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Science News Archive 2000


Page 16 of 66

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.

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.

Apple iPhone 17 Pro

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

Brown researchers use wildcards to develop better way to sequence DNA

Researchers at Brown University have developed a new way to sequence DNA that is faster and more efficient than current methods. By inserting gaps into DNA probes, they can extract substantially more information about the DNA, allowing for the sequencing of tens of thousands of bases.

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.

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.

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.

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.

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.

DJI Air 3 (RC-N2)

DJI Air 3 (RC-N2) captures 4K mapping passes and environmental surveys with dual cameras, long flight time, and omnidirectional obstacle sensing.

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.

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.

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.

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.

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.

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.

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.

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.

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.

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.

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.

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.

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...

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.

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.

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.

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.

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.

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.

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.

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.

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.

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.

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.

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.

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.

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.

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.

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.

Fluke 87V Industrial Digital Multimeter

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

Putting muscle in the nucleus

A team of scientists from the University of Illinois at Chicago has discovered a molecular motor called myosin-1 in the nucleus, where it powers the assembly line that forges RNA messages off DNA templates. This finding offers insight into the DNA transcription process and may lead to new ways to treat cancers and other diseases.

Spacecraft readies for record low pass over asteroid

The Near Earth Asteroid Rendezvous (NEAR) mission has successfully executed the first of three orbital correction maneuvers to bring its spacecraft closer to asteroid Eros. The spacecraft will make a gradual pass within 4 miles of the asteroid's surface, gathering high-resolution images and data on the asteroid's structure.

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.

Alarming rise in CO2 concentrations presents continuing global challenge

Scientists at Rutgers University have found that humans have significantly altered the global carbon cycle over the past 200 years, leading to a rapid increase in atmospheric CO2 levels. The study's authors caution that governments must adopt new technologies to mitigate this trend and prevent unforeseen consequences for the Earth system.