1,720,961 research outputs found
Virtual reality and cardiac rehabilitation: a new middle-range theory to outline its mechanism of effectiveness
No full textEffects of Listening to Live Singing in Patients Undergoing Hemodialysis: A Randomized Controlled Crossover Study
No full textBackground: Participation in music therapy is associated with improved psychological and physical indices among chronically ill patients. Listening to music during hemodialysis treatments positively affects patients’ hemodynamics, laboratory values, quality of life, and physical symptoms. The effect of live singing during hemodialysis treatments, however, has not previously been studied. Methods: A total of 24 participants with a diagnosis of end-stage kidney disease participated in the study. The vocalist was a musically trained dialysis nurse. Twelve of the patients listened to 15 min of live singing during 6 consecutive hemodialysis sessions, while the other 12 underwent standard hemodialysis. After a washout period of 2 days, the two groups were reversed. Results: Listening to live music was associated with improvements in systolic and diastolic blood pressure, better quality of sleep, fewer cramps, and reduced anxiety/depression, pain, and itching (p <.05, all values). Conclusions: Listening to live music during hemodialysis is an effective and potentially low-cost therapy for the dialysis care team to employ during hemodialysis treatments
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
Effects of Virtual Reality in Patients Undergoing Dialysis: Study Protocol
No full textDialysis is often considered slow, repetitive, and with programmed intervals. Patients often perceive it as time taken from their lives with a sense of ineluctability and emptiness, engendering a negative emotional and cognitive perception of the world and one's place in it. Today, it is possible to improve the quality of life of patients during hemodialysis using virtual reality (VR). This creation of a true multisensory experience may absorb the patient's perceptions during hemodialysis, improving his/her quality of life. An Italian multicenter, longitudinal experimental study will be conducted with a randomized, pre-post test design, with balanced allocation 1:1, in parallel groups with a control group in the standard care of patients diagnosed with chronic renal failure who are, undergoing hemodialysis treatment. A sample of 186 patients calculated with sample size (power = 80%, β = 0.2, α = 0.05) will be randomized into an experimental group exposed to VR, and a control group in standard care. The 2 groups will be studied over a period of 1 month, with 12 applications of VR and with measurements of the following outcomes: anxiety, fatigue, pruritus, arterial pressure, heart rate, respiration rate, and duration of the session at each hemodialysis session. This is the first international experimental protocol that examines the application of VR in patients undergoing hemodialysis. If the results show statistically and clinically significant differences, the VR could be an additional holistic intervention, which is evidence based, linked to the humanization of chronic, repetitive interventions, complementary to and synergistic with standard of care
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
Beneficial effects of listening to classical music in patients with heart failure: a randomized controlled trial.
No full textDispelling 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
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