3,663 research outputs found
Milano consolato nell' elettione a questo arciuescouado, e promotione alla sagra porpora dell' eminentissimo Federico Visconti : colla sua solennissima entrata seguita a' 11. genaro 1682 e fontioni antecedenti /
No full textFrontispiece coat of arms of Milan, engraved by Federico Agnelli.Signatures: pi⁴ A-G⁴ H⁴(-H4).Mode of access: Internet.Binding: limp vellum. Author & title written on spine
La politica comparata. Strategie e ricerche
No full textL’originalità di questo manuale consiste nell’essere uno dei pochi tentativi di presentare la politica comparata come disciplina e metodo e, insieme, di esporre fenomeni politici messi a confronto su vari aspetti. È infatti articolato in due parti fra loro diverse ma complementari. La prima parte è un’introduzione alla politica comparata. Tratta delle sue origini e dei suoi sviluppi, delle teorie e degli strumenti d’indagine, degli oggetti privilegiati di analisi, delle strategie di ricerca; nonché delle difficoltà e dei limiti della comparazione in scienza politica. Se è forse eccessivo affermare che tutta l’analisi politologica sottintende una prospettiva comparata, certo è che la politica comparata è la subdisciplina centrale della scienza politica. Questo testo ne espone gli elementi essenziali, in maniera semplice e al contempo rigorosa. La seconda parte del manuale contiene le sintesi ragionate, presentate alla luce delle impostazioni fornite nella prima parte e corredate da schede riassuntive, di sei esemplari ricerche di politica comparata condotte da altrettanti studiosi italiani. Il lettore può rendersi conto di come lavorino i politologi comparatisti e quali possano essere i risultati del loro lavoro. Può leggere di approfondite indagini comparate sulla formazione degli stati-nazione e dei nazionalismi nell’Europa moderna, sui partiti e sui sistemi di partito, sui partiti di sinistra fra Otto e Novecento, sui parlamenti nei principali sistemi democratici, sulle transizioni dall’autoritarismo alla democrazia nell’Europa meridionale e sulle subculture politiche territoriali in Itali
»It contained harbours that pleased me like sonnets«. Kleine Poetik der diegetischen Karte
No full textIn this article, Federico Italiano explores the relationship between literature and cartography. Beginning with Stevenson’s Treasure Island, the author frames the topic through a general theoretical lens on the spatial dimension of literary texts. He then focuses on a specific phenomenon of literary "carticity"—the diegetic presence of the map, that is, the map as an integral element of the narrative structure. Among others, Italiano examines the works of Houellebecq and Cormac McCarthy
Visualization of microbial biofilm on explanted central venous catheters by two-photon laser scanning microscopy
No full textMicro-morphological features for the characterization of in-vitro microbial biofilm development on central venous catheters
No full textOptimizing protocols for preparation and imaging of natural teeth, dental implant and peri-implant tissues in high vacuum, low vacuum, and environmental SEM
No full text
Microscopic study of surgically excised vitreoretinal membranes
No full textPurpose
To evaluate the microscopic characteristics of inner limiting membranes (ILM), idiopathic and secondary epiretinal membranes (ERM), and subretinal membranes (SRM) obtained during surgical vitrectomy.
Materials and methods
Thirty-two vitreoretinal membrane specimens were collected by sequential peeling during vitrectomy from 32 eyes of 31 consecutive patients. Excised tissues were formalin fixed and whole mounted on glass slides for optical microscopy. Images of unstained samples were obtained under transmitted light, phase contrast and polarized light to evaluate tissue morphology, birefringence (yes/no), pigmentation (yes/no) and pigment distribution (diffused/clustered). Imaging after staining with haematoxylin was performed for the semiquantification of the amount of cell nuclei (low, intermediate, high) and the evaluation of their distribution (homogeneous/clustered) within the sample. In selected samples, immunohistochemical staining for α-smooth muscle actin (anti-α-SMA) was performed. Data were analyzed after grouping according to the following tissue types: ILM only (n=10), ERM only (n=6), ILM+ERM (n=10), proliferative vitreoretinopathy (PVR) (n=6).
Results
ERM and PVR specimens presented higher cellularity than ILMs. Specimens containing both ERM and ILM showed intermediate cellularity between ILM and ERM group. Birefringence was present in all ERM specimens, but only in 5/10 (50%) of ILMs. High amount of pigment was found only in PVR specimens, but intermediate amount of pigment was occasionally present also in 2/6 (33%) and 1/10 (10%) of ERM and ILM specimens, respectively. Pigmentation was compartmentalized inside the cell-like structures or diffused in the extra-cellular matrix. Leucocyte-rich vessels were present in a PVR specimen from a diabetic patient (Fig. 1). Positivity to anti-α-SMA was found (Fig. 2).
Conclusion
The microscopic characterization of the surgically removed vitreoretinal membranes can provide information on characteristics of the tissues involved in the retinal diseases, confirming the presence of cellular components involved in the pathogenesis and progression of vitreoretinal diseases
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