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 7 of 7 for “"Abdominal segments"”.
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Revisão sistemática dos Pyrgomorphidae sul-americanos (Orthoptera, Acridoidea)
… of the head, thorax, femur, terminal abdominal segments and genitalia of males and females are given as well as a map showing the geographical distribution of the species.
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Aspects of the morphology of the ovipositor of Hylotrupes bajulus (L.) (Coleoptera: cerambycidae)
… elongated ovipositor comprised of the modified abdominal segments 8 and 9, intersegmental membrane 8/9, and pair of distal gonostyli. When not in use, the ovipositor is retracted within abdominal segment 7. The 8th abdominal segment forms the proximal end of the ovipositor. An internal apodeme …
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Appendage development and early Distal-less regulation in arthropods: A study of the chelicerate Tetranychus urticae (Acarida)
… the Drosophila system. Dll suppression in fly abdominal segments occurs due to powerful Hox (Ubx/AbdA) repression of the early Dll cis-regulatory element; this is discussed in relation to the independently evolved limbless chelicerate opisthosoma, informed by hypothetical scenarios of cis …
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Investigating the roles of candidate gap genes from the neuroblast timer series during axial patterning in the beetle Tribolium
… genes), and the subsequent diversification of segments (through regulation of Hox genes). Although homologues of the gap genes play important roles in segment patterning in many insects, there is as yet no clear understanding of the network as a whole outside of Drosophila. In particular, the …
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Effects of water mite parasitism on Cenocorixa spp. (Heteroptera: Corixidae)
… as a shift of mite attachment from the centre of abdominal segments 2, 3, and 4 on the non-sclerotized hosts, to the thoracico-abdominal membranes (T.A.M.) on the sclerotizedhosts. It is speculated that the thickness of the flying hosts' sclerotized integument forces this change in location of …
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A computational and experimental study of the Drosophila larval locomotor system and its developmental critical period
… differences in oscillator dynamics, of posterior segments acting as pacemakers that generate rhythmic activity even in absence of input, and anterior segments as followers, I was able to simulate the experimental outcomes in silico: namely, fictive locomotion activity is generated in isolated, …
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Neural processing of chemosensory information from the locust ovipositor
… sensilla) located 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 …