PURPOSE The aim of this study was to evaluate whether the push-out bond strength varies between oval and circular fiber posts, and to examine the effect on the resin cement thicknesses around the posts. MATERIALS AND METHODS Eighteen mandibular premolar roots were separated into two groups for oval and circular fiber posts systems. Post spaces were prepared and fiber posts were luted to the p...

Hepatocyte growth factor/scatter factor (HGF/SF) is a pleiotropic effector for cells expressing the Met tyrosine kinase receptor. In this investigation, we show that pancreatic oval cells express Met and exhibit a proliferative response to HGF/SF. Additionally, we found that oval cells treated transiently with this factor become "scattered," whereas those exposed to HGF/ SF for extended periods...

Histophysiological study of pituitary gland was conducted on Madras red sheep to record the age related changes. The pars distalis adenohypophysis comprised of cells arranged in irregular cords, grouped as acidophils, basophils and chromophobes. The basophils were round, oval and irregularly polygonal cells with distinct cell boundaries observed as 4 variants. The type I basophils were angular ...

The liver has the unique capacity to regulate its growth and mass. In rodents and humans, it grows rapidly after resection of more than 50% of its mass. This growth process, as well as that following acute chemical injury is known as liver regeneration, although growth takes place by compensatory hyperplasia rather than true regeneration. In addition to hepatocytes and non-parenchymal cells, th...

We prove that if the outer billiard map around a plane oval is algebraically integrable in a certain non-degenerate sense then the oval is an ellipse. In this note, an outer billiard table is a compact convex domain in the plane bounded by an oval (closed smooth strictly convex curve) C. Pick a point x outside of C. There are two tangent lines from x to C; choose one of them, say, the right one...

For reducing the initial GSHP investment, heat transfer efficiency of borehole exchange (BHE) system can be enhanced to reduce number or depth drilling. This paper proposes a novel and simple BHE design by changing cross-sectional shape U-tube increase BHEs. Specifically, in this study, we (1) verified reliability three-dimensional numerical model based on thermal response test (TRT) (2) compar...

Since the advent of stapedotomy and its use in the treatment of otosclerosis, a few complications have been reported in the literature. Among them, the granulomatous reaction, described by Harris and Weiss in 1962, is rare. It is an excessive inflammation that forms granulation tissue around the prosthesis and the oval windows. Although the etiology is uncertain, several authors believe that th...

considered the possibility of the transformation of the oval cells into hepatocytes (5, 16, 21, 31), but many others were not in agreement as to the existence of such transformation and rather considered the cells to disappear by cell death and removal (9, 22, 23, 25, 26). Inaoka (1 1), in our laboratory, examining the early stage of azo dye hepatocarcinogenesis in rats, concluded that the oval...

Semiclassical approximations often involve the use of stationary phase approximations. This method can be applied when h is small in comparison to relevant actions or action diierences in the corresponding classical system. In many situations, however, action diierences can be arbitrarily small and then uniform approximations are more appropriate. In the present paper we examine diierent unifor...

OBJECTIVE To determine the most common maxillary and mandibular arch form and size in primary dentition stage. MATERIAL AND METHODS Four hundred thirty five preschool children were included in this study with an age range of 3.5-5.5 years old. Dental casts were digitized and landmarks for the measurements were identified and marked on each model. Ten points were determined on the dental arch....