3,361 research outputs found
Emma Bell Miles journal, 1908-1911
No full textJournal authored by Walden's Ridge naturalist, artist, and author Emma Bell Miles from 1908 May 24 to 1911 April 25
Emma Bell Miles journal, 1911-1914
No full textJournal authored by Walden's Ridge naturalist, artist, and author Emma Bell Miles from 1911 January 9 to 1914 May 3
Emma Bell Miles journal, 1915-1918
No full textJournal authored by Walden's Ridge naturalist, artist, and author Emma Bell Miles from 1915 November 11 to 1918 August 8
Emma Bell Miles journal, 1915-1918
No full textJournal authored by Walden's Ridge naturalist, artist, and author Emma Bell Miles from 1915 November 11 to 1918 August 8
Emma Bell Miles journal, 1911-1914
No full textJournal authored by Walden's Ridge naturalist, artist, and author Emma Bell Miles from 1911 January 9 to 1914 May 3
Emma Bell Miles journal, 1908-1911
No full textJournal authored by Walden's Ridge naturalist, artist, and author Emma Bell Miles from 1908 May 24 to 1911 April 25
Emma Bell Miles journal, 1915
No full textJournal authored by Walden's Ridge naturalist, artist, and author Emma Bell Miles from 1915 June 15 to 1915 September 22. The journal also includes newspaper clippings of Miles' Fountain Square Conversation column authored for the Chattanooga News
Emma Bell Miles journal, 1915
No full textJournal authored by Walden's Ridge naturalist, artist, and author Emma Bell Miles from 1915 June 15 to 1915 September 22. The journal also includes newspaper clippings of Miles' Fountain Square Conversation column authored for the Chattanooga News
Slow motor neuron stimulation of locust skeletal muscle: model and measurement
No full textThe isometric force response of the locust hind leg extensor tibia muscle to stimulation of a slow extensor tibia motor neuron is experimentally investigated, and a mathematical model describing the response presented. The measured force response was modelled by considering the ability of an existing model, developed to describe the response to the stimulation of a fast extensor tibia motor neuron and to also model the response to slow motor neuron stimulation. It is found that despite large differences in the force response to slow and fast motor neuron stimulation, which could be accounted for by the differing physiology of the fibres they innervate, the model is able to describe the response to both fast and slow motor neuron stimulation. Thus, the presented model provides a potentially generally applicable, robust, simple model to describe the isometric force response of a range of muscles.<br/
A comparison of models of the isometric force of locust skeletal muscle in response to pulse train inputs
No full textMuscle models are an important tool in thedevelopment of newrehabilitation and diagnostic techniques.Many models have been proposed in the past, but little workhas been done on comparing the performance of models. Inthis paper, seven models that describe the isometric forceresponse to pulse train inputs are investigated. Five of themodels are from the literature while two new models are alsopresented. Models are compared in terms of their ability to fitto isometric force data, using Akaike’s and Bayesian informationcriteria and by examining the ability of each model todescribe the underlying behaviour in response to individualpulses. Experimental data were collected by stimulating thelocust extensor tibia muscle and measuring the force generatedat the tibia. Parameters in each model were estimated byminimising the error between the modelled and actual forceresponse for a set of training data. A separate set of test data, which included physiological kick-type data, was used to assess the models. It was found that a linear model performed the worst whereas a new model was found to perform the best. The parameter sensitivity of this new model was investigated using a one-at-a-time approach, and it found that the force response is not particularly sensitive to changes in anyparameter
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