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Science News Archive October 2002


Page 9 of 10

Disabled seniors formerly on SSDI hit hardest by drug costs

A recent study by Penn State found that disabled seniors formerly on SSDI spend significantly more on prescription drugs than the rest of the Medicare population. The study discovered that nearly half of these seniors spent 10% or more of their income on medication, highlighting a pressing concern for this vulnerable population.

Study shows why some immune systems control HIV

Researchers found that long-term nonprogressors' cells were better able to divide and produce perforin, a molecule that helps kill off infected cells. This discovery is crucial for developing effective vaccines and therapeutic treatments that improve CD8+ T cell function.

Researchers create new strategy for removing arsenic from soil

Researchers created a new strategy to remove arsenic from soil by inserting genes from the common bacterium Escherichia coli into a member of the mustard family, Arabidopsis. This enables the plant to tolerate arsenic and transport it to its leaves in a form that is less biologically available.

Is there a link between soy formula and attention deficit disorder?

A study by University of California - Irvine researchers found that high manganese levels in soy milk formula may cause behavioral problems and lowered dopamine levels in infant rats, similar to those seen in ADHD. The study suggests a potential correlation between high manganese doses and attention deficit disorder.

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.

Job loss can lead to downward spiral of depression and poor health

Unemployment can start a vicious cycle of depression, loss of personal control, decreased emotional functioning, and poorer physical health. After re-employment, 71% of job seekers still reported negative effects, highlighting the need for mental health support to improve re-employment chances.

Tiny nerves from the ribs may restore leg movement in spinal cord injury

Researchers at the University of California, Irvine, have made a breakthrough in treating spinal cord injuries by using tiny nerves from the rib cage to partially restore hind leg movement. The study found that grafting these nerves and adding a growth stimulator, aFGF, can improve movement in rats with severed spinal cords.

'Virtual stomach' reveals pill's path

A virtual stomach simulation reveals how pills break down and release medication in the stomach, with key findings including three distinct zones and effects of buoyancy on mixing and drug release. The technology aims to improve extended-release tablet formulations and shed light on diseases involving stomach motility.

Scientists decode mosquito/malaria parasite genomes

International collaboration sequences mosquito genome, revealing gene functions and immune system adaptations that help understand why only a few species transmit human malaria. The findings provide a head start for researchers to develop new therapies against the disease.

Meta Quest 3 512GB

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

Astronomers slice and dice galaxies

The UKIRT's new UIST instrument allows astronomers to study galaxies in exquisite detail using infrared spectroscopy and imaging. The instrument's 'image slicer' feature enables the creation of detailed spectra across complex objects, revolutionizing observations at UKIRT.

Caregiving for spouse prompts women to retire earlier

A new study by Cornell University finds that women who care for spouses are more likely to retire earlier, while men who are caregivers delay their retirement. The study, which analyzed data from over 700 employees and retirees, highlights the significant impact of caregiving on retirement decisions.

Tourists, soothsayers & scientists try to predict peak Fall foliage color

A new study by University of Vermont scientists sheds light on what makes leaves turn red, finding that nutrient stress, particularly low nitrogen, can instigate early and more intense red color in maples. The research uses computer imaging technology to measure the percentage of color in each leaf throughout the seasonal cycle.

The lancet infectious diseases (TLID) October press release

Otitis media is a common childhood infection with rising antibiotic resistance; the Lancet Infectious Diseases review calls for targeted larval mosquito strategies. A systematic review of over 5000 women also finds that cheap spermicide gels are ineffective in reducing HIV-1 and other STIs.

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.

Rice bioengineers develop method to grow 3-D bone matrix

Researchers at Rice University have developed a technique to create a porous, 3D bony matrix similar to natural bone. The method uses flowing fluids to provide mechanical stimulation, resulting in thicker and more developed mineralized bone compared to static samples.

Low dose radiation research grants awarded

The projects will investigate low dose radiation effects on human cells, DNA repair, and respiratory cells. Funding is provided by the DOE Office of Science's Office of Biological and Environmental Research and NASA's Space Radiation Health Program.

MIT breast cancer heat treatment begins final clinical trials

A focused microwave heat therapy technique shows promise in killing tumor cells before surgery and radiation, with a majority of patients experiencing significant tumor kill. The technology was invented by MIT researchers and is being developed into a clinical thermotherapy system by Celsion Corporation.

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.

Opioids should be considered for relief of chronic lower back pain

The Mayo Clinic study highlights the effectiveness of opioids in relieving chronic lower back pain, despite controversy over misuse and potential drug dependence. The research emphasizes the need for careful patient selection and close monitoring to ensure safe treatment outcomes.

Smoking during adolescence could increase risk of breast cancer

Research suggests that smoking during adolescence increases the risk of breast cancer in women by 70%, particularly those who start smoking within five years of menarche. This is due to the sensitivity of human breast tissue to environmental carcinogens during periods of rapid cell proliferation, such as puberty.

Tackling sexual violence

Sexual violence is rooted in gender power inequalities and hierarchical relationships, with prevention efforts extending to health services, education, and social policies. Health professionals play a crucial role in supporting victims and promoting autonomy, bodily integrity, and self-esteem.

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.

Parasite, mosquito genomes complete malaria picture

The sequencing of both P. falciparum and its insect vector heralds a new era in the fight against malaria. This detailed map of the parasite's 5,300 genes will enable investigators to design targeted anti-malarial drugs.

Sequenced malaria genome exposes novel drug targets

The malaria parasite evolved from a plant-like organism that survived by photosynthesis, and its relict chloroplast contains genes associated with anti-malarial drug targets. At least 12 new drug targets have been identified, providing leads for safe herbicides and antibiotics.

Suction and pull drive movement of Earth's plates, U-M researchers show

Scientists at the University of Michigan have developed a model that explains how slabs in the Earth's mantle drive convection and surface plate motion. The research found that slabs attached to plates can directly pull them towards subduction zones, while those not well attached create suction forces drawing nearby plates towards the ...

Apple iPhone 17 Pro

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

Research reveals how an acid dissolves, molecule by molecule

A team of researchers led by A. Welford Castleman Jr. has discovered exactly how an acid compound dissolves molecule by molecule using water molecules as a solvent. The study found that the interaction of four surrounding water molecules with the hydrogen-bromide molecule tips the energy balance, triggering its eventual dissolution.

Researchers discover target for new anxiety-reducing drugs

Scientists at Oregon Health & Science University have identified a potential target for anxiety-reducing drugs that may be less addictive and have fewer side effects. The research found that mice lacking a certain enzyme exhibit reduced anxiety levels, providing insight into the mechanisms of stress creation.

Researchers successfully deliver drugs to the primate brainstem

Scientists successfully delivered a tracer molecule to the primate brainstem using CED, tracking its movement with MRI and demonstrating uniform concentrations throughout the perfused area. This breakthrough has potential to improve treatment outcomes for children with brainstem gliomas and other neurological diseases

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.

American Thoracic Society journal news tips for October (first issue)

A German study found exposure to house dust endotoxin is associated with lower allergic sensitization in school children. Researchers also discovered that females are more sensitive to coughing agents than males. Occupational exposure to dust and fumes is linked to increased respiratory symptoms and asthma risk.

Aspirin does not reduce effectiveness of ACE inhibitors

Researchers found that aspirin use did not decrease the effectiveness of ACE inhibitor therapy in patients. The combination of both treatments significantly reduced major vascular outcomes by 22%, producing substantial additional benefits for patients at high risk of events.

Researchers identify candidate vaccine for Sjögren syndrome

A team of researchers at the University of Toronto has identified a protein and developed a prototype vaccine that shows promise in treating Sjögren syndrome. The vaccine was able to stop disease progression even after the condition had fully developed.

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.

Chemical society's scholars program receives $100,000 boost from Procter & Gamble

The American Chemical Society's Scholars Program received a $100,000 boost from Procter & Gamble to emphasize the importance of diversity in the chemical sciences. The program supports academically accomplished African American, Hispanic and Native American students pursuing undergraduate studies in chemistry-related disciplines.

Nurse intervention helps cardiac patients manage cholesterol

A study by Johns Hopkins Medicine found that nurse case management significantly improves risk factor management in patients with coronary heart disease. The program led to healthier diet and exercise patterns, as well as higher achievement of recommended cholesterol levels, compared to minimal intervention.

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.

Texas A&M agriculturists set framework to safeguard food supply

The new assessment tool identifies critical nodes in agricultural production processes and assesses relative vulnerability to attacks. Local authorities will use the process to evaluate their capability to respond and identify needs for additional planning, training, and equipment.

HHS announces contracts for developing a new anthrax vaccine

The HHS has awarded contracts to Avecia and VaxGen Inc. to develop a new anthrax vaccine that can provide immunity in three or fewer doses, reducing administration time. The vaccine will be produced using recombinant DNA technology and is expected to protect individuals from anthrax spores even if administered shortly after exposure.

Rutgers lead partner in $12.3m NSF math and science education grant

Rutgers University is leading a $12.3 million NSF grant to improve math and science education in New Jersey schools, focusing on teacher recruitment, training, and performance. The project aims to increase achievement gaps and reduce disparities in STEM education for underrepresented students.

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.

Increased CO2 levels are mixed blessing for agriculture

A meta-analysis by Ohio State University researchers found that higher CO2 levels increase crop yields, but decrease the nutritional value of crops. While plants grown in high-CO2 conditions produce more seeds and individual seed weight, they contain less nitrogen.

Fred Hutchinson Research Center awarded $7 million grant

The Leukemia & Lymphoma Society has awarded a $7 million grant to Fred Hutchinson Cancer Center researchers to develop new, more tolerable and effective therapies for blood cancers. The project aims to harness the immune system to selectively target cancer cells using immune cells or antibodies armed with toxic agents.

The Lancet Oncology press release

The Lancet Oncology editorial discusses the EPA's 10-year report on diesel exhaust fumes' toxic effects, emphasizing public health implications. The article also reviews mathematical models identifying breast cancer risk factors and explores chemoprevention strategies.

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.

Doppler-guided fluid administration during surgery improves outcome

Researchers at Duke University Medical Center found that using Doppler technology to guide fluid administration during major surgery improves outcomes. Patients who received Doppler-guided care experienced shorter hospital stays, faster recovery, and less postoperative nausea and vomiting compared to those who received conventional care.

Purdue creates self-generating nanotubes with 'dial-up' properties

The Fenniri team has discovered a new class of nanotubes formed from synthetic organic molecules, enabling complete control over their formation and properties. These nanotubes can be customized to possess different physical and chemical properties, making them suitable for various industrial applications.

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.

Gene's role in malaria drug resistance proved

Researchers have identified a specific gene mutation that confers chloroquine resistance in Plasmodium falciparum malaria parasites, allowing scientists to develop targeted treatments, and also increasing susceptibility to artemisinin and quinine.

Database lets researchers worldwide access genome of malarial parasite

A new web-based database provides researchers with access to the Plasmodium genome, enabling them to examine chromosome organization, scan for genes and predict protein structures. The database aims to speed up research and discovery in malaria combat, leveraging global collaboration among diverse scientists.

Key sensory proteins unveiled in mosquito genome found by Illinois entomologist

Researchers have identified 276 G protein-coupled receptors in the Anopheles mosquito genome, including 155 external chemosensory receptors that allow female mosquitoes to detect humans and other mammals by taste or smell. The discovery provides a new approach to studying mosquitoes and reducing the spread of malaria and other diseases.

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.

Scientists decipher genetic code of malaria parasite

The Institute for Genomic Research has published a paper analyzing the genome of Plasmodium falciparum, a malaria parasite. The analysis identified about 200 genes producing proteins involved in immune evasion and revealed metabolic pathways, including enzymes that could be targeted by chemotherapy.

Mosquito genome sequence--Published in the journal Science

The newly-sequenced Anopheles gambiae genome holds promise for developing new insecticides, transmission-blocking vaccines, and mosquito repellants. Researchers identified genes involved in the mosquito's ability to host the malaria parasite and located targets for new insecticides.