On the wave excitation in the turbulent meteor trace

The solution to the problem of excitation of longitudinal and transverse electromagnetic waves in randomly inhomogeneous media is reduced to the derivation of a complex effective dielectric constant (EDC) tensor which nonlocally connects together the average macroscopic electromagnetic fields in continuous media, it is implied that the field values which are rapidly fluctuating on a microscopic scale in space and time become smoothed out in a specified way due to the inhomogeneous mixing of diffusion. Proceedings from the derived general expression for the EDC tensor new modes of longitudinal and transverse electromagnetic wave generation due to fluctuation in the parameters of the medium was predicted. In this connection, it is of interest to investigate the peculiarities of electromagnetic longitudinal and transverse wave propagation in such randomly inhomogeneous media where, apart from the charged particle concentration change, the random spatial and temporal changes of natural frequency of closely located oscillators take place

Entorno virtual Facebook como herramienta de aprendizaje del diseño web en la Corporación Unificada Nacional de Educación Superiorsede Ibagué

Facebook se perfila como el sitio de redes sociales más popular del mundo. En Colombia  es  muy  conocido  y  se  emplea  en  la  Corporación  Unificada  Nacional  de Educación Superior sede Ibagué para desarrollar destrezas y habilidades de aprendizaje. Los estudiantes que tienen Facebook ingresan al menos dos horas diarias en promedio al mes, dedicadas al ocio, la  socialización, la  mejora del perfil y otras actividades, como a aprender  a  diseñar  sitios  webs.  En  este  artículo  se  describe  el  modelo  del  entorno  virtual  de  aprendizaje  en  Facebook  que  se  ha  denominado  “ingeniosos  del  Facebook  EV A”, basado  en  una  experiencia  de  innovación  pedagógica de la  clase Diseño Web, que incluye  las  tecnologías  de la  información  y las  comunicaciones  (TIC)  con  un  entorno  virtual  que  aplica  el  aprendizaje  con  actividades  apoyadas en la  tecnología  y accesibles en cualquier lugar  (u-learning),  teniendo  en cuenta  que  puede  ser  de  forma  ubicua,  colaborativa,  que  aproveche  la  usabilidad  de  la  herramienta  y  los  procesos  fáciles  de  implementar

Booktubers: lectura en red, nuevas literacidades y aplicaciones didácticas

Se presenta una revisión sistemática de la literatura científica sobre la comunidad Booktuber (jóvenes lectores que comentan y reseñan libros en la plataforma YouTube) documentada a partir de 2009. El corpus consiste en 43 publicaciones, que se analizan desde dos categorías: a) aproximaciones al estudio de los Booktubers desde diferentes perspectivas disciplinares y metodologías de investigación, y b) aplicaciones didácticas que han surgido a partir de estas prácticas. El análisis muestra las fases de desarrollo de este ámbito de investigación, y cómo se ha ido estructurado alrededor de ciertos temas de interés, perspectivas y metodologías. Además, se reflexiona sobre la necesidad de profundizar en el análisis discursivo y la inclusión de la investigación participativa con los propios Booktubers para mejorar la comprensión del fenómeno y su aplicación didáctica dentro de las aulas.This article presents a systematic review of the scientific literature related to the study of the Booktuber community (young readers who comment and review books on YouTube) documented since 2009. The corpus is composed of 43 publications, which are analyzed in two categories: a) approaches to the study of Booktubers from different disciplinary perspectives and research methodologies, and b) didactic applications that have emerged from these practices. The analysis shows the development phases of this field of research, and how it has been structured around certain topics of interest, perspectives and methodologies. In addition, we reflect on the need to deepen the discursive analysis and the inclusion of participatory research with the Booktubers themselves to improve the understanding of the phenomenon and its didactic application within the classrooms

Application of PRA technique for field problem identification

This paper deals with the application of participatory rural appraisal technique for identification of agricultural field problems of Maroorpatti village . The economic importance of problems was also worked out

An index based road feature extraction from LANDSAT-8 OLI images

Road feature extraction from the remote sensing images is an arduous task and has a significant role in various applications of urban planning, updating the maps, traffic management, etc. In this paper, a new band combination (B652) to form a road index (RI) from OLI multispectral bands based on the spectral reflectance of asphalt, is presented for road feature extraction. The B652 is converted to road index by normalization. The morphological operators (top-hat or bottom-hat) uses on RI to enhance the roads. To sharpen the edges and for better discrimination of features, shock square filter (SSF), is proposed. Then, an iterative adaptive threshold (IAT) based online search with variational min-max and Markov random fields (MRF) model are used on the SSF image to segment the roads and non-roads. The roads are extracting by using the rules based on the connected component analysis. IAT and MRF model segmentation methods prove the proposed index (RI) able to extract road features productively. The proposed methodology is a combination of saturation based adaptive thresholding and morphology (SATM), and saturation based MRF (SMRF), applied to OLI images of several urban cities of India, producing the satisfactory results. The experimental results with the quantitative analysis presented in the paper

Scotland, Catalonia and the “right” to self-determination: a comment suggested by Kathryn Crameri’s “Do Catalans Have the Right to Decide?

No abstract available

Roadmap for the Introduction of Smart Grids in Ecuador

Distributed generation and smart grids are the reality of an efficient electricity grid, at work an analysis of the advantages that distinguish both concepts related to the scenario generation, transportation, distribution and supply of energy is provided. Some results achieved in the related study of the solar potential and wind energy, focused on the use of these resources will improve in quality future university exposed electrical service. The main elements that have been considered to be incorporated in the roadmap for the introduction of smart grids in Ecuador expose

Impact of farmer producer organization on organic chilli production in Telangana, India

33-43Input intensive modern agriculture is adversely affecting human health and environment. Farmers of Telangana state have taken up organic chilli production with the assistance of FPOs. Primary data was collected from 120 farmers comprising 60 members and 60 non-members of FPO from two districts of Telangana through semi-structured interviews. The study found that the shift to organic chilli cultivation led to decrease in input use by 9.06% and yield by 23.4%. However, the gross return from organic chilli farming was 13.85% higher over that realised by non-members due to the efforts of FPOs. DEA analysis revealed that a higher proportion of member farmers (48%) had technical efficiency of more than 60% as compared to non-members (18%). FPOs were instrumental in reduction of transaction cost and number of intermediaries leading to the realization of a higher proportion of producer’s share in consumer’s rupee (65%). Discriminant function analysis revealed that the FPO promoting institutions (44%), ease of doing business (16%) and infrastructure facilities like storage, irrigation, electricity and credit have high influence on performance of the states with respect to FPOs

A Proof-of-Concept IoT System for Remote Healthcare Based on Interoperability Standards

[EN] The Internet of Things paradigm in healthcare has boosted the design of new solutions for the promotion of healthy lifestyles and the remote care. Thanks to the effort of academia and industry, there is a wide variety of platforms, systems and commercial products enabling the real-time information exchange of environmental data and people's health status. However, one of the problems of these type of prototypes and solutions is the lack of interoperability and the compromised scalability in large scenarios, which limits its potential to be deployed in real cases of application. In this paper, we propose a health monitoring system based on the integration of rapid prototyping hardware and interoperable software to build system capable of transmitting biomedical data to healthcare professionals. The proposed system involves Internet of Things technologies and interoperablility standards for health information exchange such as the Fast Healthcare Interoperability Resources and a reference framework architecture for Ambient Assisted Living UniversAAL.This research received no external funding. The APC was funded by Research group Information and Communication Technologies against Climate Change (!CTCC) of the Universitat Politecnica de Valencia, Spain.Lemus Zúñiga, LG.; Félix, JM.; Fides Valero, Á.; Benlloch-Dualde, J.; Martinez-Millana, A. (2022). A Proof-of-Concept IoT System for Remote Healthcare Based on Interoperability Standards. Sensors. 22(4):1-17. https://doi.org/10.3390/s2204164611722