1,720,987 research outputs found
Rainfall forecast in tropical-equatorial environments: a case study of the Seychelles zone
No full textAN OVERVIEW AND OUR APPROACH IN THE TREATMENT OF MALIGNANT CUTANEOUS TUMOURS OF THE HAND
No full textIntroduction: Diagnosis of malignant cutaneous tumours of the hand is often difficult because of the different anatomic structures present in this region and yet clinicians must be able to distinguish typical benign entities from life-threatening or limb-threatening malignant diseases. Due to the hand's complex structures located in a small area, surgeons must evaluate constantly the balance of inadequate surgery against functional and cosmetic aspects. Thus, a multidisciplinary approach is recommended for a correct diagnosis and treatment design. Materials and methods: Between 2006 and 2017, 354 consecutive patients with basal and squamous cell carcinomas, and melanoma of the hand were retrospectively analysed at the Department of Plastic and Reconstructive Surgery at the University of Palermo, treatment was surgical for all of them; also radio- and chemotherapy were necessary based on the histological diagnosis. Results: The most common tumour was basal cell carcinoma (BCCs), followed by squamous cell carcinoma (SCCs). Melanoma was the most frequent lesion diagnosed in the digits. Radical excision was the main treatment of choice. In 29 cases (11 with SCC, 18 with melanoma) axillary lymphadenectomy was performed, because of lymph nodes metastases. In the follow up, the spread of cancer to distant organs caused the death in three cases. Recurrence rate was higher in case of infiltrative SCCs and BCCs. Conclusions: The major references provide only limited information on malignant soft-tissue tumours of the hand. Our retrospective study aims to present the most commonly observed malignant soft-tissue tumours of the hand, analysing their causes, their objective and instrumental evaluation, and their treatments
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
Validation of the Italian version of the Stanford Presenteism Scale in nurses
No full textAbstract
AIMS:
To ascertain the validity and reliability of the Italian version of the Stanford Presenteeism Scale (SPS-6).
BACKGROUND:
Presenteeism has been associated with a work productivity reduction, a lower quality of work and an increased risk of developing health disorders. It is particularly high among nurses and needs valid tools to be assessed.
METHODS:
A validation study was carried out from July to September 2014. A three-section tool, made of a demographic form, the Stanford Presenteeism Scale (SPS-6) and the Perceived Stress Scale (PSS-10) was administered to a sample of nurses, enrolled in three Italian hospitals.
RESULTS:
Cronbach's α for the entire sample (229 nurses) was found to be 0.72. A significant negative correlation between SPS and perceived stress scores evidenced the external validity. The factor analysis showed a two-component solution, accounting for 71.2% of the variance. The confirmatory factor analysis showed an adequate fit.
CONCLUSION:
The Italian SPS-6 is a valid and reliable tool for workplace surveys.
IMPLICATIONS FOR NURSING MANAGEMENT:
Since the validity and reliability of SPS-6 has been confirmed for the Italian version, we have now a valid tool that can measure the levels of presenteeism among Italian nurses
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
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
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