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Science News Archive February 2012


Page 27 of 30

AFER announces 2011 Genentech Fellowship recipients

The ARVO Foundation for Eye Research has awarded $40,000 fellowships to Balamurali K. Ambati and Stephen H. Tsang to conduct age-related macular degeneration (AMD) research. The fellowships aim to develop therapeutics and personalized medicine approaches for AMD.

Scientists chart high-precision map of Milky Way's magnetic fields

Researchers at the Max Planck Institute for Astrophysics have created a high-precision map of the Milky Way's magnetic field using radio observations from over 30 researchers and 41,000 measurements. The map reveals both large-scale and small-scale features of the Galactic magnetic field, including turbulence in the gas.

The complex relationship between memory and silence

A study published in Perspectives on Psychological Science suggests that silence about memories can lead to selective forgetting, where certain memories are more easily forgotten than others. For example, if someone discusses a happy memory but not an unhappy one, they may have trouble recalling the unmentioned sad memory.

In sub-Saharan Africa, a shorter walk to water saves lives

A new study by Stanford researchers found that decreasing the time spent walking to fetch clean water can help reduce under-five mortality rates and prevent nutrition-depleting diarrhea. Cutting walking time by just 15 minutes can lead to an 11% reduction in child mortality and a 41% decrease in diarrhea prevalence.

Apple iPhone 17 Pro

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NYU Courant researchers weigh methods to more accurately measure genome sequencing

A team of researchers at New York University's Courant Institute of Mathematical Sciences has developed a method to test the efficacy of genome sequencing technologies. The study, published in PLOS ONE, employed a feature-response curve procedure to evaluate the accuracy of various assembly algorithms and shotgun approaches. While some...

Making sense of addiction terminology

A new editorial aims to clarify drug and alcohol addiction terminology by defining current treatments' modes of action and targets. The authors suggest that a better understanding of these elements would aid in the development of more effective treatments, particularly for opioid and tobacco addictions.

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.

Study: Stroke victims recover much better after temporary stent procedure

A new stent procedure has shown remarkably positive results in how patients recover from strokes, with 56% of participants experiencing an excellent neurological outcome compared to 33% with traditional methods. The study also found a significant reduction in mortality rates among those who underwent the new procedure.

A new study shows how to boost the power of pain relief, without drugs

A new study found that when combining a placebo with a distracting memory task, participants experienced increased pain reduction without cognitive interference. This challenges the theory that the placebo effect relies on high-level cognitive functions like working memory and attention.

SAMSUNG T9 Portable SSD 2TB

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Heat and cold damage corals in their own ways, Scripps study shows

A Scripps Institution of Oceanography study reveals that corals exposed to cold temperatures suffer greater growth impairment and measurable damage compared to those subjected to heat. However, corals are able to adjust to cool conditions over time, whereas prolonged heat stress leads to severe bleaching and growth stoppage.

Hubble zooms in on a magnified galaxy

Astronomers use gravitational lensing to study a vigorously forming galaxy, revealing regions of intense star formation. The team aims to analyze these star-forming regions through spectroscopy to understand their formation mechanisms.

'First light' taken by NASA's newest CERES instrument

The CERES instrument has begun scanning Earth, providing a long-term record of the energy balance and helping scientists understand climate change. The satellite's data will aid in monitoring minute changes in the Earth's energy budget, which is critical for understanding how human activities impact the planet.

Studying butterfly flight to help build bug-size flying robots

Engineers at Johns Hopkins University are using high-speed video cameras to study butterfly flight and develop more agile micro aerial vehicles (MAVs) for reconnaissance and search-and-rescue missions. Their research reveals that changes in spatial distribution of mass associated with wing flapping play a crucial role in insect flight,...

NIH study uncovers probable mechanism underlying resveratrol activity

A new NIH study reveals that resveratrol's health benefits come from inhibiting phosphodiesterases (PDEs), not directly activating sirtuin 1. This finding may pave the way for resveratrol-based medicines and offer alternative treatments for diseases like type 2 diabetes, Alzheimer's disease, and heart disease.

Fluke 87V Industrial Digital Multimeter

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Bouquet bargains

A recent study by researchers at NESCent found that larger plant size can lead to bigger, more plentiful blooms, but accounting for overall size differences is crucial in detecting tradeoffs. The study tested three hypotheses and concluded that flower size-number tradeoffs are harder to spot due to various reasons.

Potential new treatment identified for leishmaniasis

A team of researchers at the University of Dundee has identified fexinidazole as a possible new treatment for visceral leishmaniasis, a disease affecting 500,000 people in Africa, Asia, and Latin America. The drug showed a greater than 98% rate of suppressing infection in mice, comparable to current treatments.

Davis Instruments Vantage Pro2 Weather Station

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High triglyceride levels found to predict stroke in older women

Researchers found high triglyceride levels strongly predict ischemic stroke in postmenopausal women, exceeding the risk associated with cholesterol levels. The study analyzed data from over 900 women who experienced strokes, revealing a nearly two-fold increased risk for those in the highest triglyceride quartile.

A battle of the vampires, 20 million years ago?

Scientists have discovered a 20-million-year-old fossil of a bat fly, which has been entombed in amber and preserved its details. The find reveals that bat flies have been parasitizing bats for at least half as long as the mammal group has existed.

Scientists coax shy microorganisms to stand out in a crowd

Researchers at the University of Washington have advanced a technique called metagenomics, allowing them to single out a marine microorganism and map its genome even though it comprised only 7 percent of a water sample. The resulting genome offers hints that Euryarchaeota might serve as a cleanup crew after diatoms bloom and die.

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.

Graphene electronics moves into a third dimension

Researchers at the University of Manchester have created a transistor that may prove graphene's potential as the next silicon for computer chips. The new device uses a vertical direction and exploits graphene's unique features to overcome current leakage issues.

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.

Plant power: The ultimate way to 'go green'?

Researchers are tapping into photosynthesis to efficiently produce highly valuable products, including biofuels and pharmaceuticals. This innovative approach could lead to a more sustainable future by utilizing sunlight as a renewable energy source.

Rearranging the cell's skeleton

Cell biologists have identified key steps in how small molecules alter a cell's skeletal shape and drive cell movement. By manipulating the cell membrane, researchers created ruffles that helped pull cells across surfaces, a process previously difficult to recreate.

The discovery of deceleration

Millisecond pulsars lose half of their rotational energy during mass-transfer process, explaining apparent age paradox and absence of sub-millisecond radio pulsars. This result is in agreement with current observations and helps resolve the 'turn-off' problem in stellar astrophysics.

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.

Intermittent exercise improves blood glucose control for diabetics

A recent study published in The Endocrine Society's Journal of Clinical Endocrinology & Metabolism found that intermittent exercise with low oxygen concentrations significantly improves glycemic control in patients with type 2 diabetes. Exercise under hypoxic conditions provides greater improvements than intermittent exercise alone.

Combination drug therapy urged to battle lung cancer

A recent study found that the STAT3 gene is activated in some non-small cell lung cancer cell lines by the JAK2 protein, which may not be effectively inhibited by drugs targeting specific mutations. This suggests a potential role for combination therapy to combat NSCLC driven by STAT3-JAK2 signaling.

Hand counts of votes may cause errors, says new Rice University study

A new study from Rice University and Clemson University found that hand counting of votes can result in error rates of up to 2 percent, emphasizing the importance of well-specified manual auditing procedures. The research also showed that division of labor among group counting members can help reduce errors.

Meta Quest 3 512GB

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Human immune cells react sensitively to 'stress'

Monocytes are extremely sensitive to reactive oxygen species (ROS), while macrophages and dendritic cells derived from monocytes are resistant due to their defective DNA repair mechanisms. This sensitivity may play a role in regulating the immune response and preventing excessive ROS production.

Elevated glucose associated with undetected heart damage

Researchers found a significant association between chronically elevated glucose levels and minute levels of troponin T, a blood marker for heart damage. The high-sensitivity test detected low levels of cTnT in 66% of the study population, suggesting potential pathways for diabetes-related heart disease.

Using plants to silence insect genes in a high-throughput manner

Researchers at the Max Planck Institute for Chemical Ecology have successfully silenced insect genes in a high-throughput manner using plant-mediated RNA interference. By targeting specific genes, such as CYP6B46, the scientists demonstrated that the gene silencing worked with high specificity and no collateral damage.

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 research confirms need for lung cancer testing

Different subgroups of non-small cell lung cancer exhibit distinct patterns of spread in the body, suggesting fundamentally different diseases. Targeted therapies have shown dramatic clinical responses in patients with ALK positive NSCLC, offering new hope for treatment.

Castaway lizards provide insight into elusive evolutionary process

Researchers found that genetic and morphological traits were influenced by both natural selection and founder effects in castaway lizards. The study shows how these mechanisms interact with each other, resulting in differences between populations adapting to new environments.

Young children exposed to anesthesia multiple times show elevated rates of ADHD

A recent study conducted by Mayo Clinic researchers has found that young children who are exposed to anesthesia multiple times before the age of three have a higher risk of developing attention-deficit/hyperactivity disorder (ADHD). The study, which utilized data from the Rochester Epidemiology Project, found that children with two or ...

Lecture or listen: When patients waver on meds

A new analysis of hundreds of doctor-patient visits found that physicians and nurse practitioners frequently use lecturing and ordering instead of engaging in open-ended discussions to address medication non-adherence. Problem-solving conversations were rare, even among patients who acknowledged lapses in adherence.

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.

Erratic heart rhythm may account for some unexplained strokes

Research suggests that erratic heart rhythms, particularly paroxysmal atrial fibrillation (PAF), contribute to about one-fifth of unexplained strokes. Patients with stroke of unknown origin may benefit from extended monitoring and treatment with medications like dabigatran and rivaroxaban.

Male and female behavior deconstructed

A UCSF team has identified genes that influence male and female behaviors, such as sex drive and nurturing behavior, which can be manipulated individually. The study suggests complex behaviors like autism may be broken down into component parts to better understand and treat disorders.

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.

Triglyceride levels predict stroke risk in postmenopausal women

A recent study published in Stroke journal found that high triglyceride levels are a stronger predictor of stroke risk in postmenopausal women than previously thought. Researchers analyzed data from over 90,000 women and discovered that those with the highest triglyceride levels were nearly twice as likely to suffer an ischemic stroke.

Identical twins reveal mechanisms behind aging

A study led by Uppsala University reveals that structural modifications of DNA are duplicated or lost more commonly in older individuals. This may explain the impaired immune system with age. The researchers found large rearrangements in blood cells of people over 60, as well as smaller changes in younger individuals.

Anemia may more than triple your risk of dying after a stroke

Research reveals severe anemia in stroke patients can lead to a higher risk of death, with patients experiencing increased mortality rates after six to twelve months. Anemia is measured by hematocrit levels, and moderate to mild cases also show elevated mortality risks.

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.