Results 71 to 80 of about 360,249 (306)

To boldly gulp: standard metabolic rate and boldness have context-dependent influences on risk-taking to breathe air in a catfish [PDF]

open access: yes, 2015
The African sharptooth catfish Clarias gariepinus has bimodal respiration, it has a suprabranchial air-breathing organ alongside substantial gills. We used automated bimodal respirometry to reveal that undisturbed juvenile catfish (N=29) breathed air ...
Belao, Thiago C.   +3 more
core   +3 more sources

Soft Robotic Snake with Tunable Undulatory Gait for Efficient Underwater Locomotion

open access: yesAdvanced Robotics Research, EarlyView.
This study designs an underwater soft snake robot using 3D‐printed soft actuators, controlled by specific signals to generate sinusoidal undulation. Results show a positive correlation between speed and swing amplitude, with optimal performance at 2/3π phase offset, PLA tail, 1.2 voltage growth rate, and 6s undulation period achieving a maximum speed ...
Huichen Ma, Junjie Zhou, Raye Yeow
wiley   +1 more source

Transcriptional regulation and signaling of type IV interferon in Carassius gibelio

open access: yesCell Communication and Signaling
It was recently shown that vertebrates, ranging from fish to primitive mammals, possess type IV IFN (IFNυ). However, their precise function and elaborate signaling remains unknown.
Caijiao Dai   +7 more
doaj   +1 more source

Feeding Habits of Wisconsin\u27s Predominant Lotic Plecoptera, Ephemeroptera, and Trichoptera [PDF]

open access: yes, 2017
Feeding habits of nymphs or larvae of 101 species of Plecoptera, Ephemeroptera, and Trichoptera collected from Wisconsin\u27s streams were determined by examining foregut contents.
Hilsenhoff, William L   +1 more
core   +3 more sources

Large aquatic animals

open access: yesPapers and proceedings of the Royal Society of Tasmania, 1872
The following paper on the existence of large animals, (probably fresh water seals) in the upland lakes of Tasmania, prepared by C. Gould, Esq., F.G.S., was, in Mr. Gould's absence, read at the last meeting of the Royal Society: — I wish to lay before the Society a statement of facts, which is full of interest and surprise, and which will show, if ...
openaire   +1 more source

Multi‐Material Additive Manufacturing of Soft Robotic Systems: A Comprehensive Review

open access: yesAdvanced Robotics Research, EarlyView.
This review explores the transformative role of multi‐material additive manufacturing (MMAM) in the development of soft robotic systems. It presents current techniques, materials, and design strategies that enable functionally graded and adaptive structures.
Ritik Raj   +2 more
wiley   +1 more source

Strong‐Magnetic Flexible Composites for Magnetically Responsive Soft Robots

open access: yesAdvanced Robotics Research, EarlyView.
This perspective provides an overview of the performance mechanisms, preparation methods, and applications of strong magnetic flexible composite materials in soft actuators (such as gripping, movement, and sensing), and further explores current opportunities and challenges.
Wenwen Li   +4 more
wiley   +1 more source

An easily implemented single‐visit survey method for intermittently available and imperfectly detectable wildlife applied to the Florida east coast diamondback terrapin (Malaclemys terrapin tequesta)

open access: yesEcology and Evolution
Single‐visit surveys of plots are often used for estimating the abundance of species of conservation concern. Less‐than‐perfect availability and detection of individuals can bias estimates if not properly accounted for.
Eric D. Stolen   +3 more
doaj   +1 more source

Effects of Nitrite Stress on Growth, Glycolipid Metabolism, and Hepatic Metabolome in Spotted Seabass (Lateolabrax maculatus) Under High-Temperature Conditions

open access: yesAnimals
Nitrite is a common pollutant in aquaculture systems and can pose serious threats to fish health, especially under high-temperature conditions. This study aimed to investigate the impact of nitrite stress on the growth, glycolipid metabolism, and hepatic
Juan Gao   +8 more
doaj   +1 more source

Hard‐Magnetic Soft Millirobots in Underactuated Systems

open access: yesAdvanced Robotics Research, EarlyView.
This review provides a comprehensive overview of hard‐magnetic soft millirobots in underactuated systems. It examines key advances in structural design, physics‐informed modeling, and control strategies, while highlighting the interplay among these domains.
Qiong Wang   +4 more
wiley   +1 more source

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