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Keywords: control
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Journal Articles
J Exp Biol (2022) 225 (14): jeb244077.
Published: 21 July 2022
... accelerations while retaining slow, multi-degrees of freedom movement. Biomechanics Springs Elastic recoil Fast movement Control Trap-jaw ants Dynamics U.S. Army Research Laboratory http://dx.doi.org/10.13039/100006754 Army Research Office http://dx.doi.org/10.13039/100000183...
Includes: Supplementary data
Journal Articles
J Exp Biol (2020) 223 (10): jeb212316.
Published: 28 May 2020
... aliasing is induced by ego motion. We hypothesized that obstructing the control of gaze fixation also disrupts detection and tracking of objects. Using the illusory motion stimulus, we show that magnetically tethered Drosophila track objects robustly in flight even when gaze is not fixated as flies...
Includes: Supplementary data
Journal Articles
J Exp Biol (2020) 223 (3): jeb214908.
Published: 5 February 2020
...Suzanne M. Cox; Gary B. Gillis ABSTRACT Controlled landing requires preparation. Mammals and bipedal birds vary how they prepare for landing by predicting the timing and magnitude of impact from the integration of visual and non-visual information. Here, we explore how the cane toad Rhinella marina...
Journal Articles
J Exp Biol (2019) 222 (18): jeb207951.
Published: 12 September 2019
... of oxidative phosphorylation capacity when temperature decreases. These steps are able to adjust following cold acclimation, allowing the animals to occupy a wide thermal range. Mitochondrial respiration Oxidative phosphorylation Thermal sensitivity Cold acclimation Control Regulation Complex I...
Includes: Supplementary data
Journal Articles
J Exp Biol (2019) 222 (11): jeb190884.
Published: 11 June 2019
... ; Wilson et al., 2018 ). The pursuit strategy an animal uses to control its path relative to the target's motion and to make adjustments as the target changes speed or direction has implications for the efficiency and success of the pursuer ( Pal, 2015 ). Studies on insects, birds and mammals have...
Includes: Supplementary data
Journal Articles
J Exp Biol (2019) 222 (9): jeb195172.
Published: 30 April 2019
...Kirsty A. McDonald; Daniel Devaprakash; Jonas Rubenson ABSTRACT Center of mass (COM) control has been proposed to serve economy- and stability-related locomotor task objectives. However, given the lack of evidence supporting direct sensing and/or regulation of the COM, it remains unclear whether...
Journal Articles
J Exp Biol (2015) 218 (19): 3051–3058.
Published: 1 October 2015
... longer hops ( Table 3 ). Cane toads land in a coordinated manner and under most conditions neither the trunk nor head contacts the substrate during landing. Instead, deceleration is exclusively controlled by the forelimbs and their underlying musculature ( Azizi and Abbott, 2013 ; Gillis et al...
Journal Articles
J Exp Biol (2014) 217 (18): 3333–3345.
Published: 15 September 2014
... is a physical linkage mediating mechanical interactions between body and environment, mechanical tuning of the sensor is critical for effective control. We determined the open-loop dynamics of a tactile sensor, specifically the antenna of the American cockroach, Periplaneta americana , an animal that escapes...
Journal Articles
J Exp Biol (2014) 217 (13): 2229–2231.
Published: 1 July 2014
... by The Company of Biologists Ltd 2014 DGC Control Ventilation Schistocerca gregaria Insects exchange respiratory gases with their environment through their elaborate network of gas-filled trachea. These are ramified into small-diameter tracheoles whose tips lie in close proximity...
Journal Articles
J Exp Biol (2011) 214 (24): 4092–4106.
Published: 15 December 2011
...Bo Cheng; Xinyan Deng; Tyson L. Hedrick SUMMARY Insects produce a variety of exquisitely controlled manoeuvres during natural flight behaviour. Here we show how hawkmoths produce and control one such manoeuvre, an avoidance response consisting of rapid pitching up, rearward flight, pitching down...
Journal Articles
J Exp Biol (2008) 211 (2): 258–266.
Published: 15 January 2008
...Graham K. Taylor; Marko Bacic; Richard J. Bomphrey; Anna C. Carruthers; James Gillies; Simon M. Walker; Adrian L. R. Thomas SUMMARY Here we consider how new experimental approaches in biomechanics can be used to attain a systems-level understanding of the dynamics of animal flight control. Our aim...
Includes: Multimedia, Supplementary data
Journal Articles
J Exp Biol (2006) 209 (4): 622–632.
Published: 15 February 2006
... feature of locomotion control. The current study examines running gait selection within the framework of constrained optimization by comparing self-selected running gaits to the gaits predicted by constrained optimization of a cost surface constructed from cost data available in the literature...
Journal Articles
J Exp Biol (2005) 208 (9): 1709–1716.
Published: 1 May 2005
... debate. Provided the external and internal conditions required to measure SMR are met, it is tacitly assumed that the metabolic rate(B) converges to SMR. If SMR does indeed represent a local minimum, then short-term regulatory control mechanisms should not operate to sustain it. This is a hidden...
Journal Articles
J Exp Biol (2005) 208 (6): 979–991.
Published: 15 March 2005
... cost contours derived from this surface. Substantial congruence is found between the predicted and observed behavior using the cost of walking per unit distance. Although minimization of cost per distance appears to dominate walking control, certain notable differences from predicted behavior suggest...
Journal Articles
J Exp Biol (2004) 207 (19): 3339–3348.
Published: 1 September 2004
... secondary vessel interarterial anastomoses immunohistochemistry control structure organisation long-finned eel Anguilla reinhardtii The presence of a secondary vascular system in a number of fishes has been well documented (Vogel, 1981 , 1985a , b ; Vogel and Claviez, 1981 ; Steffensen...
Journal Articles
J Exp Biol (2003) 206 (16): 2803–2829.
Published: 15 August 2003
... stability and static control responses are insufficient to provide asymptotic longitudinal dynamic stability unless they are sensitive to pitch attitude (measured with respect to an inertial or earth-fixed frame)as well as aerodynamic incidence (measured relative to the direction of flight). We find...
Journal Articles
J Exp Biol (1987) 131 (1): 323–336.
Published: 1 September 1987
..., with trembling movements predominating in the pitching plane. A contour-sharpening function is proposed for these movements. An attempt to analyse the eye movement response system using a Bode diagram shows a very poor fit to the data, leading to the conclusion that a closed-loop control system...
Journal Articles
J Exp Biol (1985) 118 (1): 423–426.
Published: 1 September 1985
...Stephen Hagan; Anthony Cook 08 3 185 © 1985 by Company of Biologists 1985 Temperature humidity control Modern controlled environment cabinets with temperature control specifications to ±0·4°C and humidity control at 20°C of ± 3 % between 55 % and 90 % are expensive...