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Science News Archive 1999


Page 4 of 54

Bionic nerves to battle wasting muscle

Researchers have developed tiny implants, called BIONs, that can be injected into muscles to stimulate them and prevent wasting. The implants use radio signals to activate electrical stimuli, offering a potential breakthrough in treating stroke patients who are at risk of serious complications such as thrombosis and muscle dislocation.

Does Hale-Bopp have a moon?

Astronomers discovered a potential satellite orbiting Comet Hale-Bopp using Hubble Space Telescope images. Sekanina's model suggests a 33-kilometre-wide moon about 200 kilometres from the comet's nucleus.

'Chaos' theory empowers researchers to predict epileptic seizures

Researchers at the University of Florida have developed a technique to predict certain types of epileptic seizures minutes to hours before they occur. By analyzing brain electrical signals using mathematical formulas from chaos theory, they can identify warning signs of an impending seizure and potentially prevent it with medication or...

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.

El Niño triggers tropical forest reproduction

A study led by U-M scientist Lisa Curran found that El Nino triggers the reproduction of tropical forest trees, allowing them to survive and thrive. However, human activity such as logging is destroying the ecosystem, threatening the local economy and global exports.

NASA Langley Research Center 1999 Fall AGU tip sheet

Researchers discuss seasonal cycles of air exchange, improved models for water vapor, and aerosol levels rising. They also examine the decay rate of aerosols in models versus satellite observations and their impact on Earth's climate.

Molecular traffic signal could be new HIV drug target

A new study has found that a molecular traffic signal, HIV matrix protein, controls two opposing functions regulating the virus' life cycle. This discovery provides new targets for creating molecular gridlock and halting virus growth.

Early planet formation triggers planet offspring

Researchers found that massive planets can trigger the formation of additional planets through violent processes, leading to a different-looking system. The study suggests an upper limit to planetary growth due to unstable conditions, raising questions about the possibility of habitable Earth-like planets in such environments.

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.

MIT researchers 'amplify' atoms

MIT researchers have developed XenoMouse technology, which enables the amplification of atoms for genomics-based antibody drug development. This breakthrough could lead to the creation of fully human monoclonal antibody drugs with high affinity and reduced side effects.

Stress theory helps predict volcanic eruptions

Using brittle failure theory, University of Michigan researcher Youxue Zhang can calculate the likelihood of fragmentation for a given magma sample based on composition, water content, and temperature. This calculation may help predict when a volcanic eruption will become deadly.

Meet the chemical that lets sea creatures thrive

Deep-sea animals have higher concentrations of trimethylamine oxide (TMAO), a compound that helps proteins withstand high pressures and misfolded proteins. TMAO's protective power extends beyond sea creatures to humans, with potential applications in cystic fibrosis treatment.

Study finds no evidence hormone benefits autism

Researchers at the University of North Carolina at Chapel Hill conducted a double-blind study to investigate the effectiveness of synthetic human hormone secretin on children with autism. The study found no difference between groups receiving secretin and placebo, suggesting a potential placebo effect.

Apple iPhone 17 Pro

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

EPA, INEEL, and Utah State University pursue watershed management

The partners aim to enhance the EPA's BASINS program by adding uncertainty and probability assessment capabilities. This will enable decision-makers to prioritize management actions that yield the best results. The collaboration also seeks to improve stakeholder involvement and promote proactive watershed management.

Air pollution from Asia could violate new federal ozone standard

Researchers found an ozone level of 85 parts per billion at 20,000 feet, exceeding the new U.S. EPA standard, and other pollutants like hydrocarbons and carbon monoxide were also detected. The high-pollution plume originated from East Asia and could pose health risks if it reaches ground level.

Zinc reduces pneumonia by 41%, and diarrhea by up to 25%

A pooled analysis of 10 randomized trials found that zinc supplementation significantly reduces pneumonia incidence by 41% and diarrhea by up to 25%. The effect of zinc on pneumonia prevention is greater than other current interventions, making it a promising addition to child health programs worldwide.

Products must be essential to patient care

The American College of Physicians recommends that physicians only sell products from their offices if they are clinically relevant to the patient's condition. The guidelines emphasize transparency and disclose financial interests in products, ensuring patients have access to alternative options and reasonable charges.

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.

Cranfield professor receives top safety award

Professor Helen Muir has received the Whittle Safety Award for her pioneering work on passenger behaviour in emergencies, significantly improving air travel safety. Her research and contributions have been widely recognized globally, with Vice-Chancellor Prof. Frank Hartley praising her achievements.

DFG to set up 21 new collaborative research centres in 2000

The DFG will establish 21 new collaborative research centres in 59 universities, focusing on Cultural Sciences, Biology/Medicine and Natural/Engineering Sciences. The initiative aims to investigate various topics, including social integration, religion, cell regulation and disease mechanisms.

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.

Scientists cause human cancer cell death by inhibiting telomerase

Researchers at UT Southwestern Medical Center designed and tested synthetic inhibitors against telomerase, a key enzyme in cancer cell immortality. These inhibitors successfully caused progressive telomere shortening and cell death in human breast and prostate cancer cells.

Refrigeration In China: energy efficiency with global impact

A five-year program aimed at reducing greenhouse gas emissions from China by 100 million tons, improving energy efficiency in the country's largest refrigerator industry. The project will also reduce air pollutants and help the government of China achieve its goal of using energy more efficiently.

Annals of Internal Medicine, tip sheet for December 7, 1999

A new molecular biology test detected a substance in lymph nodes that may indicate future recurrence of colorectal cancer. The American College of Physicians-American Society of Internal Medicine also cautions physicians about selling products from their offices, emphasizing the need for high ethical standards.

Apple MacBook Pro 14-inch (M4 Pro)

Apple MacBook Pro 14-inch (M4 Pro) powers local ML workloads, large datasets, and multi-display analysis for field and lab teams.

Spinal cord patients can rehabilitate online

A new computer program, developed by Pacific Northwest National Laboratory, provides spinal cord injury patients with access to online rehabilitation training and resources. The Rehabilitation Learning Center offers video instruction, lifestyle guidance, and personalized support for patients working from home.

Researchers learn more about blood vessel receptors

Duke University researchers have defined the distribution of alpha-1 adrenergic receptors in human blood vessels, shedding light on potential new treatments for diseases such as high blood pressure and prostate enlargement. The study's findings suggest that aging processes alter receptor expression, making it crucial to develop targete...

New Cosumnes River research partnership announced

A new research project aims to study the relationship between hydrology, plant, animal, and human communities in the Cosumnes watershed. The project will inform river and floodplain restoration programs throughout the Central Valley.

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.

Genetic extremism overstates risks

A group of Oregon State University scientists emphasize the potential benefits of genetic engineering in forestry, including faster-growing trees that can reduce the burden on native forests. They argue against 'genetic extremism' and call for a more careful analysis of the issues based on science.

Explaining how ozone "chokes up" plants

Researchers identified how ozone 'chokes up' plants by directly affecting guard cells, inhibiting stomatal opening and reducing photosynthesis. This knowledge may lead to breeding or genetically engineering less ozone-sensitive plant varieties to improve productivity in regions with high ozone exposure.

Use of mammograms in older women questionable, say UCSF researchers

A new study by UCSF researchers suggests that screening for breast cancer in elderly women may not be worth the cost, citing a small increase in life expectancy. The study also highlights the potential downsides of mammograms, including false positives and anxiety caused by abnormal results.

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.

Poverty impacts mental development of children exposed to cocaine before birth

Research suggests that poverty has a greater impact on the mental development of children exposed to cocaine before birth, even when controlling for IQ scores and preschool attendance. Children who had been exposed to cocaine performed no worse than low-income children without cocaine exposure in problem-solving tests.

Molecular markers may help to redefine relapse for leukemia patients

A study using polymerase chain reaction detects MRD in long-term CML survivors, finding that approximately 25% of patients had evidence of disease at some time after transplant. The team aims to identify patients who appear cured but may still harbor disease and benefit from early therapeutic intervention.

Fluke 87V Industrial Digital Multimeter

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

Should banks be liable for pollution caused by companies that borrow from them?

A recent survey of UK banks suggests that extending environmental liability to lenders could have a significant impact on their willingness to lend to environmentally risky industries. The study's findings highlight the need for careful design and harmonization of environmental liability regimes with banking regulations to avoid damagi...

Pets may be major cause of water pollution in urban areas

A Vanderbilt University study found high bacterial levels in Nashville runoff from pets and urban wildlife, contradicting the assumption that human waste is the primary source. The research suggests that animal wastes can taint fresh streams and rivers, killing aquatic life.

Americans trust each other less, but still trust institutions

Research at Ohio State University found that Americans' trust in individuals has declined by about 10% between 1975 and 1994, with a decline of half a percent per year. Despite this, trust in institutions such as government, religion, and education remained stable, and people maintained their involvement in clubs and organizations.

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.

90 high schools will participate in UNC-CH head injury study

University of North Carolina researchers will investigate sports head injuries across 90 East Coast high schools, using various assessments to determine athlete readiness for play. The goal is to improve concussion diagnosis and reduce re-injuries, allowing athletes to return safely to competition.

Study: Information on the web is likely correct, but hard to find

A study by Ohio State University scholars found that 27% of Web pages listed correct answers to library reference questions, while 9% contained incorrect answers. The researchers suggest evaluating source credibility and supplementing with other resources for more accurate information.

Eating margarine with Stanol lowers cholesterol by 10 percent

A new study found that consuming three servings of a margarine-like spread containing stanol can lower total and low-density lipoprotein cholesterol levels by up to 10%. The study, which involved over 300 participants with mildly elevated cholesterol levels, showed no adverse effects from using the fortified margarine.

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.

Researchers discover cause of a human immunodeficiency

A team of scientists has discovered that a lack of the B cell linker protein (BLNK) is responsible for an immunodeficiency in mice and a young man with recurring bacterial infections. The study reveals that BLNK plays a crucial role in B lymphocyte development, leading to impaired immune function.

Behind the mask

Researchers at Princeton University developed a new patterning technology called Lithographically Induced Self Assembly (LISA), which creates arrays of ultrasmall pillars without the need for a carefully engineered mask. The technique has potential applications in computer memory chips, flat-panel displays, and DNA sorting.

Waste not

The US Navy is developing a new system to treat non-oily wastewater from its vessels, eliminating costs and fines associated with discharging wastewater. The Aerated Non-Oily Wastewater Membrane Treatment System (AMTS) has shown promise in treating graywater and vacuum-collected sewage, allowing ships to remain on their stations longer.

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.

Liquid crystal film protects against flash blindness

A new liquid crystal film can protect against continuous glare and intense light, improving visibility for drivers and welders. The material reduces light intensity from 140 milliwatts to 5 microwatts, solving glare problems in optical sensors and communications systems.

If you think so it will happen

Researchers are decoding neural activity to translate brain signals into prosthetic limb movements, potentially empowering paralyzed patients to regain control. The technology involves implanting electrodes in the brain and using computer algorithms to interpret neural patterns.

Parathyroid tumors can be removed safely in outpatient procedure

A new study by Johns Hopkins Medicine shows that minimally invasive surgery to remove parathyroid tumors is safe and effective, with a significantly shorter hospital stay and reduced hospital charges compared to traditional open surgery. The procedure also reduces the risk of complications, such as vocal nerve injury.

Celestron NexStar 8SE Computerized Telescope

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