Movilizaci?n participada en la construcci?n y uso del portafolio como estrategia did?ctica y evaluativa para la consolidaci?n de ambientes propicios en el aula de clases y el aprendizaje significativo a trav?s de la disciplina aut?noma en los estudiantes del grado sexto seis (6? -6) de la Instituci?n educativa t?cnica San Luis Gonzaga del corregimiento de Chicoral, municipio de Espinal, Tolima

199 P?ginasEn el ?mbito escolar, la Instituci?n Educativa T?cnica San Lu?s Gonzaga de Chicoral ha venido sufriendo el flagelo e incremento de la indisciplina que se vive al interior de sus aulas y que d?a a d?a toma mayor fuerza en el grado sexto seis (6?-6). La indisciplina es tan grande que los docentes ven interrumpidas sus labores acad?micas diarias, tratando de mantener el orden en el sal?n de clase, convirti?ndose ?ste aspecto en el m?s importante respecto al c?mo y qu? ense?ar a los estudiantes para que su aprendizaje sea verdaderamente significativo. Convencidos que el ambiente de aula debe ser el adecuado para que se d? un aprendizaje significativo y se fomente la disciplina aut?noma en los estudiantes del grado 6?-6, en quienes se genera conductas disruptivas en el aula debido a sus caracter?sticas particulares. Producto de ?sta situaci?n surge la pregunta ?C?mo generar ambientes de aula propicios para el aprendizaje significativo a trav?s de la disciplina aut?noma en ?stos estudiantes?, enmarcada bajo el objetivo general que lleva a proponer un modelo de intervenci?n que logre impactar en la comunidad educativa y que permita generar y lograr esos ambientes propicios y dem?s resultados esperados para dar soluci?n a la problem?tica que se vive, por medio de la reflexi?n. Para desarrollar el trabajo se emple? una metodolog?a de car?cter mixto, iniciando con la parte cualitativa para lograr el acercamiento entre el objeto de estudio y los sujetos involucrados; y luego para lograr la fiabilidad de los resultados se opt? por la metodolog?a cuantitativa. Con el an?lisis de la informaci?n se concluye que algunas de las causas que generan los malos ambientes y las conductas disruptivas, son entre otras las siguientes: el inadecuado manejo del tiempo libre y la escasa supervisi?n de los padres, carencia de h?bitos y t?cnicas de estudio, la mala alimentaci?n, el desinter?s de los estudiantes por el estudio, etc. Con base en ?stos resultados se pudo plantear la propuesta de intervenci?n denominada Movilizaci?n participada en la consolidaci?n de ambientes propicios en el aula de clases para el aprendizaje significativo a trav?s de la disciplina aut?noma de sus actores sociales.La Facultad de Ciencias de la Educaci?n de la Universidad del Tolima, el director, codirector y el jurado calificador, no son responsables de los conceptos ni de las ideas expuestas por los autores del presente trabajo. Art?culo 16, Acuerdo 032 de 1976 y Art?culo 29, Acuerdo 064 de 1991, Concejo Acad?mico de la Universidad del Tolima.INTRODUCCI?N 1. EL PROBLEMA DE LA INVESTIGACI?N 1.1 PLANTEAMIENTO DEL PROBLEMA DE INVESTIGACI?N 1.1.1 Descripci?n del Problema 1.1.2 Formulaci?n del Problema 1.1.3 Pregunta de Investigaci?n 2. OBJETIVOS 2.1 OBJETIVO GENERAL 2.2 OBJETIVOS ESPEC?FICOS 3. JUSTIFICACI?N 4. MARCO TE?RICO 4.1 EL AULA COMO LUGAR DE ENCUENTRO Y DESENCUENTRO 4.2 AMBIENTE EDUCATIVO Y ESTETICA SOCIAL 4.3 LOS AMBIENTES VIRTUALES. UN DESAFIO PARA LA EDUCACI?N 5. DISE?O METODOL?GICO 5.1 METODOLOG?A 5.2 TIPO DE ESTUDIO 5.3 ENFOQUE METODOL?GICO 5.4 POBLACI?N Y MUESTRA 5.5 T?CNICAS E INSTRUMENTOS DE RECOLECCI?N DE DATOS 5.6 AN?LISIS E INTERPRETACI?N DE DATOS 6. AN?LISIS DE RESULTADOS 6.1 AN?LISIS DE RESULTADOS DE LA CARACTERIZACI?N DE LOS AMBIENTES DE AULA, NIVEL DE APRENDIZAJE Y NIVEL DE DISCIPLINA QUE PRESENTAN LOS ESTUDIANTES 6.2 AN?LISIS ENCUESTAS A PADRES DE FAMILIA 6.3 AN?LISIS ENCUESTAS MAESTROS 6.4 AN?LISIS ENCUESTAS DIRECTIVOS DOCENTES 6.5 AN?LISIS DE LA ENTREVISTA SEMIESTRUCTURADA REALIZADA A LA PSICOORIENTADORA DE LA INSTITUCI?N EDUCATIVA T?CNICA SAN LU?S GONZAGA DEL CORREGIMIENTO DE CHICORAL, MUNICIPIO DE ESPINAL-TOLIMA. 6.6 AN?LISIS CONVERSATORIO CON DOCENTES QUE ORIENTAN CLASE EN EL GRADO 6?-6 DE LA INSTITUCI?N EDUCATIVA T?CNICA SAN LU?S GONZAGA. 6.7 AN?LISIS DIARIO DE CAMPO TRABAJADO CON LOS ESTUDIANTES PARA CORROBORAR SUS CONDUCTAS Y DESEMPE?OS ACAD?MICOS 7. PROPUESTA 7.1 NOMBRE DE LA PROPUESTA 7.2 INTRODUCCI?N 7.2.1 Legitimaci?n Social. 7.2.2 La Comunicaci?n. 7.2.3 Saber Social 7.2.4 Equidad Productiva. 7.2.5 Re-Editores Sociales 7.3 OBJETIVOS 7.3.1 Objetivo General 7.3.2 Objetivos Espec?ficos 7.4 JUSTIFICACI?N 7.5 MARCO TE?RICO. 7.5.1 Antecedentes Hist?ricos 7.6 MARCO CONCEPTUAL. 7.7 LA EVALUACI?N DE COMPETENCIAS COMPLEJAS: LA PR?CTICA DEL PORTAFOLIO 7.8 PAR?METROS GENERALES PARA ORGANIZAR EL PORTAFOLIO 7.9 EL APRENDIZAJE SIGNIFICATIVO Y EL PORTAFOLIO PEDAG?GICO. 7.10 METODOLOG?A DE LA PROPUESTA 7.11 CONCLUSIONES DE LA PROPUESTA 8. CONCLUSIONES 9. RECOMENDACIONES 9.1 RESIGNIFICACI?N PEI 9.2 JUSTIFICACI?N 9.3 FUTURAS INVESTIGACIONES REFERENCIAS ANEXO

La cotidianidad como herramienta conceptual en la ense?anza de las ciencias naturales en el Colegio Liceo Psicopedag?gico Sibat?

73 p. Recurso Electr?nicoEl proceso de ense?anza de las Ciencias Naturales se ha tornado mon?tono y repetitivo para los estudiantes, principalmente por la falta de pr?cticas asociadas a los conceptos manejados en las aulas, por lo que se ha generado distanciamiento y apat?a por parte de los estudiantes hacia las clases de Ciencias Naturales. Si bien es cierto que los actuales escolares son nativos tecnol?gicos, y poco se impresionan con algunas experiencias, es labor del docente incentivar la capacidad de asombro y respuesta en sus educandos. ?C?mo hacerlo en este cambiante momento de la humanidad? Regresando a lo simple, b?sico y elemental de las experiencias cotidianas puede ser una opci?n, mostrar la utilidad real de los aprendizajes ser?a sin lugar a dudas otra alternativas, que fusionadas con los saberes te?ricos constituye una gran estrategia educativa. No existe nada m?s motivante para un educando que ver transformadas palabras en experiencias tangibles, m?s aun cuando dichas experiencias se asocian con su cotidianidad. Palabras claves: Contexto, cotidianidad, ambiente de aprendizaje, experimentos, pr?cticas de conocimiento, cienciaThe process of teaching Natural Sciences has become monotonous and repetitive for students, mainly due to the lack of practices associated with the concepts handled in the classroom, which has generated students' distancing and apathy towards classes of Natural Sciences. While it is true that the current schoolchildren are technological natives, and are little impressed with some experiences, it is the teacher's job to encourage the capacity for wonder and response in their students. How to do it in this changing moment of humanity? Returning to the simple, basic and elementary of everyday experiences may be an option, showing the real usefulness of learning would undoubtedly be another alternative, which fused with theoretical knowledge constitutes a great educational strategy. There is nothing more motivating for an educated person than to see transformed words into tangible experiences, even more so when such experiences are associated with their daily lives. Keywords: Daily life, experiments, knowledge practices, context, science, field, learning environments

Intermittent control models of human standing: similarities and differences

Two architectures of intermittent control are compared and contrasted in the context of the single inverted pendulum model often used for describing standing in humans. The architectures are similar insofar as they use periods of open-loop control punctuated by switching events when crossing a switching surface to keep the system state trajectories close to trajectories leading to equilibrium. The architectures differ in two significant ways. Firstly, in one case, the open-loop control trajectory is generated by a system-matched hold, and in the other case, the open-loop control signal is zero. Secondly, prediction is used in one case but not the other. The former difference is examined in this paper. The zero control alternative leads to periodic oscillations associated with limit cycles; whereas the system-matched control alternative gives trajectories (including homoclinic orbits) which contain the equilibrium point and do not have oscillatory behaviour. Despite this difference in behaviour, it is further shown that behaviour can appear similar when either the system is perturbed by additive noise or the system-matched trajectory generation is perturbed. The purpose of the research is to come to a common approach for understanding the theoretical properties of the two alternatives with the twin aims of choosing which provides the best explanation of current experimental data (which may not, by itself, distinguish beween the two alternatives) and suggesting future experiments to distinguish between the two alternatives

Unraveling gene regulatory networks from time-resolved gene expression data -- a measures comparison study

Peer reviewedPublisher PD

Atmospheric effects on extensive air showers observed with the Surface Detector of the Pierre Auger Observatory

Atmospheric parameters, such as pressure (P), temperature (T) and density, affect the development of extensive air showers initiated by energetic cosmic rays. We have studied the impact of atmospheric variations on extensive air showers by means of the surface detector of the Pierre Auger Observatory. The rate of events shows a ~10% seasonal modulation and ~2% diurnal one. We find that the observed behaviour is explained by a model including the effects associated with the variations of pressure and density. The former affects the longitudinal development of air showers while the latter influences the Moliere radius and hence the lateral distribution of the shower particles. The model is validated with full simulations of extensive air showers using atmospheric profiles measured at the site of the Pierre Auger Observatory.Comment: 24 pages, 9 figures, accepted for publication in Astroparticle Physic

The exposure of the hybrid detector of the Pierre Auger Observatory

The Pierre Auger Observatory is a detector for ultra-high energy cosmic rays. It consists of a surface array to measure secondary particles at ground level and a fluorescence detector to measure the development of air showers in the atmosphere above the array. The "hybrid" detection mode combines the information from the two subsystems. We describe the determination of the hybrid exposure for events observed by the fluorescence telescopes in coincidence with at least one water-Cherenkov detector of the surface array. A detailed knowledge of the time dependence of the detection operations is crucial for an accurate evaluation of the exposure. We discuss the relevance of monitoring data collected during operations, such as the status of the fluorescence detector, background light and atmospheric conditions, that are used in both simulation and reconstruction.Comment: Paper accepted by Astroparticle Physic

Monitoring an Alien Invasion: DNA Barcoding and the Identification of Lionfish and Their Prey on Coral Reefs of the Mexican Caribbean

BACKGROUND: In the Mexican Caribbean, the exotic lionfish Pterois volitans has become a species of great concern because of their predatory habits and rapid expansion onto the Mesoamerican coral reef, the second largest continuous reef system in the world. This is the first report of DNA identification of stomach contents of lionfish using the barcode of life reference database (BOLD). METHODOLOGY/PRINCIPAL FINDINGS: We confirm with barcoding that only Pterois volitans is apparently present in the Mexican Caribbean. We analyzed the stomach contents of 157 specimens of P. volitans from various locations in the region. Based on DNA matches in the Barcode of Life Database (BOLD) and GenBank, we identified fishes from five orders, 14 families, 22 genera and 34 species in the stomach contents. The families with the most species represented were Gobiidae and Apogonidae. Some prey taxa are commercially important species. Seven species were new records for the Mexican Caribbean: Apogon mosavi, Coryphopterus venezuelae, C. thrix, C. tortugae, Lythrypnus minimus, Starksia langi and S. ocellata. DNA matches, as well as the presence of intact lionfish in the stomach contents, indicate some degree of cannibalism, a behavior confirmed in this species by the first time. We obtained 45 distinct crustacean prey sequences, from which only 20 taxa could be identified from the BOLD and GenBank databases. The matches were primarily to Decapoda but only a single taxon could be identified to the species level, Euphausia americana. CONCLUSIONS/SIGNIFICANCE: This technique proved to be an efficient and useful method, especially since prey species could be identified from partially-digested remains. The primary limitation is the lack of comprehensive coverage of potential prey species in the region in the BOLD and GenBank databases, especially among invertebrates

The Fluorescence Detector of the Pierre Auger Observatory

The Pierre Auger Observatory is a hybrid detector for ultra-high energy cosmic rays. It combines a surface array to measure secondary particles at ground level together with a fluorescence detector to measure the development of air showers in the atmosphere above the array. The fluorescence detector comprises 24 large telescopes specialized for measuring the nitrogen fluorescence caused by charged particles of cosmic ray air showers. In this paper we describe the components of the fluorescence detector including its optical system, the design of the camera, the electronics, and the systems for relative and absolute calibration. We also discuss the operation and the monitoring of the detector. Finally, we evaluate the detector performance and precision of shower reconstructions.Comment: 53 pages. Submitted to Nuclear Instruments and Methods in Physics Research Section

The observation of vibrating pear-shapes in radon nuclei (vol 10, 2473, 2019)

An amendment to this paper has been published and can be accessed via a link at the top of the paper

Construction of gene regulatory networks using biclustering and bayesian networks

<p>Abstract</p> <p>Background</p> <p>Understanding gene interactions in complex living systems can be seen as the ultimate goal of the systems biology revolution. Hence, to elucidate disease ontology fully and to reduce the cost of drug development, gene regulatory networks (GRNs) have to be constructed. During the last decade, many GRN inference algorithms based on genome-wide data have been developed to unravel the complexity of gene regulation. Time series transcriptomic data measured by genome-wide DNA microarrays are traditionally used for GRN modelling. One of the major problems with microarrays is that a dataset consists of relatively few time points with respect to the large number of genes. Dimensionality is one of the interesting problems in GRN modelling.</p> <p>Results</p> <p>In this paper, we develop a biclustering function enrichment analysis toolbox (BicAT-plus) to study the effect of biclustering in reducing data dimensions. The network generated from our system was validated via available interaction databases and was compared with previous methods. The results revealed the performance of our proposed method.</p> <p>Conclusions</p> <p>Because of the sparse nature of GRNs, the results of biclustering techniques differ significantly from those of previous methods.</p