The magnetization reversal and magnetic domain configurations of 0.5-mm-wide epitaxial ~110! Fe particles with rectangular and needle-shaped ends and competing magnetic anisotropies have been investigated. Magnetic force microscopy imaging and longitudinal Kerr hysteresis loop measurements in conjunction with micromagnetic simulations have been used to elucidate the basic micromagnetic behavior...

Acupunct Med Month 2017 Vol 0 No 0 Figure 1 Shear wave elastography of the gastrocnemius muscle in a longitudinal plane. Rectangular field of view demonstrating good quality shear-wave elastogram as indicated by homogeneously distributed blue colour-coded muscle (A) and evenly spaced propagation waves (B). Quantitative analysis of gastrocnemius muscle stiffness was achieved by placing the small...

Chorion patterns on eggs of Lutzomyia ovallesi fed on seven types of blood were studied using scanning microscopy. The results showed that the different blood sources produced no differences in the patterning. The eggs had a chorion with sinuous longitudinal bridges and a few transverse bridges that formed rectangular shapes. These results confirm that chorion patterns on the eggs of sand flies...

A new species of anthiine fish, Plectranthias alcocki n. sp. is described and illustrated based on two specimens, (63.7-72.5 mm SL), recently collected from deep-waters of the Arabian Sea, off Kollam, Kerala, India. The following combination of characters distinguishes it from all other congeners: Dorsal-fin rays X, 15; anal-fin rays III, 7; pectoral-fin rays 14, all unbranched; pelvic-fin rays...

Alternative hypotheses had been advanced as to the components forming the elongate fin coursing along the ventral margin of much of the body and tail from behind the abdominal region to the posterior margin of the tail in the Electric Eel, Electrophorus electricus. Although the original species description indicated that this fin was a composite of the caudal fin plus the elongate anal fin char...

A biorobotic pectoral fin was developed and used to study how the flexural rigidities of fin rays within a highly deformable fish fin affect the fin's propulsive forces. The design of the biorobotic fin was based on a detailed analysis of the pectoral fin of the bluegill sunfish (Lepomis macrochirus). The biorobotic fin was made to execute the kinematics used by the biological fin during steady...

Acanthoplesiops cappuccino is described from the 16.4 mm SL holotype collected from Jeddah, Saudi Arabia, Red Sea. The following combination of characters distinguishes it from congeners: dorsal-fin rays XVIII,4; anal-fin rays VII,4; pectoral-fin rays 18; caudal fin not connected to last rays of dorsal and anal fins by membrane; and caudal peduncle with a pale yellowish brown bar, which extends...

Females often choose to associate with males that have exaggerated traits. In fishes, this may reflect an overall preference for larger size in a potential mate. Female zebrafish (Danio rerio) prefer males with larger bodies but not longer fins. The availability of mutant and transgenic strains of zebrafish make this a unique model system in which to study the role of phenotypic variation in so...

The fact that some organisms are able to regenerate organs of the correct shape and size following amputation is particularly fascinating, but the mechanism by which this occurs remains poorly understood. The zebrafish (Danio rerio) caudal fin has emerged as a model system for the study of bone development and regeneration. The fin comprises 16 to 18 bony rays, each containing multiple joints a...