1,720,990 research outputs found
COVID-19 pandemic and rehabilitation: How protective is social isolation in the care of frail patients (and their caregivers)?
No full textAn adaptive policy for on-line Energy-Efficient Control of machine tools under throughput constraint
Get PDFControlling the machine power state by switching off/on the machine when idle is one of the most promising energy efficient measure for machining processes. Part arrival process is affected by uncertainty and acquiring knowledge to obtain a proper and updated control model is difficult in industrial practice. Hence, control policies should be connected to the shop floor exploiting data acquired on-line. This work extends an on-line time-based policy recently proposed in the literature by including constraints on machine performance. A novel optimization algorithm is proposed to minimize energy consumption while assuring a target production rate and mitigating the risk of incurring in unexpected high energy consumption. Moreover, the policy is also broadened to autonomously adapt the control when the arrival process is non-stationary in time. The benefits of the proposed algorithms are assessed by means of realistic simulated cases and are around 25% of the energy consumed in idle states. Differently from existing studies dealing with the off-line problem, the proposed algorithm learns on-line while acquiring information from the real system
Direct costs of schizophrenia in Italian community psychiatric services
No full textObjective: To estimate resource utilisation and direct costs of treatment for patients with schizophrenia in Italian Community Mental Health Centers (CMHCs). Design: Multicentre, retrospective observational study. CMHCs recruited all patients who attended a follow-up consultation during the period September to December 1998. At enrolment, psychiatrists completed a questionnaire on consumption of resources in the 2 months before recruitment. Setting: 14 CMHCs. Perspective: Italian National Health Service (INHS). Patients: 702 patients with a diagnosis of schizophrenia or other psychotic disorders, defined according to the Diagnostic and Statistical Manual of Mental Disorders-fourth edition. These patients had been followed by the CMHCs for at least 2 years and attended a follow-up consultation either during the period September to December 1998 or on randomly selected days during this period. Patients were classified into seven groups according to their diagnosis. Results: The mean direct cost of patients with schizophrenia in the 2-month observation period was 2 234 475 Italian lire [L] (1154.01 Euro; EUR); direct costs ranged from L.1 545 818 to L.2 775 658 (EUR798.35 to EUR1433.51) by prognostic group. There was wide variability for prognostic groups in the impact of most cost components on total cost. Admissions accounted for between 11.4 and 56.3% of the total cost, daycare centre days for between 11.3 and 35.5%, home visits for 7.8 to 16.4%, and day-hospital days for 5.4 to 32.8%. Anti-psychotics and anxiolytics were the most prescribed drugs and also the most costly. Conclusion: Despite the limitations of the study related to the short period considered, we believe this study offers some interesting information on the burden of schizophrenia, a disease for which its cost has received limited attention so far in Italy
Going Beyond Counting First Authors in Author Co-citation Analysis
Get PDFThe 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
Get PDF“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
Get PDFWe 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
Get PDFWe 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
Epilepsy and everyday life risks A case reference study rationale study design and preliminary results
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