Articles tagged with Swimming
Chronic oil pollution has been a long-standing problem along the Atlantic Coast in Brazil, Uruguay and Argentina. Researchers found that Magellanic penguins, appearing in high numbers among oiled seabirds, are particularly affected by the pollution.
Researchers found barbell-shaped bacteria in a marine pond that swim toward geomagnetic south when oxygen levels are high, contradicting the accepted model of magnetotaxis. The discovery suggests new models are needed to explain how these bacteria behave in their environment.
A unified physics theory explains how animals move by minimizing imperfections in their flows. The constructal law predicts relationships between body mass and speed, stride frequency, and muscle force, showing convergences across different species and environments.
A University of Colorado researcher has discovered tracks of a previously unknown two-legged swimming dinosaur along the shoreline of an ancient inland sea that covered Wyoming 165 million years ago. The six-foot-tall bipedal creature, similar to a Coelosaur, likely waded along the shoreline and swam offshore to feed on fish or carrion.
Researchers found that levels of enterococci bacteria were higher at beaches during full and new moon phases, increasing the risk of illness. The study suggests using tidal patterns as a tool for assessing water quality and identifying potential sources of pollution.
Mayo researchers identified a genetic glitch in the heart's electrical system, which can lead to sudden and unexpected drownings. The study found two cases of proficient swimmers who died unexpectedly while swimming, highlighting the importance of further research into this phenomenon.
A UK study found that football players are most at risk of injury, with over half sustaining an injury between 1990 and 2000. Elite young athletes competing at international levels had the highest rate of injuries, highlighting the need for proper training and prevention measures.
Consumers demonstrate general reciprocity by rewarding firms for actions with no personal benefit, based on perceived motives. The study's findings suggest that the true motives of firms do not influence consumer responses to effort.
Researchers have discovered how modern fish, such as pike and cod, developed a way to float at different water levels by inflating their swimbladders with gas. This is made possible by a complex system of arteries, veins, and special blood proteins that drive oxygen into the swimbladder.
A school-based intervention increased vigorous physical activities and decreased sedentary behaviors among African-American children, particularly girls. The study found a significant increase in high-intensity physical activities and a decrease in sedentary behaviors after the eight-week PE program.
A national partnership of public health organizations is launching a new initiative to educate the public on the need to stay involved in monitoring and maintaining healthy pools. The Healthy Pools campaign aims to correct misconceptions about swimming pool health, offering tips on recognizing risky facilities and promoting cleaner pools.
A study published in Journal of Biology reveals that young dolphins adopt an ideal position to get a 'free ride' in their mother's slipstream, reducing energy required for swimming. This drafting phenomenon helps the calf stay with its mother, but can be disrupted by fishing vessels, potentially impacting dolphin populations.
Researchers observed Bacillus subtilis bacteria moving through fluid in a coordinated pattern, creating swirls and jets that stir the fluid and may aid bacterial detection. The 'self-concentration' phenomenon has potential applications in biotechnology, particularly in mixing minute quantities of solutions.
A new study reveals that parasitic flatworms use light to locate hosts, while water temperature increases their swimming speed. The findings suggest that the larvae's movement is largely controlled by themselves rather than environmental factors.
A study by Taiwanese researchers found that swimming exercises can improve bone density and mechanical properties in growing rats, similar to weight-bearing exercise. However, the benefits of non-weight-bearing exercises like swimming on long bone biomechanical properties were not significant.
adidas introduces the JETCONCEPT bodysuit, which uses riblets to channel water and reduce drag, resulting in up to 3% increase in swimming performance. The suit was developed using technology from commercial aircraft, focusing on form drag rather than friction drag.
A team of Marine Corps reconnaissance swimmers, Navy SEALS, Explosive Ordnance divers, dolphins, and REMUS worked together to clear mines from Iraq's port. REMUS successfully located potential targets, allowing the dolphins to inspect and report back on its findings.
A study found that regular indoor swimming pool attendance is associated with increased lung damage and a higher risk of childhood asthma. The researchers measured lung proteins in children who swam regularly at indoor pools, finding significant associations with cellular damage and respiratory issues.
Researchers at the University of Florida have developed a new index that can accurately predict days with high risk of rip currents, allowing for timely lifeguard deployments and potential beach closures. The model was tested in Volusia County, where lifeguards reported an average of 686 rip-current rescues annually.
Researchers have developed a comprehensive understanding of crayfish locomotion, revealing an intricate eight-module system that integrates signals from each segment and the brain. This complex neural network is likely to be found in other animals, including insects and humans.
Research suggests that hammerheads' electrosensory function enhances their food-finding capabilities along the ocean floor. The study also found that the cephalofoil acts like a canard to increase maneuvering capabilities, enabling the sharks to turn more sharply and with greater velocity than comparable species.
Jake Socha's research on the Chrysopelea paradisi reveals that the snake glides by undulating its body, changing amplitude and frequency while airborne. The study provides new insights into the aerodynamics of these 'flying' snakes, which can glide up to 70 feet across.
Great Lakes rip currents can be deadly, but knowing how to identify them and escape is crucial. Longshore currents flow along the shoreline, while rip currents flow perpendicular to it; always swim perpendicular to the current. Cold water multiplies danger, so take necessary precautions when swimming in cold water.
A team of microbiologists has found that the bacterium Geobacter metallireducens can locate and home in on its metal food source using a built-in sensor. The bacteria can also grow flagella to swim towards the metal, allowing it to thrive in environments where other microorganisms cannot.
The UMass microbiology team found that Geobacter metallireducens has a built-in sensor to locate metals and can grow flagella to swim towards them. The bacteria use these strategies to survive in natural environments, and their genome revealed genes for flagella growth, allowing them to transform metal into an insoluble form.
Recent studies found no link between intense training and stunted growth or maturation in young female athletes. Instead, body size seems to be appropriate for the sport, with parents of gymnasts being shorter than average. Further research is needed to understand the effects of training on growth.
Researchers found that certain fish muscles specialized for fast mating calls are now mutually exclusive with other functions like swimming. The study, on toadfish Opsanus tau, reveals the limitations of biological systems when optimized for one function.
Researchers are developing robotic lampreys with artificial muscle material, onboard compass, and sonar altimeter to mimic nature in technology. The robots can swim backward and maintain an S-shape during movement, making them ideal for stealthy underwater operations.
A study found that spraying water with airborne bacteria in indoor swimming pools can lead to a lung disease called granulomatous pneumonitis. Lifeguards who worked long hours at pools with water features were most affected, and symptoms included cough, wheezing, and difficulty breathing.
Researchers from UNC Highway Safety Research Center found that only 2.1% of boaters tested showed blood alcohol above 0.08%, with 18% reporting consumption and 14% having elevated levels. The study aims to determine alcohol's role in boating fatalities and injuries.