98%
921
2 minutes
20
A new kind of passive force has been discovered in the joints of insects, one that is a large contributor to almost every leg motion, from posture to scratching to locomotion.
Download full-text PDF |
Source |
---|---|
http://dx.doi.org/10.1016/j.cub.2013.06.052 | DOI Listing |
PLoS One
September 2025
Departamento de Biología, Escuela de Ciencias e Ingeniería, Universidad del Rosario, Bogotá, Colombia.
Honey bees (Apis mellifera) are essential pollinators threatened by sublethal effects of pesticides such as imidacloprid, a widely used neonicotinoid that disrupts the central nervous system. However, many of the systemic effects are poorly understood, especially on the physiological homeostasis of the honey bee. We evaluated the effects of oral administration of imidacloprid and the flavonol rutin on the properties of extracellular fluid (ECF) in Apis mellifera.
View Article and Find Full Text PDFBiol Cybern
September 2025
Department of Mechanical Science and Engineering, University of Illinois Urbana-Champaign, 61801, IL, USA.
In this article, a biophysically realistic model of a soft octopus arm with internal musculature is presented. The modeling is motivated by experimental observations of sensorimotor control where an arm localizes and reaches a target. Major contributions of this article are: (i) development of models to capture the mechanical properties of arm musculature, the electrical properties of the arm peripheral nervous system (PNS), and the coupling of PNS with muscular contractions; (ii) modeling the arm sensory system, including chemosensing and proprioception; and (iii) algorithms for sensorimotor control, which include a novel feedback neural motor control law for mimicking target-oriented arm reaching motions, and a novel consensus algorithm for solving sensing problems such as locating a food source from local chemical sensory information (exogenous) and arm deformation information (endogenous).
View Article and Find Full Text PDFUnfallchirurgie (Heidelb)
September 2025
Klinik für Unfall‑, Hand- und Wiederherstellungschirurgie, Universitätsklinikum Münster, Albert-Schweitzer-Campus 1, Gebäude W1, 48149, Münster, Deutschland.
The bony consolidation of fractures depends on various factors. Under optimal conditions fracture healing takes place within a few weeks. An essential requirement for fracture healing is the restoration of adequate biomechanical stability with an interfragmentary movement which is as ideal as possible.
View Article and Find Full Text PDFCureus
August 2025
Research, Spinal Simplicity, LLC, Overland Park, USA.
Background Sacroiliac joint fusion is performed to stabilize and fuse the joint in patients with degenerative sacroiliitis and joint dysfunction. While several posterior techniques and implants exist as alternatives to lateral approaches, biomechanical and clinical performance data for these systems used as standalone remains limited. This article provides a preliminary cadaveric and clinical assessment of a novel posterior intra-articular sacroiliac fusion implant system.
View Article and Find Full Text PDFFront Vet Sci
August 2025
Fitzpatrick Referrals, Neurology Service, Eashing, United Kingdom.
Pug dogs are predisposed to thoracolumbar myelopathy associated with vertebral articular process dysplasia, suggesting a biomechanical etiology. While surgery is commonly pursued, long-term outcomes remain poorly defined. This retrospective descriptive case series reports on seven Pug dogs that underwent surgical treatment for thoracolumbar myelopathy and were followed up for at least 7 years postoperatively.
View Article and Find Full Text PDF