Search results for "Lode"

Dalla figura all'interpretazione: scoli a Optaziano Porfirio.

2012

Brief an Garlieb H. Merkel

1799

Ms. 930a, Nr. 8, Bl. 22r-23v Böttiger, Karl August. Brief an Garlieb H. Merkel, Weimar, d[en] 13. November 1797 Autora rokraksts / Autograph, vācu, angļu un latīņu val. / Deutsch, Englisch und Latein [4] lpp. / S. Attēlu numuri / Bildnummern: 930a-008-1 – 930a-008-4 Der Verfasser nennt in diesem inhaltsreichen Brief zahlreiche Namen und hält nicht nur die Verbindung mit Merkel, die aus dessen erstem Aufenthalt in Weimar resultierte, aufrecht, sondern gibt ihm weitere Hinweise und Empfehlung für seinen weiteren Aufenthalt in Dänemark. So rät er zur Übersetzung dreier Romane aus dem Englischen, darunter Jane Wests „A gossip's story“ (London 1796). Ferner bittet der Verfasser Merkel um Gefälli…

Xeroderma Pigmentosum – A case report with oral implications

2012

Xeroderma Pigmentosum is a rare autosomal recessive genetic disorder characterized by defective DNA repair leading to clinical and cellular hypersensitivity to ultraviolet radiation and carcinogenic agents. Important clinical features are: intense cutaneous photosensitivity, xerosis, poikiloderma, actinic keratosis, acute burning under minimal sun exposure, erythemas, hyperpigmented lentiginous macules, and malignant lesions in sun-exposed areas, including basocellular carcinoma, squamous cell carcinoma, and melanoma. There is a great involvement of many parts of the body, especially head and neck. The oral manifestations are mainly related to the occurrence of malignant tumors in the lips,…

Lignocellulosic biomass production and persistence of perennial grass species grown in mediterranean marginal lands

2021

© 2021 by the authors.

Characterizing the interaction between enantiomers of eight psychoactive drugs and highly sulfated-β-cyclodextrin by counter-current capillary electr…

2013

The estimation of apparent binding constants and limit mobilities of the complexes of the enantiomers that characterize the interaction of enantiomers with chiral selectors, in this case highly sulfated β-cyclodextrin, was approached using a simple and economic electrophoretic modality, the complete filling technique (CFT) in counter-current mode. The enantiomers of eight psychoactive drugs, four antihistamines (dimethindene, promethazine, orphenadrine and terfenadine) and four antidepressants (bupropion, fluoxetine, nomifensine and viloxazine) were separated for the first time for this cyclodextrin (CD). Estimations of thermodynamic and electrophoretic enantioselectivies were also performe…

COMPARATIVE-STUDY ON INCLUSION-COMPOUNDS OF 4-BIPHENYLACETIC ACID WITH BETA-CYCLODEXTRIN, HYDROXYPROPYLATED-BETA-CYCLODEXTRINS, AND METHYLATED-BETA-C…

1994

AbstractThe inclusion behavior of Hydroxypropyl-β-Cyclodextrin (HP-β-Cyd) and of methylated-β-Cyclodextrins, heptakis-(2,6-di-O-methyl)-β-Cyclodextrin (DM-β-Cyd) and heptakis-(2,3,6-tri-O-methyl)-β-Cyclodextrin (TM-β-Cyd), in solution and solid state was compared with that of natural β-Cyclodextrin (β-Cyd) using an anti-inflammatory drug, 4-biphenylacetic acid (BPAA), as a guest molecule. The solubility of BPAA with β-Cyd and β-Cyd derivatives in aqueous solution were determined. Stability constants were calculated by phase solubility method at various pH values and temperatures. The formation of inclusion complexes with β-Cyd and β-Cyd derivatives in the solid slate were confirmed by infra…

Granting Epicurean Wisdom at Rome: Exchange and Reciprocity in Lucretius' Didactic (DRN 1.921-950)

2018

In the first book of De Rerum Natura, Lucretius describes his didactic undertaking as a metaphorical process of gift exchange (1.50-53): the obscure and salvific precepts of Epicurean philosophy, skilfully arranged in hexameters, are said to be 'gifts' (dona) that the poet has prepared with loyal zeal (studio fideli). Such a suggestive depiction of Lucretius' relationship to the work's dedicatee, Gaius Memmius, seems to reflect a relevant functional pattern of De Rerum Natura as a coherent system of communication strategies, variously readapting social models and cultural traditions. The present paper employs the interpretative approach of gift theories – the thought-provoking theories elab…

Libraries and Intellectual Debate in the Late Republic: the Case of the Aristotelian Corpus

2013

The present chapter explores the catalyzing function of libraries in the intellectual debate of the late Roman Republic, by focusing on the significant case of the Aristotelian esoteric corpus. A careful analysis of the literary and historical evidence concerning the use of Peripatetic texts allows to detect the presence of at least two important libraries containing Aristotle's 'pragmatiai' in Roman Italy: Lucullus' collection in Tusculum and Sulla's one in Cumae. Several Greek and Latin sources bear witness to the vicissitudes of such libraries, and the present paper reassesses their accounts in order to point out the close connection between intellectual patterns and material culture - i…

Filodemo, Cicerone, Nepote: a proposito del contesto storico-culturale di Oec. Col. XXII.9-48

2018

Until recently, Philodemus’ treatise On Household Management (Περὶ οἰκονομίας, PHerc. 1424) has been mainly used as a source for the reconstruction of early Epicurean economic thought (especially of Metrodorus’ writing Περὶ πλούτου). Over the past few years, however, scholars have called attention to Philodemus’ creative (yet philosophically orthodox) readaptation of Epicurean ethical and social theories to the needs of contemporary Roman society. Following this scholarly line, the present paper reassesses a passage from On Household Management (col. XXII.9–48) which has so far been interpreted as an unoriginal repetition of Metrodorus’ arguments, and situates it in the cultural context of …

Photochemical preparation of polyaminocyclodextrin-capped silver nanocomposites: mechanistic insights

2016

Photoreduction of silver salts in the presence of three polyaminocyclodextrin derivatives (AmCD, Figure 1) constitutes a simple and straightforward route to obtain stable Ag nanoparticles. These systems have been suitably characterized (UV-vis, FT-IR, TEM, Figure 2) and tested for their antimicrobial activity.1 We observed that Ag photoreduction is effectively induced by irradiation with green light (513 nm); however, best performances are achieved with the use of a light source having at the same time a significant emission in the near-infrared (NIR) region. On the grounds of analytical and kinetic evidences, we hypothesized a multi-step mechanism for nanoparticle formation. In particular,…