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We present a generic scheme for approximating NP-hard problems on graphs of treewidth k = omega (log n). When a tree-decomposition of width l is given, the scheme typically yields an l / log n-approximation factor; otherwise, an extra log k factor is incurred. Our method applies to several basic subgraph and partitioning problems, including the maximum independent set problem.

A recent report estimated the breast cancer risks in carriers of the three Ashkenazi founder mutations to be higher than previously published estimates derived from population based studies. In an attempt to confirm this, the breast and ovarian cancer risks associated with the three Ashkenazi founder mutations were estimated using families included in a previous meta-analysis of populatrion based

The interaction of blood coagulation factor X and its Gla-containing fragments with negatively charged phospholipid membranes composed of 25 mol% phosphatidylserine (PtdSer) and 75 mol% phosphatidylcholine (PtdCho) was studied by surface plasmon resonance. The binding to 100 mol% PtdCho membranes was negligible. The calcium dependence in the membrane binding was evaluated for intact bovine factor

Breeding synchrony is hypothesised to influence the occurrence and frequency of extra-pair fertilisations (EPFs) in birds irrespective of the social mating system. The two proposed hypotheses make opposite predictions. (1) Synchronous breeding leads to a lower frequency of EPFs because males face a trade-off between mate guarding and obtaining additional matings via extra-pair copulations (EPCs) (

Conclusions. Preoperative gentamicin in combination with vestibular 'prehab' offers a possibility to reduce postoperative malaise and speed up recovery and may be used for patients undergoing such surgery when there is remaining vestibular function. Objectives. Removal of pontine angle tumours in a patient with remaining vestibular function causes symptoms of acute vestibular loss. A simultaneous

For people with learning disabilities care in institutions has been replaced by a life in community settings e.g. group homes, where a number of persons (4-5) are living with staff support. My case-studies cover three elderly and three more lately produced such units as well as a ward in a nursing home. Data were gathered through participant observations and semistructured interviews with staff an

This article treats the New Religious Movement (NRM) Salamullah, using Internet and social media for the dissemination of its religious ideas.

Artikel om Hollywoods tidiga filmbolag och framväxten av den moderna amerikanska filmindustrin.

The virological efficacy of a syringe/needle exchange program was evaluated in a cohort incidence study. Of 698 intravenous drug users (IVDUs) initially recruited, 15 (2.1%) were HIV-positive at baseline. Adequate follow-up was possible in 515 (74%) and showed no new cases of HIV infection during a median of 31 months. Most IVDUs had been previously exposed to HBV (anti-HBc-positive 70.1%) and HCV

Driving patterns (i.e., speed, acceleration and choice of gears) influence exhaust emissions and fuel consumption. The aim here is to obtain a better understanding of the variables that affect driving patterns, by determining the extent they are influenced by street characteristics and/or driver-car categories. A data set of over 14,000 driving patterns registered in actual traffic is used. The re

The aim of this paper is to provide a systematic review of the evidence of the impact on economic growth of investments in maternal--newborn health (MNH). The methodology used for the review includes a systematic search for published literature in relevant electronic databases. In the paper, we review five studies: four empirical and one theoretical. One of the empirical papers measures health by

Structural equation modeling on questionnaire data showed that different kinds of prejudice (concerning sexual orientation, ethnicity, gender, and impaired develop­ment) can be represented as a general prejudice factor. Specific variability related to classical and modern prejudice only increased model fit marginally. Several causal models of the relation between key individual difference variable

We have investigated the electronic structure of excitons in InP quantum dots in GaInP. The exciton is theoretically expected to have four states. Two of the states are allowed to optically decay to the ground ( vacuum) state in the dipole approximation. We see these two lines in photoluminescence (PL) experiments and find that the splitting between the lines ( the fine structure splitting) is 150

Several stainless steel based surfaces with different properties were evaluated according to their fouling behaviour for different dairy products under different conditions. Surface properties were obtained by the following modification techniques: SiF3+, MoS22+ and TiC ion implantation; diamond-like carbon (DLC) sputtering; DLC, DLC-Si-O and SiOx, plasma enhanced chemical vapor Deposition (PECVD)