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Science News Archive 2009


Page 260 of 277

Exercise underutilized for chronic back and neck pain

Individuals with chronic back and neck pain are less likely to receive exercise prescriptions, with physical therapists prescribing it most frequently. Exercise is a moderately effective therapy for this highly disabling illness, but its underutilization may hinder treatment outcomes.

Teen smoking could lead to adult depression, study says

A new Florida State University study found that nicotine exposure in adolescence can lead to depression-like symptoms in adulthood. The researchers injected adolescent rats with nicotine and found that even brief exposure could have long-lasting effects, causing behavioral changes symptomatic of depression.

Pole-to-pole flights provide first global picture of greenhouse gases

Scientists embark on three-year project to measure carbon dioxide and other greenhouse gases worldwide, shedding light on their distribution and impact on climate change. The research will enable better predictions of greenhouse gas emissions and inform society's decisions about climate change mitigation.

Apple iPhone 17 Pro

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

Discovery of ionic elemental crystal against chemical intuition

A new phase of pure boron has been discovered with a partially ionic structure, exhibiting unusual physical properties and bringing surprise to the scientific community. The discovery was made possible by a computational method developed by ETH Zurich researcher Artem Oganov, who predicted the stable crystal structures of materials.

How your body clock avoids hitting the snooze button

Researchers found three factors governing circadian clock resetting: Cryptochrome, Jetlag, and Timeless. These proteins fine-tune light responses on a molecular level, ensuring the bodyclock stays synchronized with its environment.

Birds' strategic mobbing fends off parasitic invaders

Researchers found that reed warblers employ a defense-in-depth strategy by mobbing model cuckoos at high-risk nests, reducing parasitism rates. Mobbing is adaptive in contexts where brood parasitism varies spatially and temporally.

Study finds preemies more likely to score positive

Children born preterm are at three times higher risk of screening positive for autism, according to a Boston University study. The modified checklist for autism in toddlers (M-CHAT) is used to assess developmental risks, with over 21% of children in the study screening positive.

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.

New data show periodontal treatment doesn't reduce preterm birth risk

A randomized trial of 1,800 pregnant women with periodontal disease found that routine gum treatments do not reduce the risk of early delivery. The study suggests that treating periodontal disease during pregnancy is safe, but standard periodontal care is not enough to prevent preterm births.

Water lilies inspire scientists to create large-scale graphene films

Researchers at Northwestern University developed a novel method to assemble graphite oxide sheets into continuous membranes, overcoming conventional thin-film processing limitations. This breakthrough enables the creation of high-quality graphene devices with high successful yields and potential applications in energy-related fields.

Study: Learning science facts doesn't boost science reasoning

A study of college freshmen in China and the US found that Chinese students knew more science facts than their American counterparts, but both groups struggled with scientific reasoning. The research suggests that educators must go beyond teaching science facts to boost students' reasoning ability.

Fluke 87V Industrial Digital Multimeter

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

Gene polymorphisms associated with increased cancer risk in alcohol drinkers

A comprehensive review of case-control studies links gene polymorphisms in alcohol dehydrogenase and aldehyde dehydrogenase enzymes to an increased risk of upper aerodigestive tract cancers. Polymorphisms ADH1B and ALDH2 are associated with a higher risk, but data on other variants is insufficient for meta-analysis.

Blue light destroys antibiotic-resistant staph infection

Researchers have discovered that blue light can effectively destroy two common strains of methicillin-resistant Staphylococcus aureus (MRSA) in a laboratory setting. The study found that high-dose photo-irradiation using 470-nm blue light was able to kill up to 90.4% of the bacteria, making it a promising potential treatment for MRSA i...

Stanford scientists identify key component in cell replication

Researchers at Stanford University School of Medicine have identified a protein called TCAB1, which is crucial for telomerase to repair the ends of chromosomes. This discovery may lead to new anti-cancer therapies by blocking the inappropriate expression of TCAB1 in human cancer cells.

Stem cell transplant reverses early stage multiple sclerosis

A clinical trial at Northwestern University's Feinberg School of Medicine found that patients with relapsing-remitting multiple sclerosis experienced significant improvements after receiving an autologous non-myeloablative haematopoietic stem-cell transplant. The disease stabilized in all patients, with 81% showing improvement.

Two rockets fly through auroral arc

A team from the University of Iowa launched two NASA rockets that flew through an auroral curtain, collecting data on the structural subtleties of the aurora. The ACES mission will provide insight into current models of aurora structure and help refine them.

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.

Skin color studies on tadpoles lead to cancer advance

Researchers at the University of East Anglia have identified a compound that blocks pigment cell movement, potentially preventing skin cancer. The study uses Xenopus Laevis tadpoles as a model organism due to their genetic similarity to humans.

Biophysical Society announces 2009 International Travel Award winners

The Biophysical Society has announced the winners of its international travel grants, chosen based on scientific merit and proposed presentation. The recipients include researchers from Argentina, Brazil, Croatia, India, Iran, Mexico, Portugal, Russia, Slovenia, South Africa, and United Kingdom.

Gene mutations increase risk for aggressive prostate cancer

Research from Albert Einstein College of Medicine found that Ashkenazi Jewish men carrying specific gene mutations have a higher risk of developing aggressive prostate cancer. The study identified three particular mutations, including BRCA1-185delAG and the mutated BRCA2 gene, which increased the risk of high-grade tumors.

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.

Umbilical cord protein analysis detects early onset infection

Yale researchers identified proteins associated with early onset neonatal sepsis, a stealthy bacterial infection linked to premature birth and death. The biomarkers found have diagnostic value for infection and inflammation, allowing for earlier identification of babies at risk.

Genome sequence shows sorghum's immense potential

The sorghum genome sequence reveals its drought-tolerant properties and offers tools to breed more resilient crops. The genetic code is also being used to improve biofuel crops like sugarcane and Miscanthus, enhancing the efficiency of cellulosic ethanol production.

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.

Stanford writes in world's smallest letters

Researchers encoded letters 'S' and 'U' in interference patterns formed by quantum electron waves, creating a tiny hologram that can be viewed with a microscope. The achievement paves the way for storing more information in less space, challenging the assumption of atomic limits

CDC recognizes UCSF's research as critical to HIV prevention

UCSF's Positive Choice: Interactive Video Doctor and Healthy Living interventions have been selected by the CDC for their effectiveness in reducing HIV risk behaviors. These programs address crucial aspects of living with HIV, including stress and coping, transmission risk behaviors, and adherence to medication regimens.

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.

Too much TV linked to future fast-food intake

Research followed over 2000 high- and middle-school children, finding that TV viewing times predict a poor diet in the future. Young adults who watched more than five hours of TV per day had lower intakes of fruits, vegetables, and whole grains, but higher intakes of fast food and unhealthy snacks.

Tom Cruise smile comes with a sunburn price

A recent study published in Photochemical & Photobiological Sciences found that UV light-enhanced tooth bleaching causes significant damage to skin and eyes, with fair-skinned individuals at greater risk. Additionally, the treatment was also found to exacerbate existing dental issues, such as exposed grooves on teeth.

Meta Quest 3 512GB

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

Serotonin brings locusts together

Researchers discovered that desert locusts have higher serotonin levels when behaving in a swarm-like manner, which may help identify individual neurons driving this behavior and lead to more effective pest control. Desert locust swarms can devastate crop yields, with 20% of the world affected by this species.

Chondroitin slows progression and relieves symptoms of knee osteoarthritis

A randomized, double-blind, placebo-controlled study found that long-term administration of chondroitin sulfate can prevent joint structure degradation in patients with knee OA. The study also showed significant reductions in joint space loss, pain, and adverse events in the treatment group compared to the placebo group.

Dinosaur fossils fit perfectly into the evolutionary tree of life

A recent study by researchers at the University of Bath and London's Natural History Museum found that dinosaur fossils match their evolutionary trees remarkably well. The study used statistical data from fossils of four major dinosaur groups to confirm the accuracy of current views on their evolution.

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.

New discovery may lead to new class of allergy drugs

Researchers identify eotaxin as a novel target for new class of allergy medications, which may help alleviate symptoms of asthma and other allergies. The study's findings could lead to breakthroughs in understanding the severity of allergic reactions and developing effective treatments.

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.

Genes may predict vascular malformation

Researchers discovered a link between mutated genes and vascular development, which could lead to classification and therapy for congenital blood vessel malformations. The study identified two key genes, Snrk-1 and Dusp-5, as playing crucial roles in angioblast formation and differentiation.

Is it possible to eradicate homelessness?

A new £692,000 research program will investigate why vulnerable people with complex needs become homeless and how to prevent it. The project aims to develop a greater understanding of homeless individuals who face multiple problems such as drug dependencies, mental health issues, and institutional experiences.

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.

Human DNA repair process recorded in action

A team of researchers at the University of California, Davis, has recorded and visualized the human DNA repair process using fluorescent microscopy. The study reveals key differences between human and bacterial DNA repair mechanisms, including the regulation of Rad51 protein's growth.

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.

Structure of enzyme against chemical warfare agents determined

A team of scientists has successfully determined the structure of DFPase, an enzyme from the squid Loligo vulgaris that can rapidly detoxify chemical warfare agents like Sarin. The study used neutron diffraction and provides essential information about the reaction mechanism of DFPase.

Marching to the beat of the same drum improves teamwork

A new study suggests that synchrony fosters cooperation, even when individuals have financial incentives to behave selfishly. Volunteers who participated in synchronized activities, such as walking in step or moving cups to music, were more likely to cooperate with others and report feeling part of a team.

AGU journal highlights -- Jan. 28, 2009

Researchers use MODIS data to detect natural oil slicks in the Gulf of Mexico, finding a higher occurrence than previously thought. Meanwhile, studies suggest freak waves may be responsible for shipwrecks in Japan's notorious wave-prone region, with modeling revealing a cascade process governing weather dynamics.

First gene discovered for most common form of epilepsy

Researchers have identified a new gene, ELP4, linked to Rolandic epilepsy, a common form of childhood epilepsy. The discovery supports a new theory about the causes of epilepsy and offers insights into other cognitive and behavioral disorders such as ADHD, speech dyspraxia, and DCD.

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.

Weight loss reduces incontinence for women

A six-month diet, exercise, and behavior modification program resulted in significant weight loss and reduced urinary incontinence episodes per week by nearly half. The study found that such programs can be an effective first-line treatment for overweight and obese women.

Sequencing of sorghum genome completed

The sorghum genome has been sequenced by an international team, providing insights into the crop's potential for drought resistance. The findings could help improve food crops for arid regions with expanding human populations.

Weight loss reduces incontinence in obese women, UCSF study shows

A study by researchers at UCSF found that behavioral weight-loss programs can significantly reduce urinary incontinence in overweight and obese women. Participants who lost an average of 17 pounds experienced a 47% reduction in incontinence episodes compared to those in the control group.