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| 2. |
- Adner, Mikael, et al.
(författare)
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Contractile endothelin-B (ETB) receptors in human small bronchi
- 1996
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Ingår i: European Respiratory Journal. - ERS Journals Ltd. - 0903-1936. ; 9:2, s. 351-355
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Tidskriftsartikel (refereegranskat)abstract
- Endothelins (ETs) are a family of novel regulatory peptides and various lines of evidence suggest an important role for ETs in regulating pulmonary function. Two receptors for endothelin, ETA and ETB, have been found in the human lung, and according to recent studies a non-ETA receptor seems to mediate the contraction of large sized human bronchi. Several studies have emphasized the importance of small bronchi in the pathogenesis of airway disease. In the present paper, improved methodology was used which enables in vitro studies of small human bronchi down to a diameter of 0.5-1.0 mm. Using the new methodology we have tried to further characterize this receptor. Small bronchi from the distal parts of the bronchial tree were obtained from pulmonary tissue removed from 15 patients with lung cancer. They were dissected and cut into ring segments, in which isometric tension was recorded. ET-1, ET-2 and ET-3 elicited strong concentration-dependent contractions of the human small bronchus. Basically, the three peptides were equipotent with about the same maximal response. Upon reapplication, they all showed the same tachyphylaxis pattern, reaching half the initial contraction. Comparative analysis of IRL 1620, a selective ETB receptor agonist, revealed that the effect of the ETB agonist was, in all respects, similar to the responses induced by the ETs. PD 145065, a combined ETA/ETB receptor antagonist competitively inhibited the contractions induced by IRL 1620, whereas FR139317, a selective ETA receptor antagonist, was without effect. In conclusion, the present study shows that accurate measurements can be made in vitro on small human bronchi and all present data are in favour of an ETB receptor mediating endothelin-induced contraction of human bronchi smaller than 1.0 mm.
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| 3. |
- Ahlén, Anders, et al.
(författare)
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Wireless IP - a new PCC project
- 1999
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Ingår i: Proc. PCC Workshop, Lund, Sweden. ; s. 100-101
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Konferensbidrag (refereegranskat)
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| 4. |
- Albin, Maria, et al.
(författare)
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Risk Assessment for Carbon Nanotubes
- 2011
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Ingår i: Arbete och Hälsa. - Occupational and Environmental Medicine, Sahlgrenska Academy, University of Gothenburg. - 0346-7821. - 978-91-85971-32-9 ; 45:5, s. 1
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Annan publikation (refereegranskat)
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| 5. |
- Backlund, Sandra, 1986-, et al.
(författare)
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Energy efficiency potentials and energy management practices in Swedish firms
- 2012
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Konferensbidrag (övrigt vetenskapligt)abstract
- In order to improve energy efficiency and reach the EU:s 20-20-20 primary energy saving target, focus has mainly been on diffusion of technology. Previous studies have illustrated large untapped energy saving potentials from implementing energy management practices in firms. Energy management practices have large effects on energy utilization and also a short pay-back time. According to these studies, energy management practices also effect investment decisions and the outcome of investments in energy efficient technologies. This paper investigates to what extent energy management practices influence firms estimation of energy efficiency potentials. Further it investigates two Swedish policy programs that promote industrial energy management practices: The Programme For improving Energy efficiency in energy-intensive industry (PFE) and the energy audit program and whether these have increased energy management practices in Swedish firms. A multiple case study has been conducted in order to investigate energy practices in firms in different industrial sectors. Employment of energy management varies between firms. The firms estimate equal energy efficiency potentials from implementation of energy efficient technology as for energy management practices. In total the firms estimate energy efficiency potentials of 12 %. The study shows that firms that have participated in the programs work more actively with energy management. This can be illustrated by the fact that 75 % of the firms that have not participated in any of the programs lack a person responsible for energy management and 50 % also lack a long term energy strategy. For firms that have participated in the programs the corresponding figures are 30 % and 33 %. The results indicate an untapped potential of energy efficiency measures that could be reached through increased energy management in Swedish industries.
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| 6. |
- Backlund, Sandra, 1986-, et al.
(författare)
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Extending the Energy efficiency gap
- 2012
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Ingår i: Energy Policy. - Elsevier. - 0301-4215. ; 51, s. 392-396
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Tidskriftsartikel (refereegranskat)abstract
- In order to reach the EU: s 20–20–20 primary energy savings target, energy efficiency needs to increase. Previous research on energy use and energy efficiency has focused mainly on the diffusion of energy efficient technologies. The discrepancy between optimal and actual implementation of energy efficient technologies has been illustrated in numerous articles and is often referred to as the energy efficiency gap. However, efficient technologies are not the only ways to increase energy efficiency. Empirical studies have found that a cost-effective way to improve energy efficiency is to combine investments in energy-efficient technologies with continuous energy management practices. By including energy management into an estimated energy efficiency potential this paper introduces an extended energy efficiency gap, mainly in manufacturing industries and the commercial sector. The inclusion of energy management components in future energy policy will play an important role if the energy savings targets for 2020, and later 2050, are to be met in the EU.
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| 9. |
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| 10. |
- Falahati, Sorour, 1971-, et al.
(författare)
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EU FP6 IST-2003-507581 WINNER, D2.4 Assessment of adaptive transmission technologies, Feb 2005
- 2005
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Rapport (övrigt vetenskapligt)abstract
- This document contains a first assessment of adaptive transmission schemes and how these fit to the different WINNER scenarios. It focuses on an adaptation due to the channel properties that may vary both in time and frequency or, with respect to the selected antennas, in an OFDM-based air interface. Besides the evaluation by analysis, link simulation and multilink simulation, first detailed designs are presented of adaptive transmission feedback systems for the WINNER FDD and TDD physical layer modes.
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