Results 51 to 60 of about 4,051 (172)

Demographic Dynamics and International Trade: Stylized Facts and Theoretical Insights

Journal of Economic Surveys, EarlyView.
ABSTRACT Demographic change within a country has economic repercussions for other countries through international transactions. Ongoing shifts in population size and age structure across countries have important implications for international trade, operating through changes in market size, consumption preferences, and labor supply.
Kumuthini Sivathas
wiley   +1 more source

O que pretende o Brasil na Guiana Essequibo?

Meridiano 47, 2017
The article discusses the hydropower project to be developed on the Mazaruni River, in Guyana, which seeks to export energy to Brazil. Mazaruni River is located in the Esequibo region, historically claimed by Venezuela.
Roberta Rodrigues Marques da Silva
doaj  

Economic Impact of Periodontitis: Global, Regional and National Estimates of Periodontal Expenditure, With Forecasts to 2050

Journal of Periodontal Research, EarlyView.
This study provides the first global, regional and national estimates of periodontal expenditure, with projections to 2050. Costs related to prevention, diagnosis, treatment, maintenance and rehabilitation are quantified across all countries worldwide.
Dian Yi Chow, Robin D. Blythe, John Rong Hao Tay, Gustavo G. Nascimento, Mario Romandini   +4 more
wiley   +1 more source

New records of Imantodes lentiferus (Cope, 1894) (Squamata: Dipsadidae) from the states of Pará and Mato Grosso, Brazil [PDF]

Check List, 2015
The arboreal snake Imantodes lentiferus (Cope, 1894) is distributed in lowland rainforests of the Amazon basin and Guiana region, reported from Colombia, Ecuador, Peru, Suriname, French Guiana, Guyana, Bolivia, Venezuela, and Brazil.
Jossehan Frota, Alexandre Felipe Missassi, Maria Cristina Santos-Costa, Ana Lucia Prudente   +3 more
doaj   +3 more sources

Comment on Ju et al. (2025): Global Declines in Mangrove Area and Carbon Stock From 1985 to 2020

Geophysical Research Letters, Volume 53, Issue 13, 16 July 2026.
Abstract This is a comment on Ju, Fu, Lyne, et al. (2025, https://doi.org/10.1029/2025gl115303), for which we believe there are significant errors in the analysis that has been undertaken. While the aim and objectives of the study are appropriate, the claimed results do not align with other published studies on mangroves and are considered unlikely to ...
Pete Bunting, Ake Rosenqvist, Lammert Hilarides, Paula Castro Brandão Vaz dos Santos   +3 more
wiley   +1 more source

Border Disputes in the Global Periphery amid Declining U.S. Hegemonic Influence

Journal of World-Systems Research
Contrary to popular expectations about a post-oil future, oil remains an important commodity in the global political economy and the world-system, in which peripheral economies rely on the export of raw material to earn foreign exchange.
Larry Liu, Leon Wilson
doaj   +1 more source

Notes on misconceptions in the application of geographical names of the tepuis on the borderlands of Guyana and Venezuela and a clarification of the location of Waukauyengtipu and Cerro Venamo

Miscellanea Geographica: Regional Studies on Development, 2022
A review of recent publications concerning the South American Pantepui biogeographic region revealed recurring mistakes in the naming of several table mountains (known locally as ‘tepui’, ‘tipu’ or ‘tepuy’) located around the Guyana-Venezuela border ...
Wrazidlo Mateusz, McPherson Stewart, Clarke H. David   +2 more
doaj   +1 more source

Trophic Redundancy and the Hidden Dietary Overlap Between Native and Invasive Stream Fishes

Ecology of Freshwater Fish, Volume 35, Issue 3, July 2026.
ABSTRACT Biological invasions introduce non‐native species into natural ecosystems, often reshaping localcommunities and altering trophic interactions. In freshwater environments, such invasions can intensify resource use and threaten native fish diversity.
Ronielson Gaia, Ana Carolina Martins‐Pereira, Paulo Ricardo S. Camargo, Virgilio Teixeira Carrijo, Rafael Cunha Bruno, Fagner de Souza, Victor A. Tagliacollo   +6 more
wiley   +1 more source

Do Coexisting Cryptic Species of Predatory Peacock Bass (Cichliformes: Cichlidae) Partition Their Niche?

Ecology of Freshwater Fish, Volume 35, Issue 3, July 2026.
ABSTRACT The mechanisms facilitating coexistence of cryptic species in sympatry have long puzzled ecologists. Cryptic species have nearly identical morphology and, therefore, would be presumed to have high niche overlap and potential for interspecific competition and competitive exclusion when resources are limited. Lowland rivers in South America have
Benton L. Fry, Kirk O. Winemiller
wiley   +1 more source

L’eau convoitée de la Guyane vénézuélienne1

Cybergeo, 2004
The Guayana region of Venezuela is controlled by the State’s planning. This territory is very important for the national economical development. The hydrological potential of the Caroni’s river is coveted for hydroelectric, industrial and urban uses that
Anne Pene-Annette
doaj   +1 more source