1,721,014 research outputs found
Trends of 'urolithiasis: interventions, simulation, and laser technology' over the last 16 years (2000-2015) as published in the literature (PubMed): a systematic review from European section of Uro-technology (ESUT)
No full textPURPOSE: To look at the bibliometric publication trends on 'Urolithiasis' and aspects of treatment and training associated with it over a period of 16 years from 2000 to 2015. To this end, we conducted this study to look at the publication trends associated with urolithiasis, including the use of simulation, laser technology, and all types of interventions for it.MATERIALS AND METHODS: We performed a systematic review of the literature using PubMed over the last 16 years, from January 2000 to December 2015 for all published papers on 'Urolithiasis'. While there were no language restrictions, English language articles and all non-English language papers with published English abstracts were also included. Case reports, animal and laboratory studies, and those studies that did not have a published abstract were excluded from our analysis. We also analyzed the data in two time periods, period-1 (2000-2007) and period-2 (2008-2015).RESULTS: During the last 16 years, a total of 5343 papers were published on 'Urolithiasis', including 4787 in English language and 556 in non-English language. This included papers on URS (n = 1200), PCNL (n = 1715), SWL (n = 887), open stone surgery (n = 87), laparoscopic stone surgery (n = 209), pyelolithotomy (n = 35), simulation in Endourology (n = 82), and use of laser for stone surgery (n = 406). When comparing the two time periods, during period 2, the change was +171% (p = 0.007), +279% (p < 0.001), and -17% (p = 0.2) for URS, PCNL, and SWL, respectively. While there was a rise in laparoscopic surgery (+116%), it decreased for open stone surgery (-11%) and pyelolithotomy (-47%). A total of 82 papers have been published on simulation for stone surgery including 48 papers for URS (67% rise in period-2, p = 0.007), and 34 papers for PCNL (480% rise in period-2, p < 0.001). A rising trend for the use of laser was also seen in period 2 (increase of 126%, p < 0.02, from 124 papers to 281 papers).CONCLUSIONS: Published papers on intervention for Urolithiasis have risen over the last 16 years. While there has been a steep rise of URS and minimally invasive PCNL techniques, SWL and open surgery have shown a slight decline over this period. A similar increase has also been seen for the use of simulation and lasers in Endourology.</p
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
Lithotripsy
No full textLithotripsy - Novel Technologies, Innovations and Contemporary Applications provides a comprehensive overview of urolithiasis management. Lithotripsy, the act of stone fragmentation, achieved either extracorporeally (ESWL) or intracorporeally (ISWL), has experienced tremendous progress in the last 40 years. ESWL, using an electrohydraulic energy source, which was introduced in the early 1980s, revolutionized the management of stones for which there were very limited options besides open surgery. Two chapters in this book discuss the history of ESWL and its contemporary applications and indications. The remaining four chapters discuss intracorporeal energy sources for stone fragmentation, including pneumatic, ultrasonic, and laser sources. Whereas pneumatic and ultrasound lithotripsy are the current workhorses of endourologists, particularly in the management of large and medium-sized kidney stones, lasers, on the other hand, are predominantly used for small renal and most ureteral stones. Due to innovations and rapid developments, laser technology is quickly replacing other energy sources for most kidney stones as well
koamabayili/VECTRON-author-checklist: VECTRON author checklist
No full textWe have done our best to complete the author checklist relating to the use of animals in the hut study. Note that the objective for the hut study was to evaluate the IRS treatment applications for residual efficacy against Anopheles mosquitoes, including the local An. coluzzii mosquito population. Cows were only used to attract mosquitoes into the huts and no tests were carried out directly on the cows. The author checklist is intended for use with studies where experiments are carried out on animals, which is why we have had such difficulty in completing this for the hut study, as many of the questions do not relate to how the cows were used
Intravesical instillations of mitoxantrone, interferon-a for the prevention of recurrences of superficial bladder cancer: a comparative study
No full textAIM: The comparative evaluation of the efficacy and safety of intravesical instillation of mitoxantrone, interferon-α for the prevention of recurrences of superficial bladder cancer. METHODOLOGY: Two hundred eight patients (mean age: 62.05 years) suffering from superficial bladder cancer resected by TUR, where divided in group A (control patients), group B (10 mg of mitoxantrone), group C (20 mg of mitoxantrone) and group D (100 MUI of interferon-α). All patients were followed-up with urine cytology, cystoscopy and biopsies. RESULTS AND CONCLUSIONS: The incidence of recurrences was 64.44% in group A, 33.92% in B, 31.48% in C and 28.3% in D (p<0.005), while progress was recorded in 22.22%, 12.5%, 14.81% and 7.54% of the patients, respectively. The mean recurrence time was 9.03 months in group A, 13.74 in B, 14.24 in C and 17.4 months in D. Toxicity of grade 1-3 was recorded in 23.21% of group B, 31.48% of group C, and 9.43% in group D.ΣΚΟΠΟΣ: Η συγκριτική αξιολόγηση της αποτελεσματικότητας και της ασφάλειας των ενδοκυστικών εγχύσεων μιτοξαντρόνης, ιντερφερόνης-α στην πρόληψη των υποτροπών των επιφανειακών όγκων της ουροδόχου κύστης. ΜΕΘΟΔΟΛΟΓΙΑ: Διακόσιοι οκτώ ασθενείς (μέση ηλικία: 62.05 έτη) πάσχοντες από επιφανειακό καρκίνο κύστης που εξαιρέθηκε με TUR, διαχωρίστηκαν στην ομάδα Α (μάρτυρες), στην ομάδα Β (10 mg μιτοξαντρόνης), στην ομάδα Γ (20 mg μιτοξαντρόνης) και στην ομάδα Δ (100 MUI IFNAα-2b). Οι ασθενείς παρακολουθήθηκαν με κυτταρολογική ούρων, κυστεοσκόπηση και λήψη βιοψιών. ΑΠΟΤΕΛΕΣΜΑΤΑ-ΣΥΜΠΕΡΑΣΜΑΤΑ: Η συχνότητα υποτροπών (p<0.005) ήταν 64.44% στην ομάδα Α, 33.92% στην Β, 31.48% στην Γ και 28.3% στην Δ, ενώ εξέλιξη νόσου διαπιστώθηκε αντίστοιχα στο 22.22%, 12.5%, 14.81% και 7.54% των ασθενών. Ο μέσος χρόνος εμφάνισης των υποτροπών (p<0.001) ήταν 9.03 μήνες στην Α, 13.74 στην Β, 14.24 στην Γ και 17.4 στην Δ. Τοξικότητα βαθμού 1-3 διαπιστώθηκε στο 23.21% της ομάδας Β, 31.48% της Γ και 9.43% της ομάδας Δ
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