132 research outputs found

    Ideazione, progettazione ed ottimizzazione di un supporto modulare per scale per interni

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    L’obbiettivo principale del presente lavoro consta nell’ideazione, progettazione, modellazione, ottimizzazione e analisi ad elementi finiti di un supporto modulare per scale per interni, regolabile in altezza e in lunghezza in accordo con le specifiche fornite dall’azienda committente. Il contributo innovativo del lavoro consiste nel garantire la possibilità di comporre un’ampia gamma di tipologie di scale prefabbricate nel modo più vario possibile a partire dagli stessi componenti standard di base permettendo, contemporaneamente, significative variazioni nelle dimensioni della pedata e dell’alzata, con possibilità di regolazione diretta durante il montaggio

    Osservazioni immunoistochimiche su componenti del sistema nervoso intramurale del solco reticolare di agnello lattante.

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    The aim of this study was to investigate the presence and distribution of nitric oxide synthase (NOS) and substance P neuropeptide (SP) in the intramural nervous structures of the reticular groove in the suckling lamb. Tissue sections were stained by immunohistochemical methods. NOS and SP-immunoreactive nerve cell bodies and fibers were found in the entire extent of the reticular groove. Nitrergic neurons and fibers were more numerous in the ventral part of the reticular groove, in particular in its floor. SP-immunoreactive nerve fibers and cells, on the contrary, were more concentrated in the lips of the reticular groove

    Headache and Dural Enhancement: Two Case Studies of Different Treatable Pathologies

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    Background: Hypertrophic pachymeningitis (HP) and spontaneous intracranial hypotension are different treatable diseases, which should promptly be recognized and treated to prevent neurologic sequelae. Headache and dural enhancement are the main features of both diseases, thus differentiating between these 2 conditions can be difficult. Cases Description: We present 2 cases with headache and dural enhancement, in which the differential diagnosis was challenging at presentation because, in both cases, clear positional pain modification was not reported. Each patient was referred to us with the suspicion of a diagnosis actually affecting the other one. Based on further findings, which supported diagnosis of spontaneous intracranial hypotension in the first case and of HP in the second one, we briefly review clinical, radiologic, and laboratory features, which can help in the differential diagnosis. Conclusions: An accurate diagnostic workup is mandatory to distinguish among HP and intracranial hypotension

    Identification of Dogiel Type II neurons in the sheep enteric nervous system

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    The aim of the present research was to characterise the main neuronal types of the sheep ileum and to verify the presence of Dogiel type II cells in the MP and SMP plexus of the sheep ileum by immunohistochemical reactions applied on whole-mount tissue preparations. The Dogiel type II cells were distributed in both MP and SMP and showed immunoreactivity for ChAT, Calbindin, Substance P, Neurofilament 68kD and Neuronal Nuclei
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