| 1. |
- Averfalk, Helge, 1988-, et al.
(författare)
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Klimatgaser i Halland – en målinriktad analys med framtidsperspektiv
- 2014
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Rapport (övrigt vetenskapligt/konstnärligt)abstract
- Rapporten innehåller en analys av utsläppen av de sex klimatgaserna i Halland mellan 1990 och 2011, en skattning vad som kommer att genomföras till 2020 och förslag till åtgärder för att kunna leverera utsläppsreduktioner efter 2020. Resultaten visar att de halländska utsläppen har minskat med 20 procent sedan 1990, målet om 27 procent lägre utsläpp till 2020 kommer troligen att uppnås, transporter och jordbruk måste kunna leverera utsläppsreduktioner efter 2020, regionala plan- och styrdokument måste i större utsträckning kunna kvantifiera framtida utsläppsreduktioner samt att det behövs ett regionalt kompetenscenter i Halland för att länet ska kunna leverera utsläppsreduktioner i framtiden.
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| 2. |
- Berger, Helge, et al.
(författare)
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A note of caution on the relation between money growth and inflation
- 2023
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Ingår i: Scottish Journal of Political Economy. - : John Wiley & Sons. - 0036-9292 .- 1467-9485. ; 70:5, s. 479-496
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Tidskriftsartikel (refereegranskat)abstract
- We assess the bivariate relation between money growth and inflation in the euro area and the United States using hybrid time-varying parameter Bayesian VAR models. Model selection based on marginal likelihoods suggests that the relation is statistically unstable across time in both regions. The effect of money growth on inflation weakened notably after the 1980s before strengthening after 2020. There is evidence that this time variation is related to the pace of price changes, as we find that the maximum impact of money growth on inflation is increasing in the trend level of inflation. These results caution against asserting a simple, time-invariant relationship when modeling the joint dynamics of monetary aggregates and consumer prices.
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| 3. |
- Bredvold, Randi, 1957-
(författare)
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Entreprenørers fortellinger : en identitetsstudie i det opplevelsesbaserte reiselivet
- 2011
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Doktorsavhandling (övrigt vetenskapligt/konstnärligt)abstract
- This is a narrative study in which five entrepreneurs in the experience-based tourist industry have told their life-stories in connection with their establishing and running their own enterprises. Over the last decades the number of adventure-based companies has markedly increased in tourist industry, but the knowledge gained through the research on the persons who establish these companies is scant. Through focusing on the constructions of identity of the entrepreneurs, this study gives nuanced pictures of the chain of events that had lead an individual to establish one`s own company. In addition, these pictures offer deeper understanding of how these individuals perceive themselves as the founder and manager of an experience-based company. Over the last decades research in entrepreneurship has criticized the imbalanced focus on the entrepreneurs' personal characteristics and it's use as an explanation of their entrepreneurial activities. In the same critical vein I question whether motivational studies are able to explain why certain individuals choose to establish their own business. Indeed, these five stories show that an entrepreneur is not something one is but something one becomes. Although the concept of an experiential economy appeared at the end of the 1990s, the production of experiences has a long tradition in the tourist industry. Norwegian tourism has faced an uphill struggle for several decades, which worries both the authorities and the industry itself. In recent decades the focus has been directed more and more on the dimension of experience. One hopes that the creation of new and attractive adventures will help to reverse the negative trend in the industry. Effecting this reversal places a heavy responsibility on the entrepreneurs since they are to be the driving force in this process. Tourist adventures have been one of several core themes within the field of research in tourism for decades, but this focus has mainly been on the perspective of the consumer. In contrast, this study concentrates on the producers, a group about whom we know much less. The five entrepreneurs who tell their story in this study give detailed descriptions of their life until the establishment of their businesses, and we see that each of them describes a number of causal chains that are interwoven and together create a meaningful picture of their choice. Through focusing on their reflexive identity-constructions and viewing these in light of the concrete situations they were in, before they established their enterprises, we gain a deeper understanding of this choice. Through the process of categorizing these reflexive identity-constructions, three distinct ontological positions emerge, that is, different ways in understanding reality. The study shows that there is a connection between these ontological positions and the ways that the entrepreneurs run their businesses, as well as their understanding of how they create and produce adventures for their guests.
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| 4. |
- Brändström, Helge, et al.
(författare)
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Autonomic nerve system responses for normal and slow rewarmers after hand cold provocation : effects of long-term cold climate training
- 2013
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Ingår i: International Archives of Occupational and Environmental Health. - : Springer-Verlag New York. - 0340-0131 .- 1432-1246. ; 86:3, s. 357-365
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Tidskriftsartikel (refereegranskat)abstract
- PURPOSE: Differences among individuals concerning susceptibility to local cold injury following acute cold exposure may be related to function of the autonomic nervous system. We hypothesized that there are differences in heart rate variability (HRV) between individuals with normal or more pronounced vasoconstriction following cold exposure and that there is an adaptation related to prolonged cold exposure in autonomic nervous system response to cold stimuli.METHODS: Seventy-seven young men performed a cold provocation test, where HRV was recorded during cold hand immersion and recovery. Forty-three subjects were re-examined 15 months later, with many months of cold weather training between the tests. Subjects were analyzed as 'slow' and 'normal' rewarmers according to their thermographic rewarming pattern.RESULTS: For the 'pre-training' test, before cold climate exposure, normal rewarmers had higher power for low-frequency (P(LF)) and high-frequency (P(HF)) HRV components during the cold provocation test (ANOVA for groups: p = 0.04 and p = 0.005, respectively). There was an approximately 25 % higher P(HF) at the start in normal rewarmers, in the logarithmic scale. Low frequency-to-high frequency ratio (P(LF)/P(HF)) showed lower levels for normal rewarmers (ANOVA for groups: p = 0.04). During the 'post-training' cold provocation test, both groups lacked the marked increase in heart rate that occurred during cold exposure at the 'pre-training' setting. After cold acclimatization (post-training), normal rewarmers showed lower resting power values for the low-frequency and high-frequency HRV components. After winter training, the slow rewarmers showed reduced low-frequency power for some of the cold provocation measurements but not all (average total P(LF), ANOVA p = 0.05), which was not present before winter training.CONCLUSIONS: These HRV results support the conclusion that cold adaptation occurred in both groups. We conclude that further prospective study is needed to determine whether cold adaptation provides protection to subjects at higher risk for cold injury, that is, slow rewarmers.
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| 5. |
- Cai, Yixiao, et al.
(författare)
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Strategy towards independent electrical stimulation from cochlear implants : Guided auditory neuron growth on topographically modified nanocrystalline diamond
- 2016
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Ingår i: Acta Biomaterialia. - : Elsevier BV. - 1742-7061 .- 1878-7568. ; 31, s. 211-220
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Tidskriftsartikel (refereegranskat)abstract
- Cochlear implants (CI) have been used for several decades to treat patients with profound hearing loss. Nevertheless, results vary between individuals, and fine hearing is generally poor due to the lack of discrete neural stimulation from the individual receptor hair cells. A major problem is the deliverance of independent stimulation signals to individual auditory neurons. Fine hearing requires significantly more stimulation contacts with intimate neuron/electrode interphases from ordered axonal re-growth, something current CI technology cannot provide.Here, we demonstrate the potential application of micro-textured nanocrystalline diamond (NCD) surfaces on CI electrode arrays. Such textured NCD surfaces consist of micrometer-sized nail-head-shaped pillars (size 5 5 lm2) made with sequences of micro/nano-fabrication processes, including sputtering, photolithography and plasma etching.The results show that human and murine inner-ear ganglion neurites and, potentially, neural progenitor cells can attach to patterned NCD surfaces without an extracellular matrix coating. Microscopic methods revealed adhesion and neural growth, specifically along the nail-head-shaped NCD pillars in an ordered manner, rather than in non-textured areas. This pattern was established when the inter-NCD pillar distance varied between 4 and 9 lm.The findings demonstrate that regenerating auditory neurons show a strong affinity to the NCD pillars, and the technique could be used for neural guidance and the creation of new neural networks. Together with the NCD’s unique anti-bacterial and electrical properties, patterned NCD surfaces could provide designed neural/electrode interfaces to create independent electrical stimulation signals in CI electrode arrays for the neural population.
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| 6. |
- Falnes Olsen, Åge Andreas, et al.
(författare)
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Conformance assessment of electrical energy meters investigated by risk analysis – a case study
- 2016
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Ingår i: OIML Bulletin. ; 57:2, s. 5-20
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Tidskriftsartikel (övrigt vetenskapligt/konstnärligt)abstract
- This paper presents a case study of more effective decision rules for the conformance assessment of electrical energy meters in private households in Norway, and proposes how to use a specific risk analysis in order to set the time for the next meter test. The MID regulation today prescribes conformance assessment of electrical energy meters based on ISO standards for attribute sampling where decision rules are purely statistical decision rules and economic consequences are not explicitly taken into account. The risk analysis we introduce calculates the risks involved for erroneous decisions, either rejecting a conforming batch of meters (the producer risk) or accepting a non-conforming batch (the consumer risk). The consumer risk is sensitive to the period until the next test which becomes a quality characteristic of each batch. This time interval can be optimized by balancing the consumer risk against the producer risk. When the quality drops, the period until the next test will need to become shorter. But at a certain level of quality, the energy net supplier would rather replace the complete batch, than continue testing at such short intervals.
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| 7. |
- Godhe, Manne, et al.
(författare)
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Isokinetic muscle torque and endurance in limbs and trunk in children and adolescents : A longitudinal study
- 2019
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Ingår i: Clinical and Medical Investigations. - : OA text. - 2398-5763. ; 4:4
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Tidskriftsartikel (refereegranskat)abstract
- Purpose: To measure isokinetic peak torque during elbow, knee and trunk extension and flexion and muscle endurance during elbow and knee extension.Method: Muscle endurance and peak torque were measured using Cybex methodology in totally 115 boys and 48 girls from 8 to 15 years of age most of them for five years.Results: Knee muscle endurance was mainly unchanged while elbow fatigue index was lightly reduced from 11 to 15 years in both sexes with no difference between sexes. From the youngest ages to adolescence peak absolute (N.m) and normalized (N.m/kg body mass) torque increases in all measures with highest increase in the trunk and lowest in elbow activities. During elbow activity boys are stronger than girls from age 11. For trunk and knee activity the sex differences start at age 14 years. Knee, elbow and trunk extension/flexion ratios as well as knee/elbow both extension and flexion ratios are mainly unchanged with increasing age with no differences between sexes.Conclusion: Data indicate that elbow isokinetic strength and endurance profile is partly different from corresponding data during knee and trunk activity.
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| 8. |
- Helge, E. W., et al.
(författare)
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Recreational football training decreases risk factors for bone fractures in untrained premenopausal women
- 2010
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Ingår i: Scandinavian Journal of Medicine & Science in Sports. - : Wiley. - 1600-0838 .- 0905-7188. ; 20:s1, s. 31-39
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Tidskriftsartikel (refereegranskat)abstract
- The present intervention was designed to investigate whether a 14-week period of regular recreational association football (F) or endurance running (R) has an effect on the risk of falls and bone fractures due to gains in muscle function and volumetric bone mineral density (vBMD). Fifty healthy untrained Danish premenopausal women were randomized into two training groups (F and R) that trained 1.8 +/- 0.3 (+/- SD) and 1.9 +/- 0.3 h/week, respectively, and these groups were compared with an inactive control group (C). Jumping and dynamic muscle strength were tested and tibial vBMD was measured using peripheral quantitative computed tomography. Total vBMD in left and right tibia increased by 2.6 +/- 2.3% and 2.1 +/- 1.8% (P < 0.005), respectively, in F and by 0.7 +/- 1.3% (P=0.05) and 1.1 +/- 1.5% (P < 0.01), respectively, in R without any significant changes in C. Similar results were found for trabecular vBMD. In F, peak jump power increased by 3 +/- 6% (P < 0.05), and hamstring strength during fast (240 degrees/s) and slow (30 degrees/s) contractions increased by 11 +/- 25% and 9 +/- 21%, respectively, (P < 0.05) without any significant changes in R or C. In conclusion, 14 weeks of regular recreational football improved peak jump power, maximal hamstring strength and vBMD in the distal tibia, suggesting a decreased fracture risk due to stronger bones and a reduced risk of falling.
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| 9. |
- Jansson, Anna M, et al.
(författare)
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Prognostic value of circulating chromogranin A levels in acute coronary syndromes.
- 2009
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Ingår i: European heart journal. - : Oxford University Press (OUP). - 1522-9645 .- 0195-668X. ; 30:1, s. 25-32
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Tidskriftsartikel (refereegranskat)abstract
- To determine whether circulating levels of chromogranin A (CgA) provide prognostic information independently of conventional risk markers in acute coronary syndromes (ACSs).
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| 10. |
- Jidesjö, Anders, et al.
(författare)
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Science for all or science for some: What Swedish students want to learn about in secondary science and technology and their opinions on science lessons
- 2009
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Ingår i: NorDiNa. - : UiO, University of Oslo. - 1504-4556 .- 1894-1257. ; 5:2, s. 213-229
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Tidskriftsartikel (refereegranskat)abstract
- This article presents Swedish results from ‘the Relevance of Science Education’ (ROSE) study, which is a large world wide comparative research project based at the University of Oslo. The Swedish sample consisted of 751 students, most of whom were 15 years old, from 29 schools and data were collected in spring 2003. Student opinions about science lessons are presented in relation to enrolment intentions for upper secondary school together with what they want to learn about in science and technology. The findings indicate that secondary science instruction seems to address only a minority of the students, those that have chosen science or technology in their further education. At the same time, all students have interest in science and technology and many seem most interested in some important issues in societal development. The results are discussed from the perspective of learners and contribute to the debate about establishing a scientific literacy approach in compulsory education.
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