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Electrical Signals

All articles tagged with #electrical signals

science2 years ago

"Harvard Uncovers the Secrets of Heartbeat Initiation"

Harvard researchers have discovered that heart cells in developing zebrafish begin to beat suddenly and simultaneously as calcium levels and electrical signals rise. Each heart cell can beat independently without needing a pacemaker, and the heartbeat initiation can occur at various locations within the heart. The study provides insights into the fundamental mechanisms underlying the heartbeat and may help understand cardiac irregularities in humans.

via SciTechDaily|
#calcium-levels#electrical-signals#heart-cells
science2 years ago

Mapping Venus Flytrap's Electrical Pulses with Bioelectronic Technology

Researchers have successfully mapped the electrical signals that trigger the deadly movement of Venus flytraps for the first time. Using thin-film sensors and electrodes, the team measured and recorded the electrical impulses generated by the plant's sensory hairs. The study revealed that the signals propagate at a constant speed from tripped sensory hairs, triggering the trap to close. Surprisingly, the researchers also found spontaneous electrical signals originating from unstimulated hairs. Further research is needed to understand the function of these signals and how electrical impulses propagate in plants. Decoding these signals could provide insights into plant functioning and stress responses.

via ScienceAlert|
#bioelectronics#electrical-signals#plant-biology
health2 years ago

"Unlocking the Mind: Harnessing Brain Signals to Predict Depression and Suicide"

Researchers at the University of Minnesota are studying the brain's electrical signals as potential warning signs for depression and suicide. By analyzing the brain's electrical activity, scientists hope to identify patterns that could help predict and prevent these mental health conditions. This research could lead to the development of new diagnostic tools and interventions for individuals at risk of depression and suicide.

via Star Tribune|
#brain#depression#electrical-signals
science-and-technology2 years ago

Revolutionary Smart Material Prototype Defies Newton's Laws.

Researchers at the University of Missouri have developed a prototype metamaterial that uses electrical signals to control both the direction and intensity of energy waves passing through a solid material. The metamaterial has odd mass density, which provides an unconventional way to customize the design of an object's structural dynamics, or properties to challenge Newton's second law. Potential applications include military and commercial uses, such as controlling radar waves or managing vibration created by air turbulence from an aircraft in flight.

via Phys.org|
#electrical-signals#energy-waves#metamaterials
science2 years ago

The Shocking Conversations of Post-Rain Mushrooms.

Researchers have discovered that electrical signals between mushrooms increase after rainfall, indicating that fungi generate electrical signals in response to external stimuli and use these signals to communicate with each other, coordinating growth and other behavior. The study focused on small, tan-colored ectomycorrhizal mushrooms known as Laccaria bicolor and attached electrodes to six mushrooms in a cluster. The researchers correlated the fluctuation in electrical signals with precipitation and temperature, and causality analysis revealed that the post-rain electric potential showed signal transport among mushrooms.

via Phys.org|
#ecology#electrical-signals#fungi