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Science News Archive 2008


Page 87 of 240

BUSM researchers observes asymptomatic carotid plaque healing mechanisms

Researchers at Boston University School of Medicine have observed a non-invasive MR imaging healing mechanism for asymptomatic carotid plaque rupture. The study, published in Circulation, shows that not all plaque ruptures are symptomatic and highlights the importance of monitoring vulnerable plaques.

Robotic navigation systems in electrophysiology

Robotic navigation systems, such as Sensei and Niobe, enhance catheter-based procedures by minimizing fluoroscopy times and radiation exposure. These systems have shown promising results in isolating pulmonary vein antra and ablation of atrial arrhythmias.

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.

Survey: 'Tanorexia' common among university students

A study by Fox Chase Cancer Center found 27% of college students exhibit symptoms of tanning dependence, similar to substance addictions. Thinness and cigarette smoking are linked to higher rates of tanning dependence, suggesting potential avenues for prevention.

Risks and benefits of antipsychotics in children and adolescents

Antipsychotics have shown efficacy in treating psychotic disorders and other conditions in children and adolescents, but concerns about metabolic side effects and long-term safety remain. Studies have found increased risk of weight gain, dyslipidemia, and hyperglycaemia with certain antipsychotics.

Meta Quest 3 512GB

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

PET scans help identify mechanism underlying seasonal mood changes

Researchers found that serotonin transporter binding potential values were higher in fall and winter, suggesting a link between lower serotonin levels and seasonal mood changes. The study suggests that variations in brain serotonin levels may explain why people feel happier on sunny days and more sluggish during the dark winter season.

Transapical aortic valve implantation

The transapical aortic valve implantation (TA-AVI) technique offers a direct and antegrade approach to the aortic valve, minimizing manipulation in the aortic arch and reducing stroke risk. This method is performed as an off-pump procedure, utilizing high-quality imaging and fluoroscopic visualization.

Intima media thickness of the carotid artery

The carotid artery's intima-media thickness (IMT) is a valuable research tool that can predict cardiovascular events. Measuring IMT using non-invasive ultrasound allows for monitoring over time and assessing the impact of risk factor interventions.

Embargoed clinical news from Annals of Internal Medicine

Recent trials show intermittent HIV treatment increases risk of infections and death. A large-scale survey links 'burnout' to suicidal thoughts in med students, but finds it reversible. Whistleblower-initiated legal action against Medicare fraud has increased significantly since the 1990s.

Apple iPhone 17 Pro

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

Playing, and even watching, sports improves brain function

Research at the University of Chicago shows that playing sports or watching them improves language skills for discussing their sport. The brain's motor areas are activated when listening to conversations about a sport, even if there's no intention to act.

Family therapy helps relieve depression symptoms in bipolar teens

A study published in Archives of General Psychiatry found that family-focused therapy, combined with medication, significantly reduces depressive symptoms in adolescents with bipolar disorder. The treatment was shown to lead to faster recovery from depressive episodes and improved quality of life.

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.

Issues on cholesterol: Diet, statins and genetics

Research highlights the importance of diet, statins, and genetic factors in cholesterol regulation and cardiovascular health. Studies have shown that low HDL-C levels are strongly associated with an increased risk of CAD, and genetic mutations can affect HDL-C production.

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.

How often do hip and knee replacements need revision?

A comprehensive study of hip and knee replacement surgeries in England found that one in seventy-five patients require revision after three years. The research suggests that different patterns may emerge over a longer follow-up period, emphasizing the need for further research to evaluate surgical procedures and types of implants.

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.

World Cancer Declaration sets ambitious targets for 2020

The World Cancer Declaration aims to tackle the growing cancer crisis in developing countries with 11 cancer-busting targets for 2020. The plan focuses on significant drops in tobacco consumption, obesity and alcohol intake, as well as universal vaccination programs and proper pain medication.

Wolves would rather eat salmon

New research reveals that wolves prioritize seafood, specifically salmon, over deer when available. The study shows that wolves reduce deer hunting activity and focus on fishing during autumn when salmon is abundant.

Children of older fathers more likely to have bipolar disorder

A recent study found that children born to older fathers are at higher risk of developing bipolar disorder. The study, which analyzed data from over 13,000 patients with bipolar disorder, suggests that advancing paternal age may be associated with an increased risk of complex neurodevelopmental disorders.

Value of direct-to-consumer drug advertising oversold, study finds

A Harvard Medical School study found that direct-to-consumer advertising has a modest effect on prescription rates for some drugs, but none at all for others. The researchers compared sales of three specific drugs in English-speaking Canada and Quebec, where residents were less exposed to ads, and found no significant difference in pre...

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.

Bowling alone because the team got downsized

A new study by UCLA sociologists found that even a single job displacement has a lasting impact on workers' inclination to volunteer and participate in various social and community groups. Workers who experienced involuntary displacement were 35% less likely to be involved in their communities than those who never experienced a job loss.

Best use of drug-eluting stents

Drug-eluting stents should be avoided in patients with diabetes, short lesions, or large vessel sizes due to high restenosis risk. Extended dual antiplatelet therapy also poses bleeding complications, making bare metal stents a safer option for some patients

DES: New elements in the debate

Recent studies on DES have shown mixed results, with some suggesting increased risk of late thrombosis but no impact on mortality or myocardial infarction. However, other data indicate benefits in terms of reduced reinterventions and improved outcomes for high-risk patients.

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.

The TRANSCEND study

The TRANSCEND study found that telmisartan modestly reduced the outcome of cardiovascular death, heart attack, stroke, and hospitalization for heart failure. Additionally, fewer patients receiving telmisartan were hospitalized for any cardiovascular reason compared to placebo.

Researchers locate geographic origins from DNA

A study published in Nature describes the use of DNA analysis to pinpoint the geographic origins of individuals from a sample of Europeans. The research revealed striking genetic maps of Europe, allowing for precise classification of individuals by region.

Who needs surgery?

Recent guidelines reject CABG as initial treatment strategy for most patients with multi-vessel disease, despite evidence suggesting otherwise. A multidisciplinary approach involving a surgeon is recommended to ensure patients receive balanced advice.

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.

The ECNP consensus statement on bipolar depression

The ECNP consensus statement on bipolar depression highlights the disease's significant impact on functioning, social relationships, and employment. Early onset of bipolar disorder is associated with a severe burden of disease, particularly during acute depressive episodes.

DES in diabetic patients

Diabetic patients face accelerated atherosclerosis, increased risk of restenosis and late mortality when undergoing PCI. DES has been associated with mortality benefit in patients with multivessel disease, but results are mixed for diabetic patients.

The BEAUTIFUL study

The BEAUTIFUL study shows ivabradine significantly reduces hospitalization for fatal and non-fatal myocardial infarction by 36% and coronary revascularisation by 30% in high-heart-rate patients. Ivabradine is safe and well-tolerated, even when used with other cardiovascular drugs.

Genetic testing?

Genetic testing has significantly improved the detection of individuals at risk for sudden cardiac death in athletes. This technology enables informed decision-making regarding care and training continuation among athletes. However, its use in asymptomatic genetic carriers with normal phenotypes is a topic of controversy.

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.

New genes found for inflammatory bowel disease in children

Researchers have discovered two new genes that increase the risk of developing childhood inflammatory bowel disease. The study found a compelling candidate, TNFRSF6B, which is involved in tumor necrosis factor signaling and may provide a target for drug development.

Computed tomography provides anatomy -- we need ischemia!

Cardiac computed tomography (CTA) is reliable for excluding coronary artery disease but lacks hemodynamic relevance and poses radiation risks. Fundamental insights into CAD suggest a graded prognosis according to ischemia severity, making revascularization unnecessary in some cases.

Cardiac imaging in 2020

Recent advancements in cardiac imaging have led to the detection of impairments in cellular processes that precede changes in morphology and function. These early stages can be identified through various imaging techniques such as PET, nuclear imaging, MRI, ultrasound, and optical imaging.

Cardiac ultrasound imaging goes to handheld

The introduction of handheld echocardiography machines promises to revolutionize cardiac diagnosis and treatment. These portable devices will enable doctors to quickly assess heart valves and pumping power, potentially saving lives in emergency situations.

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.

The future of non-invasive cardiac imaging

The field of non-invasive cardiac imaging has evolved significantly, with various techniques such as echocardiography, cardiovascular magnetic resonance, and computed tomography available. However, clinicians face challenges in choosing the most suitable modality due to a plethora of options.

LEADERS (Limus Eluted from A Durable versus ERodable Stent coating)

The LEADERS study found that a biolimus-eluting stent with a biodegradable polymer is as safe and effective as a sirolimus-eluting stent with a durable polymer, reducing the risk of restenosis. The results suggest that this new generation of drug-eluting stents may offer improved long-term safety and effectiveness.

Sex hormones link to heart risk

A new study led by the University of Leicester found that men's sex hormones, particularly estradiol and estrone, are associated with increased cardiovascular risk factors such as high total cholesterol and LDL-cholesterol. This suggests that natural endogenous estrogens may play a role in increasing heart disease risk in men.

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.

Neurogenesis in the adult brain: The association with stress and depression

The adult brain's capacity for neurogenesis is closely tied to stress and depression, with research showing that chronic stress can inhibit new cell growth in the hippocampus. However, antidepressant treatment has been shown to stimulate neurogenesis, suggesting a potential therapeutic target for treating major depressive disorders.

Landmark study opens door to new cancer, aging treatments

Researchers at The Wistar Institute have deciphered the structure of telomerase, an enzyme playing a major role in nearly all human cancers. This achievement paves the way for new cancer treatments and anti-aging therapies by understanding how to deactivate telomerase.

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.

Positive exercise testing in athletes: What does that mean?

A positive exercise test indicates an increased risk of cardiac events, especially in athletes with underlying coronary artery disease. The test is crucial for evaluating high-risk athletes over 35 years old and those with known cardiac abnormalities.

New sensory devices will aid Parkinson's and stroke patients

Researchers at Queen's University Belfast are developing new sensory devices to help people with Parkinson's disease and stroke patients control their movements. The devices will provide sensory information through eyes, ears, or touch, allowing the brain to learn to guide movements in a more controlled way.

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.

Ice Age lesson predicts a faster rise in sea level

Researchers estimate global sea level rise could be double or triple current predictions over the next century, with possible rises of up to a third of an inch per year. The study uses lessons learned from the demise of the last great North American ice sheet to inform its findings.