Articles tagged with Fluids
Neuroscientists at the University of South Florida have developed a method to regulate eye pressure, which is sufficient to cause and explain glaucoma. The new technique enables direct knowledge and control of eye pressure, removing experimental variability and enabling systematic studies.
Scientists from China's top research institutes discovered the novel coronavirus responsible for the Wuhan pneumonia epidemic through next-generation sequencing and bronchoalveolar lavage fluid samples. The virus is 99.8-99.9% similar among all patients' samples, closely related to bat SARS-like CoVs.
Researchers have discovered that the glymphatic system goes awry during a stroke, promoting brain cell drowning and swelling. This finding may lead to novel interventions to reduce stroke severity and improve outcomes.
Researchers at Emory University found that mixing different molecular sizes of polymers within a solution increases the ability of a thin film to stretch without breaking. This discovery holds implications for improving industrial processes like oil flow through pipes and foam clearance in streams and rivers.
Jesse Chan, a computational and applied mathematician at Rice University, has received a five-year NSF CAREER Award to develop new technologies for reliable simulations of fluid flow. The grant will support his research on developing stable numerical methods for high-fidelity simulations.
Scientists studied the behavior of viscoelastic fluids interacting with tiny structures called cilia. They found that fluid elasticity drives patterned movement of cilia, but only under specific conditions. Future research aims to develop new biological models and understand the dynamic movements within cells.
A team of international researchers has discovered a new phenomenon where partially miscible liquids deform the liquid-liquid interface. This finding is significant for oil recovery and CO2 injection processes, as it challenges traditional understanding of fluid dynamics in such systems. The study's results have implications for improv...
Researchers analyzed 38 liquid samples from first cases of EVALI in New York State and found vitamin E acetate as a major diluent in 64% of samples. No unknown compound linked to EVALI was found in nicotine-containing liquids.
Researchers at the University of Ottawa have found evidence that slow earthquakes are related to dynamic fluid processes at the boundary between tectonic plates. The team used a technique similar to ultrasound imagery and analyzed rock properties to confirm that fluid pressures fluctuate during an earthquake cycle.
Researchers developed self-moisturising smart contact lenses to tackle dry eye syndrome, a common problem associated with contact lens wear. The new system uses electroosmotic flow to maintain moisture levels, powered by biobatteries and showing promise for future applications.
A new study published in Hypertension found that reducing sodium intake decreases thirst and urine volume, but does not affect metabolic energy needs. This results support the traditional notion that decreasing sodium intake is critical to managing hypertension.
Grasshoppers adjust their cardiovascular and respiratory activity in response to gravity, with mechanisms similar to those found in vertebrates. The study reveals that insects have functional valves and can control fluid flow to prevent blood pooling in the brain.
Researchers developed a technique for handling tiny, soft particles using precise fluid flows, allowing them to test the physical limits of these particles. The technique, known as the Stokes trap, was used to study the dynamics of vesicles and their deformation under different flow conditions.
A team of mathematicians has discovered a new phenomenon that generates a fluidic force capable of moving and binding particles immersed in density-layered fluids. This breakthrough offers an alternative to previously held assumptions about particle accumulation in lakes and oceans.
A miniaturized tooth system, called a 'tooth-on-a-chip,' mimics a human molar to study how teeth respond to dental materials and bacteria. The device could lead to more effective cavity fillings that last longer and work better for each patient.
Researchers at Brigham Young University have created a new method called fluid carving to speed up the animation process for fluids. This technique allows animators to tweak and change animations on the fly without having to re-simulate entire sequences.
Researchers found that specific brain structures, including the parahippocampal cortex and caudate nucleus, are linked to improved fluid intelligence in individuals. These brain attributes distinguish people who benefit from targeted training from those who do not.
Research from Johns Hopkins University found that chemical herders can amplify strong breaking waves, dispersing oil slicks into the water column. This makes effective burning difficult in open oceans, but less effective when combined with weaker waves.
Scientists explore how fire ants build rafts to respond to changes in their environment during floods. The ants' ability to sense and adjust to fluid forces enables the formation of durable and safer rafts.
Scientists have found two types of movement in nucleoli that contribute to healthy cellular function and may disrupt disease, including cancer. The research sheds light on the forces responsible for maintaining cellular integrity without membranes.
Researchers used dance to convey the principles of fluid mechanics by creating a 'physics-constrained improvisation.' The goal is to produce an educational video that demonstrates flow past a cylinder at varying Reynolds numbers.
Researchers from Oklahoma State University and University of Nebraska-Lincoln have discovered that low-frequency sounds are emitted before tornado formation. These infrasound signals can be detected hours or even days in advance, providing potential warnings for severe weather events.
Scientists are testing a magnetically-actuated fluidic valve to reduce bleeding in trauma patients. The system uses an injectable magnetorheological suspension and externally placed magnets to create an obstruction, halting blood loss and stabilizing blood pressure. This could potentially extend survival time by at least 30 minutes.
Researchers say Jupiter's Great Red Spot has not changed in size or intensity despite shrinking clouds. The flaking of familiar vortex is considered a very natural state and not an indication of the spot's demise.
Researchers studied the effects of a baseball's wake on its movement towards home plate. A stable seam position can create a pressure gradient that forces the ball downward or upward, left or right. The study highlights the potential for pitchers to manipulate the ball's trajectory and speed using this technique.
Scientists studied how environmental conditions affect archery accuracy and discovered that the best feather size depends on wind conditions. The research aims to provide a more accurate understanding of the physics behind optimal arrow design.
Researchers at Cornell University and Virginia Tech found that shaking the head to free trapped water in the ear canal can cause brain damage in small children, due to acceleration of up to 10 times gravity. A solution using liquids with lower surface tension, such as alcohol or vinegar, may help remove water without causing harm
Researchers suggest a thermally induced fluid mixing approach could improve the delivery of anti-vascular endothelial growth factor agents to target tissue. This technique may reduce the amount of drug injected into the vitreous and increase effective treatment outcomes for patients with macular degeneration.
Researchers Chris Roh and Morteza Gharib found that honeybees can harness the power of their wetted wings as hydrofoils to propel themselves forward. By generating a net horizontal momentum imparted to water, bees overcome drag forces and achieve efficient locomotion on water's surface.
Researchers at KAUST found that under certain conditions, bubbles or droplets suspended in liquid can bounce off each other due to interface mobility, leading to slower coalescence and unexpected behavior.
Researchers at the University of Texas at Austin propose a chemical perspective to understand fracture patterns, which can influence oil and gas production. By analyzing mineral coatings and fluid reactions, scientists may be able to tease out processes that drove fracture formation.
A 16-year-old boy developed severe lung inflammation after vaping, leading to respiratory failure and prolonged hospitalization. The trigger was likely an exaggerated immune response to a chemical in the e-cigarette fluid, highlighting the potential risks of e-cigarettes.
A team of computer scientists presents a novel multi-scale framework to simulate complex fluid-strand interactions, enabling realistic animations in visual effects. The method accurately models the complexity of fluid-strand dynamics across multiple scales, from thin strands to bulk fluids.
Researchers analyzed extensive video of Pollock at work to understand his technique, which avoided coiling instability through a combination of high hand speed and short paint height. This discovery challenges previous theories on the creation of his iconic paintings.
Researchers found that impurities swept away in deeper water decrease in size with surface elasticity, while counterflows cancel out fluid movement. In shallow water, the boundary becomes blurred, revealing new processes in well-studied physics experiments.
A team of researchers has identified a fingerprint of oxidizing fluids in ancient subducted oceanic crust found on the Greek island of Sifnos. The discovery, published in Nature Geoscience, reveals that garnet crystals can preserve zonation of iron isotopic composition from early formed core to later forming rims.
Researchers at Northwestern University have developed a new way to pre-program microfluidic devices, allowing for smart, autonomous behavior without external components. This breakthrough could enable the creation of portable, wearable technologies for applications in medicine, energy, and space exploration.
A study led by UC San Francisco has found antibodies against enterovirus in the spinal fluid of nearly 70% of AFM patients, but not in non-AFM patients. This evidence suggests that AFM is caused by an enterovirus invading and impairing the central nervous system.
A team of researchers is working on understanding the agility of hummingbirds to develop robotic systems that can mimic their complex escape maneuvers. By studying the aerodynamics, perception, motion planning, and control of hummingbird flight, the team hopes to create robots that can achieve high agility in fluid environments.
Researchers developed nontoxic, biodegradable viscoelastic carrier fluids to enhance fire retardant retention on wildfires-prone vegetation. Treating high-risk locations with these fluids may help prevent wildfires from starting during peak season.
Researchers at Kobe University have identified the chemical makeup of newborn babies' head odors, shedding light on their importance in mother-baby recognition. The study found that these odors can be used to distinguish between individual babies and are stronger in the first few days after birth.
The study highlights the importance of zeta potential in colloid surface chemistry and its effect on dispersion stability. The Navier boundary condition, considering relative velocity, is applied to particles with hydrophobic surfaces, leading to increased electrophoretic mobility and sedimentation potential.
A study found high levels of pollutants, such as industrial fluids and mercury, in the blubber and skin of English Channel dolphins. The levels of pollutants were similar to those previously described for bottlenose dolphins in other contaminated areas.
Researchers at the University of Bern have been awarded prestigious starting grants for their innovative projects on digital 3D models and fluid-rock interactions. The €1.5 million AlgoHex project aims to develop algorithms for automatic hexahedral mesh generation, while the €2 million PROMOTING project seeks to model fluid pathways in...
Researchers at Johns Hopkins have developed a universal screening approach for vaginal microbiota transplantation (VMT) donors to ensure only beneficial microbes are transferred. The pilot study found that 35% of participants might be eligible VMT donors, and the success rate may depend on a small number of willing 'super donors'.
A new study suggests that marathon runners are at risk of acute kidney injury (AKI) due to fluid and salt losses, rather than core body temperature. Researchers found that managing fluid volume and salt losses with a personalized regimen during training may help reduce the incidence of AKI.
Researchers at the University of South Florida have identified key signaling pathways involved in lymphatic valve development and maintenance. The study suggests targeting these pathways may one day be a viable therapy for patients with lymphedema, a debilitating disease characterized by chronic swelling and fluid buildup.
A new study published in Seismological Research Letters has found that a series of small earthquakes in Surrey, UK, were not triggered by nearby oil extraction. The quakes, which occurred between April 2018 and May 2019, were found to have moved ancient faults horizontally, indicating natural causes.
A team of researchers has discovered a previously unrecognized mechanism that accelerates cystogenesis in polycystic kidney disease (PKD), leading to rapid cyst growth and kidney failure. The study suggests that increasing water intake and avoiding certain foods may slow the progression of ADPKD.
Researchers discovered that slow slip events can arise with rate-strengthening friction, which produces stable sliding. The team found that changes in poroelastic pressure reduce friction, leading to a slow slip event.
A team of scientists developed a technique to coat low-cost paper with a liquid-infused polymer layer, creating a portable lab for field laboratory tests. The coated paper performed significantly better than uncoated paper in terms of fluid delivery and accuracy.
Researchers at the University of Cambridge found that synovial fluid from osteoarthritic patients can directly excite sensory nerves, producing pain. The study provides new insights into the mechanisms of osteoarthritis and may lead to the development of more effective treatments.
Researchers at Caltech have designed a method to study and manipulate the cytoskeleton in test tubes, shedding light on how cells control movement. By using light-activated proteins, they can control when and where asters form, allowing for the development of new tools for molecular biology and chemistry.
Researchers found that stony corals Porites astreoides grow more slowly under acidic seawater conditions, indicating a limit to their adaptation to climate change. The study used natural laboratory settings off the east coast of Mexico to investigate coral growth in response to low pH and high dissolved carbon content.
Researchers found that lung lining fluid from older adults is more prone to dysfunction, allowing bacteria to infect and grow within macrophages. The study suggests that interventions targeting the lung mucosa's oxidative status may help make elderly individuals more resistant to respiratory infections.
Researchers at UT Health San Antonio found that higher doses of spironolactone can prevent dialysis in selected heart failure patients who are not responding to conventional diuretics. The study showed significant improvement in urine output and breathing, suggesting potential for avoiding dialysis
Researchers developed a model forecasting earthquake hazards in Oklahoma due to fluid injection, highlighting the importance of pore pressure diffusion and poroelastic stresses. The study found that mandatory reduction in injection volumes substantially reduced earthquake probability in western Oklahoma but not central Oklahoma.
Researchers at Arizona State University have developed a method to predict seismic activity from wastewater disposal, which can help the energy industry manage injection-caused earthquakes and reduce risks. The team's physics-based framework successfully reproduces the distribution of actual earthquakes by frequency, magnitude, and time.
Researchers at Imperial College London used supercomputers and graphics processors to simulate turbulent fluid flow and solve a longstanding question about disturbance dissipation. Their results lead to the development of new empirical models for turbulence, improving engineering designs in fields like wind turbines and Formula 1 cars.
A portable, noninvasive fluid monitoring device has been developed using nuclear magnetic resonance technology, providing accurate measurements of leg fluid buildup in patients with end-stage kidney disease. The device's portability and ease-of-use could enable clinicians to track fluid buildup at the bedside, improving patient care.