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 36 for “"marsupial"”.
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Gigantorhynchus orticei a new species (Acanthocephala) from a Peruvian marsupial
Two species of Acantopcephala of the genus <i>gigantorhynchus</i> (<i>G. echinodiscus, G. Lutzi</i>) are considered with relation to the proposed new species, <i>Gigantorhynchus orticei</i>, found in the intestine of <i>Metachirus nudicaudatus</i> from Peru, South America. The specific name is …
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The development of the marsupial shoulder girdle: A case study in Monodelphis domestica
During their embryogenesis, marsupials develop a unique structure, the shoulder arch, which provides the structural and muscle-attachment support necessary for the newborn’s crawl to the teat. One of the most pronounced and important aspects of the shoulder arch is an enlarged coracoid. After …
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Desert Hedgehog is a Mammal-Specific Gene Expressed During Testicular and Ovarian Development in a Marsupial
… PTCH1 and PTCH2 in the developing testes of a marsupial mammal (the tammar wallaby) to determine whether DHH signalling is a conserved factor in gonadal development in all therian mammals.</h1>
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Mammalian limb morphology: the role of the crawl in determining marsupial limb integration, development, and evolution
Marsupials and eutherians, though closely related sister taxa, differ greatly in the variety of morphologies found within their groups. This inequality has largely been argued to be due to the reproductive differences. The crawl most marsupial neonates complete after birth has constrained the …
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Interhemispheric transfer in a marsupial : a behavioural investigation of interhemispheric transfer of visual information in Trichosurus vulpecula
Eight marsupial phalangers, (Trichosurus vulpecula) with mid-saggital section of the optic chiasma were trained monocularly in a visual discrimination task, as were four which had, in addition, mid-saggital sections of the anterior commissure, fasciculus aberrans and hippocampal commissure. All …
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THE APPLICATION OF THE MARSUPIAL AND ROTATING CONVECTION PARADIGMS TO UNDERSTANDING THE TROPICAL CYCLOGENESIS AND INTENSIFICATION OF HURRICANE MICHAEL (2018)
… Caribbean Sea on October 7, 2018. Using the Marsupial and Rotating Convection Paradigms, the study identifies the dynamic and thermodynamic processes influencing the development of the protective “pouch” that supported tropical cyclogenesis and also the principal dynamic elements of the …
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Does variability matter? Major histocompatibility complex (MHC) variation and its associations to parasitism in natural small mammal populations
… their key role in the mammalian evolution the marsupial MHC has been rarely investigated. Studies on primarily captive or laboratory bred individuals indicated very little or even no polymorphism at the marsupial MHC class II genes. However, natural levels of marsupial MHC diversity and …
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Juntos pero no revueltos: diversidad genética del muérdago y actividad dispersora de semillas entre tipos de bosques contrastantes
… mutabilis, con el dispersor de sus semillas, el marsupial arbóreo Dromiciops bozinovici. Evaluamos las diferencias estructurales entre dos formaciones boscosas del Parque Nacional Nahuelbuta: bosques perennifolios y caducifolios (Bosque siempreverde y Nothofagus-Araucaria, respectivamente); y …
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Execution cost optimization for hierarchical planning in the now
… to approach estimating them. We introduce the marsupial logistics domain to study the effectiveness of this approach. We present experiments in large problem instances from marsupial logistics and observed up to 30% reduction in execution cost when compared with a standard hierarchical planner.
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Determinación del vector de Hepatozoon spp., hemoparásito del Monito del Monte (Dromiciops gliroides)
El Monito del Monte (Dromiciops gliroides), marsupial endémico del bosque templado lluvioso de Sudamérica, es una de las especies de mamíferos menos conocidas de estos bosques australes. La marcada incertidumbre acerca de la sobrevivencia de este marsupial en los bosques chilenos, como la escasa …
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Possum magic : exploring colour vision in the common brushtail possum (Trichosurus vulpecula)
… and dichromatic colour vision in the Australian marsupials. Our knowledge about these colour vision systems is limited, with a number of discrepancies in the research. Methodology issues with some of the anatomical and behavioural studies may have falsely indicated trichromacy. It is also …
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Possum magic : exploring colour vision in the common brushtail possum (Trichosurus vulpecula)
… and dichromatic colour vision in the Australian marsupials. Our knowledge about these colour vision systems is limited, with a number of discrepancies in the research. Methodology issues with some of the anatomical and behavioural studies may have falsely indicated trichromacy. It is also …
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A mastofauna do estado do Rio de Janeiro, com especial referência à ordem Polyprotodontia (Marsupiais)
… methods based on measurements of the marsupial skulls in the Museu Nacional collection, Rio de Janeiro. These analyses provide important results for the study of within-species variation and the formation of biogeographical hypotheses.
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The Multituberculates as Living Animals: New Insights into the Ecomorphology, Behavior, and Life History of One of the Most Successful Mammalian Lineages
… tissue microstructure (bone histology) of extant marsupial and placental mammals and discover that the bone histology of those groups are distinct and likely reflect their divergent reproductive strategies. We then apply our histological correlate of reproductive strategies to a sample of …
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Identification and characterisation of KZFPs directly regulated by p53
… and ZNF561. ZNF79 presents an unusual case of a marsupial-conserved KZFP significantly older than the majority of the KZFP family at 160 million years old, yet strongly conserved across many phylogenetic branches with marsupial ZNF79. Furthermore, ZNF79 demonstrates an unusual intermediate TRIM28 …
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Retroviruses in the common brush-tailed possum (Trichosurus vulpecula)
… for, and characterisation of, retroviruses in a marsupial, the common brush-tailed possum (Trichosurus vulpecula). Initial efforts were directed at detecting exogenous retroviruses in possums, but the majority of the work described in this thesis involved the isolation and characterisation of a …
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Contemporary Perspectives on the Development of Australia’s Animal Research Regulation
… I review research in psychology using Australian marsupials in the place of standard model organisms. The primary aim is to evaluate the nature of studies choosing to use marsupial species. I am interested in how animal model choice is influenced by different factors such as the research question, …
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An analysis of a developing and non-developing disturbance during the predict experiment
… to describe the system-scale spin-up within the marsupial paradigm frame-work. The circulation tendency shows that Karl underwent periods of spin-up and spin-down until its eventual development on 14 September. These spin-up and spin-down episodes correspond with the cycle of convective activity …
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