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Exercise therapy versus arthroscopic partial meniscectomy for degenerative meniscal tear in middle aged patients : Randomised controlled trial with two year follow-up

Objective: To determine if exercise therapy is superior to arthroscopic partial meniscectomy for knee function in middle aged patients with degenerative meniscal tears. Design: Randomised controlled superiority trial. Setting: Orthopaedic departments at two public hospitals and two physiotherapy clinics in Norway. Participants: 140 adults, mean age 49.5 years (range 35.7-59.9), with degenerative m

When Baby Brother is watching: How civilians surveil control agents in the new era

Today, film clips and still pictures captured by civilians with their mobile phones are increasingly used as evidence to prove specific accounts of events. Distributed on news media, YouTube or other social media, these film clips can also expose misconduct by control agents such as police officers and security guards. The aim of this paper is to analyse three cases of such sousveillance that have

The EMBLA survey - metal-poor stars in the Galactic bulge

Cosmological models predict the oldest stars in the Galaxy should be found closest to the centre of the potential well, in the bulge. The Extremely Metal-poor BuLge stars with AAOmega survey (EMBLA) successfully searched for these old, metal-poor stars by making use of the distinctive SkyMapper photometric filters to discover candidate metal-poor stars in the bulge. Their metal-poor nature was the

The first Neptune analog or super-earth with a Neptune-like orbit : MOA-2013-BLG-605LB

We present the discovery of the first Neptune analog exoplanet or super-Earth with a Neptune-like orbit, MOA-2013-BLG-605Lb. This planet has a mass similar to that of Neptune or a super-Earth and it orbits at 9 ∼ 14 times the expected position of the snow line, a snow, which is similar to Neptune's separation of 11 a snow from the Sun. The planet/host-star mass ratio is q = (3.6 ± 0.7) × 10-4 and

Criminality, incarceration and control in Nordic Island societies: The Faroe Islands, The Åland Islands, Iceland and Greenland.

There are large differences between the four Nordic island societies in culture, and also on how they have achieved autonomy/independence and to what extent this is implemented. They have more characteristics in common than they have with the remaining Nordic countries: Small populations that live in secluded island societies, geographically isolated from other countries; rough living conditions a

Socioeconomic inequalities in knee pain, knee osteoarthritis, and health-related quality of life : a population-based cohort study in southern Sweden

Objectives: To determine socioeconomic inequalities in frequent knee pain (FKP), knee osteoarthritis (OA), and associated health-related quality of life (HRQoL) in Sweden. Method: In 2007 a postal questionnaire about knee pain was sent to a random sample of 10 000 residents of Malmö, Sweden (7402 individuals responded). Subjects reporting pain with duration ≥ 4 weeks in one or both knees in the pa

Hydrogen bonds, hydrophobicity forces and the character of the collapse transition

We study the thermodynamic behavior of a model protein with 54 amino acidsthat is designed to form a three-helix bundle in its native state. The model contains three types of amino acids and five to six atoms per amino acid, and has the Ramachandran torsion angles as its only degrees of freedom.The force field is based on hydrogen bonds and effective hydrophobicity forces. We study how the charact

Three-helix-bundle protein in a Ramachandran model

We study the thermodynamic behavior of a model protein with 54 amino acids that forms a three-helix bundle in its native state. The model contains three types of amino acids and five to six atoms per amino acid and has the Ramachandran torsional angles phi(i), psi(i) as its degrees of freedom. The force field is based on hydrogen bonds and effective hydrophobicity forces. For a suitable choice of

Design of sequences with good folding properties in coarse-grained protein models

BACKGROUND: Designing amino acid sequences that are stable in a given target structure amounts to maximizing a conditional probability. A straightforward approach to accomplishing this is a nested Monte Carlo where the conformation space is explored over and over again for different fixed sequences; this requires excessive computational demand. Several approximate attempts to remedy this situation

Tissue reaction and material biodegradation of a calcium sulfate/apatite biphasic bone substitute in rat muscle

Background/Objective: A biphasic ceramic bone substitute consisting of calcium sulfate and hydroxyapatite has been reported to give good clinical outcome regarding bone regeneration and may serve as a carrier for antibiotics in the treatment of bone infections. Often, the overlying muscle is in direct contact with the synthetic graft. The dissolving bone substitute induces inflammation, which may

Dose management in conventional nuclear medicine imaging and PET

This review of the basic concepts of dose management in conventional nuclear medicine imaging and positron emission tomography focuses on methods for dose assessment, difficulties with image quality evaluation, need for clear image quality criteria and observer performance studies, studies on representative groups of patients contra individual patients, clinically applicable methods for dose reduc

Blind Signal Separation using Overcomplete Subband Representation

This paper discusses a multirate filterbank-based extended infomax algorithm for real-world signal separation, i.e., convolved mixtures separation. Since convolution in the time domain corresponds to instantaneous mixing in the frequency domain, polyphase subband projection naturally becomes an efficient alternative to the Fourier transform based frequency domain approach. The online implementatio

Filter Bank Design for Subband Adaptive Microphone Arrays

This paper presents a new method for the design of oversampled uniform DFT-filter banks for the special application of subband adaptive beamforming with microphone arrays. Since array applications rely on the fact that different source positions give rise to different signal delays, a beamformer alters the phase information of the signals. This in turn leads to signal degradations when perfect rec

Requirements engineering in open innovation

During the last two decades a slow but steady change of external factors has set-up new conditions affecting the way in how software producing firms create and leverage innovations. Firms now need to look outside of their boundaries and start interacting with the open environment that encompasses them in order to stay innovative and keep a competitive advantage. To facilitate this shift Requiremen