Results 41 to 50 of about 35,773 (251)
Advanced Robotics Research, EarlyView.A sea turtle‐inspired amphibious robot uses simulation‐guided optimization to adapt its flipper coordination to different environments. Sensitivity analysis and multiobjective Bayesian optimization identify terrain‐dependent controllers that are validated on hardware.
Nnamdi C. Chikere, Yasemin Ozkan‐Aydin
wiley +1 more source
DYNAMIC PARTICLE SYSTEMS FOR OBJECT STRUCTURE EXTRACTION
Image Analysis and Stereology, 2011 A new deformable model based on the use of a particle system is introduced. By defining the local behavior of each particle, the system behaves as an active contour model showing a variable topology and regularization properties.
Olivier Lavialle +3 more
doaj +1 more source
XeraBorg: Neural Control of Tail‐Flick Escape for Backward Propulsion in Cyborg Crayfish
Advanced Robotics Research, EarlyView.This work presents the first controlled tail‐flick propulsion method for the cyborg Cherax quadricarinatus. Comprehensive experiments establish a foundational framework for using the crayfish's natural escape mechanism as a locomotion strategy, expanding its potential as an underwater and amphibious mobile robot.
H. Nhan Le +7 more
wiley +1 more source
HeliyonThis study reports the concentration of heavy metals in the tissues of stranded sea snakes that died as a result of exposure to an oil spill on the eastern coast of Sharjah, UAE.
Fadi Yaghmour +7 more
doaj +1 more source
Advanced Science, EarlyView.An origami worm‐inspired robot achieves multimodal locomotion in confined pipelines through mechatronic integration that embeds actuation, control, and communication within each origami module. Large, reversible configuration and dimensional changes enable 25 gaits synthesized by a unified framework across peristaltic, inchworm, and wheel‐rolling modes
Qiwei Zhang +6 more
wiley +1 more source
Parasite, 2000 Sarcocysts in muscles of the teiid lizard Ameiva ameivafrom north Brazil were fed to the colubrid snake Mastigodryas bifossatus, the faeces of which had been shown to be devoid of coccidial oocysts or sporocysts.
Lainson R., Paperna I.
doaj +1 more source
Speciation rates are unrelated to the formation of population structure in Malagasy gemsnakes
Ecology and Evolution, 2023 Speciation rates vary substantially across the tree of life. These rates should be linked to the rate at which population structure forms if a continuum between micro and macroevolutionary patterns exists.
Frank T. Burbrink +5 more
doaj +1 more source
Stochastic Entanglement of Deterministic Origami Tentacles For Robust Robotic Grasping
Advanced Science, EarlyView.This study introduces an origami tentacle gripper to robustly grasp objects‐in air, underwater, and even in orbital space‐by exploiting a synergy between local, deterministic deformation programming and global, stochastic entanglements. A single origami tentacle can be designed to coil with a simple tendon pull.
Alec Boron +4 more
wiley +1 more source
Prevalence of Gastrointestinal Parasitic Infections in Captive Snakes, Bangladesh
Veterinary Medicine and ScienceBackground Gastrointestinal (GI) parasitic infections are a common health concern in captive snakes, potentially affecting their well‐being. This study aimed to determine the prevalence and associated risk factors of helminth and protozoan infections in ...
Nazmul Hasan +7 more
doaj +1 more source
Role of Rescue 1122 in Wildlife Welfare in Punjab, Pakistan
Journal of Bioresource Management, 2020 Rescue 1122 emergency services in Punjab (Pakistan) also responds to calls when residents feel threatened from wild animals. Emergency calls received between August 2015 and July 2016 recorded 16 arthropod, 25 mammal, 156 bird, 816 reptile and 264 un ...
Muhammad Sajid Rana +3 more
doaj +1 more source