1,720,989 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
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
Microsurgical latissimus dorsi flap in a case of breast aplasia caused by radiation therapy
No full textThe use of ionizing radiation in the breast region while a patient is at developmental age is still responsible for most monolateral hypoplasias and iatrogenic-based breast asymmetries. These alterations often involve several anatomical structures, thus causing severe hypoplasia of the breast and muscle tissues and stiffness of soft tissues, with atrophic and cicatricial skin. Reconstruction methods vary from case to case, but most of the time reconstruction with a homolateral latissimus dorsi with or without a breast implant seems most suitable. In some cases, however, this is not a viable alternative due to particular general and local conditions, making it necessary to consider other solutions. We present the case of a young prepubertal patient who came under our observation due to a radiotherapy outcome in the right breast and thoracic region; she had been previously subjected to breast reconstruction elsewhere, with the fitting of a subcutaneous prosthesis. Due to the patient's particular general and local conditions and the pathological involvement of the homolateral thoracic musculature, to improve the clinical picture, we deemed it appropriate to use the microsurgical reinnervated contralateral latissimus dorsi muscle, which so far has enabled us to obtain considerable and lasting results
Versatilita del lembo anterolaterale di coscia nella ricostruzione di diversi distretti anatomici, l'esperienza della chirurgia plastica e ricostruttiva di Trieste
No full textOccult breast cancer during reduction mammoplasty: case report.
No full textAIM:
Breast carcinoma occurring in routine reduction mammaplasty is rare.
MATERIAL OF STUDY:
In our Breast Unit each patient eligible for any breast surgery is routinely evaluated by preoperative breast imaging. We reported the clinical case of a woman with an infiltrating lobular breast cancer detected during surgical reduction mammaplasty despite a negative preoperative bilateral mammography.
RESULTS:
The clinical case was discussed at multidisciplinary breast cancer meeting in order to evaluate the different therapeutic options. In conjunction with general surgeons, oncologists, radiologists and radiotherapists, and upon patient's ultimate decision, a conservative tumor approach was chosen: first-level axillary node dissection followed by adjuvant chemotherapy and hormonotherapy.
DISCUSSION:
The mean frequency of breast cancer detection during reduction mammaplasty ranges from 0.06% up to 4%. There are many possible treatment choices for these patients ranging from radical mastectomy to more conservative approaches dealing with lumpectomy followed by radiation therapy or chemotherapy and radiation therapy alone. The therapeutical plan must be discussed by a multidisciplinary team and many tumors and patients characteristics should be evaluated in the decision making process.
CONCLUSION:
All patients selected for breast aesthetical surgery must be screened, during preoperative workup, for breast cancer. Combination of three diagnostic modalities increases sensitivity and reaches the diagnostic accuracy of 93.2%. The reported case stresses the importance of an oncological approach to breast surgery even in case of planned aesthetical procedures
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
koamabayili/VECTRON-author-checklist: VECTRON author checklist
No full textWe have done our best to complete the author checklist relating to the use of animals in the hut study. Note that the objective for the hut study was to evaluate the IRS treatment applications for residual efficacy against Anopheles mosquitoes, including the local An. coluzzii mosquito population. Cows were only used to attract mosquitoes into the huts and no tests were carried out directly on the cows. The author checklist is intended for use with studies where experiments are carried out on animals, which is why we have had such difficulty in completing this for the hut study, as many of the questions do not relate to how the cows were used
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