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Science News Archive December 2003 - Page 6


Page 6 of 9

Microscopes provide new view for tissue engineering

Tissue engineers can now monitor the growth and differentiation of cells in three-dimensional scaffolds with unprecedented depth. This breakthrough provides a crucial capability for the emerging field of tissue engineering, which aims to regenerate form and function in damaged or diseased tissues and organs.

SourceNational Institute of Standards and Technology (NIST)·JournalOptics Express·DateDec 9, 2003

Hear here: University of Toronto robot navigates using its own voice

Researchers at University of Toronto have developed a system that allows robots to navigate using their own unique sounds, generated by pre-recorded phrases played through elevated speakers. The system uses an array of stationary microphones to locate the robot on a virtual map and guide it around obstacles.

SourceUniversity of Toronto·JournalInformation Fusion·DateDec 9, 2003
Apple iPhone 17 Pro

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

Ebola virus-like particles prevent lethal Ebola virus infection

Researchers at USAMRIID have developed Ebola virus-like particles (VLPs) that induce both cell-mediated and humoral immunity in mice, providing 100% protection against lethal challenge. The VLPs, resembling infectious viral particles without genetic material, offer a promising vaccine platform for Ebola and other viruses.

SourceUS Army Medical Research Institute of Infectious Diseases·JournalProceedings of the National Academy of Sciences·DateDec 9, 2003

Standard helps control quality of joint replacements

A new reference material from NIST helps researchers and implant manufacturers optimize processing parameters for crosslinking, reducing brittleness and improving wear resistance in orthopedic hip implants. The material provides precise dimensions and swelling information from round-robin tests.

SourceNational Institute of Standards and Technology (NIST)·DateDec 9, 2003

History of frog deformities suggests emerging disease

Research reveals a significant rise in frog deformities over the past three decades, with a notable correlation to trematode parasites. Historically documented cases suggest an ongoing issue, while recent findings indicate increased occurrences and severity across more than 50 hotspots in North America.

SourceUniversity of Wisconsin-Madison·JournalConservation Biology·DateDec 9, 2003

American Society of Hematology honors prominent researchers with major awards

The American Society of Hematology has awarded Gary Gilliland and Janet Rowley for their significant contributions to hematology research. Dr. Gilliland's work on the molecular pathogenesis of leukemia and discovery of a cause for hypereosinophilic syndrome have provided new ways to understand cancer, while Dr. Rowley's discoveries of ...

SourceAmerican Society of Hematology·DateDec 9, 2003
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.

Bullying in schools pervasive, UCLA study finds

A recent UCLA study found that bullying is a widespread issue in schools, with up to 18% of students experiencing it. The study reveals that bullies are often popular and respected, while victims suffer from depression, social anxiety, and loneliness.

SourceUniversity of California - Los Angeles·JournalPEDIATRICS·DateDec 9, 2003

Online support for people with depression

A cross-sectional survey of over 2000 users of Internet depression communities found that major depression was most common in the UK and Sweden, with significant numbers not receiving treatment. The study also showed that online communities can reduce feelings of isolation and lead to seeking professional help.

SourceBMC (BioMed Central)·JournalBMC Psychiatry·DateDec 9, 2003

Atlantic Canadians tops in art of networking: Survey

A recent survey by Erickson found that Atlantic Canadians are best connected, with an average of 11 out of 15 occupational categories. Volunteering is key to broadening one's social network, according to Professor Bonnie Erickson.

SourceUniversity of Toronto·DateDec 9, 2003

American black cherry tree overruns Europe by playing dirty

A study by Indiana University researchers suggests that European soil microbes help the invasive American black cherry tree grow, while inhibiting native species. The research found that in Dutch greenhouses, sterilized soil led to poor growth of native cherry trees, but non-sterilized soil allowed the invasive species to thrive.

SourceIndiana University·JournalEcology Letters·DateDec 9, 2003

Tests measure compatibility of DVD disks and drives

A recent study conducted by the National Institute of Standards and Technology has found that DVD compatibility is only 85 percent, resulting in potential issues such as DVDs not working or freezing. The test involved 14 models of DVD-ROM drives and over 50 different brands and types of recordable DVD discs.

SourceNational Institute of Standards and Technology (NIST)·DateDec 9, 2003
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.

Future medical leaders have shorter futures, study says

A recent study by University of Toronto researchers found that doctors with leadership roles tend to have a shorter lifespan. The study compared the life expectancies of 1,521 doctors who graduated from U of T over the past century. On average, these leaders lived 50 years after graduation, whereas their peers lived for 52 years.

SourceUniversity of Toronto·JournalSocial Science & Medicine·DateDec 9, 2003

Researchers manipulate tiny, floating droplets on a chip

The discovery allows researchers to move droplets across a chip's surface without touching solid walls, enabling experiments with mixed droplets and materials synthesis. This technology has wide-ranging implications for microscale transport, mixing, and chemical analysis.

SourceNorth Carolina State University·JournalNature·DateDec 9, 2003

Johns Hopkins technology will guide hybrid undersea robot

A new self-powered undersea robot will descend 11,000 meters using navigation and control systems developed by Johns Hopkins researchers. The project aims to extend oceanographic research at extreme depths with a highly precise underwater vehicle.

SourceJohns Hopkins University·DateDec 9, 2003

On the tip

USC neuroscientist Emily Liman founds that calcium acts as a bridge for taste cells to send signals to the brain about what's been tasted. The study reveals new details on how the sense of taste works and could lead to the development of better artificial sweeteners or additives.

SourceUniversity of Southern California·JournalProceedings of the National Academy of Sciences·DateDec 9, 2003
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.

Rice engineers make first pure nanotube fibers

Researchers at Rice University have successfully created continuous fibers of pristine single-walled carbon nanotubes using a new processing method involving superacids. This breakthrough enables the industrial production of pure carbon nanotube threads, cables, and sheets, with potential applications in materials science and aerospace.

SourceRice University·JournalMacromolecules·DateDec 9, 2003

Testing rescue robots at arenas around the globe

Researchers conduct simulations of collapsed buildings using arena environments, focusing on advanced algorithms, sensors, and mechanisms for improved robot performance. The competition aims to increase the relevance of events for real emergencies by incorporating new limitations and sensor identifications.

SourceNational Institute of Standards and Technology (NIST)·DateDec 9, 2003

Gleevec shows promise in treating another form of leukemia

Researchers at the University of Texas M. D. Anderson Cancer Center found that pairing Gleevec with high-dose chemotherapy produces a synergistic effect in patients with Philadelphia-positive ALL, resulting in complete remissions that have lasted up to 29 months. The two-year disease-free survival rate is 85 percent, offering a promisi...

SourceUniversity of Texas M. D. Anderson Cancer Center·DateDec 9, 2003
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.

Study examines risk factors associated with colorectal cancer

Researchers found positive associations between history of first-degree relative, current smoking, and moderate to heavy alcohol use with increased risk of advanced neoplasia. Conversely, higher cereal fiber intake, vitamin D levels, and daily NSAID use were linked to lower risk.

SourceJAMA Network·JournalJAMA·DateDec 9, 2003

New dynamic PET technique offers greater comfort for cancer patients

A new dynamic PET technique has been developed to provide more accurate diagnoses and improve patient comfort during PET scans. By combining a short initial scan with a longer static scan, doctors can gather valuable data about cancer tumors and treatment response.

SourceSociety of Nuclear Medicine and Molecular Imaging·JournalJournal of Nuclear Medicine·DateDec 9, 2003

Down that long dusty trail

A team of scientists discovered a microbe that can survive at -20°C, which could provide clues about how life might thrive beneath the Martian polar ice caps. Researchers propose that similar habitats may exist on Mars and should be explored.

SourceUniversity of Southern California·JournalAstrobiology·DateDec 9, 2003

Atkins diet may reduce seizures in children with epilepsy

A limited study of six patients found that the Atkins diet helped two children and one young adult remain seizure-free for up to 20 months. The researchers suggest that the diet may be a trial run for individuals considering the ketogenic diet, but its use should be cautious due to the small study size.

SourceJohns Hopkins Medicine·DateDec 9, 2003
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.

Complementary medicine use high for prostate cancer

A study found that 29.8% of Ontario men diagnosed with prostate cancer used complementary medicine, highlighting the need for awareness and discussion among clinicians. The most commonly used products were natural health supplements like vitamin E, saw palmetto, and selenium, which may interact with conventional therapies.

SourceUniversity of Toronto·JournalUrology·DateDec 9, 2003
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.

Gene mutation leads to super-virulent strain of TB

Researchers found that a gene mutation led to a more deadly strain of tuberculosis, which spread rapidly in mice and caused increased bacterial load in organs. The mutated bacteria were able to evade the host's immune system, leading to severe infection and death.

SourceUniversity of California - Berkeley·JournalProceedings of the National Academy of Sciences·DateDec 8, 2003

NCAR model shows decrease in global dust by 2100

A new study using NCAR's global Climate System Model predicts a significant decrease in global dust levels by 2100. The reduction is expected to lower temperatures and reduce carbon dioxide removal from the atmosphere through marine organisms.

SourceNational Center for Atmospheric Research/University Corporation for Atmospheric Research·DateDec 8, 2003

Early treatment can prevent severe vision loss in premature infants

Researchers found that early treatment reduced the likelihood of poor vision from 19.5% to 14.5% and structural damage from 15.6% to 9.1% in high-risk premature infants. The study, published in the Archives of Ophthalmology, identified risk factors for ROP and showed that prompt treatment can prevent severe vision loss.

SourceJohns Hopkins Medicine·JournalArchives of Ophthalmology·DateDec 8, 2003
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.

'Duct Busters' team travels to perform newborn heart surgery at regional hospitals

The Duct Busters team repairs patent ductus arteriosus in premature newborns with high-quality surgical care, eliminating transport risks and allowing families to stay in familiar environments. The study found no significant differences in anesthesia-related complications or surgical outcomes between on-site and off-site procedures.

SourceChildren's Hospital of Philadelphia·JournalPEDIATRICS·DateDec 8, 2003

Study reveals complex changes in West Antarctic Ice Streams

Scientists studying the West Antarctic Ice Sheet have found that all its ice streams have changed substantially over the last five years, with varying effects on thickness and flow rates. The changes suggest a complex picture of the WAIS's behavior, raising more questions than answers about its future impact on global sea levels.

SourceOhio State University·DateDec 8, 2003

Last catastrophic landslide protects Kilauea from next

A recent catastrophic landslide on Kilauea has created a debris buffer that stabilizes the Hilina slump, reducing the likelihood of future collapse. The buffer was formed when a detached piece of the mountain slid away and settled beneath the ocean, creating a broad, bench-like structure.

SourceRice University·DateDec 8, 2003
Celestron NexStar 8SE Computerized Telescope

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

Major Greenland glacier, once stable, now shrinking dramatically

The Jakobshavn Glacier, one of Greenland's major drainage outlets, has been found to be accelerating and retreating rapidly. Glacial scientists have discovered that the glacier is now flowing at speeds of up to 9 kilometers per year, with ice thinning rates reaching an alarming 12 meters per year.

SourceOhio State University·DateDec 8, 2003

Higher dose of Gleevec leads to increased remission in CML patients

A higher dose of Gleevec was found to lead to increased remission in patients with chronic myeloid leukemia (CML), with 28% of patients achieving complete molecular response after 18 months. The treatment showed improved results over time, with a significant reduction in disease progression.

SourceUniversity of Texas M. D. Anderson Cancer Center·DateDec 8, 2003

Beers criteria for medications to avoid in the elderly updated

A national expert panel updated widely used criteria for potentially harmful medications in older adults. The 1997 Beers Criteria has identified 48 medications to avoid, including estrogen and Benadryl, due to increased risk of adverse drug events such as depression and bleeding.

SourceMedical College of Georgia at Augusta University·JournalArchives of Internal Medicine·DateDec 8, 2003
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.

Dietary fats may increase the risk of age-related macular degeneration

A large study found that consuming higher amounts of dietary fats, particularly vegetable and animal fats, was associated with an increased risk of progression to advanced age-related macular degeneration. In contrast, fish and nut consumption reduced the risk of AMD progression.

SourceJAMA Network·JournalArchives of Ophthalmology·DateDec 8, 2003

Genetics and family environment influence likelihood of developing alcoholic disorders

The study found that children of MZ and DZ twins with a history of alcohol dependence were significantly more likely to exhibit alcohol abuse or alcohol dependence than those with non-alcoholic fathers. A low-risk environment can moderate the impact of high genetic risk regarding offspring for the development of alcohol-use disorders.

SourceJAMA Network·JournalArchives of General Psychiatry·DateDec 8, 2003
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.

Novel gene therapy delivery uses stem cells that target, attack tumors

A novel gene therapy delivery system using stem cells has been developed to target and attack tumors, regardless of their location in the body. The system, which uses human mesenchymal progenitor cells, has shown promising results in tests with mice with various types of cancer, including ovarian, brain, breast, melanoma, and leukemia.

SourceUniversity of Texas M. D. Anderson Cancer Center·DateDec 8, 2003

How lice and bird feathers stick together

Researchers found that small lice stick to small birds and big lice prefer big birds due to the optimal hiding space between individual 'barbs' in their feathers. The study suggests that size matters for parasites, with larger hosts supporting larger louse species.

SourceUniversity of Utah·JournalProceedings of the National Academy of Sciences·DateDec 8, 2003

Atmospheric compound is double-edged sword in climate change

Researchers at Ohio State University found that sulfuric acid combines with methanol to form methyl sulfate, which can contribute to cloud formation and trapping of heat. This interaction may have a significant impact on global climate change, but the conditions required for its formation are still not fully understood.

SourceOhio State University·DateDec 8, 2003

Researchers publish Circumpolar Arctic Vegetation Map

A new map of the Arctic Tundra Biome has been published, providing a comprehensive understanding of the region's vegetation and associated characteristics. The Circumpolar Arctic Vegetation Map (CAVM) offers critical data for conservation and climate change efforts, including information on land-use change and plant biomass.

SourceUniversity of Alaska Fairbanks·DateDec 8, 2003
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.

Distress-prone people more likely to develop Alzheimer's disease

A study of older Catholic nuns found that those prone to negative emotions like depression and anxiety were more likely to develop Alzheimer's disease. This suggests that psychological distress may be a risk factor for the disease, rather than an early sign.

SourceAmerican Academy of Neurology·JournalNeurology·DateDec 8, 2003

How harmful are additives and preservatives in childhood vaccines?

A review of scientific data found that gelatin proteins and egg proteins can cause severe hypersensitivity reactions in children with allergies. However, the quantities of other substances in vaccines are too small to demonstrate any documented reactions.

SourceChildren's Hospital of Philadelphia·JournalPEDIATRICS·DateDec 8, 2003

Foundation for adult body weight may be laid during adolescence

A long-term study found that BMI tracking from adolescence to adulthood is significant and strongly related to adult weight gain. Lifestyle factors like physical activity, smoking, and parental education also play a crucial role in determining an individual's adult BMI.

SourceJAMA Network·JournalArchives of Pediatrics and Adolescent Medicine·DateDec 8, 2003

USP's hospital medication error report supports key patient safety goals

The USP MEDMARX report supports JCAHO's National Patient Safety Goals by highlighting the need to prevent patient misidentification, miscommunication, and errors with high-risk medications. The report found that 4.7% of records involved wrong-patient errors, while communication issues were the third leading cause of errors.

SourceUS Pharmacopeia·DateDec 8, 2003
Sky & Telescope Pocket Sky Atlas, 2nd Edition

Sky & Telescope Pocket Sky Atlas, 2nd Edition is a durable star atlas for planning sessions, identifying targets, and teaching celestial navigation.

Safe, friendly neighborhoods may encourage exercise

Researchers found that individuals with favorable views of their community were more likely to meet weekly physical activity recommendations. Younger participants, especially those living within $10,000-$20,000 and above $35,000 annually, exhibited higher exercise adherence rates.

SourceCenter for Advancing Health·JournalHealth Education & Behavior·DateDec 8, 2003