We give a common generalization of (1) Hassett’s weighted stable curves, and (2) Hacking-Keel-Tevelev’s stable hyperplane arrangements.

This paper reports the first noninvasive, volumetric study of entire cross-sections of a sea urchin tooth in which the individual calcite structural elements could be resolved. Two cross-sectionally intact fragments of a Lytechinus variegatus tooth were studied with synchrotron microCT (microcomputed tomography) with 1.66 microm voxels (volume elements). These fragments were from the plumula, t...

The bottom topography of ridged sea ice differs greatly from that other sea-ice types. form drag ridge keels has an important influence on drift and deformation. In this study, both laboratory experiment (LabE) fluid dynamics numerical simulation (FDS) have been carried out for a physical model in tank to better understand the quantitative characteristics drag. LabEs covered laminar turbulent c...

The effects of 3 different furnished cage systems (Aviplus, Eurovent 625a, Eurovent 625A) on 2 different laying hen strains [Lohmann Selected Leghorn (LSL), Lohmann Brown (LB)] were examined for the traits of production, egg quality, bone strength, claw length, and keel bone status. Two trials were carried out in which all hens received identical feeding and management. In brown hens, the trait...

UNLABELLED Ventral hernia is a common problem in general surgery practice. Incisional hernia can develop in 15-25% of patients after abdominal surgery. The aim of this study was to compare two different methods of incisional hernia surgery. MATERIALS AND METHODS A retrospective analysis of database of surgery department from 1997 to 2000 was performed. All patients were divided into two group...

BACKGROUND CONTEXT Vertebral end plate support is necessary for successful lumbar total disc replacement (TDR) surgery. Failure to achieve anterior column support as a result of lumbar TDR device undersizing could lead to implant subsidence and fracture. PURPOSE The purpose of the study was to examine the compressive biomechanical behavior of the vertebral end plate with varying sizes of disc...