Search results for "BOC"
showing 10 items of 477 documents
Recensione a: R. Bessi, Umanesimo volgare. Studi di letteratura fra Tre e Quattrocento. Firenze 2004, in «Studi medievali»
2008
Si tratta di una lunga recensione al vol. di Rossella Bessi, Umanesimo volgare. Studi di letteratura fra Tre e Quattrocento, pubblicato a Firenze, dalla casa editrice Olschki, nel 2004. Il vol. , uscito postumo dopo la prematura morte della studiosa, comprende 17 studi già apparsi precedentemente in varie sedi e relativi alla letteratura italiana, in volgare e in latino, del Tre-Quattrocento, dal Petrarca al Pulci, dal Boccaccio a Lorenzo de' Medici al Poliziano.
On Spaces of Bochner and Pettis Integrable Functions and Their Set-Valued Counterparts
2011
The aim of this paper is to give a brief summary of the Pettis and Bochner integrals, how they are related, how they are generalized to the set-valued setting and the canonical Banach spaces of bounded maps between Banach spaces that they generate. The main tool that we use to relate the Banach space-valued case to the set-valued case, is the R ̊adstr ̈om embedding theorem.
Effects of (+)-tubocurarine on [3H]acetylcholine release from the rat phrenic nerve at different stimulation frequencies and train lengths
1987
The effect of (+)-tubocurarine (TC) on the release of [3H]acetylcholine from the rat phrenic nerve-hemidiaphragm preincubated with [3H]choline was investigated at different stimulation frequencies and train lengths. At 0.5 Hz (100 pulses) TC failed to modulate the evoked acetylcholine release. A slight (30%) inhibition was observed at 1 Hz (100 pulses). Release of acetylcholine evoked at 5, 25 and 50 Hz (100 pulses) or 100 Hz (200 pulses) was markedly reduced by TC. The degree of inhibition (60%) was similar between 5 Hz and 100 Hz. A concentration of 1 mumol/l TC was a maximal effective concentration at 5 Hz whilst at all higher stimulation frequencies a 10-fold higher concentration was ne…
Synthesis of Sesquiterpenes via silicon-guided rearrangement of epoxydecalins
2008
A survey of the rearrangement of methyldecalins via C-5 carbocation intermediates, with special attention to the silicon-guided rearrangement of epoxydecalins is provided. A TMS group properly positioned on either C-1 or C-9 promotes the acidic rearrangement of 10-methyl-4,5-epoxydecalins and 10-methyl-5,6-epoxydecalins with exclusive migration toward C-5 of the methyl or methylene groups linked directly to C-10. The application of this biomimetic approach to the synthesis of a number of spirocyclic and eremophilane sesquiterpenes is reported.
Die Wirkung von Acetylcholin, Dekamethonium und d-Tubocurarin am isolierten Rattenzwerchfell in Abh�ngigkeit von der Denervationsdauer
1955
An 41 isolierten Zwerchfellpraparaten der Ratte wurde zu verschiedenen Zeitpunkten nach Exharese des N. phrenicus die Wirkung von Acetylcholin (Ach), Decamethonium (C 10) und d-Tubocurarin (dTc) untersucht. Die Reaktionen des Muskels zeigten eine charakteristische Abhangigkeit von der Denervationsdauer. Ach verursachte eine Verminderung der Hubhohe elektrisch ausgeloster Einzelzuckungen, Kontraktur und Kontraktur-Ruckstand. Die Wirkung von C 10 ahnelte der von Ach weitgehend. Dagegen fuhrte Gabe von dTc zu einer Senkung der „Grundlinie“ und zur Verminderung der Hubhohe der Einzelzuckungen.
Recurrent venous thromboembolism complicated by heparin-induced thrombocytopenia as a first manifestation of an occult cancer: a case report.
2008
Heparin-Induced Trombocytopenia (HIT) is a serious and potentially fatal complication of patients on heparins. Its management is difficult and it can be more complicated in patients with cancer because of the hemorrhagic risk carried out by direct inhibitor of thrombin, the currently approved drug for HIT. At present, it is not clear whether cancer patients also have an increased risk of HIT. We describe the case of a patient with occult cancer at the moment of the index venous thrombosis, who developed Deep Vein Thrombosis (DVT) and concomitant HIT with thrombotic complications (recurrent contralateral venous thrombosis). The management of HIT was efficaciously based on the combined use o…
Evaluation of thrombin generation in classical Philadelphianegative myeloproliferative neoplasms / Evaluarea generării trombinei în neoplasmele mielo…
2016
Abstract Introduction: Patients with Philadelphia-negative chronic myeloproliferative neoplasms (Ph-MPN), polycytemia vera (PV), essential thrombocythaemia (ET) and primary myelofibrosis (PMF), are prone to develop thrombotic events. We aimed to investigate the coagulation status in their plasma using thrombin generation assay (TGA), a functional global assay, on Ceveron® Alpha. Materials and methods: The samples were collected from 89 consecutive Ph-negative MPN patients and from 78 controls into K2EDTA and CTAD tubes for blood cell counts, TGA and coagulation screening tests. Thrombin generation was analysed in platelet-poor plasma using Technothrombin® TGA assay kit. Results: We found a …
Megakaryocytic features useful for the diagnosis of myeloproliferative disorders can be obtained by a novel unsupervised software analysis
2006
An unsupervised method for megakaryocyte detection and analysis is proposed, in order to validate supplementary tools which can be of help in supporting the pathologist in the classification of Philadelphia negative chronic myeloproliferative disorders with thrombocytosis. The experiment was conducted on high power magnification photomicrographs taken from hematoxylin-and-eosin 3 µm thick sections of formalin fixed, paraffin embedded bone marrow biopsies from patients with reactive thrombocytosis or chronic myeloproliferative disorders. Each megakaryocyte has been isolated in the photos through an image segmentation process, mainly based on mathematical morphology and wavelet analysis. A se…
The Essential Thrombocythemia in 2020: What We Know and Where We Still Have to Dig Deep
2020
The Essential Thrombocythemia is a Chronic Philadelphia-negative Myeloproliferative Neoplasm characterized by a survival curve that is only slightly worse than that of age- and sex-adjusted healthy population. The criteria for diagnosis were reviewed in 2016 by WHO. The incidence varies from 0.2 to 2.5:100 000 people per year, with a prevalence of 38 to 57 cases per 100 000 people. The main characteristics of ET are the marked thrombocytosis and the high frequency of thrombosis. The spectrum of symptoms is quite wide, but fatigue results to be the most frequent. Thrombosis is frequently observed, often occurring before or at the time of diagnosis. The classification of thrombotic risk has …
Tradizioni retoriche e letterarie nelle «Facezie» di Poggio Bracciolini
2011
Le «Confabulationes» (più comunemente note come «Liber Facetiarum») di Poggio Bracciolini sono una raccolta di 273 “facezie” latine (aneddoti, apologhi, motti di spirito, battute salaci, barzellette, brevi novelle) redatte dall’umanista toscano nel corso di molti anni, attraverso una complessa opera di accrescimento, rielaborazione e riscrittura che fa sì che esse possano essere considerate alla stregua di un “work in progress”. Il libro offre notevoli spunti di indagine anche per ciò che riguarda i modelli, le suggestioni utilizzate e rifuse, insomma le “fonti”. Che i mille rivoli della novellistica medievale, latina e volgare, abbiano lasciato sedimenti nella raccolta, è cosa ben nota e g…