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Science News Archive February 1999


Page 2 of 4

Promising Bone Cancer Therapy Advances To Next Level

A clinical trial testing tin-117m DTPA, a nuclear medicine compound, may provide non-sedating pain relief and treatment for advanced-stage bone cancer. The therapy has shown promising results in easing pain for over 75% of patients, with relief lasting up to a year.

When Doctors Marry Doctors

A study of 1,208 young physicians found that women doctors married to other doctors worked fewer hours, earned less money, and took on more family responsibilities. In contrast, men MD2s also experienced benefits, including higher family incomes and successful spouses' careers.

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.

New Edition Of Ecological Monographs Is Now Available

The new edition explores the survival strategies of desert shrubs in resource islands, which support microclimate and soil health. Exotic plant species also invade areas of high native diversity, challenging traditional ecological theories.

Duke Doctors Can Now Cure Most Babies Born With Fatal Immune Disease

Doctors at Duke University Medical Center have developed a treatment that can save most babies born with severe combined immune deficiency (SCID) by giving them a family member's bone marrow within the first 3.5 months of life. This approach has eradicated the need for toxic chemotherapy, sterile environments, and lengthy hospital stays.

UNC-CH Faculty Hope To Cut Tooth Decay In State's Youngest Children

The University of North Carolina at Chapel Hill is launching a unique project to reduce tooth decay among the state's youngest children by applying fluoride varnish on their teeth starting from 9 months. Despite improvements in dental health over the past three decades, 20-25% of young children still suffer from severe tooth decay.

Apple iPhone 17 Pro

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

Comets, Like Cars, Leave Carbon Monoxide In Their Wake

A recent Arizona State University study found that comet gas tails contain high concentrations of ionized carbon monoxide, contrary to previous assumptions that they were composed mostly of water. The team's discovery explains why carbon monoxide molecules are more resilient than water molecules when exposed to sunlight.

New Climate Modeling Of Venus May Hold Clues To Earth's Future

Computer models of Venus' changing climate system may provide insights into Earth's dynamic past and potential future. The models suggest that volcanic activity could have increased greenhouse gases in the atmosphere, leading to a cooling effect on the planet.

Surveyor Spots Bright Sand Dunes On Mars

Researchers identify smaller, bright sand dunes formed of sulfates possibly gypsum, while larger dark dune fields are made of grains eroded from lava flows. The winds on Mars create landforms remarkably similar to those in some deserts on Earth.

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.

Protestors Are Up In Arms Over Experiments That Give Chimps AIDS

Researchers are exposing chimps to lethal HIV strains to develop an AIDS vaccine, with some arguing that the practice is unjustified and disrespects animal life. Chimps have already been infected with deadly strains of HIV, and more may be exposed in future experiments.

Researchers Prove Chemoprevention Can Work

A team of researchers has shown that oltipraz, a chemopreventive agent, can alter the disposition of aflatoxin in people at high risk for liver cancer. The study establishes proof of principle that chemo-preventive agents can work by changing the metabolism of environmental carcinogens.

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.

CU-Boulder Researchers To Map Polar Ice On Mars

Researchers from CU-Boulder will create a virtual sensor by combining data from two instruments orbiting NASA's Mars Global Surveyor satellite. They aim to identify the surface composition of Mars' polar ice and plot its perimeters, gaining insights into climate change on both Earth and Mars.

The Body's Anticancer Weaponry Backfires In Old Age

As people age, a protein called TNF helps to destroy diseased cells but also causes the immune system to degenerate. Researchers found that older adults' immune cells became more sensitive to TNF, leading to increased cell death and weakening of the immune system.

Most Who Lose Medicaid Have Trouble Finding Health Insurance

A study by Massachusetts General Hospital found that those who lost Medicaid coverage reported significant difficulties in accessing healthcare services, including delayed or foregone care due to cost concerns. Only a small percentage could afford insurance on their own, highlighting the need for more affordable options.

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.

Far Few Drugs Are Tested On Children

A lack of testing on children means doctors must prescribe 'off label', leaving them with uncertainty about the outcome. This also leads to liability for healthcare authorities rather than pharmaceutical companies.

Doctors Often Miss Abusive Head Injuries To Young Children, Study Says

A recent study published in the Journal of the American Medical Association found that doctors missed diagnosing abusive head trauma in young children up to 31.2% of the time. The study highlighted the importance of considering non-specific signs of abuse and performing mindful exams, particularly if a child's face is bruised.

Mama! Dada! Origin Of Language Pegged At 6 Months

Researchers at Johns Hopkins University discovered that infants as young as 6 months old begin to comprehend the sound patterns behind words like 'Mama' and 'Dada', forming a lexicon linked to socially significant people. This finding marks a significant milestone in understanding human language development.

Apple AirPods Pro (2nd Generation, USB-C)

Apple AirPods Pro (2nd Generation, USB-C) provide clear calls and strong noise reduction for interviews, conferences, and noisy field environments.

Multicomponent Malaria Vaccine Shows Promise in Laboratory Tests

A new candidate vaccine targets multiple stages of the malaria parasite's life cycle, inducing a high level of antibodies that block invasion into liver cells and inhibit growth. The multicomponent vaccine offers potential for improved protection against different parasite strains.

Fluke 87V Industrial Digital Multimeter

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

Model Polymers Reveal New Clues to Protein Folding

Researchers created a protein-like model that unfolded and refolded itself to reveal common features among folding pathways. The study provides new clues to understanding how proteins achieve their stable structures quickly and reliably.

Sony Alpha a7 IV (Body Only)

Sony Alpha a7 IV (Body Only) delivers reliable low-light performance and rugged build for astrophotography, lab documentation, and field expeditions.

Study Finds Olestra Chips Don't Generate Gastrointestinal Woes

A new scientific study investigated whether olestra-based potato and corn chips cause unpleasant symptoms, finding no significant difference between the two groups. Participants reported an average of one more day with more frequent bowel movements in the olestra group, but this effect was not substantial.

Majority Of Women Stay On Medicaid For Short Periods

A recent study found that 54% of single women entering Medicaid receive assistance for less than one year, with only 15% staying for five years. The researchers suggest that policy makers develop a stable source of coverage for former welfare recipients and shift the cost among women, employers, and Medicaid as their incomes and employ...

Low-Protein Diet Postpones Dialysis

A low-protein diet can safely delay dialysis treatment for up to a year in patients with severe chronic renal failure. The diet, rich in fruits and vegetables, provides essential nutrients without side effects.

Hopkins Researchers Uncover Basics Of Perplexing Pain Syndromes

Neuroscientists at Johns Hopkins discover that nerve signals can originate from nerves not directly injured, leading to abnormal activity in nearby nerves. The study provides a basis for targeting the skin and suggests effective therapy options for neuropathic pain syndromes.

Allelix Clones Receptor For Intestinal Growth Factor GLP-2

Researchers at Allelix Biopharmaceuticals Inc. have successfully cloned the GLP-2 receptor, which plays a crucial role in intestinal growth and nutrient absorption. The discovery provides valuable information on the specificity and action of GLP-2, a potential therapy for gastrointestinal disorders such as short bowel syndrome.

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.

Duke Scientists Engineer 'Stealth Virus' To Deliver Genes

Researchers successfully modified adenovirus, a common cold virus, to carry corrective genes to defective cells. The modified virus persisted for over two months in mice, overcoming a major barrier to widespread use of adenovirus as a genetic delivery vehicle.

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.

Porous "Nanobubblepack" Materials Discovered

Researchers have developed a new class of porous materials, called nanobubblepack, with ordered crystal-like arrangements of ultra-small spherical spaces. They can produce these materials in a range of pore sizes and fill them with various substances.

Farmworkers Love Their Jobs, Study Finds

A study by Gregory Encina Billikopf found that farmworkers generally have positive attitudes towards their employment, with many rating their jobs as excellent and valuing respect and fair treatment from supervisors. Workers also appreciate being treated like 'working people' and receiving acknowledgement for their successes.

Topical Agent Found To Kill Papillomavirus

A common surfactant, sodium dodecyl sulfate (SDS), has been shown to inactivate sexually transmitted viruses including human immunodeficiency virus (HIV) and human papillomaviruses (HPVs). The discovery provides a major step towards developing a practical, non-toxic, and inexpensive product to protect women from HPV infection.

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.

Scientists Discover Key Cog In Receptor That Governs Ripening

Researchers have found a copper ion plays a crucial role in helping plants detect minuscule concentrations of ethylene, a hormone that triggers ripening and aging. The discovery confirms a long-standing hypothesis about protein receptors and their interaction with transition metals.

Gene Study Shows Turtles Are Next Of Kin To Crocodiles And Alligators

A recent gene study published in Science magazine contradicts decades of research suggesting that birds are the closest relatives of reptile groups. Turtles have been found to be the closest living relatives of crocodilians, according to the analysis of 24 nuclear genes and 9 DNA segments from reptile cells.

‘Don’t Brand Individuals With Large-Population Studies’

Pediatric researcher Holly A. Ruff warns against applying large-group study findings to explain individual behavior, citing limitations in IQ testing and the complexity of vulnerability/resilience. Vulnerable children from disadvantaged backgrounds may face additional risk factors such as poor nutrition and lack of protective factors.

Celestron NexStar 8SE Computerized Telescope

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

MIT Software Improves Accuracy Of Robot Used In Cancer Therapy

A new MIT software has significantly improved the accuracy of a robotic system used in cancer treatment, reducing errors from 7-8mm to under 1/3mm. This breakthrough technology has potential applications beyond cancer therapy, including inspection and repair work in nuclear power facilities.

Looking For Land Mines

Researchers at Johns Hopkins University have developed an algorithm that enables computers to filter out unwanted material and locate land mines in surveillance images with a high degree of accuracy. The system uses size and shape restrictions, as well as optical frequencies, to distinguish between mines and other objects.

Microscopic Change May Double Breast Cancer Risk For Some Women

A large study has identified a microscopic change in breast tissue that may double the risk of breast cancer in some women. Radial scars were found in nearly 100 out of 1,400 women with benign breast biopsies, doubling their risk of breast cancer independently of other tissue abnormalities.

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.

Video And Data Link Provide Unique "Seal's Eye View" Of The World

A team of researchers has devised a way to track Antarctic Weddell seals as they hunt using a small video system and data logger attached to their backs. The equipment enables the researchers to compute the three-dimensional path of individual dives, allowing for major advancements in understanding underwater behavior.

Supersonic Deformation Of Materials Detected

Scientists have found that deformation can bypass the sound barrier in materials, leading to supersonic dislocations. These findings challenge conventional wisdom and open up new avenues for understanding high-speed deformation in engineering materials.

Physicians Find Donated Blood Safe, But Aging Population To Face Shortage

The US blood supply is considered extremely safe, with the risk of contracting viruses such as HIV being estimated at one in 676,000. However, a growing aging population will lead to increased demands on the blood supply, resulting in a potential shortage, and more units may need to be imported from abroad.