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Science News Archive 2000 - Page 13


Page 13 of 66

Searching for the secrets of drug-free transplants

The University of Pittsburgh is conducting a study on transplant patients who have been off immunosuppressive drugs for up to 6.6 years, aiming to identify potential tests for transplant tolerance. The study may lead to breakthroughs in understanding and managing autoimmune diseases such as multiple sclerosis.

SourceUniversity of Pittsburgh Medical Center·DateOct 31, 2000

DIRECTing the fight against blindness

The DIRECT programme aims to establish whether candesartan cilexetil can prevent and treat diabetic retinopathy. The trial will investigate the effect of RAS blockade on diabetic patients with and without retinopathy.

SourceKetchum UK·DateOct 31, 2000

Metabolic downregulation doesn't explain dieters' weight regain

A study of 24 postmenopausal women found no significant differences in resting metabolic rate (RMR) between those who lost weight and a control group. Despite average weight loss of 13 kg, the subjects regained an average of 10.9 kg after energy balance was restored.

SourceAmerican Journal of Clinical Nutrition·JournalAmerican Journal of Clinical Nutrition·DateOct 31, 2000
Apple iPhone 17 Pro

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

A genetic basis for attachment disorganization in infants

Research suggests a genetic link between dopamine D4 receptor gene polymorphism and attachment disorganization in infants, with extensive disorganized behavior observed in up to 80% of high-risk infants. The study's findings imply a genetic susceptibility to the collapse of organized attachment under stress.

SourceMolecular Psychiatry·JournalMolecular Psychiatry·DateOct 31, 2000

Moderate alcohol consumption increases bone mineral density in elderly women

Post-menopausal women who consume moderate amounts of alcohol (2-4 drinks per week) have significantly higher bone mineral density than those who do not drink. The study found that lower levels of parathyroid hormone and increased estrogen levels were associated with the positive effect on bone health.

SourceAmerican Journal of Clinical Nutrition·JournalAmerican Journal of Clinical Nutrition·DateOct 31, 2000
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.

UCSF-Harvard team publishes major HIV therapy study over objections of sponsor; compound shows no effect on slowing disease progression

A large randomized trial evaluating a compound intended to boost the immune response of HIV patients showed no effect on slowing disease progression. The study, led by UCSF and Harvard researchers, defied the sponsor's attempt to block publication, affirming the University's right to publish unfavorable or neutral research findings.

SourceUniversity of California - San Francisco·JournalJAMA·DateOct 31, 2000

Growing number of financial ties between academic researchers and private industry shows need for strict disclosure and management

A new study by University of California, San Francisco researchers highlights the need for clear guidelines to manage potential conflicts of interest in academic research. The study found that nearly eight percent of UCSF scientists reported financial ties to industry sponsors in 1999, with complex relationships being seen as problematic.

SourceUniversity of California - San Francisco·JournalJAMA·DateOct 31, 2000

Disabled left behind by economic expansion

A Cornell University study reveals a significant decline in employment among working-age Americans with disabilities, with most experiencing a loss of economic ground despite receiving higher Social Security disability payments. The researchers argue that new national policies are needed to reintegrate young people with disabilities in...

SourceCornell University·DateOct 31, 2000
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.

Drop in homicide reflects fewer guns in hands of youth, says expert

The paper attributes the decline in homicide since the early 1990s to changes in drug markets, police response to gun carrying by young males, and economic expansion. Fewer handguns were used in homicides, especially among juveniles and young adults.

SourceInstitute for Operations Research and the Management Sciences·DateOct 31, 2000

Double headed hydra

Jan Lohmann and Thomas Bosch report a discovery of the novel peptide HEADY, which acts as a potent inducer of head formation in lower metazoans. Grafting experiments show that HEADY induces a secondary head in Hydra tissue, revealing its role as a developmental switch for axis specification.

SourceCold Spring Harbor Laboratory·JournalGenes & Development·DateOct 31, 2000

Consider typhoid vaccination for short-term travel

Short-term travelers to high-risk areas are at risk of getting typhoid fever, particularly those visiting India and Pakistan. The CDC recommends vaccination for travelers who have prolonged exposure to contaminated food and drink.

SourceAmerican Society for Microbiology·DateOct 30, 2000

The horrible impact of war on health

War has a profound impact on the environment and human health, causing widespread destruction of infrastructures, displacement of populations, and ongoing presence of radioactivity and toxins. Medical personnel working in conflicts must recognize and document sexual violence, provide necessary care, and advocate for justice to prevent ...

SourceCanadian Medical Association Journal·JournalCanadian Medical Association Journal·DateOct 30, 2000
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.

UMR research could pave way for discovery of life on Mars

Researchers like Dr. Melanie Mormile are exploring the possibility of finding ancient bacteria on Mars, which could provide evidence for life on the planet. By dating salt-loving bacteria on Earth, scientists aim to confirm whether similar organisms can survive for hundreds of millions of years.

SourceUniversity of Missouri-Rolla·DateOct 30, 2000

Five Rutgers professors named fellows of national science association

Rutgers University has five faculty members recognized as fellows of the American Association for the Advancement of Science (AAAS) for their outstanding research and achievements in various fields. Jolie Cizewski, Joan Ehrenfeld, Doina Ganea, Paul Kantor, and Thomas Rudel were cited by AAAS for their contributions to physics, ecology,...

SourceRutgers University·DateOct 30, 2000

Refugee health compromised by stress

A recent study highlights the significant impact of stress on refugee health, revealing that psychological factors such as anxiety, depression, and financial worries contribute to physical illness and mental health issues. The study found that only 6% of refugees suffered from PTSD, suggesting that a medical diagnosis may not fully cap...

SourceCenter for Advancing Health·JournalJournal of Traumatic Stress·DateOct 30, 2000
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.

Transplanted human stem cells develop into broad range of tissues, persist over a year in research at The Children's Hospital of Philadelphia

Researchers induced human adult stem cells to develop into various tissues, including bone, cartilage, and muscle, when transplanted into fetal sheep. The transplanted cells persisted for over a year without rejection, suggesting potential for tissue repair and regeneration.

SourceChildren's Hospital of Philadelphia·JournalNature Medicine·DateOct 30, 2000

Aslera™ improves bone mineral density in lupus patients

A Phase III study found that Aslera improved bone mineral density in female lupus patients by 1.8% compared to a loss of 1.8%, with greater increases observed in postmenopausal patients. This suggests that Aslera may be effective in preventing osteoporosis and fractures in women with SLE.

SourcePorter Novelli·DateOct 30, 2000

Women's and Children's Hospital, Adelaide brings home national Diamond Serif Award

The hospital won a national award for its innovative communication techniques, including posters, email, website, and media publicity. The Young Investigator Award program stressed the importance of communicating research to the public, recognizing the achievements of younger researchers.

SourceWomen's and Children's Hospital, Adelaide - Part of the Children, Youth and Women's Health Service·DateOct 30, 2000

Aslera™ improves lupus disease activity and symptoms

A Phase III study found that Aslera significantly improved disease activity and symptoms in patients with systemic lupus erythematosus (SLE), a chronic autoimmune disease. The treatment also showed benefits for bone mineral density, particularly in women on steroids.

SourcePorter Novelli·DateOct 30, 2000

Irradiation, refrigeration can add to beneficial effects of wine grapes

Researchers found that low-level ultraviolet irradiation and refrigeration can significantly increase the antioxidant compound resveratrol in grapes, potentially leading to reduced risk of high cholesterol, heart disease, and Alzheimer's. The treatment has no known side effects and may be beneficial for other grape varieties.

SourceAmerican Chemical Society·JournalJournal of Agricultural and Food Chemistry·DateOct 30, 2000
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.

Common kidney disease has a genetic basis

Researchers have identified a genetic cause for immunoglobulin A nephropathy (IgAN), the most common form of glomerulonephritis worldwide. The gene, located on chromosome 6, is linked to the disease in about 60% of families studied.

SourceHoward Hughes Medical Institute·JournalNature Genetics·DateOct 30, 2000

National drug abuse treatment clinical trials network expands

The National Drug Abuse Treatment Clinical Trials Network has expanded to include 11 regional research centers and nearly 70 community-based treatment programs. The five newly funded centers will receive $11 million over five years, bringing the total funding for all 11 components to $121 million.

SourceNIH/National Institute on Drug Abuse·DateOct 30, 2000
Fluke 87V Industrial Digital Multimeter

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

High success rates for variety of heroin addiction treatment medications

A recent study found that treatments like levomethadyl acetate (LAAM) and buprenorphine were more effective in treating heroin addiction than low-dose methadone. The study showed significant reductions in heroin use for patients on LAAM, buprenorphine, or high-dose methadone.

SourceNIH/National Institute on Drug Abuse·JournalNew England Journal of Medicine·DateOct 30, 2000

Mammography programs show benefit

Randomized trials demonstrate the effectiveness of mammography programs in reducing breast cancer mortality. The studies showed that recall rates after first and subsequent screens were 9.5% and 4.6%, respectively. Additionally, organized breast cancer screening programs can provide more comprehensive monitoring for at-risk populations.

SourceCanadian Medical Association Journal·JournalCanadian Medical Association Journal·DateOct 30, 2000

Low frequency EMF damages mice ovarian follicles

Researchers found that ELF-EMF significantly reduced the development of mouse pre-antral follicles, a crucial step for successful reproduction. Exposure to 33Hz or 50Hz frequencies impaired follicle development, with only around a third and half of exposed follicles developing antral cavities compared to controls.

SourceEuropean Society of Human Reproduction and Embryology·JournalHuman Reproduction·DateOct 30, 2000
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.

Tracking a microscopic "rocket" by its tail

Biomedical engineers at Johns Hopkins University use a laser device to view microscopic movement and detect stutter-step motions in Listeria tails. This contradicts the widely held belief that filaments grow and push in a smooth continuous motion, suggesting a new mechanism for bacterial locomotion.

SourceJohns Hopkins University·JournalNature·DateOct 30, 2000

Dengue fever an emerging public health problem

The American Society for Tropical Medicine and Hygiene has warned of an emerging dengue fever crisis in South Texas. The region's high population density and abundance of Aedes aegypti mosquitoes are fueling increased disease transmission, with risks including epidemic dengue hemorrhagic fever and death.

SourceAmerican Society for Microbiology·DateOct 29, 2000

Economic realities depleting arsenal of antiparasitic drugs

The US is facing a shortage of antiparasitic drugs due to low market demand, making treatment options scarce for diseases like schistosomiasis and liver fluke infections. The CDC has stepped in to distribute remaining stocks, but more support is needed to ensure availability.

SourceAmerican Society for Microbiology·DateOct 29, 2000
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.

Small changes may help increase identification of domestic violence

A systematic strategy to improve primary care for domestic violence victims showed promise, with clinicians reporting increased effectiveness and reduced fears. The study found a 14% increase in inquiries about domestic violence and a 30% increase in diagnoses, paving the way for cost-effective system changes.

SourceCenter for Advancing Health·JournalAmerican Journal of Preventive Medicine·DateOct 29, 2000

Future cars to have more power, thanks to MIT work

Researchers at MIT have developed a new alternator design that significantly increases electrical power in future cars while also improving fuel efficiency. The technology, which uses active switches to control current flow, solves several technical problems associated with higher-voltage systems.

SourceMassachusetts Institute of Technology·DateOct 29, 2000

Scientists report advance in tackling common viral respiratory disease

Researchers have determined the structure of a key protein from paramyxoviruses, which causes respiratory diseases in children and animals. The study reveals clues for effective new drugs and highlights the benefits of structural biology in guiding drug design against communicable diseases.

SourceNIH/National Institute of Allergy and Infectious Diseases·JournalNature Structural & Molecular Biology·DateOct 29, 2000
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.

Surgery by most experienced surgeons not always the best

A new Cornell University study found that surgeons performing carotid endarterectomies who got their licenses 20 or more years ago had the highest mortality rate among their patients. The study also found a relation between the mortality of endarterectomy patients and the number of times surgeons performed the procedure.

SourceCornell University·JournalNeurology·DateOct 29, 2000

Disease outbreak associated with international adventure race

A study found that at least 25% of Eco-Challenge participants developed leptospirosis after returning home. The CDC reports that swimming in the river was the only independently significant risk factor for infection. Travelers should investigate location risks to minimize infectious disease exposure.

SourceAmerican Society for Microbiology·DateOct 29, 2000

Dating violence affects both victims and perpetrators

A large study found nearly 12% of high school students experienced severe dating violence, with female victims more likely to report poor mental health and suicide attempts. Male perpetrators also faced negative effects, including poor physical health and dissatisfaction with life.

SourceCenter for Advancing Health·JournalAmerican Journal of Preventive Medicine·DateOct 29, 2000
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.

New device gives heart failure patients more freedom

The Kantrowitz CardioVad System is a new category of cardiac assist device that boosts the patient's own heart while preserving independence. By taking over up to 50% of the heart's function, patients can release themselves for short periods without compromising their condition.

SourceUniversity of Chicago Medical Center·DateOct 29, 2000

Parent education program helps prevent AIDS

A Cornell University parent-education program has shown that it can triple the likelihood of parents discussing HIV risk reduction with their children. The program also significantly increases the likelihood that parents will make personal risk behavior changes and obtain HIV testing. The study, which involved 375 parents in New York C...

SourceCornell University·DateOct 28, 2000
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.

UCSF researchers call for shift in HIV prevention priorities

Researchers argue that current HIV prevention resource allocations are not consistent with trends in the spread of HIV disease. They propose a shift in focus from AIDS case-based reporting to sentinel surveillance systems, citing data showing declining HIV prevalence and incidence among heterosexuals and stable rates among MSMs.

SourceUniversity of California - San Francisco·JournalScience·DateOct 26, 2000

Sandia hoppers leapfrog conventional wisdom about robot mobility

Researchers at Sandia National Laboratories create a hopping robot that can leap up to 20 feet in the air and travel five miles on a single tank of gas. The robot's unique combustion-driven piston allows it to make corrections after each jump, making it suitable for challenging environments.

SourceDOE/Sandia National Laboratories·DateOct 26, 2000
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.

Singing silently during sleep helps birds learn songs

Researchers found that sleeping songbirds' neurons fire patterns identical to song production, rehearsing the neuronal activity patterns of song generation. This suggests that sleep helps birds learn songs by replaying and strengthening the pattern during undisturbed sleep.

SourceUniversity of Chicago Medical Center·JournalScience·DateOct 26, 2000

High fat diet not associated with increased estrogen in postmenopausal women

A large study of 381 postmenopausal women found no association between high fat intake and increased estrogen levels, contrary to long-held assumptions. The researchers concluded that reducing fat intake to lower hormone levels is unlikely to be a useful strategy in preventing breast cancer.

SourceAmerican Society of Clinical Oncology·JournalJournal of Clinical Oncology·DateOct 26, 2000

Wild salmon vulnerable to climate change,Sciencestudy reports

A 300-year record of oceanic nitrogen in Alaskan lake bottoms suggests a need for flexible management policies that account for climate and lake nutrient levels. The study found population swings related to known climate changes, with the biggest decline occurring in the 20th century.

SourceAmerican Association for the Advancement of Science (AAAS)·JournalScience·DateOct 26, 2000