Results 181 to 190 of about 4,132 (306)

A new catfish species of Microcambeva Costa & Bockmann, 1994 (Siluriformes: Trichomycteridae) from southern Brazil, with a redescription of M. ribeirae Costa, Lima & Bizerril, 2004

Journal of Fish Biology, EarlyView.
Abstract Among the few species of Microcambeva reported as occurring in more than one hydrographic basin, M. ribeirae has been previously listed from both the Ribeira de Iguape and the Guaraqueçaba basins. However, morphological and molecular analyses revealed that the specimens from Guaraqueçaba represent a new species, which is described in this ...
Lucas S. de Medeiros, Igor C. A. Souto‐Santos, Paulo A. Buckup, Juliano Ferrer, Vinicius J. C. Reis, Mario de Pinna, Sergio M. Q. Lima   +6 more
wiley   +1 more source

Universality for Taylor coefficients of rational functions under perturbations. [PDF]

Proc Natl Acad Sci U S A
Baryshnikov Y, Pemantle R.
europepmc   +1 more source

Discrete convexity cones

Journal of Numerical Analysis and Approximation Theory, 1988
A new generalization of convex sequences is given. Generalizations of several known results for such sequences are obtained.
openaire   +3 more sources

A new, conspicuously pigmented Pyrrhulina (Teleostei: Characiformes: Lebiasinidae) from the Río Tigre, Loreto, Peru

Journal of Fish Biology, EarlyView.
Abstract A new species of Pyrrhulina is described based on morphological and molecular evidence. Pyrrhulina punctata is distinguished from all congeners by the presence of a series of 7 to 16 irregular blotches of dark pigmentation on the flanks, equally marked in juveniles and adult specimens, the presence of 26–28 lateral‐line scales, 17–21 maxillary
Andre Netto‐Ferreira, Lorena Vieira, Taina Souza, Morgan Ruiz‐Tafur, James Garcia‐Ayala   +4 more
wiley   +1 more source

New fixed points of mixed monotone operators with applications to nonlinear integral equations. [PDF]

PLoS One
Xu S, Han Y, Lin S, Zhou G.
europepmc   +1 more source

The construction of homogeneous convex cones [PDF]

Bulletin of the American Mathematical Society, 1963
openaire   +4 more sources

A new Hyphessobrycon (Characiformes: Acestrorhamphidae) of the Hyphessobrycon agulha lineage of Hyphessobryconinae from the lower Aripuanã basin, Brazil, with comments about the lineage

Journal of Fish Biology, EarlyView.
Abstract A new species of Hyphessobrycon is described from a tributary of Rio Jatuarana, lower Rio Aripuanã basin, Rio Madeira basin, Apuí, Amazonas. The new species is part of the Hyphessobrycon agulha lineage, with the typical midlateral narrow black stripe immediately followed dorsally by an iridescent stripe.
Tiago C. Faria, Willian M. Ohara, Iann Leonardo Pinheiro Monteiro, Claudio Oliveira   +3 more
wiley   +1 more source

Integrative taxonomy reveals two new species of whiptail catfishes Loricaria (Siluriformes: Loricariidae) from northeastern Brazil

Journal of Fish Biology, EarlyView.
Abstract Two new species of whiptail catfish, Loricaria (Siluriformes: Loricariidae), were discovered in the Munim and Itapecuru river basins, Maranhão State, northeastern Brazil, through an integrative taxonomic approach combining morphology and mitochondrial DNA.
Ananda. C. Serejo‐Saraiva, Nivaldo M. Piorski, Felipe P. Ottoni, Mark H. Sabaj, Sergio M. Q. Lima   +4 more
wiley   +1 more source

Dual-color augmented reality waveguide display for color vision assistance using color tracking. [PDF]

iScience
Cho SH, Baek DH, Choi WJ, Choi YW.
europepmc   +1 more source

Normal cones, barrier cones, and the “spherical image” of convex surfaces in locally convex spaces [PDF]

Pacific Journal of Mathematics, 1977
openaire   +2 more sources