1,720,964 research outputs found
Erratum to: Proximal humeral fractures in elderly patients (Aging Clinical and Experimental Research, (2013), 25, S1, (85-87), 10.1007/s40520-013-0078-x)
No full textIn the original publication of the article, the name of the third author was incorrectly published as C. Capra. However, the correct name should read as P. Capra
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
Orthopaedic and plastic surgery collaboration in resolution of plantar heloma and metatarsalgia using lipofilling: a retrospective evaluation
Full text linkBackground: Plantar heloma is a keratotic disorder that can be described as a circumscribed area of thickening with a central core that may penetrate the dermis. Although often considered a minor complaint, longstanding lesions can be debilitating and severely impact on person's quality of life. We present the first retrospective case series at long-term follow-up about the use of plantar lipofilling as a treatment for metatarsalgia caused by plantar heloma. Materials and methods: Six patients affected by plantar heloma associated to external metatarsalgia underwent plantar lipofilling. The surgical session was performed as an outpatient procedure. Clinical evaluation was performed using the AOFAS lesser metatarsophalangeal-interphalangeal (MTP-IP) score. Results: Mean AOFAS lesser MTP-IP score improved from a preoperative score of 66.6 ± 3.2 points (range 47-77 points) to a post-operative score of 92.8 ± 2.7 points (range 86-95 points); all patients were satisfied with the outcome at the final follow-up. Post-operative clinical examination at final follow-up showed an increase in thickness of the subcutaneous layer and a decrease of dermal layer thanks to the supporting and trophic action of fat cells. Conclusions: Plastic regenerative procedures applicated to a typical foot and ankle surgery field, such as metatarsal overloading, metatarsalgia and forefoot problems, should be encouraged to allow new treatment horizons
A comprehensive and narrative review of historical aspects and management of low-grade hallux rigidus: conservative and surgical possibilities
No full textHallux rigidus, Latin for Stiff Toe, is characterized by an osteoarthritic degeneration of the articular surfaces of the first metatarsophalangeal joint. The aim of this literature narrative overview is to summarize and expose the great amount of management concepts and information, including the well-codified operative procedures and the more up to date knowledge about non-operative and surgical treatment of hallux rigidus. This may provide current information for physicians, medschool attendants and researchers. A comprehensive literature search using PubMed database has been performed, up to April 1, 2017. Several different types of treatment are described in the literature for low-grade hallux rigidus. The management for hallux rigidus can involve a variety of therapeutic interventions, conservative or operative. Hallux rigidus is a complex disease characterized by several clinical and pathological findings, and to achieve optimal results, surgical treatment for low-grade forms should be chosen between several surgical techniques depending on the degree of arthritis and other different clinical conditions
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
La displasia congenita dell’anca
No full textLa displasia congenita dell’anca (DCA) è un difetto di sviluppo
presente alla nascita a livello dell’articolazione coxo-femorale
che di rado guarisce spontaneamente e che spesso evolve in
quadri complessi di sublussazione o lussazione. La clinica varia
a seconda del momento dell’osservazione e del grado di
displasia; la tempestività della riduzione è fondamentale nel trattamento,
che deve essere iniziato al momento della diagnosi.
Il trattamento può essere conservativo o chirurgico: il primo si
basa sull’uso di ortesi, mentre il secondo comprende la riduzione
a cielo chiuso, la riduzione a cielo aperto, le osteotomie di
bacino e di femore, fino alla sostituzione protesica. La gestione
del paziente giovane adulto affetto da DCA rappresenta una
sfida nel cercare di preservare un corretto rapporto articolare.
Grazie alle metodologie di screening la necessità di eseguire
interventi tardivi è diminuita negli ultimi anni. Nei rari casi osservati
nella nostra esperienza nei paesi in via di sviluppo la
riduzione a cielo aperto di lussazioni irriducibili ha permesso di
ottenere ottimi risultati clinici ad un follow-up medio di 4 anni. Le
protesi di superficie, risparmiando tessuto osseo, rappresentano
una valida alternativa alla protesi totale in pazienti giovani con
artrosi dell’anca secondaria a displasia di basso grado
- …
