Global ETD Search
Search theses and dissertations gathered from participating repositories worldwide. Every result links back to the library that holds it. No account is needed.
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Showing 1 to 20 of 66 for “"locust"”.
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Force response of locust skeletal muscle
The force response of the locust hind leg extensor muscle to input excitation pulses is modelled. Despite the processes behind muscle contraction being well established, no broadly valid method of modelling skeletal muscle exists. Studies that compare the merits of existing models are extremely …
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Neural processing of chemosensory information from the locust ovipositor
… on the ovipositor and genital segments of the locust serve to control the chemical features of the substrate before and during oviposition. They occur dispersed and also crowded in fields between mechanosensory exteroceptors sensitive to touch or wind (trichoid and filiform sensilla). The …
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Neural processing of chemosensory information from the locust legs
… the reflex of the pro and mesothoracic legs in Locusta migratoria L under control of their chemoreceptors in responses to be stimulating media. The study was conducted utilising different stimulating media namely : salt (10mM and 100mM NaCl), sugar (50mM sucrose and 50mM glucose), acid (25mM …
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Cover, Uncover: The Changing Face of Architecture on Locust Street
<p>Locust Street was once a vibrant banking and commercial district in downtown St. Louis. Today, it is an untidy collection of new, old, dilapidated, semi-intact, restored, and vacant buildings punctuated by crumbling parking lots and garages threatening imminent collapse. To understand why, we …
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Characterizing Locust Anemotaxis: The Impact of Sensory Perturbations on Flight Behavior
… the effects of sensory perturbations on locust flight behavior, with the goal of better understanding how locusts integrate multiple sensory inputs to maintain flight control. Through a series of experiments, locusts were subjected to visual impairment, turbulent wind conditions, …
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Locust Imagery and the Problem of Genre in the Book of Joel
This thesis explores the locust imagery in the book of Joel to suggest a more helpful way to classify the text. Scholars classify Joel as either prophetic, proto-apocalyptic, or apocalyptic literature based on different approaches to the text. This thesis will argue that Joel should be seen as part …
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Ion transport in the ileum of the desert locust Schistocerca gregaria, forskal
Recently, Audsley (1991) purified a neuropeptide factor - scgITP from the copora cardiaca of Shistocerca gregaria. ScgITP stimulates ileal reabsorption of Cl⁻, K⁺, Na⁺ and fluid and inhibits acid secretion. Stimulation with scgITP causes an increase in both Cl⁻ dependent short-circuit current and …
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Cellular signalling pathways involved in thermoprotection of neural ciruit function in the locust.
… CNS thermotolerance. I used the migratory locust (Locusta migratoria), an animal that inhabits environments that can have large fluctuations in ambient temperature daily, to examine how neuronal circuits cope with temperatures stress. Using the ventilatory central pattern generator (vCPG) …
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Functional design and scaling of the jumping mechanism of the African desert locust
… of an exoskeletal animal, the African Desert Locust (Schistocerca gregaria). It was found that the tibial leg segments of both the mesothoracic (ie. non-jumping) and the metathoracic (jumping) legs scaled in a manner that produced relatively longer, more slender skeletal elements as the animal …
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Evaluation of Metarhizium anisopliae mycoinsecticide as an alternative locust control measure in southern Africa
Please read the abstract in the section 00front of this document
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Effects of Black Walnut and Honey Locust on Forage Growth, Soil Water, and Soil Quality Indicators
… were to: 1. Determine the influence of honey locust and black walnut silvopastures on indicators of soil quality when compared to open pasture. 2. Determine if silvopasture systems changed forage mass production and soil water compared to open pastures. The study on soil quality indicators was …
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A pharmacological study of signal transduction mechanisms controlling fluid reabsorption and Ion transport in the locust rectum
Like most insects, locusts face severe regulatory challenges associated with arid habitats, high metabolic rates and high surface area to volume ratios. Therefore, the conservation of water, essential ions and metabolites is very important. Consequently, locusts regulate their hemolymph composition …
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Environmental-Stress Tolerant Formulations of Metarhizium anisopliae var. acridum for Control of African Desert Locust (Schistocerca gregaria)
Entomopathogenic fungi are highly susceptible to the damaging effects of solar radiation. Attempts to protect entomopathogenic fungi from solar radiation have been, for the most part, unsuccessful. A new strategy for formulating entomopathogenic fungi for protection from solar radiation and …
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A framework for an early warning system for the management of the spread of locust invasion based on artificial intelligence technologies.
… especially in light of threats like devastating locust invasions. The agricultural sector in Zambia, particularly in the Sikaunzwe area of Kazungula district, Southern Province, faces unique challenges including inaccurate locust species identification, a lack of field staff, and the …
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Guar and locust bean gums as partial replacers of all-purpose flour in bread: an objective and sensory evaluation
… flour could be partially replaced with locust bean gum (LBG) and guar gum, and produce an acceptable bread product. A pilot study determined that up to 4% gum replacement for flour was feasible. All bread treatments were evaluated objectively by standing height, texture, color, and cell …
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Physiological and nutritional changes in nitrogen fixing trees associated with autumnal senescence and chilling
… autumn olive (Elaeagnus umbellata Thunb.), black locust (Robinia pseudoacadia L.), American sycamore (Platanus occidentalis L.) and honey locust (Gleditsia triacanthos L.), was studied during the autumns of 1987 and 1988 on two physically and nutritionally distinct sites in central Illinois, USA. …
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Development and characterization of edible films made from four dietary fibers -pectin, guar gum, locust bean gum, and hydroxypropyl methylcellulose
… of 4 dietary fibers, e.g., guar gum, locust bean gum, pectin, and hydroxypropyl methylcellulose, and glycerol concentration to the mechanical properties and dissolution/ partial dissolution time of their films and the viscosity of their solution. Specifically, it investigates if the …
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Differential Canopy Leaf Flushing and Site Nitrogen Status Facilitate Invasive Species Establishment in Temperate Deciduous Forest Understories
… ash), <em>Robinia pseudoacacia</em> (black locust), and <em>Pinus </em>spp<em>./Tsuga canadensis</em> (pine/hemlock). Measures of understory light availability post-leaf expansion were significantly higher under quaking aspen than other canopies with the exception of black locust and white …
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