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Science News Archive 1999


Page 46 of 54

Bees: Latest Weapon In Cancer Fight

Scientists are modifying bee venom to develop cancer treatments with fewer side effects than traditional drugs. The goal is to create immunotoxins that target cancer cells specifically, overcoming major drawbacks of chemotherapy.

Heart Disease Symptoms Worsen When Body Tries To Adapt

A Johns Hopkins-led study shows that many heart disease features are better explained by the body's responses to genetic damage rather than the damage itself. The research used a miniaturized catheter to compare healthy and diseased mouse hearts, revealing evolving adaptations that worsen symptoms over time.

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.

Scientists Study Protein's Role In Tumor Development In Fish

Researchers at Ohio University have discovered a unique retrovirus linked to skin tumors in walleye, which shares similarities with human cyclin D1. The study reveals that the presence of a specific mRNA precedes protein production, potentially leading to tumor cell death.

Salmon Syndrome M74: Cause Still A Mystery

Researchers found no link between M74 and environmental pollutants, but suspect complex interacting factors in the Baltic Sea. Precautionary treatment with Vitamin B1 reduces mortality in salmon hatcheries.

Dominant Persons Set Cardiovascular Rates Surging

Researchers found that dominant men and women exhibit high cardiovascular reactivity when interacting with others, responding to gender norms. In mixed-gender situations, dominant women deactive their traits, while dominant men respond to male gender role norms.

Heavy Traffic At The Nuclear Pore: How Proteins And RNA Leave The Cell Nucleus

The nuclear pore complex is a highly regulated structure composed of around 50-100 different proteins that control the transport of macromolecules between the nucleus and cytoplasm. Ran protein plays a crucial role in this process, binding selectively to transport factors to regulate cargo molecules across the nuclear pore.

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.

Program Prevents Delirium In Hospital Patients

A multidisciplinary team of specialists reduced episodes of delirium by 9.9% compared to standard hospital care, with benefits also seen in improved cognition, mobility, and hearing. The program targeted risk factors such as cognitive impairment, sleep deprivation, and immobility.

1998 Was Warmest Year Of Millenium, Climate Researchers Report

Researchers found that the 20th century warming counters a 1,000-year-long cooling trend and reversed a medieval warming period. Temperatures in the latter half of the 20th century were unprecedented, with human-induced greenhouse gases being a major factor.

Control That Computer With A Wave Of Your Hand

MIT researchers have created a sensory tabletop that can track hand movements in three dimensions, allowing for new interactive technologies. The table uses electrodes to detect tiny currents generated by the user's hand, which are then used to calculate the hand's position in 3D space.

Researchers Obtain Clearest View Of Nearby Galaxy's Core

Astronomers have obtained the clearest view yet of the center of the Andromeda galaxy, revealing a double nucleus that has long puzzled scientists. The study uses new Hubble images to map the orbital motions of stars around the black hole at the galaxy's core.

Apple iPhone 17 Pro

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

Breakthrough? Study Finds Dopamine Cannot Be Source Of Pleasure In Brain

A University of North Carolina at Chapel Hill study reveals that dopamine plays an early central role in pleasure but another chemical like serotonin is actually responsible for the sensation. Researchers believe this discovery could lead to better explanations for substance abuse and addiction, as well as new treatments.

Genetic Mutations Linked To Rare Metabolic Disease

Researchers have identified two genetic mutations as the cause of megaloblastic anemia 1, a rare disease affecting vitamin B-12 absorption. The disease is exceedingly rare, occurring in only one person in a million, but can be fatal if left untreated.

Transmitters May Give Off-Piste Skiers A False Sense Of Security

Recent studies indicate that electronic transmitters used by off-piste skiers to locate buried victims are ineffective due to limited range and prolonged rescue times. The signals only carry up to 50 meters and professional skiers take an average of 18 minutes to reach their companions, resulting in a low survival rate.

Wistar Institute To Host Symposium On Regeneration In The 21st Century

The Wistar Institute hosted a symposium on regenerative biology, featuring experts discussing recent advances in understanding regeneration in metazoans, stem cells, and nervous systems. Key findings included insights into limb regeneration, spinal cord repair, and muscle cell replacement.

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.

Geologists Find Motion Across Disappearing Plate Boundary

Researchers have discovered motion along the southern portion of the boundary between the west African (Nubian) and east African (Somalian) plates. The finding helps geologists understand how the East African rift fits into plate tectonics, improving global models for predicting India-Eurasia collision.

Survey Shows Actuaries' Views On Social Security Reforms

The survey shows strong support for indexing the retirement age to increases in life expectancy. However, actuaries opposed individual accounts and favored limiting investment choices if enacted. Most respondents disagreed with adjusting benefits based on retiree-to-worker ratio.

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.

Better Binding Through Chemistry

Researchers at HHMI and Stanford University have developed a new method to engineer drug molecules that bind more effectively to their targets. By attaching small molecule inhibitors to larger proteins, the team increased the binding affinity of the inhibitor, making it easier to inhibit protein-protein interactions.

Degrading Plastics To Reduce Waste

A new type of degradable polyethene, SPI-TEK, breaks down in five years and allows other organic materials to decompose, increasing landfill site capacity. Bayer is also testing a new 100% degradable polyester suitable for industrial production in agriculture and food sectors.

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.

Interleukin-2 Boosts Cancer Vaccine Effectiveness In Mice

A University of Michigan cancer vaccine combination with interleukin-2 was found to be effective in mobilizing the immune system to attack and destroy malignant cells. Eighty percent of mice showed complete regression of their tumors after treatment.

Plastics - Easier To Recycle Than Commonly Thought

Researchers found that contaminants can have very little impact on the physical properties of plastics, allowing for more functional products to be made from recycled materials. This could increase production of recycled plastic products like car bumpers and street furniture.

Ultra-Thin Steels Reducing Fuel Needs

The new high-strength, ultra-thin steels are being tested for endurance on life-size testing rigs to simulate 40,000km of rocky road driving. The materials range in thickness from 0.7 to 2 mm and have improved fatigue properties.

Fluke 87V Industrial Digital Multimeter

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

A Little Volunteering Can Prolong Your Life

A University of Michigan study found that seniors who volunteer for less than an hour a week are more likely to live longer. The study analyzed data from 1,211 older adults and discovered that volunteering is directly associated with increased survival rates, rather than just being a result of better health.

Common Prostate Cancer: A Different Process Altogether?

A study by Johns Hopkins Medicine reveals that nearly 90% of prostate cancers are linked to a common genetic process called 'gene switching,' which can be reversed with drugs. This finding has the potential to correct one of the most common cancers in men without using typical gene therapy.

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.

Fermilab Physicists Find New Matter-Antimatter Asymmetry

Physicists at Fermilab's KTeV experiment report a large and unexpected direct CP violation, ruling out the Superweak Theory. The finding exceeds previous expectations, raising questions about its accommodation within the Standard Model.

Susceptibility Genes For Nicotine Addiction

A genome scan identified regions on chromosomes 2, 4, 10, 16, 17 and 18 that may contain genes influencing nicotine dependence. The study used two independent samples, with limited replication in several regions suggesting further investigation is warranted.

Exhaust System Reduces Auto Emissions, Boosts Engine Performance

A new automobile exhaust system reduces pollution and boosts engine power at the same time. The design increases overall engine performance by 5 percent while also cutting emissions by 15 percent, making it a significant improvement over standard auto exhaust assemblies.

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.

Low Folate Levels In African American And Mexican American Adults

African American and Mexican American adults have lower serum and red cell folates compared to white adults. This disparity underscores the importance of improving dietary habits and folate supplements among these populations. Lower folate levels are a risk factor for neural tube defects in offspring and potentially other diseases.

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.

Building A Better Plasma Trap

U.C. San Diego researchers successfully trapped non-neutral plasma using a combination of electric and magnetic fields, forming novel vortex crystals when cooled. This breakthrough may hold the key to creating anti-hydrogen, quantum computing, and advanced atomic clocks.

Obese Black Teens At High Risk For Diabetes, Study Suggests

A recent study by Ohio State University researchers found that obese Black teenagers have a significantly higher risk of developing type II diabetes as adults compared to their white counterparts. The study highlights the need for early aggressive weight management in Black teens, given racial and ethnic differences in glucose metabolism.

Superconductor "Sees" Longer Wavelengths

A new superconducting device detects single light quanta at wavelengths longer than previously possible, detecting 25 billion photons per second. The device is capable of detecting changes in light level and has small size, making it a candidate for a superconducting computer input component.

The Gravity Of The Matter

The new gradiometer has the potential to revolutionize submarine navigation and underground structure detection, offering improved accuracy and reduced costs. Its commercial applications include geophysical mineral exploration and archaeological studies, enhancing our understanding of hidden pathways and structures.

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.

Study Links Abnormal Pain Syndrome To Nerve Cell Changes

Researchers at UNC Chapel Hill discovered molecular changes in nerve cells that may play a role in causalgia, a painful medical syndrome. The study found that nerve fibers affected by injury become supersensitive to norepinephrine, leading to persistent burning pain.

Alzheimer's Disease Begins Before Symptoms Appear

Researchers found that changes in the brain characteristic of Alzheimer's disease begin years before clinical symptoms like memory loss. The study used brain tissue from over 60 subjects, including healthy individuals and those with dementia, to identify amyloid plaques and neurofibrillary tangles.

Do You Hear What I Hear?

The Office of Naval Research has developed proprietary technology to improve hearing protection devices for service personnel exposed to high-level noise. The composite material absorbs acoustical energy more effectively, resulting in better-fitting and more effective ear-protection devices.

Modeling Atmospheric Aerosols

Scientists from around the world collaborated to develop improved atmospheric aerosol models for predicting infrared propagation in coastal environments. The project aims to enhance sensor accuracy for detecting incoming threats such as missiles and submarine periscopes.

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.

Increased Arctic Temperatures Could Speed Up Global Warming

New research suggests that increased Arctic temperatures due to global warming can lead to higher levels of carbon dioxide emissions, fueling global warming further. The study found that artificially elevating summer temperatures in arctic tundra resulted in significant losses of carbon dioxide from the soil.

Adolescent Girls Give Parents More Help And Affection Than Boys

A study of 129 children and their parents found that adolescent girls are more helpful and affectionate towards their parents. The quality of the parent-child relationship plays a significant role in determining the level of affection and helpfulness displayed by adolescents.

Detecting Deadly Land Mines

The Office of Naval Research has developed a system that uses complex mathematical steps to filter out unwanted material in surveillance images and locate land mines. This new technology can find above-ground mines in an aerial picture in less than a minute, producing results superior to existing systems.

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.

Health Benefits Of Fitness

A large study found that cardiorespiratory fitness was associated with a lower risk of death from all causes, regardless of body fatness. The researchers suggest that fitness may be more important than being lean for reducing obesity and mortality risk.

Dental Care And Family Income

African Americans are less likely to visit the dentist for routine visits due to lack of money and dental insurance. The study found that 13% of African Americans had never visited a dentist, compared to 1% of whites.