BACKGROUND Glenoid component survival is critical to good long-term outcomes in total shoulder arthroplasty. Optimizing the fixation environment is paramount. The purpose of this study was to compare two glenoid cementing techniques for fixation in total shoulder arthroplasty. METHODS Sixteen cadaveric specimens were randomized to receive peg-only cementation (CPEG) or full back-side cementat...

In 1975, Social Security beneficiaries were given the option of having their monthly benefit payments sent directly to their banks through an electronic funds transfer system. Since then, beneficiaries have been enrolling in this program in rapidly increasing numbers. At the end of 1976, fewer than 5 million beneficiaries--14 percent of the total--were enrolled in the program. By the end of 198...

Parking Services [1] Parking permits are required to park on campus. Parking permits can be purchased online. Campus Map [2] The Campus map allows you to search for a location on campus by selecting a building or selecting a department name. Identification (ID) card Please visit Human Resources, 5th floor, South Tower, University Centre, to complete an ID application form. Your University of Gu...

Parking Permits [1] Parking permits are required to park on campus. Parking permits can be purchased online. Campus Map [2] The Campus map allows you to search for a location on campus by selecting a building or selecting a department name. Identification (ID) card Please visit Human Resources, 5th floor, South Tower, University Centre, to complete an ID application form. Your University of Gue...

Abstract Coal balls are carbonate concretions that preserve peat in cellular detail. Despite their importance to paleobotany, the salinity of coal-ball remains controversial. Pennsylvanian coal from Midland and Illinois basins contain echinoderms early high-magnesium calcite cement. Echinoderm skeletons reflect Mg/Ca ratio seawater which they grew. Here we show well-preserved North American mar...

Abstract Pyrite nodules up to 20 cm in diameter are found at the top of Marinoan (~ 635 Ma) Nantuo glacial diamictite as well cap dolostones and shale/siltstones lower Doushantuo Formation eastern Guizhou, southern China. Field occurrences, petrography, stable sulfur isotopic compositions pyrite were studied from a section Taoying, ? 34 S values different varied 7.3 60.5‰ stratigraphic levels. ...

counties (Torrent et al., 1980), and in soils formed in late The morphologic development of soils on marine terraces is a function of terrace age and geomorphic evolution. In this study, inter­ relationships between terrace landscape evolution and pedogenic sil­ ica cementation were investigated. Soil morphology, micromorphol­ ogy, selective dissolution, penetration resistance, and hydraulic co...

PURPOSE In this study, we aimed to evaluate the amount of marginal gap with two different substructure materials using identical margin preparations. MATERIALS AND METHODS Twenty stainless steel models with a chamfer were prepared with a CNC device. Marginal gap measurements of the galvano copings on these stainless steel models and Co-Cr copings obtained by a laser-sintering method were made...