| 1. |
- Fredriksson, Anna, 1979-, et al.
(författare)
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Hur taktisk planering kan underlätta resursplanering i byggbranschen – Processer och IT-verktyg
- 2017
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Konferensbidrag (övrigt vetenskapligt/konstnärligt)abstract
- Syftet med denna artikel är att visa på hur resurser inom byggföretag kan planeras på taktisk nivå med hjälp av optimeringsverktyg. Den rådande högkonjunkturen i Sverige med högre efterfrågan från beställare än vad byggentreprenörerna kan levererar måste entreprenörerna aktivt välja vilka projekt man ska gå in med anbud på. Beslutet måste vara välgrundat på information gällande efterfrågade projekt, tillgängliga resurser och potentiell vinstmarginal på projekten. Det är här taktisk planering kommer in genom att balansera potentiella projekt med den kapacitet byggföretaget har för att kunna gå in med anbud på de projekt som genererar högst vinstmarginal. Genom att studera två byggföretag (NCC och Arcona) presenteras processer och IT-verktyg för taktisk planering inom bygg. I NCC:s fall har fokus legat på att skapa sammanhållna processer och IT-verktyg för att hämta in data om framtida projekt och aktivt välja rätt projekt baserat på vilka reseurs dessa kräver, vilken kapacitet man har tillgängliga när projektet startar och vad vinstmarginalen blir. I Arconas fall har fokus legat på att skapa sammanhållna processer och IT-verktyg för att balanser aktiviteter och materialbehov genom hela byggprojektet. På så sätt kan man i framtiden bättre planera behovet av kapacitet i deras nyutvecklade terminallösning baserat på hur mycket material som kan tänkas flöda genom den mht framtida projekt. Resultatet från studien visar på behovet av taktisk planering bland byggföretagen och hur den planeringen agerar som en länk mellan strategiska beslut och operativt arbete. Detta är ett viktigt bidrag för byggföretagen då de har beslutsstöd för att kunna fatta ett välgrundat beslut på vilka projekt man ska gå in med anbud på.
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| 2. |
- Strömberg, Anna-Karin, et al.
(författare)
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Changes in cochlear function related to acoustic stimulation of cervical vestibular evoked myogenic potential stimulation
- 2016
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Ingår i: Hearing Research. - : Elsevier. - 0378-5955 .- 1878-5891. ; 340, s. 43-49
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Tidskriftsartikel (refereegranskat)abstract
- Evaluation of cervical evoked myogenic potentials (c-VEMP) is commonly applied in clinical investigations of patients with suspected neurotological symptoms. Short intense acoustic stimulation of peak levels close to 130 dB SPL is required to elicit the responses. A recent publication on bilateral significant sensorineural hearing loss related to extensive VEMP stimulation motivates evaluations of immediate effects on hearing acuity related to the intense acoustic stimulation required to elicit c-VEMP responses. The aim of the current study was to investigate changes in DPOAE-levels and hearing thresholds in relation to c-VEMP testing in humans. More specifically, the current focus is on immediate changes in hearing thresholds and changes in DPOAE-levels at frequencies 0.5 octaves above the acoustic stimulation when applying shorter tone bursts than previously used. Hearing acuity before and immediately after exposure to c-VEMP stimulation was examined in 24 patients with normal hearing referred for neurotologic testing. The stimulation consisted of 192 tonebursts of 6 ms and was presented at 500 Hz and 130 dB peSPL. Bekesy thresholds at 0.125-8 kHz and DPOAE I/O growth functions with stimulation at 0.75 and 3 kHz were used to assess c-VEMP related changes in hearing status. No significant deterioration in Bekesy thresholds was detected. Significant reduction in DPOAE levels at 0.75 (0.5-1.35 dB) and 3 kHz (1.6-2.1 dB) was observed after c-VEMP stimulation without concomitant changes in cochlear compression. The results indicated that there was no immediate audiometric loss related to c-VEMP stimulation in the current group of patients. The significant reduction of DPOAE levels at a wider frequency range than previously described after the c-VEMP test could be related to the stimulation with shorter tone bursts. The results show that c-VEMP stimulation causes reduction in DPOAE-levels at several frequencies that corresponds to half the reductions in DPOAE levels reported after exposure to the maximally allowed occupational noise for an 8 h working day. Consequently, extended stimuli intensity or stimulation repetition with c-VEMP testing should be avoided to reduce the risk for noise-induced cochlear injury.
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| 3. |
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| 4. |
- Thellman, Sam, et al.
(författare)
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He is not more persuasive than her: No gender biases toward robots giving speeches
- 2018
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Ingår i: Proceedings of the 18th International Conference on Intelligent Virtual Agents. - New York, NY, USA : ACM Digital Library. - 9781450360135 ; , s. 327-328
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Konferensbidrag (refereegranskat)abstract
- The reported study investigated three gender-related effects on the rated persuasiveness of a speech given by a humanoid robot: (1) the female or male gendered voice and visual appearance of the robot, (2) the female or male gender of the participant, and (3) the interaction between robot gender and participant gender. The study employed a measure of persuasiveness based on the Aristotelian modes of persuasion: ethos, pathos and logos. In contrast to previous studies on gender bias toward intelligent virtual agents and robots, the gender of the robot did not influence the rated persuasiveness of the speech, and female participants rated the speech as more persuasive than men overall.
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| 5. |
- Thunberg, Micael, et al.
(författare)
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PLANNING IN CONSTRUCTION - HOW ARE THE DIFFERENT PLANNING PROCESSES LINKED?
- 2017
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Ingår i: PROCEEDINGS OF THE 33rd ANNUAL CONFERENCE, ARCOM (Association of Researchers in Construction Management). - : ARCOM, Association of Researchers in Construction Management. - 9780995546318
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Konferensbidrag (refereegranskat)abstract
- There is a current debate among construction researchers that resources and materials are not efficiently coordinated between projects, which in the long-run can negatively affect productivity and profitability. Other industries have improved resource utilisation with a hierarchical perspective on planning and tactical planning, the MPC perspective (Manufacturing Planning and Control). Adopting this way of planning among construction contractors would allow for improved coordination and resource utilisation as an overview of the project portfolio is taken. However, this perspective is new to construction contractors and learnings need to be gathered for understanding MPC in a construction context. The purpose of this paper is by taking a MPC perspective to increase the understanding of how resources and materials can be coordinated within a contractor’s project portfolio on a tactical level. The study is based on case studies within two Swedish contractors. The study presents a structure for how to include a tactical planning process within a contractor’s overall planning and what the main components are of this process.
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| 6. |
- Ydreborg, Magdalena, 1974, et al.
(författare)
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Impact of IL28B-Related Single Nucleotide Polymorphisms on Liver Transient Elastography in Chronic Hepatitis C Infection
- 2013
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Ingår i: Plos One. - : Public Library of Science (PLoS). - 1932-6203. ; 8:11
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Tidskriftsartikel (refereegranskat)abstract
- Background and Aims: Recently, several genome-wide association studies have revealed that single nucleotide polymorphisms (SNPs) in proximity to IL28B predict spontaneous clearance of hepatitis C virus (HCV) infection as well as outcome following pegylated interferon and ribavirin therapy among genotype 1 infected patients. Additionally the presence of the otherwise favorable IL28B genetic variants in the context of HCV genotype 3 infection reportedly entail more pronounced liver fibrosis and steatosis. The present study aimed to evaluate the impact of IL28B SNP variability on liver stiffness as accessed by transient elastography. Methods: Seven hundred and seventy-one Swedish HCV infected patients sequentially undergoing liver stiffness measurement by means of Fibroscan (R) in the context of a real-life trial had samples available for IL28B genotyping (rs12979860) and HCV genotyping. Results: CCrs12979860 was more common among HCV genotype 2 or 3 infected treatment-naive patients than among those infected with genotype 1 (P<0.0001). Additionally CCrs12979860 among HCV genotype 3 infected patients was associated with higher liver stiffness values (P = 0.004), and higher AST to platelet ratio index (APRI; p = 0.02) as compared to carriers of the T allele. Among HCV genotype 1 infected patients, CCrs12979860 was significantly associated with higher viral load (P = 0.001), with a similar non-significant trend noted among HCV genotype 3 infected patients. Conclusion: This study confirms previous reports that the CCrs12979860 SNP is associated with more pronounced liver pathology in patients chronically infected with HCV genotype 3 as compared to genotype 1, suggesting that IL28B genetic variants differently regulates the course of HCV infection across HCV genotypes.
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