1,721,172 research outputs found
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
Aspetti neurologici ed anatomopatologici in un emangiosarcoma canino metastatico al SNC
No full textIn questa comunicazione, viene presentato un caso di emangiosarcoma splenico non rotto in cui la sintomatologia iniziale, di natura neurologica, è stata causata da una massiva metastatizzazione al sistema nervoso centrale (SNC). Gli esami autoptico macroscopico ed istopatologico hanno confermato la natura emangiosarcomatosa delle lesioni. Questo caso illustra una presentazione clinica meno comune dell’emangiosarcoma splenico in cui i sintomi sono stati causati non tanto dalla massa primaria che ancora risultava integra ma soprattutto dalle massive lesioni metastatiche diffuse soprattutto al SNC ed ai polmoni e conferma ulteriormente la grande capacità di metastatizzazione di questa forma neoplastica purtroppo molto comune nel cane
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
Aggressive behavior and self-harm in Borderline Personality Disorder: The role of impulsivity and emotion dysregulation in a sample of outpatients
No full textImpulsivity has often been related to aggressive and self-mutilative behavior in Borderline Personality Disorder (BPD). Many authors focused on the key role of emotion dysregulation in explaining vulnerability to dysfunctional behavior in BPD in addition to trait impulsivity. Furthermore, recent works have shed light on a gap in empirical research concerning the specific mechanisms by which a lack of affective regulation produces aggression proneness. The purpose of the study was to investigate the role of impulsivity and emotion dysregulation in determining vulnerability to aggression and deliberate self-harm in a sample of BPD outpatients. Enrolled patients with BPD (N =79) completed a comprehensive assessment for personality disorder symptoms, trait impulsivity, emotional dysregulation, aggressive and self - mutilative behavior. Trait impulsivity significantly predicted both aggressive and self-mutilative proneness. Furthermore, emotion dysregulation was found significantly to account for the vulnerability to aggression and self-injury, in addition to the variance explained by impulsivity. In conclusion, these findings support evidence that emotion dysregulation plays an important role in increasing the risk of dysfunctional behavior in impulsive BPD individuals
Sleep disturbances in individuals with first episode psychosis and clinical high-risk states: A systematic review
Full text linkBackground: Sleep disturbances are increasingly recognized as relevant components of the psychopathology of psychosis, emerging early in the illness trajectory and persisting over time. Indeed, individuals with first-episode psychosis (FEP) commonly experience disruptions in sleep architecture, including reduced sleep efficiency, increased sleep latency, and altered time spent in various sleep stages. These abnormalities are also reported in individuals with Clinical High-Risk (CHR) states, showing a significant correlation with cognitive and affective impairments. Methods: We conducted a systematic search across four main electronic databases, including PubMed, Web of Science, EMBASE, and PsycINFO, to specifically identify studies examining sleep parameters in FEP and CHR subjects compared to healthy controls. Eligibility criteria included quantitative and qualitative assessments of sleep. Results: The final selection consisted of 25 studies corresponding to 1255 patients and 342 healthy controls. Increased sleep latency and alterations in slow-wave sleep were frequently reported. These findings highlight the pervasiveness of sleep disturbances in individuals with early psychosis, though further research is needed to clarify their clinical significance. Evidence also suggests bidirectional relationships between sleep disturbances and psychotic symptoms, with sleep disruptions potentially exacerbating cognitive and emotional dysfunctions in FEP and CHR individuals. Conclusions: Sleep disturbances in FEP/ CHR populations are pervasive and may reflect underlying neurobiological mechanisms implicated in psychosis. These abnormalities represent modifiable targets for early intervention, with the potential to improve clinical and functional outcomes. Future research should explore longitudinal associations and the efficacy of sleep-focused interventions in the early stages of psychotic disorders
Adaptation and Psychometric Evaluation of the Italian Version of the Attitude to Personality Disorder Questionnaire (APDQ)
No full textThe aim of the current study was to validate the Italian version of the Attitude Toward Personality Disorders Questionnaire (APDQ), assess its psychometric properties, and investigate nurses' attitudes toward patients with personality disorders. An Italian version of the APDQ was produced and administered to nurses working in the Bologna Mental Health Department. The instrument demonstrated good psychometric proprieties and a robust structure and supported the five-factor solution of the original English version. Findings showed that nurses experience negative feelings toward patients with personality disorders and found them difficult to care for. Attitude was found to be better among less experienced nurses and among those working in inpatient settings. The Italian version of the APDQ appears to be a useful instrument for assessing clinicians' attitudes in a variety of settings. Italian nurses were inclined to perceive these patients in a negative manner, frequently expressing aversive feelings
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
Increased recognition of depression in primary care. Comparison between primary-care physician and ICD-10 diagnosis of depression.
No full textBACKGROUND: Underrecognition and undertreatment of depression in primary care has been regarded as a major public health problem. In contrast, some studies found that among patients labeled as depressed by primary-care physicians (PCPs), a relevant proportion do not satisfy international diagnostic criteria for depression. The aims of this study are: (1) to assess disparity between PCP diagnosis and research diagnosis of depression; (2) to compare antidepressant treatment in concordant and discordant cases of depression. METHODS: Data are gathered from a national survey on depressive disorders in primary care, conducted with the collaboration of 191 PCPs. Three hundred and sixty-one PCP patients were evaluated, and their psychiatric diagnosis was established by the 'unaided' PCPs and by using a research interview for depression. RESULTS: PCPs recognized 79.4% of cases of depression and prescribed antidepressants to 40.9% of them. Yet, 45.0% of patients labeled as depressed by the PCPs were not cases of depression according to ICD-10 criteria; 26.9% of false-positive cases received an antidepressant. Globally, 35% of antidepressants for 'depression' were prescribed to false-positive cases. CONCLUSIONS: Underrecognition and undertreatment of depression in primary care seem to be less alarming. Conversely, PCP diagnoses of depression appear to be more inclusive than psychiatric diagnostic criteria. A possible consequence of this apparently more inclusive diagnostic threshold may be an excessive use of antidepressants. These changes require a corresponding change in research, toward efficacy and safety of the treatment of milder cases, and in education, toward the distinction between the management of mild and severe cases of depression. Copyright (c) 2005 S. Karger AG, Basel
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