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Science News Archive March 2004


Page 8 of 14

Student builds micro biosensor chip to move DNA molecules

Eric Simone, a Johns Hopkins undergraduate, has developed a microchip that can isolate and move DNA and protein molecules. The innovative circular electrode design allows for more effective analysis in certain bio-analytical applications, holding promise for disease diagnosis and monitoring.

Apple iPhone 17 Pro

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

INEEL designing prototype system for Yucca Mountain repository

The INEEL-designed closure system will demonstrate operations and equipment, with the prototype constructed and operated at the INEEL. The project builds on INEEL's expertise in spent fuel canister welding and robotics to develop a remote-operated waste package closure system.

Scientists identify crucial gene for blood development

Researchers at Dana-Farber Cancer Institute have discovered that the MLL gene is necessary for the development of master stem cells that generate all mature blood cells. The study suggests that MLL is part of a select set of genes required for all definitive blood lineages in the embryo.

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.

Waiting between breast cancer diagnosis and treatment

Patients with stage I disease experienced longer intervals than those with more advanced disease. A multidisciplinary approach could help reduce anxiety and mistrust by allowing sufficient time for information digestion and procedure recovery.

JCI table of contents, 15 March 2004

A new gene-expression-based predictor algorithm has been developed to predict prostate cancer recurrence with high accuracy, utilizing molecular signatures that distinguish subgroups of patients with different disease outcomes. The algorithm correctly classified 88% of patients with poor prognosis into the correct group.

Memories are harder to forget than currently thought

Researchers at the University of Pennsylvania have found that 'reconsolidation' of a forgotten memory is not permanent, contradicting previous studies. The study's results challenge existing theories on memory storage and retrieval, suggesting that traumatic memories may be more resilient than previously thought.

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.

Atherosclerosis more common, progresses quicker in HIV patients

Researchers found HIV patients had significantly larger carotid IMT and higher rates of plaque build-up compared to uninfected controls. The study suggests HIV infection may be an independent risk factor for atherosclerosis, with lowest CD4 counts associated with thickest artery walls.

Combination of toxin and poison may be novel treatment for leukemia

Scientists at Johns Hopkins Medicine have found that a low-dose combination of arsenic and bryostatin can kill APL cell lines by activating the cancer cells' natural self-destruct mechanism. This therapy has potential for treating treatment-resistant acute promyelocytic leukemia, a subtype of acute myeloid leukemia with poor outcomes.

Few stroke patients get to the hospital in time for clot-dissolving therapy

According to a study, only 15% of stroke patients arrive at the hospital within three hours of symptom onset. This leads to a low rate of IV tPA use, which is critical for dissolving blood clots and restoring blood flow. The researchers found that shortening ED arrival times could significantly increase IV tPA use in the US.

Bigger isn't always better--especially if you're a rodent

Researchers investigated how small mammals use crossing structures built across the Trans-Canada Highway, finding that small covered culverts offer protection from other animals and are a cost-effective mitigation strategy. The study's findings have already influenced road construction plans, highlighting the importance of conservation...

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.

Blood pressure may predict recurrent cardiovascular events in women

Researchers found a strong relationship between increasing blood pressure and CVD risk in women, with even borderline elevations associated with an increased risk. The study of 5,218 female health professionals showed that for each 10 mm Hg increase in systolic blood pressure, CVD risk rose by 9 percent.

The bare bones of cutting the fat

Researchers found that PPAR-gamma deficiency in mice enhances bone development by increasing osteoblast production, while adipocyte differentiation is impaired. This discovery may provide new avenues for osteoporosis therapies.

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.

Stem cells offer promise for hair growth

Penn researchers have isolated stem cells in adult mice responsible for hair growth, leading to the development of potential treatments. The findings also hold promise for burn treatments, where current skin grafting methods fail to generate hair growth.

King Tut liked red wine

Spanish scientists have developed a technique to determine the color of ancient wine, revealing that King Tut's wine was made with red grapes. The analysis is the first extensive chemical analysis done on a jar from King Tut's tomb and provides evidence of the color of wine in an archaeological sample.

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.

Profiling prostate cancer

Researchers have developed a gene expression profiling method that predicts clinical outcome in prostate cancer patients. The study's findings suggest that this approach can improve our ability to stratify patient populations and optimize disease treatment.

Wasps' brains enlarge as they perform more demanding jobs

Researchers found that the mushroom bodies of wasps progressively increased in size as they took on new tasks, such as working outside the nest. This suggests that the brain structure plays a crucial role in regulating social behavior and adapting to complex environments.

Tuberculosis strains stay close to home, say Stanford researchers

The study reveals that people from different regions carry distinct strains of the tuberculosis bacteria, indicating sociological interactions play a key role in transmission. This finding has significant implications for vaccine development, potentially leading to region-specific vaccines.

Fluke 87V Industrial Digital Multimeter

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

Tissue cells can revert to stem cells

Researchers have discovered that tissue cells in clusters of 4 and 8 can revert to a stem-cell state under specific conditions, working just as well as normal stem cells. This finding could provide a new approach for harnessing differentiated cells to enhance tissue repair, similar to animals that can regenerate lost parts.

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.

New insights into devastating basketball foot injury

Duke University Medical Center researchers analyzed the forces at work during common basketball maneuvers and found that added arch support in athletic shoes can reduce maximum forces on the fifth metatarsal. This preventative action appears to relieve constant stresses and pressures, potentially preventing season-ending foot injuries.

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.

Mouse antibodies thwart SARS virus

Researchers at NIAID have found that mouse immune systems produce antibodies capable of single-handedly neutralizing the SARS virus. This discovery confirms that vaccines triggering antibodies to the SARS virus are on the right track, and could lead to a faster development of effective vaccines or antiviral drugs.

The small and the beautiful

Scientists capture real-time video-clips of signal transmission in living cells using Quantum Dots, revealing new insights into cellular processes. The breakthrough is expected to speed up the development of new cancer-curing drugs.

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.

Facing oral health disparities in Hawaii

The University of Hawaii has developed a mentoring relationship with the University of North Carolina School of Dentistry to address oral health disparities in Hawaii. The collaboration aims to improve the oral health status of the people of Hawaii by conducting pilot studies on mothers and their babies in rural communities.

Astrazeneca announces EU marketing approval for Faslodex(TM)

Faslodex, a novel oestrogen receptor antagonist, has been approved by the EU for treating advanced oestrogen receptor-positive breast cancer. The drug offers durable responses and tolerability benefits compared to existing therapies, with a unique sustained release formulation administered monthly.

African cotton market doesn't benefit from too much competition

Research from Imperial College London finds that African cotton markets benefit from a balance between competition and coordination. The study reveals that concentrated, market-based systems have been successful in meeting common challenges while maintaining reasonable prices to consumers.

Celestron NexStar 8SE Computerized Telescope

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

How to sedate? That is the question!

The demand for outpatient dental anesthesia and sedation services remains high despite a decline in training programs and an evidence-based foundation. Dr. Raymond Dionne calls for a scientific agenda to develop a safe and effective approach for dental outpatients.

Making the case for a dental caries vaccine

A new dental caries vaccine is being proposed as a crucial tool to prevent the spread of tooth decay, particularly in vulnerable populations. The symposium emphasizes the vaccine's potential to combat the disease and its impact on public health.

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.

Method produces uniform, self-assembled nanocells

Researchers at NIST have developed a new method for producing uniform, self-assembled nanocells using micrometer-size channels. These nanocells can be controlled to specific sizes and are ideal for encapsulating medicine, leading to more accurate drug delivery.

MIT adds artistic spin to study of electromagnetism

The MIT 'Weird Fields' contest utilizes creative visuals to help students grasp abstract electromagnetism concepts. By exploring vector fields through interactive software, students can better comprehend the physics behind electromagnetic forces.

How couples manage parenting forecasts later marital quality, study finds

Research found that how couples manage parenting responsibilities when their child is 6 months old affects the quality of their marriage when their child is 3 years old. Couples who had a good relationship with each other as infants but struggled with parenting conflicts were more likely to have poorer couple relationships later on.

Delving into defects spurs prospects for chip insulator

A team of NIST and IBM researchers has quantified 'electrical capture defects' in hafnium oxide chips, which can drain currents and hinder transistor operation. By applying a voltage pulse and measuring current, the scientists identified critical locations where these defects occur near the silicon substrate-hafnium oxide interface.

Scientists call for less destructive remediation at DOE sites

Scientists recommend preserving contaminated DOE sites as is, rather than undergoing costly remediation, to protect wildlife, biodiversity, and regional air and water quality. This approach would also reduce remediation costs and minimize public health risks.

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.

SARS without pneumonia could be common in outbreak areas

A recent study examines seroprevalence of non-pneumonic SARS-CoV infections in general population and healthcare workers. The findings suggest that non-pneumonic infections are more common than SARS-CoV pneumonia, shedding light on possible explanations for cases with no obvious contact to other patients.

Loss of smell linked to key protein in Alzheimer's disease

Researchers found a link between olfactory dysfunction and excess tau proteins in brain structures important for smelling. The study used genetically engineered mice to evaluate the effect of tau protein overexpression on smell perception.