Deployable bar structures are especially useful for emergency buildings. These require simplicity and ease of assembly their performance can be improve by using reciprocal linkage at bars ends. This configuration determines singular constructive conditions that allow all types cylindrical vaults. article develops this new system, from a previously theoretical analysis to test campaign allows ve...

Proton-coupled oligopeptide transporters belong to the major facilitator superfamily (MFS) of membrane transporters. Recent crystal structures suggest the MFS fold facilitates transport through rearrangement of their two six-helix bundles around a central ligand binding site; how this is achieved, however, is poorly understood. Using modeling, molecular dynamics, crystallography, functional ass...

OBJECTIVE To determine optimal scissor blade design and surgical approach to facilitate obtaining a long optic nerve segment during enucleation procedures. METHODS Two hundred mock enucleations were performed with the use of a human child skull model and a silicone sphere to simulate an eye. Temporal and nasal approaches with scissor blades with noncurved, mildly curved, or strongly curved bl...

We define Euclidean scissor congruence groups for an arbitrary algebraically closed field F and formulate a conjecture describing them. Using the Euclidean and NonEuclidean F–scissor congruence groups we construct a category which is conjecturally equivalent to a subcategory of the category MT (Fε) of mixed Tate motives over the dual numbers Fε := F [ε]/ε . 1. Euclidean scissor congruence group...

Early treatment of scissor bite has been advocated mainly to prevent function jaw shift that can eventually lead to permanent skeletal asymmetry and temporomandibular joint pathosis. Although unilateral scissor bite is more common, most of the times, bilateral mandibular expansion is indicated. Lingual transforce appliance can be useful in such cases. This article presents a patient with unilat...

Deployable structures are an ideal solution for emergency buildings because of their lightness and compactness, allowing them to be transported wherever they needed. Generally the most frequent solutions use Scissor-like-Elements (SLE), but in this case bundle modules is proposed. These systems were developed by Pérez Piñero, have hardly been used since then. The article analyses problems prese...

Scissor lifts are widely used in industry. The selection of a configuration lift table system plays an important role since this depends on the working requirements systems and also type object. In paper, based parametric dimension technique, mathematical model load calculation for double-stage scissor lifts, which design parameters, were investigated order to enhance operation (e.g., lifting h...