Sökresultat

Filtyp

Din sökning på "*" gav 530058 sökträffar

Red Meat, Dietary Nitrosamines, and Heme Iron and Risk of Bladder Cancer in the European Prospective Investigation into Cancer and Nutrition (EPIC)

Background: Previous epidemiologic studies found inconsistent results for the association between red meat intake, nitrosamines [NDMA: N-nitrosodimethylamine, and ENOC (endogenous nitroso compounds)], and the risk of bladder cancer. We investigated the association between red meat consumption, dietary nitrosamines, and heme iron and the risk of bladder cancer among participants of the European Pro

20 GHz gated tunnel diode based UWB pulse generator

We demonstrate a pulse generator based on a GaAs-AlGaAs gated resonant tunneling diode (RTD). This is realized by integrating a third terminal, the gate, into the current path of a RTD. The gate consists of a 200 A thick tungsten grating buried 300 A above the RTD. This implementation allows for control of the current through the RTD. By integrating this device in parallel with an on-chip inductan

Exploring inter-rater reliability and measurement properties of environmental ratings using kappa and colocation quotients

Background: Available evidence suggest that perceptions or ratings of the neighborhood, e.g. as being green, walkable or noisy, are important for effects on health and wellbeing, also after controlling for objective measures of identical or similar features. When evaluating effects of the perceived environment, it is important that measurement properties and the reliability of the environmental ra

Evolution of novel wood decay mechanisms in Agaricales revealed by the genome sequences of Fistulina hepatica and Cylindrobasidium torrendii

Wood decay mechanisms in Agaricomycotina have been traditionally separated in two categories termed white and brown rot. Recently the accuracy of such a dichotomy has been questioned. Here, we present the genome sequences of the white-rot fungus Cylindrobasidium torrendii and the brown-rot fungus Fistulina hepatica both members of Agaricales, combining comparative genomics and wood decay experimen

The incidence of acute gastrointestinal illness in Sweden

Aims: The aim of this study was to estimate the self-reported domestic incidence of acute gastrointestinal illness in the Swedish population irrespective of route of transmission or type of pathogen causing the disease. Previous studies in Sweden have primarily focused on incidence of acute gastrointestinal illness related to consumption of contaminated food and drinking water. Methods: In May 200

Oncogenic Pathways and Molecular Prognostics in Neuroblastoma

Neuroblastoma is an embryonal malignancy that accounts for 15% of all cancer related deaths amongst children. Although the overall survival of patients has been improving over the last decades, the high-risk neuroblastoma patients have a survival rate of

New picture of jet quenching dictated by color coherence

We propose a new description of the jet quenching phenomenon observed in nuclear collisions at high energies in which coherent parton branching plays a central role. This picture is based on the appearance of a dynamically generated scale, the jet resolution scale, which controls the transverse resolution power of the medium to simultaneously propagating color probes. Since from the point of view

Många allvarliga brott mot regler när läkemedel marknadsförs

Läkemedelsindustrin är en viktig källa till läkemedelsinformation. Industrins marknadsföring kan dock leda till användning av icke-ändamålsenliga eller onödigt dyra läkemedel [1]. En ny studie, publicerad i PLoS Medicine, har analyserat marknadsföring i Sverige och Storbritannien 2004–2012 samt de egenåtgärdssystem som industrin i de båda länderna inrättat för tillsynen av marknadsföringen [2]. Sl

Redefining suicidal behaviour – Rating scales and biomarkers

Popular Abstract in Swedish Introduktion I Sverige dör i genomsnitt 4 personer i självmord dagligen vilket gör detta till en av de absolut vanligaste dödsorsakerna bland unga människor. Varje självmord föregås av ofattbart mänskligt lidande och innebär en tragedi för de anhöriga. Antalet självmordsförsök som kommer till vårdens kännedom är cirka 9000 varje år, men det finns ett stort mörkertal. BaRisk assessment of suicidal behaviour is one of the most important tasks in clinical psychiatry and a major determinant of subsequent care and treatment selections. To date, suicide risk assessment is based solely on clinical evaluations, which inevitably leads to subjective interpretations and decisions by the psychiatrist. In order to find more robust instruments in the evaluation of suicidality

On the Analytical Representation of Chip Area and Tool Geometry when Oblique Turning with Round Tools. Part 2: Variation of Tool Geometry along the Edge Line

This paper presents the models, analytical equations and results of analysis for determination of major cutting edge, orthogonal and normal clearance and rake angles, and cutting edge inclination angle. The analysis is carried for variable side and back rake angles used by the tool manufacturers and a corresponding variation of the geometry along the edge line for the case of round tools. The infl

Search for contact interactions in dilepton events from pp collisions at root s=7 TeV with the ATLAS detector

This Letter presents a search for contact interactions in the dielectron and dimuon channels using data from proton-proton collisions produced by the LHC at,root s = 7 TeV and recorded by the ATLAS detector. The data sample, collected in 2011, corresponds to an integrated luminosity of 1.08 and 1.21 fb(-1) in the e(+)e(-) and mu(+)mu(-) channels, respectively. No significant deviations from the st

Multilingual students' self-reported use of their language repertoires when writing in English

Recent research suggests that multilingual students tend to use their complete language repertoires, particularly their L1, when writing in a non-native language (e.g. Cenoz & Gorter 2011; Wang 2003). While there is some international research on the L2 and L3 writing process among bilinguals, the L2/L3writing process of bilingual and multilingual individuals in the Swedish context remains une

Tumour-specific HMG-CoAR is an independent predictor of recurrence free survival in epithelial ovarian cancer

Background: Our group previously reported that tumour-specific expression of the rate-limiting enzyme in the mevalonate pathway, 3-hydroxy-3-methylglutharyl-coenzyme A reductase (HMG-CoAR) is associated with more favourable tumour parameters and a good prognosis in breast cancer. In the present study, the prognostic value of HMG-CoAR expression was examined in tumours from a cohort of patients wit

Echoes from the Past: A Healthy Baltic Sea Requires More Effort

Integrated sediment multiproxy studies and modeling were used to reconstruct past changes in the Baltic Sea ecosystem. Results of natural changes over the past 6000 years in the Baltic Sea ecosystem suggest that forecasted climate warming might enhance environmental problems of the Baltic Sea. Integrated modeling and sediment proxy studies reveal increased sea surface temperatures and expanded sea

Investigation of flue-gas treatment with O-3 injection using NO and NO2 planar laser-induced fluorescence

Direct ozone (O-3) injection is a promising flue-gas treatment technology based on oxidation of NO and Hg into soluble species like NO2, NO3, N2O5, oxidized mercury, etc. These product gases are then effectively removed from the flue gases with the wet flue gas desulfurization system for SO2. The kinetics and mixing behaviors of the oxidation process are important phenomena in development of pract