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Science News Archive 2011


Page 40 of 311

Attention and awareness uncoupled

A recent study using functional magnetic resonance imaging has found that attention, rather than awareness, modulates the activity in the primary visual cortex. This suggests that these two mental processes may be dissociated and affect nerve cells differently. The findings have implications for philosophy and psychology.

Giant planet ejected from the solar system

Researchers propose that Jupiter may have 'jumped' out of its orbit to avoid disturbing the inner solar system. The 'jumping-Jupiter' theory suggests one planet was ejected from the solar system, leaving four giant planets behind.

Using light, researchers convert 2-D patterns into 3-D objects

Researchers at NC State University have developed a method to convert 2D patterns into 3D shapes by heating pre-stressed plastic sheets under infrared light. Varying the width of black lines creates different hinge folds, enabling the creation of complex structures

Protein love triangle key to crowning bees queens?

A team of scientists at Arizona State University has made new discoveries about the role of insulin pathways and partner proteins in determining a honey bee's caste fate. They found that blocking certain proteins can force larvae to develop into workers, but also allowed them to develop into queens by providing hormone treatments.

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.

Radar gun catches predator shredding turbulence in fusion plasma

Researchers used a new microwave instrument to study the interplay between plasma turbulence and surface flows in tokamak plasas. They found that turbulent eddies are shredded by large surface flows, turning off turbulence. This equilibrium is crucial for achieving high thermal insulation in fusion experiments.

First large-scale study of pain reveals risk factors

A comprehensive clinical assessment has been developed to identify individuals at risk of developing jaw pain disorders. The UB researchers found that people who develop jaw pain disorders exhibit specific characteristics, including more trauma to the jaw, limitations, and noises in the jaw, headaches, and generally worse medical status.

Citrus indica Tanaka - a progenitor species of cultivated Citrus

Researchers from North Eastern Hill University investigate the karyomorphological data of Citrus species, revealing that C. indica has an intermediate asymmetry index value, making it a true progenitor of cultivated Citrus. This study supports the classification of three true species of Citrus: C. grandis, C. reticulata, and C. medica.

Apple iPhone 17 Pro

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

A new spin on understanding plasma confinement

Recent experiments in the DIII-D tokamak have shown that spinning plasma can prevent magnetic island formation, which reduces fusion power production. By applying torque to spin the plasma faster while minimizing stray magnetic fields, tokamak fusion performance can be raised.

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.

NASA's Hubble observes young dwarf galaxies bursting with stars

Astronomers have uncovered an extraordinary population of young dwarf galaxies brimming with star formation, forcing a re-evaluation of their understanding of galaxy evolution. These galaxies are estimated to be 9 billion years old and produce stars at rates 100 times faster than the Milky Way.

Sea change can forecast South American wildfires, UCI-led study finds

A new study predicts wildfire severity in South America by analyzing Atlantic and Pacific ocean temperatures, providing vital insights for conserving tropical forests. The method has been tested with striking accuracy, enabling officials to prepare for fire seasons three to five months in advance.

Researcher finds elderly lose ability to distinguish between odors

Researchers found that elderly individuals over 60 experience reduced specificity in olfactory sensory neurons, making it harder to differentiate between smells. This can lead to malnutrition and increased risk of poisoning due to impaired ability to detect spoiled food and toxic vapors.

Severe alcoholic hepatitis: An effective combination of 2 treatments

A new treatment combining corticosteroids and N-acetylcysteine improves survival rates for patients with acute alcoholic hepatitis by 35-40% within a month, compared to the conventional cortisone-based treatment. The study results show that this combination therapy is well-tolerated and offers a promising prognosis for severe alcoholic...

Tweaking a gene makes muscles twice as strong

Researchers create super-strong mice and nematodes by reducing natural inhibitor function, leading to denser muscle fibers and increased energy delivery. This breakthrough could lead to treatments for age-related or genetically caused muscle degeneration.

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.

Researching graphene nanoelectronics for a post-silicon world

Researchers at Rensselaer Polytechnic Institute have discovered that stacking graphene nanoribbons can significantly enhance its ability to transmit electricity, reducing the band gap and increasing efficiency. The study, published in ACS Nano, brings industry closer to realizing graphene nanoelectronics and potentially replacing coppe...

Astronomers find clouds of primordial gas from the early universe

Researchers found two clouds of primordial gas that match theoretical predictions, with a composition of mostly hydrogen and helium. This discovery challenges our understanding of how metals are distributed in the universe and provides new constraints on the modern cosmological explanation for element origins.

Violent passions -- jealous cleaner shrimp murder their rivals

A study on Lysmata amboinensis shrimp found that larger groups than pairs experience violent attacks and kills, with smaller groups remaining intact. Monogamous pairs emerge after aggression subsides, with reduced group sizes resulting in increased molting rates.

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.

Researchers find risk-taking behavior rises until age 50

Researchers found that willingness to take risks in competition increases until age 50, with men slightly more willing than women. The study of over 800 adults aged 25-75 showed a parallel trajectory for both genders across the lifespan.

Racial inequalities exist for kids with kidney disease

Children of minority races are less likely to get kidney transplants before they need dialysis, and blacks with no health insurance face a higher risk of death while waiting for a transplant. Certain racial groups have lower rates of preemptive transplantation and are more likely to die than others

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.

Results of the PARTNER Trial Cohort A cost effectiveness analysis reported

A new analysis of the PARTNER trial found that TAVR via the femoral artery is more cost-effective than SAVR for eligible high-risk patients, while transapical approach yields unattractive results from a health economic perspective. The study suggests that refinement of the transapical approach could improve outcomes and reduce costs.

U-M study will test for Alzheimer's risk

University of Michigan researchers will provide genetic testing and risk estimates for individuals with mild cognitive impairment. The study aims to evaluate the impact of health education and genetic testing on psychological adjustment and behavior changes.

Ocean temperatures can predict Amazon fire season severity

A new NASA-funded study predicts Amazon fire season severity using ocean temperature data, which amplifies human impacts and varies from year to year. The model successfully predicted the 2010 fire season's severity and spatial distribution.

Knocking out key protein in mice boosts insulin sensitivity

Researchers at UC San Diego and EPFL found that removing a regulatory protein called NCoR dramatically improved insulin sensitivity in mice. The study reveals a new role for NCoR in regulating fatty acid storage and glucose metabolism, which could lead to the development of targeted treatments for type 2 diabetes.

Apple MacBook Pro 14-inch (M4 Pro)

Apple MacBook Pro 14-inch (M4 Pro) powers local ML workloads, large datasets, and multi-display analysis for field and lab teams.

Under pressure: Ramp-compression smashes record

Researchers have achieved a record pressure of 50 megabars in a diamond experiment at the National Ignition Facility, replicating conditions believed to exist in super-Earths. The use of ramp-compression technique allowed for higher pressures than standard near-instantaneous shock-physics experiments.

For deep-sea cephalopods, 'switchable' camouflage saves the day

Two species of deep-sea cephalopods have the ability to rapidly switch between transparency and a dull red color as optical conditions change, providing an adaptive camouflage strategy. This 'switchable' camouflage is highly advantageous for survival in the unique environment of the deep sea.

Unexpected connection: Rotation reversal tied to energy confinement saturation

Researchers at MIT's Alcator C-Mod experiment have found a novel connection between spontaneous plasma rotation and global energy confinement. At low density, the two phenomena are positively correlated, but at higher densities, they become inversely related, with rotation reversal leading to saturated energy confinement.

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.

One molecule for muscle growth and insulin sensitivity

Two studies found that reducing NCoR in muscles increases exercise capacity and fat-burning, while reducing it in fat cells improves insulin sensitivity. The findings imply that limiting NCoR activity could be a potential treatment strategy for metabolic disorders.

NCAR wind forecasts save millions of dollars for Xcel Energy

The NCAR wind forecasting system has improved the accuracy of wind energy forecasts by 35%, allowing Xcel Energy to harness wind more effectively and save ratepayers millions of dollars yearly. The system uses cutting-edge computer models and real-time observations to provide high-resolution forecasts, updated every 15 minutes.

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.

Catching tokamak fastballs: Controlling runaway electrons

Researchers at DIII-D National Fusion Facility have developed a method to control high-energy runaway electrons in tokamaks, which can potentially damage interior surfaces. By applying rapid pre-programmed changes in magnetic control coils, scientists can move the electron beam away from interior surfaces and prevent damage.

IPAL-EM launches to improve palliative care in emergency medicine

The IPAL-EM initiative aims to integrate palliative care into emergency departments, reducing symptoms and anxiety while improving patient safety and satisfaction. By providing access to palliative care, the initiative seeks to improve quality of life for both patients and their families.

Non-coding RNA relocates genes when it's time to go to work

Researchers at UC San Diego School of Medicine discovered that non-coding RNAs TUG1 and NEAT2 relocate genes to activate their function in response to growth signals. This process provides a new understanding of the interaction between regulated genes and human diseases.

A light wave of innovation to advance solar energy

Tel Aviv University researchers have developed a new type of solar panel using nano-antennas that can convert a broader spectrum of light into electric current. This technology has the potential to improve efficiency and reduce costs, making it a viable option for green energy.

Aranet4 Home CO2 Monitor

Aranet4 Home CO2 Monitor tracks ventilation quality in labs, classrooms, and conference rooms with long battery life and clear e-ink readouts.

Einstein researchers discover key to cell specialization

Einstein researchers discovered a mechanism governing cell specialization, where a pair of proteins act as super regulators of existing ones. This finding has implications for cancer, stem cell research, and regenerative medicine, as it suggests that specific proteins can be turned on or off to create specialized cells.

December 2011 Geology highlights

The December 2011 Geology issue presents several studies. Researchers discovered microfossils in the Tayshir Formation, Mongolia, shedding light on ancient life forms. Additionally, a study investigated melt migration mechanisms, finding evidence for porosity waves in the sub-arc mantle of Kohistan Island Arc.

More fiber, but not necessarily less fat, good for teen diets

A study by Michigan State University found that a diet rich in fiber, but not necessarily low in saturated fat or cholesterol, is associated with a lower risk of heart disease and type-2 diabetes in teenagers. The research emphasizes the importance of including fiber-rich, nutrient-dense plant-based foods in teens' diets.

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.

Why do neurons die in Parkinson's disease?

Researchers discovered that genetic mutations causing hereditary Parkinson's disease cause mitochondria to run amok inside cells. Damaged mitochondria produce toxic compounds and fuse with healthy ones, leading to neuronal death.

Parkinsonian worms may hold the key to identifying drugs for Parkinson's disease

Dopamine-deficient C. elegans worms offer a promising new approach to identifying potential treatments for Parkinson's disease, with researchers able to test over 1,000 drugs per year. The 'motor switching' problem faced by people with Parkinson's can be replicated in the worms, allowing scientists to quickly identify effective therapies.

Results of the RIFLE STEACS clinical trial reported at TCT 2011

The study found that radial artery access was associated with significantly lower rates of bleeding and cardiac death compared to femoral artery access. This suggests that the transradial approach may be a preferable option for patients with ST elevation acute coronary syndrome.

Women see naked men differently too

A new study published in the Journal of Personality and Social Psychology found that focusing on someone's body can alter perceptions of agency and experience. Both men and women tend to see individuals as more sensitive but less competent when wearing revealing attire, which may have implications for work and academic settings.

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.

NRL's MIGHTI selected by NASA for potential space flight

The NRL-developed MIGHTI satellite instrument is part of the ICON mission to study the Earth's ionosphere and its impact on communications. The ICON mission aims to understand the extreme variability in the ionosphere, which can interfere with signals.

A 3-D way to release magnetic energy... fast!

Scientists at PPPL have discovered a new process that releases magnetic energy faster than expected by classical theories. The 3-D process involves the formation of high current ropes called flux ropes, which are ejected out of the reconnection region, leading to a sudden decrease in current density.

Lancet pneumonia study offers new hope for reducing No. 1 cause of child death

A new study published in The Lancet found that children treated at home for severe pneumonia by Pakistan's Lady Health Workers were more likely to recover than those referred to health facilities. Treatment failures occurred 50% less often in the experimental group, resulting in significant reductions in child mortality rates.

Effects of 'mini stroke' can shorten life expectancy

A new study found that having a transient ischemic attack (TIA), also known as a mini stroke, can reduce life expectancy by 20 percent. Patients experiencing a TIA have a high risk of early stroke and an increased risk of future problems that may reduce life expectancy.

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.