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Science News Archive November 2006


Page 10 of 16

Higher level of certain fatty acid associated with lower dementia risk

A recent study found that individuals with higher levels of docosahexaenoic acid (DHA) in their blood had a significantly lower risk of developing dementia and Alzheimer's disease. DHA is an omega-3 polyunsaturated fatty acid found in fish, which appears to affect dementia risk and proper functioning of the central nervous system.

Apple iPhone 17 Pro

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

Mixing exploitation and conservation: A recipe for disaster

A new study examines the ecological impacts of commercial cockle dredging on intertidal ecosystems and finds that exploitation leads to a decline in a seabird species by 80%. The research reveals that even the birds' adaptable digestive system cannot save them from starvation due to degraded food conditions.

ICON issues survey of nanotechnology practices

A comprehensive survey of nanotechnology workplace safety practices found that many companies and laboratories are using conventional EHS practices despite the potential for nanoparticles to pose specific environmental and health risks. The survey, conducted by Rice University's International Council on Nanotechnology, collected data f...

Unraveling where chimp and human brains diverge

UCLA scientists identified gene networks that correspond to specific brain regions in humans and chimps. The study found significant differences in the cerebral cortex region, where human-specific genes show changes at the DNA level. These findings support the theory that variations in DNA sequence contributed to human evolution.

Celestron NexStar 8SE Computerized Telescope

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

Counseling Alzheimer's caregivers postpones the nursing home

A psychosocial support program for Alzheimer's caregivers has been shown to delay nursing home placement by an average of 1.5 years, according to a long-term study published in Neurology. This delay can result in significant cost savings for families, estimated at over $100,000 annually.

Depression, not antidepressants, increases mortality risks in heart failure

A new study by Duke University Medical Center researchers found that depression itself increases mortality risk in heart failure patients, not the use of antidepressant medications. The study analyzed over 1,000 depressed patients with heart failure and found a 15% higher death rate among those who were depressed.

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.

Mapping the mouse genome

Researchers created a detailed genetic map of the mouse genome using two groups of mice, tracking over 10,000 SNPs to identify patterns of inheritance. The study found variations in recombination rates across the genome, between sexes, and identified sequence motifs that may be representative of recombination hot spots.

Diabetes drug may reduce cardiovascular risks

A study at the University of Illinois Chicago found that pioglitazone significantly slowed the thickening of carotid artery walls, reducing the risk of heart attack. The medication was shown to be effective regardless of age, sex, or diabetes duration.

A company's reputation is what gets fried when its books get cooked

A new study by University of Washington professors reveals that companies lose an average of 41% of market value after misconduct is reported. The largest monetary penalties suffered are the result of damage to a firm's reputation, with losses up to $3.08 for each dollar of inflated market value.

Scientists design simple dipstick test for cocaine, other drugs

Researchers at the University of Illinois have developed a simple 'dipstick' test for detecting cocaine and other drugs using DNA-gold nanoparticle technology. The test is highly sensitive and selective, allowing for quick screening of individuals for various substances.

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.

RAND study says renewable energy could play larger role in US energy future

Renewable sources currently provide about 6 percent of all the energy used in the United States. Meeting the 25 percent renewable energy target for electricity and motor fuels together could reduce carbon dioxide emissions from fossil fuel combustion by 15% and displace 2.5 million barrels of oil consumption.

Immune system cells linked to heart failure

Researchers at Baylor College of Medicine found that immune system cells recruited from the body can cause muscle dysfunction leading to certain forms of heart failure. Treatment with serum amyloid P prevented the production of these fibroblasts and resulting fibrosis.

New insight about the source of anxiety in Rett syndrome

A peptide linked to anxiety is found to be overly plentiful in mice with Rett syndrome, suggesting a causal role in the disorder's anxiety-like behavior. This discovery may lead to new treatments for this symptom by targeting the CRH stress response.

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.

New findings may lead to treatment for anxiety in Rett Syndrome

Researchers have discovered that mice with a mutated version of the MECP2 protein exhibit high levels of corticosterone, a stress hormone linked to anxiety and other symptoms of Rett Syndrome. The study suggests that blocking receptors for corticotropin-releasing hormone may reduce anxiety in individuals with RTT.

Lewis and Clark data show narrower, more flood-prone river

A geologist and his collaborator analyzed Lewis and Clark's data, finding the Missouri River has narrowed and its water levels have become more variable. This narrowing creates an increased risk of damaging floods, as well as fluctuations in day-to-day and seasonal water levels.

Higher red meat intake may increase risk for certain breast cancers

A significant association was found between higher red meat consumption and an increased risk of hormone receptor–positive breast cancer in premenopausal women. Women who consumed more than one and one-half servings of red meat per day had almost double the risk compared to those who ate three or fewer servings per week.

Group sets action plan to improve quality in cardiovascular imaging

A panel of national experts has developed a plan to improve the use of imaging technologies in patients with cardiovascular disease. The proposed action plan focuses on four key aspects: selecting the best imaging technique for each individual patient, acquiring high-quality images, correctly interpreting the results, and communicating...

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.

Novel vaccine shows promise against early-stage breast cancer

Researchers developed a potential vaccine targeting HER-2/neu overexpression in early stage breast cancer, yielding promising results for women at high-risk. The study found that nearly all patients exhibited an immune response and many developed protein antibodies to fight the cells.

What does the public really know about HPV?

A study found that only 40% of US women have ever heard of HPV, and fewer still know about its connection to cervical cancer. The public needs education on HPV and cervical cancer to make informed health care choices, researchers concluded.

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.

Fast test for low blood flow in dogs detects early heart trouble

Researchers have developed a fast and accurate test to track slowed blood flow in dogs, detecting early signs of blocked arteries. The 64-slice CT scanner can replace traditional tests like exercise stress testing and echocardiograms, providing a safe and non-invasive method to diagnose coronary disease.

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.

MRI detects early heart damage in patients with sarcoidosis

Researchers used MRI to detect small areas of heart damage in patients with sarcoidosis, finding that it was twice as sensitive as conventional methods. The study suggests that cardiac damage is common and often unrecognized in these patients, which can lead to serious complications.

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.

High-tech spectroscopy may be used to monitor neuropsychiatric symptoms

Researchers have developed a new way to track neuropsychiatric symptoms in lupus using magnetic resonance spectroscopy (MRS), which measures biochemical changes in the body. The study found that MRS can detect changes in metabolites, such as glutamate and glutamine, that correlate with behavioral tests.

Two drugs may stabilize plaques in atherosclerosis

Researchers found that TSA and SAHA decreased cholesterol deposits and prevented macrophages from forming foam cells inside arterial walls. These findings suggest the potential for these anti-inflammatory drugs to stabilize atherosclerotic plaque and reduce acute coronary events.

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.

Pregnant women with lupus face higher risk of complications and death

A nationwide study of over 18 million women found that pregnant women with systemic lupus have a significantly higher risk of death or medical complications compared to those without the disease. The study suggests that these women should be closely monitored by healthcare providers and consider planning their pregnancies carefully.

Hopkins researchers discover how brain protein might control memory

Researchers at Johns Hopkins have discovered that a brain protein called Arc controls how brain cells learn and associate behaviors, leading to improved long-term memory. The study also sheds light on the mechanisms behind certain addictive behaviors, such as drug addiction.

Newly identified biomarker detects and regulates spread of brain tumors

Researchers at Emory University's Winship Cancer Institute have identified a novel biomarker called 'soluble attractin' that is elevated in patients with malignant astrocytomas. This protein plays a key role in the migration and recurrence of brain tumors, making it a promising target for future therapeutic intervention.

Raiding for women in the pre-Hispanic Southwest?

Researchers analyzed human remains from grave sites and found high ratios of female-to-male remains at certain sites, suggesting the practice of raiding women was common. Many female remains showed signs of abuse, providing insight into the impact of warfare on local communities.

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.

Hospital discharge instructions for mild brain injury faulty

A study found that only 14 of 15 hospitals provided inadequate discharge information, with most instruction sheets written at a high reading level. The researchers propose an evidence-based emergency department discharge form to improve patient safety and reduce the risk of brain hemorrhage or swelling.

Neural networking nanotubes

Researchers developed carbon nanotube films that can stimulate nerve cells without damage, enabling potential use in pain management and muscle control. The technology bridges the gap between biology and electronics, offering new possibilities for biomedical devices.

Cloudy day won't rain on laser communications

Researchers use digital signal processing methods to eliminate echoes and scatter, enabling high-speed data transfer through the atmosphere. The approach provides fiber optic quality signals for improved air-to-air and ground-to-air communication links.

Health inequalities are a growing problem worldwide

The study reveals substantial global health inequalities influenced by geography, with countries like sub-Saharan Africa and Afghanistan facing higher child mortality rates. The authors found a four-fold difference in poverty levels and less investment in human resources between these countries and their low-mortality counterparts.

Key to acute lung injury lies in Ang2 protein

Researchers at Yale University found that Ang2 protein levels are higher in patients with acute lung injury and pulmonary edema. The study suggests that modulating Ang2 levels may help control acute lung injury, offering new potential therapeutic targets.

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.

Next flu pandemic: What to do until the vaccine arrives?

Researchers are urging more study on non-pharmaceutical interventions such as social distancing and hand washing during annual flu season. The lack of comprehensive data on community epidemiologic data hinders the design of effective interventions, making it crucial to prepare for potential pandemic flu.

Firefighters face increased risk for certain cancers

Researchers at the University of Cincinnati found that firefighters are twice as likely to develop testicular cancer and have higher rates of non-Hodgkin's lymphoma and prostate cancer. The study analyzed data from 110,000 firefighters and confirmed previous findings on multiple myeloma risk.

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.

One signal elicits thousands of answers

Researchers at the Max Planck Institute developed a technology to identify and quantify specific protein phosphorylation sites in response to stimuli. They discovered 6,600 phosphorylation sites in 2,244 proteins, with 90% being unknown, and created the Phosida database to share their findings.

New biomarkers for lupus found

Researchers at Wake Forest University School of Medicine have identified micro-ribonucleic acids (micro-RNAs) as potential biomarkers for lupus. The study found significant differences in micro-RNA expression between lupus patients and healthy controls, with certain micro-RNAs linked to histone deacetylases and the development of lupus.