Results 81 to 90 of about 69,649 (332)

Cardiac Evaluation in the Acute Phase of Chagas' Disease with Post-Treatment Evolution in Patients Attended in the State of Amazonas, Brazil

open access: yesArquivos Brasileiros de Cardiologia, 2019
Background In the past two decades, a new epidemiological profile of Chagas' disease (CD) has been registered in the Brazilian Amazon where oral transmission has been indicated as responsible for the increase of acute cases.
J. Ortiz   +9 more
semanticscholar   +1 more source

Three‐Year Propagation Experiment at Ku‐, Ka‐, and Q‐Band in French West Indies

open access: yesInternational Journal of Satellite Communications and Networking, EarlyView.
ABSTRACT From January 2021 to December 2023, the Office National d'Etudes et de Recherches Aérospatiales (ONERA) and the Centre National d'Etudes Spatiales (CNES) conducted a three‐year Earth‐space propagation measurement campaign in Guadeloupe. The experiment used beacon receivers deployed in Pointe‐à‐Pitre airport to record signals at 11.2, 19.7, and
Jean‐Pascal Monvoisin   +3 more
wiley   +1 more source

Tropical Forests and Sustainability: The Role of Multilateral Financing in Latin America

open access: yesSustainable Development, EarlyView.
ABSTRACT The challenge of slowing deforestation and degradation in the tropical regions of Latin America requires financing mechanisms (public and private) that can enable actions to preserve and sustainably manage forest integrity. This paper begins by examining the strategy implemented by the World Bank to protect forest cover in tropical countries ...
Ángela Andrea Caviedes Conde   +2 more
wiley   +1 more source

Illegal Gold Mining in the Brazilian Amazon: Environmental Degradation in Yanomami Indigenous Lands, and Regulatory Failures

open access: yesSustainable Development, EarlyView.
ABSTRACT Illegal gold mining has emerged as a major sustainability threat in the Amazon, eroding Indigenous rights, forest integrity, and climate mitigation efforts. This study examines how international market incentives relate to the expansion of illegal mining and associated deforestation within the Yanomami Indigenous Territory (YIT) from 2008 to ...
Shirléia Lago Santos   +2 more
wiley   +1 more source

O plano de defesa da borracha: entre o desenvolvimentismo e a negligência política ao Norte do Brasil, 1900-1915

open access: yesAmérica Latina en la Historia Económica, 2013
O presente artigo volta-se ao estudo do Plano de Defesa da Borracha instituído pelo governo federal em 1912, como plano de desenvolvimento regional para recuperação econômica da Amazônia.
Orange Matos Feitosa   +1 more
doaj   +1 more source

Amazonas colombiano

open access: yesEntretextos, 2020
En este número de Entretextos publicamos ahora la serie fotográfica Amazonas colombiano. Con estas imágenes, Vanessa Quintero no sólo nos lleva a contemplar el esplendor del río y la selva en constante transformación, sino que nos convoca a reflexionar sobre su riqueza natural frente a la escasez material de sus habitantes; esencialmente, nos exige ...
openaire   +2 more sources

High risk human papillomavirus prevalence and genotype distribution among women infected with HIV in Manaus, Amazonas

open access: yesVirology Journal, 2018
Human immunodeficiency virus (HIV)-positive women have a high prevalence of human papillomavirus (HPV), and are infected with a broader range of HPV types than HIV-negative women.
M. Teixeira   +5 more
semanticscholar   +1 more source

Repeated trends in altitudinal gradients of diversity: How habitat filtering and biotic interactions structure ecological communities

open access: yesJournal of Animal Ecology, EarlyView.
This study reveals that tropical butterfly communities show remarkably consistent elevational patterns of diversity and phylogenetic structure across regions with contrasting evolutionary histories, demonstrating how regional species pools and local ecological factors jointly shape biodiversity along altitudinal gradients.
Raphaël Fougeray   +10 more
wiley   +1 more source

Cartografía Social Yanomami en la Sierra de Parima, Alto Orinoco, Amazonas, República Bolivariana de Venezuela

open access: yesNovos Cadernos NAEA
A fronteira entre a Venezuela e o Brasil no território Yanomami faz parte de um universo hipercomplexo de relações e conflitos entre a sociedade global e as comunidades tradicionais.
Carlos Botto   +3 more
doaj   +1 more source

Cyclocephala amazona

open access: yes, 2019
Cyclocephala amazona (Linnaeus, 1767) Scarabaeus amazonus Linnaeus 1767: 551 Note. Two presently recognized subspecies of Cyclocephala amazona have been described, one of which occurs in the research area. The other one is C. amazona boliviensis Höhne, 1923 (recorded from Brazil, Bolivia) Subspecies Cyclocephala amazona amazona (Linnaeus, 1767 ...
Hielkema, Auke J., Hielkema, Meindert A.
openaire   +1 more source

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