| 1. |
- Barbosa, Edna J L, 1961, et al.
(författare)
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Extracellular water and blood pressure in adults with growth hormone (GH) deficiency: a genotype-phenotype association study.
- 2014
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Ingår i: PloS one. - : Public Library of Science (PLoS). - 1932-6203. ; 9:8
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Tidskriftsartikel (refereegranskat)abstract
- Growth hormone deficiency (GHD) in adults is associated with decreased extracellular water volume (ECW). In response to GH replacement therapy (GHRT), ECW increases and blood pressure (BP) reduces or remains unchanged. Our primary aim was to study the association between polymorphisms in genes related to renal tubular function with ECW and BP before and 1 year after GHRT. The ECW measures using bioimpedance analysis (BIA) and bioimpedance spectroscopy (BIS) were validated against a reference method, the sodium bromide dilution method (Br(-)).
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| 2. |
- Cha, Eunjung, 1985, et al.
(författare)
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Cryogenic low-noise InP HEMTs: A source-drain distance study
- 2016
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Ingår i: 2016 Compound Semiconductor Week, CSW 2016. - 9781509019649 ; , s. Article number 7528576-
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Konferensbidrag (refereegranskat)abstract
- The scaling effect of the source-drain distance was investigated in order to improve the performance of low-noise InP HEMTs at cryogenic temperatures 4-15 K. The highest dc transconductance at an operating temperature of 4.8 K and low bias power was achieved at a source-drain distance of 1.4 mu m. The extracted HEMT minimum noise temperature was 0.9 K at 5.8 GHz for a 3-stage 4-8 GHz hybrid low-noise amplifier at 10 K.
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| 3. |
- Lantz, Emelie, et al.
(författare)
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Serving the community while balancing multiple responsibilities : experiences of working as a paid part-time firefighter
- 2023
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Ingår i: International Journal of Emergency Services. - : Emerald Group Publishing Limited. - 2047-0894 .- 2047-0908. ; :1, s. 17-38
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Tidskriftsartikel (refereegranskat)abstract
- PurposeThe purpose of this study was to describe experiences of working as a paid part-time firefighter (PTF) in Swedish rural areas.Design/methodology/approachAn inductive explorative design was used, based on interviews with 18 paid PTFs in Sweden. Data were analyzed using qualitative latent content analysis.FindingsThree themes emerged from the interviews and describe paid PTFs’ experiences. The findings provide insights into how firefighters share a strong commitment, how support plays a crucial role, and how training and call-outs contribute to their experiences. Paid PTFs’ experiences are nuanced, ranging from personal limitations and challenges to satisfaction and the contrast with ordinary life.Practical implicationsThe implications for fire and rescue service organizations are that they can encourage firefighters’ commitment and pride, as well as the commitment and support of their families and main employers. Further, highlighting the importance of support and facilitating flexibility when on call is crucial. Finally, acknowledging and promoting personal development and facilitating an inclusive culture are important factors for both motivation and satisfaction.Originality/valuePaid PTFs are under-represented in the literature, despite the reliance on them in Sweden, and this study begins to address the knowledge gap. To improve retention, it is vital to understand paid PTFs work situation: what motivates them, what barriers they face, and how those challenges influence their experiences.
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| 4. |
- Nilsson, Bengt, 1982-, et al.
(författare)
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Distribution of logging residues at the clear-felled site after fuel adapted logging operations
- 2015
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Ingår i: Papers of the 23rd European Biomass Conference. - : ETA-Florence Renewable Energies. - 9788889407516 ; , s. 270-272
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Konferensbidrag (refereegranskat)abstract
- During extraction of logging residues previous studies in Sweden have shown that up to 50% of the available logging residues will not reach the energy-conversion site. The remaining potential of the logging residues are therefore lost by handling either at the clear-felled site, during transportation or due to decomposition. An outtake of 100% is not possible or desired, since the Swedish Forest Agency recommends that at least 20% of the logging residues should be left at the clear-felled site after a fuel adapted logging operation. In this study the losses at the clear-felled area is examined by studying the distribution of the remaining logging residues under and between the harvester heaps as well amount of logging residues that are left at the roadside landing after comminution. The results show that most of the reaming logging residues are well distributed at the clear-felled area between the harvester heaps. Additional logging residues are left at the clear-felled area since the forwarder cannot gather all logging residues from under the harvester heaps. In addition to this a not insignificant amount of logging residues are left at the roadside landing.
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| 5. |
- Nilsson, Daniel, et al.
(författare)
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Amount of nutrients extracted and left behind at a clear-felled area using the fresh-stacked and dried-stacked methods of logging residue extraction
- 2018
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Ingår i: Scandinavian Journal of Forest Research. - : Taylor & Francis Group. - 0282-7581 .- 1651-1891. ; 33:5, s. 437-445
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Tidskriftsartikel (refereegranskat)abstract
- Nutrient removal has been one of the key issues since the harvesting of logging residues started in Sweden. This study examined the actual removal of nutrients by measuring the amounts of biomass removed (from a forest products perspective) combined with their respective nutrient concentrations (N, P, Ca, K and Mg), from a clear-felled area when using the dried-stacked and fresh-stacked methods. The most important finding is that the two methods were very similar regarding nutrients remaining at the clear-felled area. Of the nutrients remaining there, most were found to be well distributed between the harvester heaps. Both methods fulfilled the requirements of the Swedish Forest Agency. A sensitivity analysis showed that even if the dried-stacked method left more needles, or the fresh-stacked method extracted more logging residues, there would only be a small impact on the levels of nutrients removed. The sensitivity analysis also showed that the amount of logging residues remaining between the harvester heaps seems to be much more important for nutrients left behind, regardless of extraction method. With this in mind, it is highly probable that improvements to the extraction of logging residues, without increasing nutrient removal, can be made.
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| 6. |
- Nilsson, Daniel, et al.
(författare)
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Nutrient removal after whole-tree harvesting with the traditional Swedish dried-stacked method for removal of logging residues
- 2015
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Ingår i: Papers of the 23rd European Biomass Conference. - : ETA-Florence Renewable Energies. - 9788889407516 ; , s. 9-13
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Konferensbidrag (refereegranskat)abstract
- Bioenergy from logging residues is an important contributor to Swedish energy supplies. Logging residues where long defined and regarded as the unmerchantable aboveground biomass left behind in the clear-felled area, consisting of branches, tops and small trees that are gathered after the round wood harvest, but logging residues are nowadays regarded as a third assortment next to timber and pulpwood with high economic value. However long-term experiments on removal of logging residues from Norway spruce (Picea abies (L.)Karst) stands have shown both growth reductions and growth increase in the next generation, because of decreasing amounts of nutrients. So an increased removal of logging residues requires some sort of compensation of nutrients. Therefore it is of importance to investigate how much nutrients that is removed from the stand after whole-tree harvesting.In this study the removal of the nutrients nitrogen (N), phosphorus (P), calcium (Ca), potassium (K) and magnesium (Mg) have been investigated by laboratory analysis of the nutrients together with the actual removal of stemwood, bark and logging residues. The study has also investigated the distribution of nutrients at the clear-felled area.The results show that approximately half of the total nutrient removed in whole tree harvesting is done with the removal of stemwood and bark. The results also show that approximately 30% of the total amount of nutrients is left at the clear-felled area.
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| 7. |
- Nilsson, Per-Åke, 1964, et al.
(författare)
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An InP MMIC process optimized for low noise at Cryo
- 2014
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Ingår i: Technical Digest - IEEE Compound Semiconductor Integrated Circuit Symposium, CSIC. - 1550-8781. - 9781479936229
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Konferensbidrag (refereegranskat)abstract
- An InP MMIC process was developed and optimized for ultra-low noise amplifiers (LNAs) operating at cryogenic temperature. The amplifiers from the process are working up to 100 GHz. The processed wafers are 4" and can carry more than 4000 3-stage units. For a significant number of 6-20 GHz 3-stage LNAs we have measured an average noise temperature of 5.8 K at ambient temperature of 10 K, state of the art in this frequency range, and 66.3 K at 300K. Associated gain was 35.9 dB (10K) and 33.2 dB (300 K). The standard deviation at room temperature for 47 LNAs was 1.5 K for the noise and 0.3 dB for the gain.
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| 8. |
- Schleeh, Joel, 1986, et al.
(författare)
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Cryogenic LNAs for SKA band 2 to 5
- 2017
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Ingår i: IEEE MTT-S International Microwave Symposium Digest. - 0149-645X. - 9781509063604 ; , s. 164-167
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Konferensbidrag (refereegranskat)abstract
- Four ultra-low noise cryogenic MMIC LNAs suitable for the Square Kilometer Array (SKA) band 2 to 5 (0.95-13.8 GHz) have been designed, fabricated, packaged and tested. The LNAs are based on 4×50, 8×50 and 16×50 μm HEMTs, designed for stable cryogenic operation, allowing the combination of good noise performance and return loss. The lowest noise temperatures measured in the four bands were 1.0 K, 1.2 K, 1.6 K and 2.6 K, respectively.
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| 9. |
- Ahlroth Pind, Caroline, et al.
(författare)
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Patient-reported signs of dampness at home may be a risk factor for chronic rhinosinusitis : A cross-sectional study
- 2017
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Ingår i: Clinical and Experimental Allergy. - Hoboken : Wiley. - 0954-7894 .- 1365-2222. ; 47:11, s. 1383-1389
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Tidskriftsartikel (refereegranskat)abstract
- BACKGROUND: An association between dampness at home and respiratory conditions has been convincingly demonstrated in children. Fewer studies have been performed in adults, and data are lacking for chronic rhinosinusitis (CRS). With a prevalence of 10.9% in Europe, CRS imposes a significant burden on quality of life, as well as economy.OBJECTIVE: Our aim was to study CRS and other respiratory conditions in relation to dampness at home in a representative sample of adults.METHODS: The Swedish GA2 LEN questionnaire was answered by 26 577 adults (16-75 years) and included questions on respiratory symptoms, smoking, education and environmental exposure. CRS was defined according to the EP3 OS criteria. Dampness was defined as reporting water damage, floor dampness or visible moulds in the home during the last 12 months. The dampness score was ranked from 0 to 3, counting the number of signs of dampness reported.RESULTS: Dampness at home was reported by 11.3% and was independently related to respiratory conditions after adjustment for demographic and socio-economic factors and smoking: CRS odds ratio (OR) 1.71; allergic rhinitis OR 1.24; current asthma OR 1.21; wheeze OR 1.37; nocturnal dyspnoea OR 1.80; nocturnal coughing OR 1.34; and chronic bronchitis OR 1.64. The risk of CRS and most of the other respiratory conditions was further elevated in subjects reporting multiple signs of dampness.CONCLUSIONS AND CLINICAL RELEVANCE: This study demonstrated an independent association between dampness at home and CRS in adults. The high burden of this and the other respiratory conditions studied is a strong argument in favour of countering indoor dampness by improving building standards.
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| 10. |
- Allert, Camilla, 1972-, et al.
(författare)
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Voluntary first responders’ experiences of being dispatched to suspected out-of-hospital cardiac arrest in rural areas : an interview study
- 2024
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Ingår i: BMC Cardiovascular Disorders. - : BioMed Central (BMC). - 1471-2261. ; 24:1
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Tidskriftsartikel (refereegranskat)abstract
- Background: Out-of-hospital cardiac arrest (OHCA) is a leading cause of death, and survival outcomes vary across countries and regions. To improve survival, the European Resuscitation Council Guidelines encourage the implementation of technologies like smartphone applications to alert voluntary first responders (VFRs) who are near a suspected OHCA. VFRs are of great importance in the ´chain of survival´, but there is still a lack of knowledge about their experiences; especially of those operating in rural areas. Understanding those experiences is crucial in developing appropriate interventions to train, encourage, and safeguard VFRs in their mission. Therefore, the aim of this study was to describe VFRs´ experiences of being dispatched to suspected OHCA in rural areas.Methods: The study used an inductive design. The data were collected using individual interviews with 16 VFRs and analysed using qualitative content analysis.Results: The results are presented in terms of six generic categories ‘‘Being motivated and prepared’’, ‘‘Having strategies to undertake the mission’’, ‘‘Collaborating with others’’, ‘‘Being ethically aware’’, ‘‘Supporting the family members’’, and ‘‘Coping with the mission’’, which formed the basis of the main category ‘Desire to save lives and help others’. The findings showed that VFRs had a genuine desire to contribute to save lives in this rural area. Regardless of the circumstances, they were prepared to leave everything and act to the best for the victim and their family members. In theirs’ missions they collaborated with others at the scene and were guided by ethics while they acted in complex circumstances.Conclusions: VFRs dispatched in rural areas express a desire to save lives. In their missions, they acted in complex situations and experienced both emotional and ethical challenges.The design, implementation, and evaluation of support interventions directed at VFRs should be prioritised, especially in rural areas, as it can contribute to more people becoming and remaining VFRs, which in turn could contribute to sustainable development.
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