1,721,091 research outputs found
Il disease management e la progettazione di programmi assistenziali integrati nel sistema sanitario italiano
No full textLa sostenibilità economica del sistema di assistenza sanitario nazionale, nonché la sua capacità di assicurare su tutto il territorio un’uniforme disponibilità di servizi assistenziali quantitativamente e qualitativamente soddisfacenti per gli utenti, sono attualmente oggetto di un ampio dibattito.
In questo contesto, si sta affermando il Disease Management (DM), una strategia di cura preventiva che, attraverso la promozione di una prospettiva sistematica, intergrata e coordinata, favorisce la ridefinizione dell’offerta di servizi assistenziali secondo un approccio multicomponente.
Nel contributo sono analizzate le scelte di coordinamento dell’azione cooperativa messe in atto per l’applicazione del DM e i conseguenti risvolti sul processo di progettazione organizzativa. Inoltre, sono investigate le opportunità offerte dall’ICT per supportare la comunicazione e lo scambio di informazioni fra gli operatori sanitari coinvolti in iniziative di DM
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
Appropriate Similarity Measures for Author Cocitation Analysis
Full text linkWe provide a number of new insights into the methodological discussion about author cocitation analysis. We first argue that the use of the Pearson correlation for measuring the similarity between authors’ cocitation profiles is not very satisfactory. We then discuss what kind of similarity measures may be used as an alternative to the Pearson correlation. We consider three similarity measures in particular. One is the well-known cosine. The other two similarity measures have not been used before in the bibliometric literature. Finally, we show by means of an example that our findings have a high practical relevance.information science;Pearson correlation;cosine;similarity measure;author cocitation analysis
SYNTHESIS, REACTIONS, AND X-RAY STRUCTURES OF THE FUNCTIONALIZED ISOCYANIDE COMPLEXES [FE2(MU-CNC(O)SR)(MU-CO)(CO)2(CP)2](CP =ETA-C5H5, R = ME OR ET) AND OF THEIR CARBYNE AND CARBENE DERIVATIVES
No full textThe cyanate ion NCO- inserts into the C-S bond of [Fe2(μ-CSR)(μ-CO)(CO)2(cp)2]+ (cp = η-C5H5, R = Me or Et), to give the isocyanide-bridged complexes [Fe2{μ-CNC(O)SR}(μ-CO)(CO)2-(cp)2] (1). These derivatives exist in solution as a mixture of cis and trans isomers with the strong electron-withdrawing CNC(O)SR group bridging in both forms. The X-ray crystal structure of complex (1b; R = Et) [monoclinic, a = 9.418(3), b = 14.827(3), c = 12.793(4) Å, β = 97.28(3)°, Z = 4, space group P21/n] reveals the CO groups in cis position relative to the Fe-Fe bond. The nitrogen atom in (1) is alkylated or protonated to generate the cationic aminocarbyne complexes [Fe2{μ-CN(R′)C(O)SR}(μ-CO)(CO)2(cp) 2]+ (2; R′ = Me, Et, or H) which do not display cis-trans isomerization at room temperature. In accord with their carbyne nature, the μ-C atom in complexes (2) adds H- or CN- (X) to form the carbene derivatives [Fe2{μ-C(X)N(R′)C(O)SR}(μ-CO)-(CO)2(cp) 2] (3) which are not fluxional. The X-ray structure of (3a; X = CN, R′ = R = Me) [orthorhombic, a = 9.238(3), b = 8.142(1), c = 24.712(2) Å, Z = 4, space group P212121] shows that the molecule retains the cis geometry of the parent species (1) and (2), with the bulkier μ-carbon substituent N(Me)C(O)SMe on the less-hindered carbonyl face of the complex
Dispelling the Myths Behind First-author Citation Counts
Full text linkWe conducted a full-scale evaluative citation analysis study of scholars in the XML research field to explore just how different from each other author rankings resulting from different citation counting methods actually are, and to demonstrate the capability of emerging data and tools on the Web in supporting more realistic citation counting methods. Our results contest some common arguments for the continued
use of first-author citation counts in the evaluation of scholars, such as high correlations between author rankings by first-author citation counts and other citation
counting methods, and high costs of using more realistic citation counting methods that are not well-supported by the ISI databases. It is argued that increasingly available digital full text research papers make it possible for citation analysis studies to go beyond what the ISI databases have directly supported and to employ more
sophisticated methods
RUTHENIUM COMPLEXES WITH BRIDGING FUNCTIONALIZED ALKYLIDENE LIGANDS SYNTHESIS OF [RU2CP2(CO)2(MU-CO)(MU-C(X)N(ME)CH2PH)] (X=H,CN) AND MOLECULAR-STRUCTURE OF THE CN DERIVATIVE
No full textThe isocyanide complex [Ru2Cp2(CO)3(CNCH2Ph)], obtained by the reaction of [RU2CP2(CO)4] With CNCH2Ph in the presence of Me3NO, has been N-alkylated, yielding the cationic mu-alkylidyne complex [RU2CP2(CO)3{mu-CN(Me)CH2Ph}]SO3CF3. The compound yielded undergoes nucleophilic addition using NaBH4 or NnBu4CN at the mu-C alkylidyne carbon to give the novel mu-aminoalkylidene complexes [Ru2Cp2(CO)2(mu-CO)(mu-C(X)N(Me)CH2Ph}] (X = H, CN). The derivative with X = CN adopts the expected geometry and an idealized C(s) symmetry if the phenyl substituent is ignored. The relevant bond distances are as follows: Ru-Ru, 2.711(1) angstrom, Ru-mu-C(carbene), 2.090(4) angstrom (ave.); C(carbene)-N, 1.477(5) angstrom; N-C(alkyl), 1.474(5) angstrom (ave.)
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