857 resultados para Massive open online courses
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The book is a compilation of all available data at the time of publication (1965) on the subject of marine minerals together with the author's original ideas regarding their exploitation. It is one of the most significant publications on ocean resources. It is particularly focused on manganese deposits, their description, sedimentary setting, formation and geochemistry.
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HomeBank is introduced here. It is a public, permanent, extensible, online database of daylong audio recorded in naturalistic environments. HomeBank serves two primary purposes. First, it is a repository for raw audio and associated files: one database requires special permissions, and another redacted database allows unrestricted public access. Associated files include metadata such as participant demographics and clinical diagnostics, automated annotations, and human-generated transcriptions and annotations. Many recordings use the child-perspective LENA recorders (LENA Research Foundation, Boulder, Colorado, United States), but various recordings and metadata can be accommodated. The HomeBank database can have both vetted and unvetted recordings, with different levels of accessibility. Additionally, HomeBank is an open repository for processing and analysis tools for HomeBank or similar data sets. HomeBank is flexible for users and contributors, making primary data available to researchers, especially those in child development, linguistics, and audio engineering. HomeBank facilitates researchers' access to large-scale data and tools, linking the acoustic, auditory, and linguistic characteristics of children's environments with a variety of variables including socioeconomic status, family characteristics, language trajectories, and disorders. Automated processing applied to daylong home audio recordings is now becoming widely used in early intervention initiatives, helping parents to provide richer speech input to at-risk children.
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Calcitic belemnite rostra are usually employed to perform paleoenvironmental studies based on geochemical data. However, several questions, such as their original porosity and microstructure, remain open, despite they are essential to make accurate interpretations based on geochemical analyses.This paper revisits and enlightens some of these questions. Petrographic data demonstrate that calcite crystals of the rostrum solidum of belemnites grow from spherulites that successively develop along the apical line, resulting in a “regular spherulithic prismatic” microstructure. Radially arranged calcite crystals emerge and diverge from the spherulites: towards the apex, crystals grow until a new spherulite is formed; towards the external walls of the rostrum, the crystals become progressively bigger and prismatic. Adjacent crystals slightly vary in their c-axis orientation, resulting in undulose extinction. Concentric growth layering develops at different scales and is superimposed and traversed by a radial pattern, which results in the micro-fibrous texture that is observed in the calcite crystals in the rostra.Petrographic data demonstrate that single calcite crystals in the rostra have a composite nature, which strongly suggests that the belemnite rostra were originally porous. Single crystals consistently comprise two distinct zones or sectors in optical continuity: 1) the inner zone is fluorescent, has relatively low optical relief under transmitted light (TL) microscopy, a dark-grey color under backscatter electron microscopy (BSEM), a commonly triangular shape, a “patchy” appearance and relatively high Mg and Na contents; 2) the outer sector is non-fluorescent, has relatively high optical relief under TL, a light-grey color under BSEM and low Mg and Na contents. The inner and fluorescent sectors are interpreted to have formed first as a product of biologically controlled mineralization during belemnite skeletal growth and the non-fluorescent outer sectors as overgrowths of the former, filling the intra- and inter-crystalline porosity. This question has important implications for making paleoenvironmental and/or paleoclimatic interpretations based on geochemical analyses of belemnite rostra.Finally, the petrographic features of composite calcite crystals in the rostra also suggest the non-classical crystallization of belemnite rostra, as previously suggested by other authors.
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Las Universidades han tenido que adaptarse a los nuevos modelos de comunicación surgidos en la época de Internet. Dentro de estos nuevos paradigmas las redes sociales han irrumpido y Twitter se ha establecido como una de las más importantes. El objetivo de esta investigación es demostrar que existe una relación entre la presencia online de una Universidad, definida por la cantidad de información disponible en Internet, y su cuenta en Twitter. Para ello se analizó la relación entre la presencia online y los perfiles oficiales de las cinco universidades del País Vasco y Navarra. Los resultados demostraron la existencia de una correlación significativa entre la presencia online de las instituciones y el número de seguidores de sus respectivas cuentas. En segundo lugar, esta investigación se planteó si Twitter puede servir para potenciar la presencia online de una Universidad. Es por eso que se formuló una segunda hipótesis que buscaba analizar si tener varias cuentas en Twitter aumentaría la presencia online de las Universidades. Los hallazgos para esta segunda hipótesis demostraron una correlación muy significativa entre tener varios perfiles en Twitter y la presencia online de las Universidades. Así queda demostrada la importancia de la presencia online para las cuentas de Twitter y la relevancia de Twitter a la hora de potenciar la presencia online de los centros.
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Online gambling is a popular activity among adolescents. However, there has been a notable increase in the number of young people who suffer or are on the verge of pathological gambling. We review the impact of online gambling on young people and discuss the desiderability of the concept of “gambling responsibly” in order to alert of their risks and effectively prevent access to minors. The main factors associated with pathological gambling are the age of start, the family environment, the infl uence of advertising, the consumption of stimulants, and the attitudes of the peer group. Both the government and the gaming industry itself should consider these factors and develop comprehensive plans that ensure a safe and controlled model game. In this context, advertising must take into account criteria of consumer protection knowing that even if they are not allowed, children can easily have access to online gambling. All agents involved, including public and social agents, must provide mechanisms for prevention and awareness of a problem that arouses little social consciousness and excessive carelessness.
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Het doel van dit onderzoek is na te gaan in welke mate de online cognitieve gedragstherapie bij vrouwen met seksuele disfuncties effectief is voor wat betreft seksueel functioneren, seksuele lijdensdruk en de houding die de vrouwen hebben ten aanzien van seks. Drie vrouwen (gemiddelde leeftijd 39,6 jaar) met minstens één diagnose van een opwindingsgerelateerde seksuele disfunctie (seksuele interesse/opwindingsstoornis, orgasmestoornis) volgens de criteria van de DSM-5, hebben deelgenomen aan het onderzoek. Er wordt gebruik gemaakt van een single case A-B-fase design: zowel in de controlefase (Fase A) wanneer de proefpersoon nog geen internettherapie krijgt, als in de behandelfase (Fase B) worden verschillende metingen verricht. Hierbij wordt het effect van wel of geen internettherapie binnen één persoon onderzocht door de metingen in de controlefase (Fase A) te vergelijken met de metingen in de behandelfase (Fase B). Elke meting betreft een in te vullen zelfrapportage-vragenlijst (24 items) waarin de drie variabelen worden gemeten. Seksueel functioneren werd gemeten met drie items uit de Female Sexual Function Index (FSFI) (Rosen et al., 2000; ter Kuile et al., 2009); seksuele lijdensdruk met de Female Sexual Distress Scale Revised (FSDS-R) (Derogatis et al., 2008; ter Kuile et al., 2009); en de attitude ten aanzien van seks met een zestal items van de Sexual Opion Survey (SOS) (Fisher, Byrne, White, & Kelley, 1988). Middels de randomisatietoets is nagegaan wat het therapie-effect per proefpersoon en het algehele therapie-effect is. Uit de resultaten met betrekking tot het therapie-effect per proefpersoon blijkt dat de behandeling enkel voor de eerste proefpersoon een positief effect lijkt te hebben op het seksueel functioneren. Wat betreft de variabele seksuele lijdensdruk lijkt de behandeling enkel voor proefpersoon 2 een positief effect te hebben. Wat betreft de variabele attitude ten aanzien van seks lijkt er voor alle drie de proefpersonen geen effect van de behandeling aanwezig te zijn. Voor proefpersoon 1 lijkt de attitude ten aanzien van seks tijdens de behandelfase juist te verslechteren in plaats van te verbeteren. Uit de resultaten met betrekking tot het algehele therapie-effect is enkel voor de variabele seksueel functioneren een kleine kans aanwezig dat de behandeling een positief effect heeft.
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This Open Access (OA) Poster - ‘Destination Open Access: Getting Researchers on Board’, was devised by the Queen’s University Belfast’s OA Team. It outlines the advocacy strategy undertaken to strengthen researchers’ uptake of OA at the University. Research funders, such as the Higher Education Funding Council of England (HEFCE), are increasingly mandating that researchers make their work publically available via an institutional repository. It is therefore imperative that researchers and departments fully engage with open access to ensure future funding.
The team’s advocacy strategy centres around collaboration with the Heads of Schools, Subject Librarians, the Research and Enterprise Office and, most importantly, the researchers themselves. The team regularly organises training sessions and events, on understanding OA, funder compliance and using the institutional repository. We also run outreach activities, such as practical drop-in sessions, promotional give-aways, OA updates to library staff and direct communications to schools. Finally, the team maintain a strong online presence via LibGuides, LibAnswers, the Library Blog and Twitter. We utilise these platforms to highlight topical OA issues, to advertise events, to provide support materials and to interact with researchers.
Statistics indicate that researchers are increasingly engaging with the OA training, communications and outreach events. Since August 2014 over 1200 researchers have attended advocacy sessions. Additionally, the numbers of papers uploaded to the repository each year has steadily increased and there are now over 3, 000 full-text OA research outputs in the Queen’s Research Portal.
This reflects positively on the team’s established approach of working with researchers to develop an OA culture within the University. Whilst it is clear that an open access strategy is essential, support for the open access ethos must come from individual researchers and Schools in order for the University to reach its desired destination of maximum uptake of open access.
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SILVA, Alexandre Reche e. LAUDMUS: rumo à implantação e gerenciamento de uma lista de audição musical online. In: ENCONTRO REGIONAL DA ABEM NORDESTE (Associação Brasileira de Educação Musical), 9, Natal, RN, 2010. Anais eletronicos... Natal, RN, 2010.Trabalho Completo. Disponivel em:
Resumo:
With an early focus on achieving a critical mass of released open educational content, challenges of how resources can be found by beneficiaries has been highlighted as a major issue. As we move forward further research and investigation is required to understand the most effective approaches of reaching out to and engaging a globally dispersed population of education users. In 2014 I conducted a small scale scoping study into the discoverability strategies identified as being used by higher education institutions releasing OERs in the UK. This was mapped against a body of literature on our understanding of user behaviour for online resource discovery and the technologies available to support this to identify trends and gaps as opportunities for improvements. Please note this report was not originally written for publication. I hope however it is of value to the open education community and will act as a starting point for further research in this area.
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The key idea of the book is that courses for adults need to be designed and not just put together haphazardly without careful thought and planning. This central argument is reflected in the title of the book, which sees ‘creating’ and ‘design for learning’ as core ideas and permeates the thinking and framework offered as a template for designing learning. For me, this reflects the balance between flexibility and structure that is needed for designing and teaching courses for adults in a variety of contexts.
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To evaluate the biodistribution of sodium pertecnetate (Na99mTcO4) in organs and tissues, the morphometry of remnant intestinal mucosa and ponderal evolution in rats subjected to massive resection of the small intestine. Methods: Twenty-one Wistar rats were randomly divided into three groups of 7 animals each. The short bowel (SB) group was subjected to massive resection of the small intestine; the control group (C) rats were not operated on, and soft intestinal handling was performed in sham rats. The animals were weighed weekly. On the 30th postoperative day, 0.l mL of Na99mTcO4, with mean activity of 0.66 MBq was injected intravenously into the orbital plexus. After 30 minutes, the rats were killed with an overdose of anesthetic, and fragments of the liver, spleen, pancreas, stomach, duodenum, small intestine, thyroid, lung, heart, kidney, bladder, muscle, femur and brain were harvested. The biopsies were washed with 0.9% NaCl.,The radioactivity was counted using Gama Counter WizardTM 1470, PerkinElmer. The percentage of radioactivity per gram of tissue (%ATI-g) was calculated. Biopsies of the remaining jejunum were analysed by HE staining to obtain mucosal thickness. Analysis of variance (ANOVA) and the Tukey test for multiple comparisons were used, considering p<0.05 as signifi cant. Results: There were no signifi cant differences in %ATI-g of the Na99mTcO4 in the organs of the groups studied (p>0.05). An increase in the weight of the SB rats was observed after the second postoperative week. The jejunal mucosal thickness of the SB rats was signifi cantly greater than that of C and sham rats (p<0.05). Conclusion: In rats with experimentally-produced short bowel syndrome, an adaptive response by the intestinal mucosa reduced weight loss. The biodistribution of Na99mTcO4 was not affected by massive intestinal resection, suggesting that short bowel syndrome is not the cause of misleading interpretation, if an examination using this radiopharmaceutical is indicated
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The Mobile Information Literacy curriculum is a growing collection of training materials designed to build literacies for the millions of people worldwide coming online every month via a mobile phone. Most information information and digital literacy curricula were designed for a PC age, and public and private organizations around the world have used these curricula to help newcomers use computers and the internet effectively and safely. The better curricula address not only skills, but also concepts and attitudes. The central question for this project is: what are the relevant skills, concepts, and attitudes for people using mobiles, not PCs, to access the internet? As part of the Information Strategies for Societies in Transition project, we developed a six-module curriculum for mobile-first users. The project is situated in Myanmar, a country undergoing massive political, economic, and social changes, and where mobile penetration is expected to reach 80% by the end of 2015 from just 4% in 2014. Combined with the country’s history of media censorship, Myanmar presents unique challenges for addressing the needs of people who need the ability to find and evaluate the quality and credibility of information obtained online, understand how to create and share online information effectively, and participate safely and securely.