1,720,982 research outputs found
Emozioni e sistema nervoso: la forza della musica e il ruolo della neurofisiologia
No full textEmotions are constantly present in our daily lives, arising from external stimuli or from our thoughts and influencing our behaviour. Involuntary responses are mediated by the autonomic nervous system, while most of our actions are controlled by cortical output that we are aware of. Emotions are somewhere in between, we are not always aware of them, but they strongly influence our actions. The deepest and oldest part of our brain is involved in the generation of
emotions, connecting to all our organs and reaching the skin. Of the many emotions we can feel, anxiety is one of the most common and pervasive. It can negatively affect our cognitive performance, but music can powerfully modulate anxiety and many other emotions in both normal subjects and patients. Sympathetic skin response is a neurophysiological technique capable of detecting changes in skin impedande due to involuntary brief production of sweat as our autonomic nervous system follows emotions. This technique can demonstrate and measure the effect of music on our emotions
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
FDG PET Unveils the Course of Paraneoplastic Cerebellar Degeneration: A Semiquantitative Analysis
No full textIn paraneoplastic cerebellar degeneration (PCD), the standard diagnostic workup might be inconclusive, especially in seronegative subtypes. Brain 18F-FDG PET is an accurate supportive diagnostic tool in immune-mediated disorders, but findings in PCD are controversial. Semiquantitative analysis of 18F-FDG PET can meaningfully assist visual assessment in different neurological conditions and has been mainly applied to disclose regional hypometabolism. We describe a seronegative PCD associated with small cell lung cancer in which 18F-FDG PET semiquantitative analysis accurately disclosed the longitudinal pathological changes of brain metabolism occurring in the acute and posttreatment remission stages and paralleling clinical impairment and response to treatment
Review of predictive models for Fusarium head blightand related mycotoxin contamination in wheat
No full textMould growth and mycotoxin production are related to plant stress caused by environmental factors
such as: extreme weather; insect damage; inadequate storage conditions and incorrect fertilization;
these predispose plants to mycotoxin contamination in the field. Fusarium species infect wheat during
the flowering period. In addition to losses of yield, these fungi can also synthesize toxic components
(mycotoxins) in suitable environmental conditions, thus threatening animal and human health. Given
the severe consequences and because mycotoxins affect production throughout the world, the ability
to predict Fusarium head blight (FHB) and deoxynivalenol (DON) and other mycotoxin contamination is
important to reduce the year-to-year risk for producers. Owing to these dangerous consequences in
Argentina, Belgium, Canada, Italy, the United States and in Europe, computer models, based on weather
variables (temperature, rainfall and moisture level), have been developed to predict the occurrence of
FHB and DON contamination in wheat
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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