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Science News Archive February 2004 - Page 3


Page 3 of 11

Preventative bed rest during pregnancy may be more harmful than helpful

A $1.7 million NIH-funded study found that bed rest in high-risk pregnancies is associated with weight loss, increased risk of fetal growth restriction, backache, joint soreness, headaches, muscle loss, and depression. The study suggests that prescribed antepartum bed rest may be more harmful than helpful.

SourceSAGE·JournalBiological Research For Nursing·DateFeb 21, 2004
Apple iPhone 17 Pro

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

Lehigh researchers hone radiation source for THz devices

Terahertz (THz) frequencies have potential applications in medicine, remote sensing, imaging, and satellite communications. Lehigh researcher Yujie J. Ding has developed a compact THz radiation source that can generate coherent waves with high output powers, enabling new diagnostic tools and monitoring technologies.

SourceLehigh University·JournalApplied Physics Letters·DateFeb 20, 2004

Protein inhibits cell growth, may contribute to breast cancer

Researchers have discovered that protein cdk6 inhibits breast cancer cell growth, suggesting a promising avenue for diagnosis and treatment. Cdk6 levels were found to be significantly lower in breast cancer cells compared to normal cells, with increased expression of cdk6 linked to suppressed cell growth.

SourceNational Jewish Health·JournalMolecular Cancer Research·DateFeb 20, 2004

Blue collar workers more apt to smoke, less able to quit

Research finds blue collar workers are more apt to smoke and struggle with quitting due to low socioeconomic status. Successful quitters tend to come from wealthier backgrounds, suggesting targeted on-the-job programs can help.

SourceCenter for Advancing Health·JournalAmerican Journal of Public Health·DateFeb 20, 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.

Researchers receive $9.2 million for heart failure studies

Researchers are studying how the heart changes its energy source from fat to glucose in end-stage heart failure, which may improve pumping function and treatment outcomes. The new program aims to bridge the gap between basic genetic data and clinical trials for heart failure patients.

SourceCase Western Reserve University·DateFeb 20, 2004

Secondary complications and restoration of function in SCI

Studies investigate relationships between energy expenditure, lean muscle mass, and upper-body strength in persons with SCI. Researchers also explore potential treatments for bowel movement issues, respiratory problems, and pain management.

SourceVeterans Affairs Research Communications·JournalThe Journal of Rehabilitation Research and Development·DateFeb 20, 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.

Predators and human health

Research by Ostfeld and Holt found that mobile predators like foxes, coyotes, and falcons effectively suppress rodent numbers, reducing disease transmission to humans. In contrast, specialized predators like weasels cause periodic population booms, promoting the spread of rodent-borne pathogens.

SourceEcological Society of America·JournalFrontiers in Ecology and the Environment·DateFeb 19, 2004

System can predict disease spread

Researchers at Oregon State University and EPA developed a new approach to predict disease spread based on climate change and ecological changes. The system uses loop analysis and vectorial capacity formula to estimate the growth rate of diseases, providing valuable insights for public health officials.

SourceOregon State University·JournalTransactions of the Royal Society of Tropical Medicine and Hygiene·DateFeb 19, 2004
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.

Research adds health benefit to tomatoes

Domestic tomato varieties in the US are now producing anthocyanin-containing fruit, offering a boost to nutritional value. The discovery opens doors for developing more nutrient-rich tomato varieties, benefiting both home gardeners and the food industry.

SourceOregon State University·JournalJournal of Heredity·DateFeb 19, 2004

NASA's SORCE satellite celebrates one year of operations

The SORCE satellite has tracked exceptionally high levels of solar activity, including the third most powerful solar flare ever observed in X-rays. This comprehensive dataset will help scientists better understand the mechanisms of solar spectral-irradiance variability and their possible climatic impacts.

SourceNASA/Goddard Space Flight Center·DateFeb 19, 2004

Brain scans show how placebo eases pain

Researchers used fMRI to map changes in brain activity after volunteers received a placebo, showing the prefrontal cortex is activated in response to pain relief. The study provides new insights into the brain's pain pathways and may lead to new therapies for chronic or acute pain.

SourceVeterans Affairs Research Communications·JournalScience·DateFeb 19, 2004

Vaccine shows promise for kidney cancer

A new vaccine has shown significant improvement in 5-year progression-free survival rates for patients with renal cancer, with a 77% rate in the vaccinated group compared to 68% in the control group. The well-tolerated treatment was associated with only 12 adverse events.

SourceThe Lancet_DELETED·JournalThe Lancet·DateFeb 19, 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.

Celiac disease is a risk factor for schizophrenia

Researchers found a moderate link between celiac disease and schizophrenia, with individuals having celiac disease three times more likely to develop the condition. A gluten-free diet may be beneficial for those genetically prone to celiac disease but undiagnosed, according to lead author Dr. William W. Eaton.

SourceJohns Hopkins Bloomberg School of Public Health·DateFeb 19, 2004

Oxidation processes basis of interdisciplinary research, graduate training

The MILES IGERT program aims to develop antioxidant delivery systems, novel biocompatible synthetic polymer delivery systems, and natural and synthetic macromolecular antioxidants. Researchers are exploring controlled release of antioxidants by polymeric films and investigating the biomedical implications of oxidation processes.

SourceVirginia Tech·DateFeb 19, 2004

Empathy for pain activates pain-sensitive regions of the brain, says UCL study

A UCL study found that empathy for pain involves the affective but not sensory components of pain, and is triggered by the perception of a loved one's pain. The researchers discovered specific brain regions are activated when observing another person in pain, highlighting the emotional representation of internal bodily states.

SourceUniversity College London·JournalScience·DateFeb 19, 2004

Life in the universe takes orders from space

Researchers suggest meteorites may have delivered essential elements and asymmetry that led to the development of specific protein and sugar structures on Earth. This theory could provide a plausible explanation for how non-life became ordered and specific chemistry.

SourceArizona State University·JournalScience·DateFeb 19, 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.

Study provides new insights about brain organization

Researchers mapped rat brain activity, finding that cells in sensory borders share information from multiple senses. The discovery may explain how individuals adapt to sensory loss and improve their remaining senses.

SourceAtrium Health Wake Forest Baptist·JournalProceedings of the National Academy of Sciences·DateFeb 19, 2004

Biochemical clues to long lifespan revealed

Scientists at Boston Children's Hospital discovered that Sir2 regulates a group of proteins known as FOXO transcription factors, which confer stress resistance by detoxifying free radicals. This interaction may help reverse age-related disorders, such as Alzheimer's disease and cancer.

SourceBoston Children's Hospital·JournalScience·DateFeb 19, 2004
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.

Evolution caught in the act

A research team at the University of Michigan and the University of Texas describes how a resourceful bacterium developed an entirely new way to make disulfide bonds. This breakthrough could have significant implications for disease states like Alzheimer's and cystic fibrosis, as well as biotech applications.

SourceUniversity of Michigan·JournalScience·DateFeb 19, 2004

UCSF finding advances insight into adult stem cells in human brain

Researchers at UCSF have identified a new source of adult stem cells in the human brain, potentially leading to breakthroughs in neuroregeneration and glioma treatment. The study found that astrocytes in the subventricular zone can function as neural stem cells, producing fresh neurons and oligodendrocytes.

SourceUniversity of California - San Francisco·JournalNature·DateFeb 18, 2004

Phone fibbing is the most common method for untruths

In a study of 30 students, researchers found that phone fibbing is more likely than other forms of communication, with participants lying on average 1.6 times per day. The study suggests that real-time media boosts the opportunity for deception due to the lack of nonverbal cues.

SourceCornell University·DateFeb 18, 2004

Teamwork done right: New study sheds light on how to avoid destructive conflict

A new study by Stevens Institute of Technology researchers Drs. Patricia Holahan and Ann Mooney reveals that constructive conflict can mutate into destructive conflict if not managed properly. The study found that trusting team members, displaying supportive communication norms, and freely sharing information reduce the risk of destruc...

SourceStevens Institute of Technology·DateFeb 18, 2004

Question about fundamental chemistry of water answered

Scientists Y-Z Yue and C.Austen Angell challenge the accepted temperature for water's glass transition, proposing that it crystallizes before softening. This discovery offers a new understanding of water's phases, revealing that glassy water can remain solid at higher temperatures.

SourceArizona State University·JournalNature·DateFeb 18, 2004
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.

Cancer cells can compress blood vessels, block entry of drugs

Researchers from Massachusetts General Hospital found that cancer cells can compress both blood and lymphatic vessels within tumors. This compression limits the delivery of anticancer drugs to tumor cells. New strategies for improving cancer treatment may be developed by normalizing distorted blood supply within tumors.

SourceMassachusetts General Hospital·JournalNature·DateFeb 18, 2004

Study in worms shows how genes linked to complexity in animals

Researchers found that a specific gene, lin-48, helps Caenorhabditis elegans survive high-salt environments, giving it a key advantage over its relatives. This genetic difference may hold insights into how organ systems in more complex animals evolved.

SourceOhio State University·JournalNature Genetics·DateFeb 18, 2004

UK needs more seafarers

A study by Cardiff University predicts a current annual shortfall of UK ex-seafarers as much as 112. This shortage could lead to higher wage bills for shipping companies, reduced quality of employment, and less incentive to train cadets. The shipping industry has traditionally supplied skilled labor to shore-based industries.

SourceCardiff University·DateFeb 18, 2004

Sepsis drug also protects brain cells

Researchers have discovered that a compound used to treat sepsis also protects vital brain cells from programmed cell death. The finding opens the possibility of creating a new compound with similar effects without increased bleeding side effects.

SourceUniversity of Rochester Medical Center·JournalNeuron·DateFeb 18, 2004
Sky-Watcher EQ6-R Pro Equatorial Mount

Sky-Watcher EQ6-R Pro Equatorial Mount provides precise tracking capacity for deep-sky imaging rigs during long astrophotography sessions.

Chemical turns stem cells into beating heart cells

Scientists have discovered a synthetic chemical called cardiogenol that can selectively differentiate embryonic stem cells into beating cardiac muscle cells. This breakthrough could lead to the development of new treatments for heart disease and other degenerative conditions.

SourceAmerican Chemical Society·JournalJournal of the American Chemical Society·DateFeb 18, 2004

Shark guide probes uncharted waters

A new guide, developed by NOAA Fisheries and Rhode Island Sea Grant, aims to increase species-specific identifications without associated mortality. The guide focuses on external characteristics and uses photographs to aid in identification, helping users distinguish among 44 highly migratory shark species.

SourceUniversity of Rhode Island·DateFeb 18, 2004

Drug addiction, learning share common brain protein

Researchers have discovered a molecule that links drug-induced plasticity in one part of the brain to a mechanism underlying learning and memory in another. The study found that a specific protein, PSD-95, plays a crucial role in addiction and may also be involved in learning and memory.

SourceDuke University Medical Center·JournalNeuron·DateFeb 18, 2004

Report finds inactivated influenza virus vaccines effective in children

The study found that inactivated influenza virus vaccines are effective in protecting children against the flu, reducing hospitalization rates comparable to those of elderly people. Vaccinating children can also protect adults from getting infected and save money on treatment costs.

SourceInfectious Diseases Society of America·JournalClinical Infectious Diseases·DateFeb 18, 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.

Same-sex couples plan differently for retirement

Research reveals that same-sex couples who are happier in their relationships plan more for retirement. Lesbians tend to make financial plans with their partners, while gay men plan individually. This highlights the need for improved financial planning resources for LGBTQ+ individuals.

SourceCornell University·DateFeb 18, 2004

GM nation? Public debate: a valuable experiment

A UK public debate on GM food was evaluated as providing valuable lessons for future debates, but failed to engage the uncommitted public. The survey revealed that 36% opposed GM food, while 85% believed more research is needed on its health effects.

SourceCardiff University·DateFeb 18, 2004

Demographics not key to adoption of banking technology

The study found that demographic factors such as age, income, and education level are not key to the adoption of electronic banking technology. Instead, people's personal attitude towards the technology plays a crucial role, regardless of their background.

SourceOhio State University·JournalJournal of Consumer Affairs·DateFeb 18, 2004

Research examines treatment goals for acromegaly patients

Researchers found that achieving basal growth hormone levels of less than 2.5 µg/liter and glucose-suppressed GH levels of less than one µg/liter may not minimize cardiovascular risks in acromegaly patients. Instead, these patients are at increased risk for conditions like hypertension, diabetes, and osteoarthritis.

SourceThe Endocrine Society·JournalThe Journal of Clinical Endocrinology & Metabolism·DateFeb 18, 2004
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.

New method for converting nitrogen to ammonia

A team of Cornell University researchers has successfully converted nitrogen to ammonia in a laboratory setting, molecule by molecule, using a zirconium metal complex. The process achieves complete fixation at lower temperatures than existing industrial methods, which require high pressures.

SourceCornell University·JournalNature·DateFeb 18, 2004

What are your odds of surviving into your hundreds?

A new study found that people with short variants of the APOB gene region have significantly lower total and low-density lipoprotein cholesterol levels in their blood. This association may contribute to a protective role of these variants in younger adults, while being detrimental to longevity in older individuals.

SourceBMC (BioMed Central)·JournalBMC Medical Genetics·DateFeb 18, 2004
Meta Quest 3 512GB

Meta Quest 3 512GB enables immersive mission planning, terrain rehearsal, and interactive STEM demos with high-resolution mixed-reality experiences.

Clinical trial of new TB vaccine begins

A new TB vaccine, rBCG30, is being tested in a human clinical trial to assess its safety and immune response. The vaccine, developed by Dr. Marcus Horwitz and his team at UCLA, has shown promise in preclinical trials and could potentially reduce the TB disease burden worldwide.

SourceAeras·DateFeb 17, 2004

Effectiveness of chickenpox vaccine decreases after one year

The study found that the chickenpox vaccine's effectiveness decreases significantly after one year, with 97% efficacy in the first year and 84% in subsequent years. The vaccine's effectiveness was lower for children under 15 months old, with a 73% efficacy rate.

SourceJAMA Network·JournalJAMA·DateFeb 17, 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.

Food-borne pathogen traced to lettuce

A 1998 Finnish outbreak was traced to contaminated iceberg lettuce grown on open fields with roe deer, which carry the Y. pseudotuberculosis pathogen. Researchers investigated and proposed prevention methods, including fenced fields and disinfection strategies.

SourceInfectious Diseases Society of America·JournalThe Journal of Infectious Diseases·DateFeb 17, 2004

Stem cells found in adults may repair nerves

Researchers found that adult stem cells can repair nerves, but the process is slow and scar tissue hinders healing. The study suggests that manipulating stem cells and growth factors could stimulate nerve regeneration.

SourceUniversity of Washington·DateFeb 17, 2004