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Los objetivos de este trabajo fueron determinar la prevalencia del ciberbullying entre los participantes del estudio, así como conocer el impacto psicológico tanto en cibervíctimas como en ciberagresores, analizando además las diferencias de género de dicho impacto. Método: la muestra estuvo constituida por 639 estudiantes de la Universidad Pontificia Bolivariana, seccional Bucaramanga, con una media de edad de 17,6 años (chicos N = 303, chicas N = 334). Para ello se emplearon los siguientes instrumentos: (a) Escala de ciberagresiones; (b) Escala de cibervictimización; y (c) Symptom Assessment-45 Questionnaire (SA-45). Los resultados evidencian que un 27,5% de la muestra ha sido agredida en alguna ocasión, así como que 26,7% ha sido acosador durante el último año. Por otro lado, los resultados demostraron que existe un impacto psicológico (escalas del SA-45) tanto en las cibervíctimas, como en los ciberagresores. Conclusiones: Respecto a las diferencias de género en ciberbullying se evidenciaron solo en algunas escalas (primordialmente depresión, ansiedad, sensibilidad interpersonal y somatización), aunque no fueron significativas entre los síntomas psicológicos reportados en este estudio (salvo en las escalas relacionadas con Somatización y Ansiedad fóbica). © Revista Colombiana de Ciencias Sociales.

This paper is a diachronic analysis of a corpus of 180 titles drawn from Case Reports (CRs) published in the BMJ and BMJ Case Reports between 1840 and 2009. The corpus was divided into three blocks, and the frequency of occurrence of 69 text-internal variables was recorded in each title. Between-block comparisons were carried out, and Student's t-tests IntroductionSince before Hippocrates, case reports (CRs) have made, and still make, a valuable contribution to the advancement of medical science (Friedell 1973; Morgan 1985;Pascal 1985;Simpson and Griggs 1985;Morris 1989). McCarthy and Reilly (2000) report, for example, that a search of the MEDLINE database from 1996 to 2000, using the Medical Subject Heading term 'case report' , retrieved more than 140,000 citations. More recently a search of Web of Science using the same MSH term retrieved 160 articles from 1953 and 4,011 from (cited in Gawrylewski 2007. Communication & MedicineGiven the unpredictable nature of medicine, many medical professionals will indeed have come across a patient who has not been a textbook case. The patient may have presented in an unusual way, had a strange pathology, or reacted to a medical intervention in a manner that has not been seen before. The publication of such novelties and curiosities as CRs has for many centuries been a fundamental way of sharing knowledge and conveying medical experience, and throughout history there have been famous CRs that have helped shape the way we view health and disease (Jamjoom et al. 2009;Salager-Meyer 2012).In recent years, though, and especially since the 1990s (Maisonneuve et al. 2010), CRs have come under scrutiny and disfavor among some members of the medical scientific community, and they are now frequently relegated to the lowest rank in the hierarchy of study design. Indeed, there are those who argue, for example, that CRs are 'passé, trivial ' (Rose and Corn 1984), and that they are increasingly irrelevant in current medical practice and education (Yadav 2006) because their obscurity and rarity appeal only to a specialized few, and because they add little to everyday medical practice. What is more, so argue the 'opponents' of CR publishing, their anecdotal nature lacks the scientific rigor of large, wellconducted studies. CRs have therefore fallen down the hierarchical ladder of medical evidence, and many 64 Françoise Salager-Meyer et al. medical journals, for 'shortage of page space' , now refuse to publish CRs (for a thorough analysis of the growing obsolescence of the psychiatric case report as a knowledge-bearing text, see Berkenkotter 2008).Another reason why this 'endangered species' (Rose and Corn 1984) sometimes receives low esteem and 'is frequently dismissed -unfairly so -as unscientific' (Simpson and Griggs 1985: 403) is because CRs are considered to be non-citable items (Morris 1989), thus lowering the impact factor of journals where citation data rule decisions ( Van der Wall and Wilde 2009; Maisonnneuve et al. 2010). Indeed, Patsopoulos et al. (2005) found that ...

Mobile phones have caused diverging opinions regarding the change in communication patterns and the isolation among young people. However, in the case of the elderly, there are positive effects related to their use, their social activity, and their environmental awareness. This study connects these three variables beginning with the mobile telephone use by the elderly. A sample of 399 self-reliant elderly people was interviewed in Chile, where 159 had mobile phones. They answered the Usefulness, Satisfaction and Ease of Use Questionnaire (USE) and a series of questions about the environment and social life developed from previous studies. The results were analyzed using a multiple correspondence and correlation analysis. A high correlation between the three variables was found. Hence, a higher usability of mobile phones was associated with higher social activity and a higher environmental concern. These results showed that a design approach for the elderly could increase satisfaction regarding the use of a product and, as a result, improve communication with their social setting. From an environmental point of view, an indirect relationship was seen between the selection, use, and expectations of the end of life of the products.

La presente investigación tiene como objetivo principal analizar la prevalencia de la conducta agresiva en adolescentes estudiantes de tres colegios de la ciudad de Bucaramanga. El estudio fue descriptivo, con un diseño transversal, y se aplicó el Inventario de Habilidades Sociales para Adolescentes (TISS; Teenage Inventory of Social Skills, Inderbitzen y Foster, 1992; Inglés, Hidalgo, Méndez e Inderbitzen, 2003), prueba que evalúa la competencia social de los adolescentes en las relaciones con sus iguales. Con esta investigación se pretende determinar la frecuencia de adolescentes agresivos a partir de una muestra representativa de adolescentes estudiantes de tres colegios de la ciudad de Bucaramanga teniendo en cuenta variables como género, edad y curso académico. Los resultados muestran que la prevalencia de la conducta agresiva fue del 16.3%. Además, la prevalencia de chicos agresivos fue sustancialmente superior a la de chicas en todas las edades y los cursos académicos analizados.