Examines the history of coffee drinking. Describes the constituents of coffee and its physiological effects on the drinker. Reviews the research done in the past on caffeine’s effects on health. Recommends a safe level of consumption at between 300-400mg of caffeine per day which translates to four or five cups of average strength

BACKGROUND AND PURPOSE Coating of acetabular revision implants with hydroxyapatite (HA) has been proposed to improve ingrowth and stability. We investigated whether HA coating of revision cups can reduce the risk of any subsequent re-revision. METHODS We studied uncemented cups either with or without HA coating that were used at a primary acetabular revision and registered in the Swedish Hip ...

BACKGROUND Cementless hip cups need sufficient primary tilting stability to achieve osseointegration. The aim of the study was to assess differences of the primary implant stability in osteoporotic bone and in bone with normal bone density. To assess the influence of different cup designs, two types of threaded and two types of press-fit cups were tested. METHODS The maximum tilting moment fo...

PURPOSE OF THE STUDY To present the results of primary total hip arthroplasty (THA) with use of the hemispheric threaded Ultima cup at 8.5-year follow-up. MATERIAL Between 1996 and 1999, a total of 40 Ultima acetabular components were used in 33 patients (15 men and 18 women). The average age at the time of surgery was 61.2 years (range, 45 to 71). By the end of 2006, 36 cups were assessed. I...

© 2016 The Author(s). Published by Taylor & Francis on behalf of the Nordic Orthopedic Federation. This is an Open Access article distributed under the terms of the Creative Commons Attribution-Non-Commercial License (https://creativecommons.org/licenses/by-nc/3.0) DOI 10.1080/17453674.2016.1248315 Background and purpose — Porous tantalum cups have been introduced as an alternative to various r...

In this paper we present the concept of inferred contextual user profiles (CUPs) which extends the traditional user profile definition by describing the user in a given situation, or context. The approach is evaluated in the scope of movie recommendation. In our evaluation, we infer two CUPs for each user, and use only one of the profiles, instead of the full user profile for recommending movie...