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Science News Archive 2010


Page 110 of 283

Resolving the paradox of the Antarctic sea ice

Researchers find that increasing Antarctic sea ice extent is due to stabilization of the upper ocean by increased precipitation, which reduces melting from both above and below. Climate models predict faster melting in the future, leading to a potential decrease in sea ice extent.

New understanding of the 'flight-or-fight' response

A new study published in The Journal of General Physiology reveals that HCN channels play a crucial role in regulating heart rate during stress. The research provides insight into the mechanisms behind the 'flight-or-fight' response, offering new understanding of this complex physiological process.

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.

Berkeley study shows ozone and nicotine a bad combination for asthma

A new study by Berkeley Lab researchers reveals that ozone can react with nicotine in secondhand smoke to form ultrafine particles, a potential threat to asthma sufferers. These particles become major components of thirdhand smoke and can carry and deposit harmful organic chemicals deep into the lower respiratory tract.

Health impact of Gulf Coast oil spill hazardous but improving

Health risks from Gulf Coast oil spill include toxic vapors, oil slicks, tar balls, and contaminated seafood posing respiratory problems, skin irritation, mental health concerns, and neurological impairment. The risk factors are improving as the oil leak has been stopped.

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.

Presidential election outcomes directly influence suicide rates

A new study finds that presidential election outcomes directly influence suicide rates among voters. In states where the majority supported the winner, suicide rates decreased, but more dramatically in states where the majority supported the loser, with a 4.6% lower rate for males and 5.3% for females.

Involuntary childlessness more detrimental than originally thought

A University of Gothenburg study reveals that involuntary childlessness has a significant negative impact on quality-of-life and wellbeing for both men and women who have undergone failed IVF treatment. Men often feel frustrated by unknown causes of infertility, while women experience bereavement-like emotions.

Gallbladder cancer may be linked to estrogens, says UH team

A study by the University of Houston team suggests that higher exposure to estrogens may be connected to gallbladder cancer. The research found that eliminating estrogens prevents tumor development in a specific animal model, leading to potential new drugs and understanding individual risks.

Mayo's 'smart' adult stem cells repair hearts

Researchers demonstrate that rationally guided human adult stem cells can effectively heal, repair, and regenerate damaged heart tissue. The study shows improved heart function recovery, reduced scars, and increased survival rate in mouse models with heart failure.

Sky & Telescope Pocket Sky Atlas, 2nd Edition

Sky & Telescope Pocket Sky Atlas, 2nd Edition is a durable star atlas for planning sessions, identifying targets, and teaching celestial navigation.

Detecting depression in caretakers of mentally ill adults

A diagnostic test of eight short questions can detect depressive thinking patterns in women who care for an adult family member with a serious mental illness. The test has been found valid in different groups and cultures, and its successful completion can lead to prevention of serious depressive illness.

People who cannot escape a system are likely to defend the status quo

A recent study published in Psychological Science discovered that individuals who face restrictions on emigration tend to rationalize their country's system and justify its flaws. This reaction is linked to feelings of system inescapability, particularly among those experiencing poverty.

Scientists reveal new targets for anti-angiogenesis drugs

Researchers discovered that galectin-3 promotes angiogenesis by binding to specific cell-adhesion proteins, suggesting potential therapeutic targets. Targeting the protein with inhibitors significantly reduced angiogenesis in mice, offering new approaches for treating diseases caused by excessive blood vessel growth.

Fittest hepatitis C viruses infect transplanted livers

Researchers found that only a subset of pre-transplant HCV viruses can infect the new liver, with these viruses having mutations in their surface protein that evade the immune response. This discovery may lead to new ways to prevent reinfection after liver transplant.

Apple iPhone 17 Pro

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

UV-B treatment may improve psoriasis and vitamin D levels

A recent study found that narrowband UV-B treatment can increase serum levels of vitamin D in patients with psoriasis while clearing the condition. The study also showed significant improvements in psoriasis severity scores and dermatology-related quality of life.

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.

Study suggests boys and girls not as different as previously thought

A recent study by Michigan State University psychologist Jennifer Watling Neal found that the difference in peer group sizes between boys and girls disappears by the eighth grade. As children get older, their interactions with members of the opposite sex increase, leading to more similar-sized peer groups for both genders.

Nanoscale DNA sequencing could spur revolution in personal health care

A team of researchers at the University of Washington has developed a method for rapid and cost-effective DNA sequencing using nanotechnology, paving the way for personalized medicine. The new technique has the potential to provide detailed genetic information for specific conditions and diseases.

Grant will fund professional development for teachers in Southern California

A $1 million grant from the University of California, Riverside Extension will provide $30,000 professional development grants for teachers in Riverside, Orange, San Diego, and Imperial counties. The grants aim to support sustained professional development, which is increasingly difficult due to budget cuts by California school districts.

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.

August 2010 Lithosphere highlights

This article explores various geological phenomena, including the origin of rhyolites from South Mountain, Pennsylvania, growth faults in the Kaiparowits Basin, Utah, and extension of the Anaconda metamorphic core complex. The studies provide new information on volcanic magmas, tectonic deformation, and Earth's crust behavior.

VCU Massey research finds new link between inflammation and cancer

Researchers at VCU Massey Cancer Center have discovered a new link between chronic inflammation and cancer, highlighting the importance of sphingosine-1-phosphate (S1P) in regulating inflammation. S1P is found to be a missing cofactor required for TRAF2's activity, which controls inflammation and cancer.

Reminding health-care staff to remove catheters reduces infections by half

A study published in Clinical Infectious Diseases found that reminder systems encouraging prompt removal of urinary catheters reduced CAUTIs by 52%. The researchers suggest that low-cost interventions like nurse-empowered catheter stop orders could be effective in reducing infections. Hospitals can implement these strategies to improve...

Celestron NexStar 8SE Computerized Telescope

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

Rhetoric, framing efforts have little influence in same-sex marriage debate

A study by Indiana University researchers found that beliefs and values held sway over rhetoric in the debate about legalizing same-sex marriage. The findings suggest that framing efforts may have limited impact on public opinion, while emphasizing the importance of addressing key issues related to same-sex families.

Repairing spinal cord injury with manipulated neural stem cells

A team of researchers has developed an approach to repairing spinal cord injuries using manipulated neural stem cells. In a mouse model, the cells were combined with valproic acid and resulted in impressive restoration of hind limb function. Further work is needed to determine if this approach can be used in human patients.

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.

JCI online early table of contents: Aug. 16, 2010

Neural stem cells can repair damaged spinal cords by promoting nerve cell generation, restoring hind limb function in mice. Vitamin D may help prevent allergic bronchopulmonary aspergillosis in cystic fibrosis patients.

SSRIs may pack more punch at the cellular level than believed

Research suggests SSRIs affect more than one cellular process, including phospholipid membranes and vesicle trafficking, in yeast cells. This discovery could lead to new therapies and explain why different people respond differently to the same medication.

High definition diagnostic ultrasonics on the nanoscale

Researchers have developed revolutionary ultrasonic transducers that can generate and detect ultrasound at scales a thousand times smaller than conventional ultrasonics. These tiny devices can be used to perform intracellular ultrasonics, produce high-frequency ultrasounds smaller than visible light wavelengths.

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.

Researchers develop MRSA-killing paint

A new coating, combining carbon nanotubes with the natural enzyme lysostaphin, has been created to safely eradicate MRSA from surfaces. The coating is effective, selective and stable, and does not rely on antibiotics or leach chemicals into the environment.

Springer journal article wins American Psychological Association award

A Springer journal article has won the prestigious George A. Miller Award for its innovative study on the impact of environmental factors on human behavior. The award recognizes outstanding recent articles on general psychology and highlights the importance of interdisciplinary research in understanding human behavior.

Blood stem cell, leukemia link illuminated in UCSF-led study

A UCSF-led team discovered a key reason why blood stem cells are prone to developing genetic mutations that can lead to adult leukemia. They found that quiescent blood stem cells use an error-prone DNA repair mechanism, which can result in chromosomal instability and contribute to hematopoietic abnormalities.

Fluke 87V Industrial Digital Multimeter

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

Researchers identify potential new target for ovarian cancer

The study found that depleting SIK2 from ovarian cancers sensitized the cells to paclitaxel, making it more effective in stopping cancer growth. Levels of SIK2 protein are increased in approximately 30 percent of ovarian cancers and associated with poorer survival rates.

Newly identified RNA sequence is key in microRNA processing

Researchers at Tufts University School of Medicine have discovered an RNA sequence that promotes increased numbers of specific microRNAs, which regulate cell growth and stress response. This finding provides new insights into the links between miRNA expression and disease, including heart disease and cancer.

Disturbances in certain genes play a role in autism

A recent study published in Nature has found that certain genetic disturbances contribute to autism. The research revealed that Copy Number Variants (CNVs) are over-represented in individuals with autism. Furthermore, abnormalities in genes related to synapse development have been linked to the origin of autism.

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.

Studies pinpoint key targets for MRSA vaccine

Two studies identify key targets for a new MRSA vaccine, targeting protein A to evade the immune system and clotting factors to disrupt tissue-damaging mechanisms. This approach shows promise in reducing virulence and providing lasting immunity against drug-resistant staph infections.

Genes associated with aggressive breast cancer

Researchers at the University of Gothenburg have identified 12 genes linked to aggressive breast cancer, which could lead to more reliable prognoses and better treatment strategies. The study found that these genes are associated with an increased risk of tumor progression, cell growth, motility, and development.

Mount Sinai pioneers new cardiac imaging device

The Mount Sinai team has developed a way to visualize coronary artery plaques using multi-color computed tomography (CT), which will lead to better and earlier diagnosis of cardiovascular disease. By harnessing high-density lipoproteins (HDL) and injecting gold particles into mice, researchers were able to see the location of vulnerabl...

IBMT meditation found to boost brain connectivity

Research published at the University of Oregon found that 11 hours of integrative body-mind training (IBMT) meditation training induces structural changes in brain connectivity, particularly in the anterior cingulate cortex. This brain area is linked to self-regulation and behavior control.

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.

Patients with diabetes may need fewer medications after bariatric surgery

Patients undergoing bariatric surgery showed significant reduction in diabetes medication use, with over 80% eliminating medications one year post-surgery. The study suggests that bariatric surgery may lead to improved glucose control and lower healthcare costs for obese patients with type 2 diabetes.

IBEX spacecraft finds discoveries close to home

The IBEX spacecraft has mapped interactions between the solar wind and Earth's magnetosphere, revealing a chaotic pileup of charged particles along the magnetopause. The study provides new insights into the tenuous nature of Earth's outer exosphere and its interaction with the solar wind.

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.

Breakthrough gene therapy prevents retinal degeneration

Researchers at Tufts University develop nanoparticles to deliver therapeutic genes to the retina, delaying onset of eye disease and preserving vision. The treatment, using a gene for GDNF, shows temporary but significant protection against photoreceptor cell death.

Breaking the cycle: New target for treatment of ovarian cancer

Researchers have discovered a protein called Salt Inducible Kinase 2 (SIK2) that plays a key role in regulating cell division and may be an attractive target for treating ovarian cancer. Combination therapies targeting different phases of the cell cycle are highly desirable for optimal cancer treatment.

Homecare after hip surgery in seniors increases survival rate

A Canadian study published in CMAJ found that home care after hip surgery in seniors significantly increases survival rates. The study of 11,326 patients aged 65 and older revealed that those who received home care were 43% less likely to die within three months of the procedure.