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Science News Archive February 2005 - Page 11


Page 11 of 13
Apple iPhone 17 Pro

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

Why North America is not a rhythm nation

Research reveals that North American adults have difficulty perceiving rhythmic patterns in non-Western music, while infants can adapt to various rhythms. The study found that exposure to a single type of rhythm during childhood affects this ability.

SourceAssociation for Psychological Science·JournalPsychological Science·DateFeb 7, 2005

Bone density returns when teens stop using Depo Provera, Group Health study finds

A new study has found that teenaged women who stop using Depo-Provera experience significant gains in bone density compared to those still taking the contraceptive. The research suggests that continuous use of Depo-Provera leads to a loss of bone mass, which appears to be reversible once the drug is discontinued.

SourceGroup Health Research Institute·JournalArchives of Pediatrics and Adolescent Medicine·DateFeb 7, 2005

Former UNC students report mindfulness meditation helps relationships

A study conducted by Dr. James Carson and his wife Kimberly found that mindfulness meditation can help couples reduce interpersonal stress and boost their satisfaction with each other by 50%. The eight-week training sessions taught couples how to become more aware of the present moment and direct positive feelings toward their loved ones.

SourceUniversity of North Carolina at Chapel Hill·JournalBehavior Therapy·DateFeb 7, 2005
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.

Aetiology of congenital heart disease explained

Researchers identified a specific antibody causing congenital heart block, targeting the p200 part of the Ro protein. The level of this antibody in mothers correlates with the degree of damage to the heart, highlighting a potential marker for high-risk pregnancies.

SourceSwedish Research Council·JournalJournal of Experimental Medicine·DateFeb 7, 2005

Improving computer-supported work through scenario-based evaluation

Researchers developed a new method to evaluate complex systems, finding four types of benefits: measurable, tangible, intangible, and unrealized. The scenario-based evaluation (SBE) approach encourages consideration of contextual factors and provides rich recommendations for system redesign and organizational initiatives.

SourcePenn State·DateFeb 7, 2005

Children's taste sensitivity and food choices influenced by taste gene

Researchers found that genetic variation in the TAS2R38 gene affects bitter taste sensitivity in children, influencing their food preferences. Children with a bitter-sensitive allele prefer sweeter tastes, while those with two bitter-insensitive alleles tend towards vegetable consumption.

SourceMonell Chemical Senses Center·JournalPEDIATRICS·DateFeb 7, 2005
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.

When does a mole become a melanoma?

Researchers genetically engineered zebrafish to develop black-pigmented moles with mutated human BRAF and p53 genes. The study shows that BRAF mutations are necessary for mole development, but insufficient for cancer. The model provides insights into how gene mutations contribute to melanoma

SourceBoston Children's Hospital·JournalCurrent Biology·DateFeb 7, 2005

Circles of DNA might help predict success of stem cell transplantation

The level of signal-joint TRECs (sjTRECs) in the blood appears to directly reflect the ability of the transplant recipient's thymus gland to process donated stem cells. High levels of sjTRECs indicate a successful reconstitution of the T cell population, improving patient outcomes.

SourceSt. Jude Children's Research Hospital·JournalBlood·DateFeb 7, 2005

Mailman School of Public Health researchers develop infectious disease diagnostic tool

Researchers at Columbia University's Mailman School of Public Health have developed a new technology platform that can identify multiple pathogens simultaneously, providing high sensitivity and breadth. This breakthrough has the potential to revolutionize differential diagnosis and detection in various fields, including clinical medici...

SourceColumbia University's Mailman School of Public Health·JournalEmerging Infectious Diseases·DateFeb 7, 2005
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.

Gender bias in child growth evaluations may miss disease in girls

A study found that boys were more likely to be referred for growth evaluations than girls, despite girls' greater height deficits. The researchers discovered that 41% of short girls had underlying diseases, compared to 15% of short boys.

SourceChildren's Hospital of Philadelphia·JournalThe Journal of Pediatrics·DateFeb 7, 2005

Birth size and adult cancer risk

A Swedish cohort study found that larger babies had a higher risk of certain adult cancers, including lymphatic and digestive cancers. Women who were large at birth were also more likely to develop breast cancer before age 50.

SourceWiley·JournalInternational Journal of Cancer·DateFeb 7, 2005
Meta Quest 3 512GB

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

Clues on cancer from a zebrafish model of melanoma

Researchers have developed a zebrafish model that shows human BRAF mutations can induce dramatic black pigmentation and aggressive melanomas. The study also found that p53 deficiency is crucial for melanoma development, providing new insights into melanoma genetics and drug development.

SourceCell Press·JournalCurrent Biology·DateFeb 7, 2005

Sequencing of marine bacterium will help study of cell communication

The genome sequence of V. fischeri reveals surprising parallels with Vibrio cholerae and other pathogens, indicating toxin activity genes. The research sheds light on the connection between quorum sensing and global regulatory networks in bacterial cell communication.

SourceVirginia Tech·JournalProceedings of the National Academy of Sciences·DateFeb 7, 2005

Sexual frustration and learning in fruit flies

Researchers found that Drosophila males can be trained to avoid certain female pheromones associated with past failures in mating. This study demonstrates a complex learning mechanism involving hydrocarbon olfactory cues and memory consolidation.

SourceCell Press·JournalCurrent Biology·DateFeb 7, 2005
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.

While under pressure those most likely to succeed will most likely fail

A study of 93 Michigan State University undergraduates found that those who perform well under high-pressure conditions tend to do poorly in standardized tests. The researchers argue that this suggests that high-stakes tests may not be effective predictors of future academic success.

SourceBlackwell Publishing Ltd.·JournalPsychological Science·DateFeb 7, 2005
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.

Intermetallic mystery solved with atomic resolution microscope

Researchers from Brown University and Oak Ridge National Laboratory have discovered detailed atomic arrangements in Laves phases, a class of intermetallics that shatter easily. The study reveals the accepted dislocation model does not apply to these complex materials, shedding light on their brittleness.

SourceBrown University·JournalScience·DateFeb 4, 2005

Varicella vaccine effective on chicken pox; Impact on herpes zoster unclear

The varicella vaccine has significantly reduced the number of chickenpox cases and deaths from varicella, with a 66% decline in mortality. However, its impact on herpes zoster incidence, age distribution, and severity remains uncertain, emphasizing the need for continued vaccination programs.

SourceYale University·JournalNew England Journal of Medicine·DateFeb 4, 2005

Tiny superconductors withstand stronger magnetic fields

Researchers created high-quality superconducting wires with molecular dimensions, showing that theories apply to molecular-scale superconductors. The nanowires showed a remarkably weak effect on magnetic fields, contradicting previous expectations.

SourceUniversity of Illinois at Urbana-Champaign, News Bureau·JournalPhysical Review Letters·DateFeb 4, 2005
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.

Finland tops environmental scorecard at World Economic Forum in Davos

The 2005 Environmental Sustainability Index (ESI) ranks countries on 21 elements of environmental sustainability. Finland scores highest, performing well on issues like air pollution and global-scale environmental efforts, while the US ranks 45th due to weaker performance on waste generation and greenhouse gas emissions.

SourceYale University·DateFeb 4, 2005

Non-lethal weapons focus of research study

A large multicenter study will record injuries from non-lethal weapons like Tasers and bean bags, with a focus on documenting the severity of these injuries. The study, led by Wake Forest Baptist, aims to rate the safety of less-lethal weapons for the first time.

SourceAtrium Health Wake Forest Baptist·DateFeb 4, 2005

Methamphtetamine's ruinous effects on children documented in Midwest study

Researchers found situations of profound neglect, abuse, and physical danger due to drug production at home. The study also highlighted the positive response of rural communities, who stepped up to provide support and care for affected children.

SourceUniversity of Illinois at Urbana-Champaign, News Bureau·JournalChildren and Youth Services Review·DateFeb 4, 2005
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.

Premature births from inflammation and infection rapidly detected by proteomics technology

Researchers have developed a novel method called MR scoring to rapidly detect preterm birth from inflammation and infection in women. The test uses biomarkers Human neutrophil defensin 1, Human neutrophil defensin 2, Calgranulin C and Calgranulin A to identify women at risk of premature delivery with high sensitivity and specificity.

SourceYale University·JournalBritish Journal of Obstetrics and Gynaecology·DateFeb 4, 2005

PET/MRI scans may help unravel mechanisms of prenatal drug damage

The study used combined PET and MRI to track cocaine pharmacokinetics in pregnant nonhuman primates. The results showed that cocaine accumulated at the highest levels in the liver, and to a lesser extent in the brain, suggesting a unique anatomy of fetal circulation.

SourceSociety of Nuclear Medicine and Molecular Imaging·JournalJournal of Nuclear Medicine·DateFeb 4, 2005

Cricket's finicky mating behavior boosts biodiversity

The Laupala cricket's unique courtship songs play a crucial role in its rapid speciation, resulting in the formation of new species. This phenomenon sheds light on the role of individual choices in shaping species evolution and biodiversity.

SourceLehigh University·JournalNature·DateFeb 4, 2005

Infectious agent linked to mad cow disease found in organs other than the brain

A study published in Science found that prions, the infectious agents behind mad cow disease, can accumulate in organs such as the liver and pancreas in animals with chronic inflammation. The discovery suggests that the current risk classification for farm animal organs may need to be reassessed in animals suffering from inflammation.

SourceYale University·JournalScience·DateFeb 4, 2005

Weight-loss and exercise study compares center- and home-based programs

A University of Central Florida study compared two weight-loss and exercise programs, one conducted at a center and the other at home. The results showed that women who followed the home-based program lost an average of 23 pounds and experienced significant improvements in blood sugar and cholesterol levels.

SourceUniversity of Central Florida·DateFeb 4, 2005
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.

Controlling protein diversity

Hormones like estrogen and progesterone regulate protein production in cells by recruiting coactivators that enhance RNA production and alter splicing. This controlled process results in different proteins being made, leading to diverse protein diversity.

SourceBaylor College of Medicine·JournalMolecular Cell·DateFeb 3, 2005

States find alternate routes to health coverage

States are finding alternative routes to expand health insurance coverage, including new revenue sources and private-sector partnerships. Medicaid's role is being reevaluated to make programs more affordable and sustainable, with a focus on addressing underlying cost increases and increasing access for vulnerable populations.

SourceAcademyHealth·DateFeb 3, 2005

Migraine-sparked vision loss may increase stroke risk in women; Migraine

Researchers found that women who experience vision loss during a migraine are 70% more likely to have a stroke. Migraines without visual symptoms do not significantly increase stroke risk. The study's findings suggest that women with migraines and aura should address other stroke risk factors, such as smoking.

SourceAmerican Heart Association·DateFeb 3, 2005
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.

Stat5 protein inhibits spread of breast cancer cells

The research found that active Stat5 suppressed invasive tumor cell activities and aggregated breast cancer cells into clusters resembling healthy cells. Loss of Stat5 stimulated invasion, supporting its potential as a biomarker to predict risk and outcome in early-stage breast cancer patients.

SourceGeorgetown University Medical Center·JournalOncogene·DateFeb 3, 2005

Bacterial spread all down to chance: Some strains 'just the lucky ones'

Research from Imperial College London finds that bacterial communities mirror human social life, with close contacts more likely to share infections. Despite potential advantages like antibiotic resistance, the variation in pathogen strains' ability to spread is largely explained by chance.

SourceImperial College London·JournalProceedings of the National Academy of Sciences·DateFeb 3, 2005

Substance protects resilient staph bacteria

A substance called poly-gamma-DL-glutamic acid (PGA) has been shown to protect Staphylococcus epidermidis bacteria from natural human defenses. The discovery could lead to new treatments for S. epidermidis infections, which can cause serious conditions like sepsis and endocarditis.

SourceNIH/National Institute of Allergy and Infectious Diseases·JournalJournal of Clinical Investigation·DateFeb 3, 2005

Experiments prove existence of atomic chain 'anchors'

Physicists at NIST have proven the existence of atomic chain 'anchors' with lower energy levels than inner atoms. This discovery may help scientists design one-dimensional nanostructures, such as electrical wires, with tailored electrical properties.

SourceNational Institute of Standards and Technology (NIST)·JournalScience·DateFeb 3, 2005

Effective cancer treatments follow the clock

Researchers found that a genetic component of the body's internal clock affects immune cells' sensitivity to cyclophosphamide, an anti-cancer drug. The study's findings may lead to more effective and less toxic cancer treatments.

SourceHoward Hughes Medical Institute·JournalProceedings of the National Academy of Sciences·DateFeb 3, 2005
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.

New study suggests race fear isn't hard wired

Researchers at Princeton University found that automatic vigilance happens mainly when people categorize others, but this reaction can be controlled. The study used fMRI to measure activity in the amygdala and showed that participants only exhibited activation when they categorized faces by age, not racial characteristics.

SourceAssociation for Psychological Science·JournalPsychological Science·DateFeb 3, 2005

Biology in four dimensions

Scientists at EMBL have developed a new model for protein-complex interactions in yeast, revealing that key components are produced ahead of time and assembled as needed. This discovery sheds light on the dynamic behavior of cellular machines and offers potential applications in studying human and animal biological systems.

SourceEuropean Molecular Biology Laboratory·JournalScience·DateFeb 3, 2005

Using global warming to create conditions for life on Mars

Researchers suggest harnessing atmospheric interactions similar to Earth's surface temperature warming trends to create a biologically hospitable environment on Mars. Introducing man-made greenhouse gases, such as fluorine-based compounds, could melt carbon dioxide and ice on the planet, potentially reviving dormant life.

SourceAmerican Geophysical Union·DateFeb 3, 2005

Older people get the big picture faster, and they are less inhibited

Researchers found that older adults excel in visual processing tasks when the stimuli are large and high-contrast, whereas younger individuals struggle. This study provides evidence for changes in brain inhibition mechanisms as people age, shedding light on why older adults may perform better on certain visual tasks.

SourceMcMaster University·JournalNeuron·DateFeb 3, 2005
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.

Satellites see Siberian fires most common near people

A new study using NASA satellites found that Siberian fires burned mostly near people, particularly in areas with roads, towns, and cities. The research used Terra MODIS data to map fire hotspots over three years, revealing a strong link between human presence and fires.

SourceNASA/Goddard Space Flight Center·JournalEarth Interactions·DateFeb 3, 2005

The research assessment exercise is damaging UK medicine

The RAE's focus on funding has compromised training of medical students and high-quality translational research. The authors propose abolishing the RAE, recommending efficient peer-review mechanisms to recognize research excellence without compromising clinical academics.

SourceThe Lancet_DELETED·JournalThe Lancet·DateFeb 3, 2005

Lost tolerance is a grave Omenn

Researchers found that Omenn syndrome patients have greatly reduced autoimmune regulator (AIRE) expression in their thymuses, which leads to a lack of central tolerance. This results in the survival of autoreactive T cells, causing increased autoimmunity risk.

SourceJCI Journals·JournalJournal of Clinical Investigation·DateFeb 3, 2005