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Science News Archive 2007


Page 156 of 203

Is there such a thing as too much sugar?

A study published in JCI Journals found that glucose reperfusion triggers more extensive neuronal death in hypoglycemic mice than prolonged hypoglycemia itself. Gradual increase of blood glucose levels may be a better approach to treat individuals in hypoglycemic coma, but the findings are subject to further clarification.

New guideline for screening mammography for women 40 to 49 years of age

The American College of Physicians recommends that clinicians assess each woman's breast cancer risk profile before making a decision about screening mammography. Women between 40-49 years old should weigh the potential benefits and harms of screening, discussing their concerns with their doctor to make an informed choice.

Laser goes tubing for faster body-fluid tests

Researchers at the University of Rochester have created a laser-based technique that measures multiple chemicals in body fluids in under 60 seconds, offering non-destructive and fast testing capabilities. The technique uses Raman spectroscopy and low-refractive-index tubes to improve signal strength and accuracy.

Drug reduces daily 'off' time for Parkinson patients

Researchers found that taking the prolonged release version of ropinirole with levodopa significantly reduced daily 'off' time by 2.1 hours compared to the placebo group. Additionally, those taking ropinirole showed improvements in troublesome Parkinson symptoms, quality of life, and motor function.

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.

Stevens and Connecticut Innovations agree to investment of $500,000 in SPOC Inc.

SPOC Inc. has developed a proprietary point-of-care medical diagnostic system that pinpoints specific myofascial trigger points causing pain, revolutionizing neck and back pain diagnosis and treatment practices. The investment from Stevens Institute of Technology and Connecticut Innovations will help commercialize the product.

Flexible electronics could find applications as sensors, artificial muscles

Researchers at Argonne National Laboratory have developed flexible electronic structures that can bend, expand, and manipulate devices, paving the way for applications in sensors and artificial muscles. These structures were created by forming single-crystalline semiconductor nanoribbons in stretchable geometrical configurations.

Delft researchers predict 'nanobattery' performance

Researchers at Delft University of Technology used neutron-diffraction research to study the effects of nanostructuring on Li-ion battery performance. They found that the phase balance changes significantly when electrode particles are scaled down, leading to reduced battery performance.

Apple iPhone 17 Pro

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

JCI table of contents: April 2, 2007

Researchers found that hypoglycemic neuronal death is triggered by glucose reperfusion and activation of NADPH oxidase. Treatment with CD40Ig allows rats to accept heart grafts from non-genetically identical donors by enhancing regulatory immune cells.

Genes found for successful smoking cessation

Researchers found that specific genes distinguish smokers who quit from those who struggle with addiction, suggesting a biological basis for success. The study could lead to personalized treatment plans tailored to individual genetic profiles.

Research on microfluidics widens the possibilities for electronic devices

Research on microfluidics widens the possibilities for electronic devices through electrowetting-based liquid-state-field-effect transistors (LiquiFETs). These devices can directly convert charge-related information from liquids into electronic signals, enabling real-time evaluation and adjustment of drug delivery.

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.

Forest elephants at risk from the illegal ivory trade

A new study warns that forest elephants are facing intense poaching pressure due to the illegal ivory trade. The researchers found only 1,900 elephants remaining in Salonga National Park, with the probability of encountering them increasing with distance from roads.

First impressions: Computer model behaves like humans on visual categorization task

A new computer model developed at the McGovern Institute for Brain Research at MIT has been shown to perform as well as humans on rapid visual categorization tasks, even making similar errors. The model follows the organization of the brain's visual system and can help neuroscientists explore brain mechanisms involved in human visual p...

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.

High-dose inhaled corticosteroid use for COPD could cut risk of lung cancer

Researchers found that regular high-dose inhaled corticosteroid use among COPD patients lowered the risk of developing lung cancer. The study, published in the American Journal of Respiratory and Critical Care Medicine, found a significant reduction in relative risk for users of over 1,200 micrograms per day.

'NO' allergic reaction linked to hayfever

Research suggests that nitric oxide and nitrite released by pollen grains trigger allergic responses in the nose. The study, funded by the Wellcome Trust, aims to investigate the role of these compounds in human cell inflammation during hayfever.

NIAID expands capability for influenza research and surveillance

The NIAID is awarding $23 million per year for seven years to establish six Centers of Excellence for Influenza Research and Surveillance. These centers will bolster influenza research in key areas, including understanding how the virus causes disease and how the human immune system responds to infection with the virus.

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.

Weight gain in pregnancy linked to overweight in kids

A new study found that pregnant women who gain excessive or adequate weight are four times more likely to have an overweight child. The study suggests reevaluating current pregnancy weight guidelines, as excessive weight gain during pregnancy can influence child health and increase the risk of obesity.

China's earliest modern human

A 40,000-year-old human skeleton found in China suggests that modern humans may have migrated to the region via multiple routes rather than a single 'out of Africa' event. The discovery provides valuable insights into the emergence of modern humans in eastern Asia.

Picky-eater flies losing smell genes

Researchers found that specialist fruit fly Drosophila sechellia is losing genes for smell and taste receptors at a faster rate than its generalist relative Drosophila simulans. This adaptation may help the flies adjust to eating specific plants.

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.

A changing climate for protected areas

A study by Conservation International finds that existing protected areas remain effective in the early stages of climate change, but adding new ones would maintain species protection in future decades and centuries. The research concludes that anticipating the need for new protected areas and getting them created in the short term wil...

Strokes may be associated with cocaine and amphetamine abuse

A study published in Archives of General Psychiatry found a significant association between cocaine and amphetamine abuse and an increased risk of stroke. The use of these stimulant drugs may raise blood pressure and contribute to narrowing blood vessels, leading to an increased risk of hemorrhagic and ischemic strokes.

Disabled hit huge roadblocks in routine health care

According to Northwestern University physician Kristi Kirschner, people with physical disabilities often encounter structural problems when trying to obtain basic care and life-saving diagnostic tests. This can lead to humiliating and terrifying experiences, as well as increased risk of injury or death.

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.

Scientists track remarkable 'breathing' in nanoporous materials

Researchers discovered a reversible 'breathing' action in nanoporous materials, with a 230% increase in volume, similar to the lungs' function. The materials can be expanded by immersing them in solvents, and then reversed by heating, exhibiting remarkable selectivity in gas absorption.

Get a whiff of this: Smell test could sniff out serious health problems

A new medical device developed by University of Cincinnati researchers could identify olfactory disorders that may be an early warning sign for Alzheimer’s disease, Parkinson’s disease, and other conditions. The Sniff Magnitude Test uses a simple observation to measure sniff size when detecting odors.

Teens get needed access to care with state health insurance

Teens who receive state health insurance through programs like Child Health Plus see improved access to care, reduced racial disparities, and increased preventive services. The program eliminates disparities in care among adolescents, bringing the percentage of all teens seeking care with the same healthcare professionals up to 95%.

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.

Rapid response was crucial to containing the 1918 flu pandemic

Historical analyses of the 1918 Spanish influenza pandemic reveal that cities with early public health measures had lower peak weekly death rates and overall mortality compared to those that waited. Implementing multiple social containment measures within a few days of first local cases recorded cut peak death rates by up to half.

Counting heads or measuring space?

Scientists discovered a new strategy for bacterial communication called efficiency sensing, which combines existing theories of quorum sensing and diffusion sensing. This approach takes into account the spatial distribution of bacteria, addressing the limitations of traditional models.

Fluke 87V Industrial Digital Multimeter

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

Natural anti-freeze -- how arthropods survive the cold

Researchers have discovered two species of arthropods that use distinct methods to combat the cold: Onychiurus arcticus loses water through dehydration, while Cryptopygus antarcticus accumulates anti-freeze compounds to lower its freezing point. These findings provide insight into the evolutionary adaptations of these animals.

Why the rich get richer

Researchers discovered that power-law distributions are common in various systems, including the internet, due to the 'rich get richer' effect. This phenomenon can be influenced by tradeoffs between network distance and connection numbers.

NAU researchers find possible caves on Mars

Researchers at Northern Arizona University have identified possible caverns on Mars that could provide a habitat for future explorers and potentially preserve evidence of past or present microbial life. The team used techniques developed for cave detection on Earth to analyze images from the Mars Odyssey mission.

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.

Autism costs society an estimated $3M per patient

A study estimates that individuals with autism incur approximately $35 billion in annual costs to society, primarily due to lost productivity and adult care. These costs can be felt well into adulthood, highlighting the need for financial planning and counseling for families of children with autism.

Darwin pharmacist awarded prestigious national fellowship

Ms Bhavini Patel, Director of Pharmacy at Royal Darwin Hospital, has received a two-year Fellowship to address the evidence-practice gap in treating chronic kidney disease in Indigenous Australians. She aims to increase use of arteriovenous fistula for haemodialysis, reducing hospitalizations and complications.

Elephant highways of death

A new study reveals that forest elephants are being pushed into remote depths of national parks due to heavy poaching for ivory near roadways. Protected areas, however, are critical to elephant survival, with some areas experiencing increased abundance despite road access.

Meta Quest 3 512GB

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

Mild head injuries increase risk of sleep disorders

Researchers found that up to 36% of people with mild traumatic brain injury suffer from circadian rhythm sleep disorder, which can worsen other symptoms. The study highlights the need for improved diagnosis and treatment of sleep disorders in these patients.

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.

U OF M awarded $22.5 million NIH contract to study avian influenza

The University of Minnesota will receive funding to monitor domestic and international wild bird populations for avian influenza viruses, aiming to rapidly identify pandemic threats. The center's research will support public health strategies for controlling the impact of an influenza pandemic.

Celestron NexStar 8SE Computerized Telescope

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

UC Davis wins new national center for avian flu research

UC Davis has been named a partner in a new $18.5 million national research center to study influenza viruses with pandemic potential. The Center for Rapid Influenza Surveillance and Research will expand the federal government's early-detection program for influenza and help reduce the chances of deadly outbreaks.