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Science News Archive November 1998


Page 3 of 5

Study Proves Unequal Leg Length Can Contribute To Osteoarthritis

Researchers found a strong association between leg length discrepancies of two centimeters or more and an increased risk of knee arthritis by up to 70 percent. Simple adjustments, such as special shoes or exercises, could help prevent or slow progression of osteoarthritis in millions of people.

New Guidelines Issued For Diagnosing And Treating Heart Valve Disease

The new guidelines provide recommendations for diagnosing and treating heart valve disease, covering common disorders such as mitral valve prolapse and aortic stenosis. It also addresses rare ailments, provides advice on evaluating and treating adults, teens, and pregnant women with defective valves.

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.

Penn Physicians Develop Clinical Guidelines For Herbal Therapies

Penn physicians developed clinical guidelines for herbal therapies, emphasizing the importance of understanding herbal agents' properties and potential risks. The guidelines caution against using certain herbal products, especially those with toxic effects, and recommend discussing risks and benefits with patients.

Most Smokers Continue To Light Up After Heart Surgery

A recent study found that almost three in five smokers who undergo heart surgery continue to smoke after their procedure. Researchers examined 1,829 individuals who had bypass surgery or angioplasty and found that younger patients, African Americans, and those with a prior history of heart attack were more likely to be 'die-hard' smokers.

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.

Vitamin E Supplement Decreases Autoantibodies To Oxidized LDL

Researchers at Emory University found that vitamin E supplementation decreased autoantibodies associated with oxidation of lipoproteins in healthy women. The study suggests that antioxidants like vitamin E may help attenuate oxidation and reduce the risk of atherosclerosis.

Web Site Explores How Climate Change Affects Human Health

The Johns Hopkins University engineering graduate student created a website to address questions on the impact of climate change on public health and policy makers' responses. The site provides research tools, links to experts, and raw data for researchers.

Lifetime Risks And Costs Of Heart Disease Much Higher For Obese

The study found that obesity significantly increases the risk of developing coronary heart disease, with risks rising from 35% for non-obese men to 46% for severely obese individuals. The expected lifetime costs of heart disease are also higher for obese individuals, ranging from $6,000 for mildly obese men to $16,400 for severely obes...

Smoking And Preschoolers: Does Familiarity Breed Attempts?

A survey of preschoolers found that those from smoke-free homes were less likely to want to smoke later in life. Children who saw pictures of smoking characters like Joe Camel incorrectly associated them with smoking, highlighting the influence of early exposure on attitudes towards smoking.

Chronic Stress Puts Heart Disease Patients At Greater Risk

Research shows that caregivers with Alzheimer's disease are more likely to develop a high metabolic syndrome level, which increases the risk of heart attack and other health complications. Interventions such as exercise, psychological uplifts, and improved diet may help reduce stress and mitigate this risk.

Apple iPhone 17 Pro

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

Men And Women’s Hearts React To Different Stresses

Research found that men and women have distinct reactions to stressors, including disagreements and skill challenges. Husbands tend to respond more strongly to perceived threats to their status and power, while wives are more reactive to interpersonal conflicts and quality of interaction.

Sandia, Compaq Smash World Record In Large Database Sorting

Sandia National Laboratories and Compaq have developed a system that sorts a terabyte of data in under 50 minutes, three times faster than the previous record. This achievement demonstrates the potential for fast and cost-effective data sorting, which can be used to identify patterns in large datasets.

Beta Blocker Significantly Improves Heart Failure Survival

Adding beta-blocker metoprolol to standard treatment for heart failure increases survival by about 35 percent, according to a large international study. The study, called Metoprolol CR/XL Randomized Intervention Trial in Heart Failure (Merit-HF), was conducted in the US and 13 other countries.

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.

Gene Influences How Lifestyle Affects Blood Cholesterol

A study found that a gene called apolipoprotein E (apo)E influences blood cholesterol levels and predicts how much those levels are affected by weight gain, smoking, and other lifestyle factors. People with the apoE-2 variant have a beneficial cholesterol profile, but risk factors like smoking and obesity can negate this benefit.

More Than Half Of Children Eat Too Much Fat

A new study reveals that more than half of children consume excessive amounts of fat, leading to increased risk of cardiovascular disease. The study found that most children exceeded the recommended levels of total fat intake and also had inadequate consumption of desirable monounsaturated fats.

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.

Drug Abuse Behavior Driven By Neurochemical Changes In The Brain

A study has found that environmental stimuli can trigger neurochemical changes in the brain similar to those caused by cocaine use, leading to overwhelming cravings in recovering addicts. Dr. Leonard Howell's research suggests that a medication targeting the serotonin system may prevent such cravings.

Working Out The Risk For Stroke

A recent study by the American Heart Association found that physical activity significantly reduces the risk of stroke in individuals aged 45-64. Those who were more active at work had a 49% lower risk, while those with high levels of sports activity had a 23% reduced risk.

UF Joins NASA's Virtual Astrobiology Institute To Look For Life On Mars

The University of Florida is part of a virtual Astrobiology Institute studying the origin and evolution of life in the galaxy. Chemists are searching for universal DNA features that could be found in potential Martian life, which may help overcome the difficulty of recognizing non-terrestrial life.

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.

High Blood Pressure Can Lead To Mental Decline

Researchers found that elevated blood pressure is a strong predictor of changes in brain structure and related cognitive functioning. All participants showed declines in mental abilities over time, with higher blood pressures associated with greater declines, particularly for visual-spatial ability and speed of performance.

Regular Exercise May Protect Against Negative Effects Of Immune System

A University of Colorado at Boulder study found that rats who exercised regularly before stress exposure were protected against its suppressive effect on immune response. Regular exercise in moderation can help buffer the negative effects of stress on the immune system, according to the researcher.

Role Of Government Branches In Tobacco War

A new University of Michigan study investigates the impact of tobacco litigation on public health policy, concluding that courts are not well-suited for adopting policy changes. The authors argue that building a moral and political case is essential to achieve tobacco control goals through legislative and regulatory processes.

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.

UCSF Study Finds DHEA Benefits Cardiovascular Function

Researchers at UCSF have found that DHEA can reverse the effects of Endothelin-1, a peptide elevated in most heart diseases, by dilating coronary arteries and increasing endothelial cell function. This study provides scientific credence to DHEA's potential benefits on cardiovascular health.

New Multi-Center Study Proves Non-Surgical Treatment Reduces Angina

A new study finds that Enhanced External Counterpulsation (EECP) is effective in reducing angina in individuals with coronary artery disease. EECP, a non-invasive therapy, has been proven to improve exercise tolerance and reduce angina attacks, offering relief for patients who suffer from this condition.

Famous Faces Activate More Parts Of The Brain

Researchers found that famous faces activate both sides of the brain, whereas unfamiliar faces only activate the right side. This suggests that paying attention to a person's name and face can improve memory recall.

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.

ACE Spacecraft Braces For Fierce Meteor Storm

The Advanced Composition Explorer (ACE) spacecraft is taking precautions to withstand the November 17 Leonid meteor storm, which could pose a risk due to its close proximity to the comet's wake. NASA technicians are adjusting the spacecraft's orientation and instruments to minimize damage from the massive cloud of Leonid particles.

Exercise May Lengthen Life In Patients With Congestive Heart Failure

Patients with congestive heart failure who exercised had higher survival rates after four years compared to those who did not, with a 92% versus 64% rate of survival. The study's findings support the potential benefits of exercise for patients with this condition and underscore the need for further research.

The Heart-Healthy Cup Runneth Over -- With Grape Juice

A study by Jane E. Freedman found that purple grape juice inhibits platelet aggregation, reducing blood clotting risk and improving cardiovascular health. The flavonoid quercetin was also shown to have antioxidant properties, preventing the inactivation of nitric oxide.

Vulnerability To Compulsive Gambling Is Partly Inherited

A study of 3359 twin pairs found that genes play a significant role in two behaviors contributing to compulsive gambling, with familial factors explaining 62% of the behavior. The researchers estimate that about half of these behaviors are genetically mediated, highlighting the importance of inherited factors in vulnerability to gambling.

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.

Advisory: Researchers Present Work At Annual Meeting

A study by U-M epidemiologists found that Americans living in cities with greater income disparities are more likely to die than those in cities with lower disparities. Researchers also examined the characteristics of individuals using emergency contraceptive pills and proposed a plan to improve home care efficiency.

Sex-Specific Behavior Controlled By Peripheral Nervous System

A Georgia Tech study found that sensory neurons in animal limbs play a critical role in determining what information is received and what behaviors result. Researchers successfully transplanted female feeding claws onto males, demonstrating novel input processing by the brain.

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.

Center Widens Regional Role In International Security

The Pacific Northwest National Laboratory has established a new adjunct organization to coordinate nuclear nonproliferation programs, research, and policy work in the region. The center aims to promote collaboration among stakeholders for proliferation prevention and arms control policy.

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.

Routine Activities May Stress The Hearts Of People With Heart Disease

A new study suggests that even moderate physical exertions can lead to dangerous shortages in blood supply to the heart, increasing the risk of a heart attack. The research found that routine daily activities such as driving, housework, and yard work can trigger ischemia, a condition characterized by a sudden stoppage of blood flow.

This Week's Forecast May Be A Heart Attack

A study suggests that changes in temperature and atmospheric pressure may increase the risk of heart attack in men. Research found a significant association between extreme weather conditions and fatal and nonfatal heart attacks, particularly among those with previous heart attacks.

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.

The Selling Of Olestra

Marion Nestle reviews the history of olestra's approval, highlighting the FDA's decision to approve the fat substitute while requiring warning labels. She calls for changes in the regulatory system to move towards alliances with industries, increasing FDA research authority and funding.

Quicker Implementation Of Research Results

Eleven German research centers are extending their funding by two years, totaling over DM 30 million, to develop innovative biomolecular recognition systems, biomedicine applications, and industrial solutions. This initiative supports the technology transfer from universities to regional companies.

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.

ASU Geology Team Collects Europa Data

The ASU geology team is collecting and analyzing data from the Galileo spacecraft, which shows strong evidence of a liquid ocean under Europa's surface. The images transmitted by the spacecraft reveal terrain types similar to an iceberg found on Earth near Europa's surface.

Study Reveals Possible Link Between Osteoarthritis, Diet

A University of North Carolina at Chapel Hill study suggests that consuming vitamin E and other antioxidants may help reduce the risk of knee arthritis. Middle-aged and older individuals who follow a diet rich in these compounds, such as green vegetables and tomatoes, may experience a 30% lower risk of developing osteoarthritis.

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.

Major Changes In How American Children Spend Their Time

According to the study, American children now spend less than an hour per week reading and almost no time engaging in unstructured outdoor play. Meanwhile, TV viewing has become a significant part of their daily routine, with nearly a quarter of their free time spent watching television.