A species distribution model for Paracentrotus lividus: predicted projections of habitat suitability

investigating the feasibility of a proposed model for geometric design of deployable arch structures

deployable scissor type structures are composed of the so-called scissor-like elements (sles), which are connected to each other at an intermediate point through a pivotal connection and allow them to be folded into a compact bundle for storage or transport. several sles are connected to each other in order to form units with regular polygonal plan views. the sides and radii of the polygons are...

Sequence and expression of Paracentrotus lividus alpha tubulin gene.

In an effort to study the regulation of tubulin gene transcription during sea urchin embryogenesis we isolated several genomic and cDNA clones encoding for a and j3 polypeptides (1,2). Here we report the sequence of a full length a tubulin cDNA. Comparison of the predicted amino acid sequence of the cDNA clone (a 1 tubulin), shown in Fig. 1, with that of other clones encoding for a different a ...

Asymmetrical localization and segregation of Paracentrotus lividus Bep4 maternal protein

Asymmetric divisions that produce two distinct cells play a fundamental role in generating different cell types during development. Here we investigate the role of the cortex region and mitotic apparatus in asymmetrical localization and segregation of Bep4 protein in Paracentrotus lividus egg. By centrifugation of eggs with or without drugs we established an involvement of the cortex region in ...

Modelling species distribution when habitat occupancy departs from suitability Application to birds in a landscape context

Stress response induced by carbon nanoparticles in Paracentrotus lividus

Members of the 14-3-3 protein family are involved in many important cellular events, including stress response, survival and apoptosis. Genes of the 14-3-3 family are conserved from plants to humans, and some members are responsive to UV radiation. Despite the high rate of pollution generated by nano-pollutants, up to now is totally obscure their toxic effect on development. Embryos treated wit...