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Papagelopoulos, Leonidas, NX51012
No full textThis record was harvested from a previous catalogue system and will be withdrawn in 2025. Information in this record may be superseded or incomplete. Visit this record in UMA's new catalogue at: https://archives.library.unimelb.edu.au/nodes/view/409366Surname: PAPAGELOPOULOS. Given Name(s) or Initials: LEONIDAS. Military Service Number or Last Known Location: NX51012. Missing, Wounded and Prisoner of War Enquiry Card Index Number: 41734.224810
Item: [2016.0049.41637] "Papagelopoulos, Leonidas, NX51012
Self-citation in publishing
No full textThe role of impact factor in evaluating the value of scientific publications is critically reviewed.
Other possible criteria for evaluation are assessed and proposed
Side effects of radiation in musculoskeletal oncology
No full textRadiation therapy is applied for systemic effects to patients with bone and soft tissue tumors and for local effects that facilitate the surgical procedure. However, while it remains an essential treatment of cancers, radiation therapy is associated with unwanted complications. The purpose of this review is to summarize information regarding the complications of radiation in musculoskeletal oncology and their management. Because preoperative radiotherapy is associated with an increased risk of wound complications and postoperative radiation is associated with an increased risk of postradiation fractures, the physician requires additional information in deciding on the best method of treatment, and such information is provided in this revie
Going Beyond Counting First Authors in Author Co-citation Analysis
Get PDFThe 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
Get PDF“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
Get PDFWe 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
Clinicopathological features, diagnosis and treatment of clear cell sarcoma/melanoma of soft parts
No full textBackground: Clear cell sarcoma of tendons and aponeuroses is a rare, high grade malignant soft tissue tumor resembling melanoma and soft tissue sarcomas. Clinical and Imaging Presentation: The median age at presentation is 27 years and the most common location are the foot and the ankle. MR imaging typically shows a benign looking, well defined, homogenous mass; on T1-weighted MR images, it is usually homogeneous and isointense or slight hyperintense to muscle, whereas on T2-weighted MR images, it is usually more heterogeneous with variable signal intensity. Pathology: Microscopically, the clear cell appearance is due to the accumulation of glycogen. The cells show no or minimal pleomorphism, and paucity of mitotic figures that is in concordance with the slow-growing behavior of the tumor. Scattered multinucleated giant cells are commonly present; areas of necrosis and melanin pigment may be identified. The reciprocal translocation t(12;22)(q13;q12) is observed in more than 90% of clear cell sarcoma cases. In addition, polysomy of chromosome 8 has been observed as a secondary abnormality in many cases of clear cell sarcoma. The differential diagnosis of clear cell sarcoma should include melanoma, epithelioid malignant peripheral nerve sheath tumor, melanotic schwannoma, paraganglioma-like dermal melanocytic tumor, perivascular epithelioid cell neoplasms (PEComas), cellular blue naevus, synovial sarcoma (monophasic type), alveolar soft part sarcoma, paraganglioma, epithelioid sarcoma and carcinomas. Treatment and Prognosis: The treatment of choice for clear cell sarcoma is wide surgical resection. If complete excision is achieved, adjuvant treatments are not unnecessary. Chemotherapy is predominantly employed in patients with metastatic disease. The 5 to 20 year survival of the patients with clear cell sarcoma range from 67% to 10%. The rates of local recurrence ranges up to 84%, late metastases up to 63%, and metastases at presentation up to 30%
Megaprosthetic reconstruction for malignant bone tumors: complications and outcomes.
No full textLimb salvage surgery and reconstruction of bone defects is challenging in orthopaedic oncology. Allogenic and autologous bone grafting are well-recognized methods for bone reconstruction. Custom-made and modular, cemented and cementless, mega-prostheses provide the modular options needed intraoperatively to bridge variable bone defects. However, these megaprostheses have worse long-term results compared to conventional total joint replacements. Mechanical failure, aseptic loosening, infection, dislocation, skin necrosis, extensor mechanism ruptures and periprosthetic fractures are acknowledged complications of orthopaedic oncology procedures. These complications are due to the large defects that need to be bridged with a more difficult fixation in the diaphysis of the native bone, the more complex restoration of joint biomechanics, the extensive soft-tissue resection, the lengthy surgical operations, and the need for chemotherapy and radiation therapy. Because of the difficulties and the high rate of complications associated with the implantation of such highly modular systems, the treatment of patients with malignant bone tumors should only be carried out in specialized centers. © 2008 by Begell House, Inc
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