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Science News Archive December 2004


Page 3 of 12

Medicare HMOs fail to control costs of colon surgery in elderly patients

A study by University of South Florida researchers found that Medicare HMO beneficiaries who underwent colon resection incurred the same overall hospital charges as traditional Medicare patients, despite shorter hospital stays. The study suggests that Medicare HMOs failed to achieve their cost-saving goal in this instance.

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.

High-flying observatory reveals land changing to desert

Scientists used NASA Airborne Visible and Infrared Imaging Spectrometer (AVIRIS) to analyze vegetation and soil changes in response to rain variation over large areas. They found that long-term decrease in litter cover is the most evident sign of desertification, with significant changes in green vegetation and bare soil areas.

Poison and firearms stored in open endanger visiting kids

A study found that households with parents visiting children's homes are more likely to store firearms unlocked and have poor medication storage practices. Homes with older adults and child visitors tend to have more firearms and less safe storage, but the difference is not statistically significant.

Meta Quest 3 512GB

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

Blocking molecules protects health of implants

Researchers found that blocking CCL2 eliminates foreign body giant cells, protecting implants from damage. This discovery paves the way for a new class of therapeutic drugs to sustain implants and improve their functionality.

Apple iPhone 17 Pro

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

Annals of Internal Medicine, tip sheet, Dec. 21, 2004

Acupuncture was found to be effective in treating osteoarthritis of the knee, while its effectiveness for chronic neck pain was no better than placebo. A third study identified a clinical prediction rule that can predict which patients with low-back pain are most likely to benefit from spinal manipulation.

Patients with moderate or severe hand dermatitis responsive to drug therapy

A study found that patients with moderate or severe hand dermatitis responded significantly to oral alitretinoin treatment, with up to 53% of patients achieving clear skin. The highest dose of alitretinoin showed the most substantial response rates, making it a potential treatment option for these patients.

Fluke 87V Industrial Digital Multimeter

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

Scientists identify protein critical to melanoma growth

Researchers found that blocking CDK2 activity may control deadly skin cancer without harming normal cells. The study's findings suggest a therapeutic window for a drug that suppresses melanoma growth by shutting down CDK2 activity, potentially leading to a new treatment option.

Timing is everything for optimum combined cancer therapy

A new study published in Cancer Cell reveals that combining radiation with antiangiogenic therapy can significantly slow tumor growth when administered at the right time. The research found that a unique time period exists during which this combination is most effective, making it a potential breakthrough in cancer treatment.

Timing appears essential to combining antiangiogenesis and radiation therapy

Researchers found that timing is crucial in combining antiangiogenesis and radiation therapy, with a synergistic effect observed when radiation was administered 4-6 days after initiation of DC101 therapy. This approach improved oxygen delivery to the tumor, reducing hypoxia and increasing sensitivity to radiation.

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.

Solving the mechanism of Rett Syndrome

Researchers found that mutated MeCP2 protein represses genes, specifically targeting imprinted genes like DLX5, leading to misregulation of neurotransmitter GABA production. The study links specific defects in chromatin folding to Rett Syndrome for the first time.

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.

Fair decisions more important when hospitals face crisis like SARS

Researchers found that hospitals should prioritize fairness over quick decisions when facing a crisis like SARS, citing the need for transparency and accountability in decision-making. The study suggests areas for improvement, including better access to rationales behind decisions and formal revision/appeals mechanisms.

Mercury on the horizon

Scientists at the University of Nevada discovered that plants absorb mercury from the atmosphere through their leaves, releasing it back into the environment. This finding has significant global implications for mercury controls and highlights the need for a collaborative effort to mitigate mercury pollution.

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.

NIH halts use of COX-2 inhibitor in large cancer prevention trial

The NIH has suspended the use of celecoxib, a COX-2 inhibitor, in its large-scale cancer prevention trial after finding a two-fold increased risk of cardiovascular toxicities. The decision was made following a September 2004 report that highlighted concerns over the safety of rofecoxib, another COX-2 inhibitor.

New compound could enhance cancer treatments

A newly discovered compound, SP-4-84, has shown potential to enhance cancer treatments by increasing the effectiveness of chemotherapy drugs while reducing side effects. The compound works by inhibiting cancer cells' ability to survive chemotherapeutic treatment, allowing for lower drug dosages and fewer side effects.

Novartis announces collaboration with Bayer for EMSELEX®

EMSELEX, a new drug for treating overactive bladder, has shown efficacy in reducing incontinence episodes by up to 77% compared to placebo. The medication, selective for the M3 receptor, also improves symptoms such as urinary frequency and urgency.

Few Americans are aware they have chronic kidney disease

Chronic kidney disease affects over 7.4 million Americans with less than half the kidney function of a healthy adult, while an additional 11.3 million have at least half normal function but persistent protein in their urine. Raising awareness and controlling diabetes and hypertension are critical to reducing progression and complications.

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.

Alfred Sommer awarded prestigious Pollin Prize

Dr. Alfred Sommer receives the prestigious Pollin Prize for his groundbreaking research on vitamin A supplementation, saving millions of children's lives worldwide. Dr. Parul Christian is awarded a $100,000 fellowship stipend to continue her work on maternal nutrition and infant mortality in developing countries.

Children's anxiety prior to surgery linked to behavioral changes

A Yale University study found that children with increased preoperative anxiety are more likely to experience delirium and new maladaptive behavioral changes after surgery. Children who are younger, more emotional, and less social are at high risk of developing these issues.

Emory chemists reveal challenge to reaction theory

Researchers at Emory University reveal a new pathway for formaldehyde decomposition that bypasses the traditional transition state, providing evidence for alternative mechanisms in chemical reactions. The study's findings have implications for our understanding of transition-state theory and its applications in chemistry and biochemistry.

UCSB scientists build nanoscale 'jigsaw' puzzles made of RNA

The UCSB team has developed RNA grids with finite size and various patterns using atomic force microscopy, visualizing beautiful nano-grids and jigsaw puzzle-like structures. The researchers aim to attain total control of matter arrangement at a molecular level for applications in nanotechnology and medical testing.

Risk of tuberculosis doubles in first year of HIV infection

A large retrospective study found that tuberculosis incidence doubled within the first year of HIV infection and increased four-fold after two years. The study's unique setting, including a high incidence of tuberculosis among miners and access to free healthcare, facilitated the research.

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.

Chemical process developed to use cotton gin residue

Virginia Tech researchers have developed a chemical process to extract ethanol and xylitol from cotton gin residue. This technology has the potential to create a new industry in the state's cotton-growing region, providing a solution to the problem of residue disposal.

Four teams awarded inaugural translational cancer research grants

The American Association for Cancer Research and The V Foundation are awarding $600,000 in grants to four cancer research teams, led by top scientists, to accelerate progress against cancer. The grants will support translational research projects that aim to improve survival and quality of life for patients.

Prentiss Foundation awards $5 million to University Hospitals

The Prentiss Foundation has awarded $5 million to University Hospitals of Cleveland to create an inpatient child and adolescent psychiatric unit. This funding will address urgent needs for access to mental health care, training programs, and research for children and adolescents in Northeast Ohio.

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.

DNA may hold key to information processing and data storage

Researchers have developed DNA scaffolding that allows for the creation of high-performance nanoelectronic circuits with unprecedented precision. The technology uses synthetic DNA tiles to assemble devices closely, enabling short interconnects and high performance.

Celestron NexStar 8SE Computerized Telescope

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

Model simulates dynamics of heart rhythm disorders

A researcher created a model to simulate the dynamics of heart rhythm disorders, including ventricular tachycardia and fibrillation. The model revealed that only six spiral waves are present in the heart during fibrillation, contradicting previous assumptions about its chaotic nature.

LCD as a molecular magnifying glass

Researchers have created a surface that can align liquid-crystal molecules, enabling the construction of LCDs and opening up the possibility of biosensors. The aligned liquid crystals can detect the presence of certain types of DNA without additional equipment.

Drinking without food may set you up for high blood pressure

A study of 2,609 participants found that drinking outside of meals significantly increases the risk of hypertension. The research also showed that the volume of alcohol consumed played a more important role in the relationship between drinking and high blood pressure than how often a person drank.

NASA study finds tiny particles in air may influence carbon sinks

A recent NASA study reveals that tiny particles in the air can have a significant effect on how much carbon is transferred from the atmosphere to below-ground carbon sinks. The research found that aerosols, not clouds, tend to scatter sunlight, allowing more radiation to penetrate to leaves and increasing photosynthesis rates.

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.

Colonoscopy most reliable method for detecting colon cancer

A study comparing the relative sensitivity of colonoscopy, ACBE, and CTC found that colonoscopy detected 98% of large and 99% of small lesions, outperforming ACBE and CTC. The results have important implications for clinicians considering colon imaging tests and potentially for colon cancer screening programs.

A new twist on an old nebula

Astronomers have discovered a quadra-polar nebula with two disks formed at different times, challenging the companion-star-only model. The study, led by C. Robert O'Dell, used sharp new images from the Hubble Space Telescope to reconstruct the 3D structure of the Helix Nebula.

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.