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Science News Archive October 2000 - Page 4


Page 4 of 6

New technique to protect water quality developed at UMaine

A new technique developed at UMaine uses free-radicals to break down toxic dyes in industrial wastewater, producing a dramatic color reduction. The process has been used to clean up toxic waste sites and protect organic compounds from damage by free-radicals.

SourceUniversity of Maine·JournalJournal of Biotechnology·DateOct 17, 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.

One in three women may have been abused in childhood

A recent report from the World Bank suggests that violence against women is responsible for one out of every five working days lost. Research found a third of women aged 40-50 had been abused as children, with common symptoms like joint pain and fatigue more likely in those who were beaten or sexually abused.

SourceBMJ Specialty Journals·JournalJournal of Epidemiology and Community Health·DateOct 17, 2000

Dietary fat itself not likely to cause breast cancer

A study suggests that dietary fat is unlikely to cause breast cancer, but rather depletes the body of an essential nutrient that protects against the disease. The research concludes that age and oestrogen also play a role in breast cancer development.

SourceBMJ Specialty Journals·JournalJournal of Epidemiology and Community Health·DateOct 17, 2000

Public programs encourage retirement at 60, says research

Researchers found that Canadians are less likely to retire in a year where working an additional year would increase their lifetime benefits significantly. The study shows that seniors recognize the importance of retiring at age 60 due to incentive systems in place.

SourceUniversity of Toronto·DateOct 17, 2000

Drug overuse may make yeast infections harder to treat

A study by University of Toronto researchers found that repeated exposure to azole drugs can lead to the development of drug-resistant yeast infections. About 75% of women between 18 and 35 will experience at least one yeast infection caused by Candida albicans, a common type of yeast fungus.

SourceUniversity of Toronto·JournalJournal of Bacteriology·DateOct 17, 2000
Apple iPhone 17 Pro

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

Rank main occupational factor associated with ill health among Gulf War veterans

A survey of over 3000 Gulf War veterans revealed that lower ranks were significantly more likely to report psychological and physical ill health, with privates being 20% more likely than non-commissioned officers. Discharge from military service was also linked to a higher risk of reported ill health.

SourceBMJ Specialty Journals·JournalJournal of Epidemiology and Community Health·DateOct 17, 2000

Bifidobacteria act as a barrier against infection

Researchers have identified two Bifidobacterium strains that exhibit potent antimicrobial properties, protecting the intestinal tract from lethal infection with salmonella. These strains, CA1 and F9, decrease bacterial numbers, prevent entry into cells, and work in concert with gut lining enzymes to produce a barrier against infection.

SourceBMJ Specialty Journals·JournalGut·DateOct 17, 2000

Researchers uncover secret to mass extinction events

A new study revealed that seasonal temperature changes, specifically colder winters, contributed to the Eocene/Oligocene mass extinction. Researchers analyzed otoliths from fish that survived the event, discovering a 4-degree Celsius drop in winter temperatures.

SourceUniversity of Michigan·JournalNature·DateOct 17, 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.

Finding by Syracuse University and University of Michigan researchers reveals secret to mass extinction events

Researchers used a new technique to analyze fossilized otoliths, revealing seasonal temperature records that led to the discovery of colder winters as the cause of the Eocene/Oligocene boundary mass extinction. This finding sheds light on the global-scale problem and provides new insights into climate change's impact on evolution and e...

SourceSyracuse University·JournalNature·DateOct 17, 2000

Blending addiction treatment and research

The meeting aims to facilitate moving drug addiction research into clinical practice, with discussions on using research in real-life settings and forging partnerships. Presentations will cover topics such as the effects of drugs on the brain, gender issues in treatment, and innovations in medication development.

SourceNIH/National Institute on Drug Abuse·DateOct 17, 2000
Meta Quest 3 512GB

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

Physicians need to counsel patients about online health information

A significant number of patients use the internet as a source of medical information, with over 25% using it in the last year. Physicians should initiate dialogue early on concerning where patients should look for accurate, comprehensive and understandable online health information.

SourceDuke University Medical Center·JournalJAMA·DateOct 16, 2000

New obesity treatment program to sustain weight loss, UCSF study finds

A new obesity treatment program has resulted in sustained weight loss for six years by developing two fundamental internal skills: self-nurturing and effective limit setting. Participants lost an average of 13 pounds in the first 12 weeks and continued to lose weight after treatment ended.

SourceUniversity of California - San Francisco·DateOct 16, 2000

National Science Board to Meet (October 19)

The National Science Board will convene an open session on October 19, 2020, at the National Science Foundation. The agenda includes swearing-in of new members, review of minutes from August 2000, and discussion of NSF planning issues such as the Mathematics Initiative and stipends.

SourceU.S. National Science Foundation·DateOct 16, 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.

Annals of Internal Medicine, Tip Sheet, October 17, 2000

A study by researchers compared colonoscopy to fecal occult blood tests (FOBT) and sigmoidoscopy in screening for colorectal cancer. The findings show that colonoscopy is the most cost-effective option, reducing death rates at relatively low costs by removing precancerous polyps and detecting cancer at early stages.

SourceAmerican College of Physicians·JournalAnnals of Internal Medicine·DateOct 16, 2000

Canada's social safety net missing the hungry

A study found that 57,000 Canadian families struggle with hunger due to lack of funds for food. Parents often sacrifice their health to provide for their children, highlighting the need for improved social safety nets.

SourceCanadian Medical Association Journal·JournalCanadian Medical Association Journal·DateOct 16, 2000

Randomized trials vs. clinical reality

A review of patients treated with NIPPV found mortality rates were 28.6% higher in the clinical setting compared to randomized trials. The authors recommend developing practice guidelines to optimize NIPPV use. Dr. Sheldon Magder comments on the limitations of relying heavily on randomized trial findings in clinical settings.

SourceCanadian Medical Association Journal·JournalCanadian Medical Association Journal·DateOct 16, 2000
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.

The environment and cancer

The environment plays a significant role in cancer development, with occupational factors and environmental pollution attributed to 5-7% of cancer deaths. Dr. Richard Clapp reviews the relationship between environmental exposure and cancer, emphasizing the importance of cancer prevention and physician screening for hazardous exposures.

SourceCanadian Medical Association Journal·JournalCanadian Medical Association Journal·DateOct 16, 2000

The pathway of estrogen metabolism affects breast-cancer risk, UB research shows

A prospective study of 10,786 Italian women found a 40% lower risk of breast cancer in premenopausal women with the C-2 estrogen metabolism pathway, which produces less active by-products. Lifestyle changes such as physical activity and a low-fat diet high in cruciferous vegetables may shift estrogen metabolism from high-risk to low-risk.

SourceUniversity at Buffalo·JournalEpidemiology·DateOct 16, 2000
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.

Weizmann Institute scientists develop a novel system for analyzing genetic data that mimics the human capacity for unsupervised learning

The team designed a unique mathematical system for analyzing genetic data based on a computer algorithm that clusters information into relevant categories. The algorithm mimics unassisted learning, categorizing tissue samples into separate clusters according to their gene expression profiles.

SourceAmerican Committee for the Weizmann Institute of Science·JournalProceedings of the National Academy of Sciences·DateOct 15, 2000

Supplemental calcium taken daily can limit early on-set of osteoporosis in children with severe asthma, National Jewish Research finds

Children with severe asthma are at risk of bone loss due to inadequate dietary calcium. Taking a daily calcium supplement can help prevent this condition. Researchers found that only 5-10% of children at the study site were taking a calcium supplement, highlighting the need for increased awareness and supplementation.

SourceNational Jewish Health·JournalJournal of Allergy and Clinical Immunology·DateOct 15, 2000

Better tools needed to detect delirium in ERs

A cross-sectional study found that only 35% of elderly patients with delirium were diagnosed in the emergency department, highlighting the need for improved detection methods. The study emphasizes the importance of developing better tools to identify delirium in ER settings.

SourceCanadian Medical Association Journal·JournalCanadian Medical Association Journal·DateOct 15, 2000

Interferon Alfa 2b extends overall survival and relapse-free survival in patients with high-risk melanoma, reports University of Pittsburgh-led U.S. I

A definitive study led by John Kirkwood at the University of Pittsburgh Cancer Institute found that high-dose interferon alfa 2b extends both overall survival and relapse-free survival in surgically treated high-risk melanoma patients. This regimen significantly outperforms a comparison vaccine, GMK, in terms of survival impact.

SourceUniversity of Pittsburgh Medical Center·DateOct 15, 2000
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.

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.

Searching for new medications to treat alcoholism

Researchers found that 6-beta naltrexol, a metabolite of naltrexone, can reduce alcohol drinking in rats. The study suggests that 6-beta naltrexol is a potential new medication for treating alcohol dependence.

SourceAlcoholism: Clinical & Experimental Research·DateOct 14, 2000

Medical research protocols should be completely overhauled

The current medical research protocols are out of step with evidence-based medicine and new technology developments, suggests an analysis in the Journal of Medical Ethics. Patients taking part in research deserve the same safety and regulation standards as public transport passengers, yet often receive inadequate care.

SourceBMJ Specialty Journals·JournalJournal of Medical Ethics·DateOct 14, 2000

Gender differences in private substance abuse treatment retention

A study in Alcoholism: Clinical & Experimental Research examines gender-specific reasons for treatment retention in private substance abuse treatment programs. Women's staying power is linked to being unemployed, married, and having higher incomes, while men's staying power is related to receiving employer pressure and having a goal to...

SourceAlcoholism: Clinical & Experimental Research·DateOct 14, 2000

NIDA researchers find that animals exposed to marijuana's active component will self-administer the drug

Researchers at the National Institute on Drug Abuse found that squirrel monkeys will self-administer intravenous injections of THC, a psychoactive compound in marijuana, in doses comparable to those used by humans. This study suggests that marijuana has similar abuse potential as other addictive substances like cocaine and heroin.

SourceNIH/National Institute on Drug Abuse·JournalNature Neuroscience·DateOct 14, 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.

Tracking a genetic basis for alcohol-related hypertension

A study in mice found that genetic background influences blood-pressure response to acute alcohol exposure, with some strains experiencing increased blood pressure and others not. The findings suggest a predisposition to greater increases in blood pressure with alcohol consumption, potentially leading to hypertension.

SourceAlcoholism: Clinical & Experimental Research·DateOct 14, 2000

Blooming health thanks to a frog

Researchers used frog extracts to study DNA replication in Bloom's Syndrome, finding the protein essential for this process. This discovery may lead to new treatments for human cancer, as the protein is likely to have the same function in humans.

SourceCold Spring Harbor Laboratory·JournalGenes & Development·DateOct 14, 2000

Why does an anti-depressant work for some people, but not others?

Researchers found distinct differences in brain activity between responders and non-responders to fluoxetine, with widespread chain of events kicking in across multiple brain regions over time. The study identified critical brain areas that appear to be 'switches' controlling the direction of treatment response.

SourceBaycrest Centre for Geriatric Care·JournalBiological Psychiatry·DateOct 13, 2000
Celestron NexStar 8SE Computerized Telescope

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

Gene found to contribute to deadly form of breast cancer

A study published in Cancer Research reveals that a gene called RhoC GTPase contributes to the development of an aggressive and deadly form of breast cancer. The research found that overexpression of this gene in normal cells leads to rapid tumor growth, invasion, and metastasis.

SourceMichigan Medicine - University of Michigan·JournalCancer Research·DateOct 13, 2000

Drugs found to protect the kidneys

A study by the NIH found that ACE inhibitors and beta blockers significantly reduced kidney failure risk compared to calcium channel blockers. High blood pressure management has improved stroke and heart disease risks, but kidney failure remains a concern for African Americans.

SourceNIH/National Institute of Diabetes and Digestive and Kidney Diseases·DateOct 12, 2000

Common screening tools for tamoxifen-induced endometrial cancer are ineffective

Two studies found that common screening techniques for tamoxifen-induced endometrial cancer are ineffective. Tissue biopsies and transvaginal ultrasound screenings detected few abnormalities and led to unnecessary procedures. Patients should be reassured and monitored for abnormal vaginal bleeding instead.

SourceAmerican Society of Clinical Oncology·JournalJournal of Clinical Oncology·DateOct 12, 2000

UF scientists trick strawberry plants into producing early crop

University of Florida scientists are helping North Florida growers produce a crop in November by tricking strawberry plants into acting like spring has arrived. The process involves putting young strawberry plants in refrigerated trailers for about two weeks, making them think they've been through the required winter chilling period.

SourceUniversity of Florida·DateOct 12, 2000

Ion microscopy pinpoints drugs inside cancer cells

Researchers at Cornell University have developed a new imaging technique called ion microscopy, which offers high sensitivity for detecting isotopes of elements. This technique promises to open new avenues of cancer research by localizing anticancer drugs inside tumor cells.

SourceCornell University·JournalAnalytical Chemistry·DateOct 12, 2000
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.

Defining a niche that regulates stem cells

Researchers have identified regulatory cells that govern the behavior of stem cells in Drosophila, revealing a specialized cellular environment known as a niche. The niche environment provides support needed for stem cell self-renewal, and its characteristics may offer insights into human stem cell regulation.

SourceHoward Hughes Medical Institute·JournalScience·DateOct 12, 2000

Meteorite may be primitive solar system material, sayScienceauthors

A fragile, charcoal-like meteorite that plummeted onto a frozen Canadian lake last January may represent the most primitive solar system material yet studied. Analysis of its mineral composition and oxygen and carbon isotopes suggests it could be part of a new class of carbonaceous chondrites, more primitive than any found previously.

SourceAmerican Association for the Advancement of Science (AAAS)·JournalScience·DateOct 12, 2000

Scientists Scientists detect mom's influence on obesity and diabetes

Researchers identified gene locations involved in fat deposition and diabetes risk, with effects influenced by a mother's weight. Mice with genetic predisposition for diabesity were less obese if nursed by a lean foster mother, hinting at the role of maternal environment in triggering obesity and diabetes.

SourceCold Spring Harbor Laboratory·JournalGenome Research·DateOct 12, 2000

Taming wild wheat

Researchers at Cold Spring Harbor Laboratory have created a 'map' of the wild emmer wheat genome, revealing hundreds of unique DNA sequences on 14 chromosomes. This new understanding will aid in breeding better wheat crops and shed light on the evolution of wheat.

SourceCold Spring Harbor Laboratory·JournalGenome Research·DateOct 12, 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.

Dual-earner couples follow traditional gender roles

A new study by Cornell University found that dual-earner couples tend to follow traditional gender roles, with husbands' careers given priority. This 'neotraditional' model helps couples manage work and family demands, but may have negative consequences for women's job security and advancement opportunities.

SourceCornell University·JournalSocial Problems·DateOct 12, 2000