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Science News Archive 2005


Page 75 of 165

Gene's mutations found to cause life-threatening aortic disease

Researchers have identified gene mutations that cause life-threatening aortic aneurysms and dissections, providing a new molecular pathway for therapy development and early warning signs. The study found four families with variations in the TGFBR2 gene, which alters protein structure and sends incorrect signals.

New UC study shows 'stop and go' traffic increases infant wheezing

A four-year study by University of Cincinnati researchers found that living near 'stop and go' traffic increases infant wheezing rates, with African American infants at highest risk. The study suggests that exposure to diesel exhaust particles from 'stop and go' traffic may play a role in developing allergic conditions.

Apple iPhone 17 Pro

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

Bacteria use host's immune response to their competitive advantage

A new study reveals how bacteria, such as Haemophilus influenzae, stimulate the immune system to eliminate competitors like Streptococcus pneumoniae. The findings also suggest that antibiotics and vaccines targeting one microbe can impact interactions among other species present.

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.

Fathers more involved when paternity is established in the hospital

A new study published in the Journal of Marriage and Family found that hospital-based paternity establishment programs lead to higher rates of father involvement. The research also suggests a positive correlation between early paternal involvement and improved long-term well-being for non-traditional families.

Potential 'weak link' between virus and liver cancer discovered

Scientists have found that the hepatitis B virus primes liver cells to turn cancerous by 'turning off' an enzyme called GSK-3ß, which normally suppresses tumor formation. This discovery has potential relevance for other cancers and could lead to novel therapeutic approaches, including gene therapy and small molecules.

Fluke 87V Industrial Digital Multimeter

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

How bacteria break B cell tolerance

Researchers found that bacterial infections can activate self-reactive B cells with significant affinity, driving them to mature into harmful memory B cells. This activation is facilitated by the cooperation of autoantigens, innate immunity, and T cells.

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.

Plankton can run, but can't hide from basking sharks

Researchers tracked basking sharks using pop-up tags to study their diving behaviour. They found that sharks in shallow waters exhibit reversed behaviour compared to deep water, indicating a response to changes in zooplankton vertical migration.

'Satellites and the city'

Urban areas affect climate, with satellite data showing changes in surface properties like thermal conductivity and vegetation cover. NASA satellites capture these changes, enabling improved simulation of urban effects in climate models.

'Tall' crystals from tiny templates

Ames Laboratory researchers have fabricated PBG crystal microstructures in open air using a modified technique called microtransfer molding. The team's achievement enables the creation of multilayered photonic band gap crystals, a key step towards creating photonic crystals within a single computer chip.

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.

JCI table of contents August 1, 2005

Researchers discover hemoglobin's novel function as a nitrite reductase, generating nitric oxide to regulate vasodilation. Separate studies reveal that M cells are not necessary for oral tolerance induction, while bacterial infections can break B cell tolerance by activating self-reactive B cells.

'Save sight with more light': NASA helps develop new bulb

The Eye Saver provides 40 percent more surface illumination on work and reading surfaces, reducing eyestrain by lowering glare. This innovative light bulb is suitable for people of all ages and particularly useful for those afflicted with age-related macular degeneration.

Size matters: Preventing large mammal extinction

The study identified key factors contributing to large mammal extinction, including biological disadvantages and human impact. Smaller mammals are more vulnerable due to limited distribution sizes and exposure to humans, while larger animals face additional challenges such as long gestation periods and late weaning ages.

Meta Quest 3 512GB

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

Postmenopause and periodontal disease

A study of 106 postmenopausal women found that alveolar bone loss is the strongest predictor of tooth loss in this population. The risk of tooth loss increases by 3 times for each millimeter of alveolar bone loss and 2.5 times for each millimeter of clinical attachment loss.

The sound of a distant rumble

Scientists captured T waves from the Sumatra earthquake using underwater microphones at Diego Garcia, providing a direct look at the entirety of the large underwater event. The study reveals two phases: faster rupture to the south and slower to the north, with implications for tsunami risk and emergency relief.

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.

Researchers figure out how hearts fail

Researchers have discovered that during early stages of heart failure, the heart uses too much fatty acid and not enough carbohydrate; later on, it doesn't use enough fat. This new knowledge can lead to better treatments, but the existing drugs don't remedy the inefficiency.

Hamill Foundation funds innovation program at Rice

The Hamill Innovation Grant program supports high-risk, high-impact research at Rice University, aiming to develop new technologies and treatments for various diseases. Four inaugural awards will fund research in areas such as respiratory viruses, protein titin, glycosaminoglycans, and resveratrol biosynthesis.

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.

Redesigned protein accelerates blood clotting

Researchers at the University of Rochester Medical Center have designed a new version of factor VIII that doubles its ability to bind with factor IX, potentially reducing costs and immune reactions. The redesigned protein accelerates blood clotting, offering a promising alternative for next-generation hemophilia treatment.

New clue to cocaine addicts' quirky behavior

Researchers found that cocaine disrupts normal connections between brain regions, leading to impulsive behaviors. The study used rats with cocaine sensitization, who showed impaired ability to change strategies in a maze.

Injuries higher among obese people, study finds

A recent study found that individuals with obesity and extreme obesity are more likely to experience injuries compared to those with normal weight. Overexertion and falls were the most common causes of non-fatal injuries among obese participants, while underweight individuals reported the fewest injuries.

Report card on America's children 2005

The report found that children are more likely to live in poverty, have low birthweight, or commit a violent crime. However, the adolescent birth rate has reached a record low, and immunization rates have increased. Additionally, child mortality rates have declined, with fewer deaths among young children.

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.

Efforts to improve hospital care

Two studies using standardized measures found that hospitals improved on 15 of 18 clinical performance measures, but didn't show significant reductions in early deaths from heart attacks and injuries during delivery. The findings suggest that higher levels of adherence with evidence-based guidelines are achievable, but may be somewhat ...

Pinpointing a culprit molecule in Alzheimer's disease

Researchers created transgenic mice overproducing Ab40 and Ab42 to study their roles in AD pathology. The results showed that Ab42 mice accumulated extensive amyloid plaque and neural damage, while Ab40 mice showed little disease pathology. The study provides evidence for the critical role of Ab42 in initiating amyloid deposition.

MIT-Williams team catches rare light show

The MIT-Williams team successfully observed the occultation of a star by Charon, Pluto's moon, using multiple telescopes in Chile. The data will help determine Charon's radius and whether it has an atmosphere, with implications for understanding the moon's composition and potential habitability.

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.

Scientists discover stem cell origin of neck and shoulders

Researchers at University College London have discovered that mesenchymal stem cells create both muscles and bones in vertebrates, with blurred boundaries between cell groups. This sheds new light on human diseases like Klippel-Feil syndrome, where these regions are often malformed.

New discovery may help doctors treat infertility

Researchers at NIEHS discovered that the beta estrogen receptor plays a significant role in ovarian function, potentially leading to new treatments for infertility. A simple blood test could diagnose genetic mutations affecting the receptor's function, improving treatment options and chances of having a healthy child.

'Harmless' bacterium found to cause 10 percent of COPD flare-ups

Researchers found M. catarrhalis responsible for 10% of COPD exacerbations, with potential to develop vaccines to prevent infections in patients. The study involved 104 adults with COPD and identified 120 episodes of M. catarrhalis infections associated with flare-ups.

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.

Benign breast disease an important breast cancer risk factor

Researchers found a link between certain benign breast lesions and increased risk of breast cancer, particularly proliferative and atypical types. Women with non-proliferative forms had no increased risk as long as they didn't have a strong family history.

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.

California to fund prison research center at UC Irvine

The California Department of Corrections and Rehabilitation is providing $1.95 million for a new UC Irvine center to evaluate juvenile and adult prison programs, including rehabilitation and reentry options. The Center for Evidence-Based Corrections will inform policy decisions with scientific evidence.

Bone loss after liver transplants can be prevented

Researchers found that alendronate, combined with calcium and vitamin D, significantly prevented further bone loss in liver transplant patients for four months after the procedure. After three years, patients with osteopenia or osteoporosis showed improved BMD despite not reaching normal levels.

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.

Coping with multiple chronic conditions

A study suggests that implementing three key reforms could transform the Medicare program, including creating an out-of-pocket maximum, paying physicians to submit electronic medical records, and improving care coordination among physicians. This could lead to better treatment, reduced duplicate tests, and improved patient outcomes.