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Science News Archive June 2004


Page 5 of 12

Researcher issues caution on live virus vaccines

Researchers warn that live flavivirus vaccines can recombine, resulting in new microbes with undesirable properties. The use of these vaccines requires international approval due to safety concerns, including increased virulence, disease development in compromised individuals, and birth defects.

New thermodynamic theory will help engineers 'go with the flow'

A new thermodynamic theory, Constructal Law, enables designers to balance flow resistances in complex systems, leading to more efficient designs. The law provides a mental vision of design evolution and helps engineers make informed decisions about resources and money.

Researchers show 'clot-busting' at stroke site is viable option

A recent study published in Neurosurgery found that administering clot-dissolving medication directly to the site of blockages resulted in a 50% success rate in reducing neurological disability, compared to 39% with IV treatment. The intra-arterial therapy showed better results in re-opening blood vessels and improving stroke outcomes.

Apple iPhone 17 Pro

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

Protein stops blood-vessel growth, holds promise as cancer therapy

Researchers have identified a protein, fibulin-5, that inhibits the sprouting of new blood vessels, which is crucial for cancer tumor growth. The findings suggest that fibulin-5 may be an effective cancer therapy and could also serve as a diagnostic tool to detect cancer status.

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.

Tumour suppression

The study reveals that mice lacking the Mus81 protein are fertile and can help monitor health more closely. Researchers explore whether the mutation is tied to human tumour formation, allowing for targeted treatment strategies.

Natural, man-made mix promises biggest landscape plant growth

A recent study found that adding natural mycorrhizal fungi to synthetic fertilizers can significantly improve plant growth while reducing pesticide use and water consumption. Researchers at Texas A&M AgriLife Communications discovered this inexpensive additive makes better use of fertilizers, saving money and improving the environment.

Printable silicon for ultrahigh performance flexible electronic systems

Researchers at University of Illinois have developed a technique to print single-crystal silicon objects onto flexible plastics, enabling high-performance thin-film transistors. This approach separates silicon processing from component fabrication, allowing for integration with various materials and large-area formats.

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.

Who is responsible for adolescent health?

The editorial emphasizes the importance of adolescent participation in identifying problems and devising strategies for improving health. Key findings include slow progress in specialist health services for adolescents, but also highlight the need for non-judgmental information, education, and accessible services tailored to their needs.

Gold-tipped nanocrystals developed by Hebrew University

Researchers at Hebrew University create gold-tipped nanocrystals that offer a solution to problems of building nanoscale transistors and electronic circuits. These nanodumbbells provide strong chemical bonds between the gold and semiconductor, leading to good electrical connectivity.

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.

Rock 'face' mystery baffles experts

Archaeologists have found three unusual markings carved into rocks near Rothbury, Northumberland, including a small heart shape and a stylised human face. The origin and meaning of these marks remain unknown, with experts speculating they could be as young as 100-250 years old.

Scientists learn how adjuvant makes vaccines effective

Researchers found that alum triggers the accumulation of Gr1 cells in the spleen, which prime B cells and facilitate their response to vaccines. The discovery sheds light on how adjuvants like alum enhance vaccine effectiveness.

New tests for nut allergens

Researchers have developed new tests that can detect trace amounts of common tree nut allergens, such as almonds, cashews, and walnuts. These tests could lead to more accurate food labeling and reduced risk of cross-contamination in processed foods.

American Thoracic Society Journal news tips for June 2004 (second issue)

A six-year study found that early therapy for moderate to severe COPD exacerbations hastens recovery time, reduces hospitalization rates, and boosts health-related quality of life. British researchers' prospective study demonstrated the importance of timely treatment on COPD exacerbation outcomes.

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.

Asthma drugs pose respiratory, cardiac dangers

A meta-analysis of 33 trials found that continuous use of asthma drugs increases airway inflammation and decreases bronchodilator response, while also posing cardiac risks for patients with chronic obstructive lung disease. The studies suggested that pharmaceutical company sponsorship may be a factor in the conflicting results.

A celestial surprise: Comet Wild 2 unlike any other body in solar system

Scientists discover a comet with broad mesas, craters, pinnacles, and canyons on its surface, contrary to expectations of a dark dust-covered comet. The surface's unique features suggest that most impacts were absorbed or vented into space, making it possible to clearly see the crater formations.

CO2 fertilization is slowing global warming

A study suggests that CO2 fertilization may be transferring enough carbon from the atmosphere to the soil to balance the global carbon budget. Kevin Harrison's research found a CO2 fertilization factor of 1.18 for a white oak ecosystem, which could have significant implications for understanding the impact of climate change.

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.

Study highlights burden of environment on child health in Europe

A new study highlights the significant burden of environment on child health in Europe, with outdoor and indoor air pollution, inadequate water and sanitation, lead exposure, and injuries causing substantial deaths and disabilities. The findings emphasize the need for interventions to reduce children's exposure to unsafe environments a...

UK researchers develop way of predicting a woman's 'reproductive' age

A new method developed by UK researchers allows for accurate prediction of a woman's remaining reproductive life-span based on ovarian volume measurements. The technique uses mathematical models and computer analysis to estimate follicle numbers, providing a direct assessment of ovarian reserve.

Mammoths stranded on Bering Sea island delayed extinction

New radiocarbon dates show that mammoths became stranded on St. Paul Island about 13,000 years ago due to rising sea levels. The island's small size limited the ability of mammoths to sustain a permanent population, contributing to their eventual extinction.

Meta Quest 3 512GB

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

New obesity research highlighted at ENDO 2004

Recent studies have highlighted promising new treatments for obesity, including rimonabant's effectiveness in treating the condition. Additionally, researchers have discovered a lack of gut hormone PYY3-6 in obese individuals, leading to increased food intake and potential health risks associated with obesity.

Polycystic ovary syndrome treated with new approach in Stanford study

Researchers have discovered a promising treatment for polycystic ovary syndrome (PCOS) using rosiglitazone, an insulin sensitizer that reduces excess androgen levels and improves menstrual cycles. The study showed significant benefits in insulin resistance and ovarian function, offering new hope for women with PCOS.

How many squares, Mr. Franklin?

Maya Ahmed developed methods to construct Franklin's squares and others of the same type, with applications in computer programming. She discovered a way to reconstruct Franklin's three original squares and created new ones that obey the same rules.

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.

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.

No medical benefit from liposuction

Removing abdominal fat by liposuction did not improve insulin sensitivity or reduce risk factors for heart disease. However, the procedure was found to be safe for large-volume fat removal.

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.

Largest USDA study of food antioxidants reveals best sources

A new USDA study has identified the top sources of antioxidants in food, with fruits like cranberries and blueberries leading the way. The study found that lesser-known foods like Russet potatoes, pecans, and cinnamon also contain high levels of antioxidants.

'VALUE' study results

The VALUE trial found no difference in cardiac disease between valsartan and amlodipine, but patients on valsartan had lower rates of hospitalization for heart failure and type 2 diabetes. Early blood pressure control was associated with improved cardiovascular outcomes.

Abnormal chromosomes forecast leukemia relapse

Researchers found that AML patients with abnormal chromosomes during remission are more likely to relapse and have a shorter survival. This suggests that routine testing for chromosomal abnormalities may be necessary to predict long-term outcomes in these patients.

Fluke 87V Industrial Digital Multimeter

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

Earth has 'blueberries' like Mars

Researchers suggest Martian and Utah rocks formed underground when minerals precipitated from flowing groundwater, providing clues to the origin of 'blueberries' discovered on Mars. The study also sheds light on the search for evidence of past life on Mars.

Ultrasound for cancer treatment

Researchers at UC Davis are developing a new cancer treatment that uses ultrasound to steer tiny capsules carrying cancer-fighting drugs to tumors. This approach aims to reduce the toxic side effects of current cancer treatments by concentrating the drug directly in the tumor.

A gene that keeps species apart

Biologists discover a candidate hybrid compatibility gene that exhibits functional divergence, confirming its status as a true speciation gene. The findings provide new insights into the molecular mechanisms of reproductive isolation, which is crucial for defining species.

Home visiting program falls short of goal to prevent child maltreatment

A study published in Child Abuse & Neglect found that home visiting programs failed to identify risk factors and connect families with necessary resources, despite showing some positive outcomes. The researchers recommend better training for home visitors and improved coordination with community organizations.

DJI Air 3 (RC-N2)

DJI Air 3 (RC-N2) captures 4K mapping passes and environmental surveys with dual cameras, long flight time, and omnidirectional obstacle sensing.

Olfactory system matures in different stages

The study established four principles of olfactory system development: without sensory activity there is no full maturation, a sensitive period influences organization maturation, sensitive periods occur at different times for different receptors, and glomeruli may be innervated by multiple nerves during early development.

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.

Other highlights in the June 16 JNCI

A new study by Cancer Research UK found that common mutations in genes regulating estrogen metabolism are not associated with breast cancer risk. However, a separate study suggests that inhibition of hypoxia-inducible factor 1alpha (HIF-1alpha) activity may be a target for future gastric cancer treatments.

Cheaper wastewater-fueled device produces more electricity

The Penn State team has developed a cheaper microbial fuel cell that produces more electricity from wastewater, with the potential to power small devices. The new design uses carbon paper instead of a proton exchange membrane, reducing costs and increasing efficiency.