1,720,974 research outputs found
A rare case of sepsis due to Corynebacterium macginleyi from central venous catheter in an elderly woman
No full textCorynebacterium macginleyi is a gram positive rod that causes especially ocular infections: since now only six elderly cases of extraocular infection are described. A 76 years old bedridden woman with a central venous catheter was hospitalized for 10 days of persistent fever. She was treated before with vancomicin and then with imipenem. The clinical conditions improved and the patient was discharged after two weeks of hospitalization. Among recognised risk factors for this infection the advanced age, indwelling devices and immunosuppression seem the most important. On the other hand, the antibiotics of choice are glycopeptides while the association of another antibiotic is recommended in our opinion only in severe clinical manifestatio
A case of hypocalcemia
No full textHypocalcemia is a common disorder in the elderly,
affecting 10% of the elderly population as a whole, 18% of
those in hospital and 36% of those in long-term care [1, 2].
Many conditions can lead to hypocalcemia in adults young
and old, e.g. primary hypoparathyroidism, chronic renal
failure, gastrointestinal diseases (such as celiac disease or
Crohn’s disease), drugs (particularly diuretics, bisphosphonates
and antiepileptics), acute pancreatitis and thyroid
surgery. Rare causes of hypocalcemia include isolated
vitamin 1.25(OH)D3 deficiency or vitamin 1.25(OH)D3
resistance. Another, often neglected cause of hypocalcemia
relating to functional parathyroid deficiency is hypomagnesemia. Considering the important role of magnesium in a normal
health status, and the potentially serious consequences
of hypomagnesemia, clinicians need to identify and treat
this condition as soon as possible, thus avoiding serious
risks for the patient, particularly in the elderl
A new diagnosis of left main coronary artery atresia in a very old woman
No full textJudging from angiographies performed for
suspected obstructive coronary disease, coronary artery
anomalies (CAAs) affect approximately 1.3% of the general
population. Among such CAAs, left main coronary artery
(LMCA) atresia is a rare finding; 28 cases have been reported since 1997: 15 pediatric cases and 13 adult cases.
Although the surgical reconstruction of a two-coronary
arterial system is the procedure of choice for pediatric
patients (to provide an adequate anterograde flow and
make the left-sided myocardium independent of the inadequate
collateral flow coming from the right coronary
artery3), a coronary artery by-pass might be considered for
elderly patients, particularly if they have atherosclerosis,
although a medical approach was preferred as the first-line
therapy for this patient because it was felt that a coronary
artery bypass was unsuitable because of the narrow diameter of her coronary vessels and her old ag
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
A case of naturally evolving gout in an elderly man
No full textGout is a common disorder in adults that can lead to severe organ decline, disability and impaired quality of life due to the formation of periarticular tophi. We report a case of massive tophaceous gout in a 78-year-old man with a 16-year-long history of untreated disease. The patient gradually became disabled, his renal function deteriorated, and he finally died of sepsis. Our case demonstrates that chronic gout not only affects the joints, but is also associated with organ function decline and can, even nowadays, lead to death
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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