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MR appearance of the temporal evolution and resolution of spontaneous osteonecrosis of the knee : a case report

Spontaneous osteonecrosis of the knee (SONK) is a feared condition of unknown cause, in its classic form appearing in the medial femoral condyle in middle-aged or elderly subjects. Diagnosis with radiography is notoriously difficult with a long latency before typical changes appear. Magnetic resonance imaging (MRI) is regarded as a diagnostic tool with the possibility to give an earlier diagnosis

Neutron-skin effect and centrality dependence of high-pT observables in nuclear collisions

We report on our studies of the neutron-skin effects in high-pT observables at the LHC. We study the impact of the neutron-skin effect on the centrality dependence of inclusive direct photon, highpT hadron and W± production in nuclear collisions at the LHC. The neutron-skin effect refers to the observation that in spherical heavy nuclei, the tail of the neutron distribution extends farther than th

Dielectric spectroscopy of ionic microgel suspensions

The determination of the net charge and size of microgel particles as a function of their concentration, as well as the degree of association of ions to the microgel backbone, has been pursued in earlier studies mainly by scattering and rheology. These methods suffer from contributions due to inter-particle interactions that interfere with the characterization of single-particle properties. Here w

Bone microarchitecture in ankylosing spondylitis and the association with bone mineral density, fractures, and syndesmophytes

INTRODUCTION: Osteoporosis of the axial skeleton is a known complication of ankylosing spondylitis (AS), but bone loss affecting the peripheral skeleton is less studied. This study on volumetric bone mineral density (vBMD) and bone microarchitecture in AS was conducted to compare peripheral vBMD in AS patients with that in healthy controls, to study vBMD in axial compared with peripheral bone, and

Terrorism, Belief Formation, and Residential Integration : Population Dynamics in the Aftermath of the 2004 Madrid Terror Bombings

In this article, we study the effects of the 2004 terrorist bombings in Madrid on ethnic segregation in Spain. Using large-scale Spanish register data consisting of information on 5.4 million international migration events on a monthly basis and 13.9 million intermunicipal migration events, of which 3.8 million events concern the foreign-born population’s internal migration within Spain, the analy

Brittle Failure Modes in Nailed Steel Plate Connections

This paper deals with theoretical and experimental investigations of nailed steel plate connections. For the experimental part, a total of 43 laboratory tests on connections loaded in tension parallel to the grain are reported. The paper deals also with finite element analysis of the connection, presenting a study on the 3D stress distributions within the wood member and a study of the progressive

Real-time sharing of gaze data between multiple eye trackers : evaluation, tools, and advice

Technological advancements in combination with significant reductions in price have made it practically feasible to run experiments with multiple eye trackers. This enables new types of experiments with simultaneous recordings of eye movement data from several participants, which is of interest for researchers in, e.g., social and educational psychology. The Lund University Humanities Laboratory r

Day-to-Day Living Expenses and Mental Health

We use rich longitudinal survey and register data on Swedish individuals to examine the relationship between financial strain and mental health. Specifically, we consider the longitudinal relationships between payment difficulties and subjective (self-reported anxiety) as well as objective (psychiatric drug use) measures of mental ill-health. Among previously healthy individuals, payment difficult

Art ventures as hybrid organisations: Tensions and conflicts relating to organisational identity

Research indicates that hybrid ventures face more complexchallenges than other ventures, due to multiple institutional logics. Institutionallogics theory suggests that this is due to different institutional backgrounds thatinfluence actor perspectives and expectations on decision making authority andventure identity, which in turn result in tensions and possible conflicts,especially over time. The

Optimized physical broadcast channel reception

A receiver receives information from a physical broadcast channel signal, wherein the receiver includes a blind processing and decoding unit that utilizes a hypothesis about how many transmit antennas were used to transmit the signal. Received signal characteristics are detected that indicate how many transmit antennas were used. Each transmit antenna hypothesis in a stored list represents how manA receiver receives information from a physical broadcast channel signal, wherein the receiver includes a blind processing and decoding unit that utilizes a hypothesis about how many transmit antennas were used to transmit the signal. Received signal characteristics are detected that indicate how many transmit antennas were used. Each transmit antenna hypothesis in a stored list represents how man

Efficiently Correcting Matrix Products

We study the problem of efficiently correcting an erroneous product of two n×nn×n matrices over a ring. Among other things, we provide a randomized algorithm for correcting a matrix product with at most k erroneous entries running in O~(n2+kn)O~(n2+kn) time and a deterministic O~(kn2)O~(kn2)-time algorithm for this problem (where the notation O~O~suppresses polylogarithmic terms in n and k).

Identity shifts and conflict transfromation - Probing the Israeli history debates

This article investigates into narratives of Israeli history and identity and ways in which those can be understood as linked to the transformation of intractable conflicts. By using the case of Israeli New History, this study elaborates on the interplay between master and counter commemorative narratives of identity and history, and the potential impact of that interaction when it comes to the de