Fluorosis dentral: prevalencia, grados de severidad y factores de riesgo en niños de 7 a 13 años del cantón Cuenca PDF Download

Author: Janeth Parra Coronel
Publisher:
ISBN:
Category :
Languages : es
Pages :

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Book Description
El objetivo de esta investigación fue determinar la prevalencia de fluorosis dental en los niños escolares de áreas urbanas y rurales del Cantón Cuenca, así como potenciales factores de riesgo: flúor en el agua y la sal de consumo. Además, se estudió la asociación de fluorosis con proteína C-reactiva (PCR) y talla. Se realizó un estudio transversal en 222 escolares del área rural y 285 del área urbana, de 7 a 13 años. Se relacionó el grado de fluorosis con la concentración de flúor en el agua y la orina, la sal de consumo y la concentración de PCR en la sangre. La prevalencia de fluorosis dental fue mayor en el área rural que en la urbana: 80,7 versus 74%. Según el Índice de Fluorosis de Dean, la fluorosis moderada y severa tuvieron porcentajes más elevados en el área rural que en la urbana: de 4,2 a 23% versus 0,4 a 4,1%, respectivamente. La edad (OR: 1,23; IC: 1,01 a 1,51; p = 0,04) y el contenido del flúor en la sal (OR: 7,3; IC: 2,29 a 23,4; p = 0,001) se asociaron significativamente con la severidad de la fluorosis solo en los niños del área rural. La severidad de la fluorosis no se asoció con la concentración de PCR ni con la talla de los niños. Este estudio sugiere que los niños de mayor edad de escuelas rurales tienen más riesgo de fluorosis, posiblemente por persistente y excesivo consumo de flúor en la sal.

Author: Ivanoba Pardo Herrera
Publisher: Eae Editorial Academia Espanola
ISBN: 9783848454334
Category :
Languages : es
Pages : 120

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Book Description
La fluorosis dental ha sido definida como una patologia endemica por Dean (1942) y se entiende como el primer signo de sobredosis de fluor debido a la ingestion cronica del mismo. Se presenta con manchas que van desde una ligera opacidad a manchas marrones intensas con severas porosidades en la superficie del esmalte, formandose fosetas o espacios que llegan hasta la dentina en casos mas severos. El proposito del estudio fue determinar la prevalencia de fluorosis dental en los ninos y ninas pertenecientes a la institucion Jose Hilario Lopez del municipio de Padilla Cauca. MATERIALES Y METODOS: estudio descriptivo de corte transversal, en escolares de 6 a 12 anos de edad. RESULTADOS: El estudio arrojo que la fluorosis dental afecta al 44.76% de la poblacion, el grado de severidad mas prevalente fue cuestionable, seguido de muy leve y leve, tan solo se encontraron casos aislados de fluorosis moderada y ningun caso de fluorosis severa; la edad mas afectada fue de 6 anos. CONCLUSIONES: Es importante detectar el primer efecto toxico de exposicion a fluor para ser usado como predictor de fluorosis dental y fluorosis esqueletica.

Author: Jeffrey Sánchez Guzmán
Publisher:
ISBN:
Category :
Languages : es
Pages :

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Author: James Curran
Publisher: Bloomsbury Publishing USA
ISBN: 1501340743
Category : Social Science
Languages : en
Pages : 355

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Book Description
Media and Society is an established textbook, popular worldwide for its insightful and accessible essays from leading international academics on the most pertinent issues in the media field today. With this updated edition, David Hesmondhalgh joins James Curran and a team of leading international scholars to speak to current issues relating to media and gender, media and democracy, sociology of news, the global internet, the political impact of the media, popular culture, the effects of digitisation on media industries, media and emotion, and other vital topics. The media are in a state of ferment, and are undergoing far-reaching change. The sixth edition tries to make sense of the media's transformation, and its wider implications. Purely descriptive accounts date fast, so the emphasis has been on identifying the central issues and problems arising from media change, and on evaluating its wider consequences. What is judged to be the staple elements of the field has evolved over time, as well as becoming more international in orientation. Yet the overriding aim of the book - to be useful to students - has remained constant. This text is an essential resource for all media, communication and film studies students who want to broaden their knowledge and understanding of how the media operates and affects society across the globe.

Author: Aswin Punathambekar
Publisher: University of Michigan Press
ISBN: 0472125311
Category : Computers
Languages : en
Pages : 327

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Book Description
Digital media histories are part of a global network, and South Asia is a key nexus in shaping the trajectory of digital media in the twenty-first century. Digital platforms like Facebook, WhatsApp, and others are deeply embedded in the daily lives of millions of people around the world, shaping how people engage with others as kin, as citizens, and as consumers. Moving away from Anglo-American and strictly national frameworks, the essays in this book explore the intersections of local, national, regional, and global forces that shape contemporary digital culture(s) in regions like South Asia: the rise of digital and mobile media technologies, the ongoing transformation of established media industries, and emergent forms of digital media practice and use that are reconfiguring sociocultural, political, and economic terrains across the Indian subcontinent. From massive state-driven digital identity projects and YouTube censorship to Tinder and dating culture, from Twitter and primetime television to Facebook and political rumors, Global Digital Cultures focuses on enduring concerns of representation, identity, and power while grappling with algorithmic curation and data-driven processes of production, circulation, and consumption.

Author: Safiya Umoja Noble
Publisher: Digital Formations
ISBN: 9781433130007
Category : Digital divide
Languages : en
Pages : 0

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Book Description
This volume provides a means of foregrounding new questions, methods, and theories which can be applied to digital media, platforms, and infrastructures. These inquiries include, among others, how representation to hardware, software, computer code, and infrastructures might be implicated in global economic, political, and social systems of control.

Author: John Thornton Caldwell
Publisher: Rutgers University Press
ISBN: 9780813527345
Category : Computers
Languages : en
Pages : 348

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Book Description
Never before has the future been so systematically envisioned, aggressively analyzed, and grandly theorized as in the present rush to cyberspace and digitalization. In the mid-twentieth century, questions about media technologies and society first emerged as scholarly hand-wringing about the deleterious sweep of electronic media and information technologies in mass culture. Now, questions about new technologies and their social and cultural impact are no longer limited to intellectual soothsayers in the academy but are pervasive parts of day-to-day discourses in newspapers, magazines, television, and film. Electronic Media and Technoculture anchors contemporary discussion of the digital future within a critical tradition about the media arts, society, and culture. The collection examines a range of phenomena, from boutique cyber-practices to the growing ubiquity of e-commerce and the internet. The essays chart a critical field in media studies, providing a historical perspective on theories of new media. The contributors place discussions of producing technologies in dialogue with consuming technologies, new media in relation to old media, and argue that digital media should not be restricted to the constraining public discourses of either the computer, broadcast, motion-picture, or internet industries. The collection charts a range of theoretical positions to assist readers interested in new media and to enable them to weather the cycles of hardware obsolescence and theoretical volatility that characterize the present rush toward digital technologies. Contributors include Ien Ang, John Caldwell, Cynthia Cockburn, Helen Cunningham, Hans Magnus Enzensberger, Guillermo G=mez-Pe±a, Arthur Kroker, Bill Nichols, Andrew Ross, Ellen Seiter, Vivian Sobchack, AllucquFre Rosanne Stone, Ravi Sundaram, Michael A. Weinstein, Raymond Williams, and Brian Winston. John Thornton Caldwell is chair of the film and television department at the University of California at Los Angeles. He is a filmmaker and media artist and author of Televisuality: Style, Crisis, and Authority in American Television (also from Rutgers University Press).

Author: Gerard Goggin
Publisher: Taylor & Francis
ISBN: 1317607651
Category : Computers
Languages : en
Pages : 571

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Book Description
The Routledge Companion to Global Internet Histories brings together research on the diverse Internet histories that have evolved in different regions, language cultures and social contexts across the globe. While the Internet is now in its fifth decade, the understanding and formulation of its histories outside of an anglophone framework is still very much in its infancy. From Tunisia to Taiwan, this volume emphasizes the importance of understanding and formulating Internet histories outside of the anglophone case studies and theoretical paradigms that have thus far dominated academic scholarship on Internet history. Interdisciplinary in scope, the collection offers a variety of historical lenses on the development of the Internet: as a new communication technology seen in the context of older technologies; as a new form of sociality read alongside previous technologically mediated means of relating; and as a new media "vehicle" for the communication of content.

Author: Lisa Parks
Publisher: NYU Press
ISBN: 0814766919
Category : Business & Economics
Languages : en
Pages : 480

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Book Description
Provides an overview of the rapidly changing landscape of global television, combining previously published essays by pioneers of the study of television with new work by cutting-edge television scholars who refine and extend intellectual debates in the field.

Author: Christian Fuchs
Publisher:
ISBN: 9781911534044
Category : Business & Economics
Languages : en
Pages : 236

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Book Description
This book contributes to the foundations of a critical theory of communication as shaped by the forces of digital capitalism. One of the world's leading theorists of digital media Professor Christian Fuchs explores how the thought of some of the Frankfurt School's key thinkers can be deployed for critically understanding media in the age of the Internet. Five essays that form the heart of this book review aspects of the works of Georg LukAcs, Theodor W. Adorno, Herbert Marcuse, Axel Honneth and Ju rgen Habermas and apply them as elements of a critical theory of communication's foundations. The approach taken starts from Georg LukAcs Ontology of Social Being, draws on the work of the Frankfurt School thinkers, and sets them into dialogue with the Cultural Materialism of Raymond Williams. Critical Theory of Communication offers a vital set of new insights on how communication operates in the age of information, digital media and social media, arguing that we need to transcend the communication theory of Habermas by establishing a dialectical and cultural-materialist critical theory of communication. "