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 5 of 5 for “"tracheal collapse"”.
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The role of the abdominal pump in tracheal tube collapse in the darkling beetle, Zophobas morio
… in the respiratory system by compressing their tracheal tubes, yet the underlying physiological mechanisms of tracheal collapse are also unknown. This study aimed to investigate the relationship between abdominal pumping and the compression of tracheal tubes in the darkling beetle, Zophobas …
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The Biomechanics of Tracheal Compression in the Darkling Beetle, Zophobas morio
… dissertation, we examine mechanics of rhythmic tracheal compression (RTC) in the darkling beetle, Zophobas morio. In Chapter 2, we studied the relationship between hemolymph pressure and tracheal collapse to test the hypothesis that pressure is a driving mechanism for RTC. We found that tracheae …
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Patterns of Hemolymph Pressure Related to Tracheal Tube Collapse in the Beetle Pterostichus commutabulis
Rhythmic collapse and reinflation of tracheal tubes is a form of active ventilation that augments convective gas exchange in multiple orders of insects. The underlying mechanism driving this phenomenon is not known. Among other things, tracheal tube collapse could be caused by either direct …
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Alchemistic Polymers for the Delivery of Therapeutic Agents in Treatment of Pediatric Tracheomalacia
… by flaccidity of the airway whereby tracheal collapse occurs during respiration. Globally, approximately 1:21 children are affected by airway malacia whether it be acquired or from congenital origins. Of the available modalities of treatment, stenting has the greatest potential for …
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The mechanical linkage of abdominal movements and the respiratory system in beetles
… considered to produce ventilation of air in the tracheal system, but the mechanistic link between abdominal movement and flow of air is not well understood. In this thesis, we explore the relationship between the abdominal pump and ventilation of air using pupal and adult forms of the darkling …