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Science News for April 28, 2004


Cranberry juice may reduce risk of female urinary tract infections

A study suggests that regular doses of cranberry juice or tablets can reduce the risk of female urinary tract infections (UTIs) by up to 50% in sexually active adult women. Cranberry juice's effectiveness in treating existing UTI cases is still unknown, but it offers a potential natural alternative to antibiotics.

SourceInfectious Diseases Society of America·JournalClinical Infectious Diseases·DateApr 28, 2004

U.S. oils can protect concrete bridge tendons during construction delays

A Penn State study has found that six domestic oils provided adequate corrosion protection for concrete bridge tendons in various test environments. The top-performing products from the study, including Citgo Cutting Oil NC 205 and Shell/Texaco Dromus ABD, will undergo further testing to examine their bond and ultimate flexural capacity.

SourcePenn State·DateApr 28, 2004
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.

Northwestern Memorial tests 'pacemaker' for stomach

The Northwestern Memorial Hospital is testing a stomach 'pacemaker' system that reduces hunger and helps obese patients lose weight. The system, manufactured by Transneuronix, uses electrical stimulation to induce feelings of fullness.

SourceNorthwestern Memorial HealthCare·DateApr 28, 2004

Survey shows new Mayo Clinic treatment for intractable low blood pressure

A new study from the Mayo Clinic found that pyridostigmine improves standing blood pressure without increasing blood pressure when lying down, offering a safe treatment option for patients with orthostatic hypotension. The study involved 29 patients who were satisfied with the drug's effects, with 17 taking it as their primary treatment.

SourceMayo Clinic·DateApr 28, 2004

Veterans have increased risk of ALS

A recent study found that men who served in the military were 60% more likely to develop ALS than men who did not serve. The study also revealed that military service prior to the Gulf War was associated with an increased risk of ALS, suggesting a potential link between military service and the development of this debilitating disease.

SourceAmerican Academy of Neurology·DateApr 28, 2004
Sky-Watcher EQ6-R Pro Equatorial Mount

Sky-Watcher EQ6-R Pro Equatorial Mount provides precise tracking capacity for deep-sky imaging rigs during long astrophotography sessions.

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.

SourceUniversity of Rochester Medical Center·DateApr 28, 2004

Biological computer diagnoses cancer and produces drug – in a test tube

A team of scientists developed a biological computer that can diagnose cancer and produce a drug to kill cancer cells in a test tube. The system uses pre-programmed medical knowledge and DNA-manipulating enzymes to identify cancer biomarkers and release targeted therapy.

SourceAmerican Committee for the Weizmann Institute of Science·JournalNature·DateApr 28, 2004

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.

SourceUniversity of Iowa·JournalJournal of the American Dietetic Association·DateApr 28, 2004
Apple iPhone 17 Pro

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

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.

SourceMassachusetts General Hospital·JournalHealth Affairs·DateApr 28, 2004

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.

SourceAmerican Academy of Neurology·DateApr 28, 2004

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.

SourceAmerican Academy of Neurology·DateApr 28, 2004

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.

SourceStanford Medicine·JournalNew England Journal of Medicine·DateApr 28, 2004
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.

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.

SourceEuropean Society of Human Reproduction and Embryology·JournalHuman Reproduction·DateApr 28, 2004
Fluke 87V Industrial Digital Multimeter

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

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.

SourceUniversity of North Carolina at Chapel Hill·JournalNature·DateApr 28, 2004

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.

SourceNASA/Goddard Space Flight Center·DateApr 28, 2004

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.

SourceRice University·DateApr 28, 2004
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.

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.

SourceSaint Louis University·JournalPEDIATRICS·DateApr 28, 2004

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.

SourceUniversity of Florida·DateApr 28, 2004

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.

SourceUniversity of California - Los Angeles·JournalJournal of the American Chemical Society·DateApr 28, 2004

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.

SourceEuropean Society of Human Reproduction and Embryology·JournalHuman Reproduction·DateApr 28, 2004
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.

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.

SourceAmerican Academy of Neurology·DateApr 28, 2004

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...

SourceAmerican Geophysical Union·JournalGeophysical Research Letters·DateApr 28, 2004

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.

SourceOregon Health & Science University·DateApr 28, 2004
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.

Clouds caused by aircraft exhaust may warm the U.S. climate

Researchers discovered that increased cirrus cloud cover over the US could account for nearly all of the warming observed in the country since 1975. The study suggests that contrails, formed by air traffic, contribute to this warming effect.

SourceNASA/Goddard Space Flight Center·JournalJournal of Climate·DateApr 28, 2004

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.

SourceDOE/Lawrence Berkeley National Laboratory·JournalNature·DateApr 28, 2004

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.

SourceHill and Knowlton·DateApr 28, 2004

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.

SourceAmerican Academy of Neurology·DateApr 28, 2004

Brace therapy for osteoarthrisis, legal issues in TBI research, prosthetic fitting

New prosthetic fitting system offers improved match for knee arthritis patients, while researchers find nearly 80% of patients satisfied with brace treatment. Meanwhile, studies on traumatic brain injury research reveal legal and ethical concerns, as well as effective wound healing methods using electrical stimulation.

SourceVeterans Affairs Research Communications·JournalThe Journal of Rehabilitation Research and Development·DateApr 28, 2004
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.