Use Of TIC Research Articles

El uso didáctico de las TICS en el mejoramiento de la labor didáctica en la escuela colombiana.

El propósito del estudio fue el uso didáctico de las tics en el mejoramiento de la labor didáctica en la escuela colombiana y laimportancia de la inclusión en el campo de la educación de las tecnologías de información y comunicación (Tics). Al respecto, se asumió lanecesidad de innovar la calidad formativa del acto formativo donde predominan los fundamentos pedagógicos y didácticos tradicionales. Seseleccionó el Colegio Técnico La Presentación Pamplona, Norte de Santander, Colombia al realizar una investigación descriptiva y de campo,con el apoyo de dos cuestionarios: uno para docentes y otro a estudiantes, ambos de cuarto, quinto y sexto grado, junto a notas de campo. Seobtuvo que algunos profesores diagnostican, y otros no, los saberes previos de los estudiantes respecto al uso de las Tics, han empleadojuegos, videos, internet y CD para algunas clases; sin embargo, no diversifican estos recursos. Los educandos prefieren juegos, escritura ylectura con las Tics.

La imagen en la creación de medios de enseñanza con las TIC

El uso de las TIC en diversas variantes dentro del proceso de enseñanza aprendizaje se ha extendido y convertido en objeto de estudio.La imagen como vía de transmisión de conocimientos es un instrumento poderoso por las posibilidades didácticas que brinda. Las nuevas herramientas tecnológicas traen consigo la necesidad de adquirir nuevos saberes tanto en lo metodológico como en el manejo de las aplicaciones de edición de imagen. El presente trabajo tiene como objetivo mostrar vías para incentivar en nuestros profesores el uso de las TIC para crear medios de enseñanza, materializado en un software educativo para la educación artística.

Los sistemas de respuesta interactiva para el fomento de la competencia de razonamiento científico en los estudiantes de ingeniería

El presente proyecto se basa en el empleo de las TICs para la mejora del proceso de enseñanza/aprendizaje en las materias de Física en Ingeniería. Concretamente, se ha diseñado una nueva metodología docente para la resolución de problemas, basada en el uso de los Sistemas de Respuesta Interactiva, con el objetivo de favorecer entre el alumnado la adquisición de la competencia de razonamiento científico aplicada a la resolución de problemas de física en el campo de la ingeniería. Se ha comprobado que los Sistemas de Respuesta Interactiva son de gran utilidad en el proceso de enseñanza/aprendizaje en cuanto que aumentan la participación, atención y motivación de los estudiantes, favorecen la retroalimentación inmediata profesor-alumno y ayudan al alumnado a enfrentarse con mayor seguridad a la resolución de problemas y a las pruebas de evaluación.

CURRENT STATE OF THE SCIENTIFIC PROBLEM OF WC–Co HARD ALLOYS SURFACE HARDENING (REVIEW)

The article presents the review of Russian and foreign researches on surface hardening of WC – Co hard alloys aiming at increasing their wear-resistance. There is a great reserve of increasing wear-resistance and operational durability of hard-alloy products in application of surface methods of hardening using different coatings and coating with basic structural components of up to 100 nanometers. The most widely spread coatings on WC – Co hard alloys are coatings made from TiC, TiN providing high energy lattice ties, high flowing temperature and hardness. Use of TiC, TiN as surface layers on hard-alloy tools results in reduction of friction coefficient in pair with steel in 1.5 – 2.0 times, but use of TiN + ZrN ionic-plasma coatings reduces friction coefficient in 5.9 times in comparison with the initial condition. Today multilayer coatings are very popular. The most widely spread are coatings of TiN + TiC and Al2 O3 + TiC. Their surface wear is directly proportional to the coating thickness. Combined multilayer coatings described above are not the final solution to the problem of increasing wear resistance of hard alloys. The research projects are carried out in our country that are based on theoretical possibilities for obtaining strength of the hard alloy gradually from viscous and high-strength core to wear-resistant surface. The FSUE VNIITS has developed a method for obtaining alloys with variable content of cobalt along the plate thickness. Due to this, it is possible to vary composition of alloys along the thickness of sample, from VK20 to VK2, as a result working part of plate has wear resistance equal to VK2 alloy, and the base enduressignificant bending stresses. Recently different cutting tools with diamond coatings on hard alloys have been used in Russia and all over the world. To increase the service life of hard-alloy plates of VK group, methods of hardening using concentrated energy flows are used. Among them there are hard alloys’surfaces treatment by γ-quanta, ion beams, laser beams; electro-explosive alloying, electro-erosion hardening by alloying etc.

Proposed methodology for learning english with the use of TICs. Case: Universidad Tecnológica Equinoccial

Proposed methodology for learning english with the use of TICs. Case: Universidad Tecnológica Equinoccial

On the use of TiC as high-temperature healing particles in alumina based composites

We report on the use of TiC particles as high temperature healing agent in alumina based composites. The selection of TiC was based on a theoretical analysis of its high temperature stability in contact with Al2O3, its volumetric expansion upon oxidation and the adhesion between the reaction product TiO2 with Al2O3. Fully dense 15 and 30vol.% TiC-Alumina composites were made by Spark Plasma Sintering. Initial damage was produced by Vickers indentations. The strength recovery was determined for temperatures between 400 and 800°C. The mechanical measurements were complemented by microstructural characterization of the base material and the healed cracks.

Current Views on the Pathogenesis and Principles of External Treatment of Atopic Dermatitis in Children

The article analyzes the current data on the pathogenesis of atopic dermatitis. It discusses the role of the damaged dermal barrier structure in the development of food allergies and presents the results confirming the theory of transdermal sensibilisation to allergens in addition to hereditary and exogenous factors. Current local treatment of atopic dermatitis using topical glucocorticosteroids (tGCs) aimed at reducing the severity of symptoms is often associated with the risk of complications. The data on the effective use of topical calcineurin inhibitors (TCI) to eliminate the side effects of tGCs are presented. The results of the possible use of pimecrolimus in the form of 1% cream for gradual withdrawal of tGCs in the long-term use are shown. The data of reviews and meta-analyses for the last decade are given showing that there is no evidence that the use of TIC is associated with an increased risk of lymphoma. The authors conclude that pimecrolimus in the form of 1% cream is the best medication for topical therapy in children with mild and moderate form of the disease. It is also considered the best preparation for the proactive treatment of atopic dermatitis in the long period of time in order to prevent recurrences.

The value of touch imprint cytology of prostate core needle biopsy specimens – Kuwait experience

ObjectivesTouch imprint cytology (TIC) is a reliable, cost-effective technique for the diagnosis of cancer. The aim of this study was to determine the diagnostic value and accuracy of TIC of prostate core needle biopsy (CNB) specimens in predicting the final histology in patients with suspected prostate cancer. Subjects and methodsTIC was carried out on 354 core needle biopsy specimens taken from 59 patients with suspected prostate cancer as indicated by a high prostate serum antigen (PSA) level or abnormal findings on rectal examination. All biopsies were taken under transrectal ultrasound (TRUS) guidance. Two touch imprints were prepared from each CNB. The TIC results were correlated with CNB. ResultsTIC revealed evaluable results in 336/354 (94.9%) CNB specimens analyzed, with the following cytological diagnosis: malignancy in 40 (11.9%), atypical features in 47 (14%) and benign results in 249 (74.1%) specimens. Histopathological examination of the 40 CNB specimens showing malignant features on TIC confirmed the diagnosis of prostate cancer. In 24/47 (51.1%) cases with atypical cytology, histopathological assessment of the CNB specimens revealed benign features in 7 and prostatitis in 17, while high-grade prostatic intraepithelial neoplasia (HGPIN) and carcinoma were seen in 3 and 20 specimens, respectively. In 12/249 (4.8%) cases showing benign results on TIC, histopathological examination of the CNB specimens revealed an abnormal histology in the form of HGPIN in 9 (75%) and carcinoma in 3 (25%) cases. TIC accurately predicted the final histology in 336 cases with a sensitivity of 84% and a specificity of 90.8%. When excluding atypical cytology on TIC and HGPIN on CNB, the sensitivity and specificity were 93% and 100%, respectively. A strong correlation was seen between TIC and CNB (p<0.001). ConclusionsThe routine use of TIC complements CNB reports and helps to provide an immediate and reliable cytological diagnosis of prostate lesions. TIC and serial sectioning of CNB specimens significantly improve the diagnostic accuracy.

Competencias TIC en docentes del inglés a nivel de básica primaria en las IE oficiales de la Región Caribe colombiana

El presente trabajo está referido de manera particular, a identificar la percepción de los docentes en relación con el uso de las TIC en las labores de enseñanza del inglés, y de forma general, a la profundización y el conocimiento en las prácticas pedagógicas en las instituciones de educación a nivel de básica primaria en el Departamento del Atlántico. El estudio es de carácter descriptivo. Se hizo una recolección de datos sobre las competencias de los docentes bilingües de la básica primaria en las escuelas públicas. Se aplicaron encuestas y se utilizó el software estadístico SPSS para el análisis de los datos. Se concluyó, que los docentes no están generando un nuevo conocimiento, debido a que no participan en la construcción de proyectos investigación apoyados por las nuevas tecnologías.

Políticas públicas de inclusión digital: El caso de América Latina y Cuba

Objetivo. Abordar el desarrollo de políticas públicas vinculadas a la inclusión digital en países de América Latina y en especial Cuba y análisar el comportamiento de este fenómeno en el área y las acciones realizadas por los diferentes gobiernos permitiendo mostrar cómo se ha comportado el desarrollo de políticas y proyectos de inclusión digital en América Latina y Cuba. Método. Para profundizar en este análisis, se realizó una revisión bibliográfica que permitió ubicarnos en un contexto teórico-conceptual de este fenómeno. Se consultaron bases de datos internacionales que facilitaron el acceso a información que permitió arribar a varias conclusiones. Conclusiones. A pesar de los esfuerzos realizados para disminuir la brecha digital, esta crece en la medida que se desarrollan nuevas tecnologías afectando a la población de menos recursos, se percibe también una tendencia en el crecimiento del uso de las TIC´s en Cuba y América Latina.

How Millennials are changing the way we learn: the state of the art of ICT integration in education

The Millennials generation is changing the way to learn, promoting that educational institutions try to better adapt to the young's needs through the incorporation of educational technologies. Based on this premise, we have reviewed prominent reports about the integration of TIC on education in order to demonstrate how the education is changing and is going to change, to satisfy the needs of the Millennials with the support of the TIC. We conclude that the most of the investments have resulted in an increase of computers and internet access, with teachers that reproduce tradicional approaches of education and and where the virtual learning is seen as a complement of the face-to-face training. Although it seems that the use of TIC is not revolutionizing the learning, the personalization, collaborations and ubiquity of learning are being easier.

The integration of Information and Communication Technologies in teaching practices

This article is an attempt to draw up an inventory of the process of the integration of TIC in teaching practices in the Tunisian school context following an exploratory research brought to the effective use of TIC by the teachers. This relates to the question of what teachers actually do with ICTs, rather than the question of what ICTs do to teachers. Thus, the researcher's view will not focus on ICT, but on their uses and contexts of use, this being through the use of version 3.0 of the research methodology (Karsenti, 2006). It is the application of a mixed methodology. What marks this study is the evolution and the structuring of the question treated, in a constructivist process, throughout the research. This work was carried out in three phases. First, it is a question of studying the feeling of self-efficacy towards ICT of teachers belonging to establishments equipped with ICT. Next, the empirical investigation touched on a well-targeted group of teachers recommended as “exemplary” teachers in terms of integrating ICT for educational purposes. It emerges from this phase that only one small group of teachers has really succeeded in developing effective uses of ICT in the classroom. This observation leads the research towards a more detailed investigation of the question of the use of ICT by the adoption of qualitative research. The interest here is to understand why and how a small group of teachers succeeded in effectively integrating ICT in their teaching practices in real classroom situations. It is an attempt to show and appreciate positive examples of innovative and creative teachers, succeeding in integrating ICT and eventually overcoming a number of “obstacles” in this area.

Student-centered Teaching: An Experience at the Building Engineering School in Valencia, Spain

During the 2nd semester of the academic year 2012-13, with the aim to improve the learning process, to develop competences and skills and to maximise the opportunities for interaction between students and lecturers, and among students themselves too, several active learning strategies have been set up in the course of “Energy efficiency in building”, a specialisation course of 12 ECTS points with a interdisciplinary teaching staff. The pedagogical and didactical approach must face different external condition such as the duration of each lecture, the predictable drop of paying attention and the resulting necessity of different kind of activities. Several actions have been introduced in our lectures, as oral presentation of a self-chosen topic, intensive use of TICs, case studies, production of a poster, specific seminary on IR thermography, conference about energy classification, field trips, one minute papers. All this activities not only focus program-specific and professional competences, related to the academic discipline and a better knowledge and understanding of physical, thermodynamic laws or construction elements, but also want to train core and cross-cultural competences such as communication, management of information, teamwork, continuous learning, strategic thinking, cross-cultural behaviour, with a view to the final project presentation. The final results of the course showed the importance of the active learning actions in order to create a better learning and teaching environment and enhance the engagement of the students with the course. Despite the fixed seating and class size we could introduce many active learning activities in order to foster core competencies, learning and discussion.

Portuguese

1024x768 DOI: http://dx.doi.org/10.14244/198271991012 This paper presents an analysis of the trajectory of government agendas and their commitments in focusing on the use of distance education ( DE) to achieve the qualifying goals of basic education teachers at a higher education level. Based on the national education plans that , according to LDB/96 , should be the most representative of these agendas , a retrospective of the paths taken during the period of the PNE 2001-2010 is initially made. Then, this paper presents proposals and issues related to teacher education through DE , which were taken into consideration when elaborating the PNE 2011-2020. After verifying how these proposals and issues were inserted ( or not) in the PNE 2011-2020, which was sent by MEC to the National Congress in December 2010, the study gives an overview of actions taken by the federal government during the “void” period created in the agenda due to the long proceedings in the National Congress (2011-2013), with data from the government program Open University of Brazil System ( Sistema Universidade Aberta do Brasil - UAB). Finally, issues raised by the academic community about the current situation are mentioned. They gather, on one hand , traditional criticisms about the quality of distance education courses in general or how they have been established in Brazil. A ccording to these researchers, DE has a specific methodology that is not limited to the use of TICs . On the other hand , questions arise, such as the need for institutionalization of DE in federal institutions that are members of UAB system , surpassing the logic of membership-benefit and that of projects funded with bondless grants. Keywords : Expansion of Higher Education, Public Policies on Higher Education, Teacher Education, Distance Education Normal 0 21 false false false PT-BR X-NONE X-NONE /* Style Definitions */ table.MsoNormalTable {mso-style-name:Tabela normal; mso-tstyle-rowband-size:0; mso-tstyle-colband-size:0; mso-style-noshow:yes; mso-style-priority:99; mso-style-qformat:yes; mso-style-parent:; mso-padding-alt:0cm 5.4pt 0cm 5.4pt; mso-para-margin:0cm; mso-para-margin-bottom:.0001pt; mso-pagination:widow-orphan; font-size:11.0pt; font-family:Calibri,sans-serif; mso-ascii-font-family:Calibri; mso-ascii-theme-font:minor-latin; mso-fareast-font-family:Times New Roman; mso-fareast-theme-font:minor-fareast; mso-hansi-font-family:Calibri; mso-hansi-theme-font:minor-latin; mso-bidi-font-family:Times New Roman; mso-bidi-theme-font:minor-bidi;}

Turbine inlet cooling with thermal energy storage

SUMMARY Turbine inlet cooling (TIC) is a common technology used to increase combustion turbine power output and efficiency. The use of mechanical or absorption chillers for TIC allows for more air cooling than evaporative methods and also imposes a significant parasitic load to the turbine. Thermal energy storage (TES) can be used to shift this load to off-peak hours. Use of thermal storage increases the flexibility of turbine power output, which benefits from the application of optimization tools. This paper explores the effect of combining TIC with TES to enhance the performance of a district cooling system that includes a gas turbine for power generation. The work illustrates how the system's performance can be enhanced using optimization. Application of multi-period optimization to the system that includes TES brings significant operational cost savings when compared with a system without thermal storage. It is also shown how TES provides demand-side energy management in the district cooling loop and supply-side management through the use of TIC. In addition to the optimization study, a thorough literature review is included that describes the current body of work on combining TIC with TES. Copyright © 2013 John Wiley & Sons, Ltd.

Influence of a TiС Coating on the Wear Resistance of Fe-Diamonds Composites

Some diamond tools use iron in their composition, and it is known that iron is a strong catalyst for the graphitization of diamonds. This graphitization occurs mainly during the processing of composite materials - conventional sintering or hot pressing, and during cutting operations. This work studies the influence of the behavior of the wear and adhesion, of iron-diamond composites, by considering the use of TiC coated diamonds. Samples were prepared by mixing powders of Fe (40 μm) and diamond (425 μm), and subsequent hot pressing at 35MPa/900°C, for a time of 3 minutes. It was evaluated the mechanism of wear, and the behavior of the samples during diametral compression test. It was used the cumulative times of 2, 6, 12 and 20 minutes during the testing of abrasion.

Bienestar universitario virtual, una estrategia para el fortalecimiento de la comunidad unadista con el uso de las TICs

La enseñanza online demanda el desarrollo de diferentes actividades de bienestar en un campus virtual con la utilización de herramientas propias de las TICs y la Web 2.0, esto permite generar un ambiente de aprendizaje virtual mucho más integral, dinámico e interesante. Según esto y como conclusiones finales del presente estudio, se entrega a consideración de la comunidad académica de la UNAD (Universidad Nacional Abierta y a Distancia) una propuesta estructural donde se identifican los elementos, tipos de interacción y los subsistemas del Sistema de Bienestar Universitario Virtual –BUV- que se propone como resultado final de la investigación.

Multiparametric MR Imaging of Sinonasal Diseases: Time-Signal Intensity Curve– and Apparent Diffusion Coefficient–Based Differentiation between Benign and Malignant Lesions

The sinonasal region is a platform for a broad spectrum of benign and malignant diseases, and image-based differentiation between benign and malignant diseases in this area is often difficult. Here, we evaluated multiparametric MR imaging with combined use of TICs and ADCs for the differentiation between benign and malignant sinonasal tumors and tumorlike diseases. TICs obtained from dynamic contrast-enhanced MR imaging and ADCs were analyzed on a lesion-by-lesion (overall TIC and ADC) and pixel-by-pixel (TIC and ADC mapping) basis in patients with benign (n = 21) or malignant (n = 23) sinonasal tumors and tumorlike diseases. The TICs were semiautomatically classified into 5 distinctive patterns (flat, slow uptake, rapid uptake with low washout ratio, rapid uptake with high washout ratio, and miscellaneous). ADCs were determined by using b-values of 500 and 1000 s/mm(2). Malignant sinonasal tumors had small (<25%) areas of the type 1 flat TIC profile as determined by pixel-by-pixel TIC analysis and large (≥50%) areas of low or extremely low ADCs (≤1.2 × 10(-3) mm(2/)s) as determined by ADC mapping. Consequently, stepwise classification on the basis of TICs and ADCs successfully (at 100% accuracy) discriminated malignant from benign sinonasal diseases in the present patient cohort. Multiparametric MR imaging by using TICs and ADCs may help differentiate benign and malignant sinonasal diseases.

Constructional carbide steels: A review of their fabrication, properties, and application

Data on the chemical compositions, structures, properties, and application of industrial carbide Ferro-TiC (United States) and Ferro-Titanit (Germany) steels, which are fabricated by sintering, are presented. The technologies of obtaining such materials based on the processes of sintering under pressure, namely, hot isostatic pressing (HIP), hot extrusion (HE), and hot stamping (HS) are developed. Using the HIP and HE methods, high-speed steel-TiC composites are produced in pilot scales (UkrNIISpetsstal’ and Dneprospetsstal’, Zaporozh’e, Ukraine). In Ukraine and Russia, technologies for obtaining the HS-based carbide steel with the use of TiC and Cr3C2 are developed. The prospects for fabrication of new types of composite materials with the use of boron carbide are shown.

Diseño Curricular Centrado en las Competencias que debe Adquirir el Estudiante del Grado en Derecho

The necessary skills that a student of a Law Degree should acquire to satisfy the current professional market are determined and analyzed. A field study among law professionals was done to determine the basic and technical skills that the labor market demands. A method for implementing them to achieve a renovation of the current teaching methods is proposed. As a result of the study, the necessity of using new teaching methods such as the change from the masterly lesson to a more practical one, the application of the anglo-saxon methodology to practical cases, the elaboration of research works, the Practicum and the use of TICs, have been detected. As a conclusion, the student skills along with the renewal of the teaching methods and the professional market have to be intimately put together to design new Law Study Planning.