1,721,049 research outputs found
The Formation of 2-Hydroxy-but-3-enyl Cyanide from (2S)-Hydroxybut-3-enyl Glucosinolate using Immobilized Myrosinase
No full textIL SISTEMA GLUCOSINOLATI-MIROSINASI DELLE BRASSICACEAE PER IL CONTROLLO DEI PATOGENI DEL SUOLO E DELLA FRUTTA IN POST-RACCOLTA
No full textL’utilizzo degli ITCs prodotti dal sistema GLs-Mir, nel controllo dei patogeni del suolo offre risposte positive in termini di efficacia, gestione della fertilità dei terreni e riduzione dell’impatto ambientale nella coltivazione delle orticole. Il CRA-CIN in questo settore ha svolto un ruolo importante, selezionando genotipi specifici e sviluppando le competenze chimiche e biochimiche per la messa a punto dei mezzi tecnici per la biofumigazione. Tutto ciò ha determinato l’interesse di aziende private che hanno avviato la commercializzazione dei prodotti biofumiganti per un uso come ammendanti nella coltivazione di orticole in coltura protetta e in pieno campo, non solo in agricoltura biologica ma anche nell’agricoltura integrata e convenzionale, dove la tecnica inizia ad essere inserita nei protocolli di coltivazione. Con le sperimentazioni realizzate si è stabilito inoltre che la biofumigazione è una tecnica adatta anche per il trattamento dei frutti in postraccolta dove può contribuire al controllo di specifiche infezioni fungine sebbene l’applicazione debba essere perfezionata perché un uso improprio di questa tecnologia può indurre fitotossicità specialmente nei frutti refrigerati
Going Beyond Counting First Authors in Author Co-citation Analysis
Full text linkThe present study examines one of the fundamental aspects of author co-citation analysis (ACA) - the way co-citation
counts are defined. Co-citation counting provides the data on which all subsequent statistical analyses and mappings
are based, and we compare ACA results based on two different types of co-citation counting - the traditional type that
only counts the first one among a cited work's authors on the one hand and a non-traditional type that takes into
account the first 5 authors of a cited work on the other hand. Results indicate that the picture produced through this non-traditional author co-citation counting contains more coherent author groups and is therefore considerably clearer. However, this picture represents fewer specialties in the research field being studied than that produced through the traditional first-author co-citation counting when the same number of top-ranked authors is selected and analyzed. Reasons for these effects are discussed
Variations on the Author
Full text link“Variations on the Author” discusses two of Eduardo Coutinho’s recent films (Um Dia na Vida, from 2010, and Últimas Conversas, posthumously released in 2015) and their contribution to the general question of documentary authorship. The director’s filmography is characterized by a consistent yet self-effacing form of authorial self-inscription: Coutinho often features as an interviewer that rather than express opinions propels discourses; an interviewer that is good at listening. This mode of self-inscription characterizes him as an author who is not expressive but who is nonetheless markedly present on the screen. In Um Dia na Vida, however, Coutinho is completely absent form the image, while Últimas Conversas, on the contrary, includes a confessional prologue that moves the director from the margins to the center of his films. This article examines the ways in which these works stand out in the filmography of a director who offers new insights into the notion of cinematic authorship
An approach for the estimation of drug prescribing using the defined daily dose methodology and drug dispensation data. Theoretical considerations and practical applications.
No full text
Half-seed analysis: rapid chromatographic determination of the main fatty acids of sunflower seed
No full textThe half seed technique, with some recent modifications of traditional analytic methods, is proposed for selecting sunflower with modified fatty acid composition. A rapid method was used for extracting the oil and for methylating fatty acids (about 3 min per sample). Thin layer chromatography (TLC) plates with activated AgNO3 and / or gas chromatography (GLC) with capillary columns was used to analyze the methylated esters. Half seed, whole seed and meal analysis of sunflower and other oilseed species confirmed the validity of the method with regard to sampling, analytic results and embryo terminability. In addition, GLC using a suitable internal standard can be used to evaluate the percentage oil content of seed. About ten sample per hour can be analysed with GLC versus 20-25 with TLC. These times can be further shortened in practice in the laboratory by partially overlapping some steps
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