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Science News Archive November 2003


Page 8 of 10

Public access defibrillator use increasing

The study found that public access defibrillation increased from 0.82% to 2.05% between 1999 and 2002, with a 50% survival rate for those treated. Over 4,000 people were trained to use the devices, and 457 AEDs were registered.

Dyslexia may involve both vision and hearing

Researchers found that people with dyslexia integrate visual and auditory information differently than good readers, suggesting a sensory integration deficit underlying reading difficulties. This discovery could lead to a simple test for early diagnosis and more effective teaching approaches.

Sound helps augment poor vision for some tasks

Research by Wake Forest University Baptist Medical Center reveals that hearing can significantly improve the ability of individuals with mildly impaired eyesight to locate objects in space. The study found that when sound was added, participants with nearsightedness were able to perform as well as those with normal vision.

Apple iPhone 17 Pro

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

Elementary signs of heart disease found in children

A study found that more than half of children aged 8-17 had at least one metabolic syndrome risk factor, including low HDL levels and high triglycerides. The researchers detected the highest rates of multiple risk factors in children around puberty, ages 10-13.

Three genes linked to psoriasis susceptibility identified on chromosome 17

Researchers have identified three genes on chromosome 17 that play a significant role in psoriasis susceptibility. The findings are expected to lead to more successful management of the disease and potentially identify other genes involved. Further research is underway to investigate the precise role of these genes in psoriasis.

Age-related decrease in physical ability may be in the genes

Researchers have found significant decreases in growth hormone and prolactin gene expression in the cerebellum of aged mice, suggesting a possible link between these hormones and age-related declines in motor control and balance. Further study is needed to understand the role of genetic pathways in aging.

Scientists map maturation of the human brain

Researchers created a new brain mapping technique to visualize brain dynamics and dynamics of cortex maturation in children. The study found that gray matter loss begins first in motor and sensory parts of the brain, followed by areas involved in spatial orientation, speech, and language development.

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.

Genetic aberration helps explain variation in cystic fibrosis

Researchers at Johns Hopkins Medicine have identified a genetic pattern in the CFTR gene that can predict disease severity in individuals with the 5T mutation. The study found that combinations of thymine and guanine repeats in the CFTR gene affect disease status, with certain patterns being more common in people with lung disease.

Scientists find brain areas activated in true versus false memories

Researchers have found that the right fusiform area is more active when participants recognize objects as similar to those seen earlier, but less active when they correctly label them as new. This suggests that the right fusiform area plays a role in encoding specific visual details and may help reduce false memories.

Vital sign device improves resuscitation monitoring

A new wireless device called Vital Dust transmits patient data to hospital locations, enabling medical teams to monitor vital signs in real-time. This allows for faster triage and prioritization of critical patients during mass casualty events.

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.

Region of chromosome 1 important in blood pressure regulation

A genome-wide analysis of 1,875 people found a significant link between a region on chromosome 1 and blood pressure regulation. The study identified 24 genes that may play a role in hypertension, with three genes showing specific genetic changes associated with the condition.

Don't always believe what you see, suggests study on false memories

A study by Ohio State University researchers found that participants were more likely to incorrectly identify a similar image as part of the original set, even though it was not present. This suggests that visual false memories can be induced using context, challenging our perceptions and memory recall.

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.

Reading the brain

Researchers used fMRI to compare brain activity in children, adolescents and adults while reading simple words aloud, revealing differences in brain function across the lifespan. The study suggests that brain function during language tasks changes with development, potentially shedding light on language disorders.

NHGRI selects sequencing centers

The NHGRI Large-Scale Sequencing Research Network will sequence a strategic set of animal genomes totaling 54 billion base pairs. The centers aim to produce high-quality assembled genome sequences that researchers can use to address human biology and human health.

Rigol DP832 Triple-Output Bench Power Supply

Rigol DP832 Triple-Output Bench Power Supply powers sensors, microcontrollers, and test circuits with programmable rails and stable outputs.

GoPro HERO13 Black

GoPro HERO13 Black records stabilized 5.3K video for instrument deployments, field notes, and outreach, even in harsh weather and underwater conditions.

Illinois researchers create world's fastest transistor -- again

Researchers at University of Illinois at Urbana-Champaign have developed the world's fastest transistor, exceeding 509-gigahertz frequency. The device leverages indium phosphide and indium gallium arsenide materials, enabling faster current density and higher operation speeds.

Coping behaviors linked to female chromosome

Researchers found that genetic factors play a significant role in coping behaviors, with females exhibiting inherited traits from their grandmothers. The study suggests that understanding the genetic basis of coping behaviors could help develop new treatments for psychiatric disorders.

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.

Sex a necessary evolutionary commodity, new study shows

A new study shows that C. elegans progeny derived from sexual reproduction can undergo sex change after birth to better survive chemical changes in the environment and shortages of food. This development allows for increased survival flexibility and gene expression, suggesting that sex is a beneficial strategy for this species.

Open-access publishing: The debate continues

Open-access initiatives aim to make scientific research freely available online, with proponents arguing that it promotes science and improves human health. Critics, however, suggest that authors' payment models may compromise the quality of published research.

Plants' circadian clocks tune into latitude to enhance fitness

Researchers found that Arabidopsis plants from different latitudes exhibit significant variations in their circadian clocks, suggesting an adaptation to optimize fitness. The study identified five chromosomal regions contributing to the clock mechanism, including multiple genes that work together to control different parts of the process.

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.

Sex in the soil

The nematode worm can alter its sex based on the perceived food availability, affecting the sex ratio. The research helps understand how animals adapt to variable environments and why sex exists.

Highlights of the November 2003 Journal of the American Dietetic Association

Researchers found that individuals with celiac disease often struggle to maintain a gluten-free diet outside the home, impacting lifestyle and quality of life. Supplement users, particularly women, face challenges in evaluating and selecting dietary supplements due to confusion over dosage directions, labeling, and claims.

Nanowire film brings cheaper, faster electronics a step closer

Researchers have developed a method to apply nanowires to glass or plastics at room temperature, enabling the production of efficient computer chips and optical displays. This breakthrough could lead to durable consumer electronics and advanced military applications.

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.

UK trial results on value of cannabis for multiple sclerosis patients

The UK trial found no objective evidence that cannabis benefits people with multiple sclerosis, but a majority of patients reported improved symptoms. The study involved over 600 patients and assessed the effectiveness of cannabinoids in reducing muscle stiffness and improving overall wellbeing.

Draft federal guidelines issued for computer security

The National Institute of Standards and Technology (NIST) has released an initial public draft of Recommended Security Controls for Federal Information Systems (NIST SP 800-53). The guidelines will become mandatory for most federal systems in 2005, with a wide audience beyond the federal government. NIST invites public comments on the ...

New superconductor study confirms, extends Nobel theory

Researchers at Brown University and NIST have confirmed and extended Abrikosov's Nobel theory by tracking current eddies in a type II superconductor. The study revealed complex behavior and provided experimental confirmation of Abrikosov's prediction about smooth phase transitions.

Mixed verdict on Iraq 'embedded' reporters

The study found that reporters embedded with military units generally preserved their objectivity, but the practice raised serious concerns. The research also highlighted issues with pro-war bias and unattributed claims in broadcast coverage.

Meta Quest 3 512GB

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

Nitrates abundant in arid southwest

Researchers have discovered large reservoirs of nitrates in desert subsoils, challenging the concept that nitrogen is tightly retained in soil. This finding has implications for potential groundwater nitrate contamination following climate change or land-use alterations in natural deserts.

UT Southwestern scientist receives international award for lipid research

Dr. Mangelsdorf's work on lipid-sensing proteins and cholesterol metabolism has contributed to the understanding of how the body restores balance following an increase in cholesterol levels. He joins a legacy of renowned UT Southwestern scientists who have also received the Wieland Prize for their groundbreaking research.

Ice cores may yield clues to 5,000-year-old mystery

Researchers hope that ice cores and ancient plants retrieved from glaciers in the Peruvian Andes may contain clues about a mysterious global climate change that occurred over 5,000 years ago. The cores are expected to provide a critical piece of the puzzle needed to understand climate variability in the region.

Sleep apnea, depression linked in Stanford study

A Stanford study found that 18% of Europeans with depressive disorder also had a breathing-related sleep disorder, which can increase the risk of feeling sleepy and irritable. The study suggests that treating sleep apnea may help control depression in patients.

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.

Lehigh-Unilever study sheds light on mystery of cloudy wineglasses

Researchers at Lehigh University discovered that the milky band on cloudy wineglasses is actually a network of microscopic scratches created during glass manufacturing. Repeated washings in the dishwasher can cause these cracks to spread and scatter light, giving the bowl a corroded appearance.

Volcanic mysteries unraveled underwater

Researchers at USGS and international universities reveal that hot vaporized seawater contributes to the formation of new oceanic crust. High-pressure images of lava cavities show molten salt and exotic minerals formed from steam bubbles, challenging previous assumptions about seawater's boiling point at great depths.

Scripps scientists link ozone to atherosclerosis

Researchers detected 'atheronals', toxic compounds triggered by ozone in atherosclerotic plaques, suggesting a potential diagnostic marker for late-stage arterial inflammation. Ozone's role in human biology and its implications on diseases like lupus, multiple sclerosis, and rheumatoid arthritis are also explored.

Duke leaders propose overhaul of health care and the practice of medicine

Leaders at Duke University Medical Center propose a new approach to healthcare that emphasizes personalized health planning and prevention. The plan aims to reduce disease risk by analyzing individual genetic backgrounds, lifestyles, and environments, and providing patients with customized health plans.

AmScope B120C-5M Compound Microscope

AmScope B120C-5M Compound Microscope supports teaching labs and QA checks with LED illumination, mechanical stage, and included 5MP camera.

New TB vaccine shows promise in HIV infection

A new TB vaccine, using a killed Mycobacterium vaccae vaccine, has shown to enhance immunity against TB in both HIV-positive and negative patients. The study, conducted in Finland and Tanzania, suggests the vaccine may be an effective tool in preventing TB among high-risk populations.

COPD's changing face

Women with COPD are accounting for an increasing number of deaths due to rising smoking rates and occupational exposures. The disease was previously thought to be a male-dominated condition, but recent studies have shown that women's lung health has improved significantly over the past few decades.

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 work to break cellular code

Researchers use genome-wide location analysis to study how a transcription factor Ste12 responds differently under various environmental conditions. By pinpointing the mechanism, scientists can make predictions of cellular behavior and potentially disrupt certain diseases at the cellular level.

Scientists believe ancient arachnids may have spun silk like modern spiders

Scientists at Ohio State University have found evidence of silk-spinning structures on the fossilized body of an ancient arachnid, called Aphantomartus pustulatus. The finding suggests that silk-spinning has been around for a long time and could provide insights into the early evolution of arachnids and life on land.

$2.25 million institute for fuel cell development

The Cornell Institute for Fuel Cell Development aims to create more efficient and affordable fuel cells by discovering new materials, potentially using alternative fuels like methanol and ethanol. Researchers hope to find compounds that can overcome the limitations of current fuel cell technology.

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.