1,721,038 research outputs found
A cluster randomized trial to assess the impact of clinical pathways for patients with stroke: rationale and design of the Clinical Pathways for Effective and Appropriate Care Study
No full text
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
Polyvinyl butyral-based composites with carbon nanotubes: Efficient dispersion as a key to high mechanical properties
Full text linkEven if the carbon nanotubes (CNTs) and their derivatives are commonly used as reinforcing phase in composite materials, also in commercial products, their tendency to agglomerate generally determines a scarce dispersion, thus not maximizing the effect due to the second phase. In this article, a perfect dispersion of highly entangled nanotubes was achieved by using a very simple approach: exploiting the dispersing effect of a low-cost polymer, polyvinyl butyral (PVB), coupled with standard ultrasound sonication. Several dispersion approaches were tested in order to develop a consistent and widely applicable dispersion protocol. The tape casting technology was subsequently used to produce 100 to 300 μm thick PVB-matrix composite tapes, reinforced by multiwall CNTs dispersed according to the optimized protocol. Their mechanical properties were evaluated, and a simple model was used to demonstrate that the effective dispersion of CNTs is the key to obtain significantly improved properties
Effect of introducing a care pathway to standardize treatment and nursing of schizophrenia
No full textSviluppo di linee guida locali e Profili di Cura per il trattamento della schizofrenia in un dipartimento di salute mentale
No full textMethodological issues in the design and sample size estimation of a cluster randomized trial to evaluate the effectiveness of clinical pathways
No full textCare pathways in obstetrics: the effectiveness in reducing the incidence of episiotomy in childbirth
No full textAIM:
To develop a care pathway for childbirth.
BACKGROUND:
Care pathways are emerging as an effective tool to improve clinical and organizational performance.
METHODS:
A pre- and postimplementation analysis model was used to evaluate the effect of introducing a care pathway for childbirth. Key outcome indicators and costs were reviewed to compare the traditional care processes with those of the care pathway. The study involved 380 women.
RESULTS:
There was a significant reduction in episiotomy rate (from 14.90% to 8.6%, P = 0.02) in patients being cared for using a care pathway approach; however, there were no differences in caesarean section and in perineal wound rates. The average costs per patient on the care pathway were euro 1278.42 ( pound 873.64) compared with euro 1,146.87 ( pound 783.74) preimplementation. The study also demon- strated an increase in patient satisfaction for women cared for using the care pathway approach.
CONCLUSIONS:
The care pathway proved to be a valid methodological approach to childbirth, allowing healthcare workers to efficiently share the care of the women, guaranteeing safe and effective care
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