stunted or uncontrolled growth.

SourceMax-Planck-Gesellschaft·JournalNature·DateDec 22, 2005

Woolly mammoth genome comes to life

Researchers at McMaster University have successfully sequenced the woolly mammoth genome, providing a new understanding of evolution and allowing for the potential recreation of extinct hybrid animals. The discovery has significant implications for fields such as conservation and genetics.

SourceMcMaster University·JournalScience·DateDec 22, 2005

Effective government/industry collaboration bolsters flu vaccine supply

The Fluarix clinical study demonstrated the vaccine's ability to induce protective antibodies, making it a promising tool in bolstering flu vaccine supply. The successful collaboration between academia, industry, and government agencies enabled the rapid development of the vaccine.

SourceNIH/National Institute of Allergy and Infectious Diseases·JournalHuman Vaccines·DateDec 22, 2005

Why Christmas trees are not extinct

Conifers like Christmas trees survive due to efficient microscopic valves that allow water flow as easily as in flowering trees. The study found resistance to water flow was only 1.2 times greater in conifers, enabling them to dominate forests despite their shorter pipes.

SourceUniversity of Utah·JournalScience·DateDec 22, 2005
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.

2005 science breakthrough: Revising Earth's early history

Researchers at Carnegie Institution found that Earth's mantle separated into chemically distinct layers faster and earlier than previously believed. The layering happened within 30 million years of the solar system's formation, revising the standard model of the geochemical evolution of the Earth.

SourceCarnegie Institution for Science·JournalScience·DateDec 22, 2005

Study finds implantable defibrillators as effective in women as in men

Researchers found that women have a similar risk of overall mortality and sudden cardiac death following a heart attack as men. ICD therapy reduced mortality risk in both genders, with benefits estimated at 43% for women and 34% for men, according to the re-analysis of the MADIT II study.

SourceUniversity of Rochester Medical Center·JournalJournal of Cardiovascular Electrophysiology·DateDec 22, 2005
Apple iPad Pro 11-inch (M4)

Apple iPad Pro 11-inch (M4) runs demanding GIS, imaging, and annotation workflows on the go for surveys, briefings, and lab notebooks.

Scientists discover 'light echoes' of ancient supernovae

Researchers at McMaster University have discovered 'light echoes' of ancient supernovae, providing a unique opportunity to study the original light from these events. This finding sheds new light on our understanding of the universe and its elements.

SourceMcMaster University·JournalNature·DateDec 22, 2005

Male elephants woo females with precise chemistry

Researchers found that male Asian elephants release different enantiomer ratios of frontalin, a pheromone, depending on their age and stage of musth. These ratios elicit varying responses in female elephants and other males, allowing them to distinguish maturity and reproductive phase.

SourceOregon Health & Science University·JournalNature·DateDec 22, 2005

JCI table of contents: December 22, 2005

Researchers found that expressing active MMP-9 in macrophages within atherosclerotic plaques leads to their rupture, causing blood clots and reduced blood flow. Additionally, the inactivation of focal adhesion kinase in cardiomyocytes promotes eccentric cardiac hypertrophy and fibrosis in mice.

SourceJCI Journals·JournalJournal of Clinical Investigation·DateDec 22, 2005

New study shows animal family tree looking bushy in places

A new study suggests that the animal family tree looks fuzzy because early evolution occurred in clusters, making it difficult to reconstruct relationships. Scientists used DNA data to try to generate a clear picture of the tree, but instead found a bush with many branches sprouting close together.

SourceUniversity of Wisconsin-Madison·JournalScience·DateDec 22, 2005
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.

New enhancements upgrade NIST Mass Spectra Library

The NIST Mass Spectra Library has been upgraded with approximately 20,000 new spectra, increasing the total number of compounds to over 163,000. The new library includes gas-phase retention index data for volatile organic compounds and tandem mass spectrometry (MS/MS) spectra.

SourceNational Institute of Standards and Technology (NIST)·DateDec 22, 2005