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Phosphonation of polysulfones via lithiation and reaction with chlorophosphonic acid esters

A noncatalytic route for the phosphonation of polysulfones was established in which lithiated sites on polysulfones were reacted with an excess of chlorophosphonic acid esters through an SNP(V) mechanism. Both the bisphenol A and biphenyl sulfone segments of the polysulfone main chain were modified according to whether brominated polysulfone or pristine polysulfone was used. Up to 50% of the repea

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This paper presents the methodology and the main results of the SIGTEBAL project “GIS for the design, management, analysis and planning of school routes in the Balearic Islands” financed by the Balearic Government to a team of the University of the Balearic Islands. It is an example of application of GIS to the field of transport (GIS-t). The SIGTEBAL begins with the design of a geographic data ba

The impact of the use of multiple risk indicators for fracture on case-finding strategies: a mathematical approach

The value of bone mineral density (BMD) measurements to stratify fracture probability can be enhanced in a case-finding strategy that combines BMD measurement with independent clinical risk indicators. Putative risk indicators include age and gender, BMI or weight, prior fracture, the use of corticosteroids, and possibly others. The aim of the present study was to develop a mathematical framework

Sonography in total hip arthroplasty

Purpose: The distance between the anterior surface of the neck of the prosthetic stem and the anterior joint capsule, the "capsular distance", is increased in total hip arthroplasty (THA) with synovitis. We evaluated the potential of ultrasonography (US) in measuring the "capsular distance" in THA hips one year after insertion. Materials and Methods: We compared the measurements of the capsular di

Evidens för trombosprofylax till medicinpatienter med hög risk

Venous thromboembolism (VTE) is a common complication of hospitalization, and can result in substantial morbidity and treatment cost. In orthopedic and general surgery, it is common practice to use low-molecular-weight heparin as a thromboprophylaxis. For medical patients, however, the issue of prophylaxis remains under debate. Data from three recent large randomized studies of medical patients at

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Popular Abstract in Swedish Denna avhandling bygger på en korpus (Corpus Jabet) av intervjuer som genomfördes med vuxna talare 1996 i Abidjan, Elfenbenskustens största stad och ekonomiska medelpunkt. Informanterna har delats in i tre grupper efter sociolingvistiska kriterier, där skolgång med franska som undervisningsspråk är det väsentligaste: ingen eller ytterst lite skolgång (Grupp A1), avslutaThis study examines the omission of the article and of the subject pronoun in the spoken French of Abidjan, economic capital of Côte d'Ivoire. The occurrence of the bare nouns (NSDs for Noms Sans Déterminant) and subject-less tensed verbs (SujNuls for Sujets Nuls) in question is contrary to common use in standard as well as ordinary French. The findings made show that both kinds of omissions are

Cancer in persons working in dry cleaning in the Nordic countries

U.S. studies have reported an increased risk of esophageal and some other cancers in dry cleaners exposed to tetrachloroethylene. We investigated whether the U.S. findings could be reproduced in the Nordic countries using a series of case-control studies nested in cohorts of laundry and dry-cleaning workers identified from the 1970 censuses in Denmark, Norway, Sweden, and Finland. Dry-cleaning wor

Passive extraction and clean-up of phenoxy acid herbicides in samples from a groundwater plume using hollow fiber supported liquid membranes

Hollow fiber supported liquid membranes were applied for the passive extraction of phenoxy acid herbicides from water samples. Polypropylene hollow fiber membranes (240 mu m i.d., 30 mu m wall thickness, 0.05 mu m pore size, 30 cm length) were impregnated with 2.0% tri-n-octylphosphine oxide (TOPO) in di-n-hexyl ether in the pores of the fiber wall to form a liquid membrane. They were then filled

Net sulphur mineralization in forest soils as influenced by different lime application rates

Long-term effects of liming on net sulphur mineralization in coniferous forest 0 horizons were studied in three laboratory experiments by an open incubation technique, in which net sulphur mineralization was estimated from the accumulated SO42- leaching during the incubation period. Soil from two Swedish field experiments was used; Hasslov (56degrees24'N, 13degrees00'E) and Nordiden (64degrees21'N

Venture capitalists' Decision to Syndicate

Financial theory, access to deal flow, selection, and monitoring skills are used to explain syndication in venture capital firms in six European countries. In contrast with U.S. findings, portfolio management motives are more important for syndication than individual deal management motives. Risk sharing, portfolio diversification, and access to larger deals are more important than selection and m

Genetically modified animals in research : an analysis of applications submitted to ethics committees on animal experimentation in Sweden

The use of genetically modified animals in biomedical research has increased during recent years and its ethical aspects have been subject to academic discussion. In order to make this discussion more concrete, we analyzed applications submitted to animal ethics committees in Sweden in 2002. The aim was to investigate the researchers’ statements concerning the production and use of genetically mod