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GATE Mechanical Engineering Mock Test Question - 0 views

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    High difficulty level Mechanical Engineering question that has high probability of appearing in your GATE exam on 15 - 16 February 2014.
Arthur Cane

Excellent SEO Service That Last - 1 views

I have been working with Syntactics Inc. for five years now, and I have entrusted my online business to them for that long because I found their services really excellent. In fact, for that five...

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started by Arthur Cane on 28 Dec 11 no follow-up yet
Barbara Lindsey

Ping - Google Goggles, Searching by Image Alone - NYTimes.com - 0 views

  • It’s not hard to imagine a slew of commercial applications for this technology. You could compare prices of a product online, learn how to operate that old water heater whose manual you have lost or find out about the environmental record of a certain brand of tuna. But Goggles and similar products could also tell the history of a building, help travelers get around in a foreign country or even help blind people navigate their surroundings.
  • But recognizing images at what techies call “scale,” meaning thousands or even millions of images, is hugely difficult, partly because it requires enormous computing power. It turns out that Google, with its collection of massive data centers, has just that.
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    Google unveiled a smartphone application called Goggles. It allows users to search the Web, not by typing or by speaking keywords, but by snapping an image with a cellphone and feeding it into Google's search engine.
Barbara Lindsey

CC in Education - Creative Commons - 0 views

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    Includes wiki, blog, directory and search engines on OER
Barbara Lindsey

Academic Evolution: Academia must divest from Intellectual Apartheid - 0 views

  • Academia must divest from Intellectual Apartheid
  • I mean academia’s policy that enforces an unnecessary and counterproductive intellectual divide. What intellectual divide? It is that gaping chasm between two opposing models of disseminating knowledge: toll access and open access.
  • lack of access to technology (dubbed the "digital divide") seriously handicaps half the world's population. That is a giant problem but one being gradually ameliorated by mobile telephony and economic forces.
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  • Academics and their institutions have sold out to economic interests in the name of preserving the only system trustworthy enough to produce authoritative information.
  • I believe it is fair to label as “apartheid” any artificial social construct that privileges an elite minority to the detriment of a majority. The artificial construct doing that in the world of knowledge is the toll-access system of traditional scholarly communication.
  • Despite all the digitizing and online publishing now extant, despite the proliferation of websites and web users, despite the largely up-to-date technological infrastructure within academia, it is still the case that most of the world’s most important knowledge remains out of reach of most of the world. Keep that simple fact central in your mind as I revisit the mission statements of universities and academic presses that purport to promote scholarship for the general benefit of humankind.
  • “The mission of a university press,” said Daniel Coit Gilman, President of Johns Hopkins University in 1880, “is to assist the university in fulfilling its noble mission ‘to advance knowledge, and to diffuse it not merely among those who can attend the daily lectures—but far and wide.'" Universities and academic publishers are ostensibly dedicated to the very opposite of keeping people and knowledge apart. And yet, they do.
  • You really don’t need to go to the developing world to recognize that advanced knowledge is a big club with stiff entrance fees. Even middle class Americans will think twice before throwing down $30 for a scholarly article. How likely will this knowledge ever reach scholars in Mexico or India? And just how broadly can the editors of Subjectivity expect it to reach when subscribing costs $503/year?
  • Academic authors, editors, publishers, and distributors are simply not in the business of reaching the masses; they are in the business of reaching other specialists.
  • Academia banks on Intellectual Apartheid; its knowledge economy only rewards specialists publishing to specialists. In such a world, the “influence” of scholarship is not often correlated to real-world effects; it is usually correlated to how well a given work contributes to the specialist knowledge economy. Citation indexes measure reputations among specialists; “impact factor” relates not to real-world impact, but to reputation within the closed system.
  • one of the great secrets of academic publishing
  • academia could care less about whether anything its scholars do actually makes a difference in the world, except for the occasional puff piece to show to contributors or alumni. Reaching out to the whole world is the stuff that convocation speeches and university mission statements are made of, but in the day-to-day world of academia, actually reaching the world with one’s refined knowledge is not rewarded. In fact, it is often punished. Generalists, such as those who are using blogging to actually talk to the public about their ideas, are threatened with lack of tenure or advancement if they waste their time in anything but publications oriented towards their disciplinary peers.
  • A university’s reward system requires its faculty to publish in peer-reviewed journals. Peer-reviewed journals serve the purpose of authenticating knowledge, but at the same time they also wall in that knowledge by making it available only to those willing to pay for it.
  • There is an assumption that if something is “published” (meaning published in a conventional, peer-reviewed journal), then it is appropriately circulating and available.
  • It may be “circulating” among subscribers (a few hundred), but it is simultaneously being kept from the online public (a few billion).
  • Essentially, scholars whose work is measured in terms of how often their articles are cited within peer-reviewed literature demonstrate not so much the actual worth or impact of their ideas as they demonstrate their fidelity to a closed knowledge economy. Impact factor statistics are really loyalty points for the gentlemen's club: if you impressed other members of the club, you get to stay in it. If you try for other audiences--like the one's loftily imagined in university mission statements--you show disloyalty to the club.
  • scholars underestimate the value and influence of their work, voluntarily giving up what their work might mean and do if circulating among a public that is literally six or seven orders of magnitude larger in size that the subscriber base of the most used journals. And it's a shame that broader, open, multi-disciplinary review is considered inferior to one-time assessment by two or three experts. Can we really be sure that conventional peer-reviewed knowledge is as reliable as it pretends to be when its adherents resist transparency and the checks and balances of exposing this knowledge more broadly?
  • I call upon you to join me in a full divestment from intellectual apartheid.
  • Here's how each academic stakeholder can fight Intellectual Apartheid: Scholars: Publish your work in Open Access journals or arrange open access for publications in conventional journals. Use Creative Commons licensing (rather than signing away copyright) in order to preserve access to your own work Deposit your publications in institutional or disciplinary archives to ensure permanent open access and the broadest exposure to search engines. Refuse to peer-review manuscripts or serve in editorial capacities for any journal that does not accommodate open access. Cancel subscriptions to toll-access scholarship Wean yourself from using any research materials that an everyday person from a developing country wouldn't have full access to via the Internet
  • In training students, patrons, and faculty, teach them more about how and why to use open access resources rather than how to use expensive proprietary databases and services. Work with administrators to educate faculty about the benefits of open access publishing and rights management.
  • Administrators Create a university-wide mandate (as Harvard has done), requiring faculty to retain copyright of their scholarship and to license the non-exclusive depositing of that scholarship in the institutional archive. Update promotion and tenure policies to favor open access publications and to accommodate evolving scholarly genres (such as data sets, software, and scholarly tools that build the cyberinfrastructure). Require chairs and deans to educate faculty on evolving academic publishing models and to ready their conversion to using and publishing open access scholarship.
Kevin Gaugler

Using Twitter as an Education Tool - Search Engine Watch (SEW) - 0 views

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    Using Twitter as an Education Tool
Barbara Lindsey

Stanford University prepares for an amazing "bookless library" - San Jose Mercury News - 0 views

  • It is only half the size of the current Engineering Library, but saves its space for people, not things. It features soft seating, "brainstorm islands," a digital bulletin board, and group event space. There are few shelves and it will feature a self-checkout system.
  • The sciences are the perfect place to test bookless libraries, librarians say. In math, online books tend to render formulas badly. And those in the humanities, arts and social sciences still embrace the serendipitous discoveries made while browsing. Johanna Drucker, UCLA professor of information studies, moreover asks: "What version of a work should be digitized as representative? Leo Tolstoy's original Russian text? Or the Maude translation? Should we digitize the sanitized version of Mark Twain's classics, or the originals?"
Barbara Lindsey

Jean Lave, Etienne Wenger and communities of practice - 1 views

  • Supposing learning is social and comes largely from of our experience of participating in daily life? It was this thought that formed the basis of a significant rethinking of learning theory in the late 1980s and early 1990s by two researchers from very different disciplines - Jean Lave and Etienne Wenger. Their model of situated learning proposed that learning involved a process of engagement in a 'community of practice'. 
  • When looking closely at everyday activity, she has argued, it is clear that 'learning is ubiquitous in ongoing activity, though often unrecognized as such' (Lave 1993: 5).
  • Communities of practice are formed by people who engage in a process of collective learning in a shared domain of human endeavour: a tribe learning to survive, a band of artists seeking new forms of expression, a group of engineers working on similar problems, a clique of pupils defining their identity in the school, a network of surgeons exploring novel techniques, a gathering of first-time managers helping each other cope. In a nutshell: Communities of practice are groups of people who share a concern or a passion for something they do and learn how to do it better as they interact regularly. (Wenger circa 2007)
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  • Over time, this collective learning results in practices that reflect both the pursuit of our enterprises and the attendant social relations. These practices are thus the property of a kind of community created over time by the sustained pursuit of a shared enterprise. It makes sense, therefore to call these kinds of communities communities of practice. (Wenger 1998: 45)
  • The characteristics of communities of practice According to Etienne Wenger (c 2007), three elements are crucial in distinguishing a community of practice from other groups and communities: The domain. A community of practice is is something more than a club of friends or a network of connections between people. 'It has an identity defined by a shared domain of interest. Membership therefore implies a commitment to the domain, and therefore a shared competence that distinguishes members from other people' (op. cit.). The community. 'In pursuing their interest in their domain, members engage in joint activities and discussions, help each other, and share information. They build relationships that enable them to learn from each other' (op. cit.). The practice. 'Members of a community of practice are practitioners. They develop a shared repertoire of resources: experiences, stories, tools, ways of addressing recurring problems—in short a shared practice. This takes time and sustained interaction' (op. cit.).
  • The fact that they are organizing around some particular area of knowledge and activity gives members a sense of joint enterprise and identity. For a community of practice to function it needs to generate and appropriate a shared repertoire of ideas, commitments and memories. It also needs to develop various resources such as tools, documents, routines, vocabulary and symbols that in some way carry the accumulated knowledge of the community.
  • The interactions involved, and the ability to undertake larger or more complex activities and projects though cooperation, bind people together and help to facilitate relationship and trust
  • Rather than looking to learning as the acquisition of certain forms of knowledge, Jean Lave and Etienne Wenger have tried to place it in social relationships – situations of co-participation.
  • It not so much that learners acquire structures or models to understand the world, but they participate in frameworks that that have structure. Learning involves participation in a community of practice. And that participation 'refers not just to local events of engagement in certain activities with certain people, but to a more encompassing process of being active participants in the practices of social communities and constructing identities in relation to these communities' (Wenger 1999: 4).
  • Initially people have to join communities and learn at the periphery. The things they are involved in, the tasks they do may be less key to the community than others.
  • Learning is, thus, not seen as the acquisition of knowledge by individuals so much as a process of social participation. The nature of the situation impacts significantly on the process.
  • What is more, and in contrast with learning as internalization, ‘learning as increasing participation in communities of practice concerns the whole person acting in the world’ (Lave and Wenger 1991: 49). The focus is on the ways in which learning is ‘an evolving, continuously renewed set of relations’ (ibid.: 50). In other words, this is a relational view of the person and learning (see the discussion of selfhood).
  • 'the purpose is not to learn from talk as a substitute for legitimate peripheral participation; it is to learn to talk as a key to legitimate peripheral participation'. This orientation has the definite advantage of drawing attention to the need to understand knowledge and learning in context. However, situated learning depends on two claims: It makes no sense to talk of knowledge that is decontextualized, abstract or general. New knowledge and learning are properly conceived as being located in communities of practice (Tennant 1997: 77).
  • There is a risk, as Jean Lave and Etienne Wenger acknowledge, of romanticizing communities of practice.
  • 'In their eagerness to debunk testing, formal education and formal accreditation, they do not analyse how their omission [of a range of questions and issues] affects power relations, access, public knowledge and public accountability' (Tennant 1997: 79).
  • Perhaps the most helpful of these explorations is that of Barbara Rogoff and her colleagues (2001). They examine the work of an innovative school in Salt Lake City and how teachers, students and parents were able to work together to develop an approach to schooling based around the principle that learning 'occurs through interested participation with other learners'.
  • Learning is in the relationships between people. As McDermott (in Murphy 1999:17) puts it: Learning traditionally gets measured as on the assumption that it is a possession of individuals that can be found inside their heads… [Here] learning is in the relationships between people. Learning is in the conditions that bring people together and organize a point of contact that allows for particular pieces of information to take on a relevance; without the points of contact, without the system of relevancies, there is not learning, and there is little memory. Learning does not belong to individual persons, but to the various conversations of which they are a part.
  • One of the implications for schools, as Barbara Rogoff and her colleagues suggest is that they must prioritize 'instruction that builds on children's interests in a collaborative way'. Such schools need also to be places where 'learning activities are planned by children as well as adults, and where parents and teachers not only foster children's learning but also learn from their own involvement with children' (2001: 3). Their example in this area have particular force as they are derived from actual school practice.
  • learning involves a deepening process of participation in a community of practice
  • Acknowledging that communities of practice affect performance is important in part because of their potential to overcome the inherent problems of a slow-moving traditional hierarchy in a fast-moving virtual economy. Communities also appear to be an effective way for organizations to handle unstructured problems and to share knowledge outside of the traditional structural boundaries. In addition, the community concept is acknowledged to be a means of developing and maintaining long-term organizational memory. These outcomes are an important, yet often unrecognized, supplement to the value that individual members of a community obtain in the form of enriched learning and higher motivation to apply what they learn. (Lesser and Storck 2001)
  • Educators need to reflect on their understanding of what constitutes knowledge and practice. Perhaps one of the most important things to grasp here is the extent to which education involves informed and committed action.
Barbara Lindsey

Harvard University Library : Publications : News : 9/1/09 - 0 views

  • Non-faculty researchers and students are already afforded deposit privileges, and DASH will eventually have collection spaces for each of the 10 schools at Harvard.
  • a pro-open-access policy with an "opt out" clause.
  • Each Faculty member grants to the President and Fellows of Harvard College permission to make available his or her scholarly articles and to exercise the copyright in those articles. In legal terms, the permission granted by each Faculty member is a nonexclusive, irrevocable, paid-up, worldwide license to exercise any and all rights under copyright relating to each of his or her scholarly articles, in any medium, and to authorize others to do the same, provided that the articles are not sold for a profit.
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  • Among the many features the DASH development team has added to its DSpace implementation is the ability to link directly from a faculty author's name in DASH search results to his or her entry in Profiles, a research social networking site developed by Harvard Catalyst. Profiles, which provides a comprehensive view of a researcher's publications and connections within the University research community, currently indexes faculty from the medical and public health schools; its developers hope to expand it to include the Faculty of Arts and Sciences and School of Engineering and Applied Sciences in the near future.
  • "DASH is meant to promote openness in general," stated Robert Darnton, Carl H. Pforzheimer University Professor and Director of the University Library. "It will make the current scholarship of Harvard's faculty freely available everywhere in the world, just as the digitization of the books in Harvard's library will make learning accumulated since 1638 accessible worldwide. Taken together, these and other projects represent a commitment by Harvard to share its intellectual wealth."
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