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Science News Archive 2002


Page 21 of 93

Allergic to your DNA?

Researchers found that ICAD-deficient flies lack apoptotic DNA fragmentation due to impaired CAD protein expression. Meanwhile, DNase II-deficient flies accumulate fragmented DNA and trigger an immune response. This study reveals a crucial role for innate immunity in apoptotic DNA degradation.

Crucial gene found for embryonic stem cell maintenance

Researchers discovered Foxd3 as a crucial gene regulating embryonic stem cell fate and pluripotency. The gene is required for normal embryonic development, including the formation of inner cell mass and extraembryonic tissues.

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.

Fish fat kills cancer cells

Researchers at the Norwegian Cancer Society have discovered that certain types of fish fat contain compounds with anti-cancer properties. The study suggests that these compounds may be used to develop new treatments for various types of cancer.

Annals of Internal Medicine, tip sheet, October 15, 2002

Methadone treatment is being expanded to office-based practices for patients with addiction, aiming to make it more accessible. Hair analysis has been found to be a significant advance in assessing exposure to antiretroviral therapies and monitoring patient response to indinavir, an anti-HIV drug.

Immediate treatment helps delay progression of glaucoma

Researchers found that treating people with early-stage glaucoma immediately can delay disease progression and slow vision loss. The study followed 255 patients with early stage glaucoma in at least one eye, finding that treatment led to a slower rate of disease progression.

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.

New thinking needed on atmospheric physics, study suggests

Researchers collected sprite data during a balloon campaign to study the electromagnetic signature of lightning strokes that produce sprites. The results indicate that negative cloud to ground strokes produce sprite halos seven times more often than positive strokes, suggesting an energy imbalance in the mesosphere.

Purdue scientist adds third dimension to earth beneath our feet

A new theory suggests that the Earth's surface features can be explained by rapid changes in crustal plate direction due to convection in the mantle. The research uses powerful computer systems to model the Earth's interior in three dimensions, revealing dynamic processes that shape our planet.

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.

Foxd3 gene allows stem cells to remain stem cells

A study published by University of Pennsylvania School of Medicine reveals the Foxd3 gene plays a vital role in maintaining stem cells' pluripotency. The findings suggest that Foxd3 is essential for embryonic development and has diagnostic significance for human embryonic stem cells.

Molecular biology and biological control team up to thwart pests and weeds

Scientists are exploring how molecular genetics can improve classical biological control by finding natural enemies well adapted to target invasive pests. Genetically modified crops with toxins like Bt may also be compatible with natural enemies, offering a new approach to controlling unwanted insect pests.

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.

MRI can predict risk of heart attacks

A new study published by the American Heart Association found that MRI stress tests can predict fatal and nonfatal heart attacks in patients with certain conditions. The study used MRI stress tests on 279 men and women referred for further testing after initial ultrasound screenings were inconclusive.

Bristol: Successes and missed opportunities

The city has attracted significant investment from big companies in various sectors, but the lack of co-ordinated planning and strategic vision has hindered regional development. Despite this, the core urban area has experienced a significant turn-round with population growth and new housing developments.

Commercial driving not linked to permanent back injury

A study of 45 male identical twin pairs found no difference in disc degeneration between occupational drivers and their non-driving twin brothers. The researchers suggest shifting attention from degenerative changes to other explanations for the link between driving and back problems.

Blood pressure medication preserves cognitive function in older African-Americans

A study of 1,900 older African-American participants found that continuous antihypertensive medication reduced the risk of memory loss by over a third. The research provides another reason for African-Americans to take their blood pressure pills and highlights the importance of managing high blood pressure to prevent cognitive impairment.

Meta Quest 3 512GB

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

Telecommunications companies urged to move with the times

The telecommunications industry has transformed into a competitive and lucrative sector, but most companies are still operating on outdated business models. They need to reassess their pricing policies to generate revenue and stay ahead of new competitors.

Heavy menstrual periods associated with economic loss

Women with heavy menstrual periods experience significant economic loss due to missed work and lower health ratings. The study estimates that women who miss work because of heavy periods lose approximately $1692 a year.

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.

Southern 'stroke belt' study initiates nationwide study

The REGARDS study aims to identify known and unknown risk factors for stroke among African Americans, who face a higher mortality rate compared to whites. UVM's laboratory will analyze blood samples from 30,000 participants, providing a biological specimen bank for future research.

Software tool will help engineers design jet engines

The new software tool analyzes engine models and extracts information on mechanically sound designs, enabling faster prediction of jet engine performance. By using an optimization algorithm, the tool calculates worst-case vibration levels, allowing engineers to determine the reliability of their designs quickly.

Researchers: Protein family key to helping plants adapt

Researchers at Purdue University have discovered a crucial protein family in plants that helps them adapt to stressful conditions. The AtCPL family, which controls gene activation, plays a vital role in regulating plant responses to environmental stresses such as salinity, cold, and drought.

Young children may cope better if they remember medical procedure details

A study found that young children who discussed medical procedures with their parents recalled the experience more accurately six months later. Talking about the procedure was linked to better emotional and physical well-being. In contrast, distraction techniques were still useful during stressful or painful stages of the procedure.

Apple iPhone 17 Pro

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

Parents’ stress may affect behavior in children with heart defect

Researchers found that parents of children with congenital heart defects can cope with their child's illness and may even experience lower levels of stress and fewer behavioral problems. The study suggests that social support may be a key factor in alleviating stress and reducing behavior issues.

Cocaine-exposed children subject to stereotyping

Recent research suggests that prenatal cocaine exposure does not necessarily lead to developmental delay or behavioral problems in children. In a study of 163 children, assessors incorrectly labeled many as cocaine-exposed, perpetuating stereotypes and stigma, which can undermine cognitive and behavioral development.

Shadow proteins in thymus - Clues to how immune system works?

Researchers have found that thymic cells express hundreds of genes associated with distant organs, foreshadowing self-antigens for T cells. This discovery may lead to a new understanding of immune system mechanisms and the development of autoimmune diseases.

An 'AAAAAAAAA' battery? UF researchers make progress on tiny cell

Researchers have made significant progress on a new approach to batteries inspired by nanotechnology, which could power miniature devices and enhance portable electronics. The nano-battery approach seeks to replace traditional batteries with particles measured in billionths of a meter, potentially enhancing power storage and production.

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.

Bloodworm's way with copper likely provides paradigm for new materials

Researchers found that the bloodworm's jaw tip contains an ordered crystalline structure of copper-based biomineral atacamite. This discovery could lead to the development of new materials with properties such as hardness, lightness, and durability. The study also suggests a possible application in drug delivery.

Disruption caused by job loss may affect entire family

Researchers are studying 200 families in Baltimore to understand how children aged 9-14 are impacted when a parent loses their job. The study aims to identify coping mechanisms that can help prevent negative behavior and emotional problems, and will inform prevention programs to reduce stress.

Understanding acetaminophen poisoning

A study reveals a new mechanism in acetaminophen toxicity and suggests blocking the CAR receptor as a potential approach to treating liver damage. Researchers found that CAR plays a critical role in mediating acetaminophen's toxic effects, and a drug called androstanol shows promise in reversing this effect.

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.

ICSU to establish 'Science for Sustainable Development' programme

The International Council for Science (ICSU) has established a new 'Science for Sustainable Development' programme to address economic, environmental and social issues. Regional offices will support knowledge exchange and facilitate the development of traditional knowledge in agriculture, biodiversity and traditional medicine.

$12 Million SPORE grant spurs head and neck cancer research

UT MD Anderson Cancer Center receives $12 million SPORE grant to support head and neck cancer research, focusing on genetic susceptibility markers, angiogenic therapy, and other areas. The grant aims to accelerate progress in prevention, treatment, and early diagnosis of the disease.

Antibiotics not always beneficial for childhood ear infections

A new study suggests that antibiotics are not always beneficial for childhood ear infections, with some cases clearing up on their own. The review also found that giving children a flu shot can reduce the likelihood of otitis by 30 percent during flu season.

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.

Cancer survival rates higher than previously assumed

Recent cancer patient data reveals higher-than-expected five-year to twenty-year relative survival rates across various types of cancer. Period analysis shows more optimistic estimates compared to traditional cohort-based methods.

Freedom in the conduct of science

The International Council for Science (ICSU) examines current threats to scientific freedom and proposes recommendations to address visa restrictions and promote international collaboration. ICSU emphasizes the need for scientists to recognize their responsibilities and provide adequate information for processing visa applications.

Over-diagnosis of liver failure after paracetamol poisoning?

A retrospective analysis of 87 patients with moderate paracetamol poisoning found that acetylcysteine treatment can decrease prothrombin index values significantly. This decrease may be misinterpreted as a sign of liver failure, highlighting the need for cautious management decisions based on measurement of this value.

Lancet readers to join WHO election debate

The WHO election process will be covered in a Special Report by The Lancet, providing information on the organisational structure and history of WHO. Readers can share their comments on international health through an email address on The Lancet's website.

Sony Alpha a7 IV (Body Only)

Sony Alpha a7 IV (Body Only) delivers reliable low-light performance and rugged build for astrophotography, lab documentation, and field expeditions.

NIGMS center grants will spice up chemical libraries

The NIGMS initiative supports two Centers of Excellence in Chemical Methodologies and Library Development, focusing on high-throughput technologies to generate customized libraries. Researchers at Boston University and University of Pittsburgh will develop novel methods for synthesizing complex molecules and peptide mimetics.

Further evidence linking suicide risk to family history (p 1126)

A study published in The Lancet found that individuals with a family history of completed suicide and mental illness are two and a half times more likely to commit suicide than those without such a history. A family history of psychiatric illness increased suicide risk by around 50% for those without a prior psychiatric history.

Celestron NexStar 8SE Computerized Telescope

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

Hormones modify the type of proteins produced

Researchers found that hormones bind to specific receptors in cells, recruiting co-activators to regulate gene expression and alter protein production. This process enables a vast range of protein diversity from relatively few genetic sources.

Astronomers discover the wake of a planet around a nearby star

A team of astronomers has discovered a planet-shaped 'wake' around the nearby star Fomalhaut, suggesting the presence of an orbiting giant planet. The observation was made using the SCUBA camera, which operates in the submillimetre region of the electromagnetic spectrum.

Sex and genetics: Why birds are unfaithful to their partners

An international team of scientists found that birds use alternative reproductive behaviors to avoid inbreeding depression when mates are genetically similar. Extra-pair paternity and quasi-parasitism occur at low frequencies, but more importantly, extra-pair parentage occurs when parents are more related to each other.

NHLBI launches innovative proteomics centers

The NHLBI has launched a major initiative to boost research on protein technologies, awarding $157 million over 7 years to 10 new proteomics centers. The centers will focus on novel technologies related to healthy and diseased heart, lung, blood, and sleep processes.

Eczema patients lack natural antibiotic in skin

Researchers found that eczema patients have impaired immune response, preventing adequate antimicrobial peptide production in their skin. This deficiency may lead to increased susceptibility to skin infections, such as staphylococcus aureus and herpes simplex.

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.

Better metal forming: Magnetic pulses 'bump' metal into shape

Researchers at Ohio State University have created a new method for shaping metal using magnetism, eliminating the need for industrial lubricants. The 'bump forming' technique increases the depth of metal parts by up to 47% while reducing production costs and environmental impact.