I'm a peripatetic wanderer through the awesome edifice of human knowledge, intent on self-development, reflection, and the synthesis of disparate ideas. I have always been, and will remain, a student. My interests are truly marvelous but this text box is too small to contain them.

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Member since Aug 23, 2006, follows 29 people, 38 public groups, 14088 public bookmarks (14210 total).

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  • The Real of the Virtual: Critical Reflections on Web 2.0 | Boikos | tripleC: Communication, Capitalism & Critique. Open Access Journal for a Global Sustainable Information Society about 19 hours ago
  • Tyler Cowen | Thomas Piketty's Vision of a Global Wealth Tax | Foreign Affairs about 19 hours ago
    • That fact complicates Piketty’s argument. Piketty estimates that the general annual rate of return on capital has averaged between four and five percent (pretax) and is unlikely to deviate too far from this range. But in too many parts of his argument, he seems to assume that investors can reap such returns automatically, with the mere passage of time, rather than as the result of strategic risk taking. A more accurate picture of the rate of return would incorporate risk and take into account the fact that although the stock of capital typically grows each year, sudden reversals and retrenchments are inevitable. Piketty repeatedly serves up the appropriate qualifications and caveats about his model, but his analysis and policy recommendations nevertheless reflect a notion of capital as a growing, homogeneous blob which, at least under peaceful conditions, ends up overshadowing other economic variables.


      Furthermore, even if one overlooks Piketty’s hazy definition of the rate of return, it is difficult to share his confidence that the rate, however one defines it, is likely to be higher than the growth rate of the economy. Normally, economists think of the rate of return on capital as diminishing as investors accumulate more capital, since the most profitable investment opportunities are taken first. But in Piketty’s model, lucrative overseas investments and the growing financial sophistication of the superwealthy keep capital returns permanently high. The more prosaic reality is that most capital stays in its home country and also has a hard time beating randomly selected stocks. For those reasons, the future of capital income looks far less glamorous than Piketty argues.

    • Piketty’s focus on the capital-to-income ratio is novel and worthwhile. But his book does not convincingly establish that the ratio is important or revealing enough to serve as the key to understanding significant social change. If wealth keeps on rising relative to income, but wages also go up, most people will be happy. Of course, in the past few decades, median wages have been stagnant in many developed countries, including the United States. But the real issue, then, is wages -- not wealth. A high capital-to-income ratio might be one factor depressing wages, but it hardly seems central -- and Piketty does not claim, much less show, that it is.
  • U.S. is a world leader in class conflict over government spending about 21 hours ago
    • What is much more remarkable about the pattern of opinion in the United States is the extent to which it was polarized along class lines. In the other affluent democracies, net support for spending cuts was virtually constant across income groups, from the very poor to the very affluent. In the United States , however, poor people were only slightly more likely to favor than to oppose spending cuts, while affluent people were vastly more likely to favor spending cuts. No other rich country even came close to matching this level of class polarization in budget-cutting preferences. Among the poorer countries included in the ISSP survey, only one displayed a larger division of opinion between rich and poor — South Africa.
    • Some readers of Martin Gilens and Benjamin Page’s bombshell research on economic elite domination have questioned whether the outsized political influence of affluent people really matters, since they agree with ordinary Americans on most political issues anyway. Most issues, but by no means all—as Gilens’s previous work handsomely demonstrates. The remarkable enthusiasm of affluent Americans for government budget-cutting is a prime example of what is at stake in economic elite domination of the U.S. political system.
  • Crowdsourcing/Human Computation Games List about 21 hours ago
  • Next Steps for Citizen Science about 21 hours ago
    • Social and Environmental Impact


      Although citizen science projects should have authentic scientific objectives, they also can realize significant social outcomes.  The sea turtle monitoring network Grupo Tortuguero supports a body of hypothesis-driven scientific work, including investigations  into turtle diet, distribution, and disease, at sites throughout northwestern Mexico (9). This collaboration between biologists, agencies, and communities has helped to establish marine protected areas and sustainable  fisheries practices that are sensitive to the well-being of both turtle populations and local livelihoods. The West Oakland  Environmental Indicators Project empowered individuals living in a very poor neighborhood to collect air-quality and health  data documenting the degree to which air pollution affects local residents (10). And in the Congo, scientists from University College London are leveraging the data-capture capabilities of smartphones  to work with nonliterate individuals to document environmental impacts, such as poaching and illegal logging (2) (see the photo). 


      These examples demonstrate how citizen science can provide opportunities for people of many backgrounds and cultures to use  science to address community-driven questions. Creating projects to achieve social and scientific objectives requires deliberate  design that is attentive to diverse interests, including why and how members of the public would even want to be involved  (11). Investments in infrastructure and partnerships that help to create more local projects with both science and social components  could leverage under-appreciated knowledge sources, including local and traditional knowledge. Such efforts could also inform  the questions and issues pursued through citizen science, leading to new research and a stronger science-society relationship.

  • Natural History's Place in Science and Society about 21 hours ago
    • The rapid spread of consumer technologies—most notably, the rise of smartphones—is expanding opportunities for participation  in biodiversity science, allowing broad partnerships through social networks, collective species discovery, and the real-time  mapping of species and communities (see box 5 for examples). The vitality of natural history will depend on its capacity to  build broad collaborative efforts using technological advances to lower the barriers associated with collecting, analyzing,  and sharing natural history knowledge. The rapid growth in citizen science has the potential to yield a large increase in  the number of people helping to build natural history knowledge, and this ethos of collaboration and public participation  needs to permeate natural history research, outreach, and education. An outstanding example of the potential for this approach  is provided by eBird, a Web-based program developed by the Cornell Lab of Ornithology that has capitalized on the widespread  interest in and appeal of birds. The program has witnessed a rapid, global increase in data contributors and users, which  has enabled both researchers and the general public to benefit in diverse ways from technologies for the collection, organization,  and dissemination of vast numbers of bird observations. Successful programs on other taxa, such as eButterfly and the Lost  Ladybug Project, illustrate that birds are not unique in their ability to engage the public in documenting and compiling natural  history data.
  • Taylor & Francis Online :: Opening the Black Box: The Social Outcomes of Scientific Research - Social Epistemology - about 21 hours ago
  • No, inequality doesn't help the economy grow - Vox on 2014-04-21
  • Data Workflows for Machine Learning on 2014-04-20
  • Ignore age—define generations by the tech they use - Vox on 2014-04-20

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  • Art.In.General

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    Welcome! This is a group for anyone interested in art & its related resources. Members are able to share, review, and comment on bookmarks. To keep track on the latest news and bookmarks, you can subscribe to the feed (http://groups.diigo.com/group/aigeneral/rss) or the email alert (Homepage/Alert settings). Please note that this group is NOT for promoting blogs, websites or product for personal interests.

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    This space is make for discution about of the collective intellegence and others topic around the e-learning, pedagogia innovation,and web 2.0.

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    This is for Economics students.

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