Results 171 to 180 of about 12,325 (304)

A new species of inseminating catfish of the genus Tympanopleura (Siluriformes: Auchenipteridae) from the Ituxi River, Amazon River basin, northern Brazil, revealed by integrative taxonomy

Journal of Fish Biology, EarlyView.
Abstract A new species of the genus Tympanopleura is described from the Iquiri River, a tributary of the Ituxi River, a right‐bank tributary to the Purus River, Amazon River, northern Brazil. The new species is distinguished from all its congeners by a combination of features, such as the presence of an intensely pigmented square‐shaped blotch on the ...
Frank Raynner V. Ribeiro, Cárlison Silva‐Oliveira, Valdenor Magalhães, Lucas Gama, Lúcia H. Rapp Py‐Daniel   +4 more
wiley   +1 more source

Fluid Pressure Sensing Strategy Suitable for Swallowing Soft Gripper. [PDF]

Sensors (Basel)
Li M, Zhang W, Liu Q, Yin Z.
europepmc   +1 more source

Tooth morphology of deep‐water catsharks of the genus Apristurus (Chondrichthyes: Pentanchidae) in the North Atlantic Ocean

Journal of Fish Biology, EarlyView.
Abstract The deep‐water catshark family (Pentanchidae) is the most species‐rich family among extant shark lineages. Within this family, the genus Apristurus is the largest, comprising small, deep‐sea species characterised by elongated bodies and dorso‐ventrally compressed snouts. Five Apristurus species are currently recognised from the North Atlantic,
Jesco Seifert, Daniel M. Moore
wiley   +1 more source

Evaluation of operator experience and nickel-titanium retreatment file systems in curved root canals. [PDF]

Eur Oral Res
Özden İ, Çil A, Cilli B, Gökyar M, Ayhan T, Öveçoğlu HS.   +5 more
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

Class and exploitation in general convex cone economies

Convex cone economies Reproducible solutions Fundamental Marxian Theorem Class-Exploitation Correspondence Principle Axiom for Labor ...
Yoshihara, Naoki
core  

CryoFluorSEM – A new approach for fluorescence and EM imaging of cryofractured plant samples

Journal of Microscopy, EarlyView.
Abstract Cryo‐scanning electron microscopy (CryoSEM) permits the preparation and detailed imaging of bulky samples while keeping them in a hydrated state. For plant biology, cryofractures give information on cell ultrastructure and tissue organisation within a much larger context that is the whole organ or organism.
Raymond Wightman, Gareth Evans, Aram Gurzadyan, Ankiit Ahluwalia, Siyu Miao, Henrik Jonsson, Katharina Schiessl   +6 more
wiley   +1 more source

The construction of homogeneous convex cones [PDF]

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

Axial muscle‐fibre orientations in larval zebrafish

Journal of Anatomy, Volume 246, Issue 4, Page 517-533, April 2025.
In 4 days post‐fertilization zebrafish larvae, the fast axial muscle fibres follow helical trajectories that taper towards the tail. Adjacent muscle fibres form substantial angles relative to each other to accommodate this pattern. Using a novel semi‐automatic method, we quantified 3D fibre angles over the whole muscle volume.
Noraly M. M. E. van Meer, Johan L. van Leeuwen, Henk Schipper, Martin J. Lankheet   +3 more
wiley   +1 more source

Anatomy and Ultrastructural Details of the Compound Eyes of the Pear Psyllid, <i>Cacopsylla chinensis</i> (Yang et Li) (Hemiptera: Psyllidae). [PDF]

Insects
Ran H, Li M, Niu Y, Ma A, Yang X.
europepmc   +1 more source