Results 81 to 90 of about 222,820 (188)

A fractal pattern of hierarchical genetic population structure in mixed stocks across fish segregated by dams revealed by genomic resources for curimba Prochilodus lineatus

Journal of Fish Biology, EarlyView.
Abstract Genomic resources, new microsatellite markers and a novel observation of a fractal pattern in the genetic population structure are presented for curimba, Prochilodus lineatus, a freshwater migratory model species of South America. Our main goals were to investigate the presence of mixed fish stocks and the effects of damming‐induced ...
Gabriel M. Yazbeck, Gésica Aparecida Santana Nascimento, Leiliane Campos Carvalho, Raíssa Cristina Dias Graciano, Rosiane de Paula Santos, Rafael Sachetto Oliveira   +5 more
wiley   +1 more source

PAIRWISE ASSOCIATION AS A CRITERION FOR THE SELECTION OF COLLECTION SITES OF NATURAL ENEMIES OF THE CASSAVA GREEN MITE, Mononychellus tanajoa (BONDAR)

Scientia Agricola, 1996
Climatic similarity has been the primary parameter considered in the selection of sites for the collection and release of natural enemies in classical biological control programs.
G.S. RODRIGUES, L.C. PARAÍBA, G. J. de MORAES   +2 more
doaj  

Induced spawning of the endangered Neotropical species Steindachneridion parahybae (Siluriformes: Pimelodidae)

Neotropical Ichthyology
The "surubim do Paraíba" (Steindachneridion parahybae) is a freshwater catfish endemic to the Paraíba do Sul River basin, Brazil. This species has been seriously threatened by environmental disturbances in the last several decades. Wild Steindachneridion
Danilo Caneppele, Renato M. Honji, Alexandre W. S. Hilsdorf, Renata G. Moreira   +3 more
doaj   +1 more source

The polar ring galaxy AM 2040-620 and its possible companion

, 2012
Polar ring galaxies (PRGs) are peculiar systems where a gas-rich, nearly polar ring surrounds a host galaxy. They are the result of galaxy interactions that form mainly by tidal accretion of material from a gas rich donor galaxy.
Faúndez-Abans, Maximiliano, Freitas-Lemes, Priscila, Rodrigues, Irapuan   +2 more
core   +1 more source

A new South American darter (Crenuchidae: Characidium) from rivers draining the Northeastern Mata Atlantica Freshwater Ecoregion, Brazil: morphological and molecular evidence

Journal of Fish Biology, EarlyView.
Abstract Characidium tupi, a new species from rivers draining the southern portion of the Northeastern Mata Atlantica Freshwater Ecoregion, is described. The new species can be distinguished from all congeners by its colour pattern, including 7–14 dark bars enlarged and more conspicuous on their ventralmost portion, resulting in a longitudinal series ...
Angela M. Zanata, Leonardo Oliveira‐Silva   +1 more
wiley   +1 more source

Dos indicios à constituição da pesquisa em história da educação no PPGE/UFPB

Revista Histedbr On-line, 2012
Este trabalho vincula-se ao grupo de estudos e pesquisas História da Educação da Paraíba(HISTEDBR/GT-PB) e ao projeto de pesquisa Educação e educadoras na Paraíba doséculo XX: práticas, leituras e representações.
Charliton José dos Santos Machado, Maria Lúcia da Silva Nunes, Melânia Mendonça Rodrigues   +2 more
doaj   +1 more source

Nonsingular Black Holes in $f(R)$ Theories

, 2015
We study the structure of a family of static, spherically symmetric space-times generated by an anisotropic fluid and governed by a particular type of $f(R)$ theory.
Olmo, Gonzalo J., Rubiera-Garcia, D.
core   +1 more source

Integrative taxonomy reveals four new species of the armoured catfish genus Pareiorhina (Siluriformes: Loricariidae) from the upper Paraná River basin, Brazil

Journal of Fish Biology, EarlyView.
Abstract Four new species of the small‐sized armoured catfish genus Pareiorhina are described from mountain ranges in the Grande River drainage, upper Paraná River basin, based on morphological and molecular species delimitation methods. Molecular analyses based on the cytochrome oxidase subunit I (COI) marker recovered Pareiorhina as polyphyletic ...
Pedro L. C. Uzeda, Luana J. Sartori, Axel M. Katz, Felipe P. Ottoni, Wilson J. E. M. Costa, Francisco Langeani, Valter M. Azevedo‐Santos   +6 more
wiley   +1 more source

Tillandsia paraibensis, a new species of Bromeliaceae from Northeastern Brazil

Rodriguésia
Tillandsia paraibensis is described and illustrated as a new species known only from the state of Paraíba, Brazil. The affinities of this new species to other species and information on its biology are discussed.
Ricardo Ambrósio Soares de Pontes
doaj   +1 more source

INSTITUTIONAL HISTORICITY OF NURSING TEACHING IN PARAÍBA STATE/BRAZIL: A CONTRIBUTION FOR THE STUDY

Cogitare Enfermagem, 2007
The present study is an excerpt of the dissertation for the author’s master’s degree and objectifies to track down thehistorical trail of nursing teaching in Paraíba State/Brazil, focusing on institutional transformations that determined changes in ...
Daísy Vieira de Araújo, Cesar Cavalcanti da Silva   +1 more
doaj   +1 more source