1,721,277 research outputs found
'De nuevo en casa', los trabajadores avanzando sobre la producción
No full textFil: Rebón, Julián. Programa de Investigación sobre Cambio Social (UBA).Fil: Antón, Gustavo. Programa de Investigación sobre Cambio Social (UBA).Fil: Cresto, Jorge. Programa de Investigación sobre Cambio Social (UBA).Fil: Salgado, Rodrigo. Programa de Investigación sobre Cambio Social (UBA)
Le imprese recuperate dai lavoratori nella cittŕ di Buenos Aires: un bilancio in prospettiva emancipatoria
Full text linkIl recupero di imprese é il riferimento concettuale attraverso il quale viene descritto un insieme etcrogeneo di processi, nei quali unit) procluttive cntrate in crisi sono riavviate dai lavoratori stessi. Dagli ultimi anni dclla decade scors¿I. e con particolare intensiti dal 2001, migliaia di salariati in tutto il Paese hanno agito nella direzionc del riavvio della procluzione allo scopo di combattere processi di vulnerabilit¿i s¿rlariale. Nclla ciudad Auttinoma de Buenos Aires, l'ambito di rif'erimcnto di questo articofo, questo processo ha comportato I'emergenza di circa -50 processi di recupero di imprese.Fil: Rebón, Julián. Universidad de Buenos Aires. Facultad de Ciencias Sociales. Instituto de Investigaciones "Gino Germani"; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; ArgentinaFil: Salgado, Rodrigo Martín. Universidad de Buenos Aires. Facultad de Ciencias Sociales. Instituto de Investigaciones "Gino Germani"; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentin
CT and MR imaging of patients with a dilated right ventricle due to congenital causes and their treatment
Full text linkA variety of both acquired and congenital conditions can significantly affect the right ventricle, with a variety of potential origins that can have substantial clinical ramifications. These conditions can range from the impact of diseases like pulmonary arterial hypertension and ischaemic heart disease to valvular deficiencies resulting in heart failure. Moreover, the right ventricle response to factors like abnormal loading conditions, and its subsequent clinical effects, are influ-enced by factors such as age, disease progression, potential interventions, and their immediate and long-term clinical outcomes. Therefore, a readily available and reproducible non-invasive imaging assessment can aid in diagnosing the underlying condition of a dilated right ventricle, track its evolution, and help devising the most appropriate treatment strategy and optimal timing for its implementation throughout the patient’s life. In this review, our primary focus will be on the non-invasive imaging with CT and MR of an enlarged right ventricle resulting from congenital causes and their treatment.</p
Empresas recuperadas por sus trabajadores: sociogénesis y desarrollo del proceso en la Ciudad Autónoma de Buenos Aires.
No full textResumen: El presente trabajo tiene por objeto avanzar en la especificación del marco hipotético causal de los procesos de Recuperación de Empresas por sus Trabajadores en la Ciudad Autónoma de Buenos Aires, a partir del análisis de las transformaciones en los factores causales intervinientes, y considerando las variaciones contextuales.En este sentido, se sostiene que pese a la reversión del contexto de crisis manifestado en la sociogénesis del proceso, éste ha continuado ampliándose a nuevas empresas. Se considera que si bien las condiciones de crisis general pueden amplificar la resultante de las disputas en el mercado y ampliar así la intensidad reproductiva de las recuperaciones, el elemento que estructura los procesos de recuperación de empresas refiere a la crisis a nivel de la unidad productiva a partir de una vulneración de la relación salarial en origen realizada por el capital, y si bien este elemento no es independiente del contexto, no se encuentra subordinado al mismo. En este sentido, si en sus inicios fue la crisis social generalizada el elemento que potenció la difusión de las recuperaciones, ahora este rol será reemplazado por un elemento cultural del contexto: la difusión de la recuperación como forma social conocida y valorada positivamente entre los asalariados. Este factor, se incorpora crecientemente a la caja de herramientas de los trabajadores para enfrentar en forma novedosa el cierre empresarial. Hipotetizamos que si la recuperación logra instalarse crecientemente en la caja de herramientas de los trabajadores, posibilitará una mayor prescindencia del rol de difusores de los antiguos promotores en futuras experiencias, así como la posibilidad de ampliación a nuevas unidades productivas. Relacionado a este punto, hipotetizamos también que las características que asumen los procesos de recuperación más tardíos, desde la perspectiva de la alianza social que los viabiliza, podrían reflejar un salto cualitativo en su densidad social que posibilitaría mayores niveles de viabilización de la experiencia, facilitando así, su ampliación a nuevas unidades productivas.FIl: Salgado, Rodrigo Martín. Universidad de Buenos Aires. Facultad de Ciencias Sociales, Instituto de Investigaciones Gino Germani; Argentina
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
Current Status of CT Imaging Before Common Transcatheter Interventions for Structural Heart Disease
Full text linkBackground: Over the past decade, several trials and observational studies have validated the use of minimally invasive cardiac interventions as viable treatment options for various cardiac diseases. Transcatheter techniques for severe aortic valve stenosis have rapidly emerged as alternatives to surgical aortic valve replacement in certain patient populations. Additionally, non-surgical treatment options have expanded for conditions affecting other cardiac valves, such as the mitral valve. These emerging minimally invasive interventions complement already well-established endovascular techniques for, among others, atrial septal defect closure, left atrial appendage occlusion and pulmonary vein isolation in patients with atrial fibrillation. Given their non-surgical nature and lack of direct visualisation of the targeted anatomy, these procedures heavily rely on precise pre-procedural radiological imaging for optimal patient selection and procedural success. Method: This paper is based on the expert opinion of the authors and an exhaustive literature research. Results: This manuscript reviews the most commonly employed minimally invasive cardiac interventions, highlighting the essential pre-procedural imaging information and key aspects that must be included in radiological reports to mitigate potential complications. Conclusion: Accurate pre-procedural imaging is crucial for ensuring safe and effective minimally invasive cardiac interventions, underscoring the importance of the radiologist in the pre-procedural work-up of these patients
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
- …
