Articles tagged with Feet
A new study on Megalodon's reproductive biology sheds light on its growth and life expectancy. Researchers found that the shark gave live birth to babies larger than most adult humans, which likely fed on unhatched eggs in the womb.
Researchers tested mask materials' effectiveness in blocking droplets carrying coronavirus. While masks blocked most droplets, distances under 6 feet still allowed many to escape, posing a risk of illness. Masks can offer protection but not complete protection when combined with distancing.
Researchers have invented a hinge that allows large Army quadrotors to climb higher in seconds, improving agility and control authority. The innovation reduces thrust response time by 30%, enabling quadtors to reach the rooftop of a two-story building in as little as two seconds.
A study published in PLOS ONE found that patients with rheumatoid arthritis in remission display significantly higher temperatures in the forefoot regions compared to healthy adults. The research used thermal imaging to analyze temperature patterns in over 31 patients and more than 52 healthy individuals.
A new study documents bonefish diving 450 feet deep to spawn, a rare behavior in shallow water fish. The research provides crucial information for conservation efforts, informing techniques used to rear captive spawned bonefish larvae and better focus habitat conservation.
Researchers have developed an AI-based algorithm called OxyGAN to accurately measure tissue oxygenation from single snapshots. This approach uses a conditional generative adversarial network to learn realistic output images and determine correct reconstructions for given input data, demonstrating robustness in measuring oxygen levels.
Researchers found that socks coated with zinc oxide nanoparticles significantly reduced bromodosis and pitted keratolysis, two common conditions causing smelly feet. The study demonstrated the antibacterial efficacy of ZnO-NPs, making it a promising compound for textile applications.
Fossils found in Antarctica reveal the largest individuals of an extinct group of seabirds, which lived for up to 60 million years, dwarfing today's largest bird. The discovery sheds light on bird evolution and highlights the diversity of Antarctic birds during a warmer climate 50 million years ago.
A team of Penn State researchers suggests considering uncertainties when deciding how high to elevate houses in river flood zones. By looking at the range of possible outcomes, decision makers can improve their choices, reducing both the probability of flooding and net costs.
The OSIRIS-REx mission successfully collected samples from the surface of asteroid Bennu, with the sampling head touching down within three feet of the targeted location. The majority of sample collection occurred within the first 3 seconds, and the spacecraft spent approximately 5 of the 6 seconds of contact collecting surface material.
Researchers found a warming trend in the deep sea, with temperature fluctuations detectable at depths of up to 4,757 meters. The increase in temperatures is consistent with global climate change, but more research is needed to understand its causes.
Researchers have verified the closest cousins of a semi-aquatic mouse thought to be extinct, including two new species discovered through DNA analysis and physical trait comparisons. The findings reveal that these mice are long-legged, use their whiskers to hunt aquatic insects, and have unusually large brains.
A new study finds that Megalodon's estimated body length of up to 15 meters exceeds the general size limit for non-planktivorous sharks, which typically reach 7 meters. The research proposes live-bearing reproductive strategy and cannibalistic egg-eating behavior as possible causes for gigantism in lamniform sharks.
A computational study of Euparkeria capensis reveals a 'mosaic' of functions in its hindlimb, shedding light on the evolution of locomotion in archosaurs. The fossil's unique hip structure suggests it could have assumed an upright posture, despite conflicting evidence from its ankle joint.
Researchers at the University of Alberta have found a way to accelerate nerve regrowth in trauma patients by three to five times, leading to better outcomes. The treatment, known as conditioning electrical stimulation (CES), involves electrically stimulating nerves before surgery, causing them to regenerate faster.
Researchers found NYC residents are 4 times more likely to frequent stores with 6 feet of distancing. The study also revealed a preference for stores with mask-wearing, although this may change in future studies.
A new study led by IU School of Medicine aims to identify a biomarker that predicts wound recurrence in patients with diabetic foot ulcers. The goal is to develop an advanced approach to manage these wounds, potentially decreasing amputation rates nationwide.
The George Mason University Libraries are preserving the papers of James M. Buchanan through a National Endowment for the Humanities grant. The collection includes correspondence, publications, and other materials that chronicle Dr. Buchanan's life and academic career.
Researchers developed a new mathematical model that incorporates environmental factors into predicting respiratory virus transmission, highlighting the importance of weather conditions on droplet spread. The model suggests that social distancing measures may not be sufficient to prevent transmission without masks in humid climates.
Researchers used flow visualization to test various facemask types and found that well-fitted homemade masks with multiple layers of quilting fabric were most effective in reducing droplet dispersal. Uncovered emulated coughs traveled significantly farther than the recommended 6-foot distancing guideline.
Researchers from Staffordshire University found that optimised cushioning in diabetic footwear can significantly reduce plantar pressure, leading to ulcers and painful complications. The study used made-to-measure 3D-printed insoles to change the stiffness of the sole, finding a clear relationship between BMI and optimal stiffness.
Research models show that repeated coughing can degrade face mask efficiency by allowing more droplets through. Even when worn, masks can still let out droplets up to 1 meter away during mild coughing.
Researchers found surprisingly high growth rates for Leptoseris species at depths of up to 360 feet, with some colonies growing nearly 1 inch per year. This challenges the assumption that deep corals grow slowly due to low light levels.
Researchers created flexible feet using coffee grounds and structures inspired by nature, allowing robots to walk up to 40% faster and grip better on various terrains. The new design outperforms traditional robot feet in adapting to natural environments.
Researchers developed a device that circulates cool water into pressure-relieving insoles to reduce foot temperature and diminish the risk of tissue breakdown. The device, TAPMARI, was tested in eight volunteers and showed promising results, potentially preventing thousands of amputations worldwide.
Researchers discovered that even a gentle breeze can propel saliva droplets up to 18 feet in just 5 seconds. This finding has significant implications for health and safety distance guidelines and the transmission of airborne diseases.
A UCF team is exploring a novel approach to reduce COVID-19 transmission by making saliva heavier and stickier using candy or corn starch. The goal is to create a simple cough drop that can help sneeze and cough particles fall rather than float in the air, reducing transmission distance.
A novel neural circuit has been discovered in rats that responds to the sound of silence, triggering defense responses. The study found that a specific combination of brain regions, including those involved in sound processing and emotional responses, are necessary for rats to freeze in response to silent danger.
A study examines phalangeal curvature in a human-raised chimpanzee, revealing similar curvature to wild chimps but not humans. Genetic factors, not mechanical loading, are the main drivers of this curvature in chimpanzees and likely other arboreal primates.
Researchers found that regulatory mutations in TBX5 and PITX1 genes cause foot feathering in both domesticated breeds of chickens and pigeons. This study demonstrates a remarkable convergence in the evolution of this trait across species, suggesting that favored mutations have been spread through strong phenotypic selection.
Researchers found that genetic variants at Tbx5 and Pitx1 contribute to foot feathering in both chickens and pigeons. A 17,000 base-pair long deletion near Pitx1 removes the same exact region in both species, indicating similar mutations and molecular pathways.
The Calusa kingdom relied primarily on fishing due to the watercourts, which were built around A.D. 1300 and served as short-term holding pens for fish before consumption or preservation. The structure's design required an understanding of daily and seasonal tides, hydrology, and the biology of various fish species.
A study published in Scientific Reports found that observing scrambled body stimuli while moving the whole body produces a sense of possession of specific body parts, but not the entire body. Spatial arrangement plays a crucial role in creating an illusion of whole-body ownership.
Researchers analyzed the skull of 'Little Foot', a 3.67 million-year-old Australopithecus species, to understand its lifestyle. The study found that 'Little Foot' had head movements different from modern humans and could climb trees regularly.
A new study by researchers at Anglia Ruskin University and the University of Cambridge has found that gorillas recognize and respect 'ownership' of specific regions, influencing their movement patterns and behavior. The discovery provides important clues for understanding human evolution and social cooperation.
Researchers developed a rod-shaped DNA motor that rolls at speeds up to 100 nanometers per minute, breaking previous records. The motor uses RNA fuel and can travel the length of a human stem cell in two or three hours.
Researchers discovered that the transverse arch (TA) contributes significantly to the stiffness of the human foot, with half of its stiffness attributed to this structure. The study's findings have implications for understanding flatfoot disorder and the design of robotic feet.
A Yale-led team of researchers discovered that the transverse arch in the human foot, not previously studied, is responsible for nearly half of the foot's stiffness. This finding challenges conventional thinking about the human foot's structure and evolution.
The study found that the transverse arch is a bigger source of foot stiffness than previously thought, and it may have evolved to become human-like over 3.5 million years ago. The researchers used mechanical mimics and fossil record analysis to support their findings.
Researchers have made a groundbreaking discovery in understanding the subtalar joint, revealing its mechanics and potential for improved design of joint replacements. The study used standing CT scans and digital volume correlation to analyze the joint's motion under full weight-bearing.
A study found high levels of toxic metals in a Himalayan glacier dating back to the late 18th century, indicating human activity's impact on the atmosphere began during the Industrial Revolution. The research suggests that coal emissions from Europe traveled over 6,400 miles to contaminate the glacier.
Researchers at USC Viterbi School of Engineering discovered how sea stars synchronize their motion through a global directionality command and localized responses to stimuli. This decentralized nervous system can inspire more efficient robotics systems with hierarchical learning and communication.
A new study found that nearly 80% of bike-share usage comes from areas within 1,000 feet of stations, and a 10% increase in bike availability increases ridership by more than 12%. Increasing bike availability is key to maximizing bike-share ridership.
Researchers at Anglia Ruskin University found that people with impaired vision lifted their lead foot higher but less quickly over obstacles, increasing their risk of falls. This pronounced gait also led to increased anxiety and decreased stability, highlighting the need for better vision correction and care.
Researchers have discovered that koalas move like marsupials on the ground but employ primate-like strategies when climbing through trees. Koalas exhibit a similar gait pattern to primates, with diagonally opposed hand and foot in contact with branches for stability.
A comprehensive review of 53 studies found no evidence that changing a runner's strike pattern reduces injury risk or improves performance. Running on the front of feet may make runners less efficient in the short term.
New research reveals the last remaining Arctic ice refuge is disappearing due to increased ocean currents and atmospheric winds, with the oldest ice declining twice as fast as the rest. The Last Ice Area will soon be gone, threatening wildlife survival and potentially leading to the loss of species.
Researchers at MIT and University of Illinois develop method to control balance in two-legged, teleoperated robot. The approach enables humanoid robots to exert force or push against something without falling, paving the way for high-impact tasks in challenging environments.
A new Stanford study found that expressing uncertainty about climate change predictions increases public trust in scientists, but acknowledging unknown factors can undermine credibility. When climate scientists include best-case and worst-case scenarios, Americans are more trusting and accepting of their statements.
Researchers have discovered that Saharan silver ants can reach speeds of up to 0.855m/s, making them the fastest ants ever recorded. The team found that the ants' unique footwork, including a gallop-like movement and coordinated leg swings, allows them to navigate their desert habitat efficiently.
A Japanese research team developed a virtual walking system that records a person's walk and replays it to another user, creating an illusion of walking. The system uses pre-recorded oscillating optic flow and synchronous foot vibrations to induce sensations of self-motion, walking, leg action, and telepresence.
Researchers at Imperial College London aim to re-engineer stump skin using the tough properties of foot sole skin to reduce rubbing and pain from prosthetics. They found that thicker collagen fibers and different types of keratin are key factors in protecting sole skin from ulcers and blisters.
A University of California - Santa Barbara mechanical engineer's simple running hack uses a light resistance band to increase efficiency by approximately 6.4%. The device optimizes the work needed to swing legs, reducing energy required during each impact with the ground and allowing for shorter strides.
Researchers discovered that warty and smooth-skinned octopuses from different depths are the same species. The deeper they live, the bumpier their skin and smaller their bodies. Genetic analysis confirmed these findings, indicating that environmental factors, such as food availability, influence the animals' appearance.
Researchers found that applying normal tap water to the chest, arms, back, legs, and face with a sponge lowered cardiovascular strain and halved dehydration rates compared to just drinking water. Immersing feet in water was also effective, but not as effective as self-dousing.
Researchers at ETH Zurich developed a neuroprosthetic system that allows leg amputees to feel sensations from the prosthesis, giving them a sense of control and confidence while walking. The system involves tiny electrodes implanted in the nerve, allowing the brain to perceive the prosthesis as an extension of the body.
A graduate student's essay explores why there are no animals with three legs, citing the challenges of stability and balance. Thomson notes that tripod stances and three-limbed movement exist in some animals, but the evolutionary pressures favor bilateral symmetry.
Young stroke survivors who can walk faster than 3 feet per second are more likely to return to work, with those walking almost 6 feet per second showing significant improvement. The study highlights the potential of walking speed as a reliable tool for clinicians to predict return to work and guide rehabilitation.
The iStride Device, a patented therapeutic shoe, helps stroke patients relearn how to walk by strengthening the affected leg. Clinical trials show improved gait symmetry and functional walking in six participants, with four achieving double limb support.
New research reveals that microtubules in chromosome-dividing spindles are propelled forward by collective motion due to entanglement with neighboring tubes. This understanding aims to improve the study of cellular machinery and prevent errors like missing or extra chromosomes.