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Science News Archive September 2005


Page 6 of 15

Scientists develop screening method for pancreatic cancer

A novel screening method for pancreatic cancer has been developed by scientists at the University of Liverpool. The method analyzes genetic mutations in pancreatic juice to determine an individual's risk of developing cancer, with results ranging from a 0.1% chance to a 90% certainty.

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.

Breakthrough in micro-device fabrication combines biology and synthetic chemistry

Researchers have developed new approaches to produce micro-devices with complex shapes and properties, opening up opportunities for biomedical, computing, environmental cleanup, defense, and other applications. The study uses biologically derived structures that can be chemically modified without changing their shape or fine features.

Scientists uncover why picture perception works

Researchers have developed a new model of visual perception that explains how the brain adjusts to viewing position, allowing images to appear undistorted even when viewed from different locations. This discovery has implications for designing better devices and creating more realistic computer graphics.

Green tea ingredient prevents Alzheimer's-like brain damage in mice

A study by USF researchers found that green tea's epigallocatechin-3-gallate (EGCG) decreases production of the Alzheimer's-related protein beta-amyloid, leading to a 54% reduction in brain-clogging plaques. EGCG may be effective in preventing and treating Alzheimer's disease through dietary supplementation.

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.

Suppression of FOXO1a gene might kill resistant ARMS tumors

The study found that suppression of the FOXO1a gene is necessary for ARMS cells to survive and avoid programmed cell death. The researchers believe that targeting this gene could lead to effective treatment options for children with ARMS tumors.

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.

Study in Royal Society journal on possiblity of human organ regeneration

A study by Professor IV Yannas suggests that adults have a dormant regenerative potential that can be reactivated with the right agents. This discovery may lead to new treatments for organ regeneration and increased longevity. The emerging field of Regenerative Medicine is based on this new treatment.

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.

Northeast Sun Grant Institute at Cornell spurs 'green revolution'

The Northeast Sun Grant Institute at Cornell is a regional hub for researching plant biomass in energy and chemical production. The institute aims to develop sustainable industries and communities by producing bio-economy goods such as biopower, biofuels, and bioproducts.

Mutation may raise prostate-cancer risk in African Americans

Mutations in the EphB2 gene are found in 15% of African-American men with a strong family history, compared to 5% without a history. This gene mutation is associated with an increased risk of prostate cancer in African-American men, particularly those with a family history.

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.

Sugar helps control cell division

New study reveals that O-GlcNAc modification of proteins regulates cell division and controls the steps and timing of cell division, contributing to cancer and other diseases. Researchers found that increasing or decreasing O-GlcNAc levels disrupts cell cycle, leading to cells with more than one nucleus, a common trait in cancer cells.

Funding for biomedical research doubles in last decade

Biomedical research funding in the US has doubled over the last decade, primarily driven by increased private and industry support. The proportion of industry funding remains relatively constant at 56%, while federal government funding for clinical trials has decreased.

Air pollution found to pose greater danger to health than earlier thought

A University of Southern California-led study found that air pollution poses a greater danger to health than previously thought, with a two- to three-fold increase in chronic health effects compared to earlier estimates. The study revealed a significant link between fine particle levels and increased risk of death from heart disease, l...

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.

Gene that controls the severity of asthma identified

A recent study by Yale University researchers has discovered a gene that controls the severity of asthma, finding that high production variants of the macrophage migration inhibitory factor (MIF) gene are associated with severe disease. The study used mice models and human data to support an important role for MIF in asthma pathogenesis.

Case astronomers find vast stellar web spun by colliding galaxies

Case Western Reserve University astronomers have captured a deep, wide-field image of the Virgo Cluster, revealing a complex web of intracluster starlight. The faint starlight is made up of stars ripped out of galaxies as they collide, providing an 'archaeological record' of violent cluster galaxy lives.

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.

Vaccine may protect babies from lethal infection

Researchers are studying a vaccine that may eliminate the risk of group B streptococcus infection in newborns, which is responsible for 1,720 annual infections and 70-90 deaths. The vaccine aims to reduce the risk by eliminating the bacteria from the vagina before birth.

Protein structure key for AIDS, cell function

Cornell researchers identified a peptide that may play a role in interrupting the interface between CD4 and HIV-AIDS. The findings mark a major step toward designing drugs that could inhibit processes related to certain diseases.

Fluke 87V Industrial Digital Multimeter

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

NIMH study to guide treatment choices for schizophrenia

The CATIE study found that while newer medications have no substantial advantage over older antipsychotics, individual differences in patient response to these drugs remain crucial. Patients on olanzapine tended to stay on the medication longer but experienced increased side effects such as weight gain and metabolic changes.

Cytokinetics presents data on CK-1827452

CK-1827452 selectively activates cardiac myosin, increasing contractility without changes in cellular calcium transient. The drug demonstrates improvement in cardiac function and output in a dog model of heart failure, supporting its therapeutic hypothesis.

Gaining ground in the race against antibiotic resistance

Researchers discovered four mutations that increase the efficiency of a bacterial enzyme rendering penicillin and cephalosporin antibiotics useless. The mutations influenced the enzyme's active site, allowing it to survive on a drug dose 64 times higher than the original enzyme.

Apple iPhone 17 Pro

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

Molecular pathway linked to breast cancer recurrence

A recent study has identified a molecular pathway linked to breast cancer recurrence, suggesting that the transcriptional repressor Snail may play a role in progression. Genetic screening of human breast cancer samples revealed that high levels of Snail expression predict decreased relapse-free survival.

Neanderthal teeth grew no faster than comparable modern humans'

Researchers found that Neanderthals' tooth growth rate was comparable to that of modern humans, suggesting they may not have had a shorter childhood than us. The study used microscopic lines on teeth to estimate growth rates and found that Neanderthal enamel formation times fell within the range of three modern populations.

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.

Use of antibiotics for acne may increase risk of common infectious illness

A study found that patients with acne treated with long-term antibiotics were more likely to develop upper respiratory tract infections (URTIs). The researchers identified individuals diagnosed with acne between 1987 and 2002, comparing the incidence of URTIs in those who received antibiotic treatment versus those who did not.

Tissue rigidity promotes tumor progression

A study published in Cancer Cell found that increased tissue rigidity promotes the malignant behavior of tumor cells by inducing Rho-generated cytoskeletal tension and focal adhesions. This discovery may lead to new therapeutic strategies for treating cancers.

Ministers work toward viable mining communities

Federal, provincial and territorial mines ministers agree that vulnerable mining communities are a priority. The conference discussed ways to maintain community viability through cooperation on exploration initiatives, processing technologies, and Aboriginal engagement.

Monitoring the response to vaccination against melanoma

Researchers have identified distinct patterns of responses in patient cells after vaccination against melanoma, which may help monitor treatment response. The study found that certain compounds were secreted by cells in patients whose tumors did not grow after vaccination.

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.

Findings relate aspirin-induced ulcers, hearing loss

A study by Rice University researchers found that salicylate causes membranes to thin, soften, and rupture more easily, increasing the risk of hearing loss. The findings provide a mechanistic basis for the debilitating side effects of anti-inflammatory drugs like aspirin and ibuprofen.

Failure to suppress irrelevant brain activity in Alzheimer disease

A study published in PLoS Medicine found that people with Alzheimer's disease have difficulty suppressing irrelevant brain activity, which can lead to cognitive impairments. This defective focusing process is characterized by reduced cross-modal inhibition, where auditory and visual processing areas are not properly deactivated.

UVa participates in landmark breast cancer screening trial

A landmark breast cancer screening trial conducted by UVa Health System found no significant difference between digital and standard x-ray mammography in detecting breast cancer. The trial, DMIST, enrolled nearly 50,000 women and used both digital and film mammograms.

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.

Doctors survey hospital food, reveal current trends

A survey of 40 hospitals found that high-fat foods contribute to the risk of heart disease among staff and visitors. In contrast, healthier options featuring vegetables, beans, and whole grains are shown to support overall health and well-being.

Molecular defect found that may cause heart failure

A recent study published in the Proceedings of the National Academy of Sciences has identified a molecular defect in specialized proteins called ryanodine receptors (RyRs) as a possible cause of heart failure. The RyRs malfunction, leading to calcium imbalances that prevent the heart from contracting effectively and relaxing adequately.

Tip sheet for Annals of Internal Medicine, Sept. 20, 2005 issue

A survey of 44 medications found that 43 were cheaper in Canada than in the US, with potential savings of up to 24% per dose. Second-generation antidepressants showed similar efficacy and safety compared to other options, making choosing an antidepressant difficult for patients.

Diamonds are a doctor's best friend

Researchers have developed diamond-like carbon coatings for medical implants, reducing friction and corrosion while providing biocompatibility. The new method of coating plastics, metals, and collagen enables the production of harder-wearing implants and enhances patient outcomes.

Anker Laptop Power Bank 25,000mAh (Triple 100W USB-C)

Anker Laptop Power Bank 25,000mAh (Triple 100W USB-C) keeps Macs, tablets, and meters powered during extended observing runs and remote surveys.

Public patients denied effective obesity treatment

Australia's Director of Obesity Research highlights lack of access to life-saving bariatric surgery for those who need it most. Over 2.6 million Australians struggle with obesity, a growing public health crisis requiring urgent attention and action from hospitals and governments.

Evolving trends in the treatment of vascular birthmarks

The current treatment approaches for port-wine stains, facial hemangiomas, and vascular malformations are presented. Pulse-dye laser therapy is found to be an effective treatment for port-wine stains, while observation may suffice for stable lesions.