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Science News Archive 2005


Page 56 of 165

Advice to cardiac patients regarding sports and exercise

Regular aerobic exercise training is safe and beneficial for cardiac patients, even those with reduced left ventricular function. Appropriate screening and controlled exercise intensity are crucial to minimize risk. Athletes with coronary artery disease can participate in low-intensity competitive sports under supervision.

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.

Telemonitoring of multiple vital parameters in chronic heart failure

The study evaluates the feasibility and effectiveness of continuous telemonitoring of multiple disease-relevant parameters in patients with chronic heart failure. The results show that treatment can be adjusted before deterioration, leading to a gain in feeling of security and reduced hospital re-admissions.

Calcium scans help predict heart disease in healthy men

A study found that coronary calcium scans can predict heart disease in healthy men, particularly those between 40-50 years old. The scans detected coronary calcium in approximately 20% of the men, and they were 11.8 times more likely to suffer a cardiac event than those without deposits.

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.

Extinct giant deer's descendant found in UK

Researchers have discovered the closest living descendant of the extinct giant deer, a species that once roamed the UK. The fallow deer was found to share key characteristics with the ancient animal, including flattened antlers and similar skull and teeth features.

Newer drugs to reduce high blood pressure better than standard treatments

The Anglo-Scandinavian Cardiac Outcomes Trial (ASCOT) found that newer antihypertensive drugs, such as amlodipine and perindopril, were more effective than standard diuretic or ß-blocker therapy in reducing blood pressure and preventing major cardiovascular events. The study showed a significant reduction in stroke events and fewer cas...

A new link between stem cells and tumors

Scientists at EMBL and IRB-PCB found that disrupted genes in stem cells can lead to deadly tumors. The study shows that specific molecules control cell division and differentiation, and their disruption can result in cancer.

Researchers discover why melanoma is so malignant

Melanoma cells can efficiently spread due to reactivation of dormant Slug gene, which enables swift travel through the body. This discovery sheds light on why melanoma metastasizes at an earlier stage than other cancers.

Anker Laptop Power Bank 25,000mAh (Triple 100W USB-C)

Anker Laptop Power Bank 25,000mAh (Triple 100W USB-C) keeps Macs, tablets, and meters powered during extended observing runs and remote surveys.

How 'dirt' could educate the immune system and help treat asthma

A study by Professor Peter Openshaw suggests a link between reduced childhood infections and increased asthma prevalence, highlighting the importance of early exposure to dirt. The 'hygiene hypothesis' proposes that a lack of environmental factors can lead to immune system imbalances, making individuals more susceptible to diseases.

Embryonic stem cells accrue genetic changes

Researchers found that most human embryonic stem cell lines exhibit gross genetic changes after a year to three years of growth in the lab. These changes can affect chromosome numbers, gene expression, and mitochondrial DNA sequences. The study highlights the need for close monitoring and further investigation into the effects of these...

Is rheumatoid arthritis becoming milder?

Researchers in The Netherlands found a positive trend in rheumatoid arthritis disease activity over the last decade, coinciding with more aggressive treatment strategies. The study showed that patients diagnosed with RA within the last ten years had less severe disease activity and a more favorable course of their disease.

K-State researchers designing better drug to treat cystic fibrosis

K-State researchers are working on a new drug to treat cystic fibrosis by designing chloride-selective pores that can help ions travel across cell membranes. Their goal is to create a medication that works efficiently and effectively at low doses, improving the lives of those affected by the disease.

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.

K-State researchers study insects' immune system

Researchers are studying how insects recognize infection caused by microorganisms and the pathway of reactions that follow in their immune systems. The goal is to understand how to disrupt disease transmission by blood-feeding insects, such as mosquitoes.

Apple iPhone 17 Pro

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

Joint pain and estrogen deprivation

Recent evidence suggests a link between estrogen deprivation and joint pain, particularly in women undergoing hormone therapy for breast cancer. Studies have shown that aromatase inhibitors and other estrogen-depleting treatments can increase the risk of musculoskeletal symptoms, including joint pain.

Meta Quest 3 512GB

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

New insights into the software of life

The FANTOM consortium's findings provide a major step towards identifying all protein building blocks, using multiple mechanisms to produce different forms of proteins in mammals. The research also explores the importance of non-coding RNA in development and evolution, revealing why complex organisms evolved beyond simple genes.

Delaware scientists make significant advance in study of small RNAs

Researchers from the University of Delaware made a breakthrough in studying small RNAs by applying Massively Parallel Signature Sequencing (MPSS) to Arabidopsis. The study identified over 75,000 different small RNA sequences and provided quantitative information on their abundance and regulation.

Most chronic hepatitis C sufferers will develop cirrhosis in later life

A recent study published by the American Gastroenterological Association found that nearly 80% of Asian patients with chronic HCV developed cirrhosis after 60 years of infection. The study's results confirm that fibrosis progression is the same across ethnic groups, leading to cirrhosis and liver disease at a similar rate in everyone.

Celestron NexStar 8SE Computerized Telescope

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

New method rapidly detects potential bioterror agent

A new combination of analytical chemistry and mathematical data analysis techniques allows rapid identification of Coxiella burnetii, a potential bioterrorism agent causing Q fever. The method is 95.2% accurate and delivers results in 5 minutes compared to 2 hours for current detection methods.

New bacterial gene provides meningitis mechanism

Researchers identified a novel GBS gene, iagA, that facilitates the bacteria's interaction with host cells by synthesizing a glycolipid anchor. This discovery contributes to understanding the molecular pathogenesis of invasive GBS infection, highlighting the importance of proper cell surface anchoring for bacterial invasion and virulence.

Mammalian transcriptome mapped, and it makes antisense

The mammalian transcriptome has been completely mapped, showing a massive abundance of noncoding RNAs and antisense genes. This discovery has significant implications for our understanding of genetics, gene regulation, and cellular functions.

Study holds promise for new way to fight HIV

A new study confirms that APOBEC-3G edits the HIV genetic code, preventing viral reproduction. Higher levels of A3G are associated with lower HIV viral levels and higher CD4 T cell counts in patients. This discovery holds promise for a novel approach to fight HIV.

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.

Highlights from the September Journal of the American Dietetic Asociation

A multi-center study found that cereal consumption was positively associated with lower body mass index (BMI) and adequate nutrient intake in adolescent girls. The researchers also suggested that other factors related to cereal consumption, such as eating healthful foods like milk and juice, may have an impact on girls' diets.

Mayo Clinic research shows promise for myeloma patients

The study found that Rev/Dex reduced myeloma cancer protein levels by over half in 91% of patients, with manageable side effects and a rapid response time. This oral treatment offers an attractive alternative to traditional intravenous therapies.

UCSF study points to link to neurodegenerative disease target

A UCSF study has identified a signaling system composed of several genes as crucial for maintaining the stability of the nervous system. The research, led by Graeme Davis and Benjamin Eaton, found that a cytoplasmic enzyme called LIM Kinase1 is essential for stabilizing synaptic connections in fruit flies.

System drastically cuts down botulism detection time

The BEADS system detects toxin from environmental samples, then uses antibodies to purify and concentrate the pathogen or toxin for accurate detection. The system has been commercially licensed and can detect multiple pathogens simultaneously.

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.

American Thoracic Society Journal news tips for September 2005 (first issue)

Children with asthma are at significantly greater risk for serious airway constriction if their fathers have a history of the disease. A 5-year study found paternal asthma strongly associated with childhood airway hyperresponsiveness, a defining feature of asthma. In contrast, maternal asthma showed no correlation.

GABA halts stem cell production in the brain

Research by Yale University scientists reveals GABA's role in regulating neural stem cells. The study suggests that enhancing GABA's function may limit neurogenesis and increase the risk of glioma, a type of brain tumor.

Fluke 87V Industrial Digital Multimeter

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

Drug can reduce hot flashes for women with breast cancer

A new study by Kishan Pandya and colleagues found that gabapentin significantly reduced hot flash severity scores in women with breast cancer. The results suggest that gabapentin can be added to the list of non-hormonal agents for controlling hot flashes in these patients, with further studies needed on higher doses.

Mysterious molecules begin to yield their secrets

Researchers at Scripps Research and GNF develop a strategy to identify functions of noncoding RNAs, which are abundant in human cells. The team screened a library of noncoding RNAs and identified eight that appeared to have functional roles, including one that regulates nuclear factor of activated T-cells (NFAT) signaling.

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.

Prostate cancer uses Wnt signaling proteins to promote growth of bone tumors

Prostate cancer cells manipulate Wnt signaling proteins to establish themselves in bone tissue, producing dense bony lesions characteristic of prostate cancer. The study found that altered levels of Wnt activity promote osteoblastic lesions, while high levels of DKK-1 inhibit Wnt activity, leading to highly osteolytic tumor lesions.

Deep-sea exploration beneath Katrina's wake

The Harbor Branch Oceanographic Institution's Deep Scope expedition has made several groundbreaking discoveries, including the detection of ultra-violet light sensitivity in a deep-sea crab. The team also captured new video footage of a large, recently discovered squid species that appears to be attracted to bioluminescent displays.

Giant optical telescope in Africa comes online

The SALT Telescope will provide unparalleled views of the southern Milky Way and nearby galaxies like the Magellanic Clouds. The telescope's Prime Focus Imaging Spectrograph will capture high-resolution pictures and spectra, enabling scientists to study star formation and galaxy evolution.

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.

JCI table of contents September 1, 2005

Researchers have discovered a novel Group B Streptococcus (GBS) gene, iagA, that helps the bacteria invade the human blood-brain barrier, leading to meningitis. A glycolipid treatment has been found to induce long-term anergy in natural killer T cells, which could impact its use as an immune activator.

MIT researchers find clue to start of universe

A team of scientists led by Alan E.E. Rogers successfully detected deuterium using a radio telescope array, a significant breakthrough in understanding the universe's origins. The detection has implications for understanding dark matter and cosmic baryon density.

Fermilab and Caltech successfully use UltraScience Net

The UltraScience Net enables fast data transfer between research institutions, with speeds of up to 20 Gigabits per second. Fermilab and Caltech successfully tested the system, achieving a rate of 7 Gigabits per second, thousands of times faster than usual high-speed Internet connections.

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.

Reducing antibiotic use lowers rates of drug-resistant bacteria

Researchers in France tested two intervention methods to reduce antibiotic use in kindergarteners, resulting in a 15% decline in antibiotic use. The study found that reduced antibiotic pressure allowed drug-susceptible bacteria to re-establish themselves as dominant colonizers of the respiratory tract.

Mouse genome much more complex than expected

The mouse genome is more complex than expected, with over 60% of mRNAs not encoding proteins. The discovery challenges the traditional view that genes contain specific protein blueprints.