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Science News Archive 2004


Page 95 of 135

Researchers begin study to protect against anthrax

Scientists are developing a new anthrax vaccine that requires fewer shots and has fewer side effects. The study aims to improve upon the existing vaccine, which causes numerous side effects and takes 18 months to confer protection.

Study finds lean beef can be part of healthy diet for teens

A study published in the Journal of the American Dietetic Association found that teens eating lean beef maintained higher levels of iron and lower LDL cholesterol. The researchers also aimed to establish healthy eating habits among young adults, as they are more likely to pass them down to their own children.

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.

Physicians have mixed opinions about consumer-targeted pharmaceutical ads

A survey of 642 physicians found that DTCA can lead to valuable discussions with patients, but also raises concerns about inappropriate prescriptions and unnecessary treatments. Physicians reported prescribing the advertised drug only 39% of the time, citing effectiveness or cost as reasons for not using it.

Study shows coenzyme Q10 may prevent migraine

A study of 42 people found that those taking CoQ10 had significantly fewer migraine attacks than those taking a placebo, with 48% experiencing half as many attacks. The only side effect reported was an allergic skin rash in one patient.

Apple iPhone 17 Pro

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

Dementia, sensory neuropathy in sub-Saharan HIV-positive patients

HIV-positive individuals in sub-Saharan Africa exhibit high rates of dementia (11%) and painful sensory neuropathy (51%), with those with low CD4 counts showing even more severe impairment. A rapid screening test may help identify these conditions in resource-limited settings.

Gene-based screen sorts cancer cases, say Stanford researchers

A new gene-based screen developed by Stanford researchers can accurately predict a person's response to treatment and identify patients who may benefit from novel therapies. The screen uses a technique called RT-PCR to analyze genes associated with cancer survival, offering a more accessible alternative to existing microarray technology.

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.

Chlamydia in men now also linked to infertility – new findings

Researchers found decreased pregnancy rates in couples where the man had IgG antibodies, a marker of previous or persistent infection by Chlamydia trachomatis. For those infertile couples with IgG antibodies, 6.8% of women and 7.1% of men carried Chlamydia DNA in their urine, suggesting active infection.

Researchers find evidence that sea turtles navigate with magnetic maps

A research team at the University of North Carolina at Chapel Hill has found evidence that sea turtles can read geographic position from subtle variations in the Earth's magnetic field. Older turtles use this ability to pinpoint their location relative to specific target areas, effectively having a biological equivalent of GPS.

New NASA technology helps forecasters in severe weather season

New NASA technology enhances NOAA's weather forecasts by integrating satellite data and lightning tracking, leading to more confident seven-day severe local storm forecasts. This improved prediction capability can also enhance tornado warning lead times and better predict thunderstorm occurrence.

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.

Bone implants could aid healing after tooth removal

Researchers at Rice University have developed a biodegradable implant that can release growth factors to stimulate bone growth in critical-size defects, aiding the body's natural regeneration process. This innovative approach aims to provide patients with their own tissue and eliminate risks associated with existing treatments.

Rare risk: Adolescent binging on marijuana linked to stroke

Researchers at Saint Louis University found a potential link between adolescent marijuana use and increased risk of cerebellar strokes. Dr. Thomas Geller's study revealed three cases of teenage boys who suffered strokes after consuming large doses of marijuana.

Student-built projectile could help soldiers detect bombs, chemicals

A team of University of Florida engineering students designed and built a crayon-sized sensor that can be fired from a paintball gun to detect explosives. The sensor was part of a government- and corporate-supported research program, and Lockheed Martin plans to refine and produce it for potential use in Iraq.

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.

UCLA chemists develop new coating for nanoscale probes

Researchers create peptide coatings that disguise particles, allowing them to track proteins in live cells. This technology enables molecular-level studies and has potential applications in biology, medicine, and electronics.

New research finds summer-born women have fewer children

A study of over 3,000 Austrian women found that those born between June and August had lower average numbers of live-born children compared to other months. This suggests a potential link between birth month and reproductive performance, with possible explanations including environmental factors and early developmental influences.

Severity of depressed mood affects stroke risk

A study of nearly 3,300 subjects found that any level of depressed mood was associated with a 40% higher risk for stroke among the entire cohort. In contrast, among white subjects, greater severity of symptoms more than doubled the risk of stroke.

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.

AGU journal highlights - 29 April 2004

Research papers in Geophysical Research Letters and Journal of Geophysical Research-Atmospheres have shed light on various atmospheric phenomena. Brown et al.'s study found near-equal rates of nitric acid formation during day and night, while Chatfield et al. attribute seasonal ozone density over the South Atlantic to pollution sources...

OHSU study: Rate of brain volume loss predicts dementia

Researchers found that the rate of total brain volume loss can predict which mildly cognitively impaired individuals are at high risk of developing dementia. Combining this with hippocampus volume measurements provides a strong model for predicting cognitive outcomes.

A conveyor belt for the nano-age

Researchers have developed a method to transport indium particles along carbon nanotubes using electrical current, enabling high-throughput assembly of nanostructures. This breakthrough could revolutionize the field of nanotechnology by allowing for efficient and precise delivery of atoms.

Untreated postmenopausal women with osteoporosis

A statistical model predicts rapid increase in spinal fractures over time if left untreated, highlighting the importance of intervention before first fracture occurs. The study emphasizes the need for therapy that reduces risk of first fracture within one year to substantially reduce future fracture risk.

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.

PET scanning promising in diagnosing cancer-related neurological disorders

A study of 32 patients with suspected paraneoplastic neurological disorders found that PET imaging successfully identified relevant lesions undetectable by alternative methods. The results suggest that PET is an appropriate and promising tool for patients with undiagnosed paraneoplastic neurological disorders.

BioTime awarded NIH grant to aid Hetacool® development

BioTime develops products for hypothermic surgery, aiming to increase surgical time and treat cardiovascular conditions. The company received an NIH grant to further research Hetacool, which could benefit patients undergoing complex surgeries and resuscitative procedures.

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.

Airport baggage screeners may need continuing education, study indicates

A study published in Psychological Science found that initial training for airport screeners is insufficient, highlighting the need for continuing education. The research showed that screeners improve at detecting specific weapons but struggle with transferable skills, leading to a higher risk of false identifications and missed targets.

Gene defect linked to premature aging

A study by Johns Hopkins Medicine found that a gene defect, PASG, is linked to premature aging in mice. The researchers discovered that the mutated gene causes cells to age and die prematurely, leading to growth problems and early death.

Language 'center' of brain shifts with age

Researchers found that language capacity 'evens out' with age, with older adults using more of both hemispheres relative to language skills. The study suggests improvements in linguistic skills and maturation of the central nervous system contribute to increased hemisphere dominance in childhood.

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.

Apraxia of speech in children is focus of new OHSU grant

A new grant from NIH will help create a diagnostic tool for childhood apraxia of speech, a neurologically based speech motor disorder affecting about one-tenth of 1 percent of US children. The tool will automate existing measurements and develop new ones to reduce human variability in diagnosis.

Medication for heart failure may be helpful addition to standard therapies

A recent study found that tolvaptan, a medication for heart failure, can increase net fluid loss and improve serum sodium levels in patients with hyponatremia. This effect was achieved without negatively impacting blood pressure or kidney function. The treatment may also reduce mortality rates in high-risk patients.

Dental X-rays of pregnant women associated with low-weight babies

A population-based case control study found a significant association between exposure to diagnostic radiography during routine dental care and low birth weights in full-term babies. The study suggests that radiation may affect neurohormonal mechanisms in the head and neck region, leading to potential health effects on pregnancies.

Nanogold does not glitter, but its future looks bright

Researchers at Lehigh University are exploring the properties of nanogold, creating nanoparticles with defined shapes and sizes to exhibit distinct properties. They can tailor these properties by varying particle size and elemental composition.

Fluke 87V Industrial Digital Multimeter

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

NSF awards $500,000 to Kansas State University chemist

Kansas State University will develop a 'green' chemistry course with a $500,000 NSF grant. The course aims to educate students on environmentally friendly chemical processes and develop chiral molecules critical for biologically active compounds like pharmaceuticals.

Surgery for treatment of temporal lobe epilepsy varies among ethnic groups

Surgery for medically intractable temporal lobe epilepsy shows variation among ethnic groups, with African Americans receiving surgery at significantly lower rates than non-Hispanic whites. The study suggests that racial disparities exist but do not appear to be related to differences in access to care.

Illegal drug use causes painful complications for oncology patients

The article highlights the complexities of managing cancer pain in patients with a history of addiction, emphasizing the need for multidisciplinary care teams. The Pain Management Center at Fox Chase Cancer Center offers innovative strategies, including patient contracts and collaboration between nurses and physicians.

PNNL on fast track for hydrogen fuel reformer

PNNL's compact steam reformer can produce large amounts of hydrogen-rich gas from a liquid fuel in just 12 seconds, significantly reducing the delay time for hydrogen fueling. The reformer's design features microchannels that provide high rates of heat and mass transport, allowing for faster reactions and reduced system size.

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.

New medical research shows safer flooring could cut hip fractures

Researchers found that carpeted wooden floors were associated with the lowest number of fractures, while concrete floors carried the greatest risk. The study suggests that replacing uncarpeted concrete flooring with carpeted wooden surfaces could reduce hip fractures by up to 80%.

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.

Study: New neurons can get out of spinal cord

Researchers at Johns Hopkins Medicine have successfully coaxed new motor neurons out of embryonic stem cells and into the spinal cords of paralyzed rats. The study, funded by various organizations, aims to overcome a major hurdle in clinical therapy for motor neuron diseases like ALS and SMA.

Molecule pumped directly into brain improves Parkinson's disease symptoms

A new study found that infusing a molecule called glial cell line-derived neurotrophic factor (GDNF) directly into the brain improved Parkinson's disease symptoms in 41% of patients. The GDNF infusion resulted in significant increases in dopamine production and was sustained for at least two years, according to the research.

Sodium channel gene mutation identified in case of familial epilepsy

A novel mutation in the SCN1A gene has been discovered in a family with generalized epilepsy with febrile seizures plus (GEFS+), a condition characterized by unusual brain activity. This finding may lead to improved diagnoses, treatments, and genetic counseling for affected individuals.

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.

Mexican Americans at greater risk for stroke than non-Hispanic whites

A population-based study in Nueces County, Texas found that Mexican Americans experience a substantially greater ischemic stroke and intracerebral hemorrhage burden compared to non-Hispanic whites. The crude annual total cerebrovascular event rate was 64 per 10,000 in Mexican Americans, nearly 30% higher than in non-Hispanic whites.

Celestron NexStar 8SE Computerized Telescope

Celestron NexStar 8SE Computerized Telescope combines portable Schmidt-Cassegrain optics with GoTo pointing for outreach nights and field campaigns.