984 resultados para central african republic
Resumo:
In this study we evaluate innovative performance of the economies of Central and Eastern Europe (CEE) based on the available statistics of innovation processes. We compare such country-level indicators as educational levels, investments in R&D, FDI, trade and licensing flows, patents and scientific articles, and find that the most developed CEE economies are also the most innovative. At the same time, as supported by the results of the interviews in Czech Republic, one of the top performers in the CEE region, its economy is facing a number of challenges that are similar to other middle-income countries around the world. We suggest addressing these challenges from the prospective of the Middle Income Trap, when a middle-income economy to sustain growth must learn to compete with advanced economies in high-skill innovation. Development of effective innovation policy should be a priority for the CEE countries to escape from the middle income trap.
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New 40Ar/39Ar ages for alunite from the Moore and Monte Negro deposits in the Pueblo Viejo district, as well as from a newly discovered alunite-bearing zone on Loma la Cuaba west of the known deposits, are reported here. The ages range from about 80 to 40 Ma, with closely adjacent samples exhibiting very different ages. Interpretation of these results in the context of estimated closure temperatures for alunite and the geologic and tectonic evolution of Hispaniola does not lead to a simple conclusion about the age of mineralization. The simplest interpretation, that mineralization was caused by a buried Late Cretaceous (~80 Ma) intrusion, is complicated by lack of intrusions of this age in the area and absence of alteration in overlying limestone. The alternative interpretation, that mineralization was formed during Early Cretaceous (~110 Ma) magmatism and that the 40Ar/39Ar ages were completely reset by Late Cretaceous thrusting, is complicated by a lack of information on the timing and thermal effects of thrusting in central Hispaniola. Alunite studies have yielded similar unclear results in other pre-Cenozoic ore systems, notably those of the Lachlan fold belt in Australia
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The origin of the Numidian Formation (latest Oligocene to middle Miocene), characterized by ultra-mature quartzose arenites with abundant well-rounded frosted quartz grains, remains controversial. This formation, sedimented in the external domain of the Maghrebian Flysch Basin, displays three characteristic stratigraphic members with marked longitudinal (proximal–distal) and transverse (along-chain) variations with palaeogeographical importance. The origin of the Numidian supply is related to the outward tectogenetic propagation when a forebulge evolved in the African foreland, leading to the erosion of African cratonic areas rich in quartzose arenites (Nubian Sandstone-like). The ages of the Numidian Formation checked by Betic, Maghrebian and Southern Apennine data suggest a timing for the accretionary orogenic wedge, earlier in the Betic-Rifian Arc (after middle Burdigalian), later in the Algerian-Tunisian Tell (after late Burdigalian) and afterwards in Sicily and the Southern Apennines (after Langhian). A geodynamic evolutionary model for the central-western Mediterranean is proposed.
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This layer is a georeferenced raster image of the historic paper map entitled: Routes des postes et des voitures pour les marchandises et pour les voyages par l'Empire dans les principaux Etats de l'Europe, T. Stemmers, sculp. It was published by chez Reinier & Iosue Ottens, between 1730 and 1739. Scale [ca. 1:2,500,000]. Covers the Central Europe region. Map in French. The image inside the map neatline is georeferenced to the surface of the earth and fit to the Europe Lambert Conformal Conic coordinate system. All map collar and inset information is also available as part of the raster image, including any inset maps, profiles, statistical tables, directories, text, illustrations, index maps, legends, or other information associated with the principal map. This map shows features such as drainage, cities and other human settlements, roads, territorial and administrative boundaries, shoreline features, and more. Relief shown pictorially. Depths shown by shading.This layer is part of a selection of digitally scanned and georeferenced historic maps from the Harvard Map Collection. These maps typically portray both natural and manmade features. The selection represents a range of originators, ground condition dates, scales, and map purposes.
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This layer is a georeferenced raster image of the historic paper map entitled: Deutschland und der gröste Theil der umliegenden Staaten : oder Mittel-Europa in 35 Blättern : nach astronomischen Ortsbestimmungen und den besten Special-Karten, mit Rücksicht auf die neuesten Grenz-Bestimmungen entworfen, zufolge der Wiener Congress-Akte, des Pariser Friedens vom 21ten Nov. 1815, und der neuesten Austauschungen 1816, von H.H. Gotthold ; geschrieben und gestochen von H. Kliewer ; sämtliche Gebürge im Atlas sind gezeichnet und gestochen von Paulus Schmidt, so wie auch die Sectionen 3,11,16,18,19,21,25,26,31 von demselben gestochen worden. It was published by Simon Schropp & Co., ca. 1816. Scale [ca. 1:1,100,000]. Covers the Central Europe region. Map in German. The image inside the map neatline is georeferenced to the surface of the earth and fit to the Europe Lambert Conformal Conic coordinate system. All map collar and inset information is also available as part of the raster image, including any inset maps, profiles, statistical tables, directories, text, illustrations, index maps, legends, or other information associated with the principal map. This map shows features such as drainage, cities and other human settlements, roads, ground cover, territorial boundaries, shoreline features, and more. Relief shown by hachures. Depths shown by shading. Includes also inset index map.This layer is part of a selection of digitally scanned and georeferenced historic maps from the Harvard Map Collection. These maps typically portray both natural and manmade features. The selection represents a range of originators, ground condition dates, scales, and map purposes.
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This layer is a georeferenced raster image of the historic paper map entitled: Neueste Eisenbahn-Karte von Central-Europa : mit genauer Angabe aller Stationen und den influirenden Post-Verbindungen, nach dem neuesten und zuverlässigsten Quellen bearbeitet von U. Hendschel. It was published by Carl Jügel's Verlag in 1859. Scale 1:1,900,000. Covers the Central Europe region. Map in German.The image inside the map neatline is georeferenced to the surface of the earth and fit to the Europe Lambert Conformal Conic coordinate system. All map collar and inset information is also available as part of the raster image, including any inset maps, profiles, statistical tables, directories, text, illustrations, index maps, legends, or other information associated with the principal map. This map shows features such as drainage, cities and other human settlements, roads, railroads, territorial and administrative boundaries, shoreline features, and more. Relief shown by hachures. Includes also scale comparison chart and index of political units.This layer is part of a selection of digitally scanned and georeferenced historic maps from the Harvard Map Collection. These maps typically portray both natural and manmade features. The selection represents a range of originators, ground condition dates, scales, and map purposes.
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This layer is a georeferenced raster image of the historic paper map entitled: Neueste Eisenbahn-Karte von Central-Europa : mit genauer Angabe aller Stationen und den influirenden Post-Verbindungen, nach dem neuesten und zuverlässigsten Quellen bearbeitet von U. Hendschel. It was published by Carl Jügel's Verlag in 1872. Scale 1:1,900,000. Covers the Central Europe region. Map in German. The image inside the map neatline is georeferenced to the surface of the earth and fit to the Europe Lambert Conformal Conic coordinate system. All map collar and inset information is also available as part of the raster image, including any inset maps, profiles, statistical tables, directories, text, illustrations, index maps, legends, or other information associated with the principal map. This map shows features such as drainage, cities and other human settlements, roads, railroads, territorial and administrative boundaries, shoreline features, and more. Relief shown by hachures. Includes also scale comparison chart and index of political units.This layer is part of a selection of digitally scanned and georeferenced historic maps from the Harvard Map Collection. These maps typically portray both natural and manmade features. The selection represents a range of originators, ground condition dates, scales, and map purposes.
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This layer is a georeferenced raster image of the historic paper map entitled: L'Empire d'Allemagne, divisé en tous ses estats : a l'usage de Monseigneur Le Duc De Bourgogne = Nova Imperii Germanici descriptio, in omnes suos circulos, electoratus, &c divisi : ad usum serenissimi Burgundiae Ducis, par ... H. Iaillot. It was published by H. Jaillot in 1695. Scale [ca. 1:2,400,000]. Covers the Central Europe region. Map in French and Latin. The image inside the map neatline is georeferenced to the surface of the earth and fit to the Europe Lambert Conformal Conic coordinate system. All map collar and inset information is also available as part of the raster image, including any inset maps, profiles, statistical tables, directories, text, illustrations, index maps, legends, or other information associated with the principal map. This map shows features such as drainage, cities and other human settlements, roads, territorial and administrative boundaries, shoreline features, and more. Relief shown pictorially.This layer is part of a selection of digitally scanned and georeferenced historic maps from the Harvard Map Collection. These maps typically portray both natural and manmade features. The selection represents a range of originators, ground condition dates, scales, and map purposes.
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This layer is a georeferenced raster image of the historic paper map entitled: Tabula novissima totius Germaniae praecipue ex designatione viri celeberrimi D[om]ini Johannis Caspari Eisenschmidii. It was published by in lucem edita a Johanne Baptista Homanno, between 1720 and 1729. Scale [ca. 1:1,270,000]. Covers the Central Europe region. Map in Latin. The image inside the map neatline is georeferenced to the surface of the earth and fit to the Europe Lambert Conformal Conic coordinate system. All map collar and inset information is also available as part of the raster image, including any inset maps, profiles, statistical tables, directories, text, illustrations, index maps, legends, or other information associated with the principal map. This map shows features such as drainage, cities and other human settlements, roads, territorial and administrative boundaries, shoreline features, and more. Relief shown pictorially.This layer is part of a selection of digitally scanned and georeferenced historic maps from the Harvard Map Collection. These maps typically portray both natural and manmade features. The selection represents a range of originators, ground condition dates, scales, and map purposes.
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This layer is a georeferenced raster image of the historic paper map entitled: Carte générale d'Allemagne comprenant l'empire d'Autriche, la Confédération du Rhin, le Dannemarck, la Prusse et la Pologne, une partie de la Suède, des empires de France, de Russie et de Turquie : avec l'indication des principales routes de ces états et du théâtre de la guerre, gravée par E. Collin. It was published by Direction générale de l'imprimerie in 1813. Scale [ca. 1:2,350,000]. Covers primarily Central Europe and adjacent portions of Europe. Map in French. The image inside the map neatline is georeferenced to the surface of the earth and fit to the Europe Lambert Conformal Conic coordinate system. All map collar and inset information is also available as part of the raster image, including any inset maps, profiles, statistical tables, directories, text, illustrations, index maps, legends, or other information associated with the principal map. This map shows features such as drainage, cities and other human settlements, roads, territorial boundaries, shoreline features, and more. Relief shown by hachures. Includes inset of Saint Petersburg.This layer is part of a selection of digitally scanned and georeferenced historic maps from the Harvard Map Collection. These maps typically portray both natural and manmade features. The selection represents a range of originators, ground condition dates, scales, and map purposes.
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This layer is a georeferenced raster image of the historic paper map entitled: Neue Karte von Deutschland, Holland und der Schweiz, welche die merkwürdigsten Natur u. Kunst-Producte, den Handel, nebst der Volksmenge u. den Flächen Inhalt dieser Länder enthalt, entworfen und gezeichnet von J.E. Langen, Geom. et Geogr. It was published by J.E. Langen in 1787. Scale [ca. 1:2,140,000]. Covers the Central Europe region. Map in German. The image inside the map neatline is georeferenced to the surface of the earth and fit to the Europe Lambert Conformal Conic coordinate system. All map collar and inset information is also available as part of the raster image, including any inset maps, profiles, statistical tables, directories, text, illustrations, index maps, legends, or other information associated with the principal map. This map shows features such as drainage, cities and other human settlements, roads, territorial and administrative boundaries, shoreline features, and more. Relief shown pictorially. Includes also text.This layer is part of a selection of digitally scanned and georeferenced historic maps from the Harvard Map Collection. These maps typically portray both natural and manmade features. The selection represents a range of originators, ground condition dates, scales, and map purposes.
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This layer is a georeferenced raster image of the historic paper map entitled: Neue und vollständige Postkarte durch ganz Deutschland und durch die angränzende Theile der benachbarten Länder = Nouvelle carte geographique des postes d'Allemagne et des provinces limitrophes, zusammen getragen und ausgefertiget von Franz Ioseph Heger. It was published by im Verlag bey denen Homaennischen Erben in 1764. Scale [ca. 1:1,500,000]. Covers the Central Europe region. Map in German. The image inside the map neatline is georeferenced to the surface of the earth and fit to the Europe Lambert Conformal Conic coordinate system. All map collar and inset information is also available as part of the raster image, including any inset maps, profiles, statistical tables, directories, text, illustrations, index maps, legends, or other information associated with the principal map. This map shows features such as drainage, cities and other human settlements, postal roads with distances between towns, territorial and administrative boundaries, shoreline features, and more. Relief shown pictorially.This layer is part of a selection of digitally scanned and georeferenced historic maps from the Harvard Map Collection. These maps typically portray both natural and manmade features. The selection represents a range of originators, ground condition dates, scales, and map purposes.
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This layer is a georeferenced raster image of the historic paper map entitled: A new map of the post roads of Germany and Hungary with the adjacent kingdoms, republics and states : from the large map published at Vienna, with additions and improvements by J. Enouy, geogr. It was published by Laurie & Whittle, 53 Fleet Street in 1802. Scale [ca. 1:2,500,000]. Covers the Central and Eastern Europe regions. The image inside the map neatline is georeferenced to the surface of the earth and fit to the Europe Lambert Conformal Conic coordinate system. All map collar and inset information is also available as part of the raster image, including any inset maps, profiles, statistical tables, directories, text, illustrations, index maps, legends, or other information associated with the principal map. This map shows features such as drainage, cities and other human settlements, postal roads, territorial and administrative boundaries, shoreline features, and more. Relief shown pictorially.This layer is part of a selection of digitally scanned and georeferenced historic maps from the Harvard Map Collection. These maps typically portray both natural and manmade features. The selection represents a range of originators, ground condition dates, scales, and map purposes.
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This layer is a georeferenced raster image of the historic paper map entitled: Post- und Reise-Karte von Deutschland und den anliegenden Ländern : bis London, Havre de Grace, Tours, Lyon, Genua, Bologna, Pesth, Warschau, Königsberg u. jenseits Kopenhagen, nebst den Haupt-Routen durch das übrige Europa, herausgegeben, und nach den Postcursen aus meist officiellen Quellen bearbeitet von F. M. Diez ; geographisch entworfen von Ad. St. It was published by Justus Perthes in 1831. Scale [ca. 1:1,500,000]. Covers portion of Central and Western Europe. Map in German. The image inside the map neatline is georeferenced to the surface of the earth and fit to the Europe Lambert Conformal Conic coordinate system. All map collar and inset information is also available as part of the raster image, including any inset maps, profiles, statistical tables, directories, text, illustrations, index maps, legends, or other information associated with the principal map. This map shows features such as drainage, cities and other human settlements, roads, territorial boundaries, shoreline features, and more. Relief shown by hachures. Includes insets: "Haupt Routen durch Frank Reich, Spanien, Portugal u. Italien" and two showing the main roads through Poland, Latvia and Estonia.This layer is part of a selection of digitally scanned and georeferenced historic maps from the Harvard Map Collection. These maps typically portray both natural and manmade features. The selection represents a range of originators, ground condition dates, scales, and map purposes.
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This layer is a georeferenced raster image of the historic paper map entitled: Karte von Deutschland : in IV Blättern entworfen im Jahre 1805, und nach den, durch die Bundesacte der Reinschen Conföderation, datirt Paris vom 12ten Julius 1806, ingleichen nach den, durch die verschiedenen Tausch- und Pacifications Verträge ; besonders aber nach den, durch den Frieden zu Tilsit am 9ten July 1807 bestimmten Besitzungen, berichtiget, zu Anfange des Jahres 1808, von D. F. Sotzman. It was published by A.G. Schneider und Weigels in 1808. Scale [ca 1:875,000]. This layer is image 1 of 4 total images of the four sheet source map, representing the northwest portion of the map. Covers primarily Central Europe and adjacent portions of Europe. Map in German.The image inside the map neatline is georeferenced to the surface of the earth and fit to the Europe Lambert Conformal Conic coordinate system. All map collar and inset information is also available as part of the raster image, including any inset maps, profiles, statistical tables, directories, text, illustrations, index maps, legends, or other information associated with the principal map. This map shows features such as drainage, cities and other human settlements, roads, territorial and administrative boundaries, shoreline features, and more. Relief shown by hachures.This layer is part of a selection of digitally scanned and georeferenced historic maps from the Harvard Map Collection. These maps typically portray both natural and manmade features. The selection represents a range of originators, ground condition dates, scales, and map purposes.