Food vacuoles in peritrichs form by pinching off the distal half of the cytopharynx; and thus the pharyngeal membrane must be renewed during feeding. Correlation of lightand electronmicroscopic observations indicates that the membranes of the ingestive—digestive system recycle. As the young food vacuoles enter the first stage of digestion (condensation of the vacuole), they pinch off cup-shaped...

INTRODUCTION Malposition of the acetabular component is a risk factor for postoperative dislocation after total hip arthroplasty (THA)[1]. Current radiographic techniques for assessing cup anteversion have been developed, but they have limitations[2]. The purpose of this study is to investigate the effect of and reduce the error caused by various pelvis postures on cup anteversion measurement. ...

Initial stability is an essential prerequisite to achieve osseointegration of press-fit acetabular cups in total hip replacements. Most in vitro methods that assess cup stability do not reproduce physiological loading conditions and use simplified acetabular models with a spherical cavity. The aim of this study was to investigate the effect of bone density and acetabular geometry on cup stabili...

BACKGROUND Cotyloplasty is a technique that involves making a perforation of the medial wall of a shallow acetabulum and then inserting an acetabular cup with the medial aspect of its dome beyond the Kohler line. The purpose of this study was to evaluate the results of cementless total hip arthroplasty (THA) using cotyloplasty with focusing on the amount of medial cup protrusion. METHODS Sixt...

Background Several 2-dimensional and 3-dimensional surfaces are available for cementless acetabular fixation. Plain radiographs are used to assess osseointegration; however, the radiographs are limited by their inability to capture the bone fixation process occurring over the 3-dimensional cup surface. In this cadaveric study, we compared the bone apposition between 2-dimensional and 3-dimensio...

the current study was conducted to evaluate effects of sequential or wet feeding programs subsequent to and early meal feeding regime on performance, carcass characteristics and humoral immunity in broiler chicks. 192 ross 308 chicks (seven-day old) were allocated to four treatments at four replicates (12 chicks per plot) based on a completely randomized design. treatments were included: contro...