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Science News Archive February 2004


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.

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.

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.

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.

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.

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.

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.

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.

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.

Apple iPhone 17 Pro

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

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.

Rice University's Connexions project pioneers open-source academic publishing

The Connexions Project is a revolutionary approach to scholarly content, offering a single platform where educators can post, use, and modify knowledge freely. With over 1,600 educational modules available, Connexions enables instructors to supplement or replace textbooks with interactive simulations and multimedia.

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.

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.

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.

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.

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.

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.

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.

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.

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.

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.

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.

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.

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.

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.

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.

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...

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.

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.

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.

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.

Celestron NexStar 8SE Computerized Telescope

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

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.

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.

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.

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.

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.

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.

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.

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.

Fluke 87V Industrial Digital Multimeter

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

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.

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.

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.

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.

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.

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.

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.

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.

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.