English Language Teaching

The purpose of this study is to shed light on a developed approach to be adopted in EFL speaking classes and show the effectiveness of using YouTube videos and Listening Audio Tracks Imitation (YATI) for teaching English language in speaking classrooms as pedagogical tools to improve EFL learners’ speaking skills. To find out the impact of using You Tubes and Audio Tracks Imitation (YATI) on improving speaking skills of EFL learners, the qualitative experimental approach is used to conduct this study. The participants of this study are 48 students studying major English, divided into two sections studying Listening & Speaking Course at College of Science & Arts Muhayil, King Khalid University. One section was used as a control group and the other as an experimental group. Data was collected using speaking tests results which were analyzed using SPSS Pearson correlation coefficient. The results revealed that employing YATI technique has a positive impact on the effectiveness of...

JOALL (Journal of Applied Linguistics and Literature), 2022

This study aims to investigate whether or not the learning strategy using YouTube videos from the Shaw English Online Channel is effective on students' speaking skills in asking questions and giving opinions. This research was conducted at Islamic Senior High School 2 North Bengkulu. The method applied in this research was quantitative with a quasi-experimental design. The total sample used for this study was 70 students consisting of 35 students from the eleventh grade of natural sciences class 1 (experimental class) and 35 students from the class eleventh grade of natural sciences class 2 (control class). The instrument in this study was an online oral test and the data was the students' pre-test and post-test scores which were calculated and analyzed using SPSS 26 software. Then, the results obtained were used to determine whether there was an effect given by variable x to variable v. In conclusion, the use of learning strategies using media from the Shaw English Onlin...

2018

English Education: Jurnal Tadris Bahasa Inggris

The study described how video projects were used to enhance the speaking performance of EFL college students in IAIN Kediri, Indonesia. The researcher found that students faced technical and personal problems appeared in the speaking class. A classroom action research was applied to the study to solve the problems. Then, the data was analyzed descriptively. The result of the study identified that students emerged confidence, fluency, good collaboration and excitement in the speaking class. The study resulted that obstacles of speaking English can be solved alternatively through the used of song videos as the project by practicing the aspects of the language in song lyrics and producing videos which then were spread out through YouTube website in order to appreciate their work and creativity as well as to share it as useful sources of teaching media and also entertainment.

Geografiska Annaler: Series B, Human Geography, 2011

the European Union anticipates alleviating future energy shortages and fulfilling renewable energy mandates by importing "green" electricity from Africa. Historical precedent and environmental consequences have largely been ignored. this article presents an environmental history of African electricity generation at a continental scale, tracing its parallel developments with colonialism, as well as its pursuit in the independence eras of development assistance and neoliberalism. initially electricity served European interests. independent governments' development policies involved electrification primarily for industrial development; in north Africa, universal access was also a priority. recurrent themes and cycles of environmental constraint, environmental disruption, and displacement of consequences from one ecosystem to another are addressed. Highlighted are interrelationships among electricity generation, fuel supplies, ecosystems, and water cycles. late twentieth century technologies and globalized markets re-valued African rivers and deserts as potential energy sources. mega-engineering projects were rejuvenated or proposed. rural electrification was labelled uneconomic social welfare unrelated to economic development policies of selling power through national, regional, continental and intercontinental interconnections. Historical analysis suggests new areas of research for sustainable development and alternatives to declensionist narratives. Decentralized, small-scale plants offer models of electricity supply for industrial and domestic needs, while investment in rural electrification produced measureable economic benefit at national levels. will the EU renewable energy mandate simply displace Europe's environmental problems to Africa? can Africa afford another water-intensive export commodity? will the new African century follow well-established patterns of exploitation, or take new, sustainable directions?

2009

In this paper we have described several Ramanujan's equations and obtained some mathematical connections with various formulas concerning different topics of String Cosmology and Black Holes Physics.(update version 23/02/20) v3 - REVISITED AND DEFINITIVE VERSION 13.12.2020

www.ts.ucr.ac.cr, 2012

La ponencia presenta la propuesta de construcción de un modelo de análisis de políticas públicas para el Trabajo Socialdesde los aportes metodológicos del modelo de Redes de Políticas Públicas, a partir de la experiencia profesional del autor en la localidad de Kennedy (Bogotá) durante cinco años y de la posterior realización de la investigación “Análisis del componente de inclusión social de la política pública de seguridad alimentaria en la localidad de Kennedy – Bogotá” realizada en la Universidad Externado de Colombia en 2012. El documento establece los aspectos pertinentes del modelo de análisis en los niveles micro, meso y macro, articulados al quehacer profesional del Trabajo Social, en la intervención en procesos de inclusión social de actores comunitarios, que construyen valor público y que aportan a la construcción de políticas públicas en el contexto local, regional y nacional, siendo las redes sociales el modelo por excelencia del Trabajo Social latinoamericano.

Changes in electrical conductance of Cs3PMo12O40 and Cs4PVMo11O40 were studied in dry and humid atmospheres. The electrical conductivity is given by protonic and/or electronic conduction depending on temperature.

Scientific Reports, 2013

Control of the motion of domain walls in magnetic nanowires is at the heart of various recently proposed three-dimensional (3D) memory devices. However, fabricating 3D nanostructures is extremely complicated using standard lithography techniques. Here we show that highly pure 3D magnetic nanowires with aspect-ratios of ,100 can be grown using focused electron-beam-induced-deposition. By combining micromanipulation, Kerr magnetometry and magnetic force microscopy, we determine that the magnetisation reversal of the wires occurs via the nucleation and propagation of domain walls. In addition, we demonstrate that the magnetic switching of individual 3D nanostructures can be directly probed by magneto-optical Kerr effect. R ecently, intense research carried out on controlling the motion of domain walls (DWs) in magnetic nanowires (NWs) has led to the development of memories based on this concept 1-5 . To make these devices commercially viable, their storage capacity has to be substantially increased, requiring the extension of these concepts into the third dimension 1,6 . The paradigmatic example proposed for a device based on 3D magnetic NWs is the vertical racetrack memory 1 , where U-shaped NWs normal to the substrate act as shift registers for DWs which move up and down by applying electrical currents. However, whereas the two-dimensional (2D) version of this memory and other functional NW devices are a reality, their 3D realisation faces great challenges using similar lithography methods. Most techniques more suited for the growth of vertical NWs, such as electrodeposition, cannot grow complex 3D geometries, and the characterisation of single nanostructures requires either dissolving the membrane where the NWs have been grown, followed by dispersing the NWs on a substrate for subsequent characterisation 7,8 , or sophisticated contact strategies 9,10 . Here, we use focused electron beam-induced-deposition (FEBID) to grow high aspect-ratio functional 3D NWs. FEBID is a nanolithography technique consisting of the local chemical-vapour-deposition of a gas adsorbed on a substrate, where molecules are decomposed by the interaction with a focused beam of keV-range electrons 11,12 . It can be considered as a ''direct writing'' nanolithography technique, needing neither resists nor templates, which gives it unique properties for the fabrication of complex 3D nanostructures 13 . For the growth of magnetic NWs, we have used Co 2 (CO) 8 . We previously showed that 2D FEBID structures with up to 95% Co can be deposited using this gas precursor, when the growth is carried out at the precursor-limited-regime 14 . This contrasts with most FEBID materials, where the metallic content is typically not higher than 30-40%. In addition, we proved that nanostripes (2D-NWs with rectangular section) based on this material present good DW conduit properties 15 . Recent works show that functional 2D Co deposits can be fabricated at high resolutions . In this work, we fabricate 3D cobalt NWs by FEBID, at the cross-over between the electron-and precursor-limited regime. Under these growth conditions, high aspect-ratio 3D NWs are grown, which present high metallic content, low roughness and functional magnetic properties.

Astrophysical Journal, 2007

Characterizing multiplicity in the very low mass (VLM) domain is a topic of much current interest and fundamental importance. Here we report on a near-infrared adaptive optics imaging survey of 28 young brown dwarfs and VLM stars, 26 of which are in the Chamaeleon I star-forming region, using the ESO Very Large Telescope. Our findings in Cha I -- the

An Analysis on the Life of the Virgin Queen Elizabeth I of England and the Era of the Protestant Reformation.

As plantas apresentaram mais cádmio nas raízes, seguido dos caules e das folhas. A maior acumulação de cádmio nas raízes foi um resultado que variou de acordo com o aumento de salinidade em águas contaminadas. Os resultados indicaram que a salinidade pode influenciar o transporte de cádmio das raízes para as folhas em S. maritimus.