Bluesky Facebook Reddit Email

Science News Archive 2002


Page 78 of 93

Preliminary evidence suggests possible nuclear emissions during experiments

Researchers observed statistically significant amounts of tritium above background in cavitation experiments, suggesting the possibility of nuclear reactions. The findings are based on a collaboration that used high-energy neutrons to create bubbles in liquid, which can result in light emissions and potentially nuclear reactions.

Surgeons to train on artificial bodies

Researchers at Cardiff University have created a cost-effective, realistic surgical trainer using technology typically used in industry. The trainer will be used to perfect key-hole surgery techniques on artificial bodies before being used on real patients.

Other highlights in the March 6 issue of JNCI

Two new studies published in the Journal of the National Cancer Institute suggest that frequent tomato product consumption may reduce prostate cancer risk. Additionally, researchers found a possible role for the Ras gene in neuroblastoma regression and increased levels of GRP growth factor in head and neck cancers.

Apple iPhone 17 Pro

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

Volume of mammograms read may influence accuracy of diagnosis

A study found that high-volume mammography readers in the US detected fewer cancers than their British counterparts, despite meeting lower annual standards. The research suggests re-engineering US screening programs to improve efficiency and quality without increasing interventions.

Racial and ethnic minorities may receive less appropriate cancer treatment

A recent study found racial and ethnic disparities in the receipt of cancer treatments, with white patients often receiving more aggressive therapy than minority groups. The study analyzed data from 87 studies and found consistent differences in therapy, including less frequent surgery for lung and colorectal cancers among minorities.

American Thoracic Society Journal news tips for March (first issue)

Chronic obstructive pulmonary disease (COPD) is associated with a 3.9% reduction in workforce participation rates, particularly among those with moderate to severe disease. Additionally, sleep-disordered breathing in mildly obese men is linked to glucose intolerance and insulin resistance.

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.

NASA study links El Niño and southern ocean changes

A NASA study reveals strong relationships between El Niño episodes and changes in Antarctic sea ice cover, indicating a connection between the Southern Oscillation and global climate. The findings suggest that El Niño affects regional ice distributions, with notable associations observed in the Amundsen, Bellingshausen, and Weddell Seas.

Exotic properties of 'quantum magnets' attract physicists

Researchers at Stanford University used neutron scattering to study the magnetic properties of insulators with random impurities, discovering a novel model magnet. The introduction of nonmagnetic impurities disrupts long-range magnetic order, leading to unprecedented quantum fluctuations.

Fluke 87V Industrial Digital Multimeter

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

Possible sound-induced nuclear fusion posited

Researchers at Rensselaer Polytechnic Institute used ultrasonic waves to create small cavitation bubbles that could potentially lead to nuclear fusion. The team observed evidence of tritium and sonoluminescence light flashes, which may indicate the fusion of deuterium atoms in the highly compressed bubbles.

Future volcanic eruptions may cause ozone hole over Arctic

A 'volcanic ozone hole' is likely to occur over the Arctic within the next 30 years due to high volcanic activity coinciding with cold winters. This could lead to a significant increase in springtime ozone loss over the Arctic, threatening more populated areas.

Children riding in extended cab pickup trucks are at greater risk of injury

A recent study by Children's Hospital of Philadelphia found that children inside compact extended cab pickup trucks are nearly five times more likely to suffer injuries during a crash. The research highlights the unique hazards posed by these vehicles, including side-facing jump seats and insufficient padding.

Pregnant minority women have high rates of depression

A recent study found that 51% of pregnant minority women experienced depression, with levels similar between African-American and Hispanic groups. The research highlights the need for healthcare providers to identify and address social support issues in these vulnerable populations.

UC Riverside awarded grant for hydrogen engine research

Researchers at UC Riverside have received a $100,000 grant from the Department of Energy to investigate ways to improve the performance of hydrogen engines. The project aims to reduce nitrogen oxide emissions, which are considered a criteria pollutant, and explore alternative methods for measuring low-level emissions.

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.

Ergonomic changes help musculoskeletal problems

A Cornell University study found that workers using proper ergonomic products and trained in their use experience a significant decline in musculoskeletal problems. The study, which involved coordinating ergonomic interventions with training, showed improvements in nearly half of the participants.

The effect of laws mandating bicycle helmet use

The study found a significant increase in bicycle helmet use from 36% to 84%, resulting in a decrease in head injuries among cyclists. However, another commentator suggests that legislation alone may not be sufficient to promote safe cycling and recommends combining it with other strategies such as bike paths.

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.

Fighting the spread of sudden oak death

A new water mold fungus, Sudden Oak Death, is killing oaks in California and poses a threat to Eastern US forests. The fungus can spread through plant transportation or infected mud, and has already killed over 100,000 trees.

New technology may benefit health care, bioterror defense

Researchers at University of Houston develop new direct molecular sensing technology for rapid genetic information sequencing, potentially saving lives in bioterrorism attacks. The technology could also enable personalized medicine by tailoring treatments to an individual's unique genetic makeup.

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.

Fusion in a flash?

Tiny, super-hot bubbles created by acoustic cavitation may be producing nuclear fusion, according to researchers. The experiment produced stable bubbles that could expand to nearly a millimeter before collapsing, and detected higher levels of tritium and neutrons.

Optical tweezers show how DNA uncoils

Using optical tweezers, researchers have observed the dynamic structure of individual nucleosomes for the first time. They found that DNA in these units can be released from histones through a three-stage process, allowing enzymes like RNA polymerase to access genetic information.

Annals of Internal Medicine, tip sheet, March 5, 2002

Acupuncture has been shown to be effective in treating vomiting after chemotherapy or surgery, as well as nausea associated with pregnancy. However, its effectiveness in treating chronic pain, back pain, and headache is still a topic of debate, with conflicting results from clinical trials.

Apple Watch Series 11 (GPS, 46mm)

Apple Watch Series 11 (GPS, 46mm) tracks health metrics and safety alerts during long observing sessions, fieldwork, and remote expeditions.

University of Warwick researchers in nose-on-a-chip-project

Researchers from the University of Warwick, Leicester, and Edinburgh are developing a nanotechnology-based electronic nose that mimics human olfactory sensors. The device aims to improve the sensitivity and processing power of existing electronic noses, allowing for real-time monitoring of environmental pollutants and food safety.

Two viruses team up in West Nile vaccine

Researchers have developed a hybrid vaccine that protects mice from West Nile virus infection by combining weakened dengue and West Nile viruses. The vaccine stimulates strong immune responses and has shown to be effective in mice, paving the way for human trials.

Transplanted stem cells restore function in stroke

Researchers at the University of Minnesota have successfully transplanted stem cells into laboratory animals with stroke, restoring brain function. The study demonstrates that bone marrow-derived stem cells can differentiate into neurons, astrocytes, and oligodendroglia, offering hope for future clinical trials.

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.

Steroid nasal spray more effective against hay fever

A new study has found that fluticasone steroid nasal spray is more effective in reducing symptoms and inflammation of seasonal allergies compared to a combination of antihistamines. The treatment had minimal side effects, with the researchers preferring it due to its effect on inflammation.

New scale measures customer service quality of Web sites

A new five-dimension scale assesses consumers' perceptions of Internet retail service quality, highlighting factors such as performance, information, security, sensation, and access. The scale helps online retailers identify areas for improvement to increase customer satisfaction and drive sales.

Link found between kids’ sleep, behavior problems

A new study reveals a strong link between children's sleep problems and behavioral issues like hyperactivity and inattention. The research, published in the journal Pediatrics, found that children who snore often are nearly twice as likely to have attention and hyperactivity problems.

Evidence of PSA screening efficacy lacking

Evidence suggests PSA screening may not significantly reduce prostate cancer mortality rates. Large-scale randomized controlled trials are necessary to confirm these findings and provide clarity on the effectiveness of PSA screening at a population level.

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.

X-ray camera images fuel injection in action

Researchers at Cornell University have developed a novel X-ray camera capable of capturing microsecond images of events hidden to optical cameras. The camera successfully imaged shock waves generated by high-pressure fuel sprays, providing new insights into the distribution and atomization of diesel fuel.

Anti-malarial assistant

A glycolipid called a-GalCer enhances long-lasting CTL mediated immunity against malaria in mouse models. It interacts with NKT cells to bridge innate and adaptive immunity.

Gene duplication adapts to changing environment

A new study from the University of Michigan reveals how a duplicated gene in leaf-eating monkeys has evolved to improve digestion efficiency. The researchers found that the duplicated gene allows the monkeys to better cope with an acidic environment, suggesting a key adaptation to their unusual diet.

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.

A gateway for Ebola/Marburg viruses

Researchers demonstrate that Ebola and Marburg viruses rely on lipid rafts in the cell membrane to gain entry and assemble. This finding opens up potential therapeutic avenues against these deadly pathogens.

Undergraduate unraveling genetic mysteries in fruit flies

Christy Comeaux, a Johns Hopkins University undergraduate, is studying the genetics of fruit flies to understand human organ development. She has made key discoveries about how genes work in humans and how cells position themselves within organs.

Experimental treatment for hayfever is safe, effective, and fast

A new clinical study by Johns Hopkins researchers shows that an experimental immunotherapy for severe ragweed allergy dramatically reduces allergic symptoms, such as runny noses, sneezing, and itchy eyes. The treatment nearly eliminates the need for relief medications and is substantially safer than conventional allergy shots.

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.

Childhood eating habits may persist into adolescence and lead to obesity

A study of 984 Chinese children found that about half continued their high-fat diet six years later, highlighting the importance of early diet in preventing chronic diseases. Socioeconomic factors such as family income and education level also played a significant role in shaping dietary patterns.

Mutations may yield clues to heartbreaking childhood disease

Pamela Douglas, a Johns Hopkins University senior, is analyzing DNA from children suffering from Rhizomelic Chondrodysplasia Punctata, a devastating disease that causes stunted limbs and mental retardation. Her work may yield clues to the development of a treatment for this rare but fatal disorder.

Study reveals differences in patients' response to Ritalin

A study by Brookhaven National Laboratory found that individual variation in dopamine release affects Ritalin's efficacy in treating attention/hyperactivity disorder. The study suggests that patients with low dopamine cell activity may not respond to the drug, even if it blocks dopamine transporters.

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.

New facility puts Ames lab on thin-film fast track

Researchers David Jiles and John Snyder will focus on mechanisms of clean, multi-element film growth and structuring of films at the atomistic to nano-length scale. Thin-films could replace semiconductor technology for nonvolatile computer RAM, boosting data storage capacity by 10-50 times.

Folic acid possibly a key factor in Alzheimer’s disease prevention

Researchers found that folic acid deficiency led to decreased neurons and increased homocysteine levels, causing DNA damage in the hippocampus. Adequate folate intake helped repair this damage, suggesting a possible cause-effect relationship between folic acid and Alzheimer's disease prevention

Involved fathers key for children

A recent study by Dr Eirini Flouri and Ann Buchanan found that involved fathers are associated with improved academic motivation, reduced psychological distress, and better life outcomes for children. The research, based on 17,000 UK-born children, highlights the importance of father involvement in childhood and adolescence.

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.

Superbug dynasties conquer the globe

A recent study reveals that Staphylococcus aureus, a leading cause of hospital-borne infections, is part of a few massive superbug families. These bacteria have spread globally and can be tracked through unique genetic fingerprints, suggesting new targets for disease-fighting drugs.

Cancer patients’ emotional needs often undetected by oncologists

Researchers at the University of Sydney found that cancer patients' informational and emotional needs are often not detected or addressed by oncologists. Despite this, patients' satisfaction with consultations and anxiety levels remain unaffected, highlighting the importance of doctors actively encouraging emotional disclosure.