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Olfactory Structures in Staged Human Embryos
Cells Tissues Organs, 2004The olfactory region was investigated in 303 serially sectioned human embryos, 23 of which were controlled by precise graphic reconstructions. The following findings in the embryonic period are new for the human. (1) The nasal plates arise at the neurosomatic junction, as do also the otic placodes. (2) Crest comes from the nasal plates later (stage 13)
F, Müller, R, O'Rahilly
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Structure of stage-1 and stage-2 MC12 GICs
Synthetic Metals, 1989Abstract The crystal structure and defect structure of several metal-dichloride GICs are investigated using single crystal x-ray precession, four-circle diffractometry, and transmission electron microscopy. The intercalate layers are found to be translationally incommensurate with the carbon layers.
J.S Speck, M.S Dresselhaus
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Bulletin of Mathematical Biology, 2012
Discrete stage-structured density-dependent and discrete age-structured density-dependent population models are considered. Regarding the former, we prove that the model at hand is permanent (i.e., that the population will neither go extinct nor exhibit explosive oscillations) and given density dependent fecundity terms we also show that species with ...
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Discrete stage-structured density-dependent and discrete age-structured density-dependent population models are considered. Regarding the former, we prove that the model at hand is permanent (i.e., that the population will neither go extinct nor exhibit explosive oscillations) and given density dependent fecundity terms we also show that species with ...
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Resource Competition in Stage-structured Populations
Journal of Theoretical Biology, 2000Two models are made to account for the dynamics of a consumer-resource system in which the consumers are divided into juveniles and adults. The resource grows logistically and a type II functional response is assumed for consumers. Resource levels determine fecundity and maturation rates in one model, and mortality rates in the other.
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Permanence of a stage-structured predator–prey system
Applied Mathematics and Computation, 2013zbMATH Open Web Interface contents unavailable due to conflicting licenses.
Fengde Chen +3 more
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Stage Structure and Stage Salience for Event Semantics
2005It is generally considered at least since Moens and Steedman (1988) that eventualities should be decomposed into sub-eventualities or ‘stages’ (cf. also Parsons, 1990; Smith, 1991; Kamp & Reyle, 1993). Formal models of situation structure seldom pay attention to the ontological status of stages.
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Structural-Safety.org: The collapse of temporary stage structures
The Structural Engineer, 2012Alastair Soane, Director of Structural-Safety.org, draws readers' attention to the latest alert published by the programme.
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Health insurance status and cancer stage at diagnosis and survival in the United States
Ca-A Cancer Journal for Clinicians, 2022Leticia Nogueira +2 more
exaly