1,720,960 research outputs found
Clozapine-induced persistent hiccup in a patient with Alzheimer's disease.
No full textWe report the onset of clozapine-induced persistent hiccup in a 68-year-old man with diagnosis of probable Alzheimer's disease, according to NINCDS-ADRDA criteria. In our patient, clozapine undoubtedly represents the key factor in the induction of hiccup. Indeed, the fact that re-challenge resulted in re-appearance of hiccup may be considered as a strong indication of causal relationship.
To our knowledge, clozapine-induced hiccup has never been described previously in the literature.
PMID:16024169[PubMed - indexed for MEDLINE
The diagnostic importance of the isolated downward gaze ophtalmoplegia in progressive supranuclear palsy
No full textDescription (reporting the actual words used in written letters) of the neuropsychological and psychopathological modifications produced by dopaminergic treatment in a young patient with Parkinson's disease.
No full textAbstract
Although it is an undeniable fact that dopaminergic therapy has greatly improved the quality of life and prognosis of patients with Parkinson's disease, various and serious adverse events correlated to dopaminergic drugs are not uncommon. Among these, those of neuropsychological and psychopathological nature are of particular importance, being capable of causing an upheaval in the basic personality of the patient. To this regard, the authors report the actual words of a patient himself that are far more convincing that any considerations we may express. In our opinion, the overwhelming impact of dopaminergic treatment on the psychopathological and neuropsychological equilibrium of all parkinsonian patients should unfailingly be carefully evaluated and pondered, particularly in the early onset forms of the disease.
PMID:18814889[PubMed - indexed for MEDLINE
Low androgenization index in elderly women and elderly men with Alzheimer's disease
No full textThe authors investigated whether testosterone levels and testosterone availability differ between older lean subjects with and without Alzheimer's disease (AD). Sex hormone binding globulin (SHBG) and estradiol levels were higher, whereas the free androgenization index (FAI) was lower, in lean subjects with AD than in lean subjects without AD. Factors involved in the increase of SHBG secretion could have an important role in the lower testosterone availability of subjects with AD
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
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