4 results
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2. Big BRICs, weak foundations: The beginning of public elementary education in Brazil, Russia, India, and China.
- Author
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Chaudhary, Latika, Musacchio, Aldo, Nafziger, Steven, and Se Yan
- Subjects
- *
EDUCATION statistics , *HISTORY of education , *PRIMARY education , *EDUCATION & economics , *COMPARATIVE studies , *DEVELOPMENT economics , *NINETEEN tens , *ECONOMIC history , *TWENTIETH century , *MATHEMATICAL models - Abstract
Our paper provides a comparative perspective on the development of public primary education in four of the largest developing economies circa 1910: Brazil, Russia, India and China (BRIC). These four countries encompassed more than 50% of the world's population in 1910, but remarkably few of their citizens attended any school by the early 20th century. We present new, comparable data on school inputs and outputs for BRIC drawn from contemporary surveys and government documents. Recent studies emphasize the importance of political decentralization, and relatively broad political voice for the early spread of public primary education in developed economies. We identify the former and the lack of the latter to be important in the context of BRIC, but we also outline how other factors such as factor endowments, colonialism, serfdom, and, especially, the characteristics of the political and economic elite help explain the low achievement levels of these four countries and the incredible amount of heterogeneity within each of them. [ABSTRACT FROM AUTHOR]
- Published
- 2012
- Full Text
- View/download PDF
3. Hydrogen Emanations in Intracratonic Areas: New Guide Lines for Early Exploration Basin Screening.
- Author
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Moretti, Isabelle, Brouilly, Emyrose, Loiseau, Keanu, Prinzhofer, Alain, Deville, Eric, Martinez-Frias, Jesus, and Brogi, Andrea
- Subjects
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NATURAL gas , *OCEAN bottom , *HYDROGEN , *CRATONS , *ARCHAEAN - Abstract
Offshore the emissions of dihydrogen are highlighted by the smokers along the oceanic ridges. Onshore in situ measurements in ophiolitic contexts and in old cratons have also proven the existence of numerous H2 emissive areas. When H2 emanations affect the soils, small depressions and vegetation gaps are observed. These depressions, called fairy circles, have similarities with the pockmark and vent structures recognized for long time in the sea floor when natural gas escapes but also differences. In this paper we present a statistic approach of the density, size, and shape of the fairy circles in various basins. New data from Brazil and Australia are compared to the existing database already gathered in Russia, USA, and again Brazil. The comparison suggests that Australia could be one of the most promising areas for H2 exploration, de facto a couple of wells already found H2, whereas they were drilled to look for hydrocarbons. The sum of areas from where H2 is seeping overpasses 45 km2 in Kangaroo Island as in the Yorke Peninsula. The size of the emitting structures, expressed in average diameter, varies from few meters to kilometers and the footprint expressed in % of the ground within the structures varies from 1 to 17%. However, globally the sets of fairy circles in the various basins are rather similar and one may consider that their characteristics are homogeneous and may help to characterize these H2 emitting zones. Two kinds of size repartitions are observed, one with two maxima (25 m and between 220 m ± 25%) one with a simple Gaussian shape with a single maximum around 175 m ± 20%. Various geomorphological characteristics allow us to differentiate depressions of the ground due to gas emissions from karstic dolines. The more relevant ones are their slope and the ratio diameter vs. depth. At the opposite of the pockmark structures observed on the seafloor for which exclusion zones have been described, the H2 emitting structures may intersect and they often growth by coalescence. These H2 emitting structures are always observed, up to now, above Archean or Neoproterozoic cratons; it suggests that anoxia at the time the sedimentation and iron content play a key role in the H2 sourcing. [ABSTRACT FROM AUTHOR]
- Published
- 2021
- Full Text
- View/download PDF
4. The BRICs Countries (Brazil, Russia, India, and China) as Analytical Category: Mirage or Insight?
- Author
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Armijo, Leslie Elliott
- Subjects
- *
INTERNATIONAL relations , *ECONOMICS ,INDUSTRIES & economics - Abstract
American hegemony has passed its peak. The twenty-first century will see a more multi-polar international system. Yet Western European countries may not be the United States' main foils in decades to come. Four new poles of the international system are now widely known in the business and financial press as the "BRICs economies" (Brazil, Russia, India, and China). Does the concept of "the BRICs" have meaning within a rigorous political science framing? From the perspective of an economic liberal employing neoclassical assumptions to understand the world economy, the category's justification is surprisingly weak. In contrast, a political or economic realist's framing instructs us to focus on states that are increasing their relative material capabilitiesâ”as each of the four is. Finally, within a liberal institutionalist's mental model, the BRICs countries are a compelling set, yet one with a deep cleavage between two sub-groups: large emerging powers likely to remain authoritarian or revert to that state, and those that are securely democratic. ..PAT.-Unpublished Manuscript [ABSTRACT FROM AUTHOR]
- Published
- 2008
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