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The purpose was to investigate whether a new biphasic and injectable ceramic bone substitute Cerament™ that rapidly remodels to bone, may contribute to the retention of titanium implant screws during the healing period, and to analyze the pattern of bone formation around titanium implants.Titanium screws were implanted in rat tibiae and embedded with or without Cerament™ on the cortical surface. T
Hydrocarbon contamination may affect the soil microbial community, in terms of both diversity and function. A laboratory experiment was set-up, with a semi-arid control soil and the same soil but artificially contaminated with diesel oil, to follow changes in the dominant species of the microbial community in the hydrocarbon-polluted soil via proteomics. Analysis of the proteins extracted from enr
Both Canada and Germany are multi-cultural societies, but with different approaches to this reality. In this chapter, I explore the question of how young people understand and define their social positions, and how much the process is influenced by the societies they live in. I use material from a qualitative research project in one German and one Canadian secondary school. Young people with and w
An important failure mode of RC beams retrofitted with FRP plates is plate end debonding. Design codes provide equations for estimating shear stress at the plate end, but none of these equations include the FRP to concrete width ratio. This paper suggests an improved equation for calculating shear stress that includes the width ratio. The new equation was obtained by fitting 3D nonlinear FEM resul
The purpose of this study was to increase the understanding of, and develop a model to explain, interrelations between purchasing strategies carried out by buyers within vaccine supply chains for developing countries and their buyer-supplier power structure. In the humanitarian aid context, availability of required goods (e.g. health related products) at the right time and place is of vital import
Design methods are necessary to support product development companies in improving their product development processes, and thereby in producing high quality products. The uptake of design methods in product development companies is limited and lower than one might expect. There is a wide variety of literature related to factors that influence the uptake of design methods in companies. In this pap
A 12 GHz PLL with digital output phase control has been implemented in a 90 nm CMOS process. It is intended for LO signal generation in integrated phased array transceivers. Locally placed PLLs eliminate the need of long high frequency LO routing to each transceiver in a phased array circuit. Routing losses are thereby reduced and design of integrated phased array transceivers become more modular.
Education reforms in Iran is the most recent endeavor of the theocratic state to enhance the vision of the revolution in creating homo-Islamicus (the committed Muslim) and provide strategies for the national education to meet the demands of a globalized and competing world. The reform is the interplay of a rigid interpretation of religion, international discourse and local needs. On one hand, it i
This paper discusses design and measurements of a flexible Viterbi decoder fabricated in 130-nm digital CMOS. Flexibility was incorporated by providing various code rates and modulation schemes to adjust to varying channel conditions. Based on previous trade-off studies, flexible building blocks were carefully designed to cause as little area penalty as possible. The chip runs down to a minimal co
