Results 1 to 10 of about 24,082 (152)

Analysis and Design of Cavity-Backed Probe-Fed Hybrid Microstrip Antennas on FR4 Substrate

open access: yesInternational Journal of Antennas and Propagation, 2015
A novel cavity-backed probe-fed linearly polarized microstrip antenna based on the concept of hybrid radiators is proposed and implemented. The resulting flush-mounted antenna exhibits symmetrical bandwidth, low cross-polarization radiation in the H ...
D. C. Nascimento   +3 more
doaj   +2 more sources

Analytical Model for Predesigning Probe-Fed Hybrid Microstrip Antennas

open access: yesInternational Journal of Antennas and Propagation, 2018
Based on the equivalent resonant cavity model, an effective analysis methodology of probe-fed hybrid microstrip antennas is carried out in this paper, resulting in a better understanding of the parameter interrelations affecting their behavior. With that,
Nilson R. Rabelo   +6 more
doaj   +2 more sources

Species Distribution Modeling Reveals Future Climate Refugia and Important Areas for Rocky Plants in Brazil's Iron Quadrangle. [PDF]

open access: yesEcol Evol
Climate change is projected to sharply reduce suitable habitats for eight endemic rupestrian plant species in Brazil's Iron Quadrangle. Ensemble niche models reveal species‐specific vulnerabilities and highlight climatic refugia and corridors that may support persistence.
Francisconi AF   +4 more
europepmc   +2 more sources

Development and Validation of an Allele-Specific Marker for Resistance to Bacterial Halo Blight in Coffea arabica

open access: yesAgronomy, 2022
Bacterial halo blight (BHB) is a bacterial disease, caused by Pseudomonas syringae pv. garcae, which has been gaining prominence in the main coffee-producing regions.
Caroline Ariyoshi   +8 more
doaj   +1 more source

Genome-wide association study for resistance to Pseudomonas syringae pv. garcae in Coffea arabica

open access: yesFrontiers in Plant Science, 2022
Bacteria halo blight (BHB), a coffee plant disease caused by Pseudomonas syringae pv. garcae, has been gaining importance in producing mountain regions and mild temperatures areas as well as in coffee nurseries.
Caroline Ariyoshi   +18 more
doaj   +1 more source

Providing long‐term care: Options for a better workforce

open access: yesInternational Social Security Review, Volume 75, Issue 3-4, Page 121-144, July-December 2022., 2022
Abstract Older people and their care workers have been disproportionately affected by the COVID‐19 pandemic. Many OECD Member countries have taken measures to contain the spread of the infection and improve the care workforce. Yet the health crisis is highlighting and exacerbating pre‐existing structural problems in the long‐term care (LTC) sector.
Ana Llena‐Nozal   +2 more
wiley   +1 more source

bRacatus: A method to estimate the accuracy and biogeographical status of georeferenced biological data

open access: yesMethods in Ecology and Evolution, Volume 12, Issue 9, Page 1609-1619, September 2021., 2021
Abstract Georeferenced biological data of species distributions, abundances or traits are critical for ecological and evolutionary research. However, the accuracy (true vs. false records) and biogeographical status (native vs. alien) of individual georeferenced records are often unclear, which limits their use in species distribution modelling ...
Eduardo Arlé   +8 more
wiley   +1 more source

Efeito da presença da folha no enraizamento de estacas semilenhosas de porta-enxertos de videira [PDF]

open access: yesCiência Rural, 2005
O objetivo deste trabalho foi estudar o enraizamento de estacas semilenhosas de porta-enxertos de videira IAC 766 e IAC 572 em câmara de nebulização.
Ivan Bordin   +3 more
doaj   +1 more source

Correlação fenotípica entre caracteres agronômicos em população segregante de mandioca de mesa

open access: yesRevista Ceres, 2014
Um dos principais entraves do melhoramento genético de mandioca é a dificuldade de seleção precoce de indivíduos superiores nas primeiras gerações do melhoramento.
Eduardo Alano Vieira   +2 more
doaj   +1 more source

Estaquia e miniestaquia de espécies florestais lenhosas do Brasil

open access: yesPesquisa Florestal Brasileira, 2012
A propagação vegetativa por estaquia e miniestaquia é uma alternativa para superação das dificuldades na propagação via sementes e de clonagem de genótipos superiores de espécies florestais nativas, possibilitando assim sua utilização para fins ...
Poliana Coqueiro Dias   +3 more
doaj   +1 more source

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