La investigaci?n formativa en el programa de licenciatura en educaci?n b?sica con ?nfasis en lengua castellana IDEAD

105 p. Recurso Electr?nicoLa investigaci?n formativa es la estrategia pedag?gica utilizada en el programa de Licenciatura en Educaci?n B?sica con ?nfasis en Lengua Castellana del IDEAD para fortalecer la cultura investigativa en sus estudiantes. El presente trabajo monogr?fico denominado ?La investigaci?n formativa en el programa de Licenciatura en Educaci?n B?sica con ?nfasis en Lengua Castellana del IDEAD? pretende conocer si se est?n cumpliendo los prop?sitos de la investigaci?n formativa, encontrar sus falencias y fortalezas en este programa en el CREAD Ibagu? a partir del an?lisis y la interpretaci?n de encuestas aplicadas a todos los estudiantes matriculados para el semestre B de 2015. En el desarrollo de la investigaci?n se presentan unos antecedentes de la investigaci?n formativa desde sus inicios en el programa Licenciatura en Educaci?n B?sica con ?nfasis en Lengua Castellana y de la revisi?n de los Acuerdos y Resoluciones facilitados por la secretaria del programa.The formative research is a pedagogical strategy implemented in the program of Licenciatura en educaci?n b?scia con enfasis en Lengua castellana of IDEAD to strengthen the investigative culture in the students belonging to this academic program. This monographic research is named ?La investigaci?n formativa en el programa de Licenciatura en educaci?n b?sica con enf?sis en Lengua Castellana del IDEAD? aims to know if the formative research purposes are being fulfilled, also, to find if its weaknesses and strengths into the program in the CREAD Ibagu? from the analysis and interpretation of surveys applied to whole students enrolled in the semester B of 2015. In the research development are presented some background regarding to formative research from the beginning of the program which were built through interviews done forteachers who has been the head of the program "Licenciatura en educaci?n b?sica con ?nfasis en Lengua Castellana del IDEAD" and the agreements review and resolutions given by the office of the program. Keywords: Formative research, research culture, pedagogical strategies

El cuento fant?stico una estrategia did?ctica para fortalecer la competencia interpretativa y la producci?n textual en los estudiantes del grado 4 de la Instituci?n Educativa Escuela Normal Superior sede 4 Dosquebradas Icononzo Tolima

99 p. Recurso Electr?nicoEn la presente investigaci?n titulada el cuento fant?stico una estrategia did?ctica para fortalecer la competencia interpretativa y la producci?n textual en los estudiantes del grado 4 de la Instituci?n Educativa Escuela Normal Superior sede 4 Dosquebradas Icononzo Tolima, le permiti? al grupo investigador realizar una seria de intervenciones pedag?gicas, empleado como herramienta did?ctica el cuento fant?stico con el ?nico prop?sito de fortalecer al educando con relaci?n a la competencia interpretativa, y sin dejar de lado la producci?n textual. Sin duda alguna se debe denotar el modelo pedag?gico que se orienta en dicha instituci?n, ya que este se encuentra acobijado por la modalidad de Escuela Nueva la cual facilito de una manera u otra la aplicaci?n de la investigaci?n. Por otro lado en las intervenciones pedag?gicas se abarcaron tem?ticas relacionadas con las pruebas saber y la ense?anza de estas mismas. Finalmente el grupo investigador evidencio el impacto del proyect? dentro de la comunidad en general (estudiantes, padres de familia) puesto que este permiti? establecer lasos de comunicaci?n entre las misma comunidad, ya que en su mayor?a las intervenciones pedag?gicas apuntaban a la interacci?n entre educando- educador y el n?cleo familiar, de esta manera se pude afirmar que el cometido inicial de la presente investigaci?n se cumpli? a cabalidad dando a los educandos una nueva forma de ver los cuentos fant?sticos y a su vez fortaleciendo la competencia interpretativa y la producci?n textual en estos.In the present research titled the fantastic story a didactic strategy to strengthen the interpretative competence and the textual production in the students of grade 4 of the Educational Institution Normal High School headquarters 4 Dosquebradas Icononzo Tolima, allowed the investigating group to carry out a series of pedagogical interventions , Used as a didactic tool the fantastic story with the sole purpose of strengthening the student in relation to the interpretive competence, and without neglecting textual production. Undoubtedly, we must denote the pedagogical model that is oriented in this institution, since this one is cuddled by the modality of New School which facilitates of one way or another the application of the investigation. On the other hand in the pedagogic interventions were covered subjects related to the tests knowledge and the teaching of these same ones. Finally, the research group showed the impact of the project within the community in general (students, parents) since it allowed to establish communication links between the same community, since in the majority the pedagogical interventions pointed to the interaction between educando- Educator and the family nucleus, in this way it can be affirmed that the initial task of the present investigation was fully fulfilled giving the students a new way of seeing the fantastic stories and at the same time strengthening the interpretive competence and the textual production in them Keywords: interpretation, textual production, fantastic stories, context

3D Printing Filaments Facilitate the Development of Evanescent Wave Plastic Optical Fiber (POF) Chemosensors

One of the major difficulties in the development of evanescent wave optical fiber sensors (EWOFS) lies in the complexity of the manufacturing of the chemosensitive element, particularly when using plastic optical fibers (POFs). While these fibers are appealing waveguides thanks to their low cost, ease of connectorization and robustness, the need for removing the cladding material complicates the EWOFS fabrication. In this paper we discuss how 3D printing filaments can serve as an alternative to commercially available POF for the development of EWOFS. In the process of replacing the traditional POF, we compared the performance of two EWOFS for monitoring airborne formaldehyde. These sensitive elements were manufactured either from 1.75 mm diameter 3D printing filaments, or from a commercially available POF. After the optimization of their respective fabrication protocols, the analytical performance of the two formaldehyde EWOFS was compared in terms of sensitivity and reproducibility. In this regard, the easy-to-manufacture 3D printing filament-based waveguides provided 5-fold lower detection limits with respect to the commercial POF-based sensors. Although no statistically significant differences were found in terms of reproducibility, the simplification of the sensor manufacturing process together with the increased analytical performance for chemical sensing spur the use of 3D printing filaments for the development of new POF-based EWOFS.Depto. de Química OrgánicaFac. de Ciencias QuímicasTRUEEU-LIFE Programpu

A hierarchy in the family of real surjective functions

This expository paper focuses on the study of extreme surjective functions in ℝℝ. We present several different types of extreme surjectivity by providing examples and crucial properties. These examples help us to establish a hierarchy within the different classes of surjectivity we deal with. The classes presented here are: everywhere surjective functions, strongly everywhere surjective functions, κ-everywhere surjective functions, perfectly everywhere surjective functions and Jones functions. The algebraic structure of the sets of surjective functions we show here is studied using the concept of lineability. In the final sections of this work we also reveal unexpected connections between the different degrees of extreme surjectivity given above and other interesting sets of functions such as the space of additive mappings, the class of mappings with a dense graph, the class of Darboux functions and the class of Sierpiński-Zygmund functions in ℝℝ

Trajectory-Based Morphological Operators: A Model for Efficient Image Processing

Mathematical morphology has been an area of intensive research over the last few years. Although many remarkable advances have been achieved throughout these years, there is still a great interest in accelerating morphological operations in order for them to be implemented in real-time systems. In this work, we present a new model for computing mathematical morphology operations, the so-called morphological trajectory model (MTM), in which a morphological filter will be divided into a sequence of basic operations. Then, a trajectory-based morphological operation (such as dilation, and erosion) is defined as the set of points resulting from the ordered application of the instant basic operations. The MTM approach allows working with different structuring elements, such as disks, and from the experiments, it can be extracted that our method is independent of the structuring element size and can be easily applied to industrial systems and high-resolution images

A prospective study of the clinical outcomes and prognosis associated with comorbid COPD in the atrial fibrillation population

Background: Patients with COPD are at higher risk of presenting with atrial fibrillation (AF). Information about clinical outcomes and optimal medical treatment of AF in the setting of COPD remains missing. We aimed to describe the prevalence of COPD in a sizeable cohort of real-world AF patients belonging to the same healthcare area and to examine the relationship between comorbid COPD and AF prognosis. Methods: Prospective analysis performed in a specific healthcare area. Data were obtained from several sources within the "data warehouse of the Galician Healthcare Service" using multiple analytical tools. Statistical analyses were completed using SPSS 19 and STATA 14.0. Results: A total of 7,990 (2.08%) patients with AF were registered throughout 2013 in our healthcare area (n=348,985). Mean age was 76.83+/-10.51 years and 937 (11.7%) presented with COPD. COPD patients had a higher mean CHA2DS2-VASc (4.21 vs 3.46; P=0.02) and received less beta-blocker and more digoxin therapy than those without COPD. During a mean follow-up of 707+/-103 days, 1,361 patients (17%) died. All-cause mortality was close to two fold higher in the COPD group (28.3% vs 15.5%; P<0.001). Independent predictive factors for all-cause mortality were age, heart failure, diabetes, previous thromboembolic event, dementia, COPD, and oral anticoagulation (OA). There were nonsignificant differences in thromboembolic events (1.7% vs 1.5%; P=0.7), but the rate of hemorrhagic events was significantly higher in the COPD group (3.3% vs 1.9%; P=0.004). Age, valvular AF, OA, and COPD were independent predictive factors for hemorrhagic events. In COPD patients, age, heart failure, vasculopathy, lack of OA, and lack of beta-blocker use were independent predictive factors for all-cause mortality. Conclusion: AF patients with COPD have a higher incidence of adverse events with significantly increased rates of all-cause mortality and hemorrhagic events than AF patients without COPD. However, comorbid COPD was not associated with differences in cardiovascular death or stroke rate. OA and beta-blocker treatment presented a risk reduction in mortality while digoxin use exerted a neutral effect

Impact of the faecal immunochemical test on colorectal cancer survival.

BACKGROUND: There is already evidence that the faecal immunochemical test (FIT) is a useful tool for the diagnosis of colorectal cancer (CRC) that helps to identify symptomatic patients requiring early colonoscopy. Although the recommendation to use FIT is widely accepted, there are no data concerning whether this strategy improves patient survival.The objective was to assess whether the survival is higher if CRC patients have been first diagnosed by FIT (as compared with the rest of patients with CRC). METHODS: We identified all cases of CRC diagnosed between 2009 and 2016 in Donostialdea (Spain), excluding all the CRC detected in population screening. We focused on symptomatic patients. One thousand five hundred twenty-seven cases of CRC were divided into two groups based on the route to diagnosis: group 1: individuals who tested positive in a FIT during the year before diagnosis, and group 2: others.Survival was assessed by Kaplan-Meier estimation, and with the log-rank test. A Cox regression model was used to adjust for differences between groups due to other variables associated with survival. RESULTS: One thousand nine hundred sixty-seven cases of invasive CRC were identified, of which 22.4% were detected in population screening. Of the 1527 cases diagnosed in symptomatic patients, 317 patients had undergone a FIT in the year before the diagnosis of CRC. In 279 cases(18.3%), the result had been positive and this was the first step towards their CRC diagnosis (group 1). Group 2 was composed of the 1248 cases of CRC (81.7%). Considering these cases, 1210 patients with CRC did not undergo any FIT while 38 patients presented a negative result in the year before the diagnosis. The rate of early-stage disease (stage I or II) was higher in group 1 (51.3% vs 45.5% in group 2) (p = 0.04). Furthermore, the 3-year survival was longer in group 1 (72% vs 59% in group 2) (HR 1.50; 95% CI 1.22-1.84).The variables independently associated with worse survival were: group 2, age > 70 years and stage at the moment of diagnosis. CONCLUSIONS: The use of FIT as a diagnostic strategy in symptomatic patients may improve survival in CRC. Nonetheless,FIT is still not widely used in our region

Reinforced silica-carbon nanotube monolithic aerogels synthesised by rapid controlled gelation

This work introduces a new synthesis procedure for obtaining homogeneous silica hybrid aerogels with carbon nanotube contents up to 2.50 wt.%. The inclusion of nanotubes in the highly porous silica matrix was performed by a two-step sol–gel process, resulting in samples with densities below 80 mg/cm3. The structural analyses (N2 physisorption and SEM) revealed the hierarchical structure of the porous matrix formed by nanoparticles arranged in clusters of 100 and 300 nm in size, specific surface areas around 600 m2/g and porous volumes above 4.0 cm3/g. In addition, a relevant increase on the mechanical performance was found, and an increment of 50% for the compressive strength and 90% for the maximum deformation were measured by uniaxial compression. This reinforcement was possible thanks to the outstanding dispersion of the CNT within the silica matrix and the formation of Si–O–C bridges between nanotubes and silica matrix, as suggested by FTIR. Therefore, the original synthesis procedure introduced in this work allows the fabrication of highly porous hybrid materials loaded with carbon nanotubes homogeneously distributed in the space, which remain available for a variety of technological applications