1,720,965 research outputs found
Further characterisation of Hb Okazaki [b93 (F8) Cys-Arg], a rare hemoglobin variant found in a family from Naples, Italy.
No full textHb Okazaki [β93(F8)Cys-Arg], was first described in
1984 as unstable hemoglobin variant having high oxygen
affinity but normal phenotype, and appearing by isoelectric focusing of the hemolysate, under the Author's analytical conditions, as a sharp band migrating near to the
position of HbA.
1
We have encountered this variant in the
course of an hemoglobinopathy survey, in three members
of an italian family (from Naples)
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
Valutazioni aminoacidemiche in fase terminale di insufficienza epatica irreversibile in una paziente sottoposta a bypass digiuno-ileale termino-laterale per obesità grave: implicazioni diagnostiche e prognostiche
No full textAminoacidemic evaluations in terminal stage of irreversal hepatic failure in a patient submitted to end-to-side jejunoileal bypass for morbid obesity: diagnostic and prognostic implications
No full textVenous thromboembolism prophylaxis by variable doses of parnaparin in super-obese patients: Preliminary report
No full textBackground: Severe obesity is a risk factor for venous thromboembolism.
The aim of the study is to establish the right dosology
of parnaparin, a LMWH, which gives the highest prophylaxis
efficacy compared with the lowest hemorrhagic risk and to confirm
the LMWH efficacy.
Methods: These preliminary data concern 10 patients with BMI
>50 kg/m2. We made a clinical evaluation, researching thrombophilic
markers, and an instrumental evaluation, with venous
echocolordoppler and scintigram of lower limbs and of ilio-caval
axis before surgery and after 7 days, and perfusional lung scintigram
before surgery and after 9 days. We gave a parnaparin
dose of 3,200 I.U. (0.3 ml) in the first day, a dose of 4,250 I.U. (0.4
ml) for 2 days, and a dose of 6,400 I.U. (0.6 ml) for the other two
preoperative days and during hospitalization. Parnaparin was
given at 8.00 a.m. every day, assaying the level of Xa and IIa factors
in the blood, Xa/IIa ratio, in order to verify and to confirm the
possibility of an equal efficacy with lower doses. After discharge,
we used a dose of 6,400 I.U. (0.6 ml), prolonged for 30 days at
home.
Results: We found no hemorrhagic events. Only one patient,
who interrupted the parnaparin treatment because of allergy at 5th day, had a pulmonary embolism on the 30th day. In the
remaining 9 patients there were neither clinical nor instrumental
thromboembolic events.
Conclusions: According to these preliminary data, parnaparin
proved to be a very safe and efficacious drug for thromboembolic
venous prophylaxis in super-obese patients undergoing bariatric
surgery
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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