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Science News Archive November 2005


Page 2 of 16

Can healthcare systems afford Herceptin for early breast cancer?

New research suggests that Herceptin may be cost-effective for certain sub-groups of patients with early breast cancer, but its use as adjuvant therapy could impose a significant financial burden on healthcare systems. The study estimates that the cost of providing Herceptin treatment in Belgium would be around €25.5 million per year.

New cell transplantation technique restores insulin production in diabetics

A new cell transplantation technique has successfully restored insulin production in diabetic patients by injecting donor islet cells into the portal vein. The procedure, which uses a steroid-free protocol and sandwich closure method, showed promising results with all 13 patients producing insulin without major complications.

Apple iPhone 17 Pro

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

A tight skirt can make a smart manager look dumb

A study published in Psychology of Women Quarterly found that businesswomen wearing tight skirts were perceived as less competent than their neutrally dressed counterparts. The research suggests women in high status occupations must resist the temptation to emphasize their sex appeal to gain respect from colleagues.

Internet may be answer to mammography crisis

A new study has shown that transmitting full-field digital mammography images over the internet can be done without compromising accuracy or security. The study, which included 1,314 diagnostic screening mammograms, demonstrated the feasibility of regional interpretation centers to improve breast cancer screening access and accuracy.

'No sweat' CT-guided injection treats embarrassing hand condition

A new CT-guided injection treatment has been found to be highly effective in treating palmar hyperhidrosis, a condition that affects up to three out of every 100 people in the US. The procedure involves injecting medication into nerve tracts and nodes, resulting in immediate successful results for 47 out of 50 patients.

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.

UF study first to quantify validity of DNA I.D. tool using marine snails

Researchers at the University of Florida have developed a DNA identification tool that can accurately identify species from animal tissue samples, with an error rate as low as 4%. The study uses a comprehensive catalog of species and analyzes tissue samples from marine organisms to quantify its effectiveness.

New model protects wetlands of the future

A new model developed by Hyun Jung Cho predicts the key factors and provides quantitative results to protect wetlands, addressing global concerns in ecological restoration. The model can be used for other coastal SAV habitats with local light requirements substituted.

Cheaper mobile phones or GPS and with enhanced performance

Researchers at Public University of Navarre develop innovative left-handed metamaterials for miniaturized mobile devices, enabling reduced size and improved signal control. The breakthrough technology uses Split Ring Resonators to achieve extremely low losses and has potential applications in wireless communication systems.

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.

Two landmark papers on amputation prevention in diabetes unveiled

Two landmark papers unveiled significant breakthroughs in preventing amputations in diabetes patients. Novel Negative Pressure Wound Therapy technology has been shown to simplify complex wounds, while powerful antibiotics have demonstrated comparable efficacy when administered once daily.

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.

Are women tougher when it comes to heart disease? Study suggests yes

A study published in the American Journal of Medicine found that women with similar levels of heart disease as men reported milder symptoms and perceived their disease as severe less often. Researchers suggest this may contribute to differences in heart care delivery between genders.

Robotic treadmill training helps retrain brain, improves walking

Research at UT Southwestern Medical Center found that robotic treadmill training increases activity in the brain responsible for muscle movement and motor learning after 12 weeks. The study suggests that rehabilitation strategies can be designed to engage critical areas of the brain necessary for walking.

Cellular molecule spurs growth of prostate cancer

A study found that Ack1 is a key driver of tumor growth in prostate cancer, and its inhibition can slow tumor formation. The researchers also discovered an experimental drug called geldanamycin that can inhibit Ack1 activity by interfering with its molecular interactions.

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.

Patients with Hepatitis C using more healthcare resources

Research reveals that patients with Hepatitis C are using more healthcare resources, including increased hospitalizations, physician visits, and costs due to disease progression. The study highlights the urgent need for better HCV treatment decisions as the patient population ages.

Transporters for the brain chemical serotonin provide

Research reveals a novel role of serotonin transporters in controlling left-right asymmetry, with implications for embryonic development and potential side effects of certain antidepressant medications. The study also highlights the importance of dynamic serotonin movement within cells.

Short-term survival rates better for US vs. Canadian heart failure patients

A recent study by Yale University researchers found that US Medicare patients with heart failure have a lower risk of dying within 30 days compared to their Canadian counterparts. However, the difference in long-term survival rates is negligible. The study suggests that the American system may excel at acute care, while the Canadian sy...

MIT sleuths discover quick way to new materials

MIT researchers have developed a way to test the mechanical properties of almost 600 different materials in a matter of days. This breakthrough could lead to faster identification of dental implants and tank armor with improved resistance.

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.

Hospitalization rates for infectious diseases increase among older adults

Hospitalization rates for infectious diseases have increased significantly among older adults in the US, with notable rises in septicemia, postoperative infections, and other conditions. This trend is likely linked to the aging of the population, which will lead to a projected increase in hospitalizations among older adults.

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.

Gene linked with precursor to visual loss

A gene variant in Complement Factor H is associated with an increased risk of soft drusen, a precursor to advanced age-related macular degeneration. The study found that the CFH variant contributes to the development of soft drusen but does not determine who will progress to advanced AMD.

Virtual colonoscopy performance enhanced by computer-aided detection

A study using virtual colonoscopy with computer-aided detection (CAD) found that CAD improved the performance of virtual colonoscopy by reducing perceptual error in interpreting large numbers of images. The technology detected polyps in 89.3% and 85.4% of patients with polyps 10mm and 8mm or larger, respectively.

New technology may help radiologists find more breast cancers

A new technology called tomosynthesis has been shown to decrease false-positive screening mammography findings by half, allowing for more accurate detection of early breast cancers. In a study of 98 women, tomosynthesis was found to be as good as or better than diagnostic mammography in 88% of cases.

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.

For many public buildings, form doesn't follow function, study finds

A new study by Ohio State University found that most people can't correctly identify the purpose of a public building just by looking at its form. The researchers used photographs of city halls, libraries, art museums, and live theaters to test this principle, with participants guessing correctly only 32% of the time.

Surprise! Computer scientists model the exclamation point

Researchers propose an alternative mode for characterizing and quantifying information, focusing on individual perception and attention. Their theory outperforms existing methods in capturing human bias toward surprising locations, with potential applications in data mining and understanding complex environments.

Carotid artery stenting improves thought process

A study of carotid artery stenting found that the procedure significantly improved cognitive speed and memory function in patients with impaired brain perfusion. The results suggest that stenting may offer benefits beyond reduced stroke risk for these patients.

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.

Distance from radiation therapy facility impacts breast cancer treatment

A study found that women's travel distance to a radiation facility significantly impacted the use of Breast-Conserving Surgery (BCSR). The odds of receiving BCSR fell by 50% for every 5-mile increase in distance. Socioeconomic factors, such as lack of insurance and ethnicity, also negatively affected BCSR usage.

Men, check your blood pressure before checking in for plastic surgery

A study by the American Society of Plastic Surgeons found that men with high blood pressure after undergoing a facelift had a significantly lower incidence of hematoma. To minimize this risk, patients should have their blood pressure controlled before surgery and manage it with their primary care physician.

Link between exposure to pollutants and type 2 diabetes

A study found that exposure to persistent organochlorine pollutants like CB-153 and DDE is significantly associated with a high prevalence of type 2 diabetes among fishermen and their wives. The results show that those with higher blood levels of these pollutants have a higher risk of developing the disease.

A wake-up call: Smoking after cancer diagnosis affects care and research

New research suggests that smoking after cancer diagnosis can lead to poorer treatment outcomes, with up to one-half of patients continuing to smoke or relapsing. Tobacco use is now recognized as a critical variable in clinical trial results, and addressing it through cessation efforts can improve success rates and quality of life.

Celestron NexStar 8SE Computerized Telescope

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

ESC issues policy statement on reperfusion therapy

The ESC has issued a policy statement on reperfusion therapy for STEMI treatment, highlighting the importance of early diagnosis and timely initiation of therapy. The statement recommends prioritizing primary PCI and thrombolytic treatment within three hours of symptom onset.

Study links progressive aphasia syndrome to prion gene

A recent NIH study found a strong association between progressive aphasia syndrome and a specific prion gene variant, suggesting that the disease may be linked to genetic variations in the prion protein. The findings have significant implications for understanding the causes of this rare neurological disorder.

Obesity prevents injections from reaching muscle

Research by Victoria O. Chan reveals that 68% of intramuscular injections do not reach the muscle due to excessive fat tissue. The study suggests a longer needle length may improve success rates for patients with obesity.

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.

Yale engineers make standardized bulk synthesis of nanowires possible

Researchers at Yale University have developed a standardized method for synthesizing bulk nanowires, allowing for the exploration of next steps in semiconductor miniaturization. The new technology produces ten-times more nanowires than previous methods and sets parameters for standardization.

Australian scientists awarded $1m research fellowships

Seven Australian scientists have been awarded $1m Pfizer Australia Research Fellowships to explore critical fields like brain stem cell activity, HIV, and neuropsychiatric disorders. The grants will support research into the genetic inheritance of glaucoma and the replication of HIV pathogens.

Many smokers fail to quit after cancer diagnosis

Patients who quit smoking around cancer diagnosis have improved disease outcomes, better QOL, and prolonged survival compared to continuing smokers. Targeted interventions combining behavioral therapy and pharmacotherapy show promise in addressing individual barriers to cessation.

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.

Snapshots at the atomic border

Researchers use high-resolution transmission electron microscope to study interactions at solid-liquid interfaces, observing density fluctuations and atom ordering in liquid aluminium. The findings suggest that crystals can induce the ordering of atoms in liquids, even in metal-ceramic systems at high temperatures.

Lost neurons affect energy balance

Researchers found that progressive loss of two types of hypothalamic neurons, Pomc and Agrp, leads to altered food intake patterns in mice. This discovery provides a potentially informative model for studying human age-related obesity and the regulation of energy homeostasis.

Studying brain activity could aid diagnosis of social phobia

Researchers found that the amygdala becomes increasingly hyperactive when patients look at threatening faces, correlating with social phobia symptoms. The study suggests functional magnetic resonance imaging could predict clinical symptom severity and monitor treatment effectiveness.

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.

An insecure role for Securin in chromosome segregation

Researchers found that human cells without securin protein can recover from widespread chromosome losses over time, suggesting compensatory mechanisms at play. This discovery has implications for cancer treatment, as mathematical models often assume cell populations cannot recover from chromosomal instability.

Feeling fat in the festive season? It's all in your mind

Researchers used functional magnetic resonance imaging to study volunteers' brains, finding high levels of activity in the posterior parietal cortex. Participants felt their waist shrink by up to 28% after a vibrating device stimulated their wrist tendon, suggesting the brain creates a map of body size through integrating signals from ...

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.

U of MN study shows nicotine vaccine has promise for helping smokers quit

A new study published in Clinical Pharmacology and Therapeutics found that a nicotine vaccine was safe and well-tolerated in helping smokers quit. The vaccine, which works by producing antibodies that bind to nicotine, showed impressive results with 38% of participants quitting for at least 30 days.