328 research outputs found
Public Journalism and Citizenship
This work analyzes the relation between the right to information and the exercising of citizenship, within the scope of the dissemination of legislative information. The study traces a parallel between the coverage by private media and by the public media maintained by the Chamber of Deputies. The creation of a specifi c communication system for the dissemination of legislative information is based on the presupposition that the internal dynamics of the private media do not favor the exercising of citizenship. In addition to the right to information, the right to opinion is emphasized as a basic element for the exercising of freedom of expression, for the consolidation of representative democracy and as an indispensable mechanism for the citizens' enlightenment
Towards the Use of Hypergraphs in Multi-adjoint Logic Programming
The representation of a logic program by a graph is a useful procedure in
order to obtain interesting properties of the program and in the computation of the
least model, when it exists. In this paper, we consider hypergraphs for representing
multi-adjoint logic programs and, based on this representation, the hypotheses of an
interesting termination result have been weakened
Composição morfológica e resposta produtiva de acessos do gênero Manihot.
Neste estudo, objetivou-se avaliar a composição morfológica e a resposta produtiva de acessos de Manihot sp
Genetic diversity of Macroptilium accessions considering the increase in air temperature.
Climate changes can influence the genetic diversity of forage plants, which may contribute to theimprovement and development of new species. Therefore, this research aimed to evaluate the influence of temperature increase on the genetic diversity of Macroptilium accessions based on morphoagronomic descriptors. The experiment was carried out in a growth chamber in a 2×16 factorial arrangement (temperature regimes x Macroptilium accessions), with the temperatures consisting of T1 (20?26?33 °C) and T2 (24.8?30.8?37.8 °C) and 16 accessions. Eleven morphoagronomic descriptors allowed estimating the diversity among accessions. The measurements of genetic dissimilarity enabled us to observe the genetic distance between the studied materials, standing out the accessions T1.M3 and T2.S4 as the most divergent (446.01). The morphoagronomic descriptors percentage of leaves and stem diameter were the most efficient for estimating the diversity between access. Genetic variability points to the adaptation of Macroptilium accessions in the climate change scenario. The accessions more divergent can be explored in genetic breeding programs for the species aiming at the expansion of genetic variability as an adaptation mechanism to heat stress
Evaluando el progreso de la eficiencia con tecnología en una cadena de hoteles española
This paper analyzes the changes in the total factor productivity index of a Spanish hotel chain in the
period from 2007 to 2010 with the purpose of identifying efficiency patterns for the chain in a period of
financial crisis. The data envelopment analysis (DEA) Malmquist productivity index was used to estimate
productivity change in 38 hotels of the AC chain. Results reveal AC hotels’ efficiency trends and,
therefore, their competitiveness in the recession period; they also show the changes experienced in
these hotels’ total productivity and its components: technological and efficiency changes. Positive
efficiency changes were due to positive technical efficiency rather than technological efficiency. The
recession period certainly influenced the performance of AC Hotels, which focused on organizational
changes rather than investing in technology.Este artigo analisa as mudanças no fator total de produtividade de uma cadeia de hotéis na Espanha,
no período de 2007-2010, com o propósito de identificar os padrões da cadeia em um período
de crise financeira. O índice data envelopment analysis (DEA) Malmquist de produtividade foi usado
para estimar a mudança da produtividade nos 38 hotéis da AC Cadeia de Hotéis. Os resultados revelaram
as tendências de eficiência e competitividade da AC Hotéis em um período de recessão, bem
como as mudanças vivenciadas na produtividade total e, consequentemente, em seus componentes
de eficiência e tecnológicos. O período de recessão influenciou, sem dúvida, o comportamento da AC
Hotéis, que buscou mais mudanças organizacionais do que tecnológicas.Este artículo analiza los cambios del índice de productividad del factor total de una cadena de hoteles
españoles en el periodo de 2007 hasta 2010, con el propósito de identificar patrones de eficiencia
para la cadena en un periodo de crisis financiera. El índice de productividad data envelopment analysis
(DEA) Malmquist fue utilizado para estimar el cambio de productividad en 38 hoteles de la cadena
AC. Los resultados revelan las tendencias de la eficiencia de los hoteles AC y, por lo tanto, su competitividad
en el periodo de recisión; ellos también demuestran los cambios experimentados en la
productividad total de eses hoteles y sus componentes: cambios de eficiencia y tecnológicos. Cambios
de eficiencia positivos se debieron más bien a eficiencias técnicas positivas que a eficiencias tecnológicas.
El periodo de recesión ciertamente ha influenciado los Hoteles AC, que enfocaron más en los
cambios organizacionales que en invirtiendo en tecnología
Three- dimensional assessment of craniofacial asymmetry in children with transverse maxillary deficiency after rapid maxillary expansion: A prospective study
ObjectiveThe aim of this study was to evaluate craniofacial asymmetry in children with transverse maxillary deficiency, with or without functional unilateral posterior crossbite (UPC), before and after rapid maxillary expansion (RME).Setting and sample populationA sample of 51 children with cone beam computed tomography scans obtained before RME (T1) and a year after RME (T2).Material and methodsThis prospective study consisted of 2 groups: 25 children with functional UPC (6.77 ± 1.5 years) and 26 children without UPC (7.41 ± 1.31 years). Linear and angular measurements were obtained from zygomatic, maxilla, glenoid fossa and mandible, using original and mirrored 3D overlapped models. All right and left side comparisons in both groups and intergroups asymmetries were compared using MANOVA and t test for independent samples, respectively, statistically significant at P < .05.ResultsThe UPC group showed no side differences, but mandibular horizontal rotation at T1, and this asymmetry was improved in T2. The non- UPC group showed at baseline significant lateral asymmetry in orbitale, position of palatine foramen, respectively, in average 2.95 mm and 1.16 mm, and 0.49 mm of average asymmetry in condylar height. The glenoid fossa was symmetric in both groups at T1 and T2.ConclusionsChildren with transverse maxillary deficiency showed slight morphological asymmetry, located in the mandible position in cases of UPC, and in the orbital and maxillary regions in cases without UPC. One year after RME, patients improved their craniofacial asymmetry, with significant changes in the mandible and correction of the mandibular rotation in patients who presented UPC.Peer Reviewedhttp://deepblue.lib.umich.edu/bitstream/2027.42/156195/2/ocr12370_am.pdfhttp://deepblue.lib.umich.edu/bitstream/2027.42/156195/1/ocr12370.pd
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