SwePub
Sök i SwePub databas

  Utökad sökning

Träfflista för sökning "WFRF:(Carlsson Fredrik 1972 ) "

Sökning: WFRF:(Carlsson Fredrik 1972 )

  • Resultat 21-30 av 42
Sortera/gruppera träfflistan
   
NumreringReferensOmslagsbildHitta
21.
  • Carlsson, Fredrik, 1968, et al. (författare)
  • The Truth, the Whole Truth, and Nothing but the Truth - A Multiple Country Test of an Oath Script
  • 2010
  • Rapport (övrigt vetenskapligt/konstnärligt)abstract
    • Hypothetical bias is one of the main issues bedeviling the field of nonmarket valuation. The general criticism is that survey responses reflect how people would like to behave, rather than how they actually behave. In our study of climate change and emissions reductions, we took advantage of the increasing bulk of evidence from psychology and economics that addresses the effects of making promises, in order to investigate the effect of an oath script in a contingent valuation survey. The survey was conducted in Sweden and China, and its results indicate that an oath script has significant effects on respondent behavior in answering willingness-to-pay (WTP) questions, some of which vary by country. In both countries, the share of zero WTP responses and extremely high WTP responses decreases when an oath script is used, which also results in lower variance. In China, the oath script also reduces the average WTP, cutting it by half in certain instances. We also found that the oath script has different impacts on various respondent groups. For example, without the oath script, Communist party members in China are more likely than others to have a positive WTP for emissions reductions, but with the oath script, there is no longer any difference between the groups.
  •  
22.
  • Carlsson, Fredrik, 1968, et al. (författare)
  • The truth, the whole truth, and nothing but the truth - A multiple country test of an oath script
  • 2013
  • Ingår i: Journal of Economic Behavior and Organization. - : Elsevier BV. - 0167-2681. ; 89, s. 105-121
  • Tidskriftsartikel (refereegranskat)abstract
    • Hypothetical bias is one of the main issues bedeviling the field of nonmarket valuation. The general criticism is that survey responses reflect how people would like to behave, rather than how they actually behave. In our study of climate change and carbon emissions reductions, based on the increasing bulk of evidence from psychology and economics regarding the effects of making promises, we investigate the effect of an oath script in a contingent valuation survey. The survey was conducted in Sweden and China, and its results indicate that an oath script has significant effects on respondent behavior in answering willingness-to-pay (WTP) questions. In both countries, the shares of zero WTP responses and extremely high WTP responses decrease when an oath script is used, resulting in lower variance. Furthermore, the conditional WTP decreases in the Chinese but not in the Swedish sample. We also find that the effect of the oath script is not generally dependent on respondent characteristics, and the few differences we observe vary with the countries.
  •  
23.
  • Carlsson, Henrik, 1979-, et al. (författare)
  • A General Virtual Manufacturing Concept for Programming, Verification and Optimisation of Complex Control Functions
  • 2008
  • Ingår i: Proceedings of the 18th International Conference on Flexible Automation and Intelligent Manufacturing, FAIM 2008: June 30th - July 2nd, 2008, University of Skövde, Sweden. - Skövde. - 9789163327575 ; , s. 668-675
  • Konferensbidrag (refereegranskat)abstract
    • This paper describes a general virtual manufacturing concept for industrial control systems. Our virtual manufacturing concept provides a distinct advantage; programming, verification and optimisation of complex real-time dependent control functions described by real control code, which can be directly transferred to the real manufacturing system. To achieve this distinct advantage, a time synchronised virtual manufacturing system is a necessity. The aim of this paper is thus to present and to describe in detail, our proposed virtual manufacturing concept. To the authors’ knowledge no such general virtual manufacturing concept, i.e. one that can correctly handle complex real-time dependent control functions, currently exists. To summarise previous work related to virtual manufacturing and industrial control systems, several critical issues have been identified. The virtual manufacturing concept proposed in this paper addresses these issues. To verify that our concept can manage these critical issues found and further is suitable in industrial applications a virtual manufacturing test case is also presented. The test case, that includes motion control (i.e. servo), complex control functions, real control systems etc., was carried out with success.
  •  
24.
  • Carlsson, Henrik, 1979-, et al. (författare)
  • Automated Generation of Discrete Event System Simulation Models for Flexible Automation
  • 2011
  • Ingår i: The 21st International Conference on Flexible Automation and Intelligent Manufacturing. - 9789868729100 ; , s. 825-832, s. 825-832
  • Konferensbidrag (refereegranskat)abstract
    • Flexible automation cells with rapid product changes are an important competitive advantage for industries today. These cells can increase a company’s productivity and thereby increase their profits. A flexible cell shall be able to handle different products with none or minimal changes to the cell itself. A powerful tool, which can be used to analyse and verify such cells, is discrete event system simulation. Problems such as potential bottlenecks, deadlocks, answers to "what-if" questions and the level of resource utilisation can be gathered. The drawback of discrete event system simulation is that the modelling task is both time consuming and difficult to accomplish. Furthermore, state-of-the-art discrete event system simulation tools that are used in the industry today are not suitable for flexible automation. If the production scenario is changed, e.g. introduction of a new product, the simulation and modelling has to be redone and this is both time consuming and tedious. In this paper a new approach will be presented that enables discrete event simulation models to be generated automatically. The models are generated from information retrieved from a PLM/PDM database system, which is shared among other engineering tools such as robot simulation, CAD and process planning. Hence, when the cell and the database are updated a new model can easily be generated. The database is also connected to the real cell so up-to-date data can be retrieved from the real cell. The model generator described in this paper was implemented and tested in a discrete event system simulation tool and showed promising results. With this approach it is possible to handle flexible automation cells more effectively in a process planning stage.
  •  
25.
  • Carlsson, Henric, 1979-, et al. (författare)
  • General Time Synchronisation Method for PLC Programs Aiming at Virtual Verification and Development
  • 2008
  • Ingår i: 17th IFAC World. - 9783902661005 ; , s. 4440-4445
  • Konferensbidrag (övrigt vetenskapligt/konstnärligt)abstract
    • The latest state-of-the-art Computer Aided Production Engineering (CAPE) simulation technology offers OPC integration for PLC verification. A critical drawback with this technology has been identified and described within this paper. A new time synchronisation method and a simulation architecture are therefore presented and proposed. The time synchronisation method together with the architecture can be used when verifying and developing real-time dependent control logic for industrial control system, e.g. PLC with CAPE tools. The method described in this paper is general and should work on any PLCs that are compatible with the IEC 61131-3 standard. A test case was also carried out, showing that by disregarding time synchronisation it is impossible to verify real-time dependent PLC functions together with CAPE tools in a reliable way. However, the test case also shows that by applying the proposed time synchronisation method together with the described simulation architecture a successful industrial verification method is achieved
  •  
26.
  • Carlsson, Henrik, 1979-, et al. (författare)
  • Methods for Reliable Simulation-Based PLC Code Verification
  • 2012
  • Ingår i: IEEE Transactions on Industrial Informatics. - 1941-0050 .- 1551-3203. ; 8:2, s. 267-278
  • Tidskriftsartikel (refereegranskat)abstract
    • Simulation-based programmable logic controller (PLC) code verification is a part of virtual commissioning, where the control code is verified against a virtual prototype of an application. With today's general OPC interface, it is easy to connect a PLC to a simulation tool for, e. g., verification purposes. However, there are some problems with this approach that can lead to an unreliable verification result. In this paper, four major problems with the OPC interface are described, and two possible solutions to the problems are presented: a general IEC 61131-3-based software solution, and a new OPC standard solution.
  •  
27.
  •  
28.
  • Davidsson, Sabina, 1972-, et al. (författare)
  • Frequency and typing of Propionibacterium acnes in prostate tissue obtained from men with and without prostate cancer
  • 2016
  • Ingår i: Infectious Agents and Cancer. - London, United Kingdom : BioMed Central (BMC). - 1750-9378. ; 11
  • Tidskriftsartikel (refereegranskat)abstract
    • Background: Prostate cancer is the most common cancer among men in Western countries but the exact pathogenic mechanism of the disease is still largely unknown. An infectious etiology and infection-induced inflammation has been suggested to play a role in prostate carcinogenesis and Propionibacterium acnes has been reported as the most prevalent microorganism in prostatic tissue. We investigated the frequency and types of P. acnes isolated from prostate tissue samples from men with prostate cancer and from control patients without the disease.Methods: We included 100 cases and 50 controls in this study. Cases were men diagnosed with prostate cancer undergoing radical prostatectomy and controls were men undergoing surgery for bladder cancer without any histological findings of prostate cancer. Six biopsies taken from each patient's prostate gland at the time of surgery were used for cultivation and further characterization of P. acnes.Results: The results revealed that P. acnes was more common in men with prostate carcinoma than in controls, with the bacteria cultured in 60 % of the cases vs. 26 % of the controls (p = 0.001). In multivariable analyses, men with P. acnes had a 4-fold increase in odds of a prostate cancer diagnosis after adjustment for age, calendar year of surgery and smoking status (OR: 4.46; 95 % CI: 1.93-11.26). To further support the biologic plausibility for a P. acnes infection as a contributing factor in prostate cancer development, we subsequently conducted cell-based experiments. P. acnes- isolates were co-cultured with the prostate cell line PNT1A. An increased cell proliferation and cytokine/chemokine secretion in infected cells was observed.Conclusion: The present study provides further evidence for a role of P. acnes in prostate cancer development.
  •  
29.
  •  
30.
  • Djekic, Demir, 1989-, et al. (författare)
  • Effects of a Vegetarian Diet on Cardiometabolic Risk Factors, Gut Microbiota, and Plasma Metabolome in Subjects With Ischemic Heart Disease: A Randomized, Crossover Study
  • 2020
  • Ingår i: Journal of the American Heart Association. - : Wiley-Blackwell Publishing Inc.. - 2047-9980. ; 9:18, s. e016518-e016518
  • Tidskriftsartikel (refereegranskat)abstract
    • Background A vegetarian diet (VD) may reduce future cardiovascular risk in patients with ischemic heart disease. Methods and Results A randomized crossover study was conducted in subjects with ischemic heart disease, assigned to 4-week intervention periods of isocaloric VD and meat diet (MD) with individually designed diet plans, separated by a 4-week washout period. The primary outcome was difference in oxidized low-density lipoprotein cholesterol (LDL-C) between diets. Secondary outcomes were differences in cardiometabolic risk factors, quality of life, gut microbiota, fecal short-chain and branched-chain fatty acids, and plasma metabolome. Of 150 eligible patients, 31 (21%) agreed to participate, and 27 (87%) participants completed the study. Mean oxidized LDL-C (-2.73 U/L), total cholesterol (-5.03 mg/dL), LDL-C (-3.87 mg/dL), and body weight (-0.67 kg) were significantly lower with the VD than with the MD. Differences between VD and MD were observed in the relative abundance of several microbe genera within the families Ruminococcaceae, Lachnospiraceae, and Akkermansiaceae. Plasma metabolites, including l-carnitine, acylcarnitine metabolites, and phospholipids, differed in subjects consuming VD and MD. The effect on oxidized LDL-C in response to the VD was associated with a baseline gut microbiota composition dominated by several genera of Ruminococcaceae. Conclusions The VD in conjunction with optimal medical therapy reduced levels of oxidized LDL-C, improved cardiometabolic risk factors, and altered the relative abundance of gut microbes and plasma metabolites in patients with ischemic heart disease. Our results suggest that composition of the gut microbiota at baseline may be related to the reduction of oxidized LDL-C observed with the VD. Registration URL: https://www.clini​caltr​ials.gov; Unique identifier: NCT02942628.
  •  
Skapa referenser, mejla, bekava och länka
  • Resultat 21-30 av 42
Typ av publikation
tidskriftsartikel (16)
konferensbidrag (12)
rapport (8)
annan publikation (4)
bok (1)
doktorsavhandling (1)
visa fler...
visa färre...
Typ av innehåll
övrigt vetenskapligt/konstnärligt (21)
refereegranskat (21)
Författare/redaktör
Carlsson, Fredrik, 1 ... (18)
Sterner, Thomas, 195 ... (13)
Skoglundh, Magnus, 1 ... (4)
Carlsson, Per-Anders ... (4)
Lennartson, Bengt, 1 ... (3)
Hanell, Fredrik, 197 ... (3)
visa fler...
Tyrkkö, Jukka, 1972- (3)
Ihrmark, Daniel, 199 ... (3)
Fröbert, Ole, 1964- (2)
Mölling, Paula (2)
Andren, Ove, 1963- (2)
Söderquist, Bo, 1955 ... (2)
Cao, Yang, Associate ... (2)
Unemo, Magnus, 1970- (2)
Elgh, Fredrik (2)
Andersson, Swen-Olof ... (2)
Qin, Ping (2)
Hörnell, Agneta (1)
Chung, S. (1)
Janzén, Erik, 1954- (1)
Nguyen, Son Tien, 19 ... (1)
Rönnbäck, Lars, 1951 (1)
Tremaroli, Valentina ... (1)
Bäckhed, Fredrik, 19 ... (1)
Liedberg, Fredrik (1)
Abou-Ali, Hala, 1972 (1)
Trägårdh, Elin (1)
Bang, Peter (1)
CARLSSON, A (1)
Lambe, Mats (1)
Kuttah, Dina K, 1975 ... (1)
Åberg, Maria A I, 19 ... (1)
Erlingsson, Sigurdur ... (1)
García, Jorge H., 19 ... (1)
Geijer, Håkan, 1961- (1)
Lindstedt, Krister (1)
Ranhagen, Ulf, 1947- (1)
Landberg, Rikard, 19 ... (1)
Carlson, Johan, 1972 (1)
Thorslund, Birgitta, ... (1)
Nåbo, Arne, 1958- (1)
Andersson, Anders, 1 ... (1)
Savolainen, Otto, 19 ... (1)
Hellman, Fredrik, 19 ... (1)
Carlsson, Håkan, 196 ... (1)
Hjort, Mattias, 1972 ... (1)
Alenius, Malin (1)
Ståhle, Alexander (1)
Sundqvist, Pernilla, ... (1)
Deak, P (1)
visa färre...
Lärosäte
Göteborgs universitet (19)
Chalmers tekniska högskola (9)
Örebro universitet (6)
Högskolan Väst (5)
Linnéuniversitetet (3)
Umeå universitet (2)
visa fler...
Linköpings universitet (2)
Karolinska Institutet (2)
Lunds universitet (1)
VTI - Statens väg- och transportforskningsinstitut (1)
visa färre...
Språk
Engelska (41)
Svenska (1)
Forskningsämne (UKÄ/SCB)
Samhällsvetenskap (22)
Teknik (8)
Medicin och hälsovetenskap (8)
Humaniora (4)
Naturvetenskap (3)
Lantbruksvetenskap (1)

År

Kungliga biblioteket hanterar dina personuppgifter i enlighet med EU:s dataskyddsförordning (2018), GDPR. Läs mer om hur det funkar här.
Så här hanterar KB dina uppgifter vid användning av denna tjänst.

 
pil uppåt Stäng

Kopiera och spara länken för att återkomma till aktuell vy