131,437 research outputs found
The Nuanced Association Between Empathy and Sexual Aggression
No full textLevitan, J., & Vachon, D. D. (2020). The Nuanced Association Between Empathy and Sexual Aggression. Manuscript submitted for publication
Boston University Percussion Ensemble, December 2, 2006
No full textThis is the concert program of the Boston University Percussion Ensemble performance on Saturday, December 2, 2006 at 8:00 p.m., at the Boston University Concert Hall, 855 Commonwealth Avenue, Boston, Massachusetts. Works performed were Mudra by Bob Becker, Invention #1 by Daniel Levitan, Modulation 6.1 by Brett Abigaña, Invention #2 by D. Levitan, Refrains by Steven Stucky, Invention #3 by D. Levitan, and Hand to Hand by Chris Gendall. Digitization for Boston University Concert Programs was supported by the Boston University Center for the Humanities Library Endowed Fund
Randomised Control Study Comparing the Haemodynamic Changes to Intubation using Levitan Optical Stylet alone Versus Intubation using Levitan Optical Stylet along with Macintosh Laryngoscope
No full textEndotracheal intubation and laryngoscopy are very essential tools in the hands of anaesthesiologist in maintaining airway. Airway management is the fundamental aspect of anaesthetic practice, emergency and critical care medicine. Endotracheal intubation incur haemodynamic responses like increase in heart rate, systolic blood pressure, diastolic blood pressure and mean arterial pressure. Since the upper airway is highly innervated, airway instrumentation results in significant haemodynamic responses.
Anaesthesiologist found a technique of intubation which minimized the stimulation of the upper airway. Levitan optical stylet gained its importance, since its introduction by Dr. Richard Levitan. The shorter length resembles standard stylet making it useful in every laryngoscopy, handling and shaping of the tracheal tubewhile offering a fibreoptic intubation and immediate visual confirmation of intratracheal placement. The primary objective of this study was to compare the haemodynamic responses to intubation using Levitan optical stylet alone versus intubation using levitan optical stylet along with Macintosh laryngoscope. Secondary outcome measures the ease of intubation, intubation time with two techniques, complications and failure rate. We recruited 80 patients in this prospective study, after obtaining ethical committee approval. These patients were aged between 18-60 yrs belonging to ASA I and ASA II with MPC I and MPC II and thyromental distance >6.5 cm. Hypertensive patients, difficult airway and cardiovascular patients were excluded from the study. They were divided into two groups. Group A – intubation carried with Levitan optical stylet, Group B - intubation carried out with Levitan optical stylet along with Macintosh laryngoscope. These patients were evaluated for the haemodynamic responses at preintubation, postintubation (0min), 1min, 3min, 5min and 10 min respectively. The time taken for intubation, ease of intubation in both the groups were also noted down.
Postoperatively patients were monitored for complications such as sorethroat, hoarseness of voice and bleeding. These results were tabulated and analysed using SPSS software version 22. The two groups were comparable in terms of age, weight and sex. Other parameters such as ASA, thyromental distance, interincisor gap were also comparable. The stress response associated with endotracheal intubation was more with group B (patients intubated with Macintosh laryngoscope) than with group A (intubation with Levitan alone) at post intubation 0min,1min and 3 min as the p valve was 0.00. The mean time taken for intubation in group A (55 seconds) was longer than group B (20 seconds) and the p value was 0.00 and found to be statistically significant. The success rate of intubation in group B was 100% whereas in group A was 95%. The failure rate of intubation was 5% in group A. No serious complications were encountered in both the groups. Hence we concluded that Levitan optical stylet was more superior than conventional Macintosh laryngoscope in the aspect of haemodynamic responses
MeSH term explosion and author rank improve expert recommendations
No full textInformation overload is an often-cited phenomenon that reduces the productivity, efficiency and efficacy of scientists. One challenge for scientists is to find appropriate collaborators in their research. The literature describes various solutions to the problem of expertise location, but most current approaches do not appear to be very suitable for expert recommendations in biomedical research. In this study, we present the development and initial evaluation of a vector space model-based algorithm to calculate researcher similarity using four inputs: 1) MeSH terms of publications; 2) MeSH terms and author rank; 3) exploded MeSH terms; and 4) exploded MeSH terms and author rank. We developed and evaluated the algorithm using a data set of 17,525 authors and their 22,542 papers. On average, our algorithms correctly predicted 2.5 of the top 5/10 coauthors of individual scientists. Exploded MeSH and author rank outperformed all other algorithms in accuracy, followed closely by MeSH and author rank. Our results show that the accuracy of MeSH term-based matching can be enhanced with other metadata such as author rank
Landscape Painting in Russian Fine Art after Levitan. The Ivanovo Region in Painting: A Century’s Experience
No full textThe article discusses the issues of regional art schools and the place of landscape in the modern classification of genres in art based on the material of the intermuseum exhibition project The Ivanovo Region in Painting. The 20th-21st Centuries, conceived and implemented in Ivanovo in 2024. The author indicates the stages of formation and development of the landscape genre in Russian painting up to the 20th century, finding some parallels with the history of landscape painting in English art. The project of the Ivanovo museum community, where more than 60 works of landscape painting were presented, leads the author to the conclusion that after I.I. Levitan, for over a century, the Volga motifs have given an impulse of inspiration to subsequent generations of artists of the Ivanovo Region. In their works, they created artistic images of the cities of the region, such as Yuryevets, Palekh, Plyos, Kineshma, and Shuya, which have gone beyond mere geographical names and become landmarks on the cultural map of Russia, symbolizing “Russianness”, Russian landscape, and the Russian soul. In the author’s opinion the exhibition project is a vivid evidence of the existence of an independent regional art school of landscape painting. It is argued that landscape, along with historical painting, assumes particular importance among all other genres, especially in times of social crises associated with the danger of the loss of national identity
Going Beyond Counting First Authors in Author Co-citation Analysis
No full textThe 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
"Closing the R&D Gap, Evaluating the Sources of R&D Spending"
No full textBoth spending and tax policies have been implemented in the United States with the goal of stimulating private sector research and development (R&D). Karier questions whether current R&D policy, especially the research and experimentation tax credit, can contribute to closing the gap between nondefense expenditures on R&D in the United States and such expenditures in other countries, such as Japan and Germany. He also explores possible changes to our current R&D policy to make it more effective.
Dispelling the Myths Behind First-author Citation Counts
No full textWe 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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