bones of the pectoral girdle skeleton in representatives of 48 genera in 41 families of eurypterygian fishes were studied. the structure and position of the pectoral girdle is relatively stable in eurypterygians. it consists of the extrascapula, posttemporal, supracleithrum, cleithrum, postcleithrum, scapula, coracoid, actinosts, and fin rays. an ectocoracoid is present in some gasterosteiforme...

We describe a fabrication process which forms InGaAs fins with sub 10nm thickness and 180nm height. The process flow requires no semiconductor dry-etch, thereby avoiding surface damage arising from such processes. Instead, InGaAs fins are formed using nanometer controlled atomic layer epitaxial growth, using tertiarybutylarsine, upon InP sidewall which are eventually selectively etched. Such fi...

Neural circuits are shaped by activity-dependent elimination of redundant synapses during postnatal development. In many systems, postsynaptic activity is known to be crucial, but the precise mechanisms remain elusive. Here, we report that the immediate early gene Arc/Arg3.1 mediates elimination of surplus climbing fiber (CF) to Purkinje cell (PC) synapses in the developing cerebellum. CF synap...

a myxozoan parasite belonging to the genus thelohanellus kudo, 1933 (cnidaria, myxosporea, bivalvulida) was isolated from the fins of labeo dero inhabiting ranjit sagar wetland, punjab, india. the plasmodium was 0.5-0.7 mm in diameter each containing 80- 100 number of myxospores. myxospores were egg shaped to ovoidal in valvular view having bluntly pointed anterior and broad rounded posterior e...

This study was conducted to examine morphometric and meristic characteristics alongside pigmentation patterns of bream larvae, Abramis brama orientalis, in four stages of larval development. Morphological characters including total length (TL), standard length (SL), notochord length (NL), head length (HL), head depth (HD), eye diameter (ED) and mouth width (MW) were examined from hatching time ...

We estimated the speed of Zika virus introduction in Brazil by using confirmed cases at the municipal level. Our models indicate a southward pattern of introduction starting from the northeastern coast and a pattern of movement toward the western border with an average speed of spread of 42 km/day or 15,367 km/year.

Recognition of aberrant root canal configurations is critical to successfully negotiate and treat a one such aberrancies C shape system. The fins webs present in system presents challenge debridement obturation. Knowledge variations through advanced imaging modalities like CBCT, rotary hand instruments assisted with ultrasonics modified obturation techniques aid effective management shaped cana...

The use of an artificial roughness on a surface of absorber plate is an effective technique to enhance the rate of heat transfer to fluid flow in the duct of a solar air heater. This paper presents a comparison of parameters that enhance the heat transfer coefficient thus efficiency ofa solar air heater for different artificially roughened geometries for the Reynolds number from 2500 -18000. Th...