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"Abstract Many people believe renewable energy sources to be capable of substituting fossil or nuclear energy. However there exist very few scientifically sound studies, which apply due diligence to substantiating this impression. In the present paper, the case of photovoltaic power sources in regions of moderate insolation is analysed critically by using the concept of Energy Return on Energy Invested (ERoEI, also called EROI). But the methodology for calculating the ERoEI differs greatly from author-to-author. The main differences between solar PV Systems are between the current ERoEI and what is called the extended ERoEI (ERoEI EXT). The current methodology recommended by the International Energy Agency is not strictly applicable for comparing photovoltaic (PV) power generation with other systems. The main reasons are due to the fact that on one hand, solar electricity is very material-intensive, labour-intensive and capital-intensive and on the other hand the solar radiation exhibits a rather low power density."

"Call it counterintuitive clickbait if you must, but Forbes' Pascal-Emmanuel Gobry made an intriguing argument when he granted the title of "Language of the Future" to French, of all tongues. "French isn't mostly spoken by French people and hasn't been for a long time now," he admits," but "the language is growing fast, and growing in the fastest-growing areas of the world, particularly sub-Saharan Africa. The latest projection is that French will be spoken by 750 million people by 2050. One study "even suggests that by that time, French could be the most-spoken language in the world, ahead of English and even Mandarin." I don't know about you, but I can never believe in any wave of the future without a traceable past. But the French language has one, of course, and a long and storied one at that. You see it visualized in the information graphic above (also available in suitable-for-framing prints!) created by Minna Sundberg, author of the webcomic Stand Still. Stay Silent. "When linguists talk about the historical relationship between languages, they use a tree metaphor," writes Mental Floss' Arika Okrent. "An ancient source (say, Indo-European) has various branches (e.g., Romance, Germanic), which themselves have branches (West Germanic, North Germanic), which feed into specific languages (Swedish, Danish, Norwegian)." Sundberg takes this tree metaphor to a delightfully lavish extreme, tracing, say, how Indo-European linguistic roots sprouted a variety of modern-day living languages including Hindi, Portuguese, Russian, Italian - and, of course, our Language of the Future. The size of the branches and bunches of leaves represent the number of speakers of each language at different times: the likes of English and Spanish have sprouted into mighty vegetative clusters, while others, like, Swedish, Dutch, and Punjabi, assert a more local dominance over their own, separately grown regional branches. Will French's now-modest leaves one day cast a shadow over the w

"Call it counterintuitive clickbait if you must, but Forbes' Pascal-Emmanuel Gobry made an intriguing argument when he granted the title of "Language of the Future" to French, of all tongues. "French isn't mostly spoken by French people and hasn't been for a long time now," he admits," but "the language is growing fast, and growing in the fastest-growing areas of the world, particularly sub-Saharan Africa. The latest projection is that French will be spoken by 750 million people by 2050. One study "even suggests that by that time, French could be the most-spoken language in the world, ahead of English and even Mandarin." I don't know about you, but I can never believe in any wave of the future without a traceable past. But the French language has one, of course, and a long and storied one at that. You see it visualized in the information graphic above (also available in suitable-for-framing prints!) created by Minna Sundberg, author of the webcomic Stand Still. Stay Silent. "When linguists talk about the historical relationship between languages, they use a tree metaphor," writes Mental Floss' Arika Okrent. "An ancient source (say, Indo-European) has various branches (e.g., Romance, Germanic), which themselves have branches (West Germanic, North Germanic), which feed into specific languages (Swedish, Danish, Norwegian)." Sundberg takes this tree metaphor to a delightfully lavish extreme, tracing, say, how Indo-European linguistic roots sprouted a variety of modern-day living languages including Hindi, Portuguese, Russian, Italian - and, of course, our Language of the Future. The size of the branches and bunches of leaves represent the number of speakers of each language at different times: the likes of English and Spanish have sprouted into mighty vegetative clusters, while others, like, Swedish, Dutch, and Punjabi, assert a more local dominance over their own, separately grown regional branches. Will French's now-modest leaves one day cast a shadow over the w

Ver At School "France in the Year 2000 (XXI century) - a series of futuristic pictures by Jean-Marc Côté and other artists issued in France in 1899, 1900, 1901 and 1910. Originally in the form of paper cards enclosed in cigarette/cigar boxes and, later, as postcards, the images depicted the world as it was imagined to be like in the year 2000. There are at least 87 cards known that were authored by various French artists, the first series being produced for the 1900 World Exhibition in Paris."

Ver At School "France in the Year 2000 (XXI century) - a series of futuristic pictures by Jean-Marc Côté and other artists issued in France in 1899, 1900, 1901 and 1910. Originally in the form of paper cards enclosed in cigarette/cigar boxes and, later, as postcards, the images depicted the world as it was imagined to be like in the year 2000. There are at least 87 cards known that were authored by various French artists, the first series being produced for the 1900 World Exhibition in Paris."

"Manual de orientación para participar en redes sociales Author Banco Interamericano de Desarrollo (BID); La Secretaria de Comunicação Social de la Presidencia del Brasil La Secretaria de Comunicação Social (SECOM) de la Presidencia del Brasil en acuerdo con la División de Capacidad Institucional (ICS) del Banco Interamericano de Desarrollo (BID) han elaborado este manual para orientar la actuación del sector público en las redes sociales. El manual tiene como objetivo establecer buenas prácticas y guiar a los agentes de la administración pública latinoamericana en la utilización de las redes sociales, incluso la generación de contenido, la interacción con el usuario y el accionar en los casos de crisis. Es una guía para funcionarios públicos y ciudadanos que estén preocupados por el futuro de las relaciones entre gobierno y ciudadanía."

Reseña de Aumentaty Author en la red de buenas prácticas 2.0 del INTEF

"She demanded that all participating staff members surrender their phones and other such personal devices. The book you hold in your hands would not exist had high school been a pleasant experience for me… It was on those quiet weekend nights when even my parents were out having fun that I began making serious attempts to make stories in comics form. - Adrian Tomine, introduction to 32 Stories Computer Science Professor Calvin Newport's recent book, Deep Work, posits that all that shallow phone time is creating stress, anxiety, and lost creative opportunities, while also doing a number on our personal and professional lives.Author Manoush Zomorodi's recent TED Talk on how boredom can lead to brilliant ideas, below, details a weeklong experiment in battling smartphone habits, with lots of scientific evidence to back up her findings."

"eXeLearning is an easy to use authoring tool under GPL-2+ to create educational web contents. Installing eXeLearning on Ubuntu: sudo snap install exelearning eXeLearning generates interactive contents in HTML5 and other formats and it allows you to create websites including text, images, interactive activities, image galleries, evaluating rubrics, multimedia clips, games... All the educational materials can be exported in different formats: SCORM, IMS, ePub, responsive HTML website, XLIFF... eXeLearning is available for GNU/Linux, Microsoft Windows and Mac OS X. Go to https://exelearning.net/ for more download options."

En este portal ofrecen, anualmente, desde el 2012 informes con una selección de estrategias educativas punteras de acuerdo con expertos de diferentes entidades británicas e internacionales. Sin duda, son un referente a tener en cuenta. This series of annual reports explores new forms of teaching, learning and assessment for an interactive world, to guide teachers and policy makers in productive innovation. The reports are collaboratively authored by researchers in the Institute of Educational Technology at The Open University, UK, together with different external partners every year. The 2020 report, the eighth in the series, has been written as a collaboration between researchers at the Institute of Educational Technology, The Open University, UK, and the National Institute for Digital Learning (NIDL), Dublin City University, Ireland.

"LA GANADERÍA ELEGIDA - 2 DARWINISMO Y POBLACIÓN"

Idea para el verano en Blog Aula e-book: Cómo crear fácilmente un libro digital con contenidos elegidos por nosotros http://t.co/To18nLzT