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OBJECTIVES: Acrylate-styrene copolymer polish has been used to protect the surface of linoleum flooring since the 1960s. Problems with powdering of floor polish were observed at an early stage. In a secondary school in Linkoping, Sweden, this phenomenon occurred in the winter of 1994-1995 and the pupils frequently reported irritative symptoms from the eyes and airways. This study was undertaken to

Popular Abstract in Swedish Avhandlingen behandlar kapacitet i cirkulationsplatser. Kapaciteten för ett körfält i en tillfart kan beräknas med teorin för kritiska tidsavstånd. Denna bygger på interaktioner mellan fordon med företräde (överordnade fordon) och fordon som skall lämna företräde (underordnade fordon). Det kritiska tidsavståndet är det minsta tidsavstånd mellan två överordnade fordon soProblem: The thesis deals with the capacity of two-lane roundabouts and with vehicle-vehicle interactions there. Method: The interactions and the corresponding capacity are modelled by gap-acceptance theory. Various components of this theory are discussed, models for headways in the multi-lane case and for the estimation of critical gaps for the two major streams being developed and being applied

In a web service environment, such as Parlay X, contracts are agreed between the involved participants to guarantee a reasonable measure of Quality of Service (QoS). A common policy adopted is for contracts to involve only one parameter which places a limit on the number of incoming operation calls. This constraint is expressed as the maximum number of operation calls per second that a source is a

The enzymatic synthesis of dipeptide units of the d-d-configuration in aqueous media, catalysed by muramoyl-pentapeptide carboxypeptidase (E.C.3.4.17.8), is described. Ac-l-Lys(Ac)-d-Ala-d-Lac-OH and Ac-d-Ala-OMe were used as acyl-components. Neutral, basic, and hydrophobic amino acids acting as nucleophiles were incorporated. The enzyme is stereospecific in that only the d-enantiomers of amino ac

Activation of AMP-activated protein kinase (AMPK) by exercise and metformin is beneficial for the treatment of type 2 diabetes. We recently found that, in cultured cells, the LKB1 tumor suppressor protein kinase activates AMPK in response to the metformin analog phenformin and the AMP mimetic drug 5-aminoimidazole-4-carboxamide-1-beta-D-ribofuranoside (AICAR). We have also reported that LKB1 activ

Preliminary results are reported from a study of speech gestures analyzed from an x-ray motion film of a southern Swedish speaker. The gestures analyzed here are taken from one utterance from the film. Frame-by-frame analysis of the presence or absence of articulator movement provided information about temporal coordination & segmental simultaneity & sequencing. The data suggest challenges

Popular AbstractI den här avhandlingen behandlas dels hur själva organiseringens processer kan gestalta sig, dels innehållet i några av de studerade processerna. Det empiriska materialet i studien har hämtats från fyra industriföretag som alla under 1990-talets första år genomförde försök att utveckla en mera processorienterad arbetsorganisation. Tre av företagen ingår i globala koncerner. Det fjäThe focus of this dissertation is on organizational change in four industrial corporations. A special emphasisis placed upon the symbolic and rhetorical aspects when changing organizations. Main concepts in the study are symbolic management and management of meaning. Two main areas are discussed in the dissertation. Firstly, how the new organizational meaning is constructed or produced. Secondly,

Protein stabilization was achieved through in vivo screening based on the thermodynamic linkage between protein folding and fragment complementation. The split GFP system was found suitable to derive protein variants with enhanced stability due to the correlation between effects of mutations on the stability of the intact chain and the effects of the same mutations on the affinity between fragment

OBJECTIVES: To determine the serum concentration of mannan-binding lectin (MBL), a component of the innate immune system, in women with a history of recurrent vulvovaginal candidiasis (RVVC) and to correlate the result to candida-cultures, contraceptive use, if any, and to different antifungal therapies. STUDY DESIGN: Twenty-nine women with a history of RVVC were investigated. Cultures of vulvar a

While the distinction between manufacturing and services becomes increasingly blurred to some observers, we find, using a panel of Swedish firms, clear evidence that foreign sales (exports) are more important than domestic sales for stimulating R&D. This is particularly clear for manufacturing and this importance of foreign sales has increased over time, simultaneous to an opening up of the Sw

To assess satisfaction with life as a whole and with ten domains of life satisfaction in Swedish persons with late effects of polio, to describe the relationship with sex, age, marital status, use of mobility aids and self-perceived needs of instrumental support, and to compare the level of life satisfaction with a Swedish reference sample. A cross-sectional study of 160 persons with verified late

Several applications, such as risk assessment within REACH or drug discovery, require reliable methods for the design of experiments and efficient testing strategies. Keeping the number of experiments as low as possible is important from both a financial and an ethical point of view, as exhaustive testing of compounds requires significant financial resources and animal lives. With a large initial

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The sound transmission in double walls at low frequencies is studied using a detailed geometric model, based on FEM. The model simulates the experiments carried out to determine the sound reduction index of the wall. The wall properties effect on the sound transmission loss is investigated and also how the sound reduction is affected by the dimensions of the connecting rooms.