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Search Results: 1 - 10 of 81 matches for " Bernini "
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Consonance of Complex Tones with Harmonics of Different Intensity  [PDF]
Antonio Bernini, Federico Talamucci
Open Journal of Acoustics (OJA) , 2014, DOI: 10.4236/oja.2014.42008
Abstract: The starting point of this study is the theory of tonal consonance by Plomp and Levelt. The major reference point is the theory of Critical Band and its use for evaluating consonance of simple tones. On the basis of such empirical criterion, our aim consists in providing a method of estimating the value of consonance of complex tones, by taking account not only of the number of harmonics, but also of the intensity of the partials which contribute to forming the tone. By introducing a specific algorithm, the level of consonance of a chord of complex tones is expressed in terms both of frequency differences and sound intensity of the partials. The results give rise to a series of considerations and applications, ranging from displaying the order of consonance of all intervals within the octave up to evaluating the hierarchy of chords in the frame of a musical scale.
Norman Holland, Literature and the Brain
Marco Bernini
Between , 2011,
Abstract: Per quanto sia possibile prendere visione e coscienza anche dall’Italia, in traduzione, del “cognitive turn” che ha coinvolto negli ultimi vent’anni discipline come la filosofia della mente, la psicologia e la più recente fenomenologia di stampo per lo più statunitense e anglosassone, lo stesso non può dirsi per gli approcci cognitivi alla letteratura e ad altre arti. Tralasciando meriti e demeriti di una simile lacuna editoriale, un’ipotetica traduzione italiana dell’ultimo lavoro di Norman Holland porterebbe con sé una notevole tracciatura bibliografica di questa svolta interdisciplinare negli studi letterari e non solo.
Multimodal Treatment of Gastric Cancer: Surgery, Chemotherapy, Radiotherapy, and Timing
Marco Bernini,Lapo Bencini
International Journal of Surgical Oncology , 2012, DOI: 10.1155/2012/246290
Abstract:
Multimodal Treatment of Gastric Cancer: Surgery, Chemotherapy, Radiotherapy, and Timing
Marco Bernini,Lapo Bencini
International Journal of Surgical Oncology , 2012, DOI: 10.1155/2012/246290
Abstract:
Enumerating permutations avoiding more than three Babson - Steingr\'? msson patterns
Antonio Bernini,Elisa Pergola
Mathematics , 2007,
Abstract: Not long ago, Claesson and Mansour proposed some conjectures about the enumeration of the permutations avoiding more than three Babson - Steingr\'\i msson patterns (generalized patterns of type $(1,2)$ or $(2,1)$). The avoidance of one, two or three patterns has already been considered. Here, the cases of four and five forbidden patterns are solved and the exact enumeration of the permutations avoiding them is given, confirming the conjectures of Claesson and Mansour. The approach we use can be easily extended to the cases of more than five forbidden patterns.
Vincular pattern posets and the M?bius function of the quasi-consecutive pattern poset
Antonio Bernini,Luca Ferrari
Mathematics , 2014,
Abstract: We introduce vincular pattern posets, then we consider in particular the quasi-consecutive pattern poset, which is defined by declaring $\sigma \leq \tau$ whenever the permutation $\tau$ contains an occurrence of the permutation $\sigma$ in which all the entries are adjacent in $\tau$ except at most the first and the second. We investigate the M\"obius function of the quasi-consecutive pattern poset and we completely determine it for those intervals $[\sigma ,\tau ]$ such that $\sigma$ occurs precisely once in $\tau$.
Estrutura da vegeta??o em florestas de mangue do estuário do rio Paraíba do Sul, Estado do Rio de Janeiro, Brasil
Bernini, Elaine;Rezende, Carlos Eduardo;
Acta Botanica Brasilica , 2004, DOI: 10.1590/S0102-33062004000300009
Abstract: a structural analysis of the mangrove forest at the paraíba do sul river estuary was performed using the stand method. the stands were demarcated in two points both at the forest edge and interior. the results indicate that average height varied from 6.3 to 9.9m; dbh varied from 7.44 to 13.4cm; average basal area varied from 14.5 to 35.3m2.ha-1, and average density varied from 1,920 to 3,400 trunks.ha-1 (trees > 1m height). these structural parameters did not differ between the edge and the interior, but the contribution of each species varied between the zones. avicennia germinans (l.) stearn. was the dominant species (60%), followed by rhizophora mangle l. (25%), and laguncularia racemosa (l.) gaertn. (15%). these results demonstrate that the mangroves forest at the paraíba do sul estuary has a better structural development than other mangrove sites found in the rio de janeiro state (e.g., those mangrove forests located at the sepetiba and guanabara bays).
6) Structural variation in mangrove forests of the estuary of the River Itabapoana, ES-RJ
Elaine Bernini,Carlos Eduardo Rezende
Biotemas , 2010,
Abstract: We analyzed the structure of 13 sites of mangrove vegetation in the Itabapoana estuary by use of the methodology of permanent plots. Considering all individuals >1m within the plots, the average height of forests ranged from 4.0 to 10.1m, the average DBH (diameter at breast height) ranged from 3.7 to 13.5cm, the basal area of living individuals was 13.5 to 48.3m2.ha-1, and the density of trunks was 1,475 to 21,000 trunks.ha-1. Overall, there was a greater contribution of the live basal area in relation to diameter >10.0cm (59%). Forests with better structural development exhibited a dominance of Avicennia germinans (L.) Stearn, while Laguncularia racemosa (L.) Gaertn. f. was dominant in less-developed forests. Our results showed that environmental features and biotic factors contribute to mangrove differentiation among sites. Such differences highlight the peculiarities of each mangrove and emphasize the need of specific management plans for ecosystem maintenance.
A Convenient and Safe O-Methylation of Flavonoids with Dimethyl Carbonate (DMC)
Roberta Bernini,Fernanda Crisante,Maria Cristina Ginnasi
Molecules , 2011, DOI: 10.3390/molecules16021418
Abstract: Dietary flavonoids exhibit beneficial health effects. Several epidemiological studies have focused on their biological activities, including antioxidant, antibacterial, antiviral, anti-inflammatory and cardiovascular properties. More recently, these compounds have shown to be promising cancer chemopreventive agents in cell culture studies. In particular, O-methylated flavonoids exhibited a superior anticancer activity than the corresponding hydroxylated derivatives being more resistant to the hepatic metabolism and showing a higher intestinal absorption. In this communication we describe a convenient and efficient procedure in order to prepare a large panel of mono- and dimethylated flavonoids by using dimethyl carbonate (DMC), an ecofriendly and non toxic chemical, which plays the role of both solvent and reagent. In order to promote the methylation reaction under mild and practical conditions, 1,8-diazabicyclo[5.4.0]undec-7-ene (DBU) was added in the solution; methylated flavonoids were isolated in high yields and with a high degree of purity. This methylation protocol avoids the use of hazardous and high toxic reagents (diazomethane, dimethyl sulfate, methyl iodide).
New Lipophilic Piceatannol Derivatives Exhibiting Antioxidant Activity Prepared by Aromatic Hydroxylation with 2-Iodoxybenzoic Acid (IBX)
Roberta Bernini,Maurizio Barontini,Carmela Spatafora
Molecules , 2009, DOI: 10.3390/molecules14114669
Abstract: Piceatannol (E-3,5,3’,4’-tetrahydroxystilbene) is a phytoalexin synthesized in grapes in response to stress conditions. It exhibits strong antioxidant and antileukaemic activities due to the presence of the catechol moiety. To modify some physical properties like solubility, and miscibility in non-aqueous media some new previously unreported piceatannol derivatives having lipophilic chains on the A-ring were prepared in good yields by a simple and efficient procedure. The key step was a chemo- and regioselective aromatic hydroxylation with 2-iodoxybenzoic acid (IBX). The new compounds showed antioxidant activity and seemed promising for possible applications as multifunctional emulsifiers in food, cosmetic and pharmaceutical fields.
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