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Science News Archive February 2002 - Page 7


Page 7 of 8

Duke researchers identify the mechanisms by which drug combinations kill fungal infections

Researchers at Duke University Medical Center have traced cellular pathways that enhance the action of antifungal drugs used to treat fungal infections in people with compromised immune systems. Combining fluconazole with cyclosporin or FK506 was found to potently kill fungal cells, and the team elucidated the molecular targets involved.

SourceDuke University Medical Center·JournalThe EMBO Journal·DateFeb 6, 2002

Genomic tools reveal new microbial phototrophs in the ocean

Researchers found diverse bacterial photosynthetic genes in ocean plankton, actively harnessing energy from light, revealing new types of phototrophs. This discovery has significant implications for oceanic food web models and global carbon budget management.

SourceMonterey Bay Aquarium Research Institute·JournalNature·DateFeb 6, 2002
Apple iPhone 17 Pro

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

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.

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

A new study found that caregivers with higher perceived stress levels had infants who experienced more wheezing episodes during the first 14 months of life. Additionally, exposure to German cockroach allergen was associated with increased risk of asthma attacks in susceptible children. Researchers also developed a molecular model of th...

SourceAmerican Thoracic Society·JournalAmerican Journal of Respiratory and Critical Care Medicine·DateFeb 6, 2002

Potential allergy vaccine boosts hope for sufferers

Researchers at the University of Melbourne have developed a potential allergy vaccine using a modified rye grass protein that reduces allergenic response while boosting immune system. The vaccine, delivered in its pure form, may significantly reduce risk of anaphylactic shock and increase immunotherapy efficacy.

SourceUniversity of Melbourne·JournalEuropean Journal of Immunology·DateFeb 6, 2002

Satellites tracking climate changes

Researchers mapped areas of Africa at risk for RVF outbreaks, identifying conditions necessary for breeding mosquitoes that transmit the virus. Satellite data also suggested a link between dry to wet changes in tropical regions and Ebola outbreaks.

SourceNASA/Goddard Space Flight Center·DateFeb 5, 2002

Spiral waves break hearts: Importance of communication between cardiac cells is demonstrated

Researchers investigate how electrical impulses travel through cardiac tissue and how impaired cell communication affects heart health. They develop a computer model that shows how electrical activity spreads like a fire in a forest, and find that spiral waves breaking up into multiple spirals may be similar to the patterns that cause ...

SourceAmerican Institute of Physics·JournalPhysical Review Letters·DateFeb 5, 2002
Sky-Watcher EQ6-R Pro Equatorial Mount

Sky-Watcher EQ6-R Pro Equatorial Mount provides precise tracking capacity for deep-sky imaging rigs during long astrophotography sessions.

Cancer-causing drug safe and effective in treating eye disease

Researchers found that high-dose, short-term chlorambucil treatment resulted in sustained inflammation reduction for 77% of patients with severe, non-infectious uveitis. The study's findings suggest that chlorambucil may become a preferred treatment option for these patients.

SourceUniversity of Illinois Chicago·JournalOphthalmology·DateFeb 5, 2002

Misclassification of death may influence perceived value of cancer screening

A study found that two forms of bias in cause-of-death classification affect the results of randomized trials on cancer screening. Sticky-diagnosis bias biases against screening, while slippery-linkage bias biases in favor of screening. The authors suggest using all-cause mortality to accurately assess the value of screening.

SourceJournal of the National Cancer Institute·JournalJNCI Journal of the National Cancer Institute·DateFeb 5, 2002

Other highlights in the Feb. 6 issue of JNCI

Researchers found that response rates, survival rates, and quality-of-life outcomes are similar between elderly patients (ages 70+) and younger patients with non-small-cell lung cancer. Additionally, studies report an increased risk of lung cancer after Hodgkin's disease treatment, especially in smokers, and analyzed cost-effectiveness...

SourceJournal of the National Cancer Institute·JournalJNCI Journal of the National Cancer Institute·DateFeb 5, 2002

Dartmouth research examines the value of cancer screening

A Dartmouth study found biases in cancer screening trials that may have overestimated its benefits, suggesting a need for alternative mortality analysis methods. The research recommends using all-cause mortality alongside disease-specific mortality to ensure accurate assessment of screening's value.

SourceThe Geisel School of Medicine at Dartmouth·JournalJNCI Journal of the National Cancer Institute·DateFeb 5, 2002
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.

Discovery of bacterial 'touch sensor' could lead to biofilm treatments

Biologists at Princeton University discovered a protein that initiates biofilm formation in E. coli bacteria, using a 'touch sensor' mechanism to sense solid surfaces. This finding suggests disrupting this sensing mechanism could be an effective strategy for developing new antibacterial agents targeting biofilms.

SourcePrinceton University·JournalProceedings of the National Academy of Sciences·DateFeb 5, 2002

Former astronaut Aldrin, Purdue engineers planning Mars hotels

Researchers plan to use cycler spacecraft, which would constantly ferry people and materials between Earth and Mars, to enable human exploration and colonization of the Red Planet. The cyclers would rotate slowly to create artificial gravity and provide comfortable accommodations for passengers on long trips.

SourcePurdue University·DateFeb 5, 2002

Hormone therapy may boost quality of life, say Stanford researchers

A Stanford study shows that hormone therapy can improve mental health and reduce depression in women experiencing hot flashes, but may have negative effects on those without symptoms. The research suggests that women should discuss their individual risks and benefits with their doctor before making a decision.

SourceStanford Medicine·JournalJAMA·DateFeb 5, 2002

Tanning lamps may increase risks of skin cancers

A statewide study found that people who used tanning lamps were 2.5 times more likely to develop squamous cell carcinoma and 1.5 times more likely to develop basal cell carcinoma than non-users. The risk of these skin cancers increased with younger age at use.

SourceThe Geisel School of Medicine at Dartmouth·JournalJNCI Journal of the National Cancer Institute·DateFeb 5, 2002
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.

Tanning devices may contribute to incidence of common skin cancers

A new study found that individuals who used tanning devices were 2.5 times more likely to develop squamous cell carcinoma and 1.5 times more likely to develop basal cell carcinoma compared to those who did not use them. The risk of these cancers increased with the age at which participants started using tanning devices.

SourceJournal of the National Cancer Institute·JournalJNCI Journal of the National Cancer Institute·DateFeb 5, 2002

Brief exercise improves mental performance in people with chronic lung disease

A new study found that a single session of moderately intense exercise improves cognitive function in people with chronic obstructive pulmonary disease (COPD), particularly in verbal fluency. The effects are cumulative, suggesting that regular physical activity is necessary to maintain mental benefits.

SourceOhio State University·JournalAmerican Journal of Respiratory and Critical Care Medicine·DateFeb 5, 2002

Elderly lung cancer patients tolerate aggressive chemotherapy as well as younger patients

A retrospective analysis of 574 patients with non-small cell lung cancer found that older patients tolerated chemotherapy regimens comparable to younger patients. However, psychological distress and neutropenia were more prevalent in the elderly population. The study suggests that functional status is a key factor in determining treatm...

SourceFox Chase Cancer Center·JournalJNCI Journal of the National Cancer Institute·DateFeb 5, 2002

Satellites vs. mosquitoes: Tracking West Nile Virus in the U.S.

A NASA-funded study utilizes satellite data on temperature and vegetation to forecast West Nile Virus transmission and identify high-risk areas. The analysis reveals that mosquito populations thrive in warmer, wetter conditions, allowing researchers to pinpoint disease hotspots and make predictions about future outbreaks.

SourceNASA/Goddard Space Flight Center·DateFeb 5, 2002

A greener, cleaner groundwater cleanup process

A new bioremediation process, Bioavailability Enhancement Technology (B.E.T.), has been successfully tested at the Idaho National Laboratory's Test Area North. The technology accelerates the degradation of trichloroethene (TCE) in groundwater plumes, making it a cost-effective solution for cleaning up contaminated aquifers.

SourceDOE/Idaho National Laboratory·DateFeb 5, 2002
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.

NASA challenges teachers and students to comet contest

The Cornell and Contour Comet Challenge encourages students and teachers to create educational programs about the spacecraft's goal to study comets. The challenge includes two winning teams that will receive a trip to Kennedy Space Center and educational materials.

SourceCornell University·DateFeb 5, 2002

A few drinks a day do no harm to the alcoholic heart

Researchers at Jefferson Medical College and University of Barcelona found that moderate drinking from one to four drinks a day improved heart function in men with alcohol-related heart failure. The study suggests a threshold drinking level for alcohol-related heart damage, below which there is no harm.

SourceThomas Jefferson University·JournalAnnals of Internal Medicine·DateFeb 5, 2002

Honing the tools to identify clues to surviving cancer

A five-year project aims to create a tool that allows researchers to compare DNA, proteins, and biological factors between cancerous and non-cancerous tissues. This database will be built on unidentifiable data from 1.6 million pathology reports and six million tissue blocks from various Indianapolis hospitals.

SourceIndiana University·DateFeb 5, 2002

HIV/AIDS impact on education intensifies economic downfall

The HIV/AIDS epidemic in Mozambique is taking a toll on education, leading to reduced school enrollments, graduation rates, and quality of education. The report predicts that the country's economy will be smaller than expected by 2010 due to reduced productivity growth, population growth, human capital accumulation, and physical capita...

SourcePurdue University·DateFeb 5, 2002
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.

Researchers identify a key 'brake' of the immune response

Scientists have identified ILT3 and ILT4, a key pair of molecules that function as a brake for the immune response. Increasing their activity on dendritic cells may create tolerance to foreign tissues, while decreasing it can enhance the immune response against malignant cells.

SourceColumbia University Irving Medical Center·JournalNature Immunology·DateFeb 4, 2002

Safety of home births

A Canadian study finds that home births attended by midwives have comparable perinatal outcomes to hospital births, including lower rates of maternal infection and neonatal complications. However, the authors recommend ongoing monitoring for rare adverse outcomes such as hemorrhage and ventilator support.

SourceCanadian Medical Association Journal·JournalCanadian Medical Association Journal·DateFeb 4, 2002

Intensive training may not be as bad for young women as previously thought

Recent studies found no link between intense training and stunted growth or maturation in young female athletes. Instead, body size seems to be appropriate for the sport, with parents of gymnasts being shorter than average. Further research is needed to understand the effects of training on growth.

SourceBMJ Specialty Journals·JournalBritish Journal of Sports Medicine·DateFeb 4, 2002
Meta Quest 3 512GB

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

Annals of Internal Medicine tip sheet Feb. 5, 2002

A large study of men's health habits found that a prudent diet significantly reduces the risk of developing type 2 diabetes. The study indicates that avoiding weight gain and eating a balanced diet may substantially reduce this risk, highlighting the importance of a healthy lifestyle in preventing the disease.

SourceAmerican College of Physicians·JournalAnnals of Internal Medicine·DateFeb 4, 2002

Researchers identify gene in rare form of epilepsy

Researchers have identified a gene called LGI1 associated with a rare type of epilepsy characterized by auditory hallucinations and other symptoms. The discovery provides new insights into the cause of common epilepsy.

SourceColumbia University Irving Medical Center·JournalNature Genetics·DateFeb 4, 2002

High CO2 levels hamper nitrate incorporation by plants

Researchers found that elevated carbon dioxide levels hinder nitrate assimilation in plants, leading to reduced protein content and increased risk of malnutrition. The study suggests a shift from nitrate to ammonium fertilizers may be necessary to maintain crop yields under high CO2 conditions.

SourceUniversity of California - Davis·JournalProceedings of the National Academy of Sciences·DateFeb 4, 2002
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.

Rapid weight gain in infancy may lead to obesity at age 7

Researchers found rapid weight gain during the first four months of life significantly associated with an increased risk of being overweight at age seven. The study also found that even a modest increase in weight gain of 100 extra grams per month resulted in a 25% higher risk of being overweight.

SourceChildren's Hospital of Philadelphia·JournalPEDIATRICS·DateFeb 4, 2002

Canada lags in use of blood conservation techniques

A study of 4535 medical records found that autologous blood donation programs were used in only 18.6% of patients, despite being eligible, and reinfusion of blood was used in just 2.4% of all cases. Experts recommend greater cooperation among anesthetists, surgeons, and transfusionists to improve blood conservation techniques.

SourceCanadian Medical Association Journal·JournalCanadian Medical Association Journal·DateFeb 4, 2002
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.

British public supports mercy killing

A survey of British public attitudes found strong support for mercy killing, with 84% in favour of doctors assisting patients to die. Those without religious convictions were more likely to back the practice, while people with strong faiths opposed it. The results suggest a shift in public opinion on the issue.

SourceBMJ Specialty Journals·JournalJournal of Medical Ethics·DateFeb 4, 2002

Organizations renew professionalism vows

Three influential organizations of internal medicine physicians unveil a new charter on medical professionalism, outlining three fundamental principles and ten definitive professional responsibilities. The charter aims to promote an action agenda for the profession, addressing challenges in healthcare delivery, technology, and globaliz...

SourceAmerican College of Physicians·JournalAnnals of Internal Medicine·DateFeb 4, 2002

Harlem residents suffer more from oral health problems

A study conducted in Harlem found that 30% of adult residents suffer from oral health problems, with those with public insurance only slightly more likely to receive care due to limited provider availability. The high rates of unemployment and lower household income may be contributing factors.

SourceColumbia University Irving Medical Center·JournalAmerican Journal of Public Health·DateFeb 4, 2002
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.

Johns Hopkins scientists find brain's nose plug

Researchers at Johns Hopkins have discovered that a protein called CNGA4 helps the brain adapt to smells by plugging a channel in odor receptor cells. The study found that mice without this protein can't adapt to odors, and the electrical signal from these neurons stays constant over time.

SourceJohns Hopkins Medicine·JournalScience·DateFeb 4, 2002

Experts offer the skinny on search for healthy fat

Researchers at Purdue University recommend consuming omega-3 rich foods like fish, lean meat, fruits, and vegetables to balance fatty acids. Limiting omega-6 fat sources, such as processed meats and vegetable oils, can also help reduce chronic diseases.

SourcePurdue University·JournalEuropean Journal of Clinical Nutrition·DateFeb 4, 2002

Eat your veggies: Indirect anti-oxidants provide long-term protection

Researchers found sulforaphane's phase 2 enzymes protect cells against oxidants for up to three days, preventing damage from cancer, retinal degeneration, and other conditions. Eating large quantities of vegetables, especially cruciferous ones, helps fight disease by increasing antioxidant defenses.

SourceJohns Hopkins Medicine·JournalProceedings of the National Academy of Sciences·DateFeb 4, 2002

Tether for water channels found: May impact research on brain swelling

Researchers have made a groundbreaking finding that may impact brain swelling research by discovering how the Aquaporin-4 protein is tethered to Syntrophin, leading to better understanding of the blood-brain barrier. The study's results suggest that AQP4 and Syntrophin play a crucial role in regulating water flow in the brain.

SourceJohns Hopkins Medicine·JournalProceedings of the National Academy of Sciences·DateFeb 4, 2002
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.

MIT's robotic helicopter makes first acrobatic roll

The MIT team's X-Cell 60 model rotorcraft performed a 360-degree aileron roll autonomously, marking the first-ever achievement in its kind. The helicopter's small size and low cost make it an attractive option for military reconnaissance or aerial filming.

SourceMassachusetts Institute of Technology·DateFeb 4, 2002

Bodybuilders abusing prescription-only drugs bought on the Internet

A bodybuilder admitted to hospital with blackouts, abnormal heartbeat, and symptoms attributed to bromocriptine, a drug easily obtained online. Many professional bodybuilders use bromocriptine to burn fat during training, highlighting the ease of access to prescription-only drugs through the internet.

SourceBMJ Specialty Journals·JournalBritish Journal of Sports Medicine·DateFeb 4, 2002

Cave men diets offer insights to today's health problems, study shows

A recent study published in European Journal of Clinical Nutrition found that wild game meat and grass-fed beef contain a balance of essential fats, including healthy omega-3 fatty acids and lower levels of unhealthy omega-6 fat. This ratio is associated with reduced cholesterol levels and lower risk of cardiovascular disease.

SourcePurdue University·JournalEuropean Journal of Clinical Nutrition·DateFeb 4, 2002

The hidden danger of hockey

The study found that all participants exceeded their maximum heart rate target, with slow heart-rate recovery common among them. Dr. Murray Mittleman cautions against warning off players, instead suggesting regular exercise throughout the year to mitigate cardiac risks.

SourceCanadian Medical Association Journal·JournalCanadian Medical Association Journal·DateFeb 4, 2002
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.

Exposure to toxin in certain foods could cause testicular cancer

A new theory proposes that exposure to ochratoxin A during pregnancy or early childhood can induce damage to testicular DNA, increasing the risk of testicular cancer. Testicular cancer is more common among people of higher socioeconomic levels, who are more likely to breastfeed.

SourceAtrium Health Wake Forest Baptist·JournalCancer Causes & Control·DateFeb 1, 2002

Computerized tool predicts sarcoma outcome and improves ability to make better treatment decisions

Researchers at Memorial Sloan-Kettering Cancer Center developed a nomogram to predict sarcoma patient outcomes, combining age, tumor size, and other factors to provide more accurate prognosis. The tool enables doctors to tailor treatments based on individual patient risk, potentially leading to better outcomes.

SourceMemorial Sloan Kettering Cancer Center·JournalJournal of Clinical Oncology·DateFeb 1, 2002

Researchers develop world's first light-tunable 'plastic' magnet

Scientists at Ohio State University developed a plastic material that becomes highly magnetic when exposed to blue light, but loses some magnetism with green light. The technology has potential for future applications in magneto-optical systems for writing and erasing data from computer hard drives.

SourceOhio State University·JournalPhysical Review Letters·DateFeb 1, 2002

Hormone can predict future congestive heart failure

Researchers tested BNP levels in 325 patients with dyspnea, finding those with high levels had a 51% chance of developing congestive heart failure or dying within six months. The study supports the use of BNP testing as a tool for diagnosing patients at risk of congestive heart failure.

SourceAmerican College of Emergency Physicians·JournalAnnals of Emergency Medicine·DateFeb 1, 2002
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.