Arabidopsis trichomes are branched, single-celled epidermal hairs. These specialized cells provide a convenient model for investigating the specification of cell fate in plants. Two key genes regulating the initiation of trichome development are GLABROUS1 (GL1) and TRANSPARENT TESTA GLABRA (TTG). GL1 is a member of the myb gene family. The maize R gene, which can functionally complement the Ara...

Nearly all extant land plants possess stomata, the epidermal structures that mediate gas exchange between the plant and the environment. The developmental pathways, cell division patterns, and molecules employed in the generation of these structures are simple examples of processes used in many developmental contexts. One specific module is a set of "master regulator" basic helix-loop-helix tra...

In the presence of Rashba-Dresselhaus coupling, strong spin-orbit interactions in liquid-crystal optical cavities result a distinctive spin-split entangled dispersion. Spin coherence between such modes gives rise to an optically persistent spin helix. this paper, we introduce gain system, by dispersing molecular dye microcavity, and demonstrate spin-helix lasing regime.

We introduce a method to construct parametric surfaces interpolating given finite points and curve as line of curvature in 3-dimensional Euclidean space. present an existence theorem $C^{0}$-Hermite interpolation possessing the data. show that every parameter constructed surface is circular helix if helix. The validated with illustrative examples.

This paper defines a framework for the spatio-temporal analysis of motion imagery (MI) datasets depicting two-dimensional phenomena evolving in time. More specifically, we introduce the concept of a spatiotemporal helix as a concise representation of spatiotemporal events, modeling their path in space and the variations of their outline. We also present in some detail the automated algorithms d...

Abstract Helix-fiber composites (HFCs), which involve wrapping a material around flexible core, are of interest for intelligent stretchable functional materials or devices. Here, we reveal that mechanical coupling between the core and plays critical role in controlling structure properties. Our results show properties HFC can be programmed by precisely tuning strength among them. Interestingly,...

The GXXXG motif is a frequently occurring sequence of residues that is known to favor helix-helix interactions in membrane proteins. Here we show that the GXXXG motif is also prevalent in soluble proteins whose structures have been determined. Some 152 proteins from a non-redundant PDB set contain at least one alpha-helix with the GXXXG motif, 41 +/- 9% more than expected if glycine residues we...

Author affi liations: Etablissement Français du Sang Alpes-Méditerranée, Marseille, France (P. Biagini, M. Touinssi, C. Picard, P. Gallian, J.-F. Cantaloube, P. de Micco); Université de la Méditerranée, Marseille (P. Biagini, M. Touinssi, P. Gallian, J.-F. Cantaloube, P. de Micco); Centre Hospitalier Universitaire, Marseille (B. Dussol); Hôpital de la Conception, Assistance Publique de Marseill...