A snap fastener is a deformable device consisting of a pair of mating surfaces that \snap" together during assembly. Because of the simple, linear assembly motion, such latching micro fasteners have a wide range of applications in micro assembly tasks, e.g. for devices with multiple or layered components, or micro opto-mechanical plugs. At the micro scale, conventional types of fasteners like s...

We have developed a new method of application of car cinogen to the mucosa of any region of the stomach in rats. By means of an oval fastener and globular polyethylene ampul, a pocket from the stomach wall is formed in which blood circulation and innervation are kept uninterrupted. Ampuls with different numbers of apertures in walls and lipid vehicles with different melting points were investig...

BACKGROUND It is unclear whether or not an additional encircling band improves outcome in vitrectomy for pseudophakic retinal detachment (PRD). Also unclear is whether small gauge transconjunctival trocar-guided vitrectomy is as successful as conventional 20 gauge (G) vitrectomy. METHODS 257 adult patients with uncomplicated PRD were enrolled in 14 vitreoretinal centres across Germany. Contin...

It is well known that Auxin plays a key role in controlling many aspects of plant growth and development. Crystal structures of Transport inhibitor response 1 (TIR1), a true receptor of auxin, were very recently determined for TIR1 alone and in complexes with auxin and different synthetic analogues and an Auxin/Indole-3-Acetic Acid (Aux/IAA) substrate peptide. However, the dynamic conformationa...

Buckling procedures are useful in securing successful re-attachment of the retina. Apart from their role in ensuring a contact between the retina and the choroid during the postoperative healing period, they also help to relax the pull exerted by the vitreous on the retina. When the traction exerted by the vitreous on the retina is marked, it is desirable to aim at a permanent buckling by the u...

The objective of this study was to investigate relation diameter pilot hole and screw, machining accuracy on withdrawal strengths the screws durability dining tables. For purpose, fasteners material types failure loads table corner joints have been analyzed experimentally statistically. Double ended thread bolts with different drilling regimes used as fastener types. Parallel investigation rigi...