Results 61 to 70 of about 11,857 (232)

Mercosur: past, present, and future [PDF]

open access: yes
In March 2003, the Southern Common Market (Mercosur) celebrated its twelfth anniversary. In twelve years, the bloc went from a substantially restricted trade structure to a practically free-trade area, with additional efforts in establishing a customs ...
Paulo Paiva, Ricardo Gazel
core  

Evidence for Lithospheric Mantle Uniformity Beneath Cratons

open access: yesJournal of Geophysical Research: Solid Earth, Volume 130, Issue 4, April 2025.
Abstract Cratons are characterized by thick mantle roots that have experienced high degrees of partial melting, resulting in a cold, strong, and buoyant mantle compared to its oceanic counterpart. The extent of chemical variability within cratonic roots, the role of cratons in insulating the mantle over time and subsequent triggering of continental ...
Federico D. Munch   +2 more
wiley   +1 more source

Le peuplement de l'Afrique centrale et orientale. Logiques héritées et développement urbain actuel

open access: yesEspace populations sociétés, 2019
Our initial objective is to evaluate the state of urbanization in Central and Eastern Africa and its evolution since the 1960s, by geographically locating the multiplication of the number of agglomerations of more than 10,000 inhabitants and their ...
Hervé Gazel
doaj   +1 more source

Tenth District economic developments [PDF]

open access: yes
The Tenth District economy posted lower employment growth in 1997, marking the first time since 1988 that the district underperformed the nation. District agriculture posted solid gains in 1997, with big harvests and major improvements in the cattle ...
Ricardo C. Gazel
core  

La sémiologie graphique sort du cadre: Les C2i comme champs d’expérimentation et de diffusion [PDF]

open access: yes, 2014
International audienceLa sémiologie graphique participe de notre pratique de professeur dans des enseignements traitant des méthodes et outils informatiques en géographie-aménagement à l’université Lyon 3 Jean Moulin : cours d’initiation aux statistiques
Gazel, Herve
core   +1 more source

The Supply Constraint Problem in Economic Impact Analysis: An Arts/Sports Disparity [PDF]

open access: yes, 2006
The most fundamental analytical errors that lead to overstated projected regional economic impacts (ex ante) are demand based: (1) failure to subtract local sources of spending and nonlocal uses of spending from the budgets of subject organizations or ...
Bruce A. Seaman
core   +1 more source

Why Are Plume Excess Temperatures Much Less Than the Temperature Drop Across the Lowermost‐Mantle Thermal Boundary Layer?

open access: yesJournal of Geophysical Research: Solid Earth, Volume 130, Issue 4, April 2025.
Abstract While temperature drop across the mantle's basal thermal boundary layer (TBL) is likely > ${ >} $1,000 K, the temperature anomaly of plumes believed to rise from that TBL is only up to a few hundred Kelvins. Reasons for that discrepancy are still poorly understood and a number of causes have been proposed.
Bernhard Steinberger   +3 more
wiley   +1 more source

Le graphe et la graphie de la Terre. Un exercice formel pour commémorer le bicentenaire du Voyage aux Amériques équinoxales

open access: yesCybergeo, 1999
This paper examines the migration of geographical knowledges from paper to computer. It is possible to conceive this migration as an hypertextualization. The explanation of the links between graph and geographical writing is necessary. The example of the
Hervé Gazel
doaj   +1 more source

Foraging habitat use by sympatric Cuvier’s Gazelle, Dama Gazelle, and Dorcas Gazelle on a private reserve in Morocco

open access: yesJournal of Mammalogy
Abstract Habitat use influences the survival and fitness of animals. Habitat quality and food availability in spring and summer are crucial determinants of ungulate population dynamics, peaking in spring and drastically decreasing in summer in Mediterranean region. Here, over a 2-year period we examine foraging habitat use in both spring
Amalia Segura, Eulalia Moreno
openaire   +2 more sources

NAFTA and the changing pattern of state exports [PDF]

open access: yes
The trade liberalization associated with NAFTA has affected the pattern of state exports by altering the origin as well as the destination of merchandise exports.
Cletus C. Coughlin, Howard J. Wall
core  

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