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Science News Archive March 2004 - Page 8


Page 8 of 14
Apple iPhone 17 Pro

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

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.

SourceJohns Hopkins University·DateMar 15, 2004

Workload, fatigue and physical stress on physician residents in training

A prospective observational study found that physician residents worked an average of 69 hours a week, receiving 41 pages of seeking services. Ketonuria was observed in 21% of shifts, highlighting the need for stricter work hour limitations to ensure patient and physician safety.

SourceCanadian Medical Association Journal·JournalCanadian Medical Association Journal·DateMar 15, 2004

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.

SourceDOE/Idaho National Laboratory·DateMar 15, 2004
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.

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.

SourceDana-Farber Cancer Institute·JournalDevelopmental Cell·DateMar 15, 2004

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.

SourceCanadian Medical Association Journal·JournalCanadian Medical Association Journal·DateMar 15, 2004

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.

SourceJCI Journals·JournalJournal of Clinical Investigation·DateMar 15, 2004
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.

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.

SourceUniversity of Pennsylvania·JournalProceedings of the National Academy of Sciences·DateMar 15, 2004

Prenatal exposure to second-handsmoke greater for disadvantaged children, study finds

Children whose mothers were exposed to second-hand smoke during pregnancy had reduced scores on tests of cognitive development at age two. They also showed a higher likelihood of developmental delays and lower cognitive performance. The effects were more pronounced for those who experienced material hardship during pregnancy.

SourceNIH/National Institute of Environmental Health Sciences·JournalNeurotoxicology and Teratology·DateMar 15, 2004

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.

SourceAmerican Heart Association·DateMar 15, 2004

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.

SourceJohns Hopkins Medicine·JournalProceedings of the National Academy of Sciences·DateMar 15, 2004

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.

SourceJAMA Network·JournalArchives of Neurology·DateMar 15, 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.

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...

SourceUniversity of Alberta·JournalJournal of Applied Ecology·DateMar 15, 2004

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.

SourceAmerican Heart Association·DateMar 15, 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.

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.

SourceJCI Journals·JournalJournal of Clinical Investigation·DateMar 15, 2004

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.

SourceUniversity of Pennsylvania School of Medicine·JournalNature Biotechnology·DateMar 15, 2004

New computer-aided approach tailors drug dose to patient needs

Researchers developed a neural network software that predicts the best dose strategy for individual patients based on 17 characteristics. The new approach showed potential for dose prescription improvement, reducing risk of adverse side effects.

SourcePenn State·JournalClinical Pharmacology & Therapeutics·DateMar 15, 2004

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.

SourceAmerican Chemical Society·JournalAnalytical Chemistry·DateMar 15, 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.

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.

SourceJCI Journals·JournalJournal of Clinical Investigation·DateMar 15, 2004

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.

SourceUniversity of Washington·JournalNeuroscience Letters·DateMar 15, 2004

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.

SourceStanford Medicine·JournalProceedings of the National Academy of Sciences·DateMar 15, 2004
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.

Nikon Monarch 5 8x42 Binoculars

Nikon Monarch 5 8x42 Binoculars deliver bright, sharp views for wildlife surveys, eclipse chases, and quick star-field scans at dark sites.

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.

SourceCarnegie Institution for Science·JournalNature·DateMar 14, 2004

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.

SourceDuke University Medical Center·DateMar 13, 2004
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.

SourceNIH/National Institute of Allergy and Infectious Diseases·JournalJournal of Virology·DateMar 12, 2004

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.

SourceMax-Planck-Gesellschaft·JournalNature Biotechnology·DateMar 12, 2004

Study examines why new lung cancer treatment is effective for some patients but not others

A study found that gefitinib is effective for patients with non-small cell lung cancer who are female, never smoked, and have a specific type of cancer. The researchers identified two key factors associated with sensitivity to the drug: having adenocarcinoma with bronchioloalveolar features and never having smoked.

SourceMemorial Sloan Kettering Cancer Center·JournalJournal of Clinical Oncology·DateMar 12, 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.

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.

SourceInternational Association for Dental, Oral, and Craniofacial Research·DateMar 12, 2004

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.

SourceShire Health International·DateMar 12, 2004

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.

SourceImperial College London·JournalWorld Development·DateMar 12, 2004

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.

SourceInternational Association for Dental, Oral, and Craniofacial Research·DateMar 12, 2004
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.

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.

SourceInternational Association for Dental, Oral, and Craniofacial Research·DateMar 12, 2004

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.

SourceNational Inventors Hall of Fame·JournalJournal of the American Chemical Society·DateMar 11, 2004
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.

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.

SourceMassachusetts Institute of Technology·DateMar 11, 2004

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.

SourceOhio State University·JournalJournal of Family Psychology·DateMar 11, 2004

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.

SourceNational Institute of Standards and Technology (NIST)·JournalIEEE Electron Device Letters·DateMar 11, 2004

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.

SourceUniversity of Georgia·JournalScience·DateMar 11, 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.

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.

SourceThe Lancet_DELETED·JournalThe Lancet·DateMar 11, 2004

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.

SourceUniversity of Pennsylvania School of Medicine·JournalBrain Research·DateMar 11, 2004