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Science News Archive April 2005


Page 1 of 14

Cholesterol-regulating protein maintains fat-storage, fat-burning balance

Researchers discovered that LXRs regulate SREBP-1c, a key protein in fat metabolism, allowing animals to store fat when fed high-fat diets with cholesterol. The study also found that LXR's role is crucial in the biochemical pathway that regulates fat storage, suggesting a new target for obesity and heart disease treatments.

Perceived discrimination linked to coronary artery calcification

Chronic exposure to discrimination may increase the risk of cardiovascular disease in African-American women, according to a study. The research found that higher levels of perceived discrimination were associated with greater calcium buildup in the arteries, highlighting the importance of addressing this stressor for heart health.

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.

Lipoprotein abnormalities found in severely obese children

Researchers discovered significant differences in lipoprotein sizes and subclasses among severely obese white and black children, indicating higher cardiovascular risk for the former group. This study emphasizes the importance of addressing obesity-related health disparities in childhood.

Retroviral resistance gene found

Scientists at the Cold Spring Harbor Laboratory have identified a retroviral resistance gene that can help prevent HIV and other retroviruses from infecting cells. The discovery opens up new possibilities for developing treatments and therapies.

Orientation and the egg

In some species, egg orientation influences embryonic development, leading to differences in cell fate and patterning. This phenomenon highlights the importance of spatial cues during early developmental stages.

Vascular structure and function improve with diet and exercise

Researchers found that a personalized physical exercise and Mediterranean-style diet plan improved vascular structure and function in volunteers with pre-clinical cardiovascular disease risk factors. Average VO2 max increased by 3.2 mL/min/kg, while body weight decreased significantly.

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.

Male combat veterans rank high in heart disease risk

A recent study by the Life Course Socio-Economic Status (LCSES) study found that male combat veterans are more likely to be heavy drinkers and smokers compared to non-veterans and non-combat veteran controls. The researchers also discovered that older men with distant combat exposure had higher odds of obesity and physical inactivity.

Making a brain

Researchers at Cold Spring Harbor Laboratory developed a functional brain model with 1 million neurons and 16 terabytes of storage. This achievement marks a major breakthrough in neural networking, enabling faster processing speeds and increased computational power.

New study finds combat vets face more cardiovascular risks

A new study found that combat veterans are more likely to be heavy smokers and drinkers, while also experiencing lower physical inactivity compared to non-veterans. The research suggests that combat exposure may exert long-term adverse effects on cardiovascular risks.

Photoemission 100 years after Einstein

The photoelectric effect, first explained by Einstein in 1905, has become a crucial tool for understanding the properties of matter. The new issue of New Journal of Physics features research on hot electrons and high-temperature superconductors, demonstrating its relevance to tailored electronic materials.

Apple iPhone 17 Pro

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

Environmental technologies earn award for PNNL

PNNL's ecological dock design reduces harm to nearshore marine life, while a new system tracks juvenile salmon behavior, aiding restoration of critical habitats. The lab also developed a cost-effective nanomaterial to remove mercury from industrial wastes, significantly reducing production costs.

Scientists confirm Earth's energy is out of balance

A new study confirms the Earth's energy is out of balance, with more energy absorbed from the sun than emitted back to space. The imbalance, measured at 0.85 watts per meter squared, will cause an additional 0.6 degrees Celsius warming by the end of this century.

Chen receives Guggenheim fellowship

Dr. Chen will use his Guggenheim Fellowship to research the structures and properties of ferroelectric and multiferroic thin films with potential applications in various functional devices. He aims to develop theories and multiscale computational models for predicting their behaviors.

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.

Prenatal cocaine exposure exerts subtle effects on schoolchildren

Research finds that prenatal cocaine exposure is associated with smaller head circumference at birth and less optimal home environments, leading to mild effects on developmental outcomes. These effects persist into childhood, particularly as children face increased demands in the formal school years.

Salty staircase in the atlantic provides clues to ocean mixing

Researchers from WHOI studied salt fingers in the tropical Atlantic, injecting a tracer into the ocean and measuring its spread nine months later. The results showed enhanced mixing of salt and heat, with salt fingers playing a crucial role in shaping the ocean's temperature and salinity structure.

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.

Researchers drill historic hole in Atlantic Ocean floor

Researchers have drilled a historic hole in the Atlantic Ocean floor, collecting over 3,000 feet of core samples that will be analyzed for years to come. The discovery could provide new insights into how the ocean crust was formed and has evolved over time, challenging previous understanding of the Earth's interior.

New insights into HIV immunity suggest alternative approach to vaccines

Researchers at Duke University Medical Center discovered that HIV vaccines may have failed due to the induction of self-reactive antibodies, which can destroy the body's own tissues. The team proposes a new approach to develop HIV vaccines by redirecting the immune response from innate B cells to adaptive B cells.

Improved cancer treatments aim of new biology research program

A new $8.9 million research program will utilize powerful computing resources to study the systems regulating cell growth and division, potentially leading to new cancer treatments. Dr. Stuart Kauffman, a renowned theoretical biologist, will lead the program at the University of Calgary.

'Wonderful' star reveals its hot nature

The Chandra X-ray Observatory has observed an X-ray outburst from the highly evolved red giant star Mira A, revealing a bridge of hot matter streaming between it and its companion white dwarf. The detection provides insights into interactions between binary systems, including those with a collapsed star.

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.

Community efforts can reduce alcohol fatalities

Researchers found that concentrated community interventions resulted in significant declines in alcohol-related fatal crashes, with 22% reductions in crashes involving BACs of 0.01% or higher. The studies also showed a 20% decline in crashes for BACs of 0.08% or higher and a 17% decline for BACs of 0.15% or higher.

UK politicians failing to address low morale among doctors

The Lancet editorial highlights UK politicians' failure to address low morale among doctors, resulting in compromised patient care and a massively over-managed health service. Doctors seek a stronger political voice focused on augmenting professional standards, but no such voice exists currently.

Scientists confirm Earth's energy is out of balance

A recent study confirms that the Earth's energy is out of balance, with an imbalance of 0.85 watts per meter squared causing a significant impact on global temperatures. The study also reveals that warmer waters will lead to accelerated ice sheet disintegration and sea level rise.

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.

Economic consequences of a radiological or nuclear attack

PNNL's risk-based approach to cleanup standards reveals significant economic impacts overshadowing other effects, including recovery from radiological dispersion devices. The laboratory employs over 4,000 staff with a $650 million annual budget.

Antibiotic might fight HIV-induced neurological problems

Researchers found that minocycline reduced brain cell damage, inflammation, and virus levels in SIV-infected monkeys, a potential breakthrough for treating HIV-related cognitive impairment. The antibiotic was able to calm down undefined biological pathways involved in neurodegenerative diseases.

Genetically modified rice in China benefits farmers' health, study finds

A recent study found that genetically modified rice in China reduces pesticide use by 80% and increases crop yields by up to 9%. The research also indicates no significant impact on farmers' health. The study provides valuable information for developing countries considering genetically modified food crops.

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.

The state of river restoration in the US

Researchers from eight universities and conservation groups compiled a comprehensive database on nationwide river restoration projects, analyzing over 37,000 current projects. The study found that most projects were implemented in the Pacific Northwest or Chesapeake Bay watershed and had median costs of $57,000 in Georgia.

Rice and Michigan State build database on State Supreme Courts

The project provides an online analysis of every state supreme court case heard from 1995 to 1998 in all 50 states. The database contains over 400 biographical profiles of state supreme court judges and offers insights into the impact of judicial elections on judicial behavior.

New prognostic markers help identify risk of relapse

A new study found that slow recovery of normal white blood cells and high levels of leukaemic cells are predictive of relapse. The researchers discovered that these two factors predict outcome by distinct mechanisms, offering potential for personalized therapy adjustment.

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.

Project shows need for better monitoring of river restoration

A study examining 37,099 river restoration projects across the US found that individual successes exist but no consistent approach to applying best practices was identified. The Michigan team analyzed ecological success and suggests improving project management and systematic data collection.

Multiple sightings of long-lost woodpecker reported

Independent sightings of the ivory-billed woodpecker have been reported in eastern Arkansas, with video evidence suggesting that the bird may still exist. The birds were spotted in the region's swamps and hardwood forests, where conditions are becoming increasingly favorable for population growth.

Celestron NexStar 8SE Computerized Telescope

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

Scientists take major step to improve river restoration efforts

A group of 25 scientists has developed a comprehensive database of 37,099 river restoration projects to draw conclusions about regional and national trends in project numbers, costs, and environmental benefits. The study highlights the need for further research on the environmental effects of different restoration practices.

Re-discovered ivory billed woodpecker still faces challenge to survival

The ivory-billed woodpecker's reappearance sparks concerns over its long-term survival due to inadequate refuge funding. The Cache River National Wildlife Refuge, one of the largest in the country, struggles to meet basic needs despite its extensive forests, which have provided a haven for the species.

Dream teams thrive on mix of old and new blood

Researchers found that successful teams in arts and sciences have diverse membership, with old and new members adding creative spark. Unsuccessful teams are isolated, whereas successful teams are interconnected like the Kevin Bacon game.

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.

River restoration field booms, matures

The river restoration field has matured into a science, with the nation's first comprehensive database of projects documenting trends and progress. Key findings include exponential growth in restoration efforts, with $14-15 billion invested since 1990, and a need for consistent monitoring to improve future efforts.

Lower vaccination rates put children at risk

A study found that 35% of children using complementary alternative medicines (CAM) had lower vaccination rates, while 8.9% were unvaccinated for diseases like measles, mumps, and rubella. Parents' misconceptions about vaccine safety can lead to adverse events and harm their children.

Restoring polluted rivers hindered by lack of coordination

A recent study found that only 10% of river restoration projects have assessment or monitoring, highlighting the need for better coordination and data collection. The study's authors called for standards for success and improved practices to restore rivers, which are crucial for environmental management.

Meta Quest 3 512GB

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

Large-scale study identifies key stress factors facing new mums

A large-scale study identified three key areas of stress faced by new mothers: their maternal role, negative physical and lifestyle changes, and lack of social support. The study also found that personal factors such as tiredness, lack of sleep, and decreasing social activity were major concerns.

Study of iron overload yields surprising results

Researchers discovered highest blood iron levels among Asians and Pacific Islanders, yet lowest prevalence of associated HFE gene mutations. The study recruited over 100,000 participants to better understand hemochromatosis prevalence in diverse ethnic groups.

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.