1,723,992 research outputs found
Becker′s nevus syndrome
No full textBecker′s nevus is a cutaneous hamartoma characterized by circumscribed hyperpigmentation with hypertrichosis. Becker′s nevus syndrome is an association of Becker′s nevus with unilateral breast hypoplasia and muscle, skin, and/or skeletal abnormalities. We here report a case of a 15 year-old female who presented with bilateral Becker′s nevus over her groins, thighs, vulva, and in front of the neck from the age of 5 years. She had associated mental retardation, delayed development of mile stones, delayed puberty, dwarfism, depressed nasal bridge, long slender digits, crowding of lateral toes, valgus deformity of first metatarsophalangeal joint, mitral valve prolapse, muddy conjunctiva with hypertrophic and hyperpigmented caruncle of both eyes, ichthyosis, brownish hair, and absence of axillary and pubic hair. On histopathological examination collagen hamartoma underneath the Becker′s nevus was found
Bilateral symmetrical congenital giant Becker′s nevus: A rare presentation
No full textBecker′s nevus is a focal epidermal hypermelanotic disorder. It morphologically presents as unilateral, hyperpigmented, hypertrichotic patch on upper trunk, proximal upper extremities and arms. However, Becker′s nevus presenting as bilateral, symmetrical patches is rare. Herein, we report a rare case of giant Becker′s nevus with bilateral symmetrical presentation in an adult male
Becker′s nevus with neurofibromatosis type 1
No full textNeurofibromatosis type 1 is an autosomal dominant disorder which primarily affects the growth and development of neural cell tissues. It presents as multiple tumor-like growths over the skin that arises from the nerves and is associated with other abnormalities like pigmentation over the skin and bone deformities. Becker′s nevus or hairy pigmented epidermal nevus is a benign cutaneous hamartoma which is characterized by hyperpigmented macule with hypertrichosis. It is rarely associated with neurofibromatosis. We report a 22-years-old male with coexistent Becker′s nevus and type 1 neurofibromatosis
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
Stücklistenbasiertes Komponenten-Konfigurationsmanagement
No full textStücklistenbasiertes Komponenten-Konfigurationsmanagement / S. Becker, S. Overhage. - In: Workshop Komponentenorientierte Betriebliche Anwendungssysteme : Tagungsband : 25./26. Februar 2003, Augsburg / Klaus Turowski. (Hrsg.). Ges. für Informatik, Arbeitskreis 5.10.3, Komponentenorientierte Betriebliche Anwendungssysteme. - Augsburg, 2003. - S. 17-3
Mapping the challenges in making the transition to taught postgraduate study in Psychology
No full textThe paper presents a model of the challenges facing undergraduates transitioning to taught postgraduate studies developed from a Grounded Theory analysis of interviews with current and prospective taught postgraduates from a range of Psychology programmes. The model reveals the importance of the visibility of current and recent taught postgraduates in influencing the decision making practices of prospective students. The process of transition to taught postgraduate studies is characterised by early decision making as for many students graduation is no longer seen as the natural end point of their educational careers. Analysis also reveals that in spite of expectations of heavier workloads and increased intensity, the reality exceeds expectations. Key areas for support identified by participants include tailored study skills support and more clarity around what constitutes ‘masters’ level work
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