Results 11 to 20 of about 76,088 (161)

La “ciudad ennegrecida”: esclavos en el Belém do Grão-Pará colonial [PDF]

open access: yesRevista de Estudios Brasileños, 2020
La ciudad de Belém, ubicada al norte de la América portuguesa, tuvo como principales habitantes a los africanos y sus descendientes, durante el período comprendido entre 1755 y 1800.
Marley Antonia SILVA DA SILVA   +1 more
doaj   +3 more sources

Key drivers of at-vessel mortality in demersal sharks. [PDF]

open access: yesConserv Biol
Abstract Chondrichthyans are highly vulnerable to fisheries overexploitation, and postcapture mortality poses a significant threat to most species. Global bycatch mitigation guidelines recommend adopting hierarchical decision‐making approaches tailored to species‐specific vulnerabilities and socioeconomic and regulatory contexts.
Ruiz-García D   +3 more
europepmc   +2 more sources

An assessment of methods to combine evolutionary history and conservation: A case study in the Brazilian campo rupestre. [PDF]

open access: yesAppl Plant Sci
Abstract Premise Conservation policies typically focus on biodiversity hotspots. An alternative approach involves analyzing the evolutionary history of lineages in geographic areas along with their threat levels to guide conservation efforts. Mountains exhibit high levels of plant species richness and micro‐endemism, and biogeographic studies commonly ...
Pizzardo RC   +7 more
europepmc   +2 more sources

A língua geral amazônica no Grão-Pará cabano: revisitando conceitos [PDF]

open access: yes, 2022
Trata-se de um estudo que problematiza a utilização do termo “língua geral” referindo-se à amplitude de uso do patrimônio linguístico mobilizado pelos cabanos à época da Cabanagem.
Lavareda, Welton Diego Carmim
core   +2 more sources

Origens do Estado do Grão-Pará e Maranhão e a política pombalina: discursos e relações de poder [PDF]

open access: yes, 2021
Trata das origens do Grão-Pará e Maranhão, com ênfase no período pombalino. Busca compreender como se deu a organização territorial, econômica e política para a origem deste Estado, e qual a relação com os ideais pombalinos.
Miranda, Joaquina Ianca   +1 more
core   +2 more sources

Dona Maria Gil e família: possibilidades e imigração entre Açores e o Grão-Pará do século XVIII [PDF]

open access: yesAcervo, 2017
O artigo procura analisar o processo migratório e a composição familiar de um grupo de imigrantes açorianos que desembarcou em Belém do Grão-Pará no ano de 1752.
Antonio Otaviano Vieira Junior
doaj   +1 more source

Taste for pollen comes in different shapes: Consumption by tadpoles from three divergent ecomorphotypes

open access: yesJournal of Zoology, Volume 320, Issue 1, Page 42-52, May 2023., 2023
We studied pollen consumption and breakage of pollen grains by tadpoles of three different ecomorphotypes likely to influence ease of access to different feeding microhabitats. We found tadpoles adapted to feed on the water surface (where pollen is first available to aquatic food webs) to eat more pollen and break relatively more grains, which is ...
J. S. Kloh   +3 more
wiley   +1 more source

Intelligent Management of Hydroponic Systems Based on IoT for Agrifood Processes

open access: yesJournal of Sensors, Volume 2022, Issue 1, 2022., 2022
There are a wide variety of new microprocessors that are easy to program and configure to perform complex tasks, and with the right features, sensors, and additional mechanisms, we can prepare them to monitor and take care of the crops with automated processes.
D. Hostalrich   +4 more
wiley   +1 more source

Molecular systematics, species limits, and diversification of the genus Dendrocolaptes (Aves: Furnariidae): Insights on biotic exchanges between dry and humid forest types in the Neotropics

open access: yesJournal of Zoological Systematics and Evolutionary Research, Volume 59, Issue 1, Page 277-293, January 2021., 2021
We analyzed sequences from all species and most subspecies of Dendrocolaptes. We recovered the monophyly of Dendrocolaptes and that of most Dendrocolaptes species, except D. picumnus, which was paraphyletic to D. hoffmannsi. A coalescent‐based test supported 15 different evolutionary distinct lineages in Dendrocolaptes, indicating that the genus ...
Antonita Santana   +4 more
wiley   +1 more source

Crystallization Pathways of Iron Formations: Insights From Magnetic Properties and High-Resolution Imaging of the 2.7 Ga Carajás Formation, Brazil. [PDF]

open access: yesGeobiology
ABSTRACT Banded iron formations (BIFs) are chemical sedimentary rocks commonly utilized for exploring the chemistry and redox state of the Precambrian ocean. Despite their significance, many aspects regarding the crystallization pathways of iron oxides in BIFs remain loosely constrained.
Teixeira L   +4 more
europepmc   +2 more sources

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