Results 31 to 40 of about 39,627 (253)

Sustainable and Rapid Determination of Two Halogenated Pesticides in a Commercial Formulation by Solid Phase Microextraction and Liquid Phase Chemical Ionization Mass Spectrometry

Separations, 2023
This work presents a sustainable and rapid method for halogenated pesticide analysis without chromatographic separation. The system is composed of a microfluidic open interface (MOI) for solid-phase microextraction (SPME) liquid phase desorption ...
Nicole Marittimo, Genny Grasselli, Adriana Arigò, Giorgio Famiglini, Pierangela Palma, Mansoor Saeed, Simon Perry, Pablo Navarro, Phil Clarke, Mark Brittin, Achille Cappiello   +10 more
doaj   +1 more source

Synthesis of 2-substituted tryptophans via a C3- to C2-alkyl migration

Beilstein Journal of Organic Chemistry, 2014
The reaction of 3-substituted indoles with dehydroalanine (Dha) derivatives under Lewis acid-mediated conditions has been investigated. The formation of 2-substituted tryptophans is proposed to occur through a selective alkylative dearomatization ...
Michele Mari, Simone Lucarini, Francesca Bartoccini, Giovanni Piersanti, Gilberto Spadoni   +4 more
doaj   +1 more source

Spectroscopic and Imaging Analyses on Easel Paintings by Giovanni Santi

Applied Sciences, 2023
The most important painter from Urbino in the last decades of the 15th century (1439 ab.–1494) was Giovanni Santi, the father of Raphael. The lack of scientific literature about Santi’s practice and the possible peculiar role of Urbino in the development
Maria Letizia Amadori, Gianluca Poldi, Giulia Germinario, Jgor Arduini, Valeria Mengacci   +4 more
doaj   +1 more source

Opportune innovazioni e giuste resistenze

CESURA, 2023
Premessa alla sezione monografica dedicata alla sezione monografica (Confronti) Nuove prospettive per la storia diplomatica, dedicata alla New Diplomatic History.
Francesco Storti
doaj   +3 more sources

Irony, historiography, and political criticism : The Porcaria coniuratio [PDF]

, 2020
This article examines Leon Battista Alberti’s 'Porcaria coniuratio', the historical epistle on Stefano Porcari’s conspiracy against Nicholas V, which was discovered by the pope before the conspirators could carry out the plot, in January 1453.
Celati, Marta
core  

Never under Saturn: Girolamo Manfredi, physician and astrologer [PDF]

, 2010
Not ...
Azzolini, Monica
core   +1 more source

Analogies between the Façade of the Palazzo dei Tufi in Lauro and the Graphic Reconstruction of the Porta di Fano by Giuliano da Sangallo

ArcHistoR Architettura Storia Restauro: Architecture History Restoration, 2020
Between 1513 and 1529, Giovanni IV de’ Cappellani, Bishop of Bovino, built Palazzo dei Tufi in Lauro. The name comes from tufa stone ashlars covering the façade.
Riccardo Serraglio
doaj   +1 more source

Una civiltà di ragionieri. Archivi aziendali e distinzione sociale nella Firenze basso medievale e rinascimentale

Reti Medievali Rivista, 2020
Il saggio si propone di fornire una possibile soluzione a un antico enigma che è al tempo stesso storiografico e archivistico: perché i libri contabili basso medievali e rinascimentali sono presenti negli archivi fiorentini (e più in generale toscani ...
Sergio Tognetti
doaj   +1 more source

Plotting the Centre: Bramante’s Drawings for the New St. Peter’s Basilica [PDF]

, 2014
This paper examines the concept of 'centre' in the design and symbolism of the new St Peter's Basilica, executed by Donato Bramante in the early 16th century.
Temple, Nicholas
core   +2 more sources

Il globo del Rinascimento un geode di quarzo

GEOmedia, 2005
Nella complessità iconologica letteraria della fonte ovidiana di Poliziano, l’età dell’oro suddivisa nelle quattro pareti di un carro, singole insegne di campioni di famiglie signorili nel torneo fiorentino del 1475, la ‘Carrée’ a cielo aperto dagli ...
Francesca Salvemini
doaj   +2 more sources