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Science News Archive 2003 - Page 89


Page 89 of 108
Apple iPhone 17 Pro

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

Most young women retain 'traditional' view of family life

A study by sociologists at the University of Bristol found that young women in their 20s and 30s tend to hold traditional views on family life. Many prioritize motherhood and a close relationship with their mothers, even if they have career aspirations. The researchers also identified four distinct career patterns among young adults: '...

SourceEconomic & Social Research Council·DateMar 10, 2003

Scientists' transgenic chicken aids embryo research

Researchers at North Carolina State University have successfully created a line of transgenic chickens carrying a reporter gene that can be easily tracked. This innovation provides a valuable tool for studying embryo development and potentially leads to new insights into birth defects and improvements in human and animal health.

SourceNorth Carolina State University·JournalDevelopmental Dynamics·DateMar 10, 2003

Calcification in heart valve increases risk of heart attack or death

A new study found that calcification in heart valves is independently associated with an increased risk of heart attack and death. After adjusting for known risk factors, the researchers found that individuals with MAC were 50% more likely to develop cardiovascular disease and 60% more likely to die from cardiovascular causes.

SourceAmerican Heart Association·DateMar 10, 2003
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.

Oxygen deficiency is an endocrine disruptor in fish

A new study finds that oxygen deficiency can impair fish reproduction by disrupting endocrine function and reducing fertility rates. Long-term exposure to hypoxia can lead to major declines in fish populations, potentially causing extinction for some species.

SourceAmerican Chemical Society·JournalEnvironmental Science & Technology·DateMar 10, 2003

Chemical in soy alters reproductive organs in male rats

Researchers found that genistein exposure during pregnancy and lactation can lead to smaller testes and larger prostates in male offspring, as well as lower testosterone levels and decreased fertility. The study suggests potential long-term detrimental effects on male reproductive development, warranting further investigation.

SourceJohns Hopkins Medicine·JournalThe Journal of Urology·DateMar 10, 2003

Study pinpoints regulator of imprinted gene expression

Researchers have identified a critical gene called Eed that regulates epigenetic changes, leading to proper genome imprinting. The study's findings hold significance for understanding human disorders such as cancer, birth defects, and mental retardation.

SourceUniversity of North Carolina Health Care·JournalNature Genetics·DateMar 9, 2003
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.

Childhood exposure to media violence predicts young adult aggressive behavior

A study found that children who were exposed to violent TV shows at a young age were more likely to exhibit aggressive behavior as adults, including physical fights and crimes. The study suggests that parental co-viewing and content-based ratings can help mitigate the effects of media violence.

SourceAmerican Psychological Association·JournalDevelopmental Psychology·DateMar 9, 2003

Simple optoelectronic devices based on silver nanoclusters perform logic operations

Researchers at Georgia Institute of Technology have developed optoelectronic devices based on silver nanoclusters that can perform addition and other complex logic operations. The devices use electroluminescence to produce optical output, allowing for read-out without electrical contacts.

SourceGeorgia Institute of Technology Research News·JournalProceedings of the National Academy of Sciences·DateMar 8, 2003

Neural development in time and space

Researchers have identified 'transcription factors' that control the time of neural cell generation, surprising discovery given earlier spatial control roles. The findings suggest a link between temporal and spatial control mechanisms in neuronal differentiation.

SourceCold Spring Harbor Laboratory·JournalGenes & Development·DateMar 8, 2003
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.

Fast food and 'the tube': a combo for heart disease risk

A recent study published by the American Heart Association found that eating fast food meals more than twice a week was associated with double the risk of abnormal glucose control and a 50% increase in obesity risk. Additionally, frequent TV viewing habits were linked to increased odds of obesity and abnormal glucose metabolism.

SourceAmerican Heart Association·DateMar 8, 2003

Early miscues cause late problems in model of Marfan syndrome

Scientists have improved understanding of TGF-beta's regulation in Marfan syndrome by studying mice with genetic mutations. They found that blocking TGF-beta activity during development may prevent features of the disorder, including emphysema and aortic rupture.

SourceJohns Hopkins Medicine·JournalNature Genetics·DateMar 7, 2003

Gene mutation exacerbates eye defect in inherited glaucoma

Researchers discovered that a gene mutation in mice leads to severe glaucoma by disrupting ocular drainage structures. Administering L-DOPA to pregnant mice with the mutation improved pup outcomes, suggesting potential therapeutic benefits.

SourceJackson Laboratory·JournalScience·DateMar 7, 2003
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.

Newly identified molecules contribute to normal silencing of most human genes

Researchers at The Wistar Institute have discovered a family of molecular complexes involved in the repression of extensive sets of tissue-specific genes. These complexes share two core subunits, including histone deacetylase and BHC110, which operate as co-repressors to maintain gene silencing.

SourceThe Wistar Institute·JournalJournal of Biological Chemistry·DateMar 7, 2003

New, more effective option for gene data mining identified

A new method, KL clustering, has been identified as more effective than hierarchical clustering in separating gene expression data into dense clusters. The approach uses a novel measure of similarity to create well-separated clusters, offering insights into gene-gene interactions and biological processes.

SourcePenn State·JournalBioinformatics·DateMar 7, 2003

Less fit teens more likely to have precursor to diabetes

A study of 289 teenagers found that cardiovascular fitness and lower body fat are independently associated with greater insulin sensitivity. Improving fitness or reducing body fat could protect high-risk children from developing insulin resistance, a precursor to diabetes.

SourceAmerican Heart Association·DateMar 7, 2003

Call for entries: Science writing awards in acoustics

The American Institute of Physics and the Acoustical Society of America offer science writing awards in acoustics. The most recent winners include "Snap, Crackle and Pop" by Bennett Daviss and "Acoustic Surgery" by Shahram Vaezy et al.

SourceAmerican Institute of Physics·DateMar 7, 2003
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.

Dartmouth researchers put recycling in perspective

A Dartmouth study found that better transportation decisions, such as driving fuel-efficient cars, could save more energy than recycling plastic and aluminum. Researchers used life-cycle analysis to measure the environmental benefits of different activities.

SourceDartmouth College·JournalEnvironmental Science & Policy·DateMar 7, 2003

Identifying depression in preschoolers

Researchers found that preschoolers with depression exhibit symptoms similar to those in older children and adults, including anhedonia, sadness, and low energy. The study also highlighted the importance of identifying and treating depression in young children to prevent impairment of normal development.

SourceWashU Medicine·JournalJournal of the American Academy of Child & Adolescent Psychiatry·DateMar 7, 2003

Women urged to reduce heart disease risk before menopause

A study by the American Heart Association suggests that women approaching menopause should take steps to lower their heart disease risk. Researchers analyzed data from over 1,300 perimenopausal women and found that many would become eligible for cholesterol-lowering therapy after age 55 if current risk factors are not modified.

SourceAmerican Heart Association·DateMar 7, 2003

Initiative to improve technology transition

The Office of Naval Research will host a venture initiative called the 'wargame,' which aims to improve the technology transition process. The game will examine venture capital decision-making and mechanisms for engaging the venture capital community.

SourceOffice of Naval Research·DateMar 7, 2003

Organic and sustainable foods have more polyphenolics linked to health benefits

Researchers at UC Davis found that organic and sustainably-grown fruits and vegetables contain higher levels of polyphenolics, a type of natural chemical with potential health benefits. The study suggests that the absence of pesticides and fertilizers in sustainable farming practices may lead to increased production of these chemicals.

SourceUniversity of California - Davis·JournalJournal of Agricultural and Food Chemistry·DateMar 7, 2003
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.

New study offers clues to how breast cancer spreads

A new study identifies molecular predictors of breast cancer metastasis, including matriptase and HAI-1. The research may lead to a targeted way to treat cancers at risk of spreading, saving women from unnecessary chemotherapy.

SourceGeorgetown University Medical Center·JournalCancer Research·DateMar 7, 2003

Working class feels greater blood pressure effects from stress

Research finds that lower socioeconomic status groups take longer to recover from stress-induced blood pressure increases, leading to heightened disease risk. The study suggests that adapting quickly to stress is crucial in reducing biological damage.

SourceCenter for Advancing Health·JournalPsychophysiology·DateMar 7, 2003

Diabetic vets are frequent users of health care system

A study found that veterans with diabetes spent a significant amount of time in hospital and outpatient services, with nearly 40% hospitalized one or more times per year. The patients faced a high risk of dying within a given year, with approximately 6% at risk of mortality.

SourceCenter for Advancing Health·JournalThe American Journal of Managed Care·DateMar 7, 2003
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.

Columbia Univ. researchers identify possible new culprit in Alzheimer's disease plaque formation

Researchers at Columbia University have found that astrocytes can degrade beta-amyloid proteins, a key component of Alzheimer's plaques, suggesting potential therapeutic targets for the disease. The study suggests activating astrocyte activity may be beneficial in reducing plaque buildup and improving treatment outcomes.

SourceColumbia University Irving Medical Center·JournalNature Medicine·DateMar 7, 2003

Johns Hopkins scientists create forgetful mouse

Researchers genetically altered a protein to prevent phosphorylation, resulting in mice that could learn but not remember spatial locations. This discovery sheds light on the role of neuronal plasticity in learning and memory.

SourceJohns Hopkins Medicine·JournalCell·DateMar 7, 2003
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.

Anxiety poorly managed in hospitalized patients, study reports

A recent study by Ohio State University researchers found that nearly three-quarters of hospitalized patients with anxiety received treatment, but symptoms were documented on less than half of their charts. The study highlights the need for systematic evaluation and objective measures to address anxiety management in healthcare.

SourceOhio State University·JournalHeart & Lung·DateMar 7, 2003

Cigarettes send male sex life up in smoke

A study of 4,764 Chinese men found that cigarette smoking is associated with a 60% higher risk of erectile dysfunction. The risk increased with the number of cigarettes smoked daily, highlighting the negative impact of smoking on male sex life.

SourceAmerican Heart Association·DateMar 7, 2003

Short thighs linked to greater likelihood of diabetes

Researchers found an inverse relationship between upper leg length and diabetes, with shorter legs associated with higher risk. White women and Mexican-American women showed increased likelihood of diabetes for each centimeter less of ULL.

SourceAmerican Heart Association·DateMar 7, 2003

Stressed-out men may have inherited risk for early heart disease

A new study suggests that family history of heart disease and a genetic predisposition to stress may be key factors in the development of early heart disease. Men with a positive family history tend to develop heart disease 12 years earlier than those without, and experience higher stress levels

SourceHenry Ford Health·DateMar 6, 2003
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.

Eating breakfast may reduce risk of obesity, diabetes, heart disease

Research finds that eating breakfast daily lowers rates of obesity and insulin resistance syndrome, a key factor in type 2 diabetes and heart disease. Whole-grain cereals also appear to have protective effects, with daily consumption associated with a 15% reduced risk of the syndrome.

SourceAmerican Heart Association·DateMar 6, 2003

American Heart Association: obesity prevention begins in childhood

The American Heart Association's scientific statement highlights the importance of preventing childhood obesity to reduce adult heart disease risk. Studies show that obesity in children is linked to insulin resistance, type 2 diabetes, and cardiovascular disease, emphasizing the need for early interventions.

SourceAmerican Heart Association·DateMar 6, 2003

Justification for use of electroconvulsive therapy to treat depression

A comprehensive review of 73 randomized trials on electroconvulsive therapy (ECT) for depressive illness reveals significant efficacy improvements over sham ECT, pharmacotherapy, and unipolar ECT. The study underscores the importance of ECT as a treatment option for managing severe depression.

SourceThe Lancet_DELETED·JournalThe Lancet·DateMar 6, 2003
Fluke 87V Industrial Digital Multimeter

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

Climate changes may increase extreme rain/snow events in California

Climate change projections indicate an increase in heavy precipitation and extreme events in California's Sierra Nevada region, with a 37% rise in wet days per year. This could lead to more flooding due to the shift from snowfall to rainfall, reducing the buffering effects of snow.

SourceNASA/Goddard Space Flight Center·DateMar 6, 2003

Psychology professor maps choice-making in the brain

Research by Kansas State University psychology professor maps choice-making in the brain, revealing two systems: deliberative and emotional. The study demonstrates the relationship between brain activity and observed choices, with surprising results on how the brain processes risk and ambiguity.

SourceKansas State University·JournalProceedings of the National Academy of Sciences·DateMar 6, 2003

Researchers solve ballistic mystery in ceramic armor

Researchers from Johns Hopkins University and the U.S. Army Research Laboratory discovered that higher-energy impacts cause boron carbide to transform into a more fragile glassy form. This transformation has implications for the development of improved armor materials.

SourceJohns Hopkins University·JournalScience·DateMar 6, 2003

What's lost is found again: 'Virtually' rebuilding Native American monuments

The EarthWorks project uses architectural software and high-resolution computer modeling to virtually rebuild ancient Native American monuments. The team has successfully recreated the location and appearance of many region's earthworks constructed by the Adena, Hopewell and Fort Ancient cultures from as early as 600 BC.

SourceUniversity of Cincinnati·DateMar 6, 2003
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.

Idea for prostate treatment based on breast cancer discovery

A new study led by Queen's University aims to increase the sensitivity of prostate cancers to anti-cancer drugs using nitroglycerine. Researchers hope to develop a better understanding of how prostate cancer cells become resistant to chemotherapy, with potential applications for other cancers such as breast cancer.

SourceQueen's University·DateMar 6, 2003

Arizona pioneer in plastics wins top chemistry award

Vandenberg discovered isotactic polypropylene, a strong and resistant form of polypropylene used in dishwasher-safe containers and water-resistant outdoor carpets. He has since developed new biomedical polymers with potential applications in implants and medical devices.

SourceAmerican Chemical Society·DateMar 6, 2003

'One-stop' approach works well for cervical cancer prevention

A study published in The Lancet found that same-day testing and treatment led to high rates of compliance with recommended treatment, with 83.2% returning for a follow-up visit. The 'one-stop' approach also improved patient satisfaction, with nearly 98% saying the treatment was equal to or better than expected.

SourceJohns Hopkins Medicine·JournalThe Lancet·DateMar 6, 2003
Celestron NexStar 8SE Computerized Telescope

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

Tea complements drugs in fight against colon cancer

A study found that green and white tea can prevent colon tumors as effectively as the prescription drug sulindac. Moderate consumption of these teas may provide cancer protection without side effects associated with NSAIDs. The combination of tea and sulindac showed an 80% tumor reduction.

SourceOregon State University·JournalCarcinogenesis·DateMar 6, 2003

Pheromone receptors need 'escorts'

Researchers discovered that MHC proteins, including M10, play a crucial role in detecting and modulating pheromone activity in mice. The findings suggest that these proteins may act as escorts for pheromone receptors, allowing them to reach the surface of neurons where chemical reception takes place.

SourceHoward Hughes Medical Institute·JournalCell·DateMar 6, 2003