Results 51 to 60 of about 186,828 (229)

Experimental observation of a complex periodic window

, 2008
The existence of a special periodic window in the two-dimensional parameter space of an experimental Chua's circuit is reported. One of the main reasons that makes such a window special is that the observation of one implies that other similar periodic ...
Baptista, M. S., Caldas, I. L., Maranhão, D. M., Sartorelli, J. C.   +3 more
core   +1 more source

Hybrid Quatsome‐Encapsulated Silver Nanoparticles as Stable Plasmonic Substrates for Surface‐Enhanced Raman Scattering

Journal of Raman Spectroscopy, EarlyView.
In this work, silver nanoparticles encapsulated within quatsome membranes have shown to preserve their plasmonic properties for at least 165 days without aggregation. These hybrid nanostructures enable strong SERS enhancement of pyrene and Prodan by confining the molecules within a few nanometers from the silver surface.
Renato Cezar Peramezza Ribeiro, Caio Hiroaki Miyake, Pedro Henrique Figueiredo Backes Costa, Jhenifer Hallen Braga Mauricio, Ana Luiza Correa Januário, Diogo Soga, Evandro Luiz Duarte, Márcia de Almeida Rizzutto, Rômulo Augusto Ando, Antonio Rodrigues da Cunha, Erix Alexander Milán‐Garcés   +10 more
wiley   +1 more source

EPIDEMIOLOGICAL CHARACTERIZATION OF COVID-19 CASES IN MARANHÃO: A BRIEF ANALYSIS

Revista Prevenção de Infecção e Saúde, 2020
Introdução: Neste estudo analisamos o perfil epidemiológico de notificações de casos do novo coronavírus (SARS-Cov-2) no Estado do Maranhão. Delineamento: trata-se de um levantamento epidemiológico de casos e óbitos por COVID-19 notificados no estado do ...
J. Almeida, Jonas Alves Cardoso, E. Cordeiro, Messias Lemos, Telma Maria Evangelista de Araújo, A. Sardinha   +5 more
semanticscholar   +1 more source

Taxonomic study of Epidendrum (Laeliinae–Orchidaceae) in the state of Maranhão, northeastern Brazil

Rodriguésia, 2021
The Brazilian state of Maranhão is located in a transition zone between the Amazon and Cerrado domains; its geographic position enables the coexistence of species from both biomes.
G. Gomes, A. W. Ferreira, Maycon Jordan Costa da Silva, G. M. D. Conceição, E. Pessoa   +4 more
semanticscholar   +1 more source

Macrozoneamento ecológico-econômico: potencialidades e fragilidades do Estado do Maranhão. [PDF]

, 2014
O Maranhão possui parte de sua extensão em área de Amazônia Legal e a Embrapa Monitoramento por Satélite e a Embrapa Cocais, conjuntamente com a Secretaria de Estado do Planejamento e Orçamento do Maranhão (Seplan) e com apoio de demais Secretarias de ...
ARAUJO, L. S. de, BATISTELLA, M., BOLFE, E. L., VICENTE, L. E., VICTORIA, D. de C.   +4 more
core  

The logic of law: high expectations and some disappointments [PDF]

, 2009
Traducción de Pablo E. NavarroPartiendo de la controversia entre S. Haack y E. Bulygin acerca de la lógica en el Derecho, el artículo analiza las perspectivas de usar herramientas lógicas para desarrollar modelos de la actividad de la interpretación del ...
Maranhão, Juliano
core   +2 more sources

Precision Restoration to Minimize Soil Loss in a Watershed in the Atlantic Forest Domain

Land Degradation &Development, EarlyView.
ABSTRACT The Turvo River Watershed, located in the Zona da Mata region of Minas Gerais and part of the Doce River Basin, faces serious problems of erosion and soil degradation, which compromise and reduce the quality of local water resources. Given this scenario, it is essential to implement environmental recovery strategies that prioritize the ...
Rodrigo Nobre Santana, Luíza Maria Affonso Lopes da Silva, Sady Júnior Martins da Costa Menezes, Getúlio Fonseca Domingues, Carlos Antônio Alvares Soares Ribeiro, Plinio Antonio Guerra Filho, Alexandre Rosa dos Santos   +6 more
wiley   +1 more source

Leafy liverworts of Chapada das Mesas National Park: a floristic survey and checklist of the leafy liverworts of Maranhão state, Brazil

, 2021
Chapada das Mesas National Park (CMNP) is the fourth largest conservation unit in Maranhao state and an important area for the study of bryophytes due to its geomorphological characteristics, predominant vegetation, and water potential.
J. A. Da Pereira Silva, F. R. Oliveira-da-Silva, A. L. Ilkiu-Borges, R. Fernandes   +3 more
semanticscholar   +1 more source

"Summer school on public policies evaluations methods”. Deliverable D4.5 [PDF]

, 2019
The study aimed to analyse the processes of construction, institutionalization and implementation of agroecology and organic agriculture (PEAPO) policies in several federated states of Brazil to identify progress, obstacles and effects of interactions ...
Assis, William, De Avila, Mario Lucio, Gueneau, Stéphane, Niederle, Paulo André, Piraux, Marc, Sabourin, Eric, Schmitt, Claudia Job   +6 more
core  

Dicrananthera hedyotidea C. Presl. (Melastomataceae) in Maranhão state, Brazil: first record and ecological niche model of the species

Nordic Journal of Botany, EarlyView.
Dicrananthera C. Presl. is a monospecific genus of the tribe Marcetieae, comprising perennial herbs typically occurring in areas adjacent to wetlands. The species exhibits a disjunct distribution, with confirmed records in both the Amazon and Atlantic Forest domains.
Elias Julio Oliveira Correa, Sandro Márcio dos Santos Junior, Antônio Fernando Costa da Silva, Kalynne Nayara Lima dos Santos, Eduardo Bezerra de Almeida Jr   +4 more
wiley   +1 more source