323,042 research outputs found
L'eredità di Babele. Situazioni e percorsi di letteratura comparata
No full textParole Chiave: LETTERATURA COMPARATA. LETTERATURA EUROPEA. TRADUZIONE LETTERARIA. TEORIA DELLA LETTERATURA.
Una selezione di brani che introducono al pensiero comparatistico attraverso le riflesisoni di alcuni dei piu' insigni studiosi mondiali. Prendendo le mosse dalle questioni di definizione e di metodologia della letteratura comparata, attraverso l'idea di letteratura nazionale e di letteratura europea in rapporto alla concezione di Weltliteratur, il volume giunge alle prospettive attuali e ai nuovi interessi della disciplina. Comprende saggi di: G. Steiner, U. Weisstein, Ch. Bernheimer, E.R. Curtius, H.H. Remak, J. Leerssen, S. Bassnett, U. Eco
Adaptogenic and stamina improving activities of Rubia peregrina and Aparagus acutifolius
No full textA Multiband Printed Log-Periodic Dipole Array for Wireless Communications
No full textA multiband printed Log-periodic dipole array (LPDA) antenna for wireless communications is presented. The antenna has been designed starting from Carrel’s theory, optimized using CST Microwave Studio 2012, and then realized. The comparison between simulated and measured results shows that the proposed antenna can be used for wireless communications both in the S (2.4–3 GHz) and in the C (5.2–5.8 GHz) frequency bands, with very good input matching and a satisfactory end-fire radiation pattern. Moreover, it has a compact size, is very easy to realize, and presents an excellent out-of-band rejection, without the use of stop-band filters, thus avoiding interference out of its operating frequency band
NUOVE FRONTIERE DIAGNOSTICHE NELLA TUBERCOLOSI BOVINA. RIVISTA DI PARASSITOLOGIA, vol. VOL. XIII; p. 26-27, ISSN: 0035-6387
No full textProtective effect of Ephedra nebrodensis on Doxorubicin induced cardiotoxicity in rats
No full textDoxorubicin (DOX) is an anthracycline antibiotic with broad spectrum anti-tumour activity. Its effectiveness has been limited by the occurrence of dose-related myocardial and bone marrow toxicity. As oxidative stress is the main factor in DOX-induced cardiotoxicity, we presumed that agents which enhance endogenous antioxidants can prevent DOX induced cardiotoxicity. Animals received either DOX (3 mg/kg, i.p.) every other day or combination of Ephedra nebrodensis (100 mg/kg and 200 mg/kg, p.o.) and DOX or Ephedra nebrodensis (200 mg/kg, p.o.) extract alone for 2 weeks. Vitamin E (25 mg/kg, p.o.) was used as a positive standard. Cardiotoxicity was assessed by recording changes in ECG (increased QT interval), measuring the levels of cardiac marker enzymes such as lactic acid dehydrogenase (LDH), creatine phosphokinase (CPK), glutamic oxaloacetic transaminase (GOT), and the antioxidant defence enzyme such as reduced glutathione (GSH), superoxide dismutase (SOD), and lipid peroxidative value (LPO) at the end of treatment schedule. Changes in heart rate were also measured in all groups. Treatment with Ephedra nebrodensis (100 mg/kg and 200 mg/kg) significantly (p<0.05) decreased the levels of LPO and cardiac marker enzymes, increased the levels of other antioxidant defence enzymes, GSH and SOD, reversed the changes in ECG and prevented the decrease in heart weight in DOX-treated group. The results suggest that Ephedra nebrodensis has the potential in preventing the cardiotoxic effects induced by Doxorubicin
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