The observed errors in the position of the implanted prosthesis can be due to a number of potential causes. One of these is the potential error during execution of the bone cuts. However, there is only minimal information on this in the current literature. The amount of cutting errors in forty consecutive total knee replacements was reported. All the operations were done by the same surgeon. Th...

Objective—To compare the reliability of quantitative measurement of minimum hip joint space with a qualitative global assessment of radiological features for estimating the prevalence of primary osteoarthritis (OA) of the hip in colon radiographs. Methods—All colon radiographs from patients aged 35 or older, taken at three diVerent radiographic departments in Iceland during the years 1990–96, w...

Activity of rheumatoid arthritis (RA) can be evaluated using several scoring scales based on clinical features. The most widely used one is the Disease Activity Score involving 28 joint counts (DAS28) for which cut-offs were proposed to help physicians classify patients. However, inaccurate scoring can lead to inappropriate medical decisions. In this article some methodological issues in the de...

Abstract As onshore installation capacity is limited, the increase in number of offshore wind turbines (OWT) a major goal. In that connection, OWTs continuously size and weight demand adequate foundations concepts like monopiles or tripods. These components are typically manufactured from welded mild steel plates with thickness up to 200 mm. The predominant welding technique submerged arc (SAW)...

Korea implemented its Antarctic research program in 1987 and diversified to the Arctic in 2002. Since the development of the Joint Committee on Antarctic Data Management, Korea has acknowledged the importance of data management. The launch of the Korea Polar Research Institute in 2004 also saw establishment of the Korea Polar Data Center (KPDC), which outlines and executes a Polar Data Manageme...

This paper addresses the problem of decoding and precoding in the K-user MIMO interference channels. At the receiver side, a joint decoding of the interference and the desired signal is able to improve the receive diversity order. At the transmitter side, we introduce a joint linear precoding design that maximizes the joint cut-off rate, known as a tight lower bound on the joint mutual informat...

Curve sawing is a primary log breakdown process that incorporates gang-saw technology to allow two-sided cants from logs with sweep to be cut parallel to the log surface or log axis. Since curve-sawn logs with sweep are cut along the grain, the potential for producing high quality straight-grain lumber and cants increases, and strength, stiffness, and dimensional stability are maximized. Presen...

One of the most common debates in discussing the technique of isolated subtalar joint arthrodesis is whether a single point of fixation is adequate to achieve joint fusion. The single screw technique places a fixation device in line with the subtalar joint axis of motion. Regardless of whether the screw is run up from the plantar calcaneus or down from the talar neck, rotational movement can oc...