Standard-length porous-coated tapered femoral stems perform exceedingly well in primary total hip arthroplasty (THA) at long-term follow-up. Nevertheless, there are multiple reasons to strongly consider the relatively new concept of short tapered stems. First, there is already a wide variation in the lengths of "standard" components and the ideal length is unknown. The goal of tapered stems is ...

OBJECTIVES The purpose of this in vitro study was to assess the effect of root canal preparation size and taper on the amounts of glucose penetration. MATERIAL AND METHODS For conducting this experimental study, eighty mandibular premolars with single straight canals were divided randomly into 2 experimental groups of 30 samples each and 2 control groups. Using K-files and the balance force t...

In this paper, we report a tapered thin-core fiber based in-line Mach-Zehnder interferometer to improve the response of axial-strain. With varied diameters taper waist, light field distributions are studied by beam propagation method, and structures fabricated arc-discharged lateral offset splicing tapering techniques. The comprehensive tests then conducted compared in terms axial-strain temper...

Arc-shaped forceps are important in pharyngeal cancer surgery, endoscopic sinus surgery, and single port surgery. Rotating the gripper of an arc-shaped forceps with respect to its shaft axis can improve the manipulability of the forceps. Concentric pipe structures consisting of inner and outer pipes are often used for this purpose. The inner pipe transmits rotations from its proximal end to dis...

The tapered pile offers sustainable use of construction materials due to its higher axial and lateral capacity better performance owing geometry. This paper develops a semi-analytical solution the vertical dynamic impedance based on Winkler theory transfer matrix method. accuracy reliability proposed approach are verified by comparing functions cylindrical piles obtained from analytical finite ...

OBJECTIVE To present and evaluate our initial results with a modified double face onlay preputial flap (DOPF) for repair of different degrees of hypospadias. MATERIAL AND METHODS From April 2004 to April 2009, 182 patients with different degrees of hypospadias (distal penile hypospadias = 122, mid penile hypospadias = 38, proximal penile hypospadias = 22) were included in our study. All patie...

Although three-dimensional nanostructured solar cells have attracted extensive research attention due to their superior broadband and omnidirectional light-harvesting properties, majority of them are still suffered from complicated fabrication processes as well as disappointed photovoltaic performances. Here, we employed our newly-developed, low-cost and simple wet anisotropic etching to fabric...

INTRODUCTION: Anterior lumbar interbody fusion (ALIF) using threaded cages has been shown to reduce segmental motion and restore the disc space. The effectiveness of these stand-alone cages in restoration and maintenance of intervertebral foramens has received little attention. Foraminal height reduces an average of 6.5 mm following disc removal, and interbody cages may indirectly increase and ...

The functioning of the first type, the flue or labial pipe, was already investigated within previous extensive research projects. The second pipe type, the reed pipe, is less often installed in pipe organs, and only little research was done in this field so far. This is why this pipe type is now the focus of research of the working group ‚Musical Acoustics ‘ at the Fraunhofer Institute for Buil...