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Science News Archive August 1999


Page 1 of 5

Study shows black churches can help improve healthy behaviors

A large-scale study found that participating in church-related activities increased fruit and vegetable consumption among black church members. The study involved 50 black churches and over 2,500 participants, with the most significant increases seen among frequent churchgoers.

SourceUniversity of North Carolina at Chapel Hill·JournalAmerican Journal of Public Health·DateAug 31, 1999

Physical exercise improves cancer patients' health

Cancer patients who participate in regular physical exercise programs show significant improvements in physical and mental health, including enhanced stamina, muscle strength, and pain management. The studies found that exercise has a positive effect on quality of life, including functional, psychological, and emotional well-being.

SourceCenter for Advancing Health·JournalAnnals of Behavioral Medicine·DateAug 31, 1999

Public strongly associates violence with mental illness

A majority of Americans believe certain types of mental illnesses cause violent behavior, with over 90% linking stress as a cause. This stereotype persists despite recognition of mental illness and its causes, leading to social distance and reluctance to interact.

SourceCenter for Advancing Health·JournalAmerican Journal of Public Health·DateAug 31, 1999

Researchers discover genetic basis of heritable sleep disorder

A team of researchers has identified a single gene that causes familial advanced sleep phase syndrome (FASPS), a rare sleep disorder. The study found that the disorder follows a simple Mendelian inheritance pattern, making it easier to find the responsible gene and potentially leading to new treatments for circadian rhythm disorders.

SourceHoward Hughes Medical Institute·JournalNature Medicine·DateAug 31, 1999
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.

Federal, private funding to establish inflammatory disease center at UNC

The new center will conduct studies and educational activities to understand the underlying mechanisms of inflammatory diseases and their relationship to oral inflammation and systemic conditions. The research aims to improve diagnosis and treatment of patients by identifying similarities between inflammatory conditions.

SourceUniversity of North Carolina at Chapel Hill·DateAug 31, 1999

Aging hearts need social support

A recent study found that older adults with strong social connections have lower blood pressure and are less likely to develop heart disease. In contrast, those with low social support experience higher resting blood pressures, even at a younger age.

SourceCenter for Advancing Health·JournalAnnals of Behavioral Medicine·DateAug 31, 1999

The effects of St. John's Wort (Hypericum perforatum)

Research published in Molecular Psychiatry found St. John's Wort to have a better antidepressant effect than placebo and comparable effects to standard antidepressants. The herb's favorable side effect profile may contribute to its advantages over other medications.

SourceMolecular Psychiatry·JournalMolecular Psychiatry·DateAug 31, 1999

Stigma of mental illness still exists

A new national survey reveals evidence of stigma toward mentally ill individuals, viewing them as less competent and more violent. The study found that people with schizophrenia are viewed as more unable to manage daily affairs than those with depression.

SourceCenter for Advancing Health·JournalAmerican Journal of Public Health·DateAug 31, 1999
Apple iPhone 17 Pro

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

DNA fingerprinting reveals surprise in wine-grape family tree

Researchers used DNA fingerprinting to identify 16 wine-grape varieties, including Chardonnay, as the offspring of Pinot and Gouais blanc. This discovery provides valuable information for grape breeders, allowing them to preserve old varieties and develop new ones.

SourceUniversity of California - Davis·JournalScience·DateAug 31, 1999

Cigarette brand switchers more likely to quit smoking

Smokers who switch to lower tar or nicotine cigarettes for 'health reasons' are more likely to quit smoking compared to those who continue to smoke regular cigarette brands. Researchers found that 'switchers' were less dependent on nicotine and had a higher intake of fruits and vegetables.

SourceCenter for Advancing Health·JournalAnnals of Behavioral Medicine·DateAug 31, 1999

Non-drug techniques help reduce symptoms of fibromyalgia

Patients with fibromyalgia syndrome experience significant improvements in physical condition, symptom reports, and mental state when using non-drug treatments like exercise and cognitive behavioral therapy. Non-drug techniques were found to be superior to medication alone in reducing symptoms and improving daily functioning.

SourceCenter for Advancing Health·JournalAnnals of Behavioral Medicine·DateAug 31, 1999

Penn study shows that head trauma produces Alzheimer's-like neurodegeneration

Researchers found that brain trauma causes microscopic damage in the brain, leading to the formation of Alzheimer's-like plaques. The study supports previous evidence linking brain trauma to increased risk of developing Alzheimer's disease later in life.

SourceUniversity of Pennsylvania School of Medicine·JournalJournal of Neuropathology & Experimental Neurology·DateAug 31, 1999
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.

Chandra observes star's corona with unprecedented clarity

The High Energy Transmission Grating Spectrometer has made the most precise measurements ever recorded of a star's corona, revealing new insights into stellar behavior. The instrument's success marks a major milestone for modern astronomy, enabling scientists to study the chemical composition and temperature of the corona with unpreced...

SourceMassachusetts Institute of Technology·DateAug 30, 1999

Study finds parental influence still important during adolescence

A study at Ohio State University found that parents continue to have a significant influence on their adolescents' behavior throughout the teen years. The research tracked 1,725 children for five years, revealing that the effect of friends and school grew during early adolescence, but parental influence remained steady.

SourceOhio State University·JournalCriminology·DateAug 30, 1999
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.

New study finds a mouthful of reasons to consider hormone replacement therapy

A new study suggests that estrogen supplementation in postmenopausal women may slow the progression of periodontal disease, protecting their teeth. The research found that estrogen deficiency and osteopenia/osteoporosis speed oral bone loss following menopause, leading to tooth loss.

SourceAmerican Academy of Periodontology·JournalJournal of Periodontology·DateAug 30, 1999

Some adults believe illness can be 'payback' for bad behavior

A new study reveals that up to 44% of adults believe in the concept of 'immanent justice,' where bad behavior leads to severe illnesses. The study, conducted by Ohio State University researchers, found that language plays a significant role in shaping beliefs on this topic.

SourceOhio State University·DateAug 30, 1999
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.

3-D, virtual man simulates radiation's effect on the body

Xie George Xu's 3D virtual man, VIP-Man, simulates radiation's effect on the skin, lens of the eye, optic nerve, and bone marrow with high accuracy. The model will enable accurate treatment planning for diseases requiring radiation therapy, revolutionizing radiation dosimetry in biomedical sciences and engineering.

SourceRensselaer Polytechnic Institute·DateAug 30, 1999

Microbes in basalt thrive on mixed diet of toxic waste

Scientists discovered that microorganisms in basalt rock can reduce toxic hexavalent chromium to less toxic forms, especially in the presence of volatile organic compounds. The researchers found that certain bacteria, such as Arthrobacter oxydans, play a key role in this process.

SourceDOE/Lawrence Berkeley National Laboratory·JournalGeomicrobiology Journal·DateAug 30, 1999

Landmark obesity study

Researchers at Denver's Eleanor Roosevelt Institute have identified a gene linked to obesity in mice, which also plays a role in humans. The study suggests that targeting this gene could lead to effective weight control and potentially even help with diseases like Down syndrome and epilepsy.

SourceEleanor Roosevelt Institute·JournalNature Medicine·DateAug 30, 1999

Scientists suggest genetic shutdown links estrogen, heart disease

Researchers found that methylation of estrogen receptor genes may be linked to atherosclerosis and increased risk of heart disease in women. The study suggests that a genetic shutdown may contribute to the perplexing results of hormone replacement therapy on heart disease.

SourceJohns Hopkins Medicine·JournalCardiovascular Research·DateAug 30, 1999

Marriage rates differ only slightly in childhood cancer survivors

Research shows that childhood cancer survivors have lower marriage rates than the general population, but with varying rates depending on sex and race. Males are equally likely to marry as their non-survivor counterparts, while females are less likely.

SourceOhio State University·JournalMedical and Pediatric Oncology·DateAug 30, 1999
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.

Alcohol researchers identify new medication that lessens relapse risk

A new medication nalmefene has been found to reduce the risk of relapse in alcohol-dependent individuals. In a 12-week clinical trial, patients who received nalmefene were 2.4 times less likely to relapse than those who received a placebo.

SourceNIH/National Institute on Alcohol Abuse and Alcoholism·JournalArchives of General Psychiatry·DateAug 30, 1999

Inflammatory pain may help deter inflammatory diseases like arthritis

Researchers at UC San Francisco found that activated pain nerve fibers dampen the inflammatory response's first line of attack, preventing chronic diseases. The study suggests that pain acts as a negative feedback control of inflammation, which can help prevent chronic inflammatory diseases.

SourceUniversity of California - San Francisco·JournalNature Medicine·DateAug 30, 1999

Gene protects tubby mouse strain from hearing loss

Researchers at The Jackson Laboratory have identified a chromosomal region that interacts with the tub mutation to prevent deafness in the tubby mouse model. The region, known as moth1, maps to mouse Chromosome 2 and was found to protect C57BL/6J mice from hearing loss.

SourceJackson Laboratory·JournalHuman Molecular Genetics·DateAug 30, 1999
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.

Students get better grades when tested frequently in class

According to Bruce W. Tuckman, frequent quizzes can significantly improve students' grades by reducing procrastination and increasing motivation. Students with low GPAs who received weekly quizzes outperformed their peers by an average of 4-24% on midterm and final exam grades.

SourceOhio State University·DateAug 30, 1999

UMass polymer scientists: Tackiness is a matter of degrees

Researchers at the University of Massachusetts have created a switchable adhesive coating that relies on temperature changes to control its stickiness. This technology has potential applications in self-cleaning tennis racquets and golf club grips, improving performance and durability.

SourceUniversity of Massachusetts Amherst·JournalScience·DateAug 30, 1999

'Knockout' mouse may lead to major understanding of human kidney disorder

Scientists have developed a new 'Knockout' mouse model that closely mimics the human kidney disorder IgA nephropathy, providing a promising lead for treatment. The researchers found that supplying deficient mice with uteroglobin prevented the disorder from occurring, mirroring human cases.

SourceNIH/Eunice Kennedy Shriver National Institute of Child Health and Human Development·JournalNature Medicine·DateAug 30, 1999
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.

Natural repellant in Spanish cedar leaves could help tropical forests

Researchers have identified four new limonoids in Spanish cedar leaves that repel a specific insect pest, potentially helping protect endangered primary forests. Selecting seedlings with high concentrations of these substances may aid plantation-raised Spanish cedars and reduce the need for synthetic insecticides.

SourceAmerican Chemical Society·JournalJournal of Natural Products·DateAug 27, 1999

Primate genus sheds light on great ape and human origins, as reported inScience

A team of scientists has discovered a new primate genus, Equatorius, which helps reshape the complex evolutionary tree around the time when the ancestor to humans and great apes arose. The research reveals that one species, Kenyapithecus wickeri, is more closely related to this ancestor than previously thought.

SourceAmerican Association for the Advancement of Science (AAAS)·JournalScience·DateAug 27, 1999
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.

New satellite tools putting hurricanes in sharper focus

The new satellite-based tools provide unprecedented insights into tropical cyclones, allowing scientists to break them down into their component parts. This 'data fusion' technique enables the development of advanced hurricane forecasting methods, such as Wavetrak, which sheds light on the origin and intensity of these storms.

SourceUniversity of Wisconsin-Madison·DateAug 27, 1999

Study reveals how brain controls eating in normal rats

Researchers have shown how the fat hormone leptin works in the brain to trigger nerve cells that control eating. Leptin activates 'anorectic' nerve cells releasing appetite-suppressing neuropeptides, while inhibiting 'orexigenic' cells that release appetite-regulatory neuropeptides.

SourceHarvard Medical School·JournalNeuron·DateAug 27, 1999

Study details genetic basis of aging -- and how it might be delayed

Researchers at the University of Wisconsin-Madison have identified key genes that govern critical biological tasks, revealing how a low-calorie diet slows aging. The study provides insight into the genetic basis of aging and holds promise for developing age-retarding drugs.

SourceUniversity of Wisconsin-Madison·JournalScience·DateAug 26, 1999

Unprotected anal sex increasing in San Francisco

A study of 500 young gay men in San Francisco found that unprotected anal sex increased by a third to a half in four years. Approximately half of these cases involved partners of unknown or different HIV status.

SourceUniversity of California - San Francisco·JournalAIDS·DateAug 26, 1999
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.

New MIT probe gathers data for better polymers

Researchers at MIT have developed a new probe that can detect the motion of molecules in polymers as they are being stretched. This breakthrough allows for a fundamental understanding of polymer behavior, which can improve material design and mechanical properties.

SourceMassachusetts Institute of Technology·DateAug 26, 1999

Brisk walking reduces risk of heart attack in women

A new study published in the New England Journal of Medicine found that brisk walking can reduce the risk of fatal and non-fatal heart attacks in women by 30-40%. The study analyzed data from the Nurses' Health Study, estimating one-third of coronary events among middle-aged women result from physical inactivity.

SourceNIH/National Heart, Lung and Blood Institute·JournalNew England Journal of Medicine·DateAug 26, 1999

The force of gravity is the same for atoms and baseballs

Stanford researchers used atom interferometry to measure the force of gravity on individual atoms with unprecedented accuracy. Their findings strengthen the likelihood that previous neutron interferometry experiments were incorrect, validating the power of atom interferometry as a precise measurement tool.

SourceStanford University·JournalNature·DateAug 26, 1999
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.

Honey in the medicine cabinet!

A key study by Dr. Peter C. Molan presents the latest research on honey's effectiveness in treating wounds caused by antibiotic-resistant strains of bacteria. The results show that honey dressings can rapidly clear bacteria from infected wounds, making it a potential treatment for necrotising fasciitis.

SourceZuckerman Fernandes & Partners·DateAug 26, 1999

New sensing device reads chemical makeup in real-time

Purdue University researchers developed a Near-Infrared Raman Imaging Microscope called NIRIM, which can analyze composite materials in real time. The instrument uses laser light to fingerprint samples as they are viewed under a microscope, providing detailed chemical information.

SourcePurdue University·JournalJournal of Raman Spectroscopy·DateAug 26, 1999

Agency awards $8.2 million to study how air pollution affects us

The US Environmental Protection Agency has awarded $8.2 million to the University of Washington for a research center studying air pollution and its effects on human health. The Northwest Research Center will examine fine particles, particulate matter under 2.5 microns in size, and their association with daily health outcomes.

SourceUniversity of Washington·DateAug 26, 1999
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.

New DNA vaccine could fight fish disease

A new DNA vaccine has been developed to protect North American salmon and trout farms from a major disease, with successful trials showing 90% reduction in mortality. The vaccine works by introducing DNA containing the gene for one of the viral proteins, which is then taken up by cells and produces the protein to prime the immune system.

SourceNew Scientist·JournalThe New Scientist·DateAug 25, 1999

Double transplant frees patient from need for immunosuppressive drugs

Physicians at Massachusetts General Hospital have successfully induced a state of immune tolerance in a patient, allowing her to discontinue immunosuppressive drug treatment without rejecting a transplanted kidney. The breakthrough approach, known as mixed chimerism, has the potential to revolutionize organ transplantation for thousand...

SourceMassachusetts General Hospital·JournalTransplantation·DateAug 25, 1999

Gulf Coast environmental issues -- Tip sheet

Researchers have found detectable levels of tributyltin in Gulf oysters, which can be toxic to crustaceans. Additionally, the Mississippi River has shown improvement in water quality, with a decrease in volatile organic compounds detected since 20 years ago.

SourceAmerican Chemical Society·DateAug 25, 1999
Meta Quest 3 512GB

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

NIEHS-cloned gene linked to a natural substance that reduces vascular inflammation, a key to arterial clogging

Scientists have discovered that naturally occurring fatty acids can help prevent vascular inflammation, a key component in the development of atherosclerosis. The NIEHS-cloned gene produces an enzyme that makes these fatty acids, which can suppress inflammation and protect against heart disease.

SourceNIH/National Institute of Environmental Health Sciences·JournalScience·DateAug 25, 1999

Trouble for the world's turtles

Sixty experts agree that half of the world's turtle species are at risk of extinction due to human consumption. The main causes of decline are linked to ecological change, while exploitation drives 50% of threatened turtles to extinction.

SourceDOE/Savannah River Ecology Laboratory·DateAug 25, 1999