1,720,981 research outputs found
Introduzione
No full textIntroduzione al numero monografico della rivista dedicato al Muro di Berlino. L'introduzione contestualizza brevemente il significato delll'erezione del Muro all'interno della storia tedesca
La Repubblica della Carnia e dell’Alto Friuli. Una lotta per la libertà e la democrazia
No full textVerfassung, Konstitution und Repraesentation. Kommentar zu den Beitraegen von Anna Gianna Manca und Hans-Christof Kraus
No full textIl saggio affronta il problema della cesura nella storia politica introdotta dalla rivoluzione del 1848 in Germania. Muovendo dal confronto tra due saggi che aprono il volume, si discute l'insufficienza di storiografie fondate unilateralmente sulla "rottura" o sulla "continuità" con la Restaurazione
Effect-directed analysis of bioactive compounds in Cannabis sativa L. by high-performance thin-layer chromatography
No full textThe scientific interest on the plant Cannabis sativa L., and in particular on its non-psychoactive or fibre-type variety (hemp), has been highly increasing in recent years, due to the pharmaceutical and nutraceutical potential of its bioactive compounds. This plant is indeed characterized by a very rich chemical composition, which encompasses different classes of constituents, such as cannabinoids and terpenes. In this context, the bioanalytical testing of hemp extracts can be difficult and time-consuming. Effect-directed analysis (EDA) by the combination of high-performance thin-layer chromatography (HPTLC) with biological and enzymatic assays represents one of the latest tools available for the rapid bioprofiling of complex matrices, such as plant extracts. In this ambit, the aim of this project was the non-targeted screening of inflorescence extracts from ten different hemp varieties for components exhibiting radical scavenging, antibacterial, enzyme inhibiting and estrogen-like effects. By HPTLC-EDA, the hemp samples exhibited strong antibacterial activities against both Gram-positive Bacillus subtilis and especially Gram-negative Aliivibrio fischeri bacteria, and also estrogen-like activity. They also inhibited α- and β-glucosidase, tyrosinase and acetylcholinesterase. The characterization of two prominently multipotent bioactive compound zones was finally achieved by HPTLC-HRMS and preliminary assigned as cannabidiolic acid and cannabidivarinic acid
Sistemi di istruzione:dalal scuola all'università
No full textSu un lungo periodo, dalla metà del Settecento alla fine del Novecento, il saggio analizza i processi di alfabetizzazione, di educazione, di istruzione tecnica e professionale, di alta formazione universitaria in Europa, con particolare attenzione ai sistemi, alle istituzioni, alle politiche statali, ai corpi docente e studentesco, alle differenze e agli interscambi culturali e di modelli di formazione e di apprendimento tra nazioni del continente europe
Vent'anni dopo:il muro di Berlino
No full textSi tratta del numero monografico della Rivista "Ricerche di Storia Politica", (a.XII ns.) 3/2009, dedicato alla ricostruzione del contesto in cui nacque il muro di Berlino e all'analisi dei comportamenti sociali e politici che l'esistenza del muro generava nelle due Germanie fino al 1989
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
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