1,720,993 research outputs found
Confini tra disturbo ossessivo-compulsivo e depressione: Considerazioni psicopatologiche
No full textAt first sight, obsessivity and depression seem to be two different phenomena, even opposite in some aspects. However, it is clinically common to find obsessive-compulsive features together with depressive symptoms: Whereas the discriminant power of self-report questionnaires for obsessions and compulsions is not very high when Obsessive-Compulsive Disorders and Major Depression are compared. However, clinical and biological studies suggest a clear discrimination between this two disorders. The psycopathological analisys allows both to understand the apparent analogies and to show the essential structural differences between obsessive-compulsive and depressive phenomena
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
Possible involvement of opioid systems in obsessive-compulsive disorder: Psychopathological considerations [Possibile coinvolgimento del sistema oppioide nel disturbo ossessivo-compulsivo e relative considerazioni psicopatologiche]
No full textThe effects of exogenous opioids are completely opposite to anxiety symptomatology and suggest the existence of a relationship between opioid systems and Anxiety Disorders. The involvement of opioid systems in Obsessive-Compulsive Disorder (OCD) is suggested by its analogy with other Anxiety Disorders and by the role of such system in disorders of the obsessive-compulsive spectrum (Tourette's Disorder, Substance-Related Disorders, Eating Disorders, Impulse-Control Disorders); some experimental evidence in patients affected by OCD and the effect of therapy with opioid agonists and antagonists further support this hypothesis. The involvement of endogenous opioids in Posttraumatic Stress Disorder is widely supported. Opioid involvement in Panic Disorder is suggested by pharmacological evidence, such as naltrexone-induced Panic Attacks; moreover, the opioid system may decrease activity of the locus coeruleus. Finally, patients affected by Generalized Anxiety Disorder have higher beta-endorphin plasma levels than controls, before facing stressful situations. Therefore, these data suggest a possible opioid involvement in core psychopathological aspects of OCD, related to pleasure and reward systems
The asthenia issue in obsessive-compulsive disorder [II problema della astenia nel disturbo ossessivo-compulsivo]
No full textOne of Pierre Janet's most important clinical intuition was to correlate the concept of psycho-asthenia to the complexity of obsessive patients and its nuclear role in obsessive-compulsive psychopathology. Clinical experience suggests that patients affected by Obsessive-Compulsive Disorder show a great sensitivity to fatigue or lack of rest: this vulnerability condition seems to have a specific effect, because all weakness states may worsen obsessions and compulsions. Starting from these considerations and from few and aspecific existing instruments, we elaborated a questionnaire to assess obsessive- compulsive characteristics-related asthenia. The questionnaire includes 31 items assessing different aspects of asthenia: fatigue, tiredness, energy, need of sleep, related to an increase of obsessive-compulsive symptoms and was administered to healthy subjects and to patients with different DSM-IV disorders (Obsessive-Compulsive Disorder, Depressive Disorders, Panic Disorder). Statistical and psychopathological analysis show that the instrument discriminates the obsessive patients from healthy individuals and from patients with panic disorder. However, it does not detect differences between Obsessive-Compulsive Disorder and Mood Disorders, suggesting, for the former, a primary weakness of cortical function and for the latter weakness of the subcortical areas
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
Pulmonologist-Administered Balanced Propofol Analgosedation during Interventional Procedures: An Italian Real-Life Study on Comfort and Safety
No full textPropofol-based sedation provides faster recovery than midazolam-based regimens with similar safety and comfort during video flexible bronchoscope (VFB) procedures. Pulmonologist-administered propofol "balanced"analgosedation (PAP-BAS) is still debated in Italy. In this real-life study, PAP-BAS safety and comfort during VFB procedures were investigated. We analysed prospectively the subjects undergoing elective VFB procedures in the Pulmonology and RICU of Arezzo Hospital between February and July 2019. PAP-BAS combined low propofol and meperidine doses titrated to achieve an RASS score between 0 and -3. The primary end-point was the complications' rate. Secondary end-points were as follows: the relation between propofol's dose and a subject's comfort assessed with a VAS, recovery time according to a modified Aldrete score ≥9, RASS, and subjects' will of undergoing the procedure again. We collected postprocedure symptoms' intensity too. Our 158 study patients (67 years; SD ± 14; 64% males) incurred in 25% of complication, fully resolved with medical therapy. Neither recourse to ventilator support nor death was reported. Intraprocedural comfort was good (94% of VAS score ≤2). Among postprocedural symptoms, cough was the most frequently reported, in 36% of the cases. Although half of subjects remembered the procedure, 90% of them would have repeated it, if necessary. 85% of them recovered from procedures within 10 minutes. Complications, VAS, and recovery time were not correlated with propofol dose. To our knowledge, this is the first Italian study showing that PAP-BAS to perform a VFB procedure is safe, well tolerated with a quick recovery. Randomised controlled trials are warranted to confirm these preliminary results
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