Tag Archive for 'Ultrasound'

Xenorophus hunting sea turtles. Image credit: Robert Boessenecker.

30-Million-Year-Old Fossils Shed Light on Origin of Echolocation in Whales and Dolphins

Nov 23, 2023 by News Staff

In a new paper published this month in the journal Diversity, paleontologists described the fossilized skeletons of the dolphin genus Xenorophus from the...

Reconstruction of Eomortoniellus handlirschi. Image credit: Charlie Woodrow.

Extinct Insect from Baltic Amber Could Hear Ultrasounds, Bat Echolocation

Nov 17, 2023 by News Staff

Hearing has evolved independently many times in the animal kingdom and is prominent in various insects and vertebrates for communication and predator detection....

To investigate plants’ airborne sound emissions, Khait et al. constructed a reliable recording system, where each plant is recorded simultaneously by two microphones; first, they recorded plants within an acoustic box and developed machine learning algorithms to classify the recorded sounds; then they tested the system in a greenhouse, while monitoring physiological parameters of the recorded plants. Image credit: Kie-Ker.

Plants Emit Ultrasonic Sounds When Stressed, Groundbreaking Study Shows

Mar 31, 2023 by News Staff

In new research, biologists at Tel Aviv University recorded ultrasonic sounds emitted by tomato and tobacco plants inside an acoustic chamber, and in a...

Ultrasound exposure improved depressive-like behavior in olfactory bulbectomized rats and reduced their plasma corticosterone levels. Image credit: Mary Theresa McLean.

Ultrasound Exposure Improves Depressive-Like Behavior in Rats, New Study Shows

Aug 16, 2022 by Enrico de Lazaro

Scientists from the Tokyo University of Science and FUJIMIC, Inc. have investigated the effects of ultrasound exposure in olfactory bulbectomized rats...

A molecular phylogeny of Lepidoptera indicating antipredator ultrasound production across the order. Image credit: Barber et al., doi: 10.1073/pnas.2117485119.

Moths Produce Ultrasonic Defensive Sounds to Fend Off Bat Predators

Jul 22, 2022 by News Staff

Scientists from Boise State University and elsewhere have tested 252 genera from most families of large-bodied moths. Their results show that ultrasound-producing...

Weddell seals (Leptonychotes weddellii). Image credit: Elliott Devries.

Weddell Seals Can Produce Ultrasonic Vocalizations: Study

Dec 28, 2020 by News Staff

Marine biologists from the University of Oregon and the University of New Brunswick have recorded common, previously unknown, ultrasonic vocalizations...

Walker et al developed a solid-state ultrasound contrast agent for monitoring pH fluctuations. Image credit: Walker et al, doi: 10.1021/acssensors.0c00245.

Researchers Create First Ultrasound Biosensor

Mar 30, 2020 by News Staff

A team of scientists from Monash University and the Baker Heart and Diabetes Institute has developed a new biosensor that can be used inside a body and...

Conventional ultrasound verifies soft- and hard-tissue features detected in laser ultrasound (LUS) imaging on the forearm: (a) single time trace from LUS imaging of a volunteer’s forearm; (b) photograph of a volunteer’s forearm region, imaged using LUS and conventional ultrasound; a green tracking laser from the LDV is also visible; (c) reconstructed LUS image of a volunteer’s forearm with multiple visible tissue layers; (d) matching conventional ultrasound image of the volunteer’s forearm using a GE Logiq E9 system and a 9 MHz linear probe confirming features detected in the LUS image. Image credit: Zhang et al, doi: 10.1038/s41377-019-0229-8.

Novel Laser Ultrasound Technique Doesn’t Require Contact with Patient’s Body

Dec 24, 2019 by News Staff

The noncontact laser ultrasound technique, developed by a team of MIT engineers, leverages an eye- and skin-safe laser system to remotely image the inside...

Stressed tomato (Solanum lycopersicum) plants emit remotely-detectable and informative airborne sounds. Image credit: V. Wald.

Plants Produce Ultrasonic Clicks under Stress

Dec 11, 2019 by Sergio Prostak

A team of biologists at Tel-Aviv University, Israel, has discovered that stressed plants emit sounds — similarly to many animals — using ultrasonic...

The TinyLev system is composed of the driver board and the single-axis levitator with 72 transducers (arranged as two surfaces, each containing 36 transducers); expanded polystyrene (EPS) particles are trapped at its nodes. Image credit: Marzo et al, doi: 10.1063/1.4989995.

Researchers Develop Home Acoustic Levitator

Aug 16, 2017 by Enrico de Lazaro

A research team at the University of Bristol, UK, has developed a relatively cheap and small acoustic levitator that is capable of holding samples of interest...

Ultrasound is focused to create the shape of a virtual sphere. Image credit: © Bristol Interaction and Graphics group, University of Bristol.

New Device Allows Users Touch, Feel 3D Holograms

Dec 3, 2014 by News Staff

A team of researchers at the University of Bristol, UK, has created a device that enables its users to touch and feel three-dimensional holograms in thin...