The pecten oculi of the Australian galah (Eolophus roseicapillus) has been examined by both light and electron microscopy. In this species the pecten is large relative to the size of the eye and is of the pleated type. It consists of 20-25 accordion folds that are joined apically by a bridge of tissue which holds the pecten in a fan-like shape widest at its base. Within each fold are many melan...

Technology dependent logic optimization is usually carried through a sequence of design rewiring operations. In [18] a new design rewiring method is proposed that combines error diagnosis and correction techniques with ATPG. In this work, we examine its complexity and we arrive to a new set of results with interesting theoretical and practical applications. We also present experiments that conf...

Pecten dijkstrai n. sp. is described from several localities in northern Western Australia. It represents a new, rare example of a tropical member of the genus Pecten. The new species most closely resembles P. excavatus Anton, 1838, previously reported from southern Japan to Indonesia, differing in its smaller size, greater length (antero-posterior dimension), more numerous, lower radial costae...

Interand intra-specimen variability masks reliable temperature control on shell Mg/Ca ratios in laboratory and field cultured Mytilus edulis and Pecten maximus (bivalvia) P. S. Freitas, L. J. Clarke, H. A. Kennedy, and C. A. Richardson School of Ocean Sciences, College of Natural Sciences, Bangor University, UK Departamento de Geologia Marinha, INETI, Portugal Received: : 29 November 2007 – Acc...

In this study, the pecten oculi of a diurnally active bird, the Japanese jungle crow (Corvus macrorhynchos), was examined using light and electron microscopy. In this species, the pecten consisted of 24-25 highly vascularized pleats held together apically by a heavily pigmented 'bridge' and projected freely into the vitreous body in the ventral part of the eye cup. Ascending and descending bloo...

The family Pteridaceae in Iraq comprises 6 species belongs5 genera. These occur a diverse range of environments including humid temperate forests, the falls waterfalls and shrub lands. fern was collected from different locations environment geographical habitats during seasons two districts Iraqi Kurdistan. anatomical structure aerial parts were studied. Fronds petiole rachis (midribe) exhibitY...