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Science News Archive December 2003


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.

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.

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.

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.

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.

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.

Apple iPhone 17 Pro

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

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 ...

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.

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.

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.

GoPro HERO13 Black

GoPro HERO13 Black records stabilized 5.3K video for instrument deployments, field notes, and outreach, even in harsh weather and underwater conditions.

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.

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.

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.

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.

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.

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.

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.

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.

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.

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.

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...

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.

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.

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.

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.

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.

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.

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.

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.

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.

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.

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.

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.

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.

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.

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.

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.

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.

Fluke 87V Industrial Digital Multimeter

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

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.

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.

Celestron NexStar 8SE Computerized Telescope

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

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.

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.

Apple MacBook Pro 14-inch (M4 Pro)

Apple MacBook Pro 14-inch (M4 Pro) powers local ML workloads, large datasets, and multi-display analysis for field and lab teams.

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.

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.

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.

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.