1,721,055 research outputs found
“Comparison between spinal anaesthesia and sciatic-femoral block for arthroscopic knee surgery.”
No full textWe compared spinal anesthesia and sciatic-femoral block for arthroscopic knee surgery in terms of hemodynamic changes, intraoperative anesthesia, postoperative analgesia, postoperative motor block and bladder function, side effects, and patient satisfaction.
METHODS:
Thirty-two patients were randomised into 2 groups: Group B (sciatic-femoral block with mepivacaine 1% 15 + 25 mL, 120 mm/35 mm 22-gauge needles and ElectroNerve Stimulator) and Group S (unilateral spinal anesthesia with 7 mg of hyperbaric bupivacaine 0.5% and 25-gauge Sprotte needle in L2-L3 space). We recorded pain, together with hemodynamic parameters (baseline, 5, 10, 15, 30 min), utilising Numerical Rating Scale (NRS) during the tourniquet application and during the surgical procedures, anesthesia quality, orthopedic evaluation for intraoperative liberty of knee movement. During the postoperative period we recorded at 2, 4 and 6 h: postoperative analgesia, motor block, first urine output, side effects, first requirement for analgesic drug, patient satisfaction and costs.
RESULTS:
The only significant differences between the 2 groups (P<0.05) were the heart rate changes at 10, 15, 30 min with an increase in Group B and a decrease in Group S, and the first urine output at 200+/-69 min in Group B versus 269+/-66 min in Group S.
CONCLUSION:
In conclusion the sciatic-femoral nerve block is a valid alternative to spinal anesthesia for arthroscopic knee surgery, leading to a faster discharging from the hospital
Towards a tool for LTL synthesis with bounded-energy constraints
No full textMCMAS is an open-source model checker specialised in logics for multi-agent systems (MAS), in particular logics for strategic reasoning, but which at the moment can only handle qualitative objectives. We propose a first step towards extending MCMAS to certain quantitative strategic logics where the quantitative aspects have the form of energy constraints. We show that the existence of strategies for a coalition of agents for objectives given as a combination of LTL formula and bounded energy constraint can be reduced to the same problem for pure LTL objectives. Using this reduction, we run some experiments with MCMAS to solve quantitative strategic problems. Copyright © 2019 for this paper by its authors
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
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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