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Science News Archive 2005


Page 46 of 165

Poor health literacy associated with poorer physical and mental health

A study found that nearly half of US adults have inadequate health literacy, which is associated with chronic conditions such as high blood pressure and diabetes. Individuals with low health literacy were more likely to report activity limitations and pain interfering with daily activities.

Fluke 87V Industrial Digital Multimeter

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

Room-temperature transistor laser is step closer to commercialization

Researchers at University of Illinois have successfully demonstrated room-temperature operation of a light-emitting transistor laser, paving the way for high-speed applications. The breakthrough could lead to faster signal processing, large capacity seamless communications, and improved electrical and optical integrated circuits.

Study identifies gene in mice that may control risk-taking behavior in humans

A study at Fred Hutchinson Cancer Center identified the neuroD2 gene as a potential controller of risk-taking behavior and emotional memory in humans. Mice with one copy of the gene showed impaired ability to form emotional memories and conditioned fear, similar to humans who have varying levels of risk-taking tendencies.

Work absence after breast cancer diagnosis: A population-based study

A population-based study found that women with breast cancer are more likely to be absent from work for 4 weeks or more compared to healthy women. However, by the third year, work absence patterns become similar. The study also reveals factors that modulate work absence, such as stable relationships and self-employment.

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.

A slight difference and significant similarities

A study compared genetically modified Desirée potatoes with five conventional varieties, revealing a surprising range of variation in substance content. The analyses found that the genetically modified lines exhibited similar variation to the conventional varieties, except for higher inulin polysaccharide content.

Family history alone can imply cancer mutation risk

A study found that a thorough family history is an effective measure for cancer risk, with 20% of women with breast or ovarian cancer having a high risk of BRCA1/BRCA2 mutations. Women of Ashkenazi ancestry were more likely to have high-risk family histories than those of non-Ashkenazi ancestry.

Loss of body mass linked to development of Alzheimer's disease

A study published in Neurology found that people who lost approximately one unit of BMI per year had a 35% greater risk of developing Alzheimer's disease. The researchers also found a similar relationship between changes in BMI and rate of cognitive decline, which is the clinical hallmark of AD.

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.

Potential new treatment for insulin-dependent diabetes

Researchers have identified a potential new treatment for insulin-dependent diabetes by targeting natural killer T cells. The study shows that multiple doses of alpha-galactosylceramide can reduce the production of interferon-gamma, which helps destroy transplanted islet cells.

Post-stroke tests not used often enough, especially in women

A study of 1,234 stroke patients found that heart and neck scans were less commonly used in women than men, despite being crucial for preventing second strokes. Women were 36% less likely to receive an echo-cardiogram and 43% less likely to have carotid artery exams.

How a zebra lost its stripes: Rapid evolution of the quagga

A study published by Yale University scientists analyzed the genetics of quagga and plains zebra populations to understand how the quagga evolved its distinctive stripes. The research found that the quagga diverged from Plains zebra around 120,000-290,000 years ago during the Ice Age.

Purdue method will help industry design parts-search systems

The Purdue method enables companies to reuse previous designs, reducing redundancy and streamlining supply chains. The system uses a benchmarking database and process to evaluate search performance, allowing users to fine-tune their searches by changing the sketch.

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.

A novel method to measure circadian cycles

Scientists have developed a novel method to measure circadian cycles in human cells, finding large differences between individuals' rhythms. The study used skin samples infected with a fluorescent virus to track circadian gene expression, confirming the human circadian cycle length of 24.5 hours.

USU students awarded fellowships

USU students Robert Anthony, Xialong Jiang, and Erika Lamb have been awarded fellowships by the Henry M. Jackson Foundation to study immune response and posttraumatic stress disorder in a neurobiological model. Their research aims to develop effective ways to combat these conditions in military service members.

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.

Statins use associated with lower risk of fractures

A significant association was observed between statin use and reduced fracture risk in a large cohort of mostly male veterans. The study, published in the Journal of the American Medical Association (JAMA), found that statins reduced fracture risk by 36% compared to no lipid-lowering therapy.

Temperature regulates circadian clock in zebrafish

Researchers found that daily temperature cycles can reset zebrafish clocks, triggering changes in specific clock genes. This discovery sheds light on how temperature affects biological systems and may have implications for mammals.

The economics of prescription drugs versus OTC

In Canada, delisting prescription drugs from public health insurance programs transfers costs to private citizens or private health insurance plans, generating cost-savings for governments. Deregulation may also benefit pharmacists by increasing over-the-counter sales and expanding their clinical role.

Apple iPhone 17 Pro

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

Human beta-cell line offers hope for type 1 diabetes breakthrough

A new method to create a reversibly immortalized beta-cell line offers significant progress in developing an effective treatment for type 1 diabetes. The breakthrough, achieved by manipulating human beta-cells, has successfully controlled blood sugar levels in diabetic mice for over 30 weeks.

Defect in gene causes 'neuralgic amyotrophy'

Hereditary Neuralgic Amyotrophy is characterized by repeated attacks of pain and paralysis in the affected area, often accompanied by facial features. Researchers have identified a genetic defect in the Septin 9 protein as the underlying cause of the disorder.

'Healthy weight, healthy shape' key in preventing heart disease

The European Society of Cardiology emphasizes the importance of healthy weight and exercise in preventing heart disease. Studies show that moderate physical activity can reduce the risk of cardiovascular events, while a balanced diet and weight management can also help mitigate the impact of existing heart conditions.

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.

Supportive spouse may reduce effect of job strain on blood pressure

A Canadian study found that job strain increases systolic blood pressure by 2.8 mmHg, while high marital cohesion in the presence of job strain decreases it by 2.5 mmHg over a year. The study suggests people with high job strain and low marital cohesion should see their doctor for a blood pressure check.

Lead exposure plus high blood pressure may impair mental ability

Researchers found an inverse relationship between mental tests and adverse effects of lead exposure and high blood pressure on cognitive performance. Lead exposure early in life combined with high blood pressure in working age adults may lead to diminishing cognitive abilities in later life.

Immigrants, Aboriginals needed to help educate about TB

A three-year study found that people with knowledge of TB had better experiences with the disease, suggesting a need for community awareness efforts. Employing recovered patients, family members, and lay health communicators could help foster awareness and improve prevention.

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.

Mayo Clinic boosts immune system

Researchers at Mayo Clinic discovered that antiretroviral therapy (ART) can dramatically increase the production of disease-fighting T cells in non-HIV-infected individuals, including older adults. This finding has significant implications for developing new cancer vaccines and improving immune protection in vulnerable populations.

Homing in on blood pressure genes may lead to targeted therapy

Researchers have identified a genetic region on chromosome 2 that appears to be involved in causing high blood pressure in people who do not respond to ACE inhibitors and beta blockers. This discovery brings hope for developing targeted therapies for patients with uncontrolled high blood pressure.

NIST atomic fountain clock gets much better with time

The NIST-F1 clock has been improved to measure time and frequency with unprecedented accuracy, recording an uncertainty of 0.53 × 10-15 seconds per measurement. This achievement is attributed to advancements in laser technology, atomic vapor management, and magnetic field control.

Meta Quest 3 512GB

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

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.

Cell signaling discovery yields heart disease clues

A study by John Scott found that the mAKAP signaling system is perturbed in cases of heart disease, leading to cardiomyocyte hypertrophy. Researchers have identified a potential therapeutic target for treating this condition by suppressing the enzyme phosphodiesterase with drugs such as growth hormone.

Study to examine the effects of synthetic steroids

A study examines how prenatal exposure to synthetic steroids affects the development of kidneys and regulation of blood pressure in adolescents. The research aims to identify potential causes of high blood pressure, diabetes, and weight gain in prematurely born children.

Nanowires can detect molecular signs of cancer, scientists find

Scientists have developed nanowire arrays that can detect multiple cancer markers with near-perfect selectivity. These devices can test a mere pinprick of blood in minutes, providing immediate scans and potentially tracking patients' health as treatment progresses.

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.

Mechanism regulating tooth shape formulation found

A recent study by researchers at the University of Helsinki has identified a key gene called ectodin that regulates tooth shape formation. The team found that mice lacking functional ectodin have abnormal teeth with broader cusps and extra teeth, highlighting the importance of ectodin in maintaining tooth development.

Marine bacterium suspected to play role in global carbon and nitrogen cycles

Scientists successfully cultivated a marine bacterium, N. maritimus, which is believed to play a significant role in the global carbon and nitrogen cycles. This breakthrough, supported by the National Science Foundation, provides new insights into the mechanisms of this microorganism and its relationship with other microbes.

Troubling trends converge

Researchers report a disturbing convergence of drug-resistant bacteria and virulent new strains of Staph. aureus, leading to severe illness and death in previously healthy children. The study highlights the need for better treatments and a vaccine to combat this growing threat.

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.

JCI table of contents October 1, 2005

Scientists discovered that interleukin-6 increases in TM patients' cerebrospinal fluid and is linked to tissue injury. Arsenic trioxide inhibits nuclear receptor function via SEK1/JNK-mediated RXR phosphorylation. Epithelial myosin light chain kinase-dependent barrier dysfunction mediates T cell activation-induced diarrhea.

Researcher finds new use for botox

Dr Frederic Meunier's research explores how powerful nerve toxins like Botox selectively dissect basic nerve cell processes, leading to a novel angle in understanding neuronal diseases like Parkinson's and Alzheimer's. He has also discovered that Botox-intoxicated nerve cells can recover by emitting little sprouts.

'Noise' affects how brain directs body to move

A new study found that brain noise limits both motor control and perception in common movements. Researchers analyzed neural activity and smooth pursuit eye movements to understand how the brain processes sensory inputs and executes decisions.

A cytokine not kind to an injury of the spine

Researchers at Johns Hopkins found elevated IL-6 levels correlate with tissue injury and clinical disability in Transverse Myelitis (TM) patients. Elevated IL-6 levels are necessary and sufficient to mediate neural injury, dependent on nitric oxide.

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.

Deep sea buffet for bone-devouring worms

Researchers discovered a unique partnership between Osedax worms and their symbiotic bacteria, allowing them to turn over large amounts of organic carbon at an accelerated rate. This process can potentially aid understanding of adaptation between animals and microbes.

Tissue stiffness drives tumor formation

Tissue stiffness influences cell growth and changes in function by modulating cell contractility, leading to the activation of key growth signaling pathways and increase in cell tension. This study highlights the importance of mechanical forces in tumor development and could lead to the development of new tumor therapies or targets.

NASA technology monitors wildlife habitats from the air

Airborne LiDAR technology has been successfully used to monitor and protect rare species such as California spotted owls and Delmarva fox squirrels. The system provides detailed measurements of forest canopy, tree height and biomass, enabling researchers to identify suitable habitats for endangered species.