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Unless P = NP there is no polynomial time approximation scheme (PTAS) for the problem of finding, for a graph G, the largest h such that the complete graph K-h is a minor of G. (C) 2008 Elsevier B.V. All rights reserved.
BACKGROUND: The occurrence of osteoarthritis (OA), associated meniscal injuries, meniscectomy, and patient-related measures for patients treated nonoperatively after anterior cruciate ligament (ACL) injuries have not been well described in the literature in terms of natural history. HYPOTHESIS: Patients with ACL injury can achieve a low occurrence of tibiofemoral OA and good knee function when tre
A new calculation of RdAu has been performed using the 2003 d+Au data and the higher-statistics 2005 p+p data. These nuclear modification factors are compared to calculations using nuclear-modified PDFs and a J/ψ breakup cross section is extracted. These values are then used to project the cold nuclear matter effects in Au+Au collisions. Additionally, a more data-driven projection is performed.
There is a growing awareness that lignocellulose will be a major raw material for production of both fuel and chemicals in the coming decades-most likely through various fermentation routes. Considerable attention has been given to the problem of finding efficient means of separating the major constituents in lignocellulose (i.e., lignin, hemicellulose, and cellulose) and to efficiently hydrolyze
Background. Software engineering is in search for general principles that apply across contexts, for example to help guide software quality assurance. Fenton and Ohlsson presented such observations on fault distributions, which have been replicated once. Objectives.We intend to replicate their study a second time in a new environment. Method.We conducted a close replication, collecting defect data
Abstract is not available
Background Granulomatosis with polyangiitis (Wegener's) (GPA) and microscopic polyangiitis (MPA) are subgroups of anti-neutrophil cytoplasmic antibody (ANCA)-associated vasculitis (AAV) defined historically by clinical and histological features. GPA and MPA are heterogeneous entities with overlapping phenotypes. To identify novel subgroupings, cluster analysis was used to explore the phenotypic sp
Popular Abstract in Swedish Kroniska ländryggsbesvär är en ekonomisk belastning för sjukvården och samhället i stort, och ger framför allt ett personligt lidande för den drabbade. Nästan alla (75-80 %) kommer att ha åtminstone en episod med ryggbesvär någon gång under sin livstid. Hälften av dessa kommer att ha utstrålande bensmärtor och ofta är besvären ett symtom på ischias (nervrotspåverkan). MRadicular pain is in the majority of cases caused by a disc herniation with a coexisting inflammation. It is characterized by positive neural tension tests, such as the Slump test, and by decreased range of motion (ROM) in the straight leg raising test (SLR) and lumbar flexion (Fingertip-to-floor test[FTF]). This may suggest that improvement in ROM correlates to reduction of self-reported disabili
People may engage in protest activity either because of collective incentives or selective incentives, or a combination of them. In this study we focus on the selective incentives part of the calculus of political participation, particularly the impact of the social dimension. We hypothesize that people will participate in demonstrations or other forms of protest, to a higher extent if they ar
Introduction. This study addresses the need to further contextualize research on well-being (e.g., Kjell, 2011) in terms of cross-cultural aspects of personality traits among adolescents and by examining two different conceptualizations of well-being: subjective well-being (i.e., life satisfaction, positive and negative affect) and psychological well-being (i.e., positive relations with others, en
Abstract is not available
BACKGROUND: MicroRNAs are small non-coding RNAs involved in the regulation of gene expression on a posttranscriptional level. These regulatory RNAs have been implicated in numerous cellular processes and are further deregulated in different cancer types, including breast cancer. MiR-92a is part of the miR-17∼92 cluster, which was first reported to be linked to tumourigenesis. However, little is kn
Processed food and eating out of the home are increasing phenomena, which presents new business opportunities for food manufacturers. However, the new food products require increased quality and safety, and thereby a more controlled distribution. The overall purpose of the research presented in this article is to describe the food supply chain from a critical context point of view in order to high
Popular Abstract in Swedish Den pågående globaliseringen skapar ett behov av ökad kommunikationskompetens bland svenskar som arbetar ute i världen. Denna studie baseras på beskrivningar av de kommunikationsprocesser som används av svenskar, när de möter icke-svenskar på yrkets vägnar vid arbete utanför Sverige. Beskrivningarna baseras på intervjuer. Studien är inriktad på tre områden. De kommunikaGlobalization creates a need for increased communication competence among Swedes working on the global arena. This study is based on reports of communication processes used by Swedes when interacting professionally with non-Swedes. The reports are derived from interviews. The study focuses on three areas. The communication strategies developed by the respondents for intercultural communication. Th
